Screw Compressor Air Cooled Packages ACDX-B, AUDX-B

Screw Compressor Air Cooled Packages ACDX-B, AUDX-B
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ACDX-B / AUDX-B
Screw Compressor
Air Cooled Packages
48 Through 208 Tons
Installation, Operation & Maintenance Instructions
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Form No. 6122B
TABLE OF CONTENTS
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Page
1.0 General Information
1.1
1.2
1.3
Introduction ................................................................................................................................ 5
Physical Specifications - English I.P. Units ............................................................................. 6 - 8
Physical Specifications - Metric S. I. Units ........................................................................... 9 - 11
2.0 Installation
2.1
2.2
2.3
General Installation Instructions .............................................................................................. 12
Inspection ................................................................................................................................. 12
Handling, Storage and Rigging ................................................................................................ 12
2.3.1
2.3.2
2.3.3
2.4
2.5
2.6
2.7
2.8
2.9
2
General Handling Instructions ..........................................................................................................
Storage ............................................................................................................................................
Rigging and Moving .........................................................................................................................
2.3.3.1
Rigging Instruction Drawing ...........................................................................................
12
12
12
12
Space and Clearance Requirements ......................................................................................... 13
2.4.1 General Space and Clearance Requirements .................................................................................... 13
2.4.2 Service Clearance Requirements ....................................................................................................... 13
2.4.3 Location and Installation Clearance ................................................................................................. 14
2.4.4 ACDX-B and AUDX-B Dimensional Data ....................................................................................... 15-24
Point Loading and Vibration Isolation ..................................................................................... 25
2.5.1 Foundation and Mounting Structure ................................................................................................ 25
2.5.2 Vibration Isolation ACDX-B / AUDX-B ................................................................................................ 25
2.5.3 ACDX-B Unit Wts. and Point Loading I.P. English Units ..................................................................... 26
2.5.4 ACDX-B Unit Wts. and Point Loading S.I. Metric Units ...................................................................... 27
2.5.5 AUDX-B Unit Wts. and Point Loading I.P. English Units ..................................................................... 28
2.5.6 AUDX-B Unit Wts. and Point Loading S.I. Metric Units ..................................................................... 29
Vibration Isolation Requirements ............................................................................................ 30
2.6.1 ACDX-B RIS Vibration Isolator - Alum. Fin Condenser ....................................................................... 30
2.6.2 ACDX-B Spring Vibration Isolator - Alum. Fin Condenser .................................................................. 31
2.6.3 ACDX-B RIS Vibration Isolator - Copper Fin Condenser ..................................................................... 32
2.6.4 ACDX-B Spring Vibration Isolator - Copper Fin Condenser ............................................................... 33
2.6.5 AUDX-B RIS Vibration Isolator - Alum. Fin Condenser ....................................................................... 34
2.6.6 AUDX-B Spring Vibration Isolator - Alum. Fin Condenser ................................................................. 35
2.6.7 AUDX-B RIS Vibration Isolator - Copper Fin Condenser ..................................................................... 36
2.6.8 AUDX-B Spring Vibration Isolator - Copper Fin Condenser ............................................................... 37
Piping Connections: ACDX-B / AUDX-B .................................................................................... 38
2.7.1 ACDX-B Chilled Water Piping ............................................................................................................ 38
2.7A
Typical Chilled Water Piping -Three Way Bypass .............................................................. 40
2.7B
Typical Chilled Water Piping -Two Way Bypass ................................................................ 40
2.7.2 Multiple Chiller Water Piping ........................................................................................................... 38
2.7.2.1
Parallel Multiple Chiller Water Piping .............................................................................. 38
2.7C
Typical Parallel Chiller Chilled Water Piping ..................................................................... 40
2.7.2.2
Series Multiple Chiller Water Piping ................................................................................ 39
2.7D
Typical Series Chiller Chilled Water Piping ....................................................................... 40
2.7.3 ACDX-B Chilled Water Quality .......................................................................................................... 39
2.7.4 AUDX-B Condensing Unit Connections ............................................................................................. 39
2.7.4.1
General Condensing Unit Connections Applications ....................................................... 39
2.7E
Condensing Unit Typical Hot Gas Bypass Piping .............................................................. 40
Electrical Connections: ACDX-B / AUDX-B ................................................................................ 41
2.8.1 Field Control Wiring ......................................................................................................................... 41
2.8.2 General Electrical Notes ................................................................................................................... 41
2.8.3 Electrical Data: Units and Compressors ...................................................................................... 42-46
2.8.4 Compressor Crankcase & Cooler Heaters .......................................................................................... 47
2.8.5
Field Connection Terminal Blocks and Fan Data ............................................................................... 48
Refrigerant Charging Procedure .............................................................................................. 49
2.9.1
General Refrigerant Charging Procedures ........................................................................................ 49
2.9A
Refrigerant Line Capacities .............................................................................................................. 49
2.9.2
AUDX-B Refrigerant Charge Calculation ........................................................................................... 49
2.9.3
AUDX-B Refrigerant Charging Procedure ......................................................................................... 49
TABLE OF CONTENTS
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Page
3.0 Operation - Mechanical Systems
3.1
3.2
Qualified Unit Start-up Report (Required for Warranty) ......................................................... 50
Typical Refrigerant Piping ......................................................................................................... 50
3.2A
3.2B
3.3
3.4
3.5
3.6
3.7
3.8
3.9
Typical ACDX-B 048 - 138 Packaged Chiller Refrig. Piping ................................................................. 51
Typical AUDX-B 048 - 138 Condensing Unit Refrig. Piping ................................................................. 52
Pre-start-up Procedure for ACDX-B and AUDX-B Systems ........................................................ 53
Start-up and Reporting for ACDX-B and AUDX-B Systems ....................................................... 53
System Flow Rate ACDX-B / AUDX-B ........................................................................................ 54
Table 3.5A
Cooler Curve - Legend ............................................................................................................. 54
Figure 3.5B Cooler - Water Side Pressure Drop ........................................................................................... 55
Compressor Lubrication ........................................................................................................... 56
3.6.1 Oil Level ............................................................................................................................................ 56
3.6.2 Recommended Oil ............................................................................................................................. 56
3.6.3 Oil Analysis ....................................................................................................................................... 56
3.6.4 Procedure for Adding / Changing Oil ................................................................................................ 56
3.6.5 Compressor Repairs (Internal) ........................................................................................................... 56
3.6.6 Compressor Repairs (External) ........................................................................................................... 56
Hydraulic Capacity Control ACDX-B and AUDX-B ..................................................................... 56
3.7.1 Operation of the Unloader ................................................................................................................ 57
3.7.2 Adjusting Rate of Slide Valve Travel .................................................................................................. 57
3.7.3 Field Checks ...................................................................................................................................... 57
3.7.4 Troubleshooting ................................................................................................................................ 58
3.7.5 General Notes ................................................................................................................................... 58
Low Ambient Operation ........................................................................................................... 59
3.8.1 Condenser Head Pressure Control ..................................................................................................... 59
3.8.2 Standard Factory Installed Fan Cycling .............................................................................................. 59
3.8.3 Optional Variable Speed Fan Cycling ................................................................................................. 59
3.8.4 Cooler Freeze Protection - Low Ambient ........................................................................................... 59
Fan Location and Staging ......................................................................................................... 59
4.0 Operation - Microcomputer Control
4.1
4.2
Electrical Controls Description ............................................................................................ 60-61
Typical Control Sequence of Operation .................................................................................... 62
4.2.1
4.2.2
4.3
Stage-Up Sequence ......................................................................................................................... 62
Stage-Down and Shut-Off Sequence ............................................................................................... 62
Microcomputer Controller ........................................................................................................ 63
4.3.1
General Description ......................................................................................................................... 63
Figure 64A Microcomputer Keypad .............................................................................................................. 63
Figure 64B Microcomputer Instruction Label ............................................................................................... 63
4.3.2
Microcomputer Hardware Precautions ............................................................................................ 64
4.3.3
Operation of LCD Display NC 25-4 ................................................................................................... 64
4.3.3.1
To Display data from menu ........................................................................................... 64
4.3.3.2
To Reset All Control Points to Computer Control ........................................................... 64
4.3.3.3
To Display Alarms .......................................................................................................... 64
4.3.3.4
To Become Authorized .................................................................................................. 64
4.3.3.5
To Alter Setpoint Data ................................................................................................... 65
4.3.3.6
To Calibrate Temperature and Pressure Sensors ............................................................. 65
4.3.3.7
To Set Date And Time .................................................................................................... 65
4.3.3.8
To Display Data without Accessing Menu ...................................................................... 65
4.3.3.9
To Revise Unit Schedule of Operation (Optional) ........................................................... 65
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TABLE OF CONTENTS
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Page
4.4
ACDX-B / AUDX-B Package Control ........................................................................................... 66
4.4.1
4.4.2
4.4.3
4.4.4
4.4.5
4.4.6
4.4.7
4.4.8
4.4.9
4.4.10
4.4.11
4.4.12
4.4.13
4.4.14
4.4.15
4.4.16
4.4.17
4.4.18
4.4.19
4.4.20
4.4.21
4.4.22
4.4.23
4.4.24
4.5
4.6
4.7
4.8
Typical
Typical
Typical
Typical
Capacity Control for Screw Compressors .........................................................................................
