Air-Cooled Scroll Chillers

Air-Cooled Scroll Chillers
Installation
Operation
Maintenance
Air-Cooled Scroll Chillers
Model CGAM
20 — 120 Tons – Made in USA
February 2010
CG-SVX17C-EN
Warnings and Notices
Note that warnings and notices appear at appropriate intervals throughout this manual. Warnings
are provided to alert installing contractors to potential hazards that could result in personal injury
or death. Cautions are designed to alert personnel to hazardous situations that could result in
personal injury, while notices indicate a situation that could result in equipment or propertydamage-only accidents.
Your personal safety and the proper operation of this machine depend upon the strict observance
of these precautions.
ATTENTION: Warnings, Cautions and Notices appear at appropriate sections throughout
this literature. Read these carefully.
WARNING: Indicates a potentially hazardous situation which, if not avoided, could result
in death or serious injury.
CAUTION: Indicates a potentially hazardous situation which, if not avoided, could result in
minor or moderate injury. It could also be used to alert against unsafe practices.
NOTICE: Indicates a situation that could result in equipment or property-damage only
accidents.
NOTICE: Environmental Concerns!
Scientific research has shown that certain man-made chemicals can affect the earth's naturally
occurring stratospheric ozone layer when released to the atmosphere. In particular, several of the
identified chemicals that may affect the ozone layer are refrigerants that contain Chlorine, Fluorine
and Carbon (CFCs) and those containing Hydrogen, Chlorine, Fluorine and Carbon (HCFCs). Not all
refrigerants containing these compounds have the same potential impact to the environment.
Trane advocates the responsible handling of all refrigerants-including industry replacements for
CFCs such as HCFCs and HFCs.
NOTICE: Responsible Refrigerant Practices!
Trane believes that responsible refrigerant practices are important to the environment, our
customers, and the air conditioning industry. All technicians who handle refrigerants must be
certified. The Federal Clean Air Act (Section 608) sets forth the requirements for handling,
reclaiming, recovering and recycling of certain refrigerants and the equipment that is used in these
service procedures. In addition, some states or municipalities may have additional requirements
that must also be adhered to for responsible management of refrigerants. Know the applicable
laws and follow them.
WARNING: Refrigerant Warning Information!
Trane Model CGAM chillers use R-410A refrigerant which is a high-pressure refrigerant and
requires careful attention to proper storage and handling procedures.
Use only manifold gauge sets designed for use with R-410A refrigerant. Use only refrigerant
recovery units and cylinders designed for the higher pressures of R-410A refrigerant and POE oil.
R-410A must only be charged into the unit in a liquid state!
R-410A refrigerant must be stored in a clean, dry area out of sunlight. Never heat or allow
refrigerant storage cylinder temperatures to reach 125°F or store the cylinders where
temperatures will exceed 125°F. Keep cylinder valves tightly closed and valve caps in place when
refrigerant cylinders are not in use.
© 2010 Trane All rights reserved
CG-SVX17C-EN
WARNING: Personal Protective Equipment (PPE) Required!
Always refer to appropriate MSDS and OSHA guidelines when handling refrigerants. Use proper
breathing, eye and body protection when handling refrigerants. Failure to follow proper
handling guidelines could result in serious injury or death.
WARNING: Live Electrical Components
During installation, testing, servicing and troubleshooting of this product it may be necessary to
work with live electrical components. Have a qualified, licensed electrician or other person who
has been properly trained in working with live electrical components perform these tasks.
Failure to follow all electrical safety precautions when exposed to live electrical components
could result in serious injury or death.
NOTICE: Trademarks
Trane and the Trane logo are trademarks of Trane in the United States and other countries. All
trademarks referenced in this document are the trademarks of their respective owners.
CG-SVX17C-EN
3
Table of Contents
Model Number Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Unit Nameplate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Unit Model Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Compressor Nameplate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Compressor Model Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Unit Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Accessory/Options Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
General Data Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Pre-Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Inspection Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Unit Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Installation Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Unit Dimensions/Weights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Partial Heat Recovery - Water Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Weights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Installation - Mechanical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Location Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Sound Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Foundation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Rigging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Unit Isolation and Leveling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Mounting Point Locations and Weights . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Evaporator Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Drainage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Evaporator Piping Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Water Strainer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Flow Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Freeze Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Low Evap Refrigerant Cutout/Percent Glycol Recommendations . . . . . .
37
37
38
38
41
42
Partial Heat Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Installation - Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
General Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Electrical Data Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Installer-Supplied Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Power Supply Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Control Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
4
CG-SVX17C-EN
Heater Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Partial Heat Recovery Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Water Pump Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Interconnecting Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Chilled Water Flow (Pump) Interlock . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chilled Water Pump Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chilled Water Pump Control - Field Supplied Dual Pumps . . . . . . . . . . .
Alarm and Status Relay Outputs (Programmable Relays) . . . . . . . . . . . .
Low Voltage Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Emergency Stop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
External Auto/Stop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ice Building Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
External Chilled Water Setpoint (ECWS) Option . . . . . . . . . . . . . . . . . . .
External Demand Limit Setpoint (EDLS) Option . . . . . . . . . . . . . . . . . . . .
ECLS and EDLS Analog Input Signal Wiring Details: . . . . . . . . . . . . . . . .
Chilled Water Reset (CWR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
59
59
60
61
62
62
62
63
64
64
65
66
Communications Interface options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Tracer Communications Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
LonTalk Communications Interface for Chillers (LCI-C) . . . . . . . . . . . . . . 69
CGAM Operating Principles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Refrigerant Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Oil System Operation (CGAM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Controls Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
DynaView Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Display Screens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Auto, Stop/Immediate Stop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Diagnostic Annunciation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Manual Override Exists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Main Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Chiller Operating Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Active Chilled Water Setpoint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other Active Setpoints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Password-Protected Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
85
85
86
86
Settings Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Local Time of Day Schedule Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Lockout Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Reports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Power Up and Self Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
TechView . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Software Download . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Unit View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
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5
Diagnostics View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuration View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Software View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Binding View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
111
112
115
116
Pre-Start Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Unit Voltage Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Unit Voltage Imbalance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Unit Voltage Phasing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Water System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Flow Rates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Pressure Drop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Start Up Checklist
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Unit Start-Up Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Sequence of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Seasonal Unit Start-Up Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
Limit Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Unit Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Normal Shutdown to Stopped . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Seasonal Unit Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Periodic Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Weekly Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Monthly Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Annual Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
132
132
133
134
Compressor Service Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
Compressor Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Fill, Removal and Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Compressor Oil Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Compressor Operational Pump Down . . . . . . . . . . . . . . . . . . . . . . . . . . .
Compressor Service Pump Down Procedure . . . . . . . . . . . . . . . . . . . . .
Oil Equalizer Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tandem Compressor Suction Restrictors . . . . . . . . . . . . . . . . . . . . . . . .
Compressor Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Refrigerant System Open Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mechanical Compressor Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Compressor Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Compressor Motor Megging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Compressor Current Imbalance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6
134
135
135
135
135
136
136
136
137
138
139
139
139
139
140
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Refrigerant Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
Compressor Electrical Terminal Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
Compressor Crankcase Heaters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
Condenser Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
Condenser Coil Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
Evaporator Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Evaporator Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Water Strainer Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
Explanatory Comments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
Main Processor Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
Sensor Failure Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
Communication Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
Main Processor- Boot Messages and Diagnostics . . . . . . . . . . . . . . . . . . . . 159
Unit Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
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Model Number Description
Overview
This manual covers the installation, operation and maintenance of the CGAM units.
Nameplates
The CGAM unit nameplates are applied to the exterior surface of the control panel door
for 20-70 Ton sizes. The 80-120 Ton sizes have a nameplate on a support beam to the right
side of the starter panel.
A compressor nameplate is located on each compressor.
Unit Nameplate
The unit nameplate provides the following information:
•
Unit model and size descriptor.
•
Unit serial number.
•
Identifies unit electrical requirements.
•
Lists correct operating charges of R-410A and refrigerant oil.
•
Lists unit design pressures.
•
Identifies installation, operation and maintenance and service data literature.
•
Lists drawing numbers for unit wiring diagrams.
Figure 1.
Unit Nameplate
SERIAL NUMBER
FOR OUTDOOR USE
MODEL NUMBER
RATED
VOLTAGE/HZ/PH
MIN CKT
AMPACITY (A)
MAX FUSE/
BREAKER (A)
RATED
VOLTAGE/HZ/PH
MIN CKT
AMPACITY (A)
MAX FUSE/
BREAKER (A)
VOLT UTILIZATION
RANGE
CKT 1
VOLT UTILIZATION
RANGE
RLA
LRA
COMPR
MTR 1A
COMPR
MTR 2A
COMPR
MTR 1B
COMPR
MTR 2B
COMPR
MTR 1C
COMPR
MTR 2C
QTY
WATTS
CKT 4 BUFFER
TANK HEATER
CKT 2
RLA
WATTS
CKT 3 FREEZE
PROTECTION
HEATERS
HP EA
LRA
REFRIGERANT
CHARGED
RFGT CHARGE
OIL CHARGE
CKT 1 (LBS)
CKT 1 (GAL)
CKT 2 (LBS)
CKT 2 (GAL)
TYPE/
NUMBER
FLA EA
FIXED SPEED
FAN MOTORS
2 SPEED
FAN MOTORS
DESIGN PRESSURES (PSI)
QTY
HP EA FLA EA VFD INPUT AMPS MTR VOLT
VFD
LOW
HIGH
CONTROLLED
SIDE
SIDE
FAN MOTORS
QTY
HP EA
FLA EA VFD INPUT AMPS
INSTALLATION, OPERATION
* PUMP
WIRING DIAGRAM BOOK
& MAINTENANCE MANUAL
MOTORS
* EXCLUSIVELY INTERLOCKED
MANUFACTURED UNDER ONE OR MORE OF THE FOLLOWING U.S. PATENTS/
CORRESPONDING FOREIGN PATENTS OWNED BY TRANE.
TRANE
8
5,056,594 5,067,560 5,123,256 5,138,844 5,231,846 5,276,630 5,419,146 5,632,154 5,809,794 5,950,443 6,049,299
6,085,532 6,266,964 6,276,152 6,666,042 6,917,857 7,020,156 7,088,346 7,158,121 7,202,858 7,385,593
MADE IN USA
X39003199010C
CG-SVX17C-EN
Model Number Description
Unit Model Number
Digit 1-4 Chiller Model
Digit 19 Insulation
CGAM Air-Cooled Scroll
Packaged Chiller
A
Digit 5-7 Unit Nominal Ton
020
026
030
035
039
040
045
050
052
060
070
080
090
100
110
120
20 Tons
26 Tons
30 Tons
35 Tons
39 Tons
40 Tons
45 Tons
50 Tons
52 Tons
60 Tons
70 Tons
80 Tons
90 Tons
100 Tons
110 Tons
120 Tons
Digit 20 Factory Charge
1
2
Full Factory Refrigerant
Charge (HFC-410A)
Nitrogen Charge
Digit 21 Evaporator
Application
A
B
C
Standard Cooling
(42 to 65°F/5.5 to 18°C)
Low Temperature
Processing
(lower than 42°F/5.5°C)
Ice-Making - hardwired
interface (20 to 65°F/-7 to
18°C)
Digit 8 Unit Voltage
Digit 22 Water Connection
A
B
D
E
F
G
Digit 23 Condenser Fin
Material
208 Volt 60 Hz 3 Phase
230 Volt 60 Hz 3 Phase
380 Volt 60 Hz 3 Phase
400 Volt 50 Hz 3 Phase
460 Volt 60 Hz 3 Phase
575 Volt 60 Hz 3 Phase
Digit 9 Manufacturing
Plant
2
Pueblo, USA
Digit 10-11Design Seq
A-Z
1
A
D
Grooved Pipe Connection
Lanced Aluminum Fins
Lanced Aluminum Fins w/
CompleteCoat™
Digit 24 Condenser Heat
Recovery
X
1
Factory/ABU Assigned
No Heat Recovery
Partial Heat Recovery w/
Fan Control
Digit 12 Unit Type
Digit 25 - Not Used
2
X
High Efficiency
Digit 13 Agency Listing
Digit 26 Starter Type
X
A
A
No Agency Listing
UL Listed to US and
Canadian Safety Standard
Digit 14 Pressure Vessel
Code
X
No Pressure Code
Digit 15 Unit Application
D
Wide Ambient (0 to 125F/18 to 52C)
Digit 16 Refrigerant
Isolation Valves
2
Refrigerant Isolation
Valves (Discharge Valve)
Digit 17 Seismically Rated
A
=Not Seismically Rated
Unit
Digit 18 Freeze Protection
(Factory-Installed Only)
1
CG-SVX17C-EN
B
Factory Insulation - All
Cold Parts
Insulation for High
Humidity/Low Evap Temp
With Freeze Protection
Across the Line Starter/
Digit 27 Incoming Power
Line Connection
1
2
Single Point Power
Connection
Dual Point Power
Connection
Digit 28 Power Line
Connection Type
A
C
D
Terminal Block Conn. For
Incoming Lines
Circuit Breaker
Circuit Breaker with High
Fault Rated Control Panel
Digit 30 Unit Operator
Interface
A
B
C
D
E
F
G
H
J
K
L
M
N
P
R
T
U
V
W
Y
Z
Dyna-View/English
Dyna-View/Spanish-Spain
Dyna-View/SpanishMexico
Dyna-View/French
Dyna-View/German
Dyna-View/Dutch
Dyna-View/Italian
Dyna-View/Japanese
Dyna-View/PortuguesePortugal
Dyna-View/PortugueseBrazil
Dyna-View/Korean
Dyna-View/Thai
Dyna-View/Simplified
Chinese
Dyna-View/Traditional
Chinese
Dyna-View/Russian
Dyna-View/Polish
Dyna-View/Czech
Dyna-View/Hungarian
Dyna-View/Greek
Dyna-View/Romanian
Dyna-View/Swedish
Digit 31 Remote Interface
(digital comm)
X
2
3
No Remote Digital
Communication
LonTalk/Tracer Summit
Interface
Time of Day Scheduling
Digit 32 Ext. Chilled/Hot
Water and Curr. Demand
Limit Setpoint
X
A
B
No Ext. Chilled Water
Setpoint
Ext Chilled Water and
Demand Limit Setpoint - 420mA
Ext Chilled Water and
Demand Limit Setpoint - 210Vdc
Digit 33 Percent Capacity
X
1
Without % Capacity
With % Capacity
Digit 34 Programmable
Relays
Digit 29 Enclosure Type
X
A
1
Digit 35 Pump Type
Water Tight (Per UL 1995
Standard)
X
7
8
No Programmable Relays
Programmable Relays
No Pumps and no
Contactors
Dual Standard Pump
Dual High Head Pump
9
Model Number Description
Digit 36 Pump Flow
Control
Digit 41 Sound Attenuator
Package
X
B
3
5
No Pump Flow Control
Pump Flow Controlled by
Variable Speed Drive
Digit 37 Buffer Tank
X
1
No Tank
With Tank
Digit 38 Short Circuit
Rating
A
B
Default A Short Circuit
Rating
High A Short Circuit Rating
Super Quiet
Comprehensive Acoustic
Package
Digit 42 Appearance
Options
X
A
B
No Appearance Options
Architectural Louvered
Panels
Half Louvers
Digit 43 Exterior Finish
1
Standard Paint
Digit 39 — Installation
Accessories
Digit 44 Label and
Literature Language
X
B
D
E
1
No Installation
Accessories
Elastomeric Isolators
Spanish and English
English
French and English
Digit 40 Water Strainer
Digit 45 - Not Used
A
X
With Water Strainer
Factory- Installed
Digit 46 Shipping Package
X
A
No Skid (Standard)
Unit Containerization
Package
Digit 47 Performance Test
Options
X
2
3
No Performance Test
1 Point Test with Report
Witness 1 Point Test with
Report
Digit 48 Flow Switch Set
Point
C
F
H
L
15
35
45
60
Digit 49 - Not Used
X
Digit 50 Specials
X
S
None
Special
Note: If a digit is not defined it may be held for future use.
Compressor Nameplate
The compressor nameplate provides the following information:
•
Compressor model number.
•
Compressor serial number.
•
Compressor electrical characteristics.
•
Utilization Range.
•
Recommended refrigerant.
Model Number Coding System
The model numbers for the unit and the compressors are comprised of numbers and
letter which represent features of the equipment.
Each position, or group of positions, in the number is used to represent a feature. For
example, Unit Voltage, contains the number “F”. From the chart, it can be seen that a “F”
in this position means that the unit voltage is 460/60/3.
10
CG-SVX17C-EN
Model Number Description
Figure 2.
CGAM Compressor Nameplate
Compressor Model Number
The compressor model number is located on the compressor nameplates.
Digit 1,2,3,4
Digit 8 – Voltage
CSHD - Light Commercial
CSHN - Commercial
J - 200-230/3/60
K - 460/3/60-400/3/50
F - 230/3/50
D - 575/3/60
X - 380/3/60
Digit 5,6,7 – Capacity- 60
Hz ARI Kbtu/Hr
(approximate)
125 - CSHD
161 - CSHD
184 - CSHN
250 - CSHN
315 - CSHN
374 - CSHN
CG-SVX17C-EN
Digit 9 – Unloading
(0 – no unloading)
Digit 10 – Design Sequence
Digit 11 – Protection
Module Voltage
0- Int Line Break- CDHD
A - 115 VAC
B - 230 VAC
H – 24 VAC
K- 115/230 VAC -CSHN
Digit 12 – Basic
Compressor Variation
M - Suction & Discharge Tube, oil
equalizer with seal nut,
Grade 32 POE oil
11
General Information
Unit Description
The CGAM units are scroll type, air-cooled, liquid chillers, designed for installation
outdoors. The 20-35 ton units have a single independent refrigerant circuit, with two
compressors per circuit. The 40 ton and larger units have 2 independent refrigerant
circuits, with two compressors per circuit. The CGAM units are packaged with an
evaporator and condenser.
Note: Each CGAM unit is a completely assembled, hermetic package that is
factory-piped, wired, leak-tested, dehydrated, charged and tested for
proper control operations prior to shipment. The chilled water inlet and
outlet openings are covered for shipment.
The CGAM series features Trane's exclusive Adaptive Control logic with CH530 controls.
It monitors the control variables that govern the operation of the chiller unit. Adaptive
Control logic can correct these variables, when necessary, to optimize operational
efficiencies, avoid chiller shutdown, and keep producing chilled water.
Each refrigerant circuit is provided with filter, sight glass, electronic expansion valve, and
charging valves on the CGAM.
The evaporator is a brazed plate heat exchanger which is equipped with a water drain and
vent connections in the water piping.The condenser is an air-cooled slit fin coil.
The condensers are available in three configurations depending on the tonnage of the
unit. Units may be referred to the size by the condenser configuration. The three
configurations are slant, V and W.
Figure 3.
12
CGAM Slant 20-35 Ton Configuration
CG-SVX17C-EN
General Information
CG-SVX17C-EN
Figure 4.
CGAM “V” 40-70 Ton Configuration
Figure 5.
CGAM “W” 80-120 Ton Configuration
13
General Information
Accessory/Options Information
Check all the accessories and loose parts which are shipped with the unit against the
original order. Included in these items will be water vessel drain plugs, rigging diagrams,
electrical diagrams, and service literature, which are placed inside the control panel and/
or starter panel for shipment. Also check for optional components, such as isolators.
The unit isolators and fan prop rod ship on brackets attached to the frame of the unit. The
location varies by unit tonnage. The following figures show the location of these ship
with items for the different sizes.
Figure 6.
Slant 20 -35 Ton - Ship with Location - Isolator and Prop Rod
Isolators
Prop Rod
14
CG-SVX17C-EN
General Information
Figure 7.
V 40-70 Ton - Ship with Location - Isolators and Prop Rod
Isolators
Figure 8.
W 80-120 Ton - Ship with Location - Isolators and Prop Rod
Prop Rod
CG-SVX17C-EN
Prop Rod
Isolators
15
General Information
General Data Tables
Table 1.
General Data – 60 Hz – I-P
Size
20
26
30
35
40
52
60
70
80
90
100
110
120
2
2
2
2
4
4
4
4
4
4
4
4
4
10+10
13+13
15+15
15+20
10+10
13+13
15+15
15+20
20+20
20+25
25+25
25+30
30+30
1.4
2.2
2.2
3.2
2.4
4.1
5.0
7.5
7.0
9.0
10.3
11.5
11.5
Compressor
Number
#
Tonnage/circuit¹
Evaporator
Water storage (gal)
Min. flow² (gpm)
24
30
34
40
46
59
68
80
92
103
116
126
136
Max. flow² (gpm)
69
89
100
117
136
176
201
238
275
307
346
375
407
2
2.5
2.5
2.5
3
3
3
3
4
4
4
4
4
Water connection (in)
Condenser
Quantity of coils
1
1
1
1
2
2
2
2
4
4
4
4
4
Coil length (in)
91
91
127
127
91
91
127
127
121
121
144
144
144
Coil height (in)
68
68
68
68
68
68
68
68
42
42
42
42
42
2
2
2
2
2
2
2
2
3
3
3
3
3
192
192
192
192
192
192
192
192
192
192
192
192
192
2
2
3
3
4
4
6
6
6
6
8
8
8
Number of rows
#
#
Fins per foot (fpf)
Fan
Quantity
#
Diameter (in)
Airflow per fan (cfm)
28.8
28.8
28.8
28.8
28.8
28.8
28.8
28.8
28.8
28.8
28.8
28.8
28.8
9413
9420
9168
9173
9413
9420
9168
9173
9470
9472
9094
9096
9098
Power per motor (kW)
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
Motor RPM (rpm)
840
840
840
840
840
840
840
840
840
840
840
840
840
(ft/
min)
6333
6333
6333
6333
6333
6333
6333
6333
6333
6333
6333
6333
6333
Refrig circuits
#
1
1
1
1
2
2
2
2
2
2
2
2
2
Capacity steps
%
23-4573-100
25-5075-100
Tip speed
General Unit
50-100 50-100 50-100 43-100
25-50- 25-50- 25-50- 21-43- 25-50- 22-44- 25-5075-100 75-100 75-100 71-100 75-100 72-100 75-100
Refrig charge/
(lbs)
circuit ¹
34
34
48
48
32
32
48
48
74
74
90
86
86
Oil charge/circuit¹ (gal)
1.7
1.7
3.5
3.7
1.7
1.7
3.5
3.7
3.8
4.0
4.1
4.3
4.4
0
0
0
0
0
0
0
0
0
0
0
0
0
Min ambient
Wide ambient (°F)
1. Data shown for circuit one only. The second circuits always matches.
2. Flow limits are for water only.
16
CG-SVX17C-EN
General Information
Table 2.
General Data – 60 Hz – SI
Size
20
26
30
35
40
52
60
70
80
90
100
110
120
Compressor
Number
#
Tonnage/circuit¹
2
2
2
2
4
4
4
4
4
4
4
4
4
10+10
13+13
15+15
15+20
10+10
13+13
15+15
15+20
20+20
20+25
25+25
25+30
30+30
43.5
Evaporator
Water storage
5.3
8.3
8.3
12.1
9.1
15.5
18.9
28.4
26.5
34.1
39.0
43.5
Min. flow² (l/s)
(l)
1.5
1.9
2.1
2.5
2.9
3.7
4.2
5.0
5.8
6.5
7.3
7.9
8.6
Max. flow² (l/s)
4.4
5.6
6.3
7.4
8.6
11.1
12.7
15.1
17.4
19.4
21.9
23.7
25.7
50.8
63.5
63.5
63.5
76.2
76.2
76.2
76.2
101.6
101.6
101.6
101.6
101.6
Water connection (mm)
Condenser
Qty of coils
1
1
1
1
2
2
2
2
4
4
4
4
4
Coil length (mm)
2311
2311
3226
3226
2311
2311
3226
3226
3073
3073
3658
3658
3658
Coil height (mm)
1727
1727
1727
1727
1727
1727
1727
1727
1067
1067
1067
1067
1067
Number of rows
#
#
Fins per foot (fpf)
2
2
2
2
2
2
2
2
3
3
3
3
3
192
192
192
192
192
192
192
192
192
192
192
192
192
Fan
Quantity/circuit¹
#
2
2
3
3
2
2
3
3
2
3
4
4
4
732
732
732
732
732
732
732
732
732
732
732
732
732
15993
16005
15577
15585
15993
16005
15577
15585
16090
16093
15451
15454
15458
Power per motor (kW)
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
Motor RPM (rpm)
840
840
840
840
840
840
840
840
840
840
840
840
840
Tip speed (m/s)
32
32
32
32
32
32
32
32
32
32
32
32
32
1
1
1
1
2
2
2
2
2
2
2
Diameter (mm)
Airflow per fan
(m³/
h)
General Unit
Refrig circuits
Capacity steps
#
%
Refrig charge/
(kg)
circuit¹
Oil charge /circuit¹
(l)
25-50- 25-50- 25-50- 21-43- 25-50- 22-44- 25-5050-100 50-100 50-100 43-100
75-100 75-100 75-100 71-100 75-100 72-100 75-100
2
2
23-4573-100
25-5075-100
15.4
15.4
21.8
21.8
14.5
14.5
21.8
21.8
33.6
33.6
40.9
39.0
39.0
6.4
6.4
13.2
14.0
6.4
6.4
13.2
14.0
14.4
15.1
15.5
16.3
16.7
-18
-18
-18
-18
-18
-18
-18
-18
-18
-18
-18
-18
-18
Min ambient
Wide ambient (°C)
1. Data shown for circuit one only. The second circuit always matches.
2. Flow limits are for water only.
CG-SVX17C-EN
17
General Information
Table 3.
General Data – 50 Hz – I-P
Size
20
26
30
35
40
52
60
70
80
90
100
110
120
Compressor
Number
#
Tonnage/circuit¹
2
2
2
2
4
4
4
4
4
4
4
4
4
10+10
13+13
15+15
15+20
10+10
13+13
15+15
15+20
20+20
20+25
25+25
25+30
30+30
11.5
Evaporator
Water storage
1.4
2.2
2.2
3.2
2.4
4.1
5.0
7.5
7.0
9.0
10.3
11.5
Min. flow² (gpm)
20
26
29
33
39
50
57
67
79
88
99
107
114
Max. flow² (gpm)
59
75
85
98
115
149
170
199
234
262
296
319
341
2
2.5
2.5
2.5
3
3
3
3
4
4
4
4
4
Water connection
(gal)
(in)
Condenser
Quantity of coils
#
1
1
1
1
2
2
2
2
4
4
4
4
4
Coil length
(in)
91
91
127
127
91
91
127
127
121
121
144
144
144
Coil height
(in)
68
68
68
68
68
68
68
68
42
42
42
42
42
Number of rows
Fins per foot
#
2
2
2
2
2
2
2
2
3
3
3
3
3
(fpf)
192
192
192
192
192
192
192
192
192
192
192
192
192
Fan
Quantity
#
2
2
3
3
4
4
6
6
6
6
8
8
8
Diameter
(in)
28.8
28.8
28.8
28.8
28.8
28.8
28.8
28.8
28.8
28.8
28.8
28.8
28.8
7796
7783
7587
7590
7795
7801
7587
7590
7827
7829
7503
7505
7506
Power/motor (kW)
Airflow/fan (cfm)
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
Motor RPM (rpm)
Tip speed
700
700
700
700
700
700
700
700
700
700
700
700
700
(ft/
min)
5278
5278
5278
5278
5278
5278
5278
5278
5278
5278
5278
5278
5278
#
1
1
1
1
2
2
2
2
2
2
2
2
2
General Unit
Refrig circuits
25-50- 25-50- 25-50- 21-43- 25-50- 22-44- 25-50- 23-45- 25-5050-100 50-100 50-100 43-100
75-100 75-100 75-100 71-100 75-100 72-100 75-100 73-100 75-100
Capacity steps
%
Refrig charge/
circuit¹
(lbs)
34
34
48
48
32
32
48
48
74
74
90
86
84
Oil charge/circuit¹
(gal)
1.7
1.7
3.5
3.7
1.7
1.7
3.5
3.7
3.8
4.0
4.1
4.3
4.4
(°F)
0
0
0
0
0
0
0
0
0
0
0
0
0
Min ambient
Wide ambient
1. Data shown for circuit one only. The second circuit always matches.
2. Flow limits are for water only.
18
CG-SVX17C-EN
General Information
Table 4.
General Data – 50 Hz – SI
Size
20
26
30
35
40
52
60
70
80
90
100
110
120
Compressor
Number
#
Tonnage/circuit¹
2
2
2
2
4
4
4
4
4
4
4
4
4
10+10
13+13
15+15
15+20
10+10
13+13
15+15
15+20
20+20
20+25
25+25
25+30
30+30
43.5
Evaporator
Water storage
5.3
8.3
8.3
12.1
9.1
15.5
18.9
28.4
26.5
34.1
39.0
43.5
Min. flow² (l/s)
(l)
1.2
1.6
1.8
2.1
2.4
3.1
3.6
4.2
4.9
5.5
6.2
6.7
7.2
Max. flow² (l/s)
3.7
4.8
5.4
6.2
7.3
9.4
10.8
12.6
14.8
16.5
18.7
20.2
21.6
50.8
63.5
63.5
63.5
76.2
76.2
76.2
76.2
101.6
101.6
101.6
101.6
101.6
Water connection (mm)
Condenser
Quantity of coils
1
1
1
1
2
2
2
2
4
4
4
4
4
Coil length (mm)
2311
2311
3226
3226
2311
2311
3226
3226
3073
3073
3658
3658
3658
Coil height (mm)
1727
1727
1727
1727
1727
1727
1727
1727
1067
1067
1067
1067
1067
Number of rows
#
#
Fins per foot (fpf)
2
2
2
2
2
2
2
2
3
3
3
3
3
192
192
192
192
192
192
192
192
192
192
192
192
192
Fan
Quantity
#
Diameter (mm)
Airflow/fan
(m³/
h)
Power/motor (kW)
2
2
3
3
4
4
6
6
6
6
8
8
8
732
732
732
732
732
732
732
732
732
732
732
732
732
13245
13223
12890
12895
13244
13254
12890
12895
13298
13302
12748
12751
12753
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
Motor RPM (rpm)
700
700
700
700
700
700
700
700
700
700
700
700
700
Tip speed (m/s)
26.8
26.8
26.8
26.8
26.8
26.8
26.8
26.8
26.8
26.8
26.8
26.8
26.8
1
1
1
1
2
2
2
2
2
2
2
2
2
General Unit
Refrig circuits
Capacity steps
#
%
Refrig charge/
(kg)
circuit¹
Oil charge/circuit ¹
(l)
25-50- 25-50- 25-50- 21-43- 25-50- 22-44- 25-50- 23-45- 25-5050-100 50-100 50-100 43-100
75-100 75-100 75-100 71-100 75-100 72-100 75-100 73-100 75-100
15.4
15.4
21.8
21.8
14.5
14.5
21.8
21.8
33.6
33.6
40.9
39.0
38.1
6.4
6.4
13.2
14.0
6.4
6.4
13.2
14.0
14.4
15.1
15.5
16.3
16.7
-18
-18
-18
-18
-18
-18
-18
-18
-18
-18
-18
-18
-18
Min ambient
Wide ambient (°C)
1. Data shown for circuit one only. The second circuit always matches.
2. Flow limits are for water only.
CG-SVX17C-EN
19
Pre-Installation
Inspection Checklist
When the unit is delivered, verify that it is the correct unit and that it is properly equipped.
Compare the information which appears on the unit nameplate with the ordering and
submittal information.
Inspect all exterior components for visible damage. Report any apparent damage or
material shortage to the carrier and make a “unit damage” notation on the carrier's
delivery receipt. Specify the extent and type of damage found and notify the appropriate
Trane Sales Office.
Do not proceed with installation of a damaged unit without sales office approval.
To protect against loss due to damage incurred in transit, complete the following checklist
upon receipt of the unit.
•
Inspect the individual pieces of the shipment before accepting the unit. Check for
obvious damage to the unit or packing material.
•
Inspect the unit for concealed damage as soon as possible after delivery and before
it is stored. Concealed damage must be reported within 15 days.
•
If concealed damage is discovered, stop unpacking the shipment. Do not remove
damaged material from the receiving location. Take photos of the damage, if
possible. The owner must provide reasonable evidence that the damage did not
occur after delivery.
•
Notify the carrier's terminal of the damage immediately, by phone and by mail.
Request an immediate, joint inspection of the damage with the carrier and the
consignee.
•
Notify the Trane sales representative and arrange for repair. Do not repair the unit,
however, until damage is inspected by the carrier's representative.
Unit Storage
If the chiller is to be stored in ambients of 32°F or less, evaporator should be blown out
to remove any liquid and refrigerant isolation valves should be closed.
If the chiller is to be stored for more than one month prior to installation, observe the
following precautions:
•
Do not remove the protective coverings from the electrical panel.
•
Store the chiller in a dry, vibration-free, secure area.
•
Units charged with refrigerant should not be stored where temperatures exceed
155°F.
•
At least every three months, attach a gauge and manually check the pressure in the
refrigerant circuit. If the refrigerant pressure is below 200 psig at 70 F (or 145 psig at
50 F), call a qualified service organization and the appropriate Trane sales office.
Note: Pressure will be approximately 20 psig if shipped with the optional nitrogen
charge.
20
CG-SVX17C-EN
Pre-Installation
Installation Requirements
A list of the contractor responsibilities typically associated with the unit installation process is
provided.
Type of
Requirement
Trane Supplied
Trane Installed
Trane Supplied
Field Installed
Field Supplied
Field Installed
Foundation
• Meet foundation requirements
Rigging
• Safety chains
• Clevis connectors
• Lifting beam
Isolation
• Elastomeric isolators
(optional)
• Elastomeric isolators (optional)
Electrical
• Circuit breakers
(optional)
• Unit mounted starter
•
•
•
•
•
•
•
•
•
Circuit breakers (optional)
Electrical connections to unit mounted starter
Wiring sizes per submittal and NEC
Terminal lugs
Ground connection(s)
BAS wiring (optional)
Control voltage wiring
Chilled water pump contactor and wiring including interlock
Option relays and wiring
Water piping
• Flow switch
• Water strainer
•
•
•
•
•
•
Taps for thermometers and gauges
Thermometers
Water flow pressure gauges
Isolation and balancing valves in water piping
Vents and drain
Pressure relief valves
Insulation
• Insulation
• High humidity
insulation (optional)
• Insulation
Water Piping
Connection
Components
• Grooved pipe
Other
Materials
• R-410A refrigerant (1
lb. maximum per
machine as needed)
• Dry nitrogen (20 psig
maximum per
machine as needed)
CG-SVX17C-EN
21
Unit Dimensions/Weights
Dimensions
Figure 9. CGAM 20 and 26 ton - no options
Fan
Control
panel
Chilled water
inlet
84.7 in
(2151 mm)
Compressor
Wire
connection
20.3 in (515 mm)
9.7 in (246 mm)
21.2 in (535 mm)
50.4 in
(1279 mm)
Chilled
water
outlet
92.7 in (2354 mm)
113.8 in (2890 mm)
16.9 in
(429 mm)
Water connections are 1.7 in (44 mm)
from the end.
Figure 10. CGAM 20 and 26 ton - service clearances and mounting locations
Mounting Locations
Service Clearance
23.6 in
(600 mm)
Distance from edge to
middle of mounting hole
1.5 in (38 mm)
Hole dia 0.56 in (15 mm)
Door
swing
47.2 in
(1199 mm)
Chilled water
connection side
Control
panel side
39.4 in
(1000 mm)
21in
47.2 in (1200 mm)
31.5 in (800 mm)
More clearance may be needed for airflow
depending on the installation.
22
(533 mm)
101.2 in (2570 mm)
Total of four mounting locations.
CG-SVX17C-EN
Unit Dimensions/Weights
Figure 11. CGAM 30 and 35 ton - no options
Fan
Control
panel
Chilled water
inlet
84.7 in
(2151 mm)
Compressor
Wire
connection
20.3 in (516 mm)
9.7 in (246 mm)
21.3 in (541 mm)
50.4 in
(1279 mm)
Chilled water 16.9 in
(429 mm)
outlet
128.4 in (3263 mm)
149.8 in (3804 mm)
The number of fans shown does not represent
the number of fans installed.
Water connections are 1.6 in (40 mm)
from unit end.
Figure 12. CGAM 30 and 35 ton - service clearances and mounting locations
Mounting Locations
Service Clearance
Distance from edge to
middle of mounting hole
The number of fans shown does not represent
the number of fans installed.
23.6 in
(600 mm)
1.5 in (38 mm)
Hole dia 0.56 in (15 mm)
Door
swing
47.2 in
(1199 mm)
Chilled water
connection side
Control
panel side
39.4 in
(1000 mm)
21.9 in
47.2 in (1200 mm)
31.5 in (800 mm)
More clearance may be needed for airflow
depending on the installation.