4.4.1.1
Automatic Control ........................................................................................................
4.4.1.2
Manual Control .............................................................................................................
Staging of Compressors ..................................................................................................................
Compressor Current Limiting ..........................................................................................................
Ramp Control ..................................................................................................................................
Manual Lead/Lag Selection ..............................................................................................................
Compressor Start Delay ...................................................................................................................
Power Loss Reset ............................................................................................................................
Anti-Recycle Timing .........................................................................................................................
Low Pressure Safety ........................................................................................................................
High Pressure Safety ........................................................................................................................
Freeze Safety ...................................................................................................................................
Alarm Output ..................................................................................................................................
Ran Control .....................................................................................................................................
Chilled Water Reset (Optional) and Customer Control Interlock ......................................................
Hot Gas Bypass Control (Optional) ..................................................................................................
Compressor Power Control (No-Stop Alarm) and Unit Schedule ......................................................
Sensor Alarm Shutdown ..................................................................................................................
External Shutdown Indication (No-Run Alarm) ................................................................................
Fast Unload Solenoid Control ..........................................................................................................
High Motor Temperature Safety ......................................................................................................
Low Chiller Flow Alarm ...................................................................................................................
High Discharge Pressure Unload ......................................................................................................
Low Suction Pressure ......................................................................................................................
Low Oil Level Alarm .........................................................................................................................
66
66
67
67
67
67
68
68
68
68
68
68
68
68
68
68
68
68
69
69
69
69
69
69
69
69
Power Wiring (Single Compressor Model) ................................................................... 70
Control Wiring (Single Compressor Model) ............................................................ 71, 72
Power Wiring (Three Compressor Model) ............................................................... 73, 74
Control Wiring (Three Compressor Model) ............................................................. 75, 78
5.0 Maintenance
5.1
5.2
5.3
5.4
General Maintenance ............................................................................................................... 79
Periodic Inspection ................................................................................................................... 79
Monthly Inspection .................................................................................................................. 79
Vessel Maintenance .................................................................................................................. 79
5.4.1
5.4.2
General Unit Efficiency and Performance ........................................................................................ 79
Cooler Cleaning ............................................................................................................................... 79
5.5 Air Cooled Condenser Cleaning ............................................................................................... 79
5.6 Electrical Malfunction ............................................................................................................... 79
5.7 Troubleshooting ....................................................................................................................... 80
5.8 Start-Up and Maintenance Log Sheet ................................................................................. 81-82
5.9 Start-Up Check List ................................................................................................................... 83
5.10 Temperature and Pressure Table ............................................................................................... 84
5.11 Notes ....................................................................................................................................................... 85
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1.0 GENERAL INFORMATION
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1.1 Introduction
This manual is designed to provide all necessary
information for installation, operation and
maintenance of the latest generation of Dunham-Bush
screw compressor package units. These packages
include air cooled water chiller machines, and air cooled
condensing units.
To use this manual effectively, you must first determine
your unit model number from the unit nameplate.
Since this manual is comprehensive for a wide variety
of units, you should be careful to use only those
sections which apply to your model. Note that each
section is clearly marked as to the applicable models.
The AUDX-B is a condensing unit without a mounted
evaporator. It is designed for remote DX water chiller
or air cooling coil applications. Due to the evaporator
being remotely mounted, the AUDX-B machine is given
a factory electrical test only.
To assure satisfactory operation and to avoid damage
to the unit, the installation should be made by a
qualified refrigeration mechanic. It is assumed that
the reader of his manual and those who install, operate
and maintain this equipment have a basic
understanding of the principles of air conditioning,
refrigeration and electrical controls. These instructions
are general in nature and are for standard catalog units.
Non-standard units may vary in some respects from
these instructions.
Your Dunham-Bush package has been manufactured
under a careful quality control system and has been
factory run tested as a final verification of reliability. If
it is installed, operated and maintained with care and
attention to these instructions, it will give many years
of satisfactory service.
Air Cooled Packaged Chiller Models and Condensing Units for Use with
DX Coil Banks or Remote Coolers for Split-System Chillers
MODEL
ACDXB / AUDXB
UNIT SIZE
048B, 058B, 068B
098B, 108B, 118B, 128B, 138B
148B, 158B, 178B, 188B, 198B, 208B
DESCRIPTION
1 Compressor - 1 Refrigerant Circuit
2 Compressors - 2 Refrigerant Circuits
3 Compressors - 3 Refrigerant Circuits
1.2 Product Identification
A
C
D
X 048
B AR
S
Compact
Standard
Extended
Air Cooled
C = Packaged Chiller
AK 200/3/60
AN 230/3/60
AU 400/3/50
AR 460/3/60
AS 575/3/60
Direct Expansion Evaporator
Screw Compressor
B = Model Generation
(1) Compressor, 1 Circuit
(2) Compressors, 2 Circuits
(3) Compressors, 3 Circuits
Nominal Tons
WARNING
THE COMPRESSORS SHOULD BE STARTED INITIALLY “ONLY” UNDER THE DIRECT
SUPERVISION OF A DUNHAM-BUSH, INC. SERVICE EMPLOYEE OR AN AUTHORIZED
DUNHAM-BUSH, INC. START-UP AGENCY.
5
1.0 GENERAL INFORMATION (CONT.)
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1.3 Physical Specifications: English I.P.
ACDX-B 48, 58, 68, 98, 108
ACDX-B MODEL
48
58
68
98
108
1111(1)
1113(1)
1117(1)
1111(2)
1111(1) 1113(1)
5.8
5.8
5.8
5.8
5.8
COMPRESSORS
Model (Qty.)
Oil Charge per Compressor (Gal)
Oil Type
Dunham-Bush Karlube #2
Oil Lubrication
Differential Pressure
% Capacity Reduction
Crankcase Heater Watts/Compr.
STANDARD COOLER
20%
20%
20%
10%
10%
400W
400W
400W
400W
400W
CHSO11601B
CHSO11601B CHSO13601B
EXD14102J09 EXD16122J11(6)
Water Volume, Gallons
11
11
17
30
46
Minimum Flow Rate, GPM
86
86
101
140
159
Maximum Flow Rate, GPM
Water Conn. Size In/Out (Type)
COOLER FOR 42°F LWT
304
304
407
428
443
4" (NPT)
4" (NPT)
4" (NPT)
5" (VIC)
6” (VIC)
CHSO11601B
CHSO13601B CHSO13601B
EXD14102J09 EXD16122J11(6)
Water Volume, Gallons
11
17
17
30
46
Minimum Flow Rate, GPM
86
101
101
140
159
Maximum Flow Rate, GPM
Water Conn. Size In/Out (Type)
COOLER FOR 40°F LWT
304
407
407
428
443
4" (NPT)
4" (NPT)
4" (NPT)
5" (VIC)
6” (VIC)
CHSO13601A
CHSO13601B CHSO13601B EXD16122J11(5) EXD16122J11(5)
Water Volume, Gallons
17
17
17
46
46
Minimum Flow Rate, GPM
81
101
101
159
159
Maximum Flow Rate, GPM
Water Conn. Size In/Out (Type)
220
407
407
443
443
4" (NPT)
4" (NPT)
4" (NPT)
6" (VIC)
6” (VIC)
CONDENSER
Compact Length Model - Fan Quantity(1)
N/A
4
4
6
6
Standard Length Model - Fan Quantity(1)
4
6
6
8
8
Extended Length Model - Fan Quantity(1)
Nominal RPM(2) 60 Hz
6
8
8
10
10
1140
1140
1140
1140
1140
Nominal Motor HP (each)(2)
1.5
1.5
1.5
1.5
1.5
Nominal Motor kW (each)(2)
1.60
1.60
1.60
1.60
1.60
Minimum Starting/Operating Ambient °F(3)
20
20
20
20
20
w/Low Ambient Option, °F (VAR SPD)(3)
0
0
0
0
0
-20
-20
-20
-20
-20
1
1
1
2
2
119
152
172
242
270
Shipping Weight, lbs. (AL Fin/CU Fin)
N/A
3922/4424
4085/4587
6454/7216
6971/7733
Operating Weight, lbs. (AL Fin/CU Fin)
N/A
4015/4517
4219/4721
6704/7466
7324/8086
Shipping Weight, lbs. (AL Fin/CU Fin)
3840/4342
4735/5493
4929/5815
7400/8410
7917/8307
Operating Weight, lbs. (AL Fin/CU Fin)
3915/4417
4828/5586
5063/5949
7650/8660
8270/8660
GENERAL
w/Extra Low Ambient Option, °F
(4)
Number of Circuits
Refrigerant Charge, lbs. R-22
COMPACT (C) UNIT WEIGHTS
STANDARD (S) UNIT WEIGHTS
EXTENDED (E) UNIT WEIGHTS
Shipping Weight, lbs. (AL Fin/CU Fin)
4584/5342
5809/6819
6071/6982
8714/9986
8611/9883
Operating Weight, lbs. (AL Fin/CU Fin)
4659/5417
5902/6912
6205/7116
8964/10236
8964/10236
NOTES:
6
(1)
(2)
(3)
(4)
(5)
(6)
Low Ambient option utilizes two (2) variable speed fan motors in place of standard motors.
Extra Quiet Models utilize 855 RPM fan motors rated at 1.0 HP and .61 kW.
Min. Starting/Operating Ambient assumes a 5 MPH max. wind and a 50% min. chiller load.
Same as note (3) except the use of an Electronic Expansion Valve is required.
Not available for compact models in this size. (Consult Factory)
EXD16112J11DVRO used on compact unit; water volume = 43 gallons, min. flow = 175 GPM, max flow = 519 GPM
1.0 GENERAL INFORMATION (CONT.)
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1.3 Physical Specifications: English I.P.
ACDX-B 118, 128, 138, 148, 158
ACDX-B MODEL
118
128
138
148
158
1113(2)
1111(1) 1113(1)
1117(2)
1111(3)
1111(2) 1113(1)
5.8
5.8
5.8
5.8
5.8
COMPRESSORS
Model (Qty.)
Oil Charge per Compressor (Gal)
Oil Type
Dunham-Bush Karlube #2
Oil Lubrication
Differential Pressure
% Capacity Reduction
Crankcase Heater Watts/Compr.
STANDARD COOLER
10%
10%
10%
8%
8%
400W
400W
400W
400W
400W
EXD16122J09
EXD16122J09
Water Volume, Gallons
46
46
46
60
60
Minimum Flow Rate, GPM
191
191
236
267
267
Maximum Flow Rate, GPM
EXD16122J07 EXT18122J07
EXT18122J07
536
536
677
1030
1030
6" (VIC)
6" (VIC)
6" (VIC)
8" (VIC)
8” (VIC)
COOLER FOR 42°F LWT
EXD16122J09
EXD16122J09
Water Volume, Gallons
46
46
46
60
60
Minimum Flow Rate, GPM
191
191
236
267
267
Water Conn. Size In/Out (Type)
Maximum Flow Rate, GPM
EXD16122J07 EXT18122J07
EXT18122J07
536
536
677
1030
1030
6" (VIC)
6" (VIC)
6" (VIC)
8" (VIC)
8” (VIC)
COOLER FOR 40°F LWT
EXD16122J11
EXD18122J11
Water Volume, Gallons
46
60
60
68
68
Minimum Flow Rate, GPM
159
177
177
183
220
Water Conn. Size In/Out (Type)
Maximum Flow Rate, GPM
Water Conn. Size In/Out (Type)
EXD18122J11 EXT20122J11
EXT20122J09
443
604
604
604
738
6” (VIC)
8” (VIC)
8” (VIC)
10” (VIC)
10” (VIC)
CONDENSER
Compact Length Model - Fan Quantity(1)
8
8
10
12
12
Standard Length Model - Fan Quantity(1)
10
10
12
14
14
Extended Length Model - Fan Quantity(1)
Nominal RPM(2) 60 Hz
12
12
14
18
18
1140
1140
1140
1140
1140
Nominal Motor HP (each)(2)
1.5
1.5
1.5
1.5
1.5
Nominal Motor kW (each)(2)
1.60
1.60
1.60
1.60
1.60
Minimum Starting/Operating Ambient °F(3)
20
20
20
20
20
w/Low Ambient Option, °F (VAR SPD)(3)
0
0
0
0
0
-20
-20
-20
-20
-20
2
2
2
3
3
302
317
342
385
411
Shipping Weight, lbs. (AL Fin/CU Fin)
8045/9053
8045-9053
8759/10031
11016/12550
11016/12550
Operating Weight, lbs. (AL Fin/CU Fin)
8430/9438
8430/9438
9144/10416
11530/13064
11530/13064
Shipping Weight, lbs. (AL Fin/CU Fin)
8759/10031
8759/10031
9313/10841
11690/13480
11690/13480
Operating Weight, lbs. (AL Fin/CU Fin)
9144/10416
9144/10416
9698/11226
12204/13994
12204/13394
GENERAL
(4)
w/Extra Low Ambient Option, °F
Number of Circuits
Refrigerant Charge, lbs. R-22
COMPACT (C) UNIT WEIGHTS
STANDARD (S) UNIT WEIGHTS
EXTENDED (E) UNIT WEIGHTS
Shipping Weight, lbs. (AL Fin/CU Fin)
9313/10841
9313/10841
10062/11829 12890/15192
12890/15192
Operating Weight, lbs. (AL Fin/CU Fin)
9698/11226
9698/11226
10447/12214 13404/15706
13404/15706
NOTES:
(1)
(2)
(3)
(4)
Low Ambient option utilizes two (2) variable speed fan motors in place of standard motors.
Extra Quiet Models utilize 855 RPM fan motors rated at 1.0 HP and .61 kW.
Min. Starting/Operating Ambient assumes a 5 MPH max. wind and a 50% min. chiller load.
Same as note (3) except the use of an Electronic Expansion Valve is required.
7
1.0 GENERAL INFORMATION (CONT.)
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
1.3 Physical Specifications: English I.P.
ACDX-B 178, 188, 198, 208
ACDX-B MODEL
178
188
198
208
1113(3)
1113(2) 1117(1)
1117(2) 1113(1)
1117(3)
5.8
5.8
5.8
COMPRESSORS
Model (Qty.)
Oil Charge per Compressor (Gal)
5.8
Oil Type
Dunham-Bush Karlube #2
Oil Lubrication
Differential Pressure
% Capacity Reduction
Crankcase Heater Watts/Compr.