CG-SVX17C-EN
(556 mm)
132.2 in (3358 mm)
Total of four mounting locations.
23
Unit Dimensions/Weights
Figure 13. CGAM 40 and 52 ton- no options
Wire
Control panel
Fan
connection
Compressor
Chilled water
inlet
84.8 in
(2155 mm)
Chilled water
outlet
25.8 in
(656 mm)
7.9 in
(200 mm)
23.8 in (603 mm)
88.4 in
(2245 mm)
89.9 in (2282 mm)
113.8 in (2890 mm)
14.4 in
(367 mm)
Water connections are even with unit end.
Figure 14. CGAM 40 and 52 ton- service clearances and mounting locations
Mounting Locations
Service Clearance
Distance from edge to
middle of mounting hole
1.5 in (38 mm)
Hole dia 0.56 in (15 mm)
39.4 in (1000 mm)
85.4 in
(2164 mm)
Door
swing
Chilled water
connection side
Control
panel side
39.4 in (1000 mm)
47.2 in (1200 mm)
31.5 in
(800 mm)
More clearance may be needed for airflow
depending on the installation.
24
19.4 in (493 mm)
94 in (2388 mm)
Total of four mounting locations.
CG-SVX17C-EN
Unit Dimensions/Weights
Figure 15. CGAM 60 and 70 ton - no options
Fan
Wire
connection
Control panel
Compressor
Chilled water
inlet
84.8 in
(2155 mm)
Chilled water
outlet
31.1 in
(790 mm)
7.9 in
23.8 in
(603 mm)
125.8 in (3196 mm)
88.4 in
(2245 mm)
(199 mm)
149.8 in (3804 mm)
14.4 in
(367 mm)
The number of fans shown does not represent
the number of fans installed.
Water connections are even with unit end.
Figure 16. CGAM 60 and 70 ton - service clearances and mounting locations
Mounting Locations
Service Clearance
Distance from edge to
middle of mounting hole
The number of fans shown does not represent
the number of fans installed.
1.5 in (38 mm)
Hole dia 0.56 in (15 mm)
39.4 in (1000 mm)
85.4 in
(2169 mm)
Door
swing
Chilled water
connection side
Control
panel side
39.4 in (1000 mm)
47.2 in
19.4 in (493 mm)
(1200 mm)
31.5 in (800 mm)
79.7 in (2024 mm)
129.8 in (3297 mm)
More clearance may be needed for airflow
depending on the installation.
CG-SVX17C-EN
Total of six mounting locations.
25
Unit Dimensions/Weights
Figure 17. CGAM 80 and 90 ton - no options
Fan
Compressor
Chilled water
inlet
92.6 in
(2352 mm)
Control
panel
Chilled water
outlet
Wire
connection
31.1 in (790 mm)
88.9 in
(2257 mm)
29.6 in
(751 mm)
7.9 in (200 mm)
89.2 in (2265 mm)
11.5 in
(292 mm)
143.1 in (3634 mm)
Water connections are 5.5 in (139 mm)
from unit end.
Figure 18. CGAM 80 and 90 ton - service clearances and mounting locations
Mounting Locations
Service Clearance
Distance from edge to
middle of mounting hole
Hole dia 0.56 in (15 mm)
1.5 in (38 mm)
39.4 in (1000 mm)
85.9 in
(2182 mm)
Door
swing
Chilled water
connection side
Control
panel side
39.4 in (1000 mm)
(767 mm)
30.2 in
83.7 in (2126 mm)
47.2 in
(1200 mm)
More clearance may be need for airflow
depending on the installation.
26
39.4 in (1000 mm)
123.9 in (3147 mm)
Total of six mounting location.
CG-SVX17C-EN
Unit Dimensions/Weights
Figure 19. CGAM 100, 110 and 120 ton- no options
Fan
Compressor
Chilled water
inlet
92.5 in
(2349 mm)
Control
panel
Chilled water
outlet
Wire
connection
31.1 in
(790 mm)
88.9 in
(2257 mm)
29.6 in (751 mm)
11.5 in
(292 mm)
111.7 in (2837 mm)
7.9 in
(199 mm)
165.9 in (4214 mm)
Water connections are 5.4 in (139 mm)
from unit end.
The number of fans shown does not represent the
number of fans installed.
Figure 20. CGAM 100, 110 and 120 ton- service clearances and mounting locations
Mounting Locations
Service Clearance
The number of fans shown does not represent the
Distance from edge to
middle of mounting hole
Hole dia 0.56 in (15 mm)
1.5 in (38 mm)
number of fans installed.
39.4 in (1000 mm)
85.9 in
(2181 mm)
Door
swing
Chilled water
connection side
Control
panel side
39.4 in (1000 mm)
(767 mm)
30.2 in
89.2 in (2266 mm)
47.2 in
(1200 mm)
39.4 in (1000 mm)
More clearance may be needed for airflow
depending on the installation.
CG-SVX17C-EN
146.9 in (3731 mm)
Total of six mounting locations.
27
Unit Dimensions/Weights
Partial Heat Recovery - Water Connections
Figure 21. Sizes 20 - 35 ton - Partial Heat Recovery - Water Connections
20 and 26 Ton
30 and 35 Ton
15.2 in (385 mm)
7.2 in (182 mm)
Heating
outlet
Heating
inlet
70.3 in (1784 mm)
15.2 in (385 mm)
7.2 in (182 mm)
Heating
outlet
Heating
inlet
67.4 in (1712 mm)
Partial heat recovery connections are even with the unit edge.
The number of fans shown does not represent the number of fans installed.
Figure 22. Sizes 40-70 ton - Partial Heat Recovery - Water Connections
40 and 52 Ton
60 and 70 Ton
Heating
outlet Heating
inlet
Heating
outlet
55.2 in
(1401 mm)
54.8 in
(1392 mm)
45.6 in
(1158 m
45.3 in
(1149 mm
44.2 in
(1123 m
Heating
inlet
44.1 in
(1120 mm
Partial heat recovery connections are even with the unit edge.
The number of fans shown does not represent the number of fans installed.
28
CG-SVX17C-EN
Weights
Weights
Table 5.
Weights - 60 Hz
Tons
Shipping Weight
Operating Weight
pounds
kilograms
pounds
kilograms
20
1967
892
2030
921
26
1995
905
2060
934
30
2561
1162
2629
1192
35
2580
1170
2654
1204
40
3507
1591
3578
1623
52
3584
1626
3666
1663
60
4640
2105
4730
2145
70
4656
2112
4751
2155
80
5278
2394
5384
2442
90
5637
2557
5746
2606
100
6283
2850
6401
2903
110
6328
2870
6461
2931
120
6328
2870
6461
2931
1. Weights based on aluminum fins.
2. Weights do not include louvers, partial heat recovery, etc.
3. All weights ±5%.
Table 6.
Weights - 50 Hz
Tons
Shipping Weight
Operating Weight
pounds
kilograms
pounds
kilograms
20
1893
859
1955
887
26
1920
871
1985
900
30
2363
1072
2431
1103
35
2481
1125
2554
1158
40
3357
1523
3428
1555
52
3433
1557
3515
1594
60
4301
1951
4391
1992
70
4458
2022
4554
2066
80
5028
2281
5134
2329
90
5386
2443
5495
2492
100
5834
2646
5953
2700
110
6077
2756
6210
2817
120
6077
2756
6210
2817
1. Weights based on aluminum fins.
2. Weights do not include louvers, partial heat recovery, etc.
3. All weights ±5%.
CG-SVX17C-EN
29
Installation - Mechanical
Location Requirements
Sound Considerations
•
Refer to Trane Engineering Bulletin Chiller Sound Ratings and Installation Guide CGPRB010-EN for sound consideration applications.
•
Locate the unit away from sound-sensitive areas.
•
Install the optional elastomeric isolators under the unit. Refer to “Unit Isolation.”
•
Chilled water piping should not be supported by chiller frame.
•
Install rubber vibration isolators in all water piping.
•
Seal all wall penetrations.
Note: Consult an acoustical engineer for critical applications.
Foundation
Provide rigid, non-warping mounting pads or a concrete foundation of sufficient strength
and mass to support the applicable operating weight (i.e., including completed piping,
and full operating charges of refrigerant, oil and water). Refer to the chapter on “Unit
Dimensions/Weights” for unit operating weights. Once in place, the unit must be level
within 1/4” (6.4 mm) over its length and width. The Trane Company is not responsible for
equipment problems resulting from an improperly designed or constructed foundation.
Clearances
Provide enough space around the unit to allow the installation and maintenance
personnel unrestricted access to all service points. Refer to submittal drawings for the
unit dimensions, to provide sufficient clearance for the opening of control panel doors
and unit service. Refer to the chapter on “Unit Dimensions/Weights” for minimum
clearances. In all cases, local codes which require additional clearances will take
precedence over these recommendations.
Rigging
Refer to Unit Dimensions/Weights section for typical unit lifting weights. Refer to the
rigging label attached to the unit for further details.
Lifting Procedure
Attach chains or cables to lifting beam, as shown in the following figures. Lifting beam
crossbars MUST be positioned so lifting cables do not contact the sides of the unit. Adjust
as necessary for even level lift.
30
CG-SVX17C-EN
Installation - Mechanical
Figure 23. CGAM Slant 20-35 Ton Rigging
Figure 24. CGAM V 40-70 Ton Rigging
Z
X
CG-SVX17C-EN
Y
31
Installation - Mechanical
Figure 25. CGAM W 80-120 Ton Rigging
Z
Y
X
Table 7. CGAM Center of Gravity (in) - 60 Hz
32
Unit
X
Y
Z
20 ton
48
24
37
26 ton
49
24
37
30 ton
57
22
37
35 ton
59
22
36
40 ton
46
45
33
52 ton
48
46
32
60 ton
58
45
36
70 ton
60
45
36
80 ton
59
44
35
90 ton
58
44
36
100 ton
71
47
38
110 ton
72
47
38
120 ton
72
47
38
CG-SVX17C-EN
Installation - Mechanical
Table 8. CGAM Center of Gravity (in) - 50 Hz
Unit
X
Y
Z
20 ton
48
25
38
26 ton
49
25
38
30 ton
57
23
36
35 ton
60
23
37
40 ton
47
45
33
52 ton
49
46
33
60 ton
59
45
36
70 ton
61
45
37
80 ton
60
44
36
90 ton
59
44
36
100 ton
72
47
37
110 ton
73
47
39
120 ton
73
47
39
Unit Isolation and Leveling
Mounting
Construct an isolated concrete pad for the unit or provide concrete footings at each of the
four unit mounting points. Mount the unit directly to the concrete pads or footings.
Level the unit using the base rail as a reference. The unit must be level within 1/4” over
the entire length. Use shims as necessary to level the unit.
Elastomeric Isolator Installation (optional)
Install the optional neoprene isolators at each mounting location. Isolators are identified
by part number and color.
1. Secure the isolators to the mounting surface, using the mounting slots in the isolator
base plate, as shown in Figure 26. Do not fully tighten the isolator mounting bolts at
this time.
2. Align the mounting holes in the base of the unit, with the threaded
positioning pins on the top of the isolators.
3. Lower the unit on to the isolators and secure the isolator to the unit with a nut.
Maximum isolator deflection should be approximately 1/4”.
4. Level the unit carefully. Refer to “Leveling”. Fully tighten the isolator mounting bolts.
CG-SVX17C-EN
33
Installation - Mechanical
Figure 26. CGAM Elastomeric Isolator
Max.
Load
eac h
(Lbs)
250
525
750
1100
1500
2250
3000
4000
EXT
57
58
59
60
61
62
63
64
Deflec tion
in
Inc hes
Fig
0.50
2
2.50 0.50 4.12 0.56 0.25 2.88 5.50
1.13
3.38 RDP3-WR
0.50
2
3.00 0.50 5.00 0.56 0.38 2.75 6.25
1.60+/-.25
4.63 RDP4-WR-
A
B NC TAP
B
C
D
E
H
L
M
W
Type
Color
BLACK
RED
GREEN
GRAY
BROWN
RED
GREEN
GRAY
L
C
D Dia 2 Holes
W
W
D
C
L
« B » Dia
A
H
H
A
RP/RDP
«M»
H
E
H
E
34
CG-SVX17C-EN
Installation - Mechanical
Mounting Point Locations and Weights
Control Panel
Control Panel
Figure 27. Mounting Point Locations
2
4
1
3
2
4
6
1
3
5
..
Table 9. Isolator Locations
Size
location1
location 2
location 3
loacation4
location 5
location 6
20-26 ton
RDP-3 Grey 60
RDP-3 Grey 60
RDP-3 Grey 60
RDP-3 Grey 60
-
-
30-35 ton
RDP-4 Black 61
RDP-4 Black 61
RDP-3 Grey 60
RDP-3 Grey 60
-
-
40-52 ton
RDP-4 Red 62
RDP-4 Red 62
RDP-4 Red 62
RDP-4 Red 62
-
-
60-70 ton
RDP-4 Red 62
RDP-4 Red 62
RDP-3 Gray 60
RDP-3 Gray 60
RDP-3 Gray 60
RDP-3 Gray 60
80-120 ton
RDP-4 Red 62
RDP-4 Red 62
RDP-4 Red 62
RDP-4 Red 62
RDP-3 Gray 60
RDP-3 Gray 60
Table 10. Point Weights (lbs) - 60 Hz
Size
location 1
location 2
location 3
location 4
location5
location 6
20 ton
667
666
350
349
-
-
23 ton
656
654
360
358
-
-
26 ton
667
658
371
366
-
-
30 ton
990
804
463
375
-
-
35 ton
981
792
487
397
-
-
40 ton
1102
1161
639
680
-
-
52 ton
1081
1161
686
742
-
-
60 ton
1106
1176
800
849
391
414
70 ton
1200
1113
765
704
334
641
80 ton
1337
1644
900
749
416
344
90 ton
1599
1654
820
846
411
423
CG-SVX17C-EN
35
Installation - Mechanical
Table 10. Point Weights (lbs) - 60 Hz
Size
location 1
location 2
location 3
location 4
location5
location 6
100 ton
1386
1775
853
1042
738
615
110 ton
1378
1785
856
1062
750
638
120 ton
1378
1785
856
1062
750
638
Table 11. Point Weights (lbs) - 50 Hz
Size
location 1
location 2
location 3
location 4
location5
location 6
20 ton
623
648
337
349
-
-
26 ton
623
640
358
366
-
-
30 ton
899
758
422
355
-
-
35 ton
920
766
472
399
-
-
40 ton
952
1179
714
587
-
-
52 ton
933
1177
759
650
-
-
60 ton
890
1154
848
767
388
349
70 ton
980
1125
859
667
361
567
80 ton
1348
1389
828
856
353
366
90 ton
1493
1548
799
826
412
424
100 ton
1241
1757
793
763
718
688
110 ton
1286
1677
823
1034
748
649
120 ton
1286
1677
823
1034
748
649
Evaporator Piping
Evaporator water connections are grooved.
Thoroughly flush all water piping to the CGAM unit before making the final piping
connections to the unit.
Components and layout will vary slightly, depending on the location of connections and
the water source.
CAUTION
Equipment Damage!
If using an acidic commercial flushing solution, construct a temporary bypass around
the unit to prevent damage to internal components of the evaporator and the pump.
36
CG-SVX17C-EN
Installation - Mechanical
CAUTION
Proper Water Treatment!
The use of untreated or improperly treated water in a Chiller may result in scaling,
erosion, corrosion, algae or slime. It is recommended that the services of a qualified
water treatment specialist be engaged to determine what water treatment, if any, is
required. Trane assumes no responsibility for equipment failures which result from
untreated or improperly treated water, or saline or brackish water.
Drainage
Locate the unit near a large capacity drain for water vessel drain-down during shutdown
or repair. Evaporators are provided with drain connections. Refer to “Water Piping.” All
local and national codes apply.
A vent is provided on the top of the evaporator at the chilled water inlet. Be sure to provide
additional vents at high points in the piping to bleed air from the chilled water system.
Install necessary pressure gauges to monitor the entering and leaving chilled water
pressures.
Provide shutoff valves in lines to the gauges to isolate them from the system when they
are not in use. Use rubber vibration eliminators to prevent vibration transmission
through the water lines.
If desired, install thermometers in the lines to monitor entering and leaving water
temperatures. Install a balancing valve in the leaving water line to control water flow
balance. Install shutoff valves on both the entering and leaving water lines so that the
evaporator can be isolated for service.
Evaporator Piping Components
Piping components include all devices and controls used to provide proper water system
operation and unit operating safety. These components are listed below.
Entering Chilled Water Piping
CG-SVX17C-EN
•
Air vents (to bleed air from system)
•
Water pressure gauges with shutoff valves
•
Vibration eliminators
•
Shutoff (isolation) valves
•
Thermometers (if desired)
•
Relief valve
37
Installation - Mechanical
Leaving Chilled Water Piping
•
Air vents (to bleed air from system)
•
Water pressure gauges with shutoff valves
•
Vibration eliminators
•
Shutoff (isolation) valves
•
Thermometers (if desired)
•
Balancing valve
NOTICE
Water Damage!
Standard pressure is 72.5 Psig for all factory installed components on the suction side
of water pump. Standard pressure of components on the discharge side of water
pump is 145 Psig. You MUST drain the system FIRST before releasing the pressure.
Failure to do so could result in water spray which could cause equipment and/or
property damage.
Water Strainer
The water strainer is factory-installed with taps for the pressure gauges on the inlet and
outlet.
Install pressure gauges in order to measure differential pressure across the filter. This will
help to determine when it is necessary to clean the water strainer.
Flow Switch
The flow switch is factory-installed and programmed based on the operating conditions
submitted with the order. The leaving evaporator temperature, fluid type and fluid
concentration affect the selected flow switch. If the operating conditions on the job site
change, the flow switch may need to be replaced.
38
CG-SVX17C-EN
CG-SVX17C-EN
1
10
100
10
) /2 : * 3 0 100
7RQ8QLWV+]
7RWDO8QLW3UHVVXUH'URSV
1000
Installation - Mechanical
Figure 28. Total Unit Pressure Drop Curves (60Hz)
39
3 5 ( 6 6 8 5 ( ' 5 2 3 ) WR I+ 2 40
1
10
100
10
) / 2 : * 3 0 100
7RQ8QLWV+]
7RWDO8QLW3UHVVXUH'URSV
1000
Installation - Mechanical
Figure 29. Total Unit Pressure Drop Curves (50 Hz)
CG-SVX17C-EN
3 5 ( 6 6 8 5 ( ' 5 2 3 ) WRI+ 2 Installation - Mechanical
Freeze Protection
Depending on the ambient temperature the unit may be exposed to there are up to four
different options for freeze protection. They are listed in order of highest ambient (least
freeze protection) to lowest ambient (most freeze protection).
1. Water pump (for protection with ambient temperatures down to 0°F)
a. CH530 controller can start the pump when the ambient temperatures drops to
prevent freezing. For this option the pump must to be controlled by the CGAM unit
and this function must be validated.
b. Water circuit valves need to stay open at all times.
OR
2. Heaters (for protection with ambient temperatures down to -20°F)
a. Heaters are factory-installed on the evaporator and water piping and will protect
them from freezing in ambient temperatures down to -20°F (-29°C).
b. Install heat tape on all water piping, pumps, and other components that may be
damaged if exposed to freezing temperatures. Heat tape must be designed for low
ambient temperature applications. Heat tape selection should be based on the
lowest expected ambient temperature.
OR
3. Freeze inhibitor with heaters
a. For protection with ambient temperatures down to -20°F:
i. Add a freeze inhibitor fluid to the chilled water system. The solution must be
strong enough to provide protection against ice formation at the lowest
anticipated ambient temperature.
ii. Activate the heaters and heat tape on the unit.
b. For protection with ambient temperatures below -20°F:
i. Add a freeze inhibitor fluid sufficient for burst protection at the lowest
anticipated ambient temperature.
ii. Activate the heaters and heat tape on the unit.
Note: Use of a freeze inhibitor fluid reduces the cooling capacity of the unit and must
be considered in the design of the system specifications.
OR
4. Drain water circuit (for protection with ambients below -20°F)
a. Shut off the power supply to the unit and to all heaters.
b. Purge the water circuit.
c. Blow out the evaporator to ensure no liquid is left in the evaporator.
Note: By default the CH530 freeze protection control is enabled and will request the start
of the chilled water pump with ambient temperatures at or below freezing. If you
do NOT want the CH530 to start the pump when the ambient temperature drops
to freezing, disable this freeze protection control.
CG-SVX17C-EN
41
Installation - Mechanical
NOTICE
Equipment Damage!
All heaters have separate power from the unit. All heaters must be energized when the
unit is off (unless the water circuit is drained). In the event of power loss heaters will
not protect the evaporator from catastrophic damage. In order to provide freeze
protection in the event of a power loss you MUST drain the evaporator or use
sufficient freeze inhibitor in the evaporator.
Low Evap Refrigerant Cutout/Percent Glycol Recommendations
The table below shows the low evaporator temperature cutout for different glycol levels.
Additional glycol beyond the recommendations will adversely effect unit performance.
The unit efficiency will be reduced and the saturated evaporator temperature will be
reduced. For some operating conditions this effect can be significant.
If additional glycol is used, then use the actual percent glycol to establish the low
refrigerant cutout setpoint.
Table 12. Low Evap Refrigerant Temp Cutout and Low Water Temp Cutout
ETHYLENE GLYCOL
Low
Low
Refrig Water
Solution Temp Temp
Freeze Cutout Cutout
%
[F]
Glycol Point [F] [F]
PROPYLENE GLYCOL
Min Chilled Water
Set Point [F]
Number of
compressors
2
42
4
Low
Low
Refrig Water
Solution Temp Temp
Freeze Cutout Cutout
%
[F]
[F]
Glycol Point [F]
6
Min Chilled Water
Set Point [F]
Number of
compressors
2
4
6
0
32
22
35
42
42
42
0
32
22
35
42
42
42
1
31.6
21.6
34.6
41.6
39.1
38.2
1
31.6
21.6
34.6
41.6
39.1
38.2
2
31.0
21.0
34.0
41.0
38.5
37.6
2
31.0
21.0
34.0
41.0
38.5
37.6
3
30.3
20.3
33.3
40.3
37.8
37.0
3
30.4
20.4
33.4
40.3
37.8
37.0
4
29.7
19.7
32.7
39.7
37.2
36.3
4
29.9
19.9
32.9
39.7
37.2
36.3
5
29.0
19.0
32.0
39.0
36.5
35.7
5
29.3
19.3
32.3
39.0
36.5
35.7
6
28.3
18.3
31.3
38.3
35.8
35.0
6
28.7
18.7
31.7
38.3
35.8
35.0
7
27.6
17.6
30.6
37.6
35.1
34.3
7
28.1
18.1
31.1
37.6
35.1
34.3
8
26.9
16.9
29.9
36.9
34.4
33.6
8
27.6
17.6
30.6
36.9
34.4
33.6
9
26.2
16.2
29.2
36.2
33.7
32.9
9
27.0
17.0
30.0
36.2
33.7
32.9
10
25.5
15.5
28.5
35.5
33.0
32.1
10
26.4
16.4
29.4
35.5
33.0
32.1
11
24.7
14.7
27.7
34.7
32.2
31.4
11
25.7
15.7
28.7
34.7
32.2
31.4
12
23.9
13.9
26.9
33.9
31.4
30.6
12
25.1
15.1
28.1
33.9
31.4
30.6
13
23.1
13.1
26.1
33.1
30.6
29.8
13
24.4
14.4
27.4
33.1
30.6
29.8
14
22.3
12.3
25.3
32.3
29.8
29.0
14
23.8
13.8
26.8
32.3
29.8
29.0
15
21.5
11.5
24.5
31.5
29.0
28.1
15
23.1
13.1
26.1
31.5
29.0
28.1
16
20.6
10.6
23.6
30.6
28.1
27.2
16
22.4
12.4
25.4
30.6
28.1
27.2
17
19.7
9.7
22.7
29.7
27.2
26.3
17
21.6
11.6
24.6
29.7
27.2
26.3
18
18.7
8.7
21.7
28.7
26.2
25.4
18
20.9
10.9
23.9
28.7
26.2
25.4
19
17.8
7.8
20.8
27.8
25.3
24.5
19
20.1
10.1
23.1
27.8
25.3
24.5
CG-SVX17C-EN
Installation - Mechanical
Table 12. Low Evap Refrigerant Temp Cutout and Low Water Temp Cutout
ETHYLENE GLYCOL
Low
Low
Refrig Water
Solution Temp Temp
Freeze Cutout Cutout
%
[F]
Glycol Point [F] [F]
PROPYLENE GLYCOL
Min Chilled Water
Set Point [F]
Number of
compressors
2
4
6
Low
Low
Refrig Water
Solution Temp Temp
Freeze Cutout Cutout
%
[F]
[F]
Glycol Point [F]
Min Chilled Water
Set Point [F]
Number of
compressors
2
4
6
20
16.8
6.8
19.8
26.8
24.3
23.5
20
19.3
9.3
22.3
26.8
24.3
23.5
21
15.8
5.8
18.8
25.8
23.3
22.5
21
18.4
8.4
21.4
25.8
23.3
22.5
22
14.7
4.7
17.7
24.7
22.2
21.4
22
17.6
7.6
20.6
24.7
22.2
21.4
23
13.7
3.7
16.7
23.7
21.2
20.3
23
16.7
6.7
19.7
23.7
21.2
20.3
24
12.5
2.5
15.5
22.5
20.0
19.2
24
15.7
5.7
18.7
22.5
20.0
19.2
25
11.4
1.4
14.4
21.4
18.9
18.1
25
14.8
4.8
17.8
21.4
18.9
18.1
26
10.2
0.2
13.2
20.2
17.7
16.9
26
13.8
3.8
16.8
20.2
17.7
16.9
27
9.0
-1.0
12.0
19.0
16.5
15.7
27
12.7
2.7
15.7
19.0
16.5
15.7
28
7.7
-2.3
10.7
17.7
15.2
14.4
28
11.6
1.6
14.6
17.7
15.2
14.4
29
6.4
-3.6
9.4
16.4
13.9
13.1
29
10.5
0.5
13.5
16.4
13.9
13.1
30
5.1
-4.9
8.1
15.1
12.6
11.8
30
9.3
-0.7
12.3
15.1
12.6
11.8
31
3.7
-6.3
6.7
13.7
11.2
10.4
31
8.1
-1.9
11.1
13.7
11.2
10.4
32
2.3
-7.7
5.3
12.3
10.4
10.4
32
6.8
-3.2
9.8
12.3
10.4
10.4
33
0.8
-9.2
3.8
10.8
10.4
10.4
33
5.5
-4.5
8.5
10.8
10.4
10.4
34
-0.7
-10.7
2.3
10.4
10.4
10.4
34
4.1
-5.9
7.1
10.4
10.4
10.4
35
-2.3
-12.3
0.7
10.4
10.4
10.4
35
2.7
-7.3
5.7
10.4
10.4
10.4
36
-3.9
-13.9
-0.9
10.4
10.4
10.4
36
1.3
-8.7
4.3
10.4
10.4
10.4
37
-5.6
-15.6
-2.6
10.4
10.4
10.4
37
-0.3
-10.3
2.7
10.4
10.4
10.4
38
-7.3
-17.3
-4.3
10.4
10.4
10.4
38
-1.8
-11.8
1.2
10.4
10.4
10.4
39
-9.0
-19.0
-5.0
10.4
10.4
10.4
39
-3.5
-13.5
-0.5
10.4
10.4
10.4
40
-10.8
-19.0
-5.0
10.4
10.4
10.4
40
-5.2
-15.2
-2.2
10.4
10.4
10.4
41
-12.7
-19.0
-5.0
10.4
10.4
10.4
41
-6.9
-16.9
-3.9
10.4
10.4
10.4
42
-14.6
-19.0
-5.0
10.4
10.4
10.4
42
-8.8
-18.8
-5.0
10.4
10.4
10.4
43
-16.6
-19.0
-5.0
10.4
10.4
10.4
43
-10.7
-19.0
-5.0
10.4
10.4
10.4
44
-18.6
-19.0
-5.0
10.4
10.4
10.4
44
-12.6
-19.0
-5.0
10.4
10.4
10.4
45
-20.7
-19.0
-5.0
10.4
10.4
10.4
45
-14.6
-19.0
-5.0
10.4
10.4
10.4
46
-22.9
-19.0
-5.0
10.4
10.4
10.4
46
-16.7
-19.0
-5.0
10.4
10.4
10.4
47
-25.1
-19.0
-5.0
10.4
10.4
10.4
47
-18.9
-19.0
-5.0
10.4
10.4
10.4
48
-27.3
-19.0
-5.0
10.4
10.4
10.4
48
-21.1
-19.0
-5.0
10.4
10.4
10.4
49
-29.7
-19.0
-5.0
10.4
10.4
10.4
49
-23.4
-19.0
-5.0
10.4
10.4
10.4
50
-32.1
-19.0
-5.0
10.4
10.4
10.4
50
-25.8
-19.0
-5.0
10.4
10.4
10.4
51
-34.5
-19.0
-5.0
10.4
10.4
10.4
51
-28.3
-19.0
-5.0
10.4
10.4
10.4
52
-37.1
-19.0
-5.0
10.4
10.4
10.4
52
-30.8
-19.0
-5.0
10.4
10.4
10.4
53
-39.7
-19.0
-5.0
10.4
10.4
10.4
53
-33.4
-19.0
-5.0
10.4
10.4
10.4
54
-42.3
-19.0
-5.0
10.4
10.4
10.4
54
-36.1
-19.0
-5.0
10.4
10.4
10.4
55
-45.0
-19.0
-5.0
10.4
10.4
10.4
55
-38.9
-19.0
-5.0
10.4
10.4
10.4
CG-SVX17C-EN
43
Installation - Mechanical
Partial Heat Recovery
The partial heat recovery is comprised of an auxiliary heat exchanger installed in the
discharge line between the compressor and the air -cooled condenser. The heat
exchanger cools compressor discharge gas and rejects the energy to a separate water
loop for hot water applications. The chiller can simultaneously produce chilled and hot
water.
The heating capacity is driven by the cooling demand on the chiller, the condensing
temperature and the flow rate through the heat exchanger.
The partial heat recovery includes:
•
Brazed plate heat exchanger
•
Units 20-35 Tons have a single braze plate heat exchanger. Units 40-120 Tons have
two braze plate heat exchangers in parallel arrangement.
•
Piping between the heat exchanger(s)
•
Insulation of the heat exchanger(s) and water pipe
•
Two temperature sensors to read the inlet/outlet hot water temperature information
on the unit control display
•
Heater on partial heat recovery heat exchanger(s) and water pipe
•
Manual air vent
•
Drain pipe
Water circulating inside the heat recovery heat exchanger should never be used for
drinking water, it must be used through an indirect loop to heat or preheat hot water.
The partial heat recovery pump must run at least three minutes after the partial heat
recovery fan control is disabled. During the three minutes, water flow through the brazed
plate heat exchanger will gradually be reduced and the unit can be switched to
conventional cooling mode without partial heat recovery fan control.
NOTICE
If the partial heat recovery heat exchanger is drained the heater must be
turned off to avoid damaging the partial heater recovery heat exchanger.
The heater should only be on when the heat recovery heat exchanger
has water in it.
44
CG-SVX17C-EN
Installation - Mechanical
Partial Heat Recovery Piping
A field installed safety or relief valve on the water side is required with the partial heat
recovery to prevent risks resulting from a failure of the thermostat.
A 16 mesh strainer must be installed close to the partial heat recovery heat exchanger
entering water line to protect the heat exchanger.
The partial heat recovery water temperature should be controlled via an external devise
such as a 3-way valve or variable speed pump. In addition, a water tank and additional
heater is suggested in the partial heat recovery loop.
Insulate water lines and other portions of the heat recovery water loop to prevent heat
loss and potential injury due exposure to a hot surface.
For recommended partial heat recovery piping see below.
Figure 30. Partial Heat Recovery Piping Recommendations
CG-SVX17C-EN
45
Installation - Mechanical
Do not use untreated or improperly treated water in the heat recovery water loop since
it will cause inefficient operation and potential damage to the unit such as: reduced heat
transfer between water and refrigerant, increased water pressure drop and reduced
water flow.
CAUTION
Proper Water Treatment!
The use of untreated or improperly treated water in a Chiller may result in scaling,
erosion, corrosion, algae or slime. It is recommended that the services of a qualified
water treatment specialist be engaged to determine what water treatment, if any, is
required. Trane assumes no responsibility for equipment failures which result from
untreated or improperly treated water, or saline or brackish water.
Partial Heat Recovery Freeze Protection
The heat recovery condenser is insulated and a factory-installed heater is installed and
will protect the heat exchanger from freezing in ambient temperatures down to -20°F
(-29°C).
When the ambient temperature drops to approximately 39°F (3.9°C) the thermostat
energizes the heaters.
Note: The inlet and outlet piping should be protected against freezing by one of the
following methods:
•
Install heat tape on all field-installed water piping.
OR
•
46
Add freeze inhibit fluid to the partial heat recovery water loop.
CG-SVX17C-EN
Installation - Electrical
General Recommendations
All wiring must comply with local codes and the National Electric Code. Typical field
wiring diagrams are included at the end of the manual. Minimum circuit ampacities and
other unit electrical data are on the unit nameplate. See the unit order specifications for
actual electrical data. Specific electrical schematics and connection diagrams are
shipped with the unit.
WARNING
Hazardous Voltage!
Disconnect all electric power, including remote disconnects before servicing. Follow
proper lockout/tagout procedures to ensure the power can not be inadvertently
energized. Failure to disconnect power before servicing could result in death or serious
injury.
CAUTION
Use Copper Conductors Only!
Unit terminals are not designed to accept other types of conductors. Failure to use
copper conductors may result in equipment damage.
Important!
Do not allow conduit to interfere with other components, structural members or
equipment. Control voltage (115V) wiring in conduit must be separate from conduit
carrying low voltage (<30V) wiring. To prevent control malfunctions, do not run low
voltage wiring (<30V) in conduit with conductors carrying more than 30 volts.
CG-SVX17C-EN
47
Installation - Electrical
Electrical Data Tables
Table 13. Electrical Data - 60 Hz
Unit
Size
20
26
30
35
40
52
60
Rated
Power
Number
Circuits
Qty
Comp
Qty
Fans
Fan Motor
Power (kw)
Cond Fan
FLA
Compressor
RLA¹ ²
Compressor
LRA¹ ³
208/60/3
1
2
2
1
6.2
39.1-39.1
267-267
230/60/3
1
2
2
1
6.7
39.1-39.1
267-267
380/60/3
1
2
2
1
3.7
22.4-22.4
160-160
460/60/3
1
2
2
1
3.2
18.6-18.6
142-142
575/60/3
1
2
2
1
2.6
15.4-15.4
103-103
208/60/3
1
2
2
1
6.2
50.6-50.6
315-315
230/60/3
1
2
2
1
6.7
44.3-44.3
315-315
380/60/3
1
2
2
1
3.7
26.3-26.3
177-177
460/60/3
1
2
2
1
3.2
21.2-21.2
158-158
575/60/3
1
2
2
1
2.6
18.6-18.6
126-126
208208/60/3
1
2
3
1
6.2
53.0-53.0
485-485
230/60/3
1
2
3
1
6.7
50.4-50.4
485-485
380/60/3
1
2
3
1
3.7
31.2-31.2
210-210
460/60/3
1
2
3
1
3.2
25.8-25.8
160-160
575/60/3
1
2
3
1
2.6
20.6-20.6
135-135
208/60/3
1
2
3
1
6.2
53.0-73.9
485-485
230/60/3
1
2
3
1
6.7
50.4-67.3
485-485
380/60/3
1
2
3
1
3.7
31.2-39.9
210-260
460/60/3
1
2
3
1
3.2
25.8-33.0
160-215
575/60/3
1
2
3
1
2.6
20.6-26.4
135-175
208/60/3
2
4
4
1
6.2
39.1-39.1
278-278
230/60/3
2
4
4
1
6.7
39.1-39.1
278-278
380/60/3
2
4
4
1
3.7
22.4-22.4
177-177
460/60/3
2
4
4
1
3.2
18.6-18.6
130-130
575/60/3
2
4
4
1
2.6
15.4-15.4
104-104
208/60/3
2
4
4
1
6.2
50.6-50.6
338-338
230/60/3
2
4
4
1
6.7
44.3-44.3
338-338
380/60/3
2
4
4
1
3.7
26.3-26.3
196-196
460/60/3
2
4
4
1
3.2
21.2-21.2
158-158
575/60/3
2
4
4
1
2.6
18.6-18.6
126-126
208/60/3
2
4
6
1
6.2
53.0-53.0
485-485
230/60/3
2
4
6
1
6.7
50.4-50.4
485-485
380/60/3
2
4
6
1
3.7
31.2-31.2
210-210
460/60/3
2
4
6
1
3.2
25.8-25.8
160-160
575/60/3
2
4
6
1
2.6
20.6-20.6
135-135
1.
2.
3.
4.
5.
Data shown for circuit one. The second circuit is always the same.
RLA - Rated Load Amps - Rated in accordance with UL Standard 1995.
LRA - Locked Rotor Amps - Based on full winding starts.
Units have single point power connection as standard. Optional dual point power connections are available for 40-120 ton units.
Voltage Utilization Range: +/- 10% of rated voltage
Rated voltage (use range): 208/60/3 (187.2-228.8), 230/60/3(208-254), 380/60/3 (342-418), 460/60/3 (414-506), 575/60/3 (516-633)
6. One separate 120/60/1, 15 amp customer provided power connection is required to power the heaters.
48
CG-SVX17C-EN
Installation - Electrical
Table 13. Electrical Data - 60 Hz
Unit
Size
70
80
90
100
110
120
Rated
Power
Number
Circuits
Qty
Comp
Qty
Fans
Fan Motor
Power (kw)
Cond Fan
FLA
Compressor
RLA¹ ²
Compressor
LRA¹ ³
208/60/3
2
4
6
1
6.2
53.0-73.9
485-485
230/60/3
2
4
6
1
6.7
50.4-67.3
485-485
380/60/3
2
4
6
1
3.7
31.2-39.9
210-260
460/60/3
2
4
6
1
3.2
25.8-33.0
160-215
575/60/3
2
4
6
1
2.6
20.6-26.4
135-175
208/60/3
2
4
6
1
6.2
73.9-73.9
485-485
230/60/3
2
4
6
1
6.7
67.3-67.3
485-485
380/60/3
2
4
6
1
3.7
39.9-39.9
260-260
460/60/3
2
4
6
1
3.2
33.0-33.0
215-215
575/60/3
2
4
6
1
2.6
26.4-26.4
175-175
208/60/3
2
4
6
1
6.2
73.9-91.3
485-560
230/60/3
2
4
6
1
6.7
67.3-84.6
485-560
380/60/3
2
4
6
1
3.7
39.9-54.5
260-310
460/60/3
2
4
6
1
3.2
33.0-41.9
215-260
575/60/3
2
4
6
1
2.6
26.4-34.0
175-210
208/60/3
2
4
8
1
6.2
91.3-91.3
560-560
230/60/3
2
4
8
1
6.7
84.6-84.6
560-560
380/60/3
2
4
8
1
3.7
54.5-54.5
310-310
460/60/3
2
4
8
1
3.2
41.9-41.9
260-260
575/60/3
2
4
8
1
2.6
34.0-34.0
210-210
208/60/3
2
4
8
1
6.2
91.3-109.5
560-680
230/60/3
2
4
8
1
6.7
84.6-109.0
560-680
380/60/3
2
4
8
1
3.7
54.5-59.6
310-360
460/60/3
2
4
8
1
3.2
41.9-50.6
260-320
575/60/3
2
4
8
1
2.6
34.4-38.6
210-235
208/60/3
2
4
8
1
6.2
109.5-109.5
680-680
230/60/3
2
4
8
1
6.7
109.0-109.0
680-680
380/60/3
2
4
8
1
3.7
59.6-59.6
360-360
460/60/3
2
4
8
1
3.2
50.6-50.6
320-320
575/60/3
2
4
8
1
2.6
38.6-38.6
235-235
1.
2.
3.
4.
5.
Data shown for circuit one. The second circuit is always the same.
RLA - Rated Load Amps - Rated in accordance with UL Standard 1995.
LRA - Locked Rotor Amps - Based on full winding starts.
Units have single point power connection as standard. Optional dual point power connections are available for 40-120 ton units.
Voltage Utilization Range: +/- 10% of rated voltage
Rated voltage (use range): 208/60/3 (187.2-228.8), 230/60/3(208-254), 380/60/3 (342-418), 460/60/3 (414-506), 575/60/3 (516-633)
6. One separate 120/60/1, 15 amp customer provided power connection is required to power the heaters.
CG-SVX17C-EN
49
Installation - Electrical
Table 14. Electrical Data - 60 Hz - Unit Wiring - MCA/MOPD
Dual Point Power
Unit
Size
20
26
30
35
40
52
60
1.
2.
3.
4.
5.
50
Rated
Single Point Power
Power
MCA¹
MOPD²
208/60/3
105.6
125
230/60/3
105.5
125
380/60/3
60.0
80
460/60/3
50.5
60
575/60/3
42.4
50
208/60/3
131.5
175
230/60/3
117.2
150
380/60/3
68.7
90
460/60/3
56.4
70
575/60/3
49.6
60
208/60/3
143.1
175
230/60/3
145.8
175
380/60/3
83.5
110
460/60/3
69.9
90
Circuit 1
MCA¹
Circuit 2
MOPD²
MCA¹
MOPD²
n/a
n/a
n/a
575/60/3
56.7
70
208/60/3
169.2
225
230/60/3
162.4
225
380/60/3
94.3
125
460/60/3
78.9
110
575/60/3
63.9
90
208/60/3
197.3
225
105.6
125
101.5
125
230/60/3
197.7
225
105.5
125
102.0
125
380/60/3
112.2
125
60.0
80
57.8
80
460/60/3
94.6
110
50.5
60
48.7
60
575/60/3
79.4
90
42.3
50
40.9
50
208/60/3
246.2
250
131.5
175
127.4
175
n/a
230/60/3
219.8
250
117.2
150
113.7
150
380/60/3
128.6
150
68.7
90
66.5
90
460/60/3
105.7
125
56.4
70
54.6
70
575/60/3
93.0
110
49.6
60
48.1
60
208/60/3
287.9
300
153.2
175
149.1
175
230/60/3
259.2
300
137.7
175
134.1
175
380/60/3
157.0
175
83.5
110
81.3
110
460/60/3
131.6
150
69.9
90
68.2
90
575/60/3
106.8
125
56.7
70
55.3
70
MCA - Minimum Circuit Ampacity-125 percent of largest compressor RLA plus 100 percent of all other loads per NEC 440-33 2008.
Max Fuse or HACR type breaker or MOPD -225 percent of the largest compressor RLA plus all other loads per NEC 440-22 2008.
Data shown for circuit one. The second circuit is always the same.
Local codes may take precedence.
n/a - not available
CG-SVX17C-EN
Installation - Electrical
Table 14. Electrical Data - 60 Hz - Unit Wiring - MCA/MOPD
Dual Point Power
Unit
Size
70
80
90
100
110
120
1.
2.
3.
4.
5.
Rated
Single Point Power
Circuit 1
Circuit 2
Power
MCA¹
MOPD²
MCA¹
MOPD²
MCA¹
MOPD²
208/60/3
354.5
400
190.2
225
186.1
225
230/60/3
317.2
350
169.9
225
166.4
200
380/60/3
176.5
200
94.3
125
92.2
125
460/60/3
147.8
175
78.9
110
77.2
110
575/60/3
119.8
125
63.9
90
62.5
80
208/60/3
357.6
400
190.1
250
186.0
250
230/60/3
331.0
350
175.7
225
172.1
225
380/60/3
193.9
225
103.0
125
100.9
125
460/60/3
162.2
175
86.1
110
84.4
110
575/60/3
131.4
150
69.7
90
68.3
90
208/60/3
396.7
450
211.8
300
207.7
250
230/60/3
369.9
450
197.3
250
193.8
250
380/60/3
226.8
250
121.3
175
119.1
150
460/60/3
182.3
200
97.3
125
95.5
125
575/60/3
148.5
175
79.2
110
77.8
110
208/60/3
443.9
500
235.4
300
231.3
300
230/60/3
417.9
500
221.3
300
217.8
300
380/60/3
263.3
300
139.6
175
137.4
175
460/60/3
206.5
225
109.4
150
107.6
125
575/60/3
168.9
200
89.4
110
88.0
110
208/60/3
484.9
500
258.2
350
254.1
350
230/60/3
472.8
500
251.8
350
248.3
350
380/60/3
274.8
300
145.9
200
143.8
200
460/60/3
226.1
250
120.3
150
118.5
150
575/60/3
179.3
200
95.2
125
93.8
125
208/60/3
521.3
600
276.4
350
272.3
350
230/60/3
521.6
600
276.2
350
272.7
350
380/60/3
285.1
300
151.1
200
148.9
200
460/60/3
243.6
250
129.0
175
127.2
175
575/60/3
188.5
225
99.8
125
98.4
125
MCA - Minimum Circuit Ampacity-125 percent of largest compressor RLA plus 100 percent of all other loads per NEC 440-33 2008.
Max Fuse or HACR type breaker or MOPD -225 percent of the largest compressor RLA plus all other loads per NEC 440-22 2008.
Data shown for circuit one. The second circuit is always the same.
Local codes may take precedence.
n/a - not available
CG-SVX17C-EN
51
Installation - Electrical
Table 15. Lug Range Size - 60 Hz - Standard Unit
Single Point Power
Unit
Size
20
26
30
35
40
52
60
1.
2.
3.
4.
5.
52
Dual Point Power
Rated
Power
Terminal
Blocks
Std Fault
Ckt Breaker¹
High Fault
Ckt Breaker¹
208/60/3
#6 - 350 MCM
#3 - 3/0
#3 - 3/0
230/60/3
#6 - 350 MCM
#3 - 3/0
#3 - 3/0
380/60/3
#6 - 350 MCM
#10 - 1/0
#10 - 1/0
460/60/3
#6 - 350 MCM
#10 - 1/0
#10 - 1/0
575/60/3
#6 - 350 MCM
#10 - 1/0
n/a
208/60/3
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
230/60/3
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
380/60/3
#6 - 350 MCM
#10 - 1/0
#10 - 1/0
460/60/3
#6 - 350 MCM
#10 - 1/0
#10 - 1/0
575/60/3
#6 - 350 MCM
#10 - 1/0
n/a
208/60/3
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
230/60/3
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
380/60/3
#6 - 350 MCM
#3 - 3/0
#3 - 3/0
460/60/3
#6 - 350 MCM
#10 - 1/0
#10 - 1/0
Terminal
Blocks
Std Fault
Ckt Breaker¹
High Fault
Ckt Breaker¹
n/a
n/a
n/a
575/60/3
#6 - 350 MCM
#10 - 1/0
n/a
208/60/3
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
230/60/3
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
380/60/3
#6 - 350 MCM
#3 - 3/0
#3 - 3/0
460/60/3
#6 - 350 MCM
#3 - 3/0
#3 - 3/0
575/60/3
#6 - 350 MCM
#10 - 1/0
n/a
208/60/3
#6 - 350 MCM
3/0 - 500 MCM²
3/0 - 500 MCM²
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
230/60/3
#6 - 350 MCM
3/0 - 500 MCM
3/0 - 500 MCM
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
380/60/3
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
460/60/3
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
#10 - 1/0
#10 - 1/0
575/60/3
#6 - 350 MCM
#6 - 350 MCM
n/a
#6 - 350 MCM
#10 - 1/0
n/a
208/60/3
#6 - 350 MCM
3/0 - 500 MCM²
3/0 - 500 MCM²
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
230/60/3
#6 - 350 MCM
3/0 - 500 MCM²
3/0 - 500 MCM²
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
380/60/3
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
460/60/3
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
575/60/3
#6 - 350 MCM
#6 - 350 MCM
n/a
#6 - 350 MCM
#10 - 1/0
n/a
208/60/3
#6 - 350 MCM
3/0 - 500 MCM²
3/0 - 500 MCM²
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
230/60/3
#6 - 350 MCM
3/0 - 500 MCM²
3/0 - 500 MCM²
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
380/60/3
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
460/60/3
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
575/60/3
#6 - 350 MCM
#6 - 350 MCM
n/a
#6 - 350 MCM
#6 - 350 MCM
n/a
n/a
Optional circuit breaker and high fault circuit breaker.
Will accept two conduits per phase in this size.
Copper wire only, based on nameplate Minimum Circuit Ampacity (MCA).
Data shown for circuit one. The second circuit is always the same.
n/a - not available
CG-SVX17C-EN
Installation - Electrical
Table 15. Lug Range Size - 60 Hz - Standard Unit
Single Point Power
Unit
Size
70
80
90
100
110
120
1.
2.
3.
4.
5.
Dual Point Power
Rated
Power
Terminal
Blocks
Std Fault
Ckt Breaker¹
High Fault
Ckt Breaker¹
Terminal
Blocks
Std Fault
Ckt Breaker¹
High Fault
Ckt Breaker¹
208/60/3
#6 - 350 MCM
3/0 - 500 MCM²
3/0 - 500 MCM²
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
230/60/3
#6 - 350 MCM
3/0 - 500 MCM²
3/0 - 500 MCM²
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
380/60/3
#6 - 350 MCM
3/0 - 500 MCM²
3/0 - 500 MCM²
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
460/60/3
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
575/60/3
#6 - 350 MCM
#6 - 350 MCM
n/a
#6 - 350 MCM
#6 - 350 MCM
n/a
208/60/3
#4 - 500 MCM
3/0 - 500 MCM²
3/0 - 500 MCM²
#6 - 350 MCM
3/0 - 500 MCM
#6 - 350 MCM
230/60/3
#4 - 500 MCM
3/0 - 500 MCM²
3/0 - 500 MCM²
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
380/60/3
#6 - 350 MCM
3/0 - 500 MCM²
3/0 - 500 MCM²
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
460/60/3
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
575/60/3
#6 - 350 MCM
#6 - 350 MCM
n/a
#6 - 350 MCM
#6 - 350 MCM
n/a
208/60/3
#4 - 500 MCM
3/0 - 500 MCM²
3/0 - 500 MCM²
#6 - 350 MCM
3/0 - 500 MCM²
3/0 - 500 MCM²
230/60/3
#4 - 500 MCM
3/0 - 500 MCM²
3/0 - 500 MCM²
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
380/60/3
#6 - 350 MCM
3/0 - 500 MCM²
3/0 - 500 MCM²
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
460/60/3
#6 - 350 MCM
3/0 - 500 MCM²
3/0 - 500 MCM²
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
575/60/3
#6 - 350 MCM
#6 - 350 MCM
n/a
#6 - 350 MCM
#6 - 350 MCM
n/a
208/60/3
#4 - 500 MCM
3/0 - 500 MCM²
3/0 - 500 MCM²
#6 - 350 MCM
3/0 - 500 MCM²
3/0 - 500 MCM²
230/60/3
#4 - 500 MCM
3/0 - 500 MCM²
3/0 - 500 MCM²
#6 - 350 MCM
3/0 - 500 MCM²
3/0 - 500 MCM²
380/60/3
#6 - 350 MCM
3/0 - 500 MCM²
3/0 - 500 MCM²
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
460/60/3
#6 - 350 MCM
3/0 - 500 MCM²
3/0 - 500 MCM²
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
575/60/3
#6 - 350 MCM
3/0 - 500 MCM
n/a
#6 - 350 MCM
#6 - 350 MCM
n/a
208/60/3
#4 - 500 MCM
3/0 - 500 MCM²
3/0 - 500 MCM²
#6 - 350 MCM
3/0 - 500 MCM²
3/0 - 500 MCM²
230/60/3
#4 - 500 MCM
3/0 - 500 MCM²
3/0 - 500 MCM²
#6 - 350 MCM
3/0 - 500 MCM²
3/0 - 500 MCM²
380/60/3
#6 - 350 MCM
3/0 - 500 MCM²
3/0 - 500 MCM²
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
460/60/3
#6 - 350 MCM
3/0 - 500 MCM²
3/0 - 500 MCM²
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
575/60/3
#6 - 350 MCM
3/0 - 500 MCM²
n/a
#6 - 350 MCM
#6 - 350 MCM
n/a
208/60/3
#4 - 500 MCM
3/0 - 500 MCM²
3/0 - 500 MCM²
#6 - 350 MCM
3/0 - 500 MCM²
3/0 - 500 MCM²
230/60/3
#4 - 500 MCM
3/0 - 500 MCM²
3/0 - 500 MCM²
#6 - 350 MCM
3/0 - 500 MCM²
3/0 - 500 MCM²
380/60/3
#4 - 500 MCM
3/0 - 500 MCM²
3/0 - 500 MCM²
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
460/60/3
#6 - 350 MCM
3/0 - 500 MCM²
3/0 - 500 MCM²
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
575/60/3
#6 - 350 MCM
3/0 - 500 MCM²
n/a
#6 - 350 MCM
#6 - 350 MCM
n/a
Optional circuit breaker and high fault circuit breaker.
Will accept two conduits per phase in this size.
Copper wire only, based on nameplate Minimum Circuit Ampacity (MCA).
Data shown for circuit one. The second circuit is always the same.
n/a - not available
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Installation - Electrical
Table 16. Electrical Data - 50Hz
Unit
Size
Rated
Power
Number
Circuits
Qty
Comp
Qty
Fans
Fan Motor Cond Fan
Power (kW)
FLA
Compressor
RLA¹ ²
Compressor
LRA¹ ³
20
400/50/3
1
2
2
1
2.4
16.6-16.6
142-142
26
400/50/3
1
2
2
1
2.4
20.6-20.6-
158-158
30
400/50/3
1
2
3
1
2.4
26.7-26.7
160-160
35
400/50/3
1
2
3
1
2.4
26.7-33.2
160-215
40
400/50/3
2
4
4
1
2.4
16.6-16.6
130-130
52
400/50/3
2
4
4
1
2.4
20.6-20.6
158-158
60
400/50/3
2
4
6
1
2.4
26.7-26.7
160-160
70
400/50/3
2
4
6
1
2.4
26.7-33.2
160-215
80
400/50/3
2
4
6
1
2.4
33.2-33.2
175-175
90
400/50/3
2
4
6
1
2.4
33.2-42.5
175-210
100
400/50/3
2
4
8
1
2.4
42.5-42.5
210-210
110
400/50/3
2
4
8
1
2.4
42.5-46.9
210-235
120
400/50/3
2
4
8
1
2.4
46.9-46.9
235-235
1.
2.
3.
4.
5.
Data shown for circuit one. The second circuit is always the same.
RLA - Rated Load Amps - Rated in accordance with UL Standard 1995.
LRA - Locked Rotor Amps - Based on full winding starts.
Units have single point power connection as standard. Optional dual point power connections are available for 40-120 ton units.
Voltage Utilization Range:
Rated voltage (use range): 400/50/3 (360-440)
6. One separate 120/50/1, 15 amp customer provided power connection is required to power the heaters.
Table 17. Electrical Data - 50 Hz - Unit Wiring - MCA/MOPD
1.
2.
3.
4.
5.
54
Unit
Rated
Size
Power
MCA¹
Single Point Power
MOPD²
Dual Point Power
20
400/50/3
45.5
60
26
400/50/3
54.5
70
30
400/50/3
70.6
90
35
400/50/3
78.8
110
40
400/50/3
84.8
100
45.5
52
400/50/3
101.8
110
54.5
60
400/50/3
132.5
150
70
400/50/3
147.2
175
80
400/50/3
160.2
175
MCA¹
MOPD²
MCA¹
MOPD²
60
43.5
60
70
52.5
70
70.6
90
68.6
90
78.8
110
76.7
100
85.3
110
83.2
110
n/a
90
400/50/3
181.1
200
96.9
125
94.8
125
100
400/50/3
204.5
225
108.6
150
106.5
125
110
400/50/3
214.4
250
114.1
150
112.0
150
120
400/50/3
223.2
250
118.5
150
116.4
150
MCA - Minimum Circuit Ampacity-125 percent of largest compressor RLA plus 100 percent of all other loads per NEC 440-33 2008.
MOPD or Max Fuse or HACR type breaker-225 percent of the largest compressor RLA plus 100 percent of all other loads per NEC 440-22 2008.
Data shown for circuit one. The second circuit is always the same.
Local codes may take precedence.
n/a - means option not available with voltage.
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Installation - Electrical
Table 18. Lug Size Range - 50 Hz
Single Point Power
Dual Point Power
Unit
Size
Rated
Power
Terminal
Blocks
Std Fault
Ckt Breaker¹
High Fault
Ckt Breaker¹
20
400/50/3
#6 - 350 MCM
#10 - 1/0
#10 - 1/0
26
400/50/3
#6 - 350 MCM
#10 - 1/0
#10 - 1/0
30
400/50/3
#6 - 350 MCM
#10 - 1/0
#10 - 1/0
35
400/50/3
#6 - 350 MCM
#3 - 3/0
#3 - 3/0
40
400/50/3
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
#10 - 1/0
#10 - 1/0
52
400/50/3
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
60
400/50/3
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
70
400/50/3
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
80
400/50/3
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
90
400/50/3
#6 - 350 MCM
3/0 - 500 MCM²
3/0 - 500 MCM²
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
100
400/50/3
#6 - 350 MCM
3/0 - 500 MCM²
3/0 - 500 MCM²
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
110
400/50/3
#6 - 350 MCM
3/0 - 500 MCM²
3/0 - 500 MCM²
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
120
400/50/3
#6 - 350 MCM
3/0 - 500 MCM²
3/0 - 500 MCM²
#6 - 350 MCM
#6 - 350 MCM
#6 - 350 MCM
1.
2.
3.
4.
5.
Terminal
Blocks
Std Fault
Ckt Breaker¹
High Fault
Ckt Breaker¹
n/a
Optional circuit breaker and high fault circuit breaker.
Will accept two conduits per phase in this size.
Copper wire only, based on nameplate Minimum Circuit Ampacity (MCA).
Data shown for circuit one. The second circuit is always the same.
n/a - not available
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Installation - Electrical
Installer-Supplied Components
Customer wiring interface connections are shown in the electrical schematics and
connection diagrams that are shipped with the unit. The installer must provide the
following components if not ordered with the unit:
•
Power supply wiring (in conduit) for all field-wired connections.
•
All control (interconnecting) wiring (in conduit) for field supplied devices.
•
Circuit breakers.
Power Supply Wiring
WARNING
Ground Wire!
All field-installed wiring must be completed by qualified personnel. All field-installed
wiring must comply with NEC and applicable local codes. Failure to follow this
instruction could result in death or serious injuries.
All power supply wiring must be sized and selected accordingly by the project engineer
in accordance with NEC Table 310-16.
WARNING
Hazardous Voltage!
Disconnect all electric power, including remote disconnects before servicing. Follow
proper lockout/tagout procedures to ensure the power can not be inadvertently
energized. Failure to disconnect power before servicing could result in death or serious
injury.
All wiring must comply with local codes and the National Electrical Code. The installing
(or electrical) contractor must provide and install the system interconnecting wiring, as
well as the power supply wiring. It must be properly sized and equipped with the
appropriate fused disconnect switches.
The type and installation location(s) of the fused disconnects must comply with all
applicable codes.
CAUTION
Use Copper Conductors Only!
Unit terminals are not designed to accept other types of conductors. Failure to use
copper conductors may result in equipment damage.
Knock-outs for wiring are located on the bottom right side of the control panel.The wiring
is passed through these conduits and connected to the terminal blocks or HACR type
breakers. Refer to Figure 31.
To provide proper phasing of 3-phase input, make connections as shown in field wiring
diagrams and as stated on the WARNING label in the starter panel. For additional
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CG-SVX17C-EN
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information on proper phasing, refer to “Unit Voltage Phasing.” Proper equipment
ground must be provided to each ground connection in the panel (one for each customersupplied conductor per phase).
The high voltage field-provided connections are made through knockouts on the right
side of the panel. The low voltage connections are made through the left side of the panel
(Figure 31). Additional grounds may be required for each 115 volt power supply to the
unit. Green lugs are provided for 115V customer wiring.
Figure 31. Power Entrance
“V” Configuration 40-70 Ton
Low
Voltage
Power
“Slant” Configuration 20-35 Ton
Low
Voltage
Power
Incoming
Power
Incoming
Power
“W” Configuration 80-120 Ton
Low Voltage
Power
CG-SVX17C-EN
Incoming
Power
57
Installation - Electrical
Control Power Supply
The unit is equipped with a control power transformer; it is not necessary to provide
additional control power voltage to the unit. No other loads should be connected to the
control power transformer.
All units are factory-connected for appropriate labeled voltages.
CAUTION
Heat Tape!
Control panel main processor does not check for loss of power to the heat tape nor
does it verify thermostat operation. A qualified technician must verify power to the
heat tape and confirm operation of the heat tape thermostat to avoid catastrophic
damage to the evaporator or partial heat recovery heat exchanger.
Heater Power Supply
The evaporator shell is insulated from ambient air and protected from freezing
temperatures by a thermostatically-controlled immersion heater and strip heaters on the
piping. When ever the ambient temperature drops to approximately 37°F (2.8°C) the
thermostat energizes the heaters. The heaters will provide protection from ambient
temperatures down to -20°F (-29°C).
It is required to provide an independent power source (115V 60-Hz-20 amp, 50Hz-15 amp),
with a fused-disconnect to the heaters. The heaters are factory-wired back to the unit
control panel.
Note: If evaporator is drained, the heater must be turned off in order to avoid damaging
the evaporator. The heater should only be on when the evaporator has water in it.
Partial Heat Recovery Power Supply
The partial heat recover heat exchanger is insulated from ambient air and protected from
freezing temperatures by an immersion heater. When ever the ambient air temperature
drops to approximately 37°F (2.8°C) the thermostat energizes the heaters. The heaters
will provide protection from ambient temperatures down to -20°F (-29°C).
It is required to provide an independent power source (115V 60-Hz-20 amp, 50Hz-15 amp),
with a fused-disconnect to the heater. The heaters are factory-wired back to the unit
control panel.
Note: If partial heat recovery heat exchanger is drained, the heater must be turned off in
order to avoid damaging the partial heat recovery heat exchanger. The heater
should only be on when the heat recovery heat exchanger has water in it.
Water Pump Power Supply
Provide power supply wiring with disconnect for the chilled water pump(s).
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Installation - Electrical
Interconnecting Wiring
Chilled Water Flow (Pump) Interlock
All CGAM model chillers have a factory-installed flow switch. In addition, it is
recommended to use an additional field-supplied control voltage contact input through
an auxiliary contact to prove flow. Connect the auxiliary contact to 1A17. Refer to the field
wiring for details. The auxiliary contact can be a BAS signal, starter contactor auxiliary
or any signal which indicates the pump is running.
Chilled Water Pump Control
An evaporator water pump output relay closes when the chiller is given a signal to go into
the Auto mode of operation from any source. The contact is opened to turn off the pump
in the event of most machine level diagnostics to prevent the build up of pump heat.
The relay output from 1A9 is required to operate the Evaporator Water Pump (EWP)
contactor. Contacts should be compatible with 115/240 VAC control circuit. Normally, the
EWP relay follows the AUTO mode of the chiller. Whenever the chiller has no diagnostics
and is in the AUTO mode, regardless of where the auto command is coming from, the
normally open relay is energized. When the chiller exits the AUTO mode, the relay is
timed to open in an adjustable (using TechView) 0 to 30 minutes. The non-AUTO modes
in which the pump is stopped, include Reset, Stop, External Stop, Remote Display Stop,
Stopped by Tracer, Start Inhibited by Low Ambient Temp, and Ice Building complete.
NOTICE
Equipment damage!
If the microprocessor calls for a pump to start and water does not flow, the evaporator
may be damaged catastrophically. It is the responsibility of the installing contractor
and/or the customer to ensure that a pump will always be running when called upon
by the chiller controls.
Table 19. Pump Relay Operation
Chiller Mode
Auto
Ice Building
Tracer Override
Stop
Ice Complete
Diagnostics
Relay Operation
Instant close
Instant close
Close
Timed to Open
Instant Open
Instant Open
When going from Stop to Auto, the EWP relay is energized immediately. If evaporator
water flow is not established in 4 minutes and 15 seconds, the CH530 de-energizes the
EWP relay and generates a non-latching diagnostic. If flow returns (e.g. someone else is
controlling the pump), the diagnostic is cleared, the EWP relay is re-energized, and
normal control resumed.
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Installation - Electrical
If evaporator water flow is lost once it has been established, the EWP relay remains
energized and a non-latching diagnostic is generated. If flow returns, the diagnostic is
cleared and the chiller returns to normal operation.
NOTICE
Equipment damage!
Do NOT enable/disable the chiller by removing water flow or equipment damage can
occur.
In general, when there is either a non-latching or latching diagnostic, the EWP relay is
turned off as though there was a zero time delay. The relay continues to be energized
with:
A Low Chilled Water Temperature diagnostic (non-latching) unless also accompanied by
an Evap Leaving Water Temperature Sensor Diagnostic.
or
A Loss of Evaporator Water Flow diagnostic (non-latching) and the unit is in the AUTO
mode, after initially having proven evaporator water flow.
Note: If pump control is used for freeze protection then the pump MUST be controlled
by the CGAM CH530 control. If another method of freeze protection is used (i.e.
glycol, heaters, purge, etc) then the pump may be controlled by another system.
Chilled Water Pump Control - Field Supplied Dual Pumps
CH530 can provide pump control for two customer-supplied pumps, as long as the pump
contactor coils 1A9 and connect the pump fault feedback signals 1A12 are properly
connected .
In this situation, the unit will leave the factory with Evaporator Pump Control (EVPC) = No
Pump Control (Pump Request Relay) (NPMP) and Evaporator Pump Fault Input (EVFI) =
Installed (INST).When the contactors and pumps are set up in the field, the CH530 Service
Tool (TechView) must be used to reconfigure to Evaporator Pump Control = Dual Pump
Fixed Speed and Evaporator Pump Fault Input = Not Installed or Installed depending on
how the fault feedback wire is connected. It is strongly recommended to install the Fault
Input if possible as the controls will “hot-swap” the pumps upon detection of a fault, and
may avoid the inevitable Flow Loss diagnostic (and unit shutdown) that will result if there
is no fault feedback.
When configured for Dual Pump Fixed Speed, the CH530 will swap pumps on detection
of a fault (if installed), or when a flow loss or overdue event occurs. It will also switch
pumps each time the overall pump request is removed and re-engaged, unless a fault is
detected on one of the pumps. If faults are detected on both pumps, the unit will be shut
down.
In addition to the factory installed flow switch, a field-supplied auxiliary contact is
required, so that the chiller will only detect flow if a pump is running and the flow switch
says flow is present.
60
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Installation - Electrical
Alarm and Status Relay Outputs (Programmable Relays)
A programmable relay concept provides for enunciation of certain events or states of the
chiller, selected from a list of likely needs, while only using four physical output relays,
as shown in the field wiring diagram. The four relays are provided (generally with a Quad
Relay Output LLID) as part of the Alarm Relay Output Option. The relay’s contacts are
isolated Form C (SPDT), suitable for use with 120 VAC circuits drawing up to 2.8 amps
inductive, 7.2 amps resistive, or 1/3 HP and for 240 VAC circuits drawing up to 0.5 amp
resistive.
The list of events/states that can be assigned to the programmable relays can be found
in Table 20. The relay will be energized when the event/state occurs.
Table 20. Alarm and Status Relay Output Configuration Table
Alarm - Latching
Alarm - Auto Reset
Alarm
Alarm Ckt 1
Alarm Ckt 2
Chiller Limit Mode
(with a 20 minute
filter)
Circuit 1 Running
Circuit 2 Running
Chiller Running
Maximum Capacity
Description
This output is true whenever there is any active diagnostic that requires a manual reset to clear, that
affects either the Chiller, the Circuit, or any of the Compressors on a circuit. This classification does not
include informational diagnostics.
This output is true whenever there is any active diagnostic that could automatically clear, that affects either
the Chiller, the Circuit, or any of the Compressors on a circuit. This classification does not include
informational diagnostics.
This output is true whenever there is any diagnostic affecting any component, whether latching or
automatically clearing. This classification does not include informational diagnostics
This output is true whenever there is any diagnostic effecting Refrigerant Circuit 1, whether latching or
automatically clearing, including diagnostics affecting the entire chiller. This classification does not include
informational diagnostics.
This output is true whenever there is any diagnostic affecting Refrigerant Circuit 2 whether latching or
automatically clearing, including diagnostics effecting the entire chiller. This classification does not include
informational diagnostics.
This output is true whenever the chiller has been running in one of the Unloading types of limit modes
(Condenser, Evaporator, Current Limit or Phase Imbalance Limit) continuously for the last 20 minutes.
This output is true whenever any compressor is running (or commanded to be running) on Refrigerant
Circuit 1, and false when no compressors are commanded to be running on that circuit.
This output is true whenever any compressor is running (or commanded to be running) on Refrigerant
Circuit 2, and false when no compressors are commanded to be running on that circuit.
This output is true whenever any compressor is running (or commanded to be running) on the chiller and
false when no compressors are commanded to be running on the chiller.
This output is true whenever the chiller has all compressors on. The output is false once one compressor
is shut off.
Relay Assignments Using TechView
CH530 Service Tool (TechView) is used to install the Alarm and Status Relay Option
package and assign any of the above list of events or status to each of the four relays
provided with the option. The relays to be programmed are referred to by the relay’s
terminal numbers on the LLID board 1A13.
The default assignments for the four available relays of the CGAM Alarm and Status
Package Option are:
CG-SVX17C-EN
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Installation - Electrical
Table 21. Default Assignments
Relay
Relay 1
Relay 2
Relay 3
Relay 4
Terminals
Terminals
Terminals
Terminals
J2 -12,11,10:
J2 - 9,8,7:
J2-6,5,4:
J2-3,2,1:
Alarm
Chiller Running
Maximum Capacity (software 18.0 or later)
Chiller Limit
If any of the Alarm/Status relays are used, provide electrical power, 115 VAC with fuseddisconnect to the panel and wire through the appropriate relays (terminals on 1A13.
Provide wiring (switched hot, neutral, and ground connections) to the remote
annunciation devices. Do not use power from the chiller’s control panel transformer to
power these remote devices. Refer to the field diagrams which are shipped with the unit.
Low Voltage Wiring
WARNING
Ground Wire!
All field-installed wiring must be completed by qualified personnel. All field-installed
wiring must comply with NEC and applicable local codes. Failure to follow this
instruction could result in death or serious injuries.
The remote devices described below require low voltage wiring. All wiring to and from
these remote input devices to the Control Panel must be made with shielded, twisted pair
conductors. Be sure to ground the shielding only at the panel.
Note: To prevent control malfunctions, do not run low voltage wiring (<30 V) in conduit
with conductors carrying more than 30 volts.
Emergency Stop
CH530 provides auxiliary control for a customer specified/installed latching trip out.
When this customer-furnished remote contact 5K24 is provided, the chiller will run
normally when the contact is closed. When the contact opens, the unit will trip on a
manually resettable diagnostic. This condition requires manual reset at the chiller switch
on the front of the control panel.
Connect low voltage leads to terminal strip locations on 1A13, J2-3 and 4. Refer to the
field diagrams that are shipped with the unit.
Silver or gold-plated contacts are recommended. These customer-furnished contacts
must be compatible with 24 VDC, 12 mA resistive load.
External Auto/Stop
If the unit requires the external Auto/Stop function, the installer must provide leads from
the remote contact 5K23 to the proper terminals on 1A13, J2-1 and 2.
The chiller will run normally when the contact is closed. When the contact opens, the
compressor(s), if operating, will go to the RUN:UNLOAD operating mode and cycle off.
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CG-SVX17C-EN
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Unit operation will be inhibited. Closure of the contact will permit the unit to return to
normal operation.
Field-supplied contacts for all low voltage connections must be compatible with dry
circuit 24 VDC for a 12 mA resistive load. Refer to the field diagrams that are shipped with
the unit.
NOTICE
Equipment damage!
Do NOT enable/disable the chiller by removing water flow or equipment damage can
occur.
Ice Building Option
CH530 provides auxiliary control for a customer specified/installed contact closure for ice
building if so configured and enabled. This output is known as the Ice Building Status
Relay. The normally open contact will be closed when ice building is in progress and open
when ice building has been normally terminated either through Ice Termination setpoint
being reached or removal of the Ice Building command. This output is for use with the
ice storage system equipment or controls (provided by others) to signal the system
changes required as the chiller mode changes from “ice building” to “ice complete”.
When contact 5K16 is provided, the chiller will run normally when the contact is open.
CH530 will accept either an isolated contact closure (External Ice Building command) or
a Remote Communicated input (Tracer) to initiate and command the Ice Building mode.
CH530 also provides a “Front Panel Ice Termination Setpoint”, settable through TechView,
and adjustable from 20 to 31°F (-6.7 to -0.5°C) in at least 1°F (1°C) increments.