STANDARD COOLER
Water Volume, Gallons
8%
8%
8%
8%
400W
400W
400W
400W
EXT18122J07
EXT18122J07
EXT20122J07
EXT20122J07
60
60
68
68
298
Minimum Flow Rate, GPM
267
267
298
Maximum Flow Rate, GPM
1030
1030
881
881
8" (VIC)
8" (VIC)
10" (VIC)
10" (VIC)
COOLER FOR 42°F LWT
EXT18122J07
EXT18122J07
EXT20122J07
EXT20122J07
Water Volume, Gallons
60
60
68
68
298
Water Conn. Size In/Out (Type)
Minimum Flow Rate, GPM
267
267
298
Maximum Flow Rate, GPM
1030
1030
881
881
8" (VIC)
8" (VIC)
10" (VIC)
10" (VIC)
COOLER FOR 40°F LWT
EXT20122J09
EXT20122J09
EXT20122J07
EXT20122J07
Water Volume, Gallons
68
68
68
68
Water Conn. Size In/Out (Type)
Minimum Flow Rate, GPM
220
220
298
298
Maximum Flow Rate, GPM
738
738
881
881
10” (VIC)
10” (VIC)
10” (VIC)
10” (VIC)
Compact Length Model - Fan Quantity(1)
12
12
14
14
(1)
14
14
16
16
Extended Length Model - Fan Quantity(1)
18
18
18
18
1140
1140
1140
1140
Water Conn. Size In/Out (Type)
CONDENSER
Standard Length Model - Fan Quantity
Nominal RPM(2) 60 Hz
Nominal Motor HP (each)(2)
1.5
1.5
1.5
1.5
Nominal Motor kW (each)(2)
1.60
1.60
1.60
1.60
Minimum Starting/Operating Ambient °F(3)
20
20
20
20
w/Low Ambient Option, °F (VAR SPD)(3)
0
0
0
0
-20
-20
-20
-20
3
3
3
3
463
489
515
541
Shipping Weight, lbs. (AL Fin/CU Fin)
11016/12550
11016/12550
11589/13379
11589/13378
Operating Weight, lbs. (AL Fin/CU Fin)
11530/13064
11530/13064
12204/13994
12204/13994
GENERAL
w/Extra Low Ambient Option, °F
(4)
Number of Circuits
Refrigerant Charge, lbs. R-22
COMPACT (C) UNIT WEIGHTS
STANDARD (S) UNIT WEIGHTS
Shipping Weight, lbs. (AL Fin/CU Fin)
11690/13480
11690/13480
12191/14237
12191/14237
Operating Weight, lbs. (AL Fin/CU Fin)
12204/13994
12204/13394
12806/14852
12806/14852
EXTENDED (E) UNIT WEIGHTS
Shipping Weight, lbs. (AL Fin/CU Fin)
12890/15192
12890/15192
12789/15091
12789/15091
Operating Weight, lbs. (AL Fin/CU Fin)
13404/15706
13404/15706
13404/15706
13404/15706
NOTES:
8
(1)
(2)
(3)
(4)
Low Ambient option utilizes two (2) variable speed fan motors in place of standard motors.
Extra Quiet Models utilize 855 RPM fan motors rated at 1.0 HP and .61 kW.
Min. Starting/Operating Ambient assumes a 5 MPH max. wind and a 50% min. chiller load.
Same as note (3) except the use of an Electronic Expansion Valve is required.
1.0 GENERAL INFORMATION (CONT.)
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
1.3 Physical Specifications: S.I. Units
ACDX-B 48, 58, 68, 98, 108
ACDX-B MODEL
48
58
68
98
108
1111(1)
1113(1)
1117(1)
1111(2)
1111(1) 1113(1)
5.8
5.8
5.8
5.8
5.8
COMPRESSORS
Model (Qty.)
Oil Charge per Compressor (Liters)
Oil Type
Dunham-Bush Karlube #2
Oil Lubrication
Differential Pressure
% Capacity Reduction
Crankcase Heater Watts/Compr.
20%
20%
20%
10%
10%
400W
400W
400W
400W
400W
EXD14102J09 EXD16122J11(6)
STANDARD COOLER
CHSO11601B
Water Volume, Liters
41.6
41.6
64.3
113.6
174.1
Minimum Flow Rate, Liters/Sec.
5.43
5.43
6.47
8.83
10.03
Maximum Flow Rate, Liters/Sec.
Water Conn. Size In/Out mm (Type)
COOLER FOR 5.6°C LWT
CHSO11601B CHSO13601B
19.18
19.18
25.68
27.00
27.95
101.6 (NPT)
101.6 (NPT)
101.6 (NPT)
127.0 (VIC)
152.4 (VIC)
EXD14102J09
EXD16122J11
Water Volume, Liters
CHSO11601B
41.6
CHSO13601B CHSO13601B
64.3
64.3
113.6
174.11
Minimum Flow Rate, Liters/Sec.
5.43
6.37
6.37
8.83
10.03
Maximum Flow Rate, Liters/Sec.
19.18
25.68
25.68
27.00
27.95
Water Conn. Size In/Out (Type)
101.6 (NPT)
101.6 (NPT)
101.6 (NPT)
127.0 (VIC)
152.4 (VIC)
COOLER FOR 4.4°C LWT
CHSO13601A
CHSO13601B CHSO13601B EXD16122J11(5) EXD16122J11(5)
Water Volume, Liters
64.3
64.3
64.3
174.1
174.1
Minimum Flow Rate, Liters/Sec.
5.12
6.37
6.37
10.03
10.03
Maximum Flow Rate, Liters/Sec.
Water Conn. Size In/Out mm (Type)
13.90
25.68
25.68
27.95
27.95
101.6 (NPT)
101.6 (VIC)
101.6 (VIC)
152.4 (VIC)
152.4 (VIC)
CONDENSER
Compact Length Model - Fan Quantity(1)
N/A
4
4
6
6
Standard Length Model - Fan Quantity(1)
4
6
6
8
8
Extended Length Model - Fan Quantity(1)
6
8
8
10
10
Nominal RPM(2) 60 Hz
1140
1140
1140
1140
1140
Nominal Motor kWi (each)(2)
1.60
1.60
1.60
1.60
1.60
-6.7
-6.7
-6.7
-6.7
-6.7
-17.8
-17.8
-17.8
-17.8
-17.8
-28.9
-28.9
-28.9
-28.9
-28.9
GENERAL
Minimum Starting/Operating Ambient °C(3)
w/Low Ambient Option, °C (VAR SPD)
w/Extra Low Ambient Option, °C(4)
Number of Circuits
Refrigerant Charge, lbs. R-22
(3)
1
1
1
2
2
54
69
78
110
123
COMPACT (C) UNIT WEIGHTS
Shipping Weight, kg (AL Fin/CU Fin)
N/A
1780/2008
1855/2082
2930/3276
3165/3511
Operating Weight, kg (AL Fin/CU Fin)
N/A
1823/2051
1915/2143
3044/3390
3325/3671
STANDARD (S) UNIT WEIGHTS
Shipping Weight, kg (AL Fin/CU Fin)
1743/1971
2150/2494
2238/2640
3360/3818
3594/3771
Operating Weight, kg (AL Fin/CU Fin)
1777/2005
2192/2536
2299/2701
3473/3932
3755/3932
Shipping Weight, kg (AL Fin/CU Fin)
2081/2425
2637/3096
2756/3170
3956/4534
3909/4487
Operating Weight, kg (AL Fin/CU Fin)
2115/2459
2680/3138
2817/3231
4070/4647
4070/4647
EXTENDED (E) UNIT WEIGHTS
NOTES:
(1)
(2)
(3)
(4)
(5)
(6)
Low Ambient option utilizes two (2) variable speed fan motors in place of standard motors.
Extra Quiet Models utilize 855 RPM fan motors rated at .746 kWo and .61 kWi.
Min. Starting/Operating Ambient assumes a 5 MPH max. wind and a 50% min. chiller load.
Same as note (3) except the use of an Electronic Expansion Valve is required.
Not available for compact models in this size. (Consult Factory)
EXD16112J11DVRO used on compact unit; water volume = 162.8 Liters, min. flow = 11.0 Liters/Sec.,
max flow = 32.7 Liters/Sec.
9
1.0 GENERAL INFORMATION (CONT.)
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
1.3 Physical Specifications: S.I. Units
ACDX-B 118, 128, 138, 148, 158
ACDX-B MODEL
118
128
138
148
158
1113(2)
1113(1) 1117(1)
1117(2)
1111(3)
1111(2) 1113(1)
22
22
22
22
22
8%
8%
COMPRESSORS
Model (Qty.)
Oil Charge per Compressor (Liters)
Oil Type
Dunham-Bush Karlube #2
Oil Lubrication
Differential Pressure
% Capacity Reduction
10%
Crankcase Heater Watts/Compr.