When in the Ice Building mode, and the evaporator entering water temperature drops
below the ice termination setpoint, the chiller terminates the Ice Building mode and
changes to the Ice Building Complete Mode.
CAUTION
Evaporator Damage!
Freeze inhibitor must be adequate for the leaving water temperature. Failure to do so
may result in damage to system components.
TechView may also be used to enable or disable Ice Machine Control. This setting does
not prevent the Tracer from commanding Ice Building mode.
Upon contact closure, the CH530 will initiate an ice building mode, in which the unit runs
fully loaded at all times. Ice building shall be terminated either by opening the contact
or based on the entering evaporator water temperature. CH530 will not permit the ice
building mode to be reentered until the unit has been switched out of ice building mode
(open 5K20 contacts) and then switched back into ice building mode (close 5K20
contacts.)
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Installation - Electrical
In ice building, all limits (freeze avoidance, evaporator, condenser, current) will be
ignored. All safeties will be enforced.
If, while in ice building mode, the unit gets down to the freeze stat setting (water or
refrigerant), the unit will shut down on a manually resettable diagnostic, just as in normal
operation.
Connect leads from 5K20 to the proper terminals of 1A16. Refer to the field diagrams
which are shipped with the unit.
Silver or gold-plated contacts are recommended. These customer furnished contacts
must be compatible with 24 VDC, 12 mA resistive load.
External Chilled Water Setpoint (ECWS) Option
The CH530 provides inputs that accept either 4-20 mA or 2-10 VDC signals to set the
external chilled water setpoint (ECWS). This is not a reset function. The input defines
the set point. This input is primarily used with generic BAS (building automation
systems). The chilled water setpoint set via the DynaView or through digital
communication with Tracer.
The chilled water setpoint may be changed from a remote location by sending either a
2-10 VDC or 4-20 mA signal to the 1A14, J2-1 and 2. The 2-10 VDC and 4-20 mA each
correspond to a 10 to 65°F (-12 to 18°C) external chilled water setpoint.
The following equations apply:
Voltage Signal
Current Signal
As generated from external source
VDC=0.1455*(ECWS)+0.5454
mA=0.2909(ECWS)+1.0909
As processed by CH530
ECWS=6.875*(VDC)-3.75
ECWS=3.4375(mA)-3.75
If the ECWS input develops an open or short, the LLID will report either a very high or very
low value back to the main processor. This will generate an informational diagnostic and
the unit will default to using the Front Panel (DynaView) Chilled Water Setpoint.
TechView Service Tool is used to set the input signal type from the factory default of 210 VDC to that of 4-20 mA. TechView is also used to install or remove the External Chilled
Water Setpoint option as well as a means to enable and disable ECWS.
External Demand Limit Setpoint (EDLS) Option
CH530 provide a means to limit the capacity of the chiller by limiting the number of
compressors or stages that are allowed to run. The maximum number of compressor or
stages allowed to run can vary from one to the number of stages on the unit. The staging
algorithm is free to decide which compressor or stage shall be turned off or prevented
from running to meet this requirement.
CH530 shall accept either a 2-10 VDC or 4-20 mA analog input suitable for customer
connection to set the unit external demand limit setpoint (EDLS).
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CG-SVX17C-EN
Installation - Electrical
2-10 VDC and 4-20 mA shall each correspond to an EDLS range with a minimum of 0%
and a maximum of 100%. The following equations exist.
Global Scroll
Voltage Signal
Current Signal
As generated from external source
Vdc = 8*(EDLS) + 2
mA = 16*(EDLS) + 4
As processed by CH530
EDLS = (Vdc - 2)/8
EDLS = (mA - 4)/16
The minimum EDLS will be clamped at the front panel based on 100% / Total number of
Compressors. For input signals beyond the 2-10VDC or 4-20mA range, the end of range
value shall be used. For example, if the customer inputs 21 mA, the EDLS shall limit it self
to the corresponding 20 mA EDLS.
ECLS and EDLS Analog Input Signal Wiring Details:
Both the ECLS and EDLS can be connected and setup as either a 2-10 VDC (factory
default), 4-20 mA, or resistance input (also a form of 4-20 mA) as indicated below.
Depending on the type to be used, the TechView Service Tool must be used to configure
the LLID and the MP for the proper input type that is being used. This is accomplished
by a setting change on the Custom Tab of the Configuration View within TechView.
The J2-3 and J2-6 terminal is chassis grounded and terminal J2-1 and J2-4 can be used
to source 12 VDC. The ECLS uses terminals J2-2 and J2-3. EDLS uses terminals J2-5 and
J2-6. Both inputs are only compatible with high-side current sources.
Figure 32. Wiring Examples for ECLS and EDLS
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65
Installation - Electrical
Chilled Water Reset (CWR)
CH530 resets the chilled water temperature set point based on either return water
temperature, or outdoor air temperature. Return Reset is standard, Outdoor Reset is
optional.
The following shall be selectable:
•
One of three Reset Types: None, Return Water Temperature Reset, Outdoor Air
Temperature Reset, or Constant Return Water Temperature Reset.
•
Reset Ratio Set Points.
•
For outdoor air temperature reset there shall be both positive and negative reset
ratio's.
•
Start Reset Set Points.
•
Maximum Reset Set Points.
The equations for each type of reset are as follows:
Return
CWS' = CWS + RATIO (START RESET - (TWE - TWL))
and CWS' > or = CWS
and CWS' - CWS < or = Maximum Reset
Outdoor
CWS' = CWS + RATIO * (START RESET - TOD)
and CWS' > or = CWS
and CWS' - CWS < or = Maximum Reset
where
CWS' is the new chilled water set point or the "reset CWS"
CWS is the active chilled water set point before any reset has occurred, e.g. normally
Front Panel, Tracer, or ECWS
RESET RATIO is a user adjustable gain
START RESET is a user adjustable reference
TOD is the outdoor temperature
TWE is entering evap. water temperature
TWL is leaving evap. water temperature
MAXIMUM RESET is a user adjustable limit providing the maximum amount of reset. For
all types of reset, CWS' - CWS < or = Maximum Reset.
66
CG-SVX17C-EN
Installation - Electrical
Reset Type
Return:
Reset Ratio
Range
10 to 120%
Outdoor
80 to -80%
Start Reset
Range
4 to 30 F
(2.2 to 16.7 C)
50 to 130 F
(10 to 54.4 C)
Maximum
Reset Range
0 to 20 F
(0.0 to 11.1 C)
0 to 20 F
(0.0 to 11.1 C)
Increment
English Units
1%
Increment
SI Units
1%
Factory Default
Value
50%
1%
1%
10%
In addition to Return and Outdoor Reset, the MP provides a menu item for the operator
to select a Constant Return Reset. Constant Return Reset will reset the leaving water
temperature set point so as to provide a constant entering water temperature. The
Constant Return Reset equation is the same as the Return Reset equation except on
selection of Constant Return Reset, the MP will automatically set Ratio, Start Reset, and
Maximum Reset to the following.
RATIO = 100%
START RESET = Design Delta Temp.
MAXIMUM RESET = Design Delta Temp.
The equation for Constant Return is then as follows:
CWS' = CWS + 100% (Design Delta Temp. - (TWE - TWL))
and CWS' > or = CWS
and CWS' - CWS < or = Maximum Reset
When any type of CWR is enabled, the MP will step the Active CWS toward the desired
CWS' (based on the above equations and setup parameters) at a rate of 1 degree F every
5 minutes until the Active CWS equals the desired CWS'. This applies when the chiller
is running.
When the chiller is not running the CWS is reset immediately (within one minute) for
Return Reset and at a rate of 1 degree F every 5 minutes for Outdoor Reset. The chiller
will start at the Differential to Start value above a fully reset CWS or CWS' for both Return
and Outdoor Reset.
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67
Installation - Electrical
Communications Interface options
Tracer Communications Interface
This option allows the Tracer CH530 controller to exchange information (e.g. operating
setpoints and Auto/Standby commands) with a higher-level control device, such as a
Tracer Summit or a multiple-machine controller. A shielded, twisted pair connection
establishes the bi-directional communications link between the Tracer CH530 and the
building automation system.
Note: To prevent control malfunctions, do not run low voltage wiring (<30 V) in conduit
with conductors carrying more than 30 volts.
WARNING
Ground Wire!
All field-installed wiring must be completed by qualified personnel. All field-installed
wiring must comply with NEC and applicable local codes. Failure to follow this
instruction could result in death or serious injuries.
Field wiring for the communication link must meet the following requirements:
•
All wiring must be in accordance with the NEC and local codes.
•
Communication link wiring must be shielded, twisted pair wiring (Belden 8760 or
equivalent). See the table below for wire size selection:
Table 22. Wire Size
Wire Size
14 AWG (2.5 mm2)
16 AWG (1.5 mm2)
18 AWG (1.0 mm2)
68
Maximum Length of Communication Wire
5,000 FT (1525 m)
2,000 FT (610 m)
1,000 FT (305 m)
•
The communication link cannot pass between buildings.
•
All units on the communication link can be connected in a “daisy chain”
configuration.
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Installation - Electrical
LonTalk Communications Interface for Chillers (LCI-C)
CH530 provides an optional LonTalk Communication Interface (LCI-C) between the chiller
and a Building Automation System (BAS). An LCI-C LLID shall be used to provide
“gateway” functionality between a LonTalk compatible device and the Chiller. The inputs/
outputs include both mandatory and optional network variables as established by the
LonMark Functional Chiller Profile 8040.
Installation Recommendations
•
22 AWG Level 4 unshielded communication wire recommended for most LCI-C
installations
•
LCI-C link limits: 4500 feet, 60 devices
•
Termination resistors are required
•
105 ohms at each end for Level 4 wire
•
82 ohms at each end for Trane "purple" wire
•
LCI-C topology should be daisy chain
•
Zone sensor communication stubs limited to 8 per link, 50 feet each (maximum)
•
One repeater can be used for an additional 4500 feet, 60 devices, 8 communication
stubs
Table 23. LonTalk Points List
Inputs/Outputs
Chiller Enable/Disable Request
Chilled Water Setpoint
Capacity Limit Setpoint
(used by Demand Limit Setpoint)
Operating Mode Request
Chiller Running State
Active Chilled Water or Hot Water Setpoint
Actual Running Capacity
Active Capacity Limit Setpoint (from Active
Demand Limit Setpoint)
Evaporator Leaving Water Temp
Evaporator Entering Water Temp
Alarm Description
Chiller Status
Length and Contents
SNVT / UNVT
2 bytes
2 bytes
2 bytes
SNVT_switch
SNVT_temp_p
SNVT_lev_percent
1
2
2
2
2
byte
bytes
bytes
bytes
bytes
SNVT_hvac_mode
SNVT_switch
SNVT_temp_p
SNVT_lev_percent
SNVT_lev_percent
2 bytes
2 bytes
31 bytes
3 bytes
SNVT_temp_p
SNVT_temp_p
SNVT_str_asc
SNVT_chlr_status
00 = Chiller off
01 = Chiller in start mode
02 = Chiller in run mode
03 = Chiller in pre-shutdown mode
04 = Chiller in service mode
03 = Cooling only
0A = Cooling with compressor not running
0B = Ice-making mode
bit 0 (MSB) = in alarm mode
bit 1 = run enabled
bit 2 = local
bit 3 = limited
bit 4 = evaporator water flow
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69
CGAM Operating Principles
This section contains an overview of the operation of CGAM air-cooled liquid chiller
equipped with microcomputer-based control systems. It describes the overall operating
principles of the CGAM water chiller.
Note: To ensure proper diagnosis and repair, contact a qualified service organization if
a problem should occur.
General
The Model CGAM units are scroll compressor air-cooled liquid chillers. These units are
equipped with unit-mounted starter/control panels and operates with R-410A refrigerant.
The basic components of an CGAM unit are:
•
Unit-mounted panel containing starter and Tracer CH530 controller and Input/Output
LLIDS
•
Scroll compressors
•
Brazed plate evaporator
•
Air-cooled condenser with subcooler
•
Electronic expansion valve
•
Optional partial heat recovery
•
Related interconnecting piping.
Components of a typical CGAM unit are identified in the following diagrams.
Figure 33. Slant 20-35 Ton Component Location
Discharge line
Ball valve
70
Vent
valve
High pressure side
Service valves
High pressure side
Low pressure side
Schrader
Schrader
Schrader
Drain
valve
Flow
switch
CG-SVX17C-EN
CGAM Operating Principles
Figure 34. V 40-70 Ton Component Location - circuit 1
High pressure side
Schrader
Low pressure side
Schrader
Discharge line
Ball valve
Figure 35. V 40-70 Ton Component Location- circuit 2
Flow
switch
CG-SVX17C-EN
Vent
valve
Drain
valve
Service
valves
Discharge line
ball valve
Low pressure side
Schrader
High pressure side
Schrader
71
CGAM Operating Principles
Figure 36. W 80-120 Ton Component Location - compressor view
Schrader
High pressure
cut out
Pressure
transducers
Schrader
High temp
sensor
Figure 37. W 80-120 Ton Component Location - evaporator side
Pressure
HI PRESSURE CUTOUT PRESSURE
transducers
High pressure
TRANSDUCER
cutout
Schrader
Service
valves
SERVICE
VALVE
SCHRAEDER
Schrader
SCHRAEDER
DETAIL “B”
72
temp
HI High
TEMP
sensor
SENSOR
CG-SVX17C-EN
CGAM Operating Principles
Refrigerant Cycle
The refrigeration cycle of the Model CGAM chiller is conceptually similar to other Trane
air-cooled chiller products. The CGAM chiller uses a brazed plate evaporator and an aircooled condenser. The compressors use suction gas cooled motors and an oil
management system to provide almost oil-free refrigerant to the condenser and
evaporator for maximum heat transfer while lubricating and sealing compressor
bearings. The lubrication system helps to assure long compressor life and contributes to
quiet operation.
Refrigerant condensers in the air-cooled heat exchanger which is available in three
configurations—slant, V and W—based on the CGAM nominal tonnage cooling capacity.
Liquid refrigerant is metered into the brazed plate evaporator using an electronic
expansion valve to maximize chiller efficiency at full and part load operation.
The CGAM chiller is equipped with a unit-mounted starter and control panel.
Microprocessor-based unit control modules (Trane Tracer™CH530) provide accurate
chilled water control and provide monitoring, protection and adaptive limit functions.
The adaptive nature of the controls intelligently prevent the chiller from operating
outside of its limits, or compensates for unusual operating conditions while keeping the
chiller running rather than simply shutting off the chiller. If problems do occur, the CH530
controls provide diagnostic messages to help the operator in troubleshooting.
Refrigerant Cycle Description
The CGAM refrigeration cycle is described using the pressure-enthalpy chart shown in
Figure 38. Key State Points 1 through 5 are indicated on the chart. A schematic showing
refrigerant components throughout the system is shown in Figure 39.
Refrigerant evaporation occurs in the brazed plate evaporator. Metered refrigerant
vaporizes as it cools the chilled water or liquid flowing through the evaporator passages.
The refrigerant vapor leaves the evaporator as superheated gas. State Point 1.
Refrigerant vapor generated in the evaporator flows to the compressor suction manifold
where it enters and flows across the compressor motor windings to provide cooling. The
vapor is then compressed in the compressor scroll chambers and discharged. Oil from
the compressor sump lubricates the bearings and seals the small clearances between the
compressor scrolls. Refrigerant vapor is discharged to the air-cooled condenser at State
Point 2.
After the refrigerant vapor condenses into liquid (State Points 3 and 4) it is returned to
the evaporator (State Point 5) where the refrigerant again flashes into vapor and the
refrigeration cycle repeats.
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73
CGAM Operating Principles
Figure 38. Pressure/Enthalpy Curve
Liquid
3
4
2
Pressure
1
5
Gas
Enthalpy
74
CG-SVX17C-EN
CGAM Operating Principles
Figure 39. CGAM Refrigerant Circuit
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75
CGAM Operating Principles
Oil System Operation (CGAM)
Overview
The oil is efficiently separated inside the scroll compressor and will remain in the scroll
compressor during all run cycles. Between 1-2% of the oil circulates around with the
refrigerant.
Figure 40. CGAM Scroll Compressor Sizes
CSHD125-161 (10-13) TON
76
CSHN184-250 (15-20 TON)
CSHN315-374 (25-30 TON
CG-SVX17C-EN
CGAM Operating Principles
Figure 41. 10-15 Ton Compressor Internal Components
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77
CGAM Operating Principles
Figure 42. 15-30 Ton Compressor Internal Components
78
CG-SVX17C-EN
Controls Interface
CH530 Communications Overview
The Trane CH530 control system that runs the chiller consists of several elements:
•
The main processor collects data, status, and diagnostic information and
communicates commands to the starter module and the LLID (for Low Level
Intelligent Device) bus. The main processor has an integral display (DynaView).
•
Low level intelligent device (LLID) bus. The main processor communicates to each
input and output device (e.g. temperature and pressure sensors, low voltage binary
inputs, analog input/output) all connected to a four-wire bus, rather than the
conventional control architecture of signal wires for each device.
•
The communication interface to a building automation system (BAS).
•
A service tool to provide all service/maintenance capabilities.
Main processor and service tool (TechView) software is downloadable from
www.trane.com. The process is discussed later in this section under TechView Interface.
DynaView provides bus management. It has the task of restarting the link, or filling in for
what it sees as “missing” devices when normal communications has been degraded.
Use of TechView may be required.
The CH530 uses the IPC3 protocol based on RS485 signal technology and communicating
at 19.2 Kbaud to allow 3 rounds of data per second on a 64-device network. A typical fourcompressor CGAM will have around 30 devices.
Most diagnostics are handled by the DynaView. If a temperature or pressure is reported
out of range by a LLID, the DynaView processes this information and calls out the
diagnostic. The individual LLIDs are not responsible for any diagnostic functions.
Note: It is imperative that the CH530 Service Tool (TechView) be used to facilitate the
replacement of any LLID or reconfigure any chiller component. TechView is
discussed later in this section.
Controls Interface
Each chiller is equipped with a DynaView interface. The DynaView has the capability to
display information to the operator including the ability to adjust settings. Multiple
screens are available and text is presented in multiple languages as factory-ordered or
can be easily downloaded from www.trane.com.
TechView can be connected to either the DynaView module and provides further data,
adjustment capabilities, diagnostics information using downloadable software.
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79
Controls Interface
DynaView Interface
The DynaView share the same enclosure design: weatherproof and durable plastic for
use as a stand-alone device on the outside of the unit or mounted nearby.
The display on DynaView is a 1/4 VGA display with a resistive touch screen and an LED
backlight. The display area is approximately 4 inches wide by 3 inches high (102mm x
60mm).
Key Functions
In this touch screen application, key functions are determined completely by software
and change depending upon the subject matter currently being displayed. The basic
touch screen functions are outlined below.
Radio Buttons
Radio buttons show one menu choice among two or more alternatives, all visible. The
radio button model mimics the buttons used on old-fashioned radios to select stations.
When one is pressed, the one that was previously pressed “pops out” and the new
station is selected. In the DynaView model the possible selections are each associated
with a button. The selected button is darkened, presented in reverse video to indicate it
is the selected choice. The full range of possible choices as well as the current choice is
always in view.
Spin Value Buttons
Spin values are used to allow a variable setpoint to be changed, such as leaving water
setpoint. The value increases or decreases by touching the increment (+) or decrement
(-) arrows.
Action Buttons
Action buttons appear temporarily and provide the user with a choice such as Enter or
Cancel.
Hot Links
Hot links are used to navigate from one view to another view.
File Folder Tabs
File folder tabs are used to select a screen of data. Just like tabs in a file folder, these serve
to title the folder/screen selected, as well as provide navigation to other screens. In
DynaView, the tabs are in one row across the top of the display. The folder tabs are
separated from the rest of the display by a horizontal line. Vertical lines separate the tabs
from each other. The folder that is selected has no horizontal line under its tab, thereby
making it look like a part of the current folder (as would an open folder in a file cabinet).
The user selects a screen of information by touching the appropriate tab.
80
CG-SVX17C-EN
Controls Interface
Display Screens
Basic Screen Format
The basic screen format appears as:
File folder
Tabs
Page scroll
(up)
Radio buttons
Contrast control (lighter)
Tab navigator
Page scroll
(down)
Line scroll
(up/down)
Contrast control (darker)
The file folder tabs across the top of the screen are used to select the various display
screens.
Scroll arrows are added if more file tabs (choices) are available. When the tabs are at the
left most position, the left navigator will not show and only navigation to the right will
be possible. Likewise when the right most screen is selected, only left navigation will be
possible.
The main body of the screen is used for description text, data, setpoints, or keys (touch
sensitive areas). The Chiller Mode is displayed here.
The double up arrows cause a page-by-page scroll either up or down. The single arrow
causes a line by line scroll to occur. At the end of the page, the appropriate scroll bar will
disappear.
A double arrow pointing to the right indicates more information is available about the
specific item on that same line. Pressing it will bring you to a subscreen that will present
the information or allow changes to settings.
The bottom of the screen (Fixed Display) is present in all screens and contains the
following functions. The left circular area is used to reduce the contrast/viewing angle
of the display. The right circular area is used to increase the contrast/viewing angle
of the display. The contrast may require re-adjustment at ambient temperatures
significantly different from those present at last adjustment.
CG-SVX17C-EN
81
Controls Interface
The other functions are critical to machine operation. The AUTO and STOP keys are used
to enable or disable the chiller. The key selected is in black (reverse video). The chiller will
stop when the STOP key is touched and after completing the Shutting Down mode.
Touching the AUTO key will enable the chiller for active cooling if no diagnostic is present.
(A separate action must be taken to clear active diagnostics.)
The AUTO and STOP keys, take precedence over the Enter and Cancel keys. (While a
setting is being changed, AUTO and STOP keys are recognized even if Enter or Cancel has
not been pressed.)
The ALARMS button appears only when an alarm is present, and blinks (by alternating
between normal and reverse video) to draw attention to a diagnostic condition. Pressing
the ALARMS button takes you to the corresponding tab for additional information.
Auto, Stop/Immediate Stop
The Auto and Stop keys will be presented as radio buttons within the persistent key
display area. The selected key will be black.
The chiller will stop when the Stop key is touched, entering the Run Unload mode. An
informational screen will be displayed for 5 seconds indicating that a second depression
of an “Immediate Stop” key during this time period will result in an immediate stop.
Pressing the “Immediate Stop” key while the immediate stop screen is displayed, will
cause the unit to stop immediately, skipping operational pumpdown.
NOTICE
Equipment damage!
Do NOT enable/disable the chiller by removing water flow or equipment damage can
occur.
Touching the Auto key will arm the chiller for active cooling if no diagnostic is present.
As in UCP2, a separate action must be taken to clear active diagnostics.
The AUTO and STOP, take precedence over the ENTER and CANCEL keys. (While a setting
is being changed, AUTO and STOP keys are recognized even if ENTER or CANCEL has not
been pressed.
82
CG-SVX17C-EN
Controls Interface
Diagnostic Annunciation
When an active diagnostic is present, an Alarms key will be added to the persistent
display area. This key will serve two purposes. The first purpose will be to alert the
operator that a diagnostic exists. The second purpose is to provide navigation to a
diagnostic display screen.
Diagnostic Screen
A complete listing of diagnostics and codes is included in the Diagnostic Section.
Manual Override Exists
An indicator to present the presence of a manual override will share space with the
Alarms enunciator key. While a manual override exists, the space used for the Alarms key
will be occupied by a “Manual” icon, that will display solid inverse color similar to the
appearance of the Alarms enunciator. An Alarm will take precedence of the Manual, until
the reset of active alarms, at which point the Manual indicator would re-appear if such
an override exists.
If the Manual indicator is pressed, the Manual Control Settings screen will be displayed.
CG-SVX17C-EN
83
Controls Interface
Main Screen
The Main screen is a “dashboard” of the chiller. High level status information is
presented so that a user can quickly understand the mode of operation of the chiller.
The Chiller Operating Mode will present a top level indication of the chiller mode (i.e.
Auto, Running, Inhibit, Run Inhibit, etc.). The “additional info” icon will present a
subscreen that lists in further detail the subsystem modes.
The Main screen shall be the default screen. After an idle time of 30 minutes the CH530
shall display the Main screen with the first data fields.
The remaining items (listed in the following table) will be viewed by selecting the up/
down arrow icons.
Table 24. Main Screen Data Fields Table
Description
Units
Chiller Mode (>> submodes)
enumeration
Circuit Mode (>> submodes)
enumeration
Circuit 1 Mode (>> submodes)
enumeration
Circuit 2 Mode (>> submodes)
enumeration
Evap Ent/Lvg Water Temp
F/C
0.1
Active Chilled Water Setpoint
(>>source)
F/C
0.1
Active Hot Water Setpoint
(>>source)
F/C
0.1
Active Demand Limit Setpoint
(>>source)
%
1
Outdoor Air Temperature
F/C
0.1
Software Type
enumeration
Scroll
Software Version
84
Resolution
X.XX
CG-SVX17C-EN
Controls Interface
Chiller Operating Mode
The machine-operating mode indicates the operational status of the chiller. A subscreen
with additional mode summary information will be provided by selection of an additional
information icon (>>). The operating mode line will remain stationary while the
remaining status items scroll with the up/down arrow keys.
Active Chilled Water Setpoint
The active chilled water setpoint is the setpoint that is currently in use. It results from the
logical hierarchy of setpoint arbitration by the main processor. It will be displayed to 0.1
degrees Fahrenheit or Celsius.
Touching the double arrow to the left of the Active Chilled Water Setpoint will take the
user to the active chilled water setpoint arbitration sub-screen.
Active Chilled Water Subscreen
The active chilled water setpoint is that setpoint to which the unit is currently controlling.
It is the result of arbitration between the front panel, BAS, schedule, external, and
auxiliary setpoints (schedule and auxiliary not shown in the following diagram), which
in turn may be subjected to a form of chilled water reset.
The chilled water reset status area in the right most column will display one of the
following messages
•
Return
•
Constant Return
•
Outdoor
•
Disabled
The left column text “Front Panel”, “BAS” or “Schedule”, “External”, “Auxiliary”, “Chilled
Water Reset”, and “Active Chilled Water Setpoint” will always be present regardless of
installation or enabling those optional items. In the second column “-----” will be shown
if that option is Not Installed, otherwise the current setpoint from that source will be
shown.
CG-SVX17C-EN
85
Controls Interface
Setpoints that are adjustable from the DynaView (Front Panel Chilled Water Setpoint,
Auxiliary Chilled Water Setpoint) will provide navigation to their respective setpoint
change screen via a double-arrow to the right of the setpoint source text. The setpoint
change screen will look identical to the one provided in the Chiller Setpoints screen. The
“Back” button on the setpoint change screen provides navigation back to the setpoint
arbitration screen.
The “Back” button on the setpoint arbitration screen provides navigation back to the
chiller screen.
Other Active Setpoints
The Active Demand Limit Setpoint will behave the same was as the Active Chilled Water
Setpoint, except that its units are in percent and there is an Ice Building source in place
of the Auxiliary source. Front Panel Demand Limit Setpoint will provide navigation to its
setpoint change screen.
Password-Protected Settings
The user can change some settings from the DynaView display on the chiller. Other
settings are password-protected. In order to change these setting the password is 314.
Settings Screen
The Settings screen provides a user the ability to adjust settings necessary to support
daily tasks. The layout provides a list of sub-menus, organized by typical subsystem. This
organization allows each subscreen to be shorter in length which should improve the
user's navigation.
A sample Settings screen is a list of the subsystems as shown below.
86
CG-SVX17C-EN
Controls Interface
Settings Sub-Screens - Table of Text, Data, Ranges, etc.
Below is the table of text, resolution, field size, enumerated selections, and data for
Settings subscreens. See the functional specification “CGAM Settings and Setpoints” for
further information such as ranges and operation.
Table 25. Unit
Description
Resolution or
(Enumerations)
Units
Front Panel Cool
Cool
Enum
Front Panel Chilled Water Setpt: + or - XXX.X
Temperature
Auxiliary Chilled Water Setpt:
Temperature
+ or - XXX.X
Front Panel Demand Limit Setpt: XXX
Percent
Front Panel Ice Build Cmd:
Enum
On/Auto
Front Panel Ice Termn Setpt:
+ or - XXX.X
Temperature
Front Panel Noise Stb Cmd:
On/Auto
Enum
Setpoint Source:
(BAS/Ext/FP, Ext/ Front Panel,
Front Panel), BAS/Ext/FP
Enum
Table 26. Feature Settings
Resolution or
(Enumerations), Default
Units
Power-Up Start Delay:
10 seconds
Seconds (MM:SS)
Cool Low Ambient Lockout:
(Enable, Disable), Enable
Enum
Description
Cool Low Ambient Lockout Stpt: + or - XXX.X
Temperature
Water Pump Off Delay:
1 minute
Minutes (HH:MM)
Ice Building:
(Enable, Disable), Disable
Enum
PHR Fan Control:
(Enable, Disable), Disable
Enum
Local Time of Day Schedule
Subscreen (see below)
External/BAS
Subscreen (see below)
Chilled Water Reset
Subscreen (see below)
Table 27. External/BAS Feature Settings (subscreen of Feature Settings)
CG-SVX17C-EN
Description
Resolution or
(Enumerations), Default
Units
Ext Chilled Setpt:
(Enable, Disable), Disable
Enum
Ext Demand Limit Setpoint:
(Enable, Disable), Disable
Enum
Max Capacity Debounce Time:
30 seconds
Seconds (MM:SS)
Limit Annunc Debounce Time:
30 seconds
Seconds (MM:SS)
LCI-C Diag Encoding:
(Text, Code) Text
Enum
LCI-C Diag Language:
(English, Selection 2, Selection
3) English (0)
Enum
87
Controls Interface
Table 28. Chilled Water Reset Feature Settings (subscreen of Feature Settings)
Resolution or (Enumerations),
Default
Description
Units
Chilled Water Reset:
(Const Return, Outdoor, Return,
Disable), Disable
Enum
Return Reset Ratio:
XXX
Percent
Return Start Reset:
XXX.X
Temperature
Return Maximum Reset:
XXX.X
Temperature
Outdoor Reset Ratio:
XXX
Percent
Outdoor Start Reset:
XXX.X
Temperature
Outdoor Maximum Reset:
XXX.X
Temperature
Table 29. Control Settings
Description
Resolution or (Enumerations),
Default
Units
Cooling Design Delta Temp:
XXX.X
Delta Temperature
Heating Design Delta Temp:
XXX.X
Delta Temperature
Differential to Start:
XXX.X
Delta Temperature
Differential to Stop:
XXX.X
Delta Temperature
Staging Deadband Adjustment:
XXX.X
Delta Temperature
Capacity Control Softload Time:
120 seconds
Seconds (MM:SS)
Circuit Staging Option:
(Bal Starts/Hrs, Circuit 1 Lead,
Circuit 2 Lead), Bal Starts/Hrs
Enum
Compressor Staging Option:
(Fixed, Bal Starts/Hrs)
Enum
Leaving Water Temp Cutout:
XX.X
Temperature
Low Refrigerant Temp Cutout:
XX.X
Temperature
Evap Flow Overdue Wait Time:
30 seconds
Seconds (MM:SS)
Disch Press Limit Setpt:
85%
Percent
Disch Press Limit Unload Setpt:
97%
Percent
Table 30. System Manual Control Settings
Description
Resolution or
(Enumerations), Default
Units
Evap Water Pump
(Auto, On), Auto
Enum
Monitor Value
1) Evap Flow status
2) Override Time Remaining
88
Clear Restart Inhibit Timer
(Clear Timer)
1) Restart Inhibit Time
(composite value)
Capacity Control
(Auto, Manual) Auto
Enum
Binding
Special
Special None
CG-SVX17C-EN
Controls Interface
Table 31. Circuit Manual Control Settings
Description
Resolution or (Enumerations), Default
Units
Front Panel Ckt
Lockout
(Not Locked Out, Locked Out), Not Locked Out
Enum
Cprsr A Lockout
(Not Locked Out, Locked Out), Not Locked Out
Enum
Cprsr B Lockout
(Not Locked Out, Locked Out), Not Locked Out
Enum
Cprsr C Lockout
(Not Locked Out, Locked Out), Not Locked Out
Enum
Manual EXV Control:
(Auto, Manual), Auto
Enum
Manual EXV Position
Cmd:
XXX
Percent
Cooling EXV Manual
Ctrl:
(Auto, Manual), Auto
Enum
Cooling EXV Manual
Position Cmd:
XXX
Percent
Cprsr A Pumpdown
Monitor Value
EXV Status
Suction Pressure
EXV Status
Suction Pressure
Status: (Avail, Not Avail, Pumpdown)
Enum
Suction Pressure
Enum
Suction Pressure
Enum
Suction Pressure
Override Subscreen command buttons:
(Abort, Pumpdown) - button is either grayed out
or not shown if not available
Cprsr B Pumpdown
Status: (Avail, Not Avail, Pumpdown)
Override Subscreen command buttons:
(Abort, Pumpdown) - button is either grayed out
or not shown if not available
Cprsr C Pumpdown
Status: (Avail, Not Avail, Pumpdown)
Override Subscreen command buttons:
(Abort, Pumpdown) - button is either grayed out
or not shown if not available
Local Time of Day Schedule Screen
To access the Local Time of Day Schedule Screen this option must be installed in
TechView. This option will then be shown under the Feature Settings screen.
This screen shows the overall feature enable/disable setting, plus a listing of all 10 events,
including their event time and active days of the week.
CG-SVX17C-EN
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Controls Interface
Local Settings Event Screen
This screen displays the details for a particular event, including the active days, event
time, and the Local Schedule arbitrated setpoints. Selecting a given item will allow the
user to modify it.
Event Enable/Disable Screen
90
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Controls Interface
Event Active Days Screen
This screen is unusual because it does not use radio buttons, which only allow one active
selection at a time. These buttons are more like “selection buttons” or check boxes. The
user can select any combination of days, or none at all.
Event Time Screen
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Controls Interface
Event Arbitrated Settings Screens
For analog setpoints, the screen is slightly different than the standard screen, because
there are two additional buttons - “Used” and “Not Used”. Selecting “Used” will make
the setting valid and allow the user to change the value. Selecting “Not Used” will make
the setting invalid, and will not allow the user to change the value.
Table 32. Display Settings
Description
Date Format
Resolution or (Enumerations),
Default
Units
(“mmm dd, yyyy”, “dd-mmm-yyyy”),
“mmm dd, yyyy
Enum
(12-hour, 24-hour), 12-hour
Enum
Keypad/Display Lockout3
(Enable, Disable), Disable
Enum
Display Units
(SI, English), English
Enum
Pressure Units
(Absolute, Gauge), Gauge
Enum
Local Atmospheric Pressure:
XXX.X
Pressure (always absolute)
Language1
(English, Selection 2, Selection 3),
English (0)
Enum
Date4
Time Format
Time of Day4
(1) Language choices are dependent on what the Service Tool has setup in the Main Processor. Get Radio Button
names from Main Processor setups. Language selections will include English and qty 2 alternate as loaded by
TechView.
(2) Temperatures will be adjustable to 0.1 deg F or C. The Main Processor will provide the minimum and maximum
allowable value.
(3) Enables a DynaView Lockout screen. All other screens time-out in 30 minutes to this screen. The DynaView Lockout
Screen will have 0-9 keypad to permit the user to re-enter the other DynaView screens with a fixed password.
See below for further details.
(4) The Date and Time setup screen formats deviate slightly from the standard screens defined above. See the alternate screen layouts below.
(5) Language shall always be the last setting listed on the Control Settings menu (which will also always be the last
item listed on the Settings menu list). This will allow a user to easily find language selection if looking at an unrecognizable language.
(6) The pump on mode terminates after 60 minutes.
92
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Controls Interface
Upon selecting a Settings list all setpoints available to change along with their current
value will appear. The operator selects a setpoint to change by touching either the verbal
description or setpoint value. Doing this causes the screen to switch to either the Analog
Settings Subscreen or the Enumerated Settings Subscreen.
Analog Setting Subscreens
Analog Settings Subscreen displays the current value of the chosen setpoint in the upper
½ of the display. It is displayed in a changeable format consistent with its type. Binary
setpoints are considered to be simple two state enumerations and will use radio buttons.
Analog setpoints are displayed as spin buttons. The lower half of the screen is reserved
for help screens.
All setpoint subscreens will execute the equivalent of a Cancel key if any display activities
cause the subscreen to be left before a new setpoint is entered. E.g. if the Alarms key is
pressed before a new setpoint is entered, the new setpoint will be cancelled. The same
applies to any time-outs.
Pressing the Auto or Stop keys will not cause a cancel since the setpoint subscreen is not
left on this action.
CG-SVX17C-EN
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Controls Interface
Enumerated Settings Subscreen
The enumerated setpoint subscreen has no cancel or enter key. Once a radio key is
depressed the item is immediately set to the new enumeration value.
Mode Override Subscreens
The Mode Override subscreen has no cancel or enter key. Once a radio key is depressed
that new value is immediately assumed.
Mode Override for Enumerated Settings is shown below:
94
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Controls Interface
Date/Time Subscreen
The setpoint screen for setting up the CH530 date is shown below: The user must select
Day, Month, or Year and then use the up/down arrows to adjust.
The setpoint screen for setting up the CH530 time with a 12 hour format is shown below:
The user must select Hour, or Minute and then use the up/down arrows to adjust.
Adjusting hours will also adjust am/pm.
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Controls Interface
Lockout Screen
The DynaView Display and Touch Screen Lock screen is shown. This screen is used if the
Display and Touch Screen Lock feature is Enabled. Thirty minutes after the last key stroke
this screen will be displayed and the Display and Touch Screen will be locked out until
“159 Enter” is entered.
Until the proper password is entered there will be no access to the DynaView screens
including all reports, all setpoints, and Auto/Stop/Alarms/Interlocks. The password “159”
is not programmable from either DynaView or TechView.
If the Display and Touch Screen Lock feature is Disabled, a similar screen including “Enter
159 to Unlock” will show if the MP temperature is approximately less than 32°F (0°C) and
it has been 30 minutes after the last key stroke. Note: the main processor is equipped
with an on-board temp sensor which enables the ice protection feature (OAT is not
required).
Freezing rain can form on the touch panel and actuate the touch screen as the rain freezes
on its surface. A specific pattern of key presses will avoid this issue.
96
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Controls Interface
Reports
The Reports tab will allow a user to select from a list of possible reports headings (i.e.
Custom, ASHRAE Guideline 3, Refrigerant, etc.) Each report will generate a list of status
items as defined in the tables that follow:
Historic Diagnostics are also included in this menu.
Table 33. Report name: System Evaporator
Description
Resolution
Units
Evap Entering Water Temp:
+ or - XXX.X
Temperature
Evap Leaving Water Temp:
+ or - XXX.X
Temperature
Evap Pump Inverter 1 Run Cmd:
On, Off
Enumeration
Evap Pump 1 Command:
On, Off
Enumeration
Evap Pump 2 Command:
On, Off
Enumeration
Evap Water Flow Switch Status:
Flow, No Flow
Enumeration
Table 34. Report name: Circuit Evaporator
CG-SVX17C-EN
Description
Resolution
Units
Suction Pressure
XXX.X
Pressure
Suction Saturated Rfgt Temp:
+ or - XXX.X
Temperature
Suction Temperature:
+ or - XXX.X
Temperature
Evap Approach Temp:
+ or - XXX.X
Temperature
EXV Position Status:
XXX.X
Percent
Heating EXV Position Status:
XXX.X
Percent
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Controls Interface
Table 35. Report name: System Condenser
Description
Resolution
Units
Outdoor Air Temperature:
+ or - XXX.X
Temperature
Heat Rcvy Entering Water Temp:
+ or - XXX.X
Temperature
Heat Rcvy Leaving Water Temp:
+ or - XXX.X
Temperature
Table 36. Report name: Circuit Condenser
Description
Resolution
Units
Discharge Pressure:
XXX.X
Pressure
Discharge Saturated Rfgt Temp:
+ or - XXX.X
Temperature
Discharge Temperature:
+ or - XXX.X
Temperature
Cond Approach Temp:
+ or - XXX.X
Temperature
Current Air Flow:
XXX.X
Percent
Table 37. Report name: System Compressor
Description
Resolution
Units
Chiller Running Time:
XXXX:XX
hr:min
Table 38. Report name: Circuit Compressor
98
Description
Resolution
Units
Compressor A Starts:
XXXX
Integer
Compressor A Running Time:
XXXX:XX
hr:min
Compressor B Starts:
XXXX
Integer
Compressor B Running Time:
XXXX:XX
hr:min
Compressor C Starts:
XXXX
Integer
Compressor C Running Time:
XXXX:XX
hr:min
CG-SVX17C-EN
Controls Interface
Table 39. Report name: System ASHRAE Chiller Log
Description
Resolution
Units
Current Time/Date:
XX:XX mmm dd, yyyy
Date / Time
XXX.X
Temperature
Chiller Mode:
Active Chilled Water Setpoint:
Enum
Active Hot Water Setpoint:
XXX.X
Temperature
Evap Entering Water Temp:
XXX.X
Temperature
Evap Leaving Water Temp:
XXX.X
Temperature
Evap Water Flow Switch Status:
Enum
Outdoor Air Temperature:
XXX.X
Temperature
Active Demand Limit Setpoint:
XXX
Percent
Table 40. Report name: Circuit ASHRAE Chiller Log
Description
Resolution
Circuit Mode:
CG-SVX17C-EN
Units
Enum
Suction Pressure:
XXX.X
Pressure
Suction Saturated Rfgt Temp:
XXX.X
Temperature
Evap Approach Temp:
XXX.X
Temperature
Discharge Pressure:
XXX.X
Pressure
Discharge Saturated Rfgt Temp:
XXX.X
Temperature
Cond Approach Temp:
XXX.X
Temperature
Compressor A Starts:
XXXX
Integer
Compressor A Running Time:
XX:XX
Hours: Minute
Compressor B Starts:
XXXX
Integer
Compressor B Running Time:
XX:XX
Hours: Minute
Compressor C Starts:
XXXX
Integer
Compressor C Running Time:
XX:XX
Hours: Minute
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Controls Interface
Power Up and Self Tests
Power-Up DynaView
On Power-Up DynaView will progress through three screens:
First Screen, Application Status, Boot Software P/N, Self Test and Application Time
Stamp.
This screen will display for 3-10 seconds. This screen will give the status of the
Application software, the Boot Software P/N, display Self Test results and display the
Application Part Number (CGAM 6200-0450-01). The contrast will also be adjustable from
this screen. The message “Selftest Passed” may be replaced with “Err2: RAM Error” or
“Err3: CRC Failure”
Display Formats
Temperature settings can be expressed in F or C, depending on Display Units settings.
Pressure settings can be expressed in psia, psig, kPaa (kPa absolute), or kPag (kPa gauge)
depending on Display Units settings.
Dashes (“-----”) appearing in a temperature or pressure report, indicates that the value
is invalid or not applicable.
Languages
The languages for DynaView will reside in the main processor. The main processor will
hold three languages, English, and two alternate languages. The service tool (TechView)
will load the main processor with user selected languages from a list of available
translations.
100
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TechView
TechView is the PC (laptop) based tool used for servicing Tracer CH530. Technicians that
make any chiller control modification or service any diagnostic with Tracer CH530 must
use a laptop running the software application “TechView.” TechView is a Trane application
developed to minimize chiller downtime and aid the technicians understanding of chiller
operation and service requirements.
Note: Important: Performing any Tracer CH530 service functions should be done only by
a properly trained service technician. Please contact your local Trane service
agency for assistance with any service requirements.
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TechView software is available via Trane.com.
(http://www.trane.com/commercial/software/tracerch530/)
This download site provides a user the TechView installation software and CH530 main
processor software that must be loaded onto your PC in order to service a CH530 main
processor. The TechView service tool is used to load software into the Tracer CH530 main
processor.
Minimum PC requirements to install and operate TechView
•
Pentium II or higher processor
•
128Mb RAM
•
1024 x 768 resolution of display
•
56K modem
•
9-pin RS-232 serial connection
•
Operating system - Windows 2000
•
Microsoft Office (MS Word, MS Access, MS Excel)
•
Parallel Port (25-pin) or USB Port
Note: TechView was designed for the preceding listed laptop configuration. Any
variation will have unknown results. Therefore, support for TechView is limited to
only those operating systems that meet the specific configuration listed here. Only
computers with a Pentium II class processor or better are supported; Intel Celeron,
AMD, or Cyrix processors have not been tested.
TechView is also used to perform any CH530 service or maintenance function. Servicing
a CH530 main processor includes:
102
•
Updating main processor software
•
Monitoring chiller operation
•
Viewing and resetting chiller diagnostics
•
Low Level Intelligent Device (LLID) replacement and binding
•
Main processor replacement and configuration modifications
•
Setpoint modifications
•
Service overrides
CG-SVX17C-EN
Controls Interface
Software Download
Instructions for First Time TechView Users
This information can also be found at http://www.trane.com/commercial/software/
tracerch530/.
1. Create a folder called “CH530” on your C:\ drive. You will select and use this folder
in subsequent steps so that downloaded files are easy to locate.
2. Download the Java Runtime installation utility file onto your PC in the CH530 folder
(please note that this does not install Java Runtime, it only downloads the installation
utility).
•
Click on the latest version of Java Runtime shown in the TechView Download
table.
•
Select “Save this program to disk” while downloading the files (do not select “Run
this program from its current location”).
3. Download the TechView installation utility file onto your PC in the CH530 folder
(please note that this does not install TechView, it only downloads the installation
utility).
•
Click on the latest version of TechView shown in the TechView Download table.
•
Select “Save this program to disk” while downloading the files (do not select “Run
this program from its current location”).
4. Remember where you downloaded the files (the “CH530” folder). You will need to
locate them to finish the installation process.
5. Proceed to “Main Processor Software Download” page and read the instructions to
download the latest version of main processor installation files.
Note: you will first select the chiller type to obtain the available file versions.
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Controls Interface
Unit View
Unit view is a summary for the system organized by chiller subsystem. This provides
an overall view of chiller operating parameters and gives you an “at-a-glance”
assessment of chiller operation.
The Control Panel tab displays important operating information for the unit and allows
you to change several key operating parameters. The panel is divided into four or more
sub-panels (depending on the number of circuits in the unit).
The Operating Mode tab displays the unit, circuit and compressor top level operating
modes.
The Hours and Starts tab displays the number a hours (total) a compressor has run and
the number of times the compressor has started. This window plays a key role in
evaluating maintenance requirements.
Upon successful Local Connect TechView will display UNIT VIEW.
CGAM Unit View is shown below:
Figure 43
104
Unit View
CG-SVX17C-EN
Controls Interface
The Unit View displays the system, control point name, value and unit of measure. It
reflects active setpoints and allows you to make changes.
Unit View also displays, in real time, all non-setpoint data organized by tabs. As data
changes on the chiller it is automatically updated in the Unit View.
Figure 44. Unit View Tabs
Circuit/Compressor Lockout
In order to lock out a circuit the user must go to the Unit View/Circuit 1 Manual Overrides
Tab and then select the Front Panel Lockout for circuit 1 and/or circuit 2. It is also possible
to lockout individual compressors from the same Circuit 1 Manual Overrides Tab in this
view.
Table 41. Unit View Tabs - Detail
Tab
Item Type Units
Min
Value
Max
Value
Default
Value
Unit Tab
Evaporator Entering Water Temperature
Status
Temp (°C)
Evaporator Leaving Water Temperature
Status
Temp (°C)
Evaporator Water Flow Switch Status
Status
Flow/No Flow
Outdoor Air Temperature
Status
Temp (°C)
Active Chilled Water Setpoint
Status
Temp (°C)
Active Chilled Water Setpoint Source
Status
BAS/External/Front
Panel/Auxiliary/
Schedule
Front Panel Chilled Water Setpoint
Setting
Temp (°C)
BAS Chilled Water Setpoint
Status
Temp (°C)
Local Schedule Chilled Water Setpoint
Status
Temp (°C)
External Chilled Water Setpoint
Status
Temp (°C)
Auxiliary Chilled Water Setpoint
Status
Temp (°C)
Filtered Chilled Water Setpoint
Status
Temp (°C)
Active Demand Limit Setpoint
Status
%
Active Demand Limit Setpoint Source
Status
BAS/External/Front
Panel/Auxiliary/
Schedule
Front Panel Demand Limit Setpoint
Setting
%
BAS Demand Limit Setpoint
Status
%
CG-SVX17C-EN
Capacity Control 20°C
Chilled Water
Setpoint
6.7°C
Smallest
Capacity Step
100
100
105
Controls Interface
Table 41. Unit View Tabs - Detail
Tab
Item Type Units
Local Schedule Demand Limit Setpoint
Status
%
External Demand Limit Setpoint
Status
%
Active Ice Building Command
Status
Off /On
Front Panel Ice Building Command
Setting
Auto
Active Ice Termination Setpoint
Status
Temp (°C)
Front Panel Ice Termination Setpoint
Setting
Temp (°C)
Manual Override Exists
Status
False/True
Setpoint Source
Setting
BAS/Ext/FP
Suction Pressure
Status
Pressure (kPa)
Discharge Pressure
Status
Pressure (kPa)
Suction Saturated Refrigerant Temperature
Status
Temp (°C)
Suction Temperature
Min
Value
Max
Value
Default
Value
No Request
Ice Building No Request
Request
-6.67°C
0°C
-2.78°C
Circuit 1 Tab
Status
Temp (°C)
Discharge Saturated Refrigerant Temperature Status
Temp (°C)
Discharge Temperature
Status
Temp (°C)
Condenser Approach Temperature
Status
Temp (°C)
Evaporator Approach Temperature
Status
Temp (°C)
EXV Position Status (%)
Status
%
Suction Pressure
Status
Pressure (kPa)
Discharge Pressure
Status
Pressure (kPa)
Suction Saturated Refrigerant Temperature
Status
Temp (°C)
Suction Temperature
Status
Temp (°C)
Suction Superheat
Status
Delta Temp (°C)
Circuit 2 Tab
Discharge Saturated Refrigerant Temperature Status
Temp (°C)
Discharge Temperature
Temp (°C)
Status
Condenser Approach Temp
Status
Temp (°C)
Evaporator Approach Temp
Status
Temp (°C)
EXV Position Status (%)
Status
%
Manual Capacity Control
Setting
Auto/Manual
Manual Capacity Control Command
Setting
Unload/Hold/Load
Clear Restart Inhibit
Setting
Maximum Restart Inhibit Time Remaining
Status
Time (Seconds to
MM:SS)
Manual Evaporator Pump Control
Setting
Auto/On
Manual Evaporator Pump Override Time
Status
Time (Seconds to
MM:SS)
Setting
Not Locked/Locked
Unit Manual Overrides Tab
Circuit 1 Manual Overrides Tab
Front Panel Lockout
106
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Table 41. Unit View Tabs - Detail
Tab
Item Type Units
Compressor A Lockout
Setting
Not Locked/Locked
Compressor B Lockout
Setting
Not Locked/Locked
Compressor C Lockout
Setting
Not Locked/Locked
Manual EXV Control
Setting
Auto/Manual
Manual EXV Control Percent
Setting
%
Compressor 1A Pumpdown Command
Setting
Abort
Compressor 1A Pumpdown Status
Status
Available/Not
Available/In
Progress/Inhibited
Compressor 1B Pumpdown Command
Setting
Abort/Start
Compressor 1B Pumpdown Status
Status
Available/Not
Available/In
Progress/Inhibited
Compressor 1C Pumpdown Command
Setting
Abort/Start
Compressor 1C Pumpdown Status
Status
Available/Not
Available/In
Progress/Inhibited
Suction Pressure
Status
Pressure (kPa)
Setting
Not Locked/Locked
Min
Value
Max
Value
Default
Value
Auto
Stop
Auto
Circuit 2 Manual Overrides Tab
Front Panel Lockout
Compressor A Lockout
Setting
Not Locked/Locked
Auto
Stop
Auto
Compressor B Lockout
Setting
Not Locked/Locked
Auto
Stop
Auto
Auto
Stop
Auto
68.9 kPa
110.3 kPa
101.4 kPa
Compressor C Lockout
Setting
Not Locked/Locked
Manual EXV Control
Setting
Auto/Manual
Manual EXV Control Percent
Setting
%
Compressor 2A Pumpdown Command
Setting
Abort/Start
Compressor 2A Pumpdown Status
Status
Available/Not
Available/In
Progress/Inhibited
Compressor 2B Pumpdown Command
Setting
Abort/Start
Compressor 2B Pumpdown Status
Status
Available/Not
Available/In
Progress/Inhibited
Compressor 2C Pumpdown Command
Setting
Abort/Start
Compressor 2C Pumpdown Status
Status
Available/Not
Available/In
Progress/Inhibited
Suction Pressure
Status
Pressure (kPa)
Local Atmospheric Pressure
Setting
Pressure (kPa)
Power-Up Start Delay
Setting
Feature Settings Tab
Operational Pumpdown Temperature Setpoint Setting
Time (Seconds)
0
600
0
Temp (°C)
-26°C
-10°C
-17.78°C
External Chilled Water Setpoint
Setting
Disable/Enable
Disabled
External Demand Limit Setpoint
Setting
Disable/Enable
Disabled
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Controls Interface
Table 41. Unit View Tabs - Detail
Tab
Item Type Units
Min
Value
Max
Value
Default
Value
Limit Annunciation Debounce Time
Setting
Time (Seconds)
0s
3600s
1200s
Maximum Capacity Annunciation Debounce
Time
Setting
Time (Seconds)
0s
3600s
1200s
Ice Building Feature
Setting
Disable/Enable
EXV Recalibration Time
Setting
Time (Seconds)
?
?
Cooling Design Delta Temperature
Setting
Delta Temp (°C)
1°C
12°C
5.56°C
Differential To Start
Setting
Delta Temp (°C)
1°C
6°C
2.78°C
Differential To Stop
Setting
Delta Temp (°C)
1°C
7°C
2.78°C
Staging Deadband Adjustment
Setting
Delta Temp (°C)
-1°C
5°C
0°C
Circuit Staging Option
Setting
Balance Strts-Hrs/
Circuit 1 Lead/
Circuit 2 Lead
Balance
Starts
Hours
Compressor Staging Option
Setting
Fixed Sequence/
Balanced Strts-Hrs
Fixed
Sequence
Compressor Start Delay Time
Setting
Time (Seconds)
0s
600 s
60 s
Capacity Control Softload Time
Setting
Time (Seconds)
0s
3600 s
900 s
-20°C
20°C
Disabled
Capacity Control Tab
Limits Tab
Cooling Low Ambient Lockout
Setting
Disable/Enable
Cooling Low Ambient Lockout Setpoint
Setting
Temp (°C)
Enabled
-10°C
Discharge Pressure Limit Setpoint
Setting
%
80%
120%
85%
Discharge Pressure Limit Unload Setpoint
Setting
%
90%
120%
97%
Restart Inhibit Free Starts
Setting
Starts
2
Restart Inhibit Start To Start Time
Setting
Time (Minutes)
6 min
Chilled Water Reset Type
Setting
Disable/Return/
Outdoor Air/
Constant
Return Reset Ratio
Setting
%
10%
120%
50%
Return Start Reset
Setting
Delta Temp (°C)
2.22°C
16.67°C
5.55°C
Chilled Water Reset Tab
Return Maximum Reset
Setting
Delta Temp (°C)
0°C
11.11°C
2.78°C
Outdoor Reset Ratio
Setting
%
-80%
80%
10%
Outdoor Start Reset
Setting
Temp (°C)
10°C
54.44°C
32.22°C
Outdoor Maximum Reset
Setting
Delta Temp (°C)
0°C
11.11°C
2.78°C
Cooling Design Delta Temperature
Setting
Delta Temp (°C)
1°C
12°C
5.56°C
Evaporator Water Flow Switch Status
Status
No Flow/Flow
Evap Pump Inverter 1 Run Command
Status
Off/On
Evaporator Pump 1 Command
Status
Off/On
Evaporator Pump 2 Command
Status
Off/On
Evap Pump Off Delay
Setting
Time (Minutes)
0 min
30 min
1 min
Evap Flow Overdue Wait Time
Setting
Time (Seconds)
300 s
3600 s
1200 s
Pump Control Tab
108
CG-SVX17C-EN
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Table 41. Unit View Tabs - Detail
Min
Value
Max
Value
Default
Value
Tab
Item Type Units
High Evaporator Water Temp Setpoint
Setting
Temp (°C)
Leaving Water Temp Cutout
Setting
Temp (°C)
-18.33°C
2.22°C
2.22°C
Low Refrigerant Temperature Cutout
Setting
Temp (°C)
-28.33°C
2.22°C
-5.56°C
55°C
Freeze Avoidance Tab
Evaporator Pump Freeze Avoidance
Setting
Disable/Enable
Enabled
Evap Pump Freeze Avoidance Adaptive
Learning
Setting
Fixed/Adaptive
Enabled
Evap Pump Freeze Avoidance Time Constant
Setting
Time (minutes)
2 min
360 min
10 min
Evap Pump Freeze Avoidance Temp Margin
Setting
Delta Temp (°C)
0°C
5°C
2°C
Chiller Running Time
Status
Time (Sec to HH:MM)
Compressor 1A Starts
Status
Starts
Compressor 1A Running Time
Status
Time (Sec to HH:MM)
Compressor 1B Starts
Status
Starts
Compressor 1B Running Time
Status
Time (Sec to HH:MM)
Compressor 1C Starts
Status
Starts
Starts and Hours Tab
Compressor 1C Running Time
Status
Time (Sec to HH:MM)
Compressor 2A Starts
Status
Starts
Compressor 2A Running Time
Status
Time (Sec to HH:MM)
Compressor 2B Starts
Status
Starts
Compressor 2B Running Time
Status
Time (Sec to HH:MM)
Compressor 2C Starts
Status
Starts
Compressor 2C Running Time
Status
Time (Sec to HH:MM)
Evaporator Water Pump 1 Starts
Status
Starts
Evaporator Water Pump 1 Running Time
Status
Time (Sec to HH:MM)
Evaporator Water Pump 1 Starts
Status
Starts
Evaporator Water Pump 1 Running Time
Status
Time (Sec to HH:MM)
Partial heat recovery (PHR) Fan Control
Setting
Disable/Enable
PHR Leaving Water Temperature Setpoint
Setting
Temp (°C)
PHR Leaving Water Temperature Adjustment
Setting
Delta Temp (°C)
Generic Temp Sensor
Status
Temp (°C)
Generic Pressure Sensor
Status
Pressure (kPa)
Heat Recovery Tab
Generic Monitoring Tab
Generic Analog Monitor
Status
Current (mA)
Generic Low Volt Monitor
Setting
Open/Closed
Generic High Volt Monitor
Setting
Off/On
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109
Controls Interface
The items that can be modified show up in white. The items that cannot be modified show
up in gray.
Figure 45. Fields in White
To change the setpoint enter a new value for the setpoint into the text field.
Figure 46. Change Setpoint
If the entered value is outside the given range, the background turns red.
Figure 47. Change Out of Range
If the value entered is not valid, an error message will display and the change will not
occur.
Figure 48. Setpoint Change Failed
110
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Controls Interface
Diagnostics View
This window lists the active and inactive (history) diagnostics. There can be up to 60
diagnostics, both active and historic. For example, if there were 5 active diagnostics,
the possible number of historic diagnostics would be 55. You can also reset active
diagnostics here, (i.e., transfer active diagnostics to history and allow the chiller to
regenerate any active diagnostics).
Resetting the active diagnostics may cause the chiller to resume operation.
The Active and History diagnostics have separate tabs. A button to reset the active
diagnostics displays when either tab is selected.
.
Figure 49
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Diagnostic View
111
Controls Interface
Configuration View
This view is under the CH530 tab and displays the active configuration and allows you
to make changes to the unit configuration.
Figure 50. Configuration View - CH530 Tab
Configuration View allows you to define the chiller's components, ratings, and
configuration settings. These are all values that determine the required installed
devices, and how the chiller application is run in the main processor. For example, a
user may set an option to be installed with Configuration View, which will require
devices to be bound using Binding View. And when the main processor runs the chiller
application, the appropriate steps are taken to monitor required inputs and control
necessary outputs.
Any changes made in the Configuration View, on any of the tabs, will modify the chiller
configuration when you click on the Load Configuration button (located at the base of
the window). The Load Configuration button uploads the new configuration settings
into the main processor.
Selecting the Undo All button will undo any configuration setting changes made during
the present TechView connection and since the last time the Load Configuration button
was selected.
112
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Controls Interface
Table 42. Configuration View Items - CH530 Tab
Item
Basic Product Line
Unit Capacity
Unit Design Sequence
Manufacturing Location
Unit Type
Sound Package
Supply Power Frequency
Unit Application
Heat Recovery
Evaporator Pump Control
CG-SVX17C-EN
Description
CGAM - Air-Cooled Scroll Packaged Chiller
CXAM - Air-Cooled Scroll Heat Pump (TAI, EPL only)
020 Nominal Tons
023 Nominal Tons (TAI, EPL only)
026 Nominal Tons
030 Nominal Tons
035 Nominal Tons
039 Nominal Tons (EPL only)
040 Nominal Tons
045 Nominal Tons (EPL only)
046 Nominal Tons (TAI, EPL only)
052 Nominal Tons
060 Nominal Tons
070 Nominal Tons
080 Nominal Tons
090 Nominal Tons
100 Nominal Tons
110 Nominal Tons
120 Nominal Tons
Factory Assigned
Epinal, France
Pueblo, USA
Taicang, China
Curitiba, Brazil
Standard Efficiency/Performance (EPL only)
High Efficiency/Performance
High Duty (EPL and TAI only)
Standard Noise
Low Noise
60 Hz
50 Hz
Standard Ambient (EPL and TAI only)
Low Ambient (EPL and TAI only)
High Ambient (EPL and TAI only)
Wide Ambient
No Heat Recovery
Partial Heat Recovery w/ Fan Control
Partial Heat Recovery w/o Fan Control (EPL and TAI only)
No Pump Flow Control
Single Pump Fixed Speed (TAI, EPL only)
Single Pump Variable Speed (TAI, EPL only)
Dual Pump Fixed Speed (TAI, EPL only)
Dual Pump Variable Speed
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Controls Interface
A couple of additional tabs in Configuration View allow you to change other unit
configuration options using the Options tab and the Options Setup tab. The features that
are installed on the Options Tab will control what is displayed on the Options Setup tab.
Figure 51. Configuration View - Options Tab
Figure 52. Configuration View - Options Setup Tab
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Controls Interface
Software View
Software view allows you to verify the version of chiller software currently running on
the EasyView or DynaView and download a new version of chiller software to the
EasyView or DynaView.
You can also add up to two available languages to load into the DynaView. Loading an
alternate language file allows the DynaView to display its text in the selected alternate
language, English will always be available.
Figure 53. Software View
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115
Controls Interface
Binding View
Binding View allows you to assess the status of the network and all the devices
connected as a whole, or the status of individual devices by using status icons and
function buttons.
Binding View is essentially a table depicting what devices and options are actually
discovered on the network bus (and their communication status) versus what is
required to support the configuration defined by the feature codes and categories.
Binding View allows you to add, remove, modify, verify, and reassign devices and
options in order to match the configuration requirements.
Whenever a device is installed, it must be correctly configured to communicate and to
function as intended. This process is called binding. Some features of Binding View are
intended to serve a second purpose; that is diagnosing problems with communication
among the devices.
Figure 54. Binding View
116
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Controls Interface
Replacing or Adding Devices
If a device is communicating but incorrectly configured, it might not be necessary to
replace it. If the problem with the device is related to communication, attempt to rebind
it, and if the device becomes correctly configured, it will then communicate properly.
If a device that needs to be replaced is still communicating, it should be unbound.
Otherwise, it will be necessary to rebuild the CH530 network image for Binding View to
discover that it has been removed. An unbound device stops communicating and
allows a new device to be bound in its place.
It is good practice to turn the power off while detaching and attaching devices to the
CH530 network. Be sure to keep power on the service tool computer. After power is
restored to the CH530 network, the reconnect function in Binding View restores
communication with the network. If the service tool computer is turned off, you must
restart TechView and Binding View.
If a device is not communicating, the binding function displays a window to request
manual selection of the device to be bound. Previously-selected devices are deselected
when the function starts. When manual selection is confirmed, exactly one device must
be selected; if it is the correct type, it is bound. If the desired device cannot be selected
or if multiple devices are accidentally selected, you can close the manual selection
window by clicking on No and repeat the bind function.
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117
Pre-Start Checkout
When installation is complete, but prior to putting the unit into service, the following prestart procedures must be reviewed and verified correct:
WARNING
Hazardous Voltage!
Disconnect all electric power, including remote disconnects before servicing. Follow
proper lockout/tagout procedures to ensure the power can not be inadvertently
energized. Failure to disconnect power before servicing could result in death or serious
injury
•
Inspect all wiring connections to be sure they are clean and tight.
•
Verify that all refrigerant valves are “OPEN”
CAUTION
Compressor Damage!
Do not operate the unit with the compressor, oil discharge, liquid line service valves
and the manual shutoff on the refrigerant supply to the auxiliary coolers “CLOSED”.
Failure to “OPEN” all valves may cause serious compressor damage.
•
Check the power supply voltage to the unit at the main power fused-disconnect
switch. Voltage must be within the voltage utilization range stamped on the unit
nameplate. Voltage imbalance must not exceed 2 percent. Refer to Paragraph.
•
Check the unit power phasing to be sure that it has been installed in an “ABC”
sequence.
WARNING
Live Electrical Components!
During installation, testing, servicing and troubleshooting of this product, it may be
necessary to work with live electrical components. Have a qualified licensed electrician
or other individual who has been properly trained in handling live electrical
components perform these tasks. Failure to follow all electrical safety precautions
when exposed to live electrical components could result in death or serious injury.
•
Fill the evaporator chilled water circuit. Vent the system while it is being filled. Open
the vents on the top of the evaporator during filling and close when filling is
completed.
CAUTION
Proper Water Treatment!
The use of untreated or improperly treated water in the CGAM may result in scaling,
erosion, corrosion, algae or slime. It is recommended that the services of a qualified
water treatment specialist be engaged to determine what water treatment, if any, is
required. Trane assumes no responsibility for equipment failures which result from
untreated or improperly treated water, or saline or brackish water.
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Pre-Start Checkout
•
Close the fused-disconnect switch(es) that supplies power to the chilled water pump
starter.
WARNING
Hazardous Voltage!
Disconnect all electric power, including remote disconnects before servicing. Follow
proper lockout/tagout procedures to ensure the power can not be inadvertently
energized. Failure to disconnect power before servicing could result in death or serious
injury.
•
Start the chilled water pump to begin circulation of the water. Inspect all piping for
leakage and make any necessary repairs.
•
With water circulating through the system, adjust water flow and check water
pressure drop through the evaporator.
•
Prove all Interlock and Interconnecting Wiring Interlock and External.
•
Check and set, as required, all CH530 Menu Items.
•
Stop the chilled water pump.
Unit Voltage Power Supply
WARNING
Live Electrical Components!
During installation, testing, servicing and troubleshooting of this product, it may be
necessary to work with live electrical components. Have a qualified licensed electrician
or other individual who has been properly trained in handling live electrical
components perform these tasks. Failure to follow all electrical safety precautions
when exposed to live electrical components could result in death or serious injury.
Voltage to the unit must meet the criteria given in. Measure each leg of the supply voltage
at the unit's main power fused-disconnect. If the measured voltage on any leg is not
within specified range, notify the supplier of the power and correct the situation before
operating the unit.
CAUTION
Equipment Damage!
Inadequate voltage to the unit may cause control components to malfunction and
shorten the life of relay contact, compressor motors and contactors.
Unit Voltage Imbalance
Excessive voltage imbalance between the phases of a three-phase system can cause
motors to overheat and eventually fail. The maximum allowable imbalance is 2 percent.
Voltage imbalance is determined using the following calculations:
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119
Pre-Start Checkout
1V x
= phase with greatest difference from Vave (without regard to sign)
For example, if the three measured voltages are 221, 230, and 227 volts, the average
would be:
The percentage of imbalance is then:
This exceeds the maximum allowable (2%) by 0.2 percent.
Unit Voltage Phasing
It is important that proper rotation of the compressors be established before the unit is
started. Proper motor rotation requires confirmation of the electrical phase sequence of
the power supply. The motor is internally connected for clockwise rotation with the
incoming power supply phased A, B, C.
Basically, voltages generated in each phase of a polyphase alternator or circuit are called
phase voltages. In a three-phase circuit, three sine wave voltages are generated, differing
in phase by 120 electrical degrees. The order in which the three voltages of a three-phase
system succeed one another is called phase sequence or phase rotation. This is
determined by the direction of rotation of the alternator. When rotation is clockwise,
phase sequence is usually called “ABC”, when counterclockwise, “CBA”.
This direction may be reversed outside the alternator by interchanging any two of the line
wires. It is this possible interchange of wiring that makes a phase sequence indicator
necessary if the operator is to quickly determine the phase rotation of the motor.
Proper compressor motor electrical phasing can be quickly determined and corrected
before starting the unit. Use a quality instrument, such as the Associated Research Model
45 Phase Sequence Indicator.
1. Press the Stop key on the Clear Language Display.
2. Open the electrical disconnect or circuit protection switch that provides line power to
the line power terminal block(s) in the starter panel (or to the unitmounted
disconnect).
120
CG-SVX17C-EN
Pre-Start Checkout
3. Connect the phase sequence indicator leads to the line power terminal block, as
follows:
Phase Sea. Lead
Terminal
Black (Phase A) ......................L1
Red (Phase B) ........................L2
Yellow (Phase C) .....................L3
4. Turn power on by closing the unit supply power fused-disconnect switch.
5. Read the phase sequence on the indicator. The “ABC” LED on the face of the phase
indicator will glow if phase is “ABC”.
6. If the “CBA” indicator glows instead, open the unit main power disconnect and switch
two line leads on the line power terminal block(s) (or the unit mounted disconnect).
Reclose the main power disconnect and recheck the phasing.
CAUTION
Equipment Damage!
Do not interchange any load leads that are from the unit contactors or the motor
terminals.
7.
Reopen the unit disconnect and disconnect the phase indicator.
WARNING
Hazardous Voltage!
Disconnect all electric power, including remote disconnects before servicing. Follow
proper lockout/tagout procedures to ensure the power can not be inadvertently
energized. Failure to disconnect power before servicing could result in death or serious
injury.
Water System
Flow Rates
Establish a balanced chilled water flow through the evaporator. The flow rates should fall
between the minimum and maximum values. Chilled water flow rates below the
minimum values will result in laminar flow, which reduces heat transfer and causes
either loss of EXV control or repeated nuisance, low temperature cutouts. Flow rates that
are too high can cause tube erosion.
Pressure Drop
Measure water pressure drop through the evaporator at the field-installed pressure taps
on the system water piping. Use the same gauge for each measurement. Measure flow
at the field-installed supply and return. This will include valves, strainers, and fittings in
the pressure drop readings.
Pressure drop readings should be approximately those shown in the Pressure Drop
Charts in the Installation-Mechanical section.
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121
122
Ship Date
Date
Sales Order #
Unit DL # (special units)
13.) Verify all refrigerant and oil valves are open/back seated
12.) Shipping hardware for compressors removed
10.) Prove chilled water side Interlock and Interconnecting Wiring Interlock and externals (chilled water pump)
11.) Field installed control wiring landed on correct terminals (external start/stop, emergency stop, chilled water
reset…)
9.) All wiring connections tight
8.) All automation and remote controls installed/wired
7.) Unit properly grounded
6.) Copper power wiring meets sizing requirement in job submittal
5.) Unit power phasing (A-B-C sequence) proper for compressor rotation
4.) Correct voltage supplied to unit and electric heaters (imbalance not to exceed 2%)
3.) Crankcase heaters working for 24 hours prior to arrival of Trane technician performing start up
2.) Unit exterior inspected
1.) Unit clearances adequate for service and to avoid air recirculation etc.
Except where noted; it is implied that the technician is to use this checklist for inspection / verification of prior task
completed by the general contractor at installation. Use the line item content to also record the associated values onto
the Trane unitary packaged equipment log.
Technician
Model #
Job Location
Starting Sales Office
Serial #
Job Name
***This checklist is not intended to be a substitution for the contractors installation instruction.
This checklist is intended to be a guide for the Trane technician just prior to unit 'start-up'. Many of the
recommended checks and actions could expose the technician to electrical and mechanical hazards.
Refer to the appropriate sections in the unit manual for appropriate procedures, component specifications
and safety instructions.