400W
10%
10%
400W
400W
400W
400W
EXT18122J07
EXT18122J07
174.1
227.1
227.1
12.05
14.89
16.85
16.85
33.82
42.71
64.98
64.98
152.4 (VIC)
152.4 (VIC)
STANDARD COOLER
EXD16122J09
Water Volume, Liters
174.1
174.1
Minimum Flow Rate, Liters/Sec.
12.05
Maximum Flow Rate, Liters/Sec.
33.82
Water Conn. Size In/Out mm (Type)
152.4 (VIC)
COOLER FOR 5.6°C LWT
EXD16122J09
EXD16122J09 EXD16122J07
EXD16122J09 EXD16122J07
203.2 (NPT)
203.2 (NPT)
EXT18122J07
EXT18122J07
Water Volume, Liters
174.11
174.1
174.1
227.1
227.1
Minimum Flow Rate, Liters/Sec.
12.05
12.05
14.89
16.85
16.85
Maximum Flow Rate, Liters/Sec.
33.82
33.82
42.71
64.98
64.98
203.2 (VIC)
203.2 (VIC)
Water Conn. Size In/Out (Type)
152.4 (VIC)
COOLER FOR 4.4°C LWT
EXD16122J11
EXD18122J11 EXD18122J11
203.2 (NPT)
203.2 (NPT)
EXT20122J11
EXT20122J09
Water Volume, Liters
174.1
227.1
227.1
257.4
257.4
Minimum Flow Rate, Liters/Sec.
10.03
11.17
11.17
11.55
13.88
Maximum Flow Rate, Liters/Sec.
27.95
38.11
38.11
37.85
46.56
152.4 (VIC)
203.2 (VIC)
203.2 (VIC)
254 (VIC)
254 (VIC)
Water Conn. Size In/Out mm (Type)
CONDENSER
Compact Length Model - Fan Quantity(1)
8
8
10
12
12
(1)
10
10
12
14
14
Extended Length Model - Fan Quantity(1)
12
12
14
18
18
1140
1140
1140
1140
1140
1.60
1.60
1.60
1.60
1.60
Standard Length Model - Fan Quantity
(2)
Nominal RPM
60 Hz
Nominal Motor kWi (each)(2)
GENERAL
Minimum Starting/Operating Ambient °C(3)
-6.7
-6.7
-6.7
-6.7
-6.7
w/Low Ambient Option, °C (VAR SPD)(3)
-17.8
-17.8
-17.8
-17.8
-17.8
w/Extra Low Ambient Option, °C(4)
-28.9
-28.9
-28.9
-28.9
-28.9
2
2
2
3
3
137
144
155
175
187
Shipping Weight, kg (AL Fin/CU Fin)
3652/4110
3652/4110
3977/4554
4497/5693
4497/5693
Operating Weight, kg (AL Fin/CU Fin)
3827/4285
3827/4285
4152/4728
5230/5926
5230/5926
Shipping Weight, kg (AL Fin/CU Fin)
3977/4554
3977/4554
4228/4922
5303/6115
5303/6115
Operating Weight, kg (AL Fin/CU Fin)
4153/4728
4153/4728
4403/5097
5537/6348
5537/6348
Number of Circuits
Refrigerant Charge, lbs. R-22
COMPACT (C) UNIT WEIGHTS
STANDARD (S) UNIT WEIGHTS
EXTENDED (E) UNIT WEIGHTS
Shipping Weight, kg (AL Fin/CU Fin)
4228/4922
4228/4922
4568/5370
5847/6891
5847/6891
Operating Weight, kg (AL Fin/CU Fin)
4403/5097
4403/5097
4743/5545
6080/7124
6080/7124
NOTES:
10
(1)
(2)
(3)
(4)
Low Ambient option utilizes two (2) variable speed fan motors in place of standard motors.
Extra Quiet Models utilize 855 RPM fan motors rated at .746 kWo and .61 kWi.
Min. Starting/Operating Ambient assumes a 5 MPH max. wind and a 50% min. chiller load.
Same as note (3) except the use of an Electronic Expansion Valve is required.
1.0 GENERAL INFORMATION (CONT.)
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
1.3 Physical Specifications: S.I. Units
ACDX-B 178, 188, 198, 208
ACDX-B MODEL
178
188
198
208
1113(3)
1113(2) 1117(1)
1117(2) 1113(1)
1117(3)
22
22
22
22
COMPRESSORS
Model (Qty.)
Oil Charge per Compressor (Litersl)
Oil Type
Dunham-Bush Karlube #2
Oil Lubrication
Differential Pressure
% Capacity Reduction
8%
Crankcase Heater Watts/Compr.
8%
8%
8%
400W
400W
400W
400W
STANDARD COOLER
EXT18122J07
EXT18122J07
EXT20122J07
EXT20122J07
Water Volume, Liters
227.1
227.1
257.4
257.4
Minimum Flow Rate, Liters/Sec.
16.85
16.85
18.80
18.80
Maximum Flow Rate, Liters/Sec.
64.98
64.98
55.58
55.58
Water Conn. Size In/Out mm (Type)
203.2 (NPT)
203.2 (VIC)
254 (VIC)
254 (VIC)
EXT18122J07
EXT18122J07
EXT20122J07
EXT20122J07
Water Volume, Liters
227.1
227.1
257.4
257.4
Minimum Flow Rate, Liters/Sec.
16.85
16.85
18.80
18.80
Maximum Flow Rate, Liters/Sec.
64.98
64.98
55.58
55.58
COOLER FOR 5.6°C LWT
Water Conn. Size In/Out mm (Type)
203.2 (NPT)
203.2 (VIC)
254 (VIC)
254 (VIC)
EXT20122J09
EXT20122J09
EXT20122J07
EXT20122J07
Water Volume, Liters
257.4
257.4
257.4
257.4
Minimum Flow Rate, Liters/Sec.
13.88
13.88
18.80
18.80
Maximum Flow Rate, Liters/Sec.
46.56
46.56
55.58
55.58
254 (VIC)
254 (VIC)
254 (VIC)
254 (VIC)
Compact Length Model - Fan Quantity(1)
12
12
14
14
(1)
14
14
16
16
Extended Length Model - Fan Quantity(1)
18
18
18
18
1140
1140
1140
1140
1.60
1.60
1.60
1.60
COOLER FOR 4.4°C LWT
Water Conn. Size In/Out (mm Type)
CONDENSER
Standard Length Model - Fan Quantity
(2)
Nominal RPM
60 Hz
Nominal Motor kWi (each)(2)
GENERAL
Minimum Starting/Operating Ambient °C(3)
-6.7
-6.7
-6.7
-6.7
w/Low Ambient Option, °C (VAR SPD)(3)
-17.8
-17.8
-17.8
-17.8
w/Extra Low Ambient Option, °C(4)
-28.9
-28.9
-28.9
-28.9
3
3
3
3
210
222
234
246
Shipping Weight, kg (AL Fin/CU Fin)
4997/5693
4997/5693
5257/6069
5257/6069
Operating Weight, kg (AL Fin/CU Fin)
5230/5926
5230/5926
5536/6348
5536/6348
Shipping Weight, kg. (AL Fin/CU Fin)
5303/6115
5303/6115
5530/6458
5530/6458
Operating Weight, kg (AL Fin/CU Fin)
5537/6348
5537/6348
5809/6737
5809/6737
Number of Circuits
Refrigerant Charge, kg R-22
COMPACT (C) UNIT WEIGHTS
STANDARD (S) UNIT WEIGHTS
EXTENDED (E) UNIT WEIGHTS
Shipping Weight, kg (AL Fin/CU Fin)
5847/6891
5847/6891
5801/6846
5801/6846
Operating Weight, kg (AL Fin/CU Fin)
6080/7124
6080/7124
6080/7125
6080/7125
NOTES:
(1)
(2)
(3)
(4)
Low Ambient option utilizes two (2) variable speed fan motors in place of standard motors.
Extra Quiet Models utilize 855 RPM fan motors rated at .746 kWo and .61 kWi.
Min. Starting/Operating Ambient assumes a 5 MPH max. wind and a 50% min. chiller load.
Same as note (3) except the use of an Electronic Expansion Valve is required.