CGAM Mandatory Start Up Checklist
Complete
Pre-Start Checkout
Start Up Checklist
Figure 55. Start Up Checklist
CG-SVX17C-EN
CG-SVX17C-EN
***For content inquires contact Trane Tech Services
33.) Inspect fans again after being under load to ensure no signs or rubbing exist
34.) Verify the chilled water pump runs for at least 1 minute after the chiller is commanded to stop (for normal
chilled water systems)
Comments:
32.) Press stop key
31.) Operating log completed
30.) Compressor operation normal and within amperage rating
29.) Confirm Superheat and subcooling values are normal
28.) Check the evaporator and the condenser refrigerant pressure under Refrigerant Report on CH530 TechView
27.) Check the EXV sight glasses after sufficient time has elapsed allowing entering and leaving water to stabilize
26.) Press AUTO key. The unit will start if the chiller control calls for cooling and the safety interlocks are closed
Start unit
25.) Rotate fans before starting unit to inspect for potential audible and visual signs of rubbing
24.) All coil fins inspected and straightened
23.) All panels/doors secured prior to start-up
22.) Fan amperages within nameplate specs
21.) Verify all CH530 Menu Items on DynaView and KestrelView
20.) Return chilled water pump to auto
19.) Adjust the chilled water flow switch for proper operation
17.) Start the chilled water pump to begin circulation of the water. Inspect piping for leaks and repair as necessary
18.) With water circulating through the system, adjust water flow and check water pressure drop through
evaporator
16.) Close the fused-disconnect switch(es) that supplies power to the chilled water pump starter
15.) Verify chilled water strainer is clean and free of debris and evaporator chilled water circuits are filled
14.) Compressor oil levels (1/2 -3/4 high in glass) proper
Pre-Start Checkout
123
Unit Start-Up Procedures
Sequence of Operation
Power Up
The Power up chart shows the respective DynaView screens during a power up of the
main processor. This process takes from 30 to 45 seconds depending on the number of
installed Options. On all power ups, the software model will always transition through
the 'Stopped' Software state independent of the last mode. If the last mode before power
down was 'Auto', the transition from 'Stopped' to 'Starting' occurs, but it is not apparent
to the user.
Figure 56. Power Up
Power Up to Starting
The Power up to starting diagram shows the timing from a power up event to energizing
the compressor. The shortest allowable time would be under the following conditions:
1. No motor restart inhibit
2. Evaporator Water flowing
3. Power up Start Delay setpoint set to 0 minutes
4. Adjustable Stop to Start Timer set to 5 seconds
5. Need to cool
The above conditions would allow for a minimum power up to starting compressor time
of 95 seconds.
124
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Unit Start-Up Procedures
Figure 57. Power Up to Starting
CG-SVX17C-EN
125
Unit Start-Up Procedures
Stopped to Starting:
The stopped to starting diagram shows the timing from a stopped mode to energizing
the compressor. The shortest allowable time would be under the following conditions:
1. No motor restart inhibit
2. Evaporator Water flowing
3. Power up Start Delay Timer has expired
4. Adjustable Stop to Start Timer has expired
5. Need to cool
The above conditions would allow the compressor to start in 60 seconds.
CAUTION
Refrigerant!
If both suction and discharge pressures are low but sub-cooling is normal, a problem
other than refrigerant shortage exists. Do not add refrigerant, as this may result in
overcharging the circuit.
Use only refrigerants specified on the unit nameplate (R-410A) and Trane OIL00079 (1
quart) or OIL00080 (1 gallon). Failure to do so may cause compressor damage and
improper unit operation.
CAUTION
Equipment Damage!
Ensure that the oil sump heaters have been operating for a minimum of 24 hours
before starting. Failure to do so may result in equipment damage.
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Unit Start-Up Procedures
Figure 58. Chiller State Chart
Start-Up
CAUTION
Equipment Damage!
Ensure that the oil sump heaters have been operating for a minimum of 24 hours
before starting. Failure to do so may result in equipment damage.
If the pre-start checkout, has been completed, the unit is ready to start.
1. Press the STOP key on the CH530.
2. As necessary, adjust the setpoint values in the CH530 menus using TechView.
3. Close the fused-disconnect switch for the chilled water pump. Energize the pump(s)
to start water circulation.
4. Check the service valves on the discharge line, suction line, oil line and liquid line for
each circuit. These valves must be open (backseated) before starting the
compressors.
CAUTION
Compressor Damage!
Catastrophic damage to the compressor will occur if the oil line shut off valve or the
isolation valves are left closed on unit start-up.
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127
Unit Start-Up Procedures
5. Press the AUTO key. If the chiller control calls for cooling and all safety interlocks are
closed, the unit will start. The compressor(s) will load and unload in response to the
leaving chilled water temperature.
6. Verify that the chilled water pump runs for at least one minute after the chiller is
commanded to stop (for normal chilled water systems).
Note: Once the system has been operating for approximately 30 minutes and has
become stabilized, complete the remaining start-up procedures, as follows:
7.
Check the evaporator refrigerant pressure and the condenser refrigerant pressure
under Refrigerant Report on the CH530 TechView. The pressures are referenced to sea
level (14.6960 psia).
8. Check the EXV sight glasses after sufficient time has elapsed to stabilize the chiller.
The refrigerant flow past the sight glasses should be clear. Bubbles in the refrigerant
indicate either low refrigerant charge or excessive pressure drop in the liquid line or
a stuck open expansion valve. A restriction in the line can sometimes be identified by
a noticeable temperature differential between the two sides of the restriction. Frost
will often form on the line at this point. Proper refrigerant charges are shown in the
General Data tables.
Note: Important! A clear sight glass alone does not mean that the system is properly
charged. Also check system subcooling, liquid level control and unit operating
pressures.
9. Measure the system subcooling.
10. A shortage of refrigerant is indicated if operating pressures are low and subcooling
is also low. If the operating pressures, sight glass, superheat and subcooling readings
indicate a refrigerant shortage, gas-charge refrigerant into each circuit, as required.
With the unit running, add refrigerant vapor by connecting the charging line to the
suction service valve and charging through the backseat port until operating
conditions become normal.
Print out a Chiller Service Report from TechView to file a start-up claim and to keep for
reference with the chiller.
Seasonal Unit Start-Up Procedure
1. Close all valves and re-install the drain plugs in the evaporator and condenser heads.
2. Service the auxiliary equipment according to the start-up/maintenance instructions
provided by the respective equipment manufacturers.
3. Vent and fill the cooling tower, if used, as well as the condenser and piping. At this
point, all air must be removed from the system (including each pass). Close the vents
in the evaporator chilled water circuits.
4. Open all the valves in the evaporator chilled water circuits.
5. If the evaporator was previously drained, vent and fill the evaporator and chilled
water circuit. When all air is removed from the system (including each pass), install
the vent plugs in the evaporator water boxes.
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CG-SVX17C-EN
Unit Start-Up Procedures
CAUTION
Equipment Damage!
Ensure that the oil sump heaters have been operating for a minimum of 24 hours
before starting. Failure to do so may result in equipment damage.
CAUTION
Compressor Damage!
Catastrophic damage to the compressor will occur if the oil line shut off valve or the
isolation valves are left closed on unit start-up.
Limit Conditions
CH530 will automatically limit certain operating parameters during startup and run
modes to maintain optimum chiller performance and prevent nuisance diagnostic trips.
These limit conditions are noted in Figure 43, p. 129.
Table 43. Limit Conditions
Running - Limited
The chiller, circuit, and compressor are currently running, but the operation of the
chiller/compressor is being actively limited by the controls. Further information is
provided by the sub-mode.
Capacity Limited by High
Cond Press
The circuit is experiencing condenser pressures at or near the condenser limit setting. The
compressor will be unloaded to prevent exceeding the limits.
Capacity Limited by Low
Evap Rfgt Temp
The circuit is experiencing saturated evaporator temperatures at or near the Low
Refrigerant Temperature Cutout setting. The compressors will be unloaded to prevent
tripping.
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129
Unit Shutdown
Normal Shutdown to Stopped
The Normal Shutdown diagram shows the Transition from Running through a Normal
(friendly) Shutdown. The Dashed lines on the top attempt to show the final mode if you
enter the stop via various inputs.
Figure 59. Normal Shutdown
130
CG-SVX17C-EN
Unit Shutdown
Seasonal Unit Shutdown
1. Perform the normal unit stop sequence using the <Stop> key.
Note: Do not open the starter disconnect switch. This must remain closed to provide
control power from the control power transformer to the oil heaters.
2. Verify that the chilled water and condenser water pumps are cycled off. If desired,
open the disconnect switches to the pumps.
3. Drain the condenser piping and cooling tower, if desired.
4. Remove the drain and vent plugs from the condenser headers to drain the condenser.
5. Verify that the oil heaters are working.
6. Once the unit is secured, perform the maintenance identified in the following
sections.
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131
Maintenance
Periodic Maintenance
General
Perform all maintenance procedures and inspection at the recommended intervals. This
will prolong the life of the chiller and minimize the possibility of malfunctions.
Use an “Operator’s Log” to record the unit’s operating history. The log serves as a
valuable diagnostic tool for service personnel. By observing trends in operating
conditions, an operator can anticipate and prevent problem situations before they occur.
If the unit is not operating properly during maintenance inspections, consult the
“Diagnostic and Troubleshooting” section of this manual.
Weekly Maintenance
After the chiller has been operating for approximately 30 minutes and the system has
stabilized, check the operating pressures and temperatures and complete the following
checks:
Check the evaporator and condenser refrigerant pressures in the Refrigerant Report
menu of the CH530 display. Pressures are referenced at sea level (14.6960 psia).
Check the electronic expansion valve sight glasses. (Note: The electronic expansion valve
is commanded closed at unit shutdown and if the unit is off, there will be no refrigerant
flow through the sight glasses. Only when a circuit is running will refrigerant flow be
present.) The refrigerant flow through the sight glasses should be clear. Bubbles in the
refrigerant indicate either low refrigerant charge or excessive pressure drop in the liquid
line. A restriction in the line can sometimes be identified by a noticeable temperature
differential between the two sides of the restriction. Frost may often form on the liquid
line at this point. Correct refrigerant charges are shown in the General Data Tables.
NOTICE: A clear sight glass alone does not mean that the system is
properly charged. Also check the system superheat, subcooling and unit
operating pressures.
NOTICE: Use only manifold gauge sets designed for use with R-410A
refrigerant. Use only recovery units and cylinders designed for the
higher pressure of R-410A refrigerant and POE oil.
NOTICE: R-410A must be charged in a liquid state.
Check the system superheat, subcooling, evaporator temperature drop (Delta-T),
evaporator water flow, evaporator approach temperature, compressor discharge
superheat, and compressor RLA.
132
CG-SVX17C-EN
Maintenance
Normal operating conditions at ARI Conditions are:
•
Evaporator pressure: 120 psig
•
Evaporator Approach: 5-10 F
•
Evaporator Superheat: 12 F
•
Electronic Expansion Valve: 40-50 percent open
•
Evaporator Temperature Drop (Delta-T): 10 F
•
Compressor Discharge Temperature: 63 F or more
•
Condensing Pressure: 420-440 psig
•
Condensing Approach Temperature: 25 F
•
System Subcooling: 15-20 F
•
Compressor RLA: 100 percent
If operating pressures and sight glass conditions seem to indicate a refrigerant shortage,
measure the system superheat and subcooling. Refer to “System Superheat” and
“System Subcooling.”
If operating conditions indicate a refrigerant overcharge, remove refrigerant at the liquid
line service valve. Allow refrigerant to escape slowly to minimize oil loss. Use a
refrigerant recovery cylinder and do not discharge refrigerant into the atmosphere.
WARNING: Do not allow refrigerant to directly contact skin as injury
from frostbite may result.
Inspect the entire system for unusual conditions and inspect the condenser coils for dirt
and debris. If the coils are dirty, refer to “Coil Cleaning” in this manual.
Monthly Maintenance
Complete all weekly maintenance procedures.
Measure and record the evaporator superheat. Refer to “Evaporator Superheat.”
Measure and record the system subcooling. Refer to “System Subcooling.”
Manually rotate the condenser fans to ensure that there is proper clearance on the fan
shroud openings.
WARNING: Position all electrical disconnects in the “OPEN” position
and lock them to prevent injury of death due to electrical shock or
moving parts.
CG-SVX17C-EN
133
Maintenance
Annual Maintenance
Complete all weekly and monthly maintenance checks.
Check the oil level and refrigerant charge. Routine changing of oil is not required.
Have a qualified laboratory perform a compressor oil analysis to determine system
moisture content and acid level. This analysis is a valuable diagnostic tool.
Contact a qualified service provider to leak test the chiller, check operating and safety
controls, and to inspect electrical components for proper operation. Leak testing my be
accomplished using soap solution or with electronic or ultrasonic leak detectors.
Inspect all piping components for leaks and damage. Clean all water strainers.
NOTICE: If the CGAM chiller evaporator or evaporator water piping is
drained of water, the evaporator immersion heater must be deenergized. Failure to de-energize the heater will cause it to burn out.
Clean and repaint any components that show corrosion.
Clean the condenser coils. Refer to “Coil Cleaning” in this manual.
WARNING: Position all electrical disconnects in the “OPEN” position
and lock them to prevent injury of death due to electrical shock or
moving parts.
Clean the condenser fans. Check the fan assemblies for proper clearance in the fan
shroud openings and for motor shaft misalignment or abnormal end-play, vibration and
noise.
Compressor Service Information
Compressor Electrical Connections
It is very important that CSHD compressors used in Trane Model CGAM chillers are wired
correctly for proper rotation. These compressors will not tolerate reverse rotation. Verify
correct rotation/phasing using a rotation meter. Proper phasing is clockwise, A-B-C. If
wired incorrectly a CSHD compressor will make excessive noise, will not pump and will
draw about half the normal current. It will also become very hot if allowed to run for an
extended period.
NOTICE: Do not “bump” the compressor to check rotation as incorrect
rotation could cause compressor motor failure in as little as 4 to 5
seconds!
134
CG-SVX17C-EN
Maintenance
It is also very important that CSHN compressors used in Trane Model CGAM chillers are
wired correctly for proper rotation. Correct rotation of CSHN compressors is also
clockwise, with A-B-C phasing. Improper rotation of the CSHN compressors is indicated
by a compressor module trip, noisy operation, no pressure difference on manifold
gauges and low amp draw.
Oil Level
Oil should also be visible in the sight glass when the compressor is running. When
operating, each compressor in a tandem or trio set may have a different oil level.
To check compressor oil level, refer to the label near the compressor sight glass. The
compressor(s) must be off. Wait three minutes. With tandem or triple compressors the
oil level will equalize after shutdown. Compressor oil level should be clearly visible within
the sight glass when the compressors are off.
Oil Fill, Removal and Capacity
The Model CSHN compressors have an oil charging valve with a dip tube that goes to the
bottom of the compressor. This can be used to add or remove oil from the compressor.
Model CSHD compressors have a Schrader valve in the middle of the compressor which
is used to add oil. To remove oil from these compressors, the system refrigerant charge
must be removed and then the oil can be removed using a suction style hand pump and
tube in the oil equalizer tube fitting. Oil can also be added to these compressors through
the oil equalizer tube fitting. Care must be taken to prevent moisture from entering the
system when adding oil.
Compressor Oil Capacity
CSHD 125, 161 — 7 Pints
CSHN 184 —14.2 Pints
CSHN 250 —15.2 Pints
CSHN 315 —16.2 Pints
CSHN 374 —17.2 Pints
Use only Trane OIL00079 (1 quart) or OIL00080 (1 gallon). These are the same oil, but
different container sizes. Do not use any other POE oil.
NOTICE: Never reuse oil.
Oil Testing
Use Trane Oil Testing Kit KIT06815 only for testing lubricating oil in the Model CGAM
chiller. Note that the POE oil used in this product is very hygroscopic and easily absorbs
and retains moisture. The acceptable moisture content is less than 100 ppm and
acceptable acid level is less than 0.5 TAN. Note that refrigerant and moisture is very
CG-SVX17C-EN
135
Maintenance
difficult to remove from this oil using vacuum. Also note that once the seal on a container
of POE oil is opened, the oil must be used.
In the event of a compressor failure, always test the oil with an acid test kit to determine
whether the compressor failure was mechanical or electrical. This is important because
it dictates correct cleanup procedure.
Compressor Operational Pump Down
The operational pump down is used to manage the refrigerant charge and prevent liquid
slugging into the compressors, oil dilution and oil starvation. The pump down will be
completed by the last operating compressor in the refrigerant circuit and occurs during
normal shutdown conditions. The electronic expansion valve will close.
The operational pump down sequence will end when:
•
Saturated evaporator temperature drops below the operational pump down set point
•
Compressor pressure differential exceeds 348 psid (Condensing Pressure (Evaporator Pressure x 2.9)
•
When the operational pump down time expires (60 x (100/circuit capacity %))
•
An immediate shutdown diagnostic occurs
•
A pressure transducer fails
Compressor Service Pump Down Procedure
The Service Pump down procedure is used to store the Model CGAM refrigerant in the
condenser. The condenser is sized to hold the entire refrigerant charge.
Procedure:
•
Select compressor to use for pump down.
•
All chiller safeties remain in effect.
•
Evaporator water flow must be proven
•
Condenser fans operate normally
•
Manually close refrigerant liquid line service valve
Service pump down is complete when:
•
Service pump down time expires (60 x (100/circuit capacity %))
•
Saturated evaporator pressure falls below Low Pressure Cutout x1.15 for one second
After pump down terminates, the MP automatically puts circuit into lockout. Pump down
can also be terminated by “Abort Pump down” in service tool, an immediate shutdown
diagnostic occurs or a pressure transducer fails.
Oil Equalizer Line
CSHN Compressors.
The oil equalizer line is equipped with a Rotolock fitting for easy removal. Torque values
for tightening these fitting is 100 ft.-lbs, plus or minus 10 ft. lbs.
136
CG-SVX17C-EN
Maintenance
Drain the oil to a level below the oil equalizer tube fitting before removing the oil equalizer
line. This must be done on both compressors. Use the oil drain valve on the compressor.
If the oil is drained below the level of the oil level sight glass, it will be below the oil
equalizer line level. Pressurize the low side of the compressor using nitrogen to help drain
the oil. No more than 10 psig of pressure will be needed.
CSHD Compressors.
CSHD compressors do not have an oil drain valve. Therefore, before removing the oil
equalizer line, the system refrigerant charge must be recovered before draining the oil.
Use a catch pan to catch the oil when the compressor oil equalizer line is loosened to
ensure that oil does not spill out of the compressor when the equalizer line is removed.
The torque value for the Rotolock fitting on CSHD compressors is 64 ft.-lbs., plus or minus
2 ft.-lbs.
Tandem Compressor Suction Restrictors
Since most tandem compressor sets use unequal size compressors, these combinations
require the use of a restrictor in the suction line of one or more compressors in order to
provide correct oil level balance between compressors when they are operating. See the
table below for correct restrictor applications. A figure showing where compressors are
installed in the different units is also shown.
Table 44. Compressor Manifold Order
Compressor Size
Unit
Nominal
Size (tons)
1A
1B
020
10
10
N/A
023
10
13
25/23
026
13
13
N/A
030
15
15
035
15
20
039
20
20
045
20
25
31
050
25
25
N/A
040
10
10
10
10
N/A
046
10
13
13
10
25/23
052
13
13
13
13
N/A
060
15
15
15
15
N/A
070
15
20
20
15
31
080
20
20
20
20
N/A
090
20
25
25
20
31
100
25
25
25
25
N/A
110
25
30
30
25
31
120
30
30
30
30
N/A
CG-SVX17C-EN
2A
2B
Restrictor Size mm
Location
1A
N/A
N/A
31
1A
N/A
1A
1A & 2B
1A & 2B
1A & 2B
1A & 2B
137
Maintenance
Table 45. Compressor Locations
Slant Unit
W Unit
V Unit
2B
1B
1A
2A
1B
1A
2C
1C
2B
1B
2A
1A
Compressor Replacement
If the CGAM chiller suffers a failed compressor, use these steps for replacement:
Each compressor has lifting eyes. Both lifting eyes must be used to lift the failed
compressor. DO NOT LIFT A COMPRESSOR USING A SINGLE LIFTING EYE. Use proper
lifting techniques, a spreader bar and rigging as for lifting both compressors
simultaneously.
Compressor weights by compressor model are:
138
•
CSHD 125 - 142 lbs.
•
CSHD 161 - 155 lbs.
•
CSHN 184 - 234 lbs.
•
CSHN 250 - 238 lbs.
•
CSHN 315 - 337 lbs.
•
CSHN 374 - 362 lbs.
CG-SVX17C-EN
Maintenance
After a mechanical failure of a compressor, it is necessary to change the oil in the
remaining compressor and also replace the liquid line filter drier. After an electrical
failure of a compressor, it will also be necessary to change the oil in the remaining
compressor, replace the liquid line filter drier and add a suction filter drier with clean-up
cores.
Note: Do not alter the refrigerant piping in any way as this can affect compressor
lubrication.
Note: Do not add a filter drier within 10 inches of the elbow for CSHD compressors, or
within 16 inches of the elbow for CSHN compressors.
Refrigerant System Open Time
Model CGAM chillers use POE oil and therefore refrigerant system open time must be
kept to a minimum. The following procedure is recommended:
Leave a new compressor sealed until it is ready to be installed in the unit. Maximum
system open time is dependent upon ambient conditions, but do not exceed one hour
open time.
Plug the open refrigerant line to minimize moisture absorption.
Always change the liquid line filter drier.
Evacuate the system to 500 microns or below.
Do not leave POE oil containers open to the atmosphere. Always keep them sealed.
Mechanical Compressor Failure
Replace the failed compressor(s) and change the oil in the remaining compressor(s)
along with the refrigerant system liquid line filter drier.
Electrical Compressor Failure
Replace the failed compressor and change the oil in the other compressor(s). Also add
a suction filter with cleanup cores and change the liquid line filter drier. Change filters and
oil until the oil no longer test acidic. See “Oil Testing.”
Compressor Motor Megging
Motor megging determines the electrical integrity of the compressor motor winding
insulation. Use a 500 volt megger. A less than 1 meg-ohm reading is acceptable and 1000
ohms per nameplate volts is required to safely start the compressor.
CG-SVX17C-EN
139
Maintenance
Compressor Current Imbalance
Normal current imbalance could be 4 to 15 percent with balanced voltage due to motor
design. Each phase should register 0.3 to 1.0 ohms and each phase should be within 7
percent of the other two phases. Phase to ground resistance must be infinity.
NOTICE: Maximum allowable voltage imbalance is 2 percent.
Refrigerant Piping
The compressor suction and discharge lines are copper. In most instances, piping may
be reused. If piping is not reusable, order the correct service parts. Cut all tubing with a
tubing cutter to prevent copper filings from entering the system. Cut the tubing in a
straight length of pipe after the compressor connection has been unsweated. The line can
then be reinstalled using a slip coupling and brazing.
NOTICE: The compressor suction line configuration must not be
changed in any way. Changing compressor suction line configuration
will compromise proper oil return to the compressor(s).
Compressor Electrical Terminal Box
Be sure to protect the terminal box when unbrazing or brazing compressor refrigerant
piping connections
Compressor Crankcase Heaters
Compressor crankcase heaters must be energized at least eight hours before starting the
CGAM chiller. This is required to boil refrigerant out of the oil before startup. Ambient
temperature is not a factor and the crankcase heaters must always be energized prior to
startup.
Condenser Maintenance
Condenser Coil Cleaning
Clean the condenser coils at least once a year or more frequently if the unit is in a “dirty”
environment. A clean condenser coil will help to maintain chiller operating efficiency.
Follow the detergent manufacturer's instructions to avoid damaging the condenser coils.
To clean the condenser coils use a soft brush and a sprayer such as a garden pump type
or a high-pressure type. A high quality detergent such as Trane Coil Cleaner (Part No.
CHM-0002) is recommended.
Note: If detergent mixture is strongly alkaline (pH value greater than 8.5, an inhibitor
must be added).
140
CG-SVX17C-EN
Maintenance
Evaporator Maintenance
NOTICE:
The factory-installed immersion heater must be de-energized if the
BPHE evaporator is drained of water for any reason. Failure to deenergize the immersion heater will cause it to burn out.
The Trane Model CGAM liquid chiller uses a brazed plate heat exchanger (BPHE)
evaporator with factory-installed electronic flow switch (IFM efector) that is positioned in
the evaporator water pipe. The evaporator inlet also includes a factory-installed
immersion heater for freeze protection and a water strainer that must be kept in place to
keep debris out of the evaporator.
Note: Strainer maintenance is critical to proper operation and reliability. Any particles
larger than 1mm entering the BPHE evaporator may cause the evaporator to fail,
requiring replacement.
Acceptable BPHE evaporator water flow rate is 1.5 to 3.6 GPM per nominal unit ton
capacity. To maintain 54-44 F in/out chilled water temperatures, the nominal water flow
rate is 2.4 GPM per ton.
Minimum water flow rate must be maintained to avoid laminar flow, potential evaporator
freezing, scaling and poor temperature control. The microprocessor and capacity control
algorithms are designed to take a 10 percent change in water flow rate per minute while
maintaining a ±2°F (1.1°C) leaving water temperature control accuracy. The chiller
tolerates up to 30 percent per minute water flow variation as long as the flow is equal to
or greater than minimum flow requirements.
Maximum water flow is 18 feet per second. Flow rates greater than this will cause
excessive erosion.
The BPHE evaporator is difficult to clean should it become plugged with debris.
Indications of a plugged BPHE evaporator include “wet” suction due to lack of heat
exchange, loss of superheat control, depressed discharge superheat (superheat less than
63°F), compressor oil dilution and/or starvation and premature compressor failure.
Evaporator Replacement
If the CGAM evaporator requires replacement, it is very important that the new
evaporator be replaced correctly and with the correct refrigerant and water piping
connections. The refrigerant inlet/liquid connection is at the bottom of the evaporator
and the refrigerant outlet/suction connection is at the top of the evaporator and both are
on the same side. Pay particular attention to evaporators with dual circuits. Avoid crosscircuiting when installing the new evaporator.
CG-SVX17C-EN
141
Maintenance
Water Strainer Maintenance
Factory-installed water strainer is a Y-type design. The stainer is equipped with a blowdown valve. The strainer is a 16 mesh (approximately 1 mm) material.
Figure 60. Water Strainer - Y type
For maximum efficiency, a differential pressure gauge installed across the inlet and outlet
will indicate pressure loss due to clogging and may be used as a guide to determine when
cleaning is required. The taps for the pressure gauges are included as standard from the
factory.
Normally when differential pressure reaches 5-10psi, the screen must be cleaned. The
strainer is equipped with a blow-down valve on the cover plate. To clean open and flush
out until any sediment is removed.
142
CG-SVX17C-EN
Diagnostics
Explanatory Comments
Diagnostic Text:
Black text is intended for use on TechView. It has no intrinsic length limit. It should contain
few or no abbreviations.
Blue (italicized) text is intended for use on DynaView. It has a 40 character length limit for English
and other European languages, based on 8 pixel character width (DynaView’s display is 320 pixels
wide). The text should be abbreviated as necessary to meet the length limit. Trane standard
abbreviations or ASME standard abbreviations (ASME Y14.38-1999 or later) should be used
wherever possible.
Orange (underlined) text is intended for use on LCI-C. LCI-C has a 28 character length limit for
English and other European languages, based on one character per byte (LCI-C diagnostic text has a
28 byte limit). It should be abbreviated as necessary to meet the length limit. Trane standard
abbreviations or ASME standard abbreviations (ASME Y14.38-1999 or later) should be used
wherever possible. “Comm:” is the standard abbreviation for “Comm Loss:” in order to leave enough
space for the rest of the diagnostic text.
Legacy Hex Code: Three digit hexadecimal code used on all past products to uniquely
identify diagnostics.
Diagnostic Name and Source: Name of Diagnostic and its source. Note that this is the
exact text used in the User Interface and/or Service Tool displays.
The following codes were added to cover the unmapped diagnostics:
6B6
6B7
Unknown Chiller Diagnostic
Unknown Compressor Diagnostic
Affects Target: Defines the “target” or what is affected by the diagnostic. Usually either
the entire Chiller, or a particular component is affected by the diagnostic (the same one
as the source), but in special cases functions are modified or disabled by the diagnostic.
None implies that there is no direct affect to the chiller, sub components or functional
operation.
Severity: Defines the severity of the above effect. Immediate means immediate
shutdown of the effected portion, Normal means normal or friendly shutdown of the
effected portion, Special Mode means a special mode of operation (limp along) is
invoked, but without shutdown, and Warning means an Informational Note or Warning
is generated.
Persistence: Defines whether or not the diagnostic and its effects are to be manually
reset (Latched), or can be either manually or automatically reset (Nonlatched).
Active Modes [Inactive Modes]: States the modes or periods of operation that the
diagnostic is active in and, as necessary, those modes or periods that it is specifically not
active in as an exception to the active modes. The inactive modes are enclosed in
brackets, [ ]. Note that the modes used in this column are internal and not generally
annunciated to any of the formal mode displays
CG-SVX17C-EN
143
Diagnostics
Criteria: Quantitatively defines the criteria used in generating the diagnostic and, if
nonlatching, the criteria for auto reset. If more explanation is necessary a hot link to the
Functional Specification is used.
Reset Level: Defines the lowest level of manual diagnostic reset command which can
clear the diagnostic. The manual diagnostic reset levels in order of priority are: Local and
Remote. A diagnostic that has a reset level of Local, can only be reset by a local
diagnostic reset command, but not by the lower priority remote Reset command
whereas a diagnostic listed as Remote reset can be reset by either.
Help Text: Provides for a brief description of what kind of problems might cause this
diagnostic to occur. Both control system component related problems as well as chiller
application related problems are addressed (as can possibly be anticipated). These help
messages will be updated with accumulated field experience with the chillers.
144
CG-SVX17C-EN
Diagnostics
Main Processor Diagnostics
Diagnostic Name
Active Modes
Reset
[Inactive
Criteria
Level
Modes]
NA
NonLatch
All
The main processor has
successfully come out of a reset
and built its application. A reset
may have been due to a power up,
installing new software or
configuration. This diagnostic is
immediately and automatically
cleared and thus can only be seen
in the historic diagnostic list.
Latch
All
MP has determined there was an
error with a block in the NonVolatile memory. Check settings.
Persiste
nce
Affects
Severity
Chiller
Warning
Platform
Warning
MP: Non-Volatile Memory Reformatted Platform
MP: Non-Volatile Memory Reformatted
MP: NV Memory Reformatted
Warning
Latch
All
Platform
Warning
Latch
All
Platform
Warning
Latch
All
Chiller
Immediate
Latch
All
Circuit
Immediate
Latch
All
Chiller
Immediate
Latch
MP: Reset Has Occurred
MP: Reset Has Occurred
MP: Reset Has Occurred
MP: Non-Volatile Block Test Error
MP: Non-Volatile Block Test Error
MP: NV Block Test Error
MP: Could not Store Starts and Hours
MP: Could not Store Starts and Hours
MP: Starts and Hours Failure
Check Clock
Check Clock
Check Clock
Phase Protection Fault
Phase Protection Fault
Phase Protection Fault
Low Pressure Cutout
Low Pressure Cutout
Low Pressure Cutout
Very Low Suction Pressure – Circuit 1
Very Low Suction Pressure – Circuit 1
Very Low Suct Press – Ckt 1
CG-SVX17C-EN
All
[circuit in
manual
lockout]
MP has determined there was an Remote
error in a sector of the NonVolatile memory and it was
reformatted. Check settings.
MP has determined there was an Remote
error with the previous power
down store. Starts and Hours may
have been lost for the last 24
hours.
The real time clock had detected Remote
loss of its oscillator at some time
in the past. Check / replace
battery? This diagnostic can be
effectively cleared only by writing
a new value to the chiller’s time
clock using the TechView or
DynaView’s “set chiller time”
functions.
Local
Phase protection module
recognized a phase loss or phase
reversal of the line power.
The suction refrigerant pressure
fell below the low pressure cutout
trip point. See the Very Low
Suction Pressure below for more
details.
The circuit’s suction pressure
dropped below (Low Pressure
Cutout Setpoint (kPa absolute) *
0.5) regardless of whether or not
compressors are running on that
circuit. This diagnostic was
created to prevent compressor
failures due to cross-binding by
forcing an entire chiller shutdown.
If a given circuit is locked out, the
suction pressure transducer
associated with it will be excluded
from causing this diagnostic.
Local
Local
145
Diagnostics
Very Low Suction Pressure – Circuit 2
Very Low Suction Pressure – Circuit 2
Very Low Suct Press – Ckt 2
High Discharge Temperature
High Discharge Temperature
High Discharge Temperature
High Discharge Temperature Lockout
High Discharge Temperature Lockout
High Discharge Temp Lockout
Compressor Fault
Compressor Fault
Compressor Fault
Compressor Fault Lockout
Compressor Fault Lockout
Compressor Fault Lockout
BAS Failed to Establish
Communication
BAS Failed to Establish
Communication
BAS Failed to Establish Comm
BAS Communication Lost
BAS Communication Lost
BAS Communication Lost
LCI-C Software Mismatch: Use BAS
Tool
LCI-C Software Mismatch: Use BAS
Tool
LCI-C Software: Use BAS Tool
External Chilled/Hot Water Setpoint
External Chilled/Hot Water Setpoint
Ext Chilled/Hot Water Setpt
146
Chiller
Immediate
Latch
All
[circuit in
manual
lockout]
Circuit
Circuit
The circuit’s suction pressure
dropped below (Low Pressure
Cutout Setpoint (kPa absolute) *
0.5)
regardless of whether or not
compressors are running on that
circuit. This diagnostic was
created to prevent compressor
failures due to crossbinding by
forcing an entire chiller shutdown.
If a given circuit is locked out, the
suction pressure transducer
associated with it will be excluded
from causing this diagnostic.
Immediate NonLatch Ckt Energized The discharge temperature
exceeded the limits for the
[Ckt Not
Energized] compressor.
Immediate
Latch
All
High discharge temperature
diagnostics occurred over 210
minutes.
Local
Local
Cprsr
Immediate NonLatch
All
The compressor fault switch input
is open.
Local
Cprsr
Immediate
All
The compressor fault switch input
remained open for more than 35
minutes.
Local
Latch
Five compressor fault diagnostics
have occurred within the last 210
minutes.
At power-up The BAS was setup as “installed” Remote
and the BAS did not communicate
with the MP within 15 minutes
after power-up.
Chiller
Special
NonLatch
Chiller
Special
NonLatch
All
Chiller
Warning
NonLatch
All
Chiller
Warning
NonLatch
All
The BAS was setup as “installed” Remote
at the MP and the LCI-C LLID lost
communications with the BAS for
15 continuous minutes after it had
been established.
LCI-C Neuron software and LCI-C Remote
IPC3 software do not match. Load
new LCI-C Neuron software using
LonTalk service tool.
Remote
a. Function Not “Enabled”: no
diagnostics. B. “Enabled “: OutOf-Range Low or Hi or bad LLID,
set diagnostic, default CWS/HWS
to next level of priority (e.g. Front
Panel SetPoint). This Warning
diagnostic will automatically reset
if the input returns to the normal
range.
CG-SVX17C-EN
Diagnostics
External Demand Limit Setpoint
External Demand Limit Setpoint
External Demand Limit Setpt
Circuit Pumpdown Terminated
Circuit Pumpdown Terminated
Circuit Pumpdown Terminated
Chilled Water Flow (Entering Water
Temp)
Chilled Water Flow (Entering Water
Temp)
Chilled Wtr Flow (Ent Temp)
Inverted Water Temp (Heating)
Inverted Water Temp (Heating)
Inverted Wtr Temp (Heating)
Low Evap Leaving Water Temp: Unit
Off
Low Evap Leaving Water Temp: Unit
Off
Low Evap Leav Wtr Temp: Off
Chiller
Warning
Circuit
Warning
Remote
a. Function Not “Enabled”: no
diagnostics. B. “Enabled “: OutOf-Range Low or Hi or bad LLID,
set diagnostic, default DLS to next
level of priority (e.g. Front Panel
SetPoint). This Warning
diagnostic will automatically reset
if the input returns to the normal
range.
Latching Operational/ The procedure did not terminate Remote
normally by reaching the
Service
Pumpdown [All termination pressure within the
allotted time.
Except
NonLatch
All
Operational See “Compressor Operational
and Service Pump Down,” p. 136 or
Pumpdown] “Compressor Service Pump Down
Procedure,” p. 136.
Remote
Chiller Immediate Latching
Any Ckt(s) The entering evaporator water
Energized [No temp fell below the leaving
evaporator water temperature by
Ckt(s)
Energized] more than 3°F for 100°F-sec while
at least one compressor was
running.