11
2.0 INSTALLATION
2.1
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
General ACDX-B/AUDX-B
Models ACDX-B packaged chillers are designed to cool
water or other non-corrosive liquids. Water is circulated
through the direct expansion cooler where it is cooled
to the desired temperature then circulated to cooling
coils for air conditioning, or to other types of heat
exchangers for process cooling.
AUDX-B Model condensing units are designed to serve
a wide variety of field-installed evaporators, with
interconnecting piping to be connected in the field.
When connected to a direct expansion cooler, the model
AUDX-B condensing unit operates the same as an ACDXB packaged chiller. When connected to one or more
DX coil banks, the unit is used to cool and dehumidify
ducted air.
Care should be taken to see that the equipment is
properly installed and adjusted. An installer or operator
should first become familiar with the information
contained in this manual. Installation of models AUDXB requiring field-installed refrigeration piping should
only be made by a qualified refrigeration technician.
2.2
Inspection ACDX-B/AUDX-B
When the equipment is delivered, it is important that
the following inspection be completed in the presence
of the carrier’s representative:
1. Check all crates and cartons received against the Bill
of Lading/Shipping Papers to be sure they agree.
2. Check the model number and the electrical
characteristics on the nameplate to determine if they
are correct.
3. Check for freight damage, shortages or other
discrepancies and note them on the delivery receipt
before signing.
In the event that any damage is found, a damage claim
should immediately be filed by the purchaser against
the delivering carrier as all shipments are made at the
purchaser’s risk.
2.3
2.3.1
Handling Storage & Rigging
General ACDX-B/AUDX-B Handling
Instructions
Each unit has been carefully tested at the factory where
every precaution is taken to assure that the unit reaches
you in perfectcondition. It is very important that the
riggers and movers should use the same care and
precaution in moving the equipment into place. Make
sure that chains, cables, or other moving equipment
are placed so as to avoid damage to the unit or piping.
The refrigerant piping must not be used as a ladder or
as a hand hold. Do not attach a chain hoist sling to the
piping or equipment. Move the unit in an upright
position and let it down gently from trucks or rollers.
2.3.2 Storage
This equipment is designed for outdoor use but must
be protected from physical damage if stored before
installation.
2.3.3
ACDX-B/AUDX-B Rigging and
Moving
This equipment is too large to be carried by a forklift
without serious damage so rigging is required.
Figure 2.3.3.1
SPREADER
BAR
CONTROL BOX
MUST USE 2 1/2" NOMINAL PIPE THRU UNIT
12
MUST
CLEAR TOP
OF FAN
GRILLES
2.0 INSTALLATION
2.4
2.4.1
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
Space and Clearance
Requirements
ACDX-B/AUDX-B
General Space and Clearance
Requirements
The dimensional data and space requirements are given
on pages 15 thru 24. Refer to 2.4.2 for location and
installation clearances and 2.4.3 for dimensional
requirements. The most important consideration which
must be taken into account when deciding upon the
location of air cooled equipment, is the provision for a
supply of ambient air to the condenser, and removal of
heated air from the condenser area. Where this essential
requirement is not provided, it will result in higher
condensing temperatures, which cause poor operation,
higher power consumption and possibly, eventual
failure of equipment. Units must not be located in the
vicinity of steam, hot air or fume exhausts.
2.4.2
Another consideration which must be taken is that the
unit should be mounted away from noise sensitive
spaces and must have adequate support to avoid
vibration and noise transmission into the building. Units
should be mounted over corridors, utility areas, rest
rooms or other auxiliary areas where sound levels are
not as important a factor. Sound and structural
consultants should be retained for recommendations
on critical installations.
Service Clearance Requirements
24.00
[610]
48.00
[1219]
ALLOW 60"
[1524] FOR
SERVICE
ACCESS
AIR FLOW
SIDE & BOTTOM
88.00
[2235]
48.00
[1219]
AIR FLOW
SIDE & BOTTOM
TOP VIEW
CLEARANCE, SERVICE AND ACCESS REQUIREMENTS.
(NOT WALL OR WELL DIMENSIONS).
NOTE:
1 - ALL DIMENSIONS ARE IN INCHES AND MILLIMETERS.
2 - ALLOW 60 [1524] CLEARANCE AT CONTROL PANEL
END OF UNIT FOR SERVICE.
3 - USE MINIMUM 36 [914] FLEXIBLE CONDUIT TO CONTROL
BOX TO ISOLATE UNIT.
4 - WATER PIPING TO BE SUPPORTED TO MINIMIZE LOAD ON
UNIT.
5 - ALL DIMENSIONS AND SPECIFICATIONS ARE SUBJECT TO
CHANGE WITHOUT NOTICE.
6 - CONSULT FACTORY FOR CHILLER TUBE REPLACEMENT
CLEARANCE.
13
2.0 INSTALLATION (CONT.)
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
2.4.3 ACDX-B/AUDX-B Condenser Air Supply Clearance
14
2.0 INSTALLATION (CONT.)
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
2.4.4 Dimensional Data: ACDX-B Shown
AUDX-B Same as Chiller Less Cooler
CHILLER
CHSO1160
CHSO1360
4-FAN UNIT
ACDX1B-048S
ACDX1B-058C
ACDX1B-068C
48.00
[1219]
CONN
4" NPT
4" NPT
A
10.29 [261]
9.07 [230]
B
14.80 [376]
15.93 [404]
C
57.00 [1448]
57.00 [1448]
D
53.50 [1359]
53.50 [1359]
ALLOW 60"
[1524] FOR
SERVICE
ACCESS
AIR FLOW
SIDE & BOTTOM
24.00
[610]
88.00
[2235]
48.00
[1219]
AIR FLOW - NO OBSTRUCTIONS
AIR FLOW
SIDE & BOTTOM
TOP VIEW
CLEARANCE, SERVICE AND ACCESS REQUIREMENTS
(NOT WALL OR WELL DIMENSIONS).
POWER ENTRY
SEE NOTE 4
5.13
71.50
[1816]
[130]
64.50
[1638]
WATER OUT
(SEE TABLE)
WATER IN
(SEE TABLE)
D
27.88
[708]
LIFTING & MOUNTING
HOLE LOCATION
LIFTING HOLE 2.88D
MOUNTING HOLES 0.688D
C
72.93
[1471]
28.19
[716]
AIR FLOW
POWER ENTRY
SEE NOTE 4
129.00 [328]
LEFT SIDE VIEW
NOTE:
1 - ALL DIMENSIONS ARE IN INCHES AND MILLIMETERS.
2 - VENT & DRAIN CONNECTIONS PROVIDED ON COOLER.
3 - ALLOW 60 [1524] CLEARANCE AT CONTROL PANEL
END OF UNIT FOR SERVICE.
4 - USE MINIMUM 36 [914] FLEXIBLE CONDUIT TO CONTROL
BOX TO ISOLATE UNIT.
5 - WATER PIPING TO BE SUPPORTED TO MINIMIZE LOAD ON
UNIT.
6 - ALL DIMENSIONS AND SPECIFICATIONS ARE SUBJECT TO
CHANGE WITHOUT NOTICE.
CONTROL
BOX
B
A
83.00 [2108]
86.61
[2200]
83.36
[2117]
MOUNTING
LOCATION
86.00 [2184]
CONTROL BOX END
15
2.0 INSTALLATION (CONT.)
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
2.4.4 Dimensional Data: ACDX-B Shown
AUDX-B Same as Chiller Less Cooler
CHILLER
CHSO1160
EXS12084
CHSO1360
EXD14102
EXD16112
6-FAN UNIT
ACDX1B-048E
ACDX1B-058S
ACDX1B-068S
ACDX1B-098C
ACDX1B-108C
CONN
4" NPT
4" VIC
4" NPT
5" VIC
6" VIC
A1 (1 COMP)
10.29 [261]
10.00 [254]
9.07 [230]
N/A
N/A
A2 (2 COMP)
N/A
N/A
N/A
28.87 [733]
30.00 [762]
B
14.80 [376]
15.55 [395]
15.93 [404]
16.17 [411]
17.17 [436]
C
80.51 [2045]
69.12 [1756]
80.51 [2045]
71.95 [1826]
62.00 [1575]
D1
53.50 [1359]
73.63 [1870]
53.50 [1359]
N/A
N/A
D2
N/A
N/A
N/A
90.63 [2302]
99.75 [2534]
CLEARANCE, SERVICE AND ACCESS REQUIREMENTS (NOT WALL OR WELL
DIMENSIONS) FOR CHILLERS CHSO1160, CHSO1360 & EXS12084.