Remote
Chiller Immediate Latching Unit energized The leaving evaporator water
and all ckts’ temp fell below the entering
evaporator water temperature by
reversing
more than 3°F for 100°F-sec.
valves in
There is a 60 second ignore time
heating
direction [Unit after the condition to enable the
de-energized diagnostic is met. During the
or any ckt’s ignore time, the temperature
reversing valve error is not integrated.
in cooling
direction]
Remote
Chiller Warning and NonLatch Unit in Stop a. The leaving chilled water
Mode, or in temperature fell below the leaving
Special
or
Auto Mode and water temp cutout setting for 30
Action
Circuit
degree F seconds while the Chiller
No Ckt(s)
Energized [Any is in the Stop mode, or in Auto
Ckt Energized] mode with no compressors
running. Energize Evap Water
pump Relay until diagnostic auto
resets, then return to normal evap
pump control. Automatic reset
occurs when the temp rises 2°F
above the cutout setting for 30
minutes. When this diagnostic is
active AND Leaving Water
Temperature sensor diagnostic
(loss of comm or out of range) the
Evap Water pump relay shall be
de-energized.
b. If evaporator protection
temperature sensors are
installed, the effect is on the
appropriate circuit. Else, the
effect is on the chiller.
CG-SVX17C-EN
147
Diagnostics
Low Evap Leaving Water Temp: Unit On
Low Evap Leaving Water Temp: Unit On
Low Evap Leav Wtr Temp: On
Low Refrigerant Temperature
Low Refrigerant Temperature
Low Refrigerant Temperature
High Evaporator Water Temperature
High Evaporator Water Temperature
High Evap Water Temperature
Chiller
or
Circuit
Circuit
Chiller
Immediate NonLatch Any Ckt[s]
Energized [No
and Special
Ckt(s)
Action
Energized]
The chilled water temp. fell below Remote
the cutout setpoint for 30 degree
F Seconds while a compressor was
running. Automatic reset occurs
when the temperature rises 2 °F
above the cutout setting for 2
minutes. This diagnostic shall not
de-energize the Evaporator Water
Pump Output. If this diagnostic is
active the Low Evap Leaving
Water Temp: Unit Off diagnostic
shall be suppressed.
If evaporator protection
temperature sensors are
installed, the effect is on the
appropriate circuit. Else, the
effect is on the chiller.
The suction saturated refrigerant Local
Immediate
Latch
Circuit
Energized temperature dropped below the
Low Refrigerant Temperature
[Service
Pumpdown, Cutout Setpoint for 16.67°COperational seconds (30°F-seconds). See
Pumpdown] “Low Refrigerant Temp Cutout:,”
p. 88 for min/max information or
“Capacity Limited by Low Evap
Rfgt Temp,” p. 129 for limit
conditions.
Remote
Info and NonLatch Only effective if The leaving water temperature
exceeded the high evap water
either
Special
Action
1) Evaporator temp setting (TV service menu
Water Flow settable
– default 55.0°C (131°F)) for 15
Overdue,
2) Evaporator continuous seconds. The
Water Flow evaporator water pump relay will
be de-energized to stop the
Lost,
pump, but only if it is running due
3) Low Evap
Water Temp: to one of the diagnostics listed on
the left. The diagnostic will auto
Unit Off,
reset and the pump will return to
diagnostic is
normal control when the
active.
temperature falls 2.778°C (5°F)
below the trip setting. The
primary purpose is to stop the
evaporator water pump and its
associated pump heat from
causing excessive water-side
temperatures and water-side
pressures when the unit is not
running but the evap pump is on
due to either Evaporator Water
Flow Overdue, Evaporator Water
Flow Lost, or Low Evap Water
Temp – Unit Off diagnostics. This
diagnostic will not auto clear
solely due to the clearing of the
enabling diagnostic.
*at unit installation, especially
reversible units, high evap water
temp setting will need to be
written.
148
CG-SVX17C-EN
Diagnostics
High Suction Refrigerant Pressure
High Suction Refrigerant Pressure
High Suction Rfgt Press
High Pressure Cutout
High Pressure Cutout
High Pressure Cutout
High Discharge Refrigerant Pressure
High Discharge Refrigerant Pressure
High Discharge Rfgt Press
Emergency Stop
Emergency Stop
Emergency Stop
Starts/Hours Modified
Starts/Hours Modified
Starts/Hours Modified
Evaporator Pump Starts/Hours
Modified
Evaporator Pump Starts/Hours
Modified
Evap Pmp Starts/Hrs Modified
Evaporator Water Flow Lost
Evaporator Water Flow Lost
Evap Water Flow Lost
CG-SVX17C-EN
Chiller
Immediate NonLatch
All
Circuit
Immediate
Latch
All
Circuit
Immediate
Latch
All
Chiller
Immediate
Latch
All
Cprsr
Warning
NonLatch
All
Chiller
Warning
NonLatch
All
Immediate NonLatch
and Special
Action
All
Chiller
Any circuit’s suction pressure has Remote
risen above 95% of the high
pressure cutout setting. The
evaporator water pump relay will
be de-energized to stop the pump
regardless of why the pump is
running. The diagnostic will auto
reset and the pump will return to
normal control when all circuits’
suction pressures fall below 85%
of the high pressure cutout
setting.
The primary purpose is to stop the
evaporator water pump and its
associated pump heat from
causing refrigerant side pressures
close to the relief valve setting
when the chiller is not running,
such as could occur with
Evaporator Water Flow Overdue,
Evaporator Water Flow Lost, or
Low Evap Water Temp – Unit Off
diagnostics. This condition is
unlikely unless a discharge
isolation valve is installed and
closed.
The high pressure cutout switch
recognized a high pressure. See
High Suction Refrigerant Pressure
above for more details.
Discharge pressure exceeded the
high pressure cutout setpoint +
100 kPa. Likely cause: failed or
incorrectly set high pressure
cutout switch. Prevents release of
refrigerant through relief valve.
Emergency Stop input is open.
Local
Local
Local
NA
A counter for compressor starts or
hours has been modified by
TechView. This diagnostic is
immediately and automatically
cleared and thus can only be seen
in the historic diagnostic list.
A counter for evaporator pump
NA
starts or hours has been modified
by TechView. This diagnostic is
immediately and automatically
cleared and thus can only be seen
in the historic diagnostic list.
After the pump request was
Remote
activated, water flow was
established and then lost. Special
action is to keep the evap pump
request active in a diagnostic
override mode. See “Chilled
Water Pump Control,” p. 59 for
more details.
149
Diagnostics
Evaporator Water Flow Overdue
Evaporator Water Flow Overdue
Evap Water Flow Overdue
Evaporator Water Flow Lost – Pump 1
Evaporator Water Flow Lost – Pump 1
Evap Water Flow Lost
Evaporator Water Flow Lost – Pump 2
Evaporator Water Flow Lost – Pump 2
Evap Water Flow Lost
Evaporator Water Flow Overdue –
Pump 1
Evaporator Water Flow Overdue –
Pump 1
Evap Water Flow Overdue
Evaporator Water Flow Overdue –
Pump 2
Evaporator Water Flow Overdue –
Pump 2
Evap Water Flow Overdue
Fault Detected: Evaporator Water
Pump 1
Fault Detected: Evaporator Water
Pump 1
Fault: Evap Water Pump
Fault Detected: Evaporator Water
Pump 2
Fault Detected: Evaporator Water
Pump 2
Fault: Evap Water Pump
150
Chiller
Immediate NonLatch
and Special
Action
All
Chiller
Warning and NonLatch
Special
Action
All
Chiller
Warning and NonLatch
Special
Action
All
Chiller
Warning and NonLatch
Special
Action
All
Chiller
Warning and NonLatch
Special
Action
All
Chiller
Normal or NonLatch
Warning and
Special
Action
All
Chiller
NonLatch
Normal or
Warning and
Special Action
All
After the pump request was
activated, the evaporator water
flow overdue wait time elapsed
before water flow was
established. Special action is to
keep the evap pump request
active in a diagnostic override
mode. See “Chilled Water Pump
Control,” p. 59 for more details.
For dual evaporator pump
configurations only. Evaporator
Water Flow Lost diagnostic
occurred while Pump 1 was the
selected pump. See “Chilled
Water Pump Control - Field
Supplied Dual Pumps,” p. 60 for
more details.
For dual evaporator pump
configurations only. Evaporator
Water Flow Lost diagnostic
occurred while Pump 2 was the
selected pump. See “Chilled
Water Pump Control - Field
Supplied Dual Pumps,” p. 60 for
more details.
For dual evaporator pump
configurations only. Evaporator
Water Flow Overdue diagnostic
occurred while Pump 1 was the
selected pump. See “Chilled
Water Pump Control - Field
Supplied Dual Pumps,” p. 60 for
more details.
For dual evaporator pump
configurations only. Evaporator
Water Flow Overdue diagnostic
occurred while Pump 2 was the
selected pump.See “Chilled Water
Pump Control - Field Supplied
Dual Pumps,” p. 60 for more
details.
For systems with no evaporator
pump or a single evaporator
pump, a normal shutdown shall be
performed. For multiple pump
systems, detection of a pump
fault will generally cause pump
control to switch to the redundant
pump. See “Chilled Water Pump
Control - Field Supplied Dual
Pumps,” p. 60 for more details.
For systems with no evaporator
pump or a single evaporator
pump, a normal shutdown shall be
performed. For multiple pump
systems, detection of a pump
fault will generally cause pump
control to switch to the redundant
pump. See “Chilled Water Pump
Control - Field Supplied Dual
Pumps,” p. 60 for more details.
Remote
Remote
Remote
Remote
Remote
Remote
Remote
CG-SVX17C-EN
Diagnostics
Fan Fault
Fan Fault
Fan Fault
Fan Inverter Fault
Fan Inverter Fault
Fan Inverter Fault
Low Suction Superheat
Low Suction Superheat
Low Suction Superheat
High Compressor Pressure Differential
High Compressor Pressure Differential
High Cprsr Press Diff
Low Differential Refrigerant Pressure
Low Differential Refrigerant Pressure
Low Differential Rfgt Press
Low Discharge Saturated Temperature
Low Discharge Saturated Temperature
Low Discharge Sat Temp
Circuit
Warning
Latch
All
Circuit
Warning
NonLatch
All
Circuit
Immediate
Latch
Circuit
Immediate
Latch
Circuit
Normal
Latch
Circuit
Normal
Latch
All
Immediate
Software Error 1001: Call Trane Service
Software Error 1001: Call Trane Service functions
Software Error 1001
CG-SVX17C-EN
Latch
The fan deck is indicating a fault.
Local
The fan inverter fault input is
ignored for the first 5 seconds of
start up to allow variable speed
drives to power up.
Ckt Energized Measured suction superheat stays
below 2.22 °C for one continuous
[Ckt Not
Energized] minute, with a 1 minute ignore
time fro m the start of the circuit.
Local
Suction Superheat = suction temp
– sat. suction temp.
Ckt Energized Compressor involute pressure
differential (discharge pressure
[Ckt Not
Energized] [absolute] – volume ratio *
suction pressure [absolute])
exceeds 2550 kPa differential, or
exceeds 1862 kPa differential for
30 continuous minutes. Nominal
volume ratio for R410A
compressors is 2.9.
Ckt Energized The system differential pressure
for the respective circuit was
[Ckt Not
Energized] below 90 psid for more than 4000
psid-sec, with a 2.5 minute ignore
time from the start of the circuit.
Ckt Energized The discharge saturated
temperature for the respective
[Ckt Not
Energized] circuit was below 20 °C for more
than 3750 °C-sec, with a 10
minute ignore time from the start
of the circuit. Integration starts
after the ignore time is
completed.
All
A software monitor has detected a
condition in which there was a
continuous 1 minute period of
compressor operation, with no
Evaporator water flow. The
presence of this software error
message suggests an internal
software problem has been
detected. The events that led up
to this failure, if known, should be
recorded and transmitted to Trane
Controls Engineering.
Local
Local
Local
Local
Local
151
Diagnostics
All
Immediate
Software Error 1002: Call Trane Service
Software Error 1002: Call Trane Service functions
Software Error 1002
All
Immediate
Software Error 1003: Call Trane Service
Software Error 1003: Call Trane Service functions
Software Error 1003
Latch
Latch
All
All
A software monitor has detected a
condition in which there was a
continuous 1 minute period of
compressor operation, with a
misaligned state machine.
Reported if state chart
misalignment occurred inferred
form the Capacity Control, Circuit,
or Compressor State Machines
being in Stopped state or Inactive
state while a compressor was
operating and this condition
existed for at least 1 minute. The
presence of this software error
message suggests an internal
software problem has been
detected. The events that led up
to this failure, if known, should be
recorded and transmitted to Trane
Controls Engineering.
A software monitor has detected a
condition in which there was a
continuous 1 minute period of
compressor operation, with a
misaligned state machine.
Local
Local
Reported if state chart
misalignment occurred inferred
from the Capacity Control, Circuit,
or Compressor State Machines
remaining in the Stopping state
for more than 4 minutes with
operating compressors. The
presence of this software error
message suggests an internal
software problem has been
detected. The events that led up
to this failure, if known, should be
recorded and transmitted to Trane
Controls Engineering.
152
CG-SVX17C-EN
Diagnostics
Sensor Failure Diagnostics
Note: 1. The following sensor failure diagnostics will not occur unless that input or output
is required to be present by the particular configuration and installed options for
the unit. 2. Sensor diagnostics are named by the Functional Name of the input or
output that is no longer sending a valid value to the Main Processor, indicating a
sensor failure. Some LLIDs may have more than one functional output associated
with it. Refer to the unit’s wiring diagrams to relate the occurrence of such sensor
failure diagnostics back to the physical LLID boards that they have been assigned
to (bound).
Diagnostic Name
Evaporator Entering Water Temp Sensor
Evaporator Entering Water Temp Sensor
Evap Ent Water Temp Sensor
Evaporator Leaving Water Temp Sensor
Evaporator Leaving Water Temp Sensor
Evap Leav Water Temp Sensor
r
Outdoor Air Temp Sensor
Outdoor Air Temp Sensor
Outdoor Air Temp Sensor
Discharge Pressure Transducer
Discharge Pressure Transducer
Discharge Pressure Xdcr
Suction Pressure Transducer
Suction Pressure Transducer
Suction Pressure Xdcr
Suction Temperature Sensor
Suction Temperature Sensor
Suction Temperature Sensor
Discharge Temperature Sensor
Discharge Temperature Sensor
Discharge Temperature Sensor
Heat Recovery Entering Water Temp Sensor
Heat Recovery Entering Water Temp Sensor
HR Entering Wtr Temp Sensor
Heat Recovery Leaving Water Temp Sensor
Heat Recovery Leaving Water Temp Sensor
HR Leaving Wtr Temp Sensor
CG-SVX17C-EN
Chiller
Normal
Latch
Active
Modes
[Inactive
Modes]
All
Chiller
Normal
Latch
All
Bad Sensor or LLID
Remote
Chiller
Normal
Latch
All
Bad Sensor or LLID.
Remote
Circuit Immediat
e
Latch
All
Bad Sensor or LLID
Remote
Circuit Immediat
e
Latch
All
Bad Sensor or LLID
Remote
Circuit Immediat
e
Latch
All
Bad Sensor or LLID
Remote
Circuit Immediat
e
Latch
All
Bad Sensor or LLID
Remote
Chiller
Warning
Latch
All
Bad Sensor or LLID
Remote
Chiller
Warning
Latch
All
Bad Sensor or LLID
Remote
Affects Severity Persistence
Criteria
Reset
Level
Bad Sensor or LLID.
Remote
153
Diagnostics
Communication Diagnostics
Note: 1. The following communication loss diagnostics will not occur unless that input
or output is required to be present by the particular configuration and installed
options for the chiller. 2. Communication diagnostics (with the exception of
“Excessive Loss of Comm” are named by the Functional Name of the input or
output that is no longer being heard from by the Main Processor. Many LLIDs, such
as the Quad Relay LLID, have more than one functional output associated with it.
A comm loss with such a multiple function board, will generate multiple
diagnostics. Refer to the Chiller’s wiring diagrams to relate the occurrence of
multiple communication diagnostics back to the physical llid boards that they have
been assigned to (bound).
Diagnostic Name
Excessive Loss of Comm
Excessive Loss of Comm
Excessive Loss of Comm
Comm Loss: External Auto/Stop
Comm Loss: External Auto/Stop
Comm: External Auto/Stop
Comm Loss: Emergency Stop
Comm Loss: Emergency Stop
Comm: Emergency Stop
Comm Loss: External Ice
Building Control Input
Comm Loss: Ext Ice Building
Ctrl Input
Comm: Ext Ice Building Ctrl
Comm Loss: Outdoor Air
Temperature
Comm Loss: Outdoor Air
Temperature
Comm: Outdoor Air Temp
Comm Loss: Evap Leaving
Water Temp
Comm Loss: Evap Leaving
Water Temp
Comm: Evap Leav Water Temp
Comm Loss: Evap Entering
Water Temp
Comm Loss: Evap Entering
Water Temp
Comm: Evap Ent Water Temp
154
Affects
Severity Persistence
Active
Modes
Criteria
[Inactive
Modes]
All
Loss of comm with 10 or more of
the LLIDs configured for the
system has been detected. This
diagnostic will suppress the callout
of all subsequent comm loss
diagnostics. Check power
supply(s) and power disconnects –
troubleshoot LLID bus using
TechView.
All
Continual loss of communication
between the MP and the Functional
ID has occurred for a 35-40 second
period.
All
Continual loss of communication
between the MP and the Functional
ID has occurred for a 35-40 second
period.
All
Continual loss of communication
between the MP and the Functional
ID has occurred for a 35-40 second
period. Chiller shall revert to
normal (non-ice building) mode
regardless of last state.
All
Continual loss of communication
between the MP and the Functional
ID has occurred for a 35-40 second
period.
Reset
Level
Remote
Chiller
Immediate
Latch
Chiller
Normal
Latch
Chiller
Normal
Latch
Chiller
Warning
Latch
Chiller
Normal
Latch
Chiller
Normal
Latch
All
Continual loss of communication Remote
between the MP and the Functional
ID has occurred for a 35-40 second
period.
Chiller
Normal
Latch
All
Continual loss of communication Remote
between the MP and the Functional
ID has occurred for a 35-40 second
period.
Remote
Remote
Remote
Remote
CG-SVX17C-EN
Diagnostics
Comm Loss: Discharge Pressure
Transducer
Comm Loss: Discharge Pressure
Transducer
Comm: Discharge Press Xdcr
Comm Loss: Suction Pressure
Transducer
Comm Loss: Suction Pressure
Transducer
Comm: Suction Pressure Xdcr
Comm Loss: Ext Chilled/Hot Wtr
Setpoint
Comm Loss: Ext Chilled/Hot Wtr
Setpoint
Comm: Ext Chil/Hot Wtr Setpt
Comm Loss: Ext Demand Limit
Setpoint
Comm Loss: Ext Demand Limit
Setpoint
Comm: Ext Demand Limit Setpt
Comm Loss: Auxiliary Setpoint
Command
Comm Loss: Auxiliary Setpoint
Command
Comm: Auxiliary Setpt Cmd
Comm Loss: High Pressure
Cutout Switch
Comm Loss: High Pressure
Cutout Switch
Comm: High Press Cutout Sw
Comm Loss: Evaporator Water
Flow Switch
Comm Loss: Evaporator Water
Flow Switch
Comm: Evap Water Flow Sw
Comm Loss: Local BAS Interface
Comm Loss: Local BAS Interface
Comm: Local BAS Interface
Comm Loss: Compressor Fault
Input
Comm Loss: Compressor Fault
Input
Comm: Compressor Fault Input
Comm Loss: Compressor Run
Command
Comm Loss: Compressor Run
Command
Comm: Cprsr Run Command
CG-SVX17C-EN
Circuit
Immediate
Latch
All
Continual loss of communication Remote
between the MP and the Functional
ID has occurred for a 35-40 second
period.
Circuit
Immediate
Latch
All
Continual loss of communication Remote
between the MP and the Functional
ID has occurred for a 35-40 second
period.
Chiller
Warning
and Special
Action
Latch
All
Chiller
Warning
and Special
Action
Latch
All
Chiller
Warning
and Special
Action
Latch
All
Circuit
Immediate
Latch
All
Continual loss of communication
between the MP and the Functional
ID has occurred for a 35-40 second
period. Chiller shall discontinue
use of the External Chilled/Hot
Water Setpoint source and revert
to the next higher priority for
setpoint arbitration
Continual loss of communication
between the MP and the Functional
ID has occurred for a 35-40 second
period. Chiller shall discontinue
use of the External Demand Limit
Setpoint source and revert to the
next higher priority for setpoint
arbitration
Continual loss of communication
between the MP and the Functional
ID has occurred for a 35-40 second
period. Chiller shall discontinue
use of the Auxiliary Setpoint and
revert to the Chilled Water
Setpoint based on setpoint
arbitration
Continual loss of communication
between the MP and the Functional
ID has occurred for a 35-40 second
period.
Chiller
Immediate
Latch
All
Continual loss of communication Remote
between the MP and the Functional
ID has occurred for a 35-40 second
period.
Chiller
Warning
and Special
Action
NonLatch
All
Cprsr
Immediate
Latch
All
Continual loss of communication Remote
between the MP and the Functional
ID has occurred for a 35-40 second
period. Use the last values sent
from BAS.
Continual loss of communication Remote
between the MP and the Functional
ID has occurred for a 35-40 second
period.
Cprsr
Immediate
Latch
All
Remote
Remote
Remote
Remote
Continual loss of communication Remote
between the MP and the Functional
ID has occurred for a 35-40 second
period.
155
Diagnostics
Comm Loss: Fan Control Relays
Comm Loss: Fan Control Relays
Comm: Fan Control Relays
Comm Loss: Fan Fault
Comm Loss: Fan Fault
Comm: Fan Fault
Comm Loss: Fan Inverter Speed
Command
Comm Loss: Fan Inverter Speed
Command
Comm: Fan Inverter Speed Cmd
Comm Loss: Fan Inverter Fault
Comm Loss: Fan Inverter Fault
Comm: Fan Inverter Fault
Comm Loss: Op Status
Programmable Relays
Comm Loss: Op Status
Programmable Relays
Comm: Op Status Relays
Comm Loss: Anti-Freeze Heater
Relay
Comm Loss: Anti-Freeze Heater
Relay
Comm: Anti-Freeze Heater Rly
Comm Loss: Evaporator Water
Pump 1 Relay
Comm Loss: Evaporator Water
Pump 1 Relay
Comm: Evap Water Pump Relay
Comm Loss: Evaporator Water
Pump 2 Relay
Comm Loss: Evaporator Water
Pump 2 Relay
Comm: Evap Water Pump Relay
Comm Loss: Evaporator Pump
1 Fault Input
Comm Loss: Evaporator Pump
1 Fault Input
Comm: Evap Pump Fault Input
Comm Loss: Evaporator Pump
2 Fault Input
Comm Loss: Evaporator Pump
2 Fault Input
Comm: Evap Pump Fault Input
Comm Loss: Evap Pump
Inverter 1 Run Command
Comm Loss: Evap Pump
Inverter 1 Run Cmd
Comm: Evap Pmp Inv 1 Run
Cmd
156
Continual loss of communication Remote
between the MP and the Functional
ID has occurred for a 35-40 second
period.
Continual loss of communication Remote
between the MP and the Functional
ID has occurred for a 35-40 second
period.
Continual loss of communication Remote
between the MP and the Functional
ID has occurred for a 35-40 second
period. Revert to fixed-speed fan
algorithm using remaining fans.
Circuit
Immediate
Latch
All
Circuit
Warning
Latch
All
Circuit
Warning
and Special
Action
NonLatch
All
Circuit
Warning
and Special
Action
Latch
All
Chiller
Warning
Latch
All
Chiller
Warning
and Special
Action
Latch
All
Continual loss of communication Remote
between the MP and the Functional
ID has occurred for a 35-40 second
period.
Chiller
Normal
Latch
All
Continual loss of communication Remote
between the MP and the Functional
ID has occurred for a 35-40 second
period.
Chiller
Normal
Latch
All
Continual loss of communication Remote
between the MP and the Functional
ID has occurred for a 35-40 second
period.
Chiller
Normal
Latch
All
Continual loss of communication Remote
between the MP and the Functional
ID has occurred for a 35-40 second
period.
Chiller
Normal
Latch
All
Continual loss of communication Remote
between the MP and the Functional
ID has occurred for a 35-40 second
period.
Chiller
Normal
Latch
All
Continual loss of communication Remote
between the MP and the Functional
ID has occurred for a 35-40 second
period.
Continual loss of communication Remote
between the MP and the Functional
ID has occurred for a 35-40 second
period. Revert to fixed-speed fan
algorithm using remaining fans.
Continual loss of communication Remote
between the MP and the Functional
ID has occurred for a 35-40 second
period.
CG-SVX17C-EN
Diagnostics
Comm Loss: Evap Pump
Inverter 1 Fault Input
Comm Loss: Evap Pump Inv 1
Fault Input
Comm: Evap Pmp Inv 1 Flt Inp
Comm Loss: Evap Pump
Inverter 1 Frequency Feedback
Comm Loss: Evap Pump Inv 1
Freq Feedback
Comm: Evap Pmp Inv 1 Freq
Comm Loss: Suction
Temperature
Comm Loss: Suction
Temperature
Comm: Suction Temperature
Comm Loss: Heat/Cool Switch
Comm Loss: Heat/Cool Switch
Comm: Heat/Cool Switch
Comm Loss: Electronic
Expansion Valve
Comm Loss: Electronic
Expansion Valve
Comm: EXV
Comm Loss: Cooling EXV
Comm Loss: Cooling EXV
Comm: Cooling EXV
Comm Loss: Heating EXV
Comm Loss: Heating EXV
Comm: Heating EXV
Comm Loss: External Night
Noise Setback Input
Comm Loss: Ext Night Noise
Setback Input
Comm: Ext Night Noise Inp
Comm Loss: Night Noise
Setback Relay
Comm Loss: Night Noise
Setback Relay
Comm: Night Noise Setbk Rly
Comm Loss: Phase Protection
Fault Input
Comm Loss: Phase Protection
Fault Input
Comm: Phase Protect Flt Inp
Comm Loss: Discharge
Temperature Sensor
Comm Loss: Discharge
Temperature Sensor
Comm: Discharge Temp Sensor
Comm Loss: Subcooler Shutoff
Valve Relay
Comm Loss: Subcooler Shutoff
Valve Relay
Comm: Subcooler Shut Vlv Rly
CG-SVX17C-EN
Chiller
Normal
Latch
All
Continual loss of communication Remote
between the MP and the Functional
ID has occurred for a 35-40 second
period.
Chiller
Normal
Latch
All
Continual loss of communication Remote
between the MP and the Functional
ID has occurred for a 35-40 second
period.
Circuit
Normal
Latch
All
Continual loss of communication Remote
between the MP and the Functional
ID has occurred for a 35-40 second
period.
Chiller
Normal
Latch
All
Circuit
Immediate
Latch
All
Continual loss of communication Remote
between the MP and the Functional
ID has occurred for a 35-40 second
period.
Continual loss of communication Remote
between the MP and the Functional
ID has occurred for a 35-40 second
period.
Circuit
Immediate
Latch
All
Circuit
Immediate
Latch
All
Chiller
Warning
and Special
Action
Latch
All
Chiller
Normal
Latch
All
Chiller
Normal
Latch
All
Continual loss of communication Remote
between the MP and the Functional
ID has occurred for a 35-40 second
period.
Circuit
Immediate
Latch
All
Continual loss of communication Remote
between the MP and the Functional
ID has occurred for a 35-40 second
period.
Circuit
Normal
Latch
All
Continual loss of communication Remote
between the MP and the Functional
ID has occurred for a 35-40 second
period.
Continual loss of communication
between the MP and the Functional
ID has occurred for a 35-40 second
period.
Continual loss of communication
between the MP and the Functional
ID has occurred for a 35-40 second
period.
Continual loss of communication
between the MP and the Functional
ID has occurred for a 35-40 second
period. External input is excluded
from arbitration logic per standard
arbitration rules.
Continual loss of communication
between the MP and the Functional
ID has occurred for a 35-40 second
period.
Remote
Remote
Remote
Remote
157
Diagnostics
Comm Loss: Heat Recovery
Entering Water Temperature
Sensor
Comm Loss: HR Entering Water
Temperature
Comm: HR Entering Water
Temp
Comm Loss: Heat Recovery
Leaving Water Temperature
Sensor
Comm Loss: HR Leaving Water
Temperature
Comm: HR Leaving Water
Temp
Comm Loss: Reversing Valve
Comm Loss: Reversing Valve
Comm: Reversing Valve
Comm Loss: Percent Capacity
Output
Comm Loss: Percent Capacity
Output
Comm: Percent Capacity Out
Comm Loss: Receiver Fill Valve
Relay
Comm Loss: Receiver Fill Valve
Relay
Comm: Receiver Fill Vlv Rly
158
Chiller
Warning
Latch
All
Continual loss of communication Remote
between the MP and the Functional
ID has occurred for a 35-40 second
period.
Chiller
Warning
Latch
All
Continual loss of communication Remote
between the MP and the Functional
ID has occurred for a 35-40 second
period.
Circuit
Normal
Latch
All
Chiller
Warning
Latch
All
Continual loss of communication Remote
between the MP and the Functional
ID has occurred for a 35-40 second
period.
Continual loss of communication Remote
between the MP and the Functional
ID has occurred for a 35-40 second
period.
Circuit
Normal
Latch
All
Continual loss of communication Remote
between the MP and the Functional
ID has occurred for a 35-40 second
period.
CG-SVX17C-EN
Diagnostics
Main Processor- Boot Messages and Diagnostics
DynaView Display Message
Boot Software Part Numbers:
LS Flash --> 6200-0318-XX
MS Flash --> 6200-0319-XX
Description
Troubleshooting
The “boot code” is the portion of the code that is resident in all MPs regardless of what
application code (if any) is loaded. Its main function is to run power up tests and provide
a means for downloading application code via the MP’s serial connection. The Part numbers
for the code are displayed in the lower left hand corner of the DynaView during the early
portion of the power up sequence and during special programming and converter modes.
See below. For the EasyView, the extension of the boot code part number is displayed for
approximately 3 immediately following power up.
Err2: RAM Pattern 1 Failure
// This is normal, but you should provide this information when contacting Technical
Service about power up problems.
There were RAM errors detected in RAM Test Pattern #1.
Err2: RAM Pattern 2 Failure
// Recycle power, if the error persists, replace MP.
There were RAM errors detected in RAM Test Pattern #2.
Err2: RAM Addr Test #1 Failure
//Recycle power, if the error persists, replace MP.
There were RAM errors detected in RAM Address Test #1.
Err2: RAM Addr Test #2 Failure
// Recycle power, if error persists, replace MP.
There were RAM errors detected in RAM Address Test #2.
No Application Present
//Recycle power, if the error persists, replace MP.
No Main Processor Application is present – There are no RAM Test Errors.
Please Load Application...
// Connect a TechView Service Tool to the MP’s serial port, provide chiller model number
(configuration information) and download the configuration if prompted by TechView.
Then proceed to download the most recent RTAC application or specific version as
recommended by Technical Service.
MP: Invalid Configuration
MP has an invalid configuration based on the current software installed
MP Application Memory CRC Error App software inside the MP failed its own checksum test. Possible causes: application
software in the MP is not complete – software download to the MP was not completed
successfully - or MP hardware problem. Note: User should attempt to reprogram the MP
if this diagnostic occurs.
App Present. Running Selftest.… An application has been detected in the Main Processor’s nonvolatile memory and the boot
code is proceeding to run a check on its entirety. 8 seconds later, the boot code had
Selftest Passed
completed and passed the (CRC) test.
App Present. Running Selftest…
Err3: CRC Failure
A Valid Configuration is Present
// Temporary display of this screen is part of the normal power up sequence.
An application has been detected in Main Processor’s nonvolatile memory and the boot
code is proceeding to run a check on its entirety. A few seconds later, the boot code had
completed but failed the (CRC) test.
//Connect a TechView Service Tool to the MP’s serial port, provide chiller model number
(configuration information) and download the configuration if prompted by TechView.
Then proceed to download the most recent RTAC application or specific version as
recommended by Technical Service. Note that this error display may also occur during the
programming process, if the MP never had a valid application any time prior to the
download. If the problem persists, replace the MP.
A valid configuration is present in the MP’s nonvolatile memory. The configuration is a set
of variables and settings that define the physical makeup of this particular chiller. These
include: number/airflow,/and type of fans, number/and size of compressors, special
features, characteristics, and control options.
// Temporary display of this screen is part of the normal power up sequence.
CG-SVX17C-EN
159
Diagnostics
Err4: UnHandled Interrupt
Restart Timer:
[3 sec countdown timer]
An unhandled interrupt has occurred while running the application code. This event will
normally cause a safe shutdown of the entire chiller. Once the countdown timer reaches
0, the processor will reset, clear diagnostics, and attempt to restart the application and
allow a normal restart of chiller as appropriate.
// This condition might occur due to a severe electro-magnetic transient such as can be
caused by a near lightening strike. Such events should be rare or isolated and if no damage
results to the CH.530 control system, the Chiller will experience a shutdown and restart.
If this occurs more persistently it may be due to an MP hardware problem. Try replacing
the MP. If replacement of the MP proves ineffective, the problem may be a result of
extremely high radiated or conducted EMI. Contact Technical Service.
Err5: Operating System Error
Restart Timer:
[3 sec countdown timer]
If this screen occurs immediately after a software download, attempt to reload both the
configuration and the application. Failing this, contact Technical Service.
An Operating System error has occurred while running the application code. This event
will normally cause a safe shutdown of the entire chiller. Once the countdown timer
reaches 0, the processor will reset, clear diagnostics, and attempt to restart the application
and allow a normal restart of chiller as appropriate.
// See Err 4 above
A Watch Dog Timer Error has occurred while running the application code. This event will
normally cause a safe shutdown of the entire chiller. Once the countdown timer reaches
0, the processor will reset, clear diagnostics, and attempt to restart the application
allowing a normal restart of chiller as appropriate.
An unknown Error has occurred while running the application code. This event will
normally cause a safe shutdown of the entire chiller. Once the countdown timer reaches
0, the processor will reset, clear diagnostics, and attempt to restart the application
allowing a normal restart of chiller as appropriate
Press A touch was detected during boot indicating the user wanted to stay in boot mode. This
mode can be used to recover from a fatal software error in the application code. Cycle
power on the MP to clear this error if it was unintentional.
A command was received from the Service Tool (TechView) to stop the running application
and run in the “converter mode”. In this mode the MP acts as a simple gateway and allows
the TechView service computer to talk to all the LLIDS on the IPC3 bus.
A command was received by the MP from the TechView Service Tool and the MP is in the
process of first erasing and then writing the program code to its internal Flash (nonvolatile)
Memory. Note that if the MP never had a prior application already in memory, the error
code “Err3”will be displayed instead of this, during the programming download process.
Err6: Watch Dog Timer Error
Restart Timer:
[3 sec countdown timer]
Err7: Unknown Error
Restart Timer:
[3 sec countdown timer]
Err8: Held in Boot by User Key
[3 sec countdown timer]
Converter Mode
Programming Mode
160
CG-SVX17C-EN
Unit Wiring
This section provides field wiring diagrams, electrical schematics and connection
diagrams for 20-120 ton CGAM units.
Drawing Number
Description
Page
2309-2075-sheet 1
Schematic - Table of Contents - slant frame
163
2309-2075-sheet 2
Schematic - Device Designators - slant frame
164-165
2309-2075-sheet 3
Schematic - Notes - slant frame
166-167
2309-2075-sheet 4
Schematic - Compressor Power - slant frame
168-169
2309-2075-sheet 5
Schematic - blank
2309-2075-sheet 6
Schematic - Fan Circuit 1 - slant frame
170-171
2309-2075-sheet 7
Schematic - Fan Circuit 1 continued - slant frame
172-173
2309-2075-sheet 8
Schematic - blank
2309-2075-sheet 9
Schematic - blank
2309-2075-sheet 10
Schematic - Water Pumps - slant frame
174-175
2309-2075-sheet 11
Schematic - Compressor Control - slant frame
176-177
2309-2075-sheet 12
Schematic - Fan Control - slant frame
178-179
2309-2075-sheet 13
Schematic - Fan Control continued - slant frame
180-181
2309-2075-sheet 14
Schematic - blank
2309-2075-sheet 15
Schematic - blank
2309-2075-sheet 16
Schematic - blank
2309-2075-sheet 17
Schematic - blank
2309-2075-sheet 18
Schematic - Common Control - slant frame
182-183
2309-2075-sheet 19
Schematic - CH530 Control - slant frame
184-185
2309-2075-sheet 20
Schematic - Freeze Protection - slant frame
186-187
2309-2075-sheet 1
Schematic - Table of Contents - V frame
188-189
2309-2075-sheet 2
Schematic - Device Designators - V frame
190-191
2309-2075-sheet 3
Schematic - Notes - V frame
192-193
2309-2075-sheet 4
Schematic - Compressor Power - V frame
194-195
2309-2075-sheet 5
Schematic - Compressor Power continued - V frame
196-197
2309-2075-sheet 6
Schematic - Fan Circuit 1 - V frame
198-199
2309-2075-sheet 7
Schematic - Fan Circuit 1 continued - V frame
200-201
2309-2075-sheet 8
Schematic - Fan Circuit 2 - V frame
202-203
2309-2075-sheet 9
Schematic - Fan Circuit 2 continued - V frame
204-205
2309-2075-sheet 10
Schematic - Water Pumps - V frame
206-207
2309-2075-sheet 11
Schematic - Compressor Control - V frame
208-209
2309-2075-sheet 12
Schematic - Fan Control - V frame
210-211
2309-2075-sheet 13
Schematic - Fan Control continued - V frame
212-213
2309-2075-sheet 14
Schematic - blank
2309-2075-sheet 15
Schematic - blank
2309-2075-sheet 16
Schematic - blank
2309-2075-sheet 17
Schematic - blank
2309-2075-sheet 18
Schematic - Common Control - V frame
CG-SVX17C-EN
214-215
161
Unit Wiring
Drawing Number
Description
Page
2309-2075-sheet 19
Schematic - CH530 Control - V frame
216-217
2309-2075-sheet 20
Schematic - Freeze Protection - V frame
218-219
2309-2075-sheet 1
Schematic - Table of Contents - W frame
220-221
2309-2075-sheet 2
Schematic - Device Designators - W frame
222-223
2309-2075-sheet 3
Schematic - Notes - W frame
224-225
2309-2075-sheet 4
Schematic - Compressor Power - W frame
226-227
2309-2075-sheet 5
Schematic - Compressor Power continued - W frame
228-229
2309-2075-sheet 6
Schematic - Fan Circuit 1 - W frame
230-231
2309-2075-sheet 7
Schematic - Fan Circuit 1 continued - W frame
232-233
2309-2075-sheet 8
Schematic - Fan Circuit 2 - W frame
234-235
2309-2075-sheet 9
Schematic - Fan Circuit 2 continued - W frame
236-237
2309-2075-sheet 10
Schematic - Water Pumps - W frame
238-239
2309-2075-sheet 11
Schematic - Compressor Control - W frame
240-241
2309-2075-sheet 12
Schematic - Fan Control - W frame
242-243
2309-2075-sheet 13
Schematic - Fan Control continued - W frame
244-245
2309-2075-sheet 14
Schematic - Fan Control continued - W frame
246-247
2309-2075-sheet 15
Schematic - Fan Control continued - W frame
248-249
2309-2075-sheet 16
Schematic - blank
2309-2075-sheet 17
Schematic - blank
2309-2075-sheet 18
Schematic - Common Control - W frame
2309-2075-sheet 19
Schematic - CH530 Control - W frame
252-253
2309-2075-sheet 20
Schematic - Freeze Protection - W frame
254-255
250-251
2309-2076-sheet 1
Field Wiring Diagram
256-257
2309-2076-sheet 2
Field Wiring Diagram Notes
258-259
5720-6468
Diagram - Component Location - slant frame
260-261
5720-6497
Assembly - Device Location Sensor and CH530 - slant frame
262-263
5720-6469
Diagram - Component Location - V frame
264-265
5720-6498
Assembly - Device Location Sensor and CH530 - V frame
266-267
5720-6470
Diagram - Component Location - W frame
268-269
5720-6499
Assembly - Device Location Sensor and CH530 - W frame
270-271
162
CG-SVX17C-EN
Unit Wiring
20-35 Ton - “Slant Frame” - Table of Contents
CG-SVX17C-EN
163
Unit Wiring
20-35 Ton - “Slant Frame” - Device Designators
164
CG-SVX17C-EN
Unit Wiring
20-35 Ton - “Slant Frame” - Device Designators
CG-SVX17C-EN
165
Unit Wiring
20-35 Ton - “Slant Frame” - Notes
166
CG-SVX17C-EN
Unit Wiring
20-35 Ton - “Slant Frame” - Notes
CG-SVX17C-EN
167
Unit Wiring
20-35 Ton - “Slant Frame” - Compressor Power
168
CG-SVX17C-EN
Unit Wiring
20-35 Ton - “Slant Frame” - Compressor Power
CG-SVX17C-EN
169
Unit Wiring
20-35 Ton - “Slant Frame” - Fans Circuit 1
170
CG-SVX17C-EN
Unit Wiring
20-35 Ton - “Slant Frame” - Fans Circuit 1
CG-SVX17C-EN
171
Unit Wiring
20-35 Ton - “Slant Frame” - Fans Circuit 1 continued
172
CG-SVX17C-EN
Unit Wiring
20-35 Ton - “Slant Frame” - Fans Circuit 1 continued
CG-SVX17C-EN
173
Unit Wiring
20-35 Ton - “Slant Frame” - Water Pumps
174
CG-SVX17C-EN
Unit Wiring
20-35 Ton - “Slant Frame” - Water Pumps
CG-SVX17C-EN
175
Unit Wiring
20-35 Ton - “Slant Frame” - Compressor Control
176
CG-SVX17C-EN
Unit Wiring
20-35 Ton - “Slant Frame” - Compressor Control
CG-SVX17C-EN
177
Unit Wiring
20-35 Ton - “Slant Frame” - Fan Control
178
CG-SVX17C-EN
Unit Wiring
20-35 Ton - “Slant Frame” - Fan Control
CG-SVX17C-EN
179
Unit Wiring
20-35 Ton - “Slant Frame” - Fan Control continued
180
CG-SVX17C-EN
Unit Wiring
20-35 Ton - “Slant Frame” - Fan Control continued
CG-SVX17C-EN
181
Unit Wiring
20-35 Ton - “Slant Frame” - Common Control
182
CG-SVX17C-EN
Unit Wiring
20-35 Ton - “Slant Frame” - Common Control
CG-SVX17C-EN
183
Unit Wiring
20-35 Ton - “Slant Frame” - CH530 Control
184
CG-SVX17C-EN
Unit Wiring
20-35 Ton - “Slant Frame” - CH530 Control
CG-SVX17C-EN
185
Unit Wiring
20-35 Ton - “Slant Frame” - Freeze Protection
186
CG-SVX17C-EN
Unit Wiring
20-35 Ton - “Slant Frame” - Freeze Protection
CG-SVX17C-EN
187
Unit Wiring
40-70 Ton - “V Frame” - Table of Contents
188
CG-SVX17C-EN
Unit Wiring
40-70 Ton - “V Frame” - Table of Contents
CG-SVX17C-EN
189
Unit Wiring
40-70 Ton - “V Frame”- Device Designators
190
CG-SVX17C-EN
Unit Wiring
40-70 Ton - “V Frame” - Device Designators
CG-SVX17C-EN
191
Unit Wiring
40-70 Ton - “V Frame” - Notes
192
CG-SVX17C-EN
Unit Wiring
40-70 Ton - “V Frame” - Notes
CG-SVX17C-EN
193
Unit Wiring
40-70 Ton - “V Frame” - Compressor Power
194
CG-SVX17C-EN
Unit Wiring
40-70 Ton - “V Frame” - Compressor Power
CG-SVX17C-EN
195
Unit Wiring
40-70 Ton - “V Frame” - Compressor Power continued
196
CG-SVX17C-EN
Unit Wiring
40-70 Ton - “V Frame” - Compressor Power continued
CG-SVX17C-EN
197
Unit Wiring
40-70 Ton - “V Frame” - Fans Circuit 1
198
CG-SVX17C-EN
Unit Wiring
40-70 Ton - “V Frame” - Fans Circuit 1
CG-SVX17C-EN
199
Unit Wiring
40-70 Ton - “V Frame” - Fans Circuit 1 continued
200
CG-SVX17C-EN
Unit Wiring
40-70 Ton - “V Frame” - Fans Circuit 1 continued
CG-SVX17C-EN
201
Unit Wiring
40-70 Ton - “V Frame” - Fans Circuit 2
202
CG-SVX17C-EN
Unit Wiring
40-70 Ton - “V Frame” - Fans Circuit 2
CG-SVX17C-EN
203
Unit Wiring
40-70 Ton - “V Frame” - Fans Circuit 2 continued
204
CG-SVX17C-EN
Unit Wiring
40-70 Ton - “V Frame” - Fans Circuit 2 continued
CG-SVX17C-EN
205
Unit Wiring
40-70 Ton - “V Frame” - Water Pumps
206
CG-SVX17C-EN
Unit Wiring
40-70 Ton - “V Frame” - Water Pumps
CG-SVX17C-EN
207
Unit Wiring
40-70 Ton - “V Frame” - Compressor Control
208
CG-SVX17C-EN
Unit Wiring
40-70 Ton - “V Frame” - Compressor Control
CG-SVX17C-EN
209
Unit Wiring
40-70 Ton - “V Frame” - Fan Control
210
CG-SVX17C-EN
Unit Wiring
40-70 Ton - “V Frame” - Fan Control
CG-SVX17C-EN
211
Unit Wiring
40-70 Ton - “V Frame” - Fan Control continued
212
CG-SVX17C-EN
Unit Wiring
40-70 Ton - “V Frame” - Fan Control continued
CG-SVX17C-EN
213
Unit Wiring
40-70 Ton - “V Frame” - Common Control
214
CG-SVX17C-EN
Unit Wiring
40-70 Ton - “V Frame” - Common Control
CG-SVX17C-EN
215
Unit Wiring
40-70 Ton - “V Frame” - CH530 Control
216
CG-SVX17C-EN
Unit Wiring
40-70 Ton - “V Frame” - CH530 Control
CG-SVX17C-EN
217
Unit Wiring
40-70 Ton - “V Frame” - Freeze Protection
218
CG-SVX17C-EN
Unit Wiring
40-70 Ton - “V Frame” - Freeze Protection
CG-SVX17C-EN
219
Unit Wiring
80-120 Ton - “W Frame” - Table of Contents
220
CG-SVX17C-EN
Unit Wiring
80-120 Ton - “W Frame” -Table of Contents
CG-SVX17C-EN
221
Unit Wiring
80-120 Ton - “W Frame” - Device Designators
222
CG-SVX17C-EN
Unit Wiring
80-120 Ton - “W Frame” - Device Designators
CG-SVX17C-EN
223
Unit Wiring
80-120 Ton - “W Frame” - Notes
224
CG-SVX17C-EN
Unit Wiring
80-120 Ton - “W Frame” - Notes
CG-SVX17C-EN
225
Unit Wiring
80-120 Ton - “W Frame” - Compressor Power
226
CG-SVX17C-EN
Unit Wiring
80-120 Ton - “W Frame” - Compressor Power
CG-SVX17C-EN
227
Unit Wiring
80-120 Ton - “W Frame” - Compressor Power continued
228
CG-SVX17C-EN
Unit Wiring
80-120 Ton - “W Frame” - Compressor Power continued
CG-SVX17C-EN
229
Unit Wiring
80-120 Ton - “W Frame” - Fans Circuit 1
230
CG-SVX17C-EN
Unit Wiring
80-120 Ton - “W Frame” - Fans Circuit 1
CG-SVX17C-EN
231
Unit Wiring
80-120 Ton - “W Frame” - Fans Circuit 1 continued
232
CG-SVX17C-EN
Unit Wiring
80-120 Ton - “W Frame” - Fans Circuit 1 continued
CG-SVX17C-EN
233
Unit Wiring
80-120 Ton - “W Frame” - Fans Circuit 2
234
CG-SVX17C-EN
Unit Wiring
80-120 Ton - “W Frame” - Fans Circuit 2
CG-SVX17C-EN
235
Unit Wiring
80-120 Ton - “W Frame” - Fans Circuit 2 continued
236
CG-SVX17C-EN
Unit Wiring
80-120 Ton - “W Frame” - Fans Circuit 2 continued
CG-SVX17C-EN
237
Unit Wiring
80-120 Ton - “W Frame” - Water Pumps
238
CG-SVX17C-EN
Unit Wiring
80-120 Ton - “W Frame” - Water Pumps
CG-SVX17C-EN
239
Unit Wiring
80-120 Ton - “W Frame” - Compressor Control
240
CG-SVX17C-EN
Unit Wiring
80-120 Ton - “W Frame” - Compressor Control
CG-SVX17C-EN
241
Unit Wiring
80-120 Ton - “W Frame” - Fan Control
242
CG-SVX17C-EN
Unit Wiring
80-120 - “W Frame” - Fan Control
CG-SVX17C-EN
243
Unit Wiring
80-120 Ton - “W Frame” - Fan Control continued
244
CG-SVX17C-EN
Unit Wiring
80-120 Ton - “W Frame” - Fan Control continued
CG-SVX17C-EN
245
Unit Wiring
80-120 Ton - “W Frame” - Fan Control continued
246
CG-SVX17C-EN
Unit Wiring
80-120 Ton - “W Frame” - Fan Control continued
CG-SVX17C-EN
247
Unit Wiring
80-120 Ton - “W Frame” - Fan Control continued
248
CG-SVX17C-EN
Unit Wiring
80-120 Ton - “W Frame” - Fan Control continued
CG-SVX17C-EN
249
Unit Wiring
80-120 Ton - “W Frame” - Common Control
250
CG-SVX17C-EN
Unit Wiring
80-120 Ton - “W Frame” - Common Control
CG-SVX17C-EN
251
Unit Wiring
80-120 Ton - “W Frame” - CH530 Control
252
CG-SVX17C-EN
Unit Wiring
80-120 Ton - “W Frame” - CH530 Control
CG-SVX17C-EN
253
Unit Wiring
80-120 Ton - “W Frame” - Freeze Protection
254
CG-SVX17C-EN
Unit Wiring
80-120 Ton - “W Frame” - Freeze Protection
CG-SVX17C-EN
255
Unit Wiring
Field Wiring Diagram
256
CG-SVX17C-EN
Unit Wiring
Field Wiring Diagram
TRANE
C
CG-SVX17C-EN
257
Unit Wiring
Field Wiring Diagram - Notes
FUSE
258
CG-SVX17C-EN
Unit Wiring
Field Wiring Diagrams - Notes
TRANE
C
REPLACEMENT FUSE TABLE
FUSE
1F1
1F2
1F3
1F4
VOLTAGE
ALL
ALL
ALL
ALL
200
230
380
400
460
575
200
230
380
400
460
575
200
230
380
400
460
575
Hz
ALL
ALL
ALL
ALL
60
60
60
50
60
60
60
60
60
50
60
60
60
60
60
50
60
60
CLASS
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
AMPS
10
10
10
10
10
8
5
5
5
4
10
8
5
5
5
4
10
8
5
5
5
4
1F11
ALL
ALL
CC
10
1F12 - 1F13
ALL
ALL
CC
6
200-460
ALL
CC
30
575
60
CC
6
1F5,
1F6
1F7
1F8,
1F9,
1F10
1F14 - 1F16
1F17 - 1F19
1F38
1F44
1F38
1F41
-
1F40
1F46
1F40
1F43
1F32,
1F33,
1F34
FUSE, CONTROL POWER TRANSFORMER,
PRIMARY
THIRD PHASE, PHASE PROTECTION
MONITOR
DUAL POINT, POWER SECOND PHASE,
PHASE PROTECTION MONITOR
FUSE, CONTROL POWER TRANSFORMER,
SECONDARY, 115V
FUSE, CONTROL POWER TRANSFORMER,
SECONDARY, 24V
FUSE, INVERTER, FAN
(FAST ACTING EXCEPT 575V)
FAST ACTING FUSE,
ATM-R-30
FAST ACTING FUSE,
ALL
ALL
CC
30
USED ONLY ON W UNITS
FACTORY PROVIDED PUMP INVERTER FUSE
ALL
ALL
CC
30
200,230
60
J
30
3.7Kw VSD
460,575
60
J
25
5.5 Kw VSD
200,230
460,575
200,230
460,575
CG-SVX17C-EN
NOTES
FUSE, COMPRESSOR CRANKCASE HEATER,
CIRCUIT 1
FUSE, COMPRESSOR CRANKCASE HEATER,
CIRCUIT 2
60
J
60
J
60
30
60
40
7.5Kw VSD
11Kw VSD
259
Unit Wiring
20-35 Ton - “Slant Frame” - Component Location
NOTES
1M1
41. COMPONENT 1X1 WILL REPLACE 1Q1 WHEN TERMINAL BLOCK OPTION IS SELECTED.
2. COMPONENTS 1M1 AND 1S1 ARE USED ONLY WHEN THE VENTILATED PANEL IS REQUIRED.
D
3. COMPONENT 1T2 IS USED ONLY WHEN THE 575V OPTION IS SELECTED.
4. WIRE RETAINERS AND WIRE RETAINER MOUNTING SCREWS REMOVED FOR CLARITY.
5. 1A15 LCI MODULE (COMM = LCI) IS REMOVED WHEN 1A41 BACnet MODULE
(COMM = BCNT) IS USED.
DETAIL A
2
(FAN LOCATED BEHIND PANEL
2
1A36/1E1/1E2
1T2
1K8
1S1
1T1
1K9
1Q12 1Q13
1A38
1F5
1F6
1F7
1F1
1F2
1A2
1A18
1A19
5
1Q5
1Q6
1A7
1A17 1A22
B
1F40
1F39
1F38
1F16
1F15
1F14
1A5 1A9 or 1A26 1A4
A
1A25 1A12 1A21 1A14 1A16 1A15 1A13
3
1F321F331F34
C
1K2
1K1
1F11
1F12
1F13
1A41
1S2
1X5
1X6
1X7
5
1X4
1Q1/1X1
1
1X3
A
DOORS SHOWN OFF (WITH VENTILATED PANEL)
8
260
7
6
5
CG-SVX17C-EN
Unit Wiring
20-35 Ton - “Slant Frame” - Component Location
UNLESS OTHERWISE SPECIFIED ALL
DIMENSIONS ARE IN MILLIMETERS.
TOLERANCE:
M1
X,
= 5
X,X
= 3,0
X,XX = 1,50
ANGLES = 1
FINISH
DRAWN BY: J.Watts
~ HOLE DIA = +0,5
- 0,5
CONFORMS TO ASME Y14.5M - 1994
ETAIL A
TRANE
THIS DRAWING IS PROPRIETARY AND SHALL NOT BE COPIED OR ITS
CONTENTS DISCLOSED TO OUTSIDE PARTIES WITHOUT THE WRITTEN
CONSENT OF TRANE
c
TRANE DATE: 24-APR-2009
THIRD ANGLE PROJECTION
DO NOT SCALE PRINT
57206468
SHEET
1 OF 1
REV
B
DIAGRAM
COMPONENT LOCATION
(NAR)
SLANT UNIT
2
ED BEHIND PANEL)
1A1
DOOR SHOWN ON (WITH VENTILATED PANEL)
4
CG-SVX17C-EN
3
2
1
261
Unit Wiring
20-35 Ton - “Slant Frame” - Device Location
D
PARTIAL HEAT RECOVERY LEAVING WATER TE
PARTIAL HEAT RECOVERY ENTERING WATER TEMP
5B5
DYNAVIEW MAIN PROCESSOR MODULE
1A1
FAN MOTOR
3M4
C
FAN MOTOR
3M5
(USED ONLY WITH FRAME 2)
FAN MOTOR
3M9
COMPRESSOR 1A
3M1
COMPRESSOR J-BOX 1A
3M1A1
EVAP ENTERING WATER TEMP
5B2
PARTIAL HEAT RECOVERY HEATER
5E10
EVAPORATOR PIPING HEATER
5E4
B
EVAPORATOR PIPING HEATER
5E5
CRANKCASE HEATER 1A
3M1E1
EVAP LEAVING WATER TEM
5B1
COMPRESSOR 1B
3M2
COMPRESSOR J-BOX 1B
3M2A1
CRANKCASE HEATER 1B
3M2E1
SUCTION REFRIGERANT PRESSURE
3B1
EXPANSION VALVE, COOLING
3Y1
EVAP EMERSION HEATER
5E1
AMBIENT TEMP SENSOR
5B3
A
WATER FLOW SENSOR
5B4
8
262
7
6
5
CG-SVX17C-EN
Unit Wiring
20-35 Ton - “Slant Frame” - Device Location
UNLESS OTHERWISE SPECIFIED ALL
DIMENSIONS ARE IN MILLIMETERS.
TOLERANCE:
X,
=
X,X
=
X,XX = 
ANGLES = 
FINISH
TRANE
THIS DRAWING IS PROPRIETARY AND SHALL NOT BE COPIED OR ITS
CONTENTS DISCLOSED TO OUTSIDE PARTIES WITHOUT THE WRITTEN
CONSENT OF TRANE
c
DRAWN BY: A.BAHL

+
HOLE DIA = -
CONFORMS TO ASME Y14.5M - 1994
TRANE DATE: 14-JUL-2008
THIRD ANGLE PROJECTION
DO NOT SCALE PRINT
57206497
SHEET
1 OF 1
REV
B
ASSEMBLY
DEVICE LOCATION
SENSOR AND CH530
CGAM, SLANT UNIT
RY LEAVING WATER TEMP
5B6
TERING WATER TEMP
5B5
BP J-BOX
5X1
THERMOSTAT
5S1
A
DISCHARGE REFRIGERANT PRESSURE
3B3
MP
RY HEATER
HIGH PRESSURE CUTOUT SWITCH
3S1
NG HEATER
OR PIPING HEATER
DISCHARGE REFRIGERANT TEMP
3B4
P LEAVING WATER TEMP
SUCTION REFRIGERANT TEMP
3B2
DETAIL A
4
CG-SVX17C-EN
3
2
1
263
Unit Wiring
40-70 Ton - “V Frame” - Component Location
NOTES
1M1
51. COMPONENT 1X1 WILL REPLACE 1Q1 WHEN TERMINAL BLOCK OPTION IS SELECTED.
62. COMPONENT 1X2 WILL REPLACE 1Q3 WHEN TERMINAL BLOCK OPTION IS SELECTED.
1A41
53. COMPONENTS 1M1 AND 1S1 ARE USED ONLY WHEN THE VENTILATED PANEL IS REQUIRED.
D
4. COMPONENTS 1T2 AND 1T3 ARE USED ONLY WHEN THE 575V OPTION IS SELECTED.
6
5. WIRE RETAINERS AND WIRE RETAINER MOUNTING SCREWS REMOVED FOR CLARITY.
6. 1A15 LCI MODULE (COMM = LCI) IS REMOVED WHEN 1A41 BACnet MODULE
(COMM = BCNT) IS USED.
DETAIL B
DETAIL A
(1A41 BACnet MODULE SHOWN
1A15 LCI MODULE REMOVED)
3
1F7
1F5
1F6
1F39
1F40
1F10
1F2
1F38
1F9
1F8
1F15
1F16
1F1
1F19
1F14
1F18
1F4
1F17
1F3
1F46
1F44
1Q12
1A38
1A36
1A37
1Q13
1A9
1A3
1A6
1A26
1A5
1F45
1A39
1A7
1A21
1A12
1A25
1Q19
1Q18
1A22
1A17
B
1F34
1F33
1T1
1A18
1A14
1A20
1F32
6
1A16
B
1A19
1A15
1A13
C
1A2
1F13
1F12
1F11
(FAN LOCATED BEHIND PANEL)
1X6
1K14
1X5
1S2
1K15
A
1X7
1K9
1K8
1X4
A
DOORS SHOWN OFF (WI
8
264
7
6
5
CG-SVX17C-EN
Unit Wiring
40-70 Ton - “V Frame” - Component Location
UNLESS OTHERWISE SPECIFIED ALL
DIMENSIONS ARE IN MILLIMETERS.
TOLERANCE:
M1
X,
= 5
X,X
= 3,0
X,XX = 1,50
ANGLES = 1
FINISH
TRANE
THIS DRAWING IS PROPRIETARY AND SHALL NOT BE COPIED OR ITS
CONTENTS DISCLOSED TO OUTSIDE PARTIES WITHOUT THE WRITTEN
CONSENT OF TRANE
c
DRAWN BY: J.Watts
~ HOLE DIA = +0,5
- 0,5
CONFORMS TO ASME Y14.5M - 1994
TRANE DATE: 24-APR-2009
THIRD ANGLE PROJECTION
DO NOT SCALE PRINT
57206469
SHEET
1 OF 1
REV
B
DIAGRAM
COMPONENT LOCATION
(NAR)
V UNIT
1A1
DYNAVIEW IS MOUNTED
ON CONTROLS DOOR
A
3
HIND PANEL)
CKT1
CKT2
3
1F6
1S1
1T3
4
1T2
4
1Q8
1Q5
1F40
1Q6
1Q9
6
1K2
1K1
1K4
CKT1-1Q1/1X1
1K5
1
1X9
1X3
CKT2-1Q3/1X2
2
N OFF (WITH VENTILATED PANEL)
4
CG-SVX17C-EN
3
2
1
265
Unit Wiring
40-70 Ton - “V Frame” - Device Location
PARTIAL HEAT RECOVERY ENTERING WATER TEMP
5B5
PARTIAL HEAT RECOVERY HEATER
5E11
D
PARTIAL HEAT RECOVERY HEATER
5E10
COMPRESSOR 1A
3M1
FAN MOTOR
3M4
COMPRESSOR J-BOX 1A
3M1A1
PARTIAL HEAT RECOVERY
LEAVING WATER TEMP
5B6
COMPRESSOR 1B
3M2
DETAIL A COMPRESSOR J-BOX 1B
3M2A1
FAN MOTOR
3M5
(USED ONLY WITH FRAME 2)
C
FAN MOTOR
3M9
B
FAN MOTOR
4M9
C
A
B
CRANKC
4M2E1
D
CRANKCASE HEATER
3M1E1
CRANKCASE HEATER 1B
3M2E1
EXPANSION VALVE, COOLING, CKT1
3Y1
EXPANSION VALVE, COOLING, CKT2
4Y1
A
8
266
7
6
5
CG-SVX17C-EN
Unit Wiring
40-70 Ton - “V Frame” - Device Location
UNLESS OTHERWISE SPECIFIED ALL
DIMENSIONS ARE IN MILLIMETERS.
TOLERANCE:
X,
=
X,X
=
X,XX = 
ANGLES = 
FINISH
TRANE
THIS DRAWING IS PROPRIETARY AND SHALL NOT BE COPIED OR ITS
CONTENTS DISCLOSED TO OUTSIDE PARTIES WITHOUT THE WRITTEN
CONSENT OF TRANE
c
DRAWN BY: A.BAHL

+
HOLE DIA = -
B
DEVICE LOCATION
SENSOR AND CH530
CGAM, V UNIT
TRANE DATE: 13-MAR-2008
DO NOT SCALE PRINT
HIGH PRESSURE CUTOUT SWITCH, CKT1
3S1
REV
ASSEMBLY
THIRD ANGLE PROJECTION
CONFORMS TO ASME Y14.5M - 1994
SHEET
1 OF 1
57206498
SUCTION REFRIGERANT PRESSURE, CKT1
3B1
DISCHARGE REFRIGERANT PRESSURE, CKT1
3B3
SUCTION REFRIGERANT TEMP, CKT1
3B2
DISCHARGE REFRIGERANT TEMP, CKT2
3B4
FAN MOTOR
4M5
(USED ONLY WITH FRAME 2)
FAN MOTOR
4M4
DETAIL B
DISCHARGE REFRIGERANT PRESSURE, CKT2
4B3
DYNAVIEW MAIN PROCESSOR MODULE
1A1
HIGH PRESSURE CUTOUT SWITCH, CKT2
4S1
DISCHARGE REFRIGERANT TEMP, CKT2
4B4
SUCTION REFRIGERANT TEMP, CKT2
4B2
SUCTION REFRIGERANT PRESSURE, CKT2
4B1
COMPRESSOR 2A
4M1
THERMOSTAT
COMPRESSOR J-BOX 1A
4M1A1
BP J-BOX
5X1
CRANKCASE HEATER 2A
4M1E1
5S1
EVAP ENTERING WATER TEMP
5B2
COMPRESSOR 2B
4M2
COMPRESSOR J-BOX 2B
4M2A1
CRANKCASE HEATER 2B
4M2E1
EVAP EMERSION HEATER
5E1
DETAIL C
ANKCASE HEATER 1A
1E1
EVAPORATOR PIPING HEATER
HEATER 1B
5E4
AMBIENT TEMP SENSOR
5B3
CKT1
EVAPORATOR PIPING HEATER
5E5
WATER FLOW SENSOR
5B4
EVAP LEAVING WATER TEMP
5B1
DETAIL D
4
CG-SVX17C-EN
3
2
1
267
Unit Wiring
80-120 Ton - “W Frame” - Component Location
NOTES
61. COMPONENT 1X1 WILL REPLACE 1Q1 WHEN TERMINAL BLOCK OPTION IS SELECTED.
62. COMPONENT 1X2 WILL REPLACE 1Q3 WHEN TERMINAL BLOCK OPTION IS SELECTED.
3. COMPONENTS 1M1 AND 1S1 ARE USED ONLY WHEN THE VENTILATED PANEL IS REQUIRED.
D
4. COMPONENTS 1T2 AND 1T3 ARE USED ONLY WHEN THE 575V OPTION IS SELECTED.
1A41
5. WIRE RETAINERS AND WIRE RETAINER MOUNTING SCREWS REMOVED FOR CLARITY.
6. 1A15 LCI MODULE (COMM = LCI) IS REMOVED WHEN 1A41 BACnet MODULE
(COMM = BCNT) IS USED.
6
DETAIL B
(1A41 BACnet MODULE SHOWN
1A15 LCI MODULE REMOVED)
1A1
DYNAVIEW MOUNTED ABOVE
CONTROL PANEL ON UNIT FRAME
(F
C
2B/1K5
2A/1K4
1Q13
1Q12
1K10 1K11
1K9
1K8
2C/1K6
1K7
1S2
1Q11
1Q17
1X4
1X3
1X6
1X7
A
1X5
1Q14
1Q20
1Q19
1Q18
2A/1Q8
1X9 1K13 1K14 1K15 1K16 1K17
1A26
1A9
1T3
2B/1Q9
4
1A3
1A5
2C/1Q10
1F37/40
1F36/39
1F35/38
1Q15
1Q21
1F13
1F12
1A19
1A20
1A8
1A18
1A6
1A4
1A12 1A21
1A25
1A17 1A22
B
1A7
1A14
1A19
CKT1
1F43/46
1F42/45
1F41/44
1F11
1A15
6
1A16
B
CKT2
1A2
1A13
CKT2
A
DOORS SHOWN OFF (WITH
8
268
7
6
5
CG-SVX17C-EN
Unit Wiring
80-120 Ton - “W Frame” - Component Location
TRANE
UNLESS OTHERWISE SPECIFIED ALL
DIMENSIONS ARE IN MILLIMETERS.
TOLERANCE:
X,
= 3
X,X
= 1,5
THIS DRAWING IS PROPRIETARY AND SHALL NOT BE COPIED OR ITS
CONTENTS DISCLOSED TO OUTSIDE PARTIES WITHOUT THE WRITTEN
CONSENT OF TRANE
FINISH
X,XX = 0,08
ANGLES = 1
DRAWN BY: J. WATTS
+0,5
- 0,5
HOLE DIA =
CONFORMS TO ASME Y14.5M - 1994
c
SHEET
1 OF 1
57206470
REV
B
DIAGRAM
COMPONENT DIAGRAM
(NAR)
W UNIT
TRANE DATE: 24-APR-2008
THIRD ANGLE PROJECTION
DO NOT SCALE PRINT
1M1
DETAIL A 3
(FAN LOCATED BEHIND PANEL)
CKT1
KT1
1F37/40
1F36/39
1F35/38
3
1F5
1F6
1B/1Q6
1C/1Q7
1T2
1A/1Q5
4
1A36
1K10 1K11
1A37
1T1
1S1
1F32 1F33 1F34
1Q11
1Q12
1Q13
1Q14
1Q15
1F4
1F3
1F2
1F11
1F19
1F18
1F17
1F16
1F15
1F14
1K9
CKT2-1Q3/1X2
1K8
2
1B/1K2
1
1A/1K1
1X3
1K7
1C/1K3
CKT1-1Q1/1X1
OFF (WITH VENTILATED PANEL)
4
CG-SVX17C-EN
3
2
1
269
Unit Wiring
80-120 Ton - “W Frame” - Device Location
NOTE:
1 REMOVE 3M7 & 4M7 ON UNITS WITH 4-FANS PER CIRCUIT.
REMOVE 3M6, 4M6, 3M7, & 4M7 ON UNITS WITH 3-FANS PER CIRCUIT.
REMOVE 3M5, 4M5, 3M6, 4M6, 3M7, & 4M7 ON UNITS WITH 2-FANS PER CIRCUIT.
HIGH PRESSURE CUTOUT SWITCH, CKT1
3S1
DISCHARGE REFRIGERANT TEMP, CK1
3B4
D
EVAPORATOR PIPING HEATER
5E4
DISCHARGE REFRIGERANT PRESSURE, CKT1
3B3
EVAPORATOR PIPING HEATER
5E5
SUCTION REFRIGERANT PRESSURE, CKT1
3B1
SUCTION REFRIGERANT TEMP, CKT1
3B2
DYNAVIEW MAIN PROCESSOR MODULE
1A1
AMBIENT TEMP SENSOR
5B3
DETAIL A
1
FAN MOTOR
3M5
FAN MOTOR
4M4
COMPRESSOR 1C
C
3M3
FAN MOTOR
3M4
COMPRESSOR 1B
3M2
COMPRESSOR 1A
3M1
FAN MOTOR
4M5
1
WATER FLOW SENSOR
5B4
FAN MOTOR
4M6
FAN MOTOR
3M6
BP J-B
5
1
EVAP LEAVING W
1
FAN MOTOR
4M7
FAN MOTOR
3M7
1
EX
1
FAN MOTOR
3M9
B
A
COMPRESSOR J-BOX 1A
3M1A1
CRANKCASE HEATER 1A
3M1E1
COMPRESSOR J-BOX 1B
3M2A1
CRANKCASE HEATER 1B
3M2E1
COMPRESSOR J-BOX 1C
3M3A1
CRANKCASE HEATER 1C
3M3E1
THERMOSTAT
5S1
A
8
270
7
6
5
CG-SVX17C-EN
Unit Wiring
80-120 Ton - “W Frame” - Device Location
UNLESS OTHERWISE SPECIFIED ALL
DIMENSIONS ARE IN MILLIMETERS.
TOLERANCE:
X,
=
X,X
=
X,XX = ANGLES = FINISH
TRANE
THIS DRAWING IS PROPRIETARY AND SHALL NOT BE COPIED OR ITS
CONTENTS DISCLOSED TO OUTSIDE PARTIES WITHOUT THE WRITTEN
CONSENT OF TRANE
+
HOLE DIA = -
TRANE DATE: 22-JUL-2008
THIRD ANGLE PROJECTION
DO NOT SCALE PRINT
CONFORMS TO ASME Y14.5M - 1994
EATER
5E4
c
DRAWN BY: A. BAHL
~
57206499
SHEET
1 OF 1
REV
A
ASSEMBLY
DEVICE LOCATION
HEATER, SENSOR, AND CH530
CGAM, W UNIT
EVAP ENTERING WATER TEMP
5B2
COMPRESSOR 2C
4M3
COMPRESSOR 2B
4M2
COMPRESSOR 2A
4M1
B
BP J-BOX
5X1
VING WATER TEMP
5B1
EXPANSION VALVE, COOLING, CKT2
4Y1
EXPANSION VALVE, COOLING, CKT1
3Y1
COMPRESSOR J-BOX 2C
4M3A1
FAN MOTOR
4M9
CRANKCASE HEATER 2C
4M3E1
COMPRESSOR J-BOX 2B
4M2A1
CRANKCASE HEATER 2B
4M2E1
COMPRESSOR J-BOX 2A
4M1A1
CRANKCASE HEATER 2A
4M1E1
DISCHARGE REFRIGERANT TEMP, CKT2
4B4
HIGH PRESSURE CUTOUT SWITCH, CKT2
4S1
DISCHARGE REFRIGERANT PRESSURE, CKT2
4B3
SUCTION REFRIGERANT PRESSURE, CKT2
4B1
DETAIL B
4
CG-SVX17C-EN
3
SUCTION REFRIGERANT TEMP.
4B2
2
1
271
Literature Order Number
CG-SVX17C-EN
Date
February 2010
Supersedes
CG-SVX17B-EN (July 2009)
Trane
www.trane.com
For more information, contact your local Trane
office or e-mail us at comfort@trane.com
Trane has a policy of continuous product and product data improvement and reserves the right to
change design and specifications without notice.
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