24.00
[610]
48.00
[1219]
ALLOW 60"
[1524] FOR
SERVICE
ACCESS
AIR FLOW
SIDE & BOTTOM
SEE NOTE #7
88.00
[2235]
38.52
[978]
48.00
[1219]
SEE NOTE #8
AIR FLOW
SIDE & BOTTOM
TOP VIEW
098C & 108C COMPACT UNITS ONLY: CLEARANCE, SERVICE AND ACCESS
REQUIREMENTS (NOT WALL OR WELL DIMENSIONS) FOR CHILLERS EXD14102 & EXD16112.
AIR FLOW - NO OBSTRUCTIONS
POWER ENTRY
SEE NOTE 4
5.13
[130]
71.50
[1816]
64.50
[1638]
WATER IN
(SEE TABLE)
WATER OUT
(SEE TABLE)
LIFTING & MOUNTING
HOLE LOCATION
LIFTING HOLE 2.88D
MOUNTING HOLES 0.688D
D1
D2
30.63
[778]
C
54.00
[1372]
52.18
[1325]
28.19
[716]
165.00 [4191]
179.52 [4560] OVERALL LENGTH WITH
CHILLERS EXD14102, EXD16112 AND
LIQUID LINE PIPING (SEE NOTE #9)
LEFT SIDE VIEW
NOTE:
1 - ALL DIMENSIONS ARE IN INCHES AND MILLIMETERS.
2 - VENT & DRAIN CONNECTIONS PROVIDED ON COOLER.
3 - ALLOW 60 [1524] CLEARANCE AT CONTROL PANEL
END OF UNIT FOR SERVICE.
4 - USE MINIMUM 36 [914] FLEXIBLE CONDUIT TO CONTROL
BOX TO ISOLATE UNIT.
5 - WATER PIPING TO BE SUPPORTED TO MINIMIZE LOAD ON
UNIT.
6 - ALL DIMENSIONS AND SPECIFICATIONS ARE SUBJECT TO
CHANGE WITHOUT NOTICE.
7 - COMP #2 ON TWO COMP UNIT.
COMP #1 ON SINGLE COMP UNIT.
8 - COMP #1 ON TWO COMP UNIT.
9 - CHILLERS USED IN THE 098C AND 108C COMPACT
UNITS (EXD14102 & EXD16112) WILL EXTEND OUTSIDE
THE UNIT. THESE CHILLERS WILL EXTEND PAST THE
BACK RAIL 4.52" [115], WITH AN ADDITIONAL 10" [254]
OF COPPER PIPING NEEDED FOR THE LIQUID LINES.
WATER OUTLET WILL BE OUTSIDE REAR LEG. OPTIONAL
LOUVER GRILLE AND ALUMINUM GRILLE ARE NOT
AVAILABLE ON THESE UNITS.
16
AIR FLOW
POWER ENTRY
SEE NOTE 4
CONTROL
BOX
B
CHILLER POSITION
WITH 1 COMP
CHILLER POSITION
WITH 2 COMP
A1
A2
83.00 [2108]
86.00 [2184]
CONTROL BOX END
86.61
[2200]
83.36
[2117]
MOUNTING
LOCATION
2.0 INSTALLATION (CONT.)
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
2.4.4 Dimensional Data: ACDX-B Shown
AUDX-B Same as Chiller Less Cooler
CHILLER
CHSO1160
EXS12084
CHSO1360
EXD14102
EXD16112
EXD16122
EXD18122
EXD20122
8-FAN UNIT
ACDX1B-058E
ACDX1B-068E
ACDX1B-098S
ACDX1B-108S
ACDX1B-118C
ACDX1B-128C
24.00
[610]
48.00
[1219]
CONN
4" NPT
4" VIC
4" NPT
5" VIC
6" VIC
6" VIC
8" VIC
10" VIC
A1 (1 COMP)
10.29 [261]
10.00 [254]
9.07 [230]
N/A
N/A
N/A
N/A
N/A
AIR FLOW
SIDE & BOTTOM
A2 (2 COMP)
N/A
N/A
N/A
28.87 [733]
30.00 [762]
30.00 [762]
28.00 [711]
27.12 [689]
B
14.80 [376]
15.55 [395]
15.93 [404]
16.17 [411]
17.17 [436]
17.17 [436]
18.17 [462]
19.17 [487]
C
71.51 [1816]
76.94 [1954]
71.51 [1816]
68.45 [1739]
76.38 [1940]
71.39 [1813]
73.45 [1866]
74.82 [1900]
D
53.50 [1359]
73.63 [1870]
53.50 [1359]
90.63 [2302]
99.75 [2534]
109.75 [2788]
105.50 [2680]
102.88 [2613]
ALLOW 60"
[1524] FOR
SERVICE
ACCESS
SEE NOTE #7
88.00
[2235]
48.00
[1219]
SEE NOTE #8
AIR FLOW
SIDE & BOTTOM
TOP VIEW
CLEARANCE, SERVICE AND ACCESS REQUIREMENTS (NOT WALL
OR WELL DIMENSIONS).
AIR FLOW - NO OBSTRUCTIONS
POWER ENTRY
SEE NOTE 4
5.13
[130]
71.50
[1816]
64.50
[1638]
WATER OUT
(SEE TABLE)
WATER IN
(SEE TABLE)
D
C
43.88
71.00
57.93
[1115]
[1803]
[1471]
LIFTING & MOUNTING
HOLE LOCATION
LIFTING HOLE 2.88D
MOUNTING HOLES 0.688D
28.19
[716]
201.00 [5105]
LEFT SIDE VIEW
AIR FLOW
POWER ENTRY
SEE NOTE 4
NOTE:
1 - ALL DIMENSIONS ARE IN INCHES AND MILLIMETERS.
2 - VENT & DRAIN CONNECTIONS PROVIDED ON COOLER.
3 - ALLOW 60 [1524] CLEARANCE AT CONTROL PANEL
END OF UNIT FOR SERVICE.
4 - USE MINIMUM 36 [914] FLEXIBLE CONDUIT TO CONTROL
BOX TO ISOLATE UNIT.
B
5 - WATER PIPING TO BE SUPPORTED TO MINIMIZE LOAD ON
UNIT.
6 - ALL DIMENSIONS AND SPECIFICATIONS ARE SUBJECT TO
CHANGE WITHOUT NOTICE.
7 - COMP #2 ON TWO COMP UNIT.
CHILLER POSITION
COMP #1 ON SINGLE COMP UNIT.
WITH 1 COMP
8 - COMP #1 ON TWO COMP UNIT.
CHILLER POSITION
WITH 2 COMP
CONTROL
BOX
A1
86.61
[2200]
83.36
[2117]
MOUNTING
LOCATION
A2
83.00 [2108]
86.00 [2184]
CONTROL BOX END
17
2.0 INSTALLATION (CONT.)
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
2.4.4 Dimensional Data: ACDX-B Shown
AUDX-B Same as Chiller Less Cooler
10-FAN UNIT
ACDX1B-098E
ACDX1B-108E
ACDX1B-118S
ACDX1B-128S
ACDX1B-138C
24.00
48.00
[1219]
CHILLER
CONN
A
B
C
D
EXD14102
EXD16112
5" VIC
6" VIC
28.87 [733]
16.17 [411]
90.63 [2302]
30.00 [762]
17.17 [436]
94.81 [2408]
93.74 [2381]
EXD16122
6" VIC
30.00 [762]
17.17 [436]
88.75 [2254]
109.75 [2788]
EXD18122
8" VIC
28.00 [711]
18.17 [462]
90.81 [2307]
105.50 [2680]
EXD20122
10" VIC
27.12 [689]
19.17 [487]
92.18 [2341]
102.88 [2613]
99.75 [2534]
ALLOW 60"
[1524] FOR
SERVICE
ACCESS
AIR FLOW
SIDE & BOTTOM
[610]
88.00
[2235]
48.00
[1219]
AIR FLOW
SIDE & BOTTOM
TOP VIEW
CLEARANCE, SERVICE AND ACCESS REQUIREMENTS (NOT WALL OR WELL DIMENSIONS).
AIR FLOW - NO OBSTRUCTIONS
POWER ENTRY
SEE NOTE 4
5.13
[130]
71.50
[1816]
64.50
[1638]
WATER OUT
(SEE TABLE)
LIFTING & MOUNTING
HOLE LOCATION
LIFTING HOLE 2.88D
MOUNTING HOLES 0.688D TYP.
WATER IN
(SEE TABLE)
D
C
35.24
63.14
63.88
46.55
[895]
[1604]
[1623]
[1182]
28.19
[716]
237.00 [6020]
LEFT SIDE VIEW
AIR FLOW
POWER ENTRY
SEE NOTE 4
NOTE:
1 - ALL DIMENSIONS ARE IN INCHES AND MILLIMETERS.
2 - VENT & DRAIN CONNECTIONS PROVIDED ON COOLER.
3 - ALLOW 60 [1524] CLEARANCE AT CONTROL PANEL
END OF UNIT FOR SERVICE.
4 - USE MINIMUM 36 [914] FLEXIBLE CONDUIT TO CONTROL
BOX TO ISOLATE UNIT.
5 - WATER PIPING TO BE SUPPORTED TO MINIMIZE LOAD ON
UNIT.
6 - ALL DIMENSIONS AND SPECIFICATIONS ARE SUBJECT TO
CHANGE WITHOUT NOTICE.
CONTROL
BOX
B
A
83.00 [2108]
86.00 [2184]
CONTROL BOX END
18
86.61
[2200]
83.36
[2117]
MOUNTING
LOCATION
2.0 INSTALLATION (CONT.)
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
2.4.4 Dimensional Data: ACDX-B Shown
AUDX-B Same as Chiller Less Cooler
12-FAN UNIT
CHILLER
CONN
A
B
ACDX1B-118E
EXD16122
6" VIC
30.00 [762]
17.17 [436]
ACDX1B-128E
ACDX1B-138S
24.00
[610]
C
D
102.38 [2600]
109.75 [2788]
EXD18122
8" VIC
28.00 [711]
18.17 [462]
104.00 [2642]
105.50 [2680]
EXD20122
10" VIC
27.12 [689]
19.17 [487]
105.81 [2688]
102.88 [2613]
ALLOW 60"
AIR FLOW
SIDE & BOTTOM
48.00
[1219]
[1524] FOR
SERVICE
ACCESS
88.00
[2235]
CONTROL
BOX
48.00
[1219]
TOP VIEW
AIR FLOW
SIDE & BOTTOM
CLEARANCE, SERVICE AND ACCESS REQUIREMENTS (NOT WALL OR WELL DIMENSIONS).
AIR FLOW - NO OBSTRUCTIONS
POWER ENTRY
SEE NOTE 4
5.13
[130]
71.50
[1816]
64.50
[1638]
WATER OUT
(SEE TABLE)
LIFTING & MOUNTING
HOLE LOCATION
LIFTING HOLE 2.88D
MOUNTING HOLES 0.688D
WATER IN
(SEE TABLE)
C
35.24
[895]
44.31
[1296]
D
51.67
[1372]
58.00
[1473]
46.55
[1182]
28.19
[716]
273.00 [6934]
LEFT SIDE VIEW
NOTE:
1 - ALL DIMENSIONS ARE IN INCHES AND MILLIMETERS.
2 - VENT & DRAIN CONNECTIONS PROVIDED ON COOLER.
3 - ALLOW 60 [1524] CLEARANCE AT CONTROL PANEL
END OF UNIT FOR SERVICE.
4 - USE MINIMUM 36 [914] FLEXIBLE CONDUIT TO CONTROL
BOX TO ISOLATE UNIT.
5 - WATER PIPING TO BE SUPPORTED TO MINIMIZE LOAD ON
UNIT.
6 - ALL DIMENSIONS AND SPECIFICATIONS ARE SUBJECT TO
CHANGE WITHOUT NOTICE.
AIR FLOW
POWER ENTRY
SEE NOTE 4
CONTROL
BOX
B
A
83.00 [2108]
86.61
[2200]
83.36
[2117]
MOUNTING
LOCATION
86.00 [2184]
CONTROL BOX END
19
2.0 INSTALLATION (CONT.)
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
2.4.4 Dimensional Data: ACDX-B Shown
AUDX-B Same as Chiller Less Cooler
14-FAN UNIT
CHILLER
CONN
A
ACDX1B-138E
EXD16122
6" VIC
30.00 [762]
48.00
[1219]
24.00
[610]
B
17.17 [436]
C
D
101.89 [2588]
109.75 [2788]
EXD18122
8" VIC
28.00 [711]
18.17 [462]
104.00 [2642]
105.5 [2680]
EXD20122
10" VIC
27.12 [689]
19.17 [487]
105.32 [2675]
102.88 [2613]
ALLOW 60"
[1524] FOR
SERVICE
ACCESS
AIR FLOW
SIDE & BOTTOM
88.00
[2235]
48.00
[1219]
AIR FLOW
SIDE & BOTTOM
TOP VIEW
CLEARANCE, SERVICE AND ACCESS REQUIREMENTS (NOT WALL OR WELL DIMENSIONS).
AIR FLOW - NO OBSTRUCTIONS
POWER ENTRY
SEE NOTE 4
5.13
[130]
71.50
[1816]
64.50
[1638]
WATER OUT
(SEE TABLE)
D
35.24
[895]
76.52
[1944]
LIFTING & MOUNTING
HOLE LOCATION
LIFTING HOLE 2.88D
MOUNTING HOLES 0.688D
WATER IN
(SEE TABLE)
C
64.50
[1638]
58.00
[1473]
46.55
[1182]
28.19
[716]
309.00 [7849]
AIR FLOW
LEFT SIDE VIEW
NOTE:
1 - ALL DIMENSIONS ARE IN INCHES AND MILLIMETERS.
2 - VENT & DRAIN CONNECTIONS PROVIDED ON COOLER.
3 - ALLOW 60 [1524] CLEARANCE AT CONTROL PANEL
END OF UNIT FOR SERVICE.
4 - USE MINIMUM 36 [914] FLEXIBLE CONDUIT TO CONTROL
BOX TO ISOLATE UNIT.
5 - WATER PIPING TO BE SUPPORTED TO MINIMIZE LOAD ON
UNIT.
6 - ALL DIMENSIONS AND SPECIFICATIONS ARE SUBJECT TO
CHANGE WITHOUT NOTICE.
POWER ENTRY
SEE NOTE 4
CONTROL
BOX
B
A
83.00 [2108]
86.00 [2184]
CONTROL BOX END
20
86.61
[2200]
83.36
[2117]
MOUNTING
LOCATION
2.0 INSTALLATION (CONT.)
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
2.4.4 Dimensional Data: ACDX-B Shown
AUDX-B Same as Chiller Less Cooler
12-FAN UNIT
ACDX1B-148C
ACDX1B-158C
ACDX1B-178C
ACDX1B-188C
24.00
[610]
#12
CHILLER
EXT18122
CONN
8" VIC
A
29.12 [740]
B
18.17 [462]
C
106.44 [2704]
D
105.50 [2680]
EXT20122
10" VIC
26.45 [672]
19.17 [487]
107.81 [2738]
102.88 [2613]
48.00
[1219]
#10
ALLOW 60"
[1524] FOR
SERVICE
ACCESS
AIR FLOW
SIDE & BOTTOM
#8
#6
#4
#2
88.00
[2235]
#11
#9
#7
#5
48.00
[1219]
#3
#1
AIR FLOW
SIDE & BOTTOM
TOP VIEW
CLEARANCE, SERVICE AND ACCESS REQUIREMENTS (NOT WALL OR WELL DIMENSIONS).
AIR FLOW - NO OBSTRUCTIONS
POWER ENTRY
SEE NOTE 4
69.86
[1774]
5.13
[130]
62.86
[1597]
D
28.75
[730]
69.06
[1754]
LIFTING & MOUNTING
HOLE LOCATION
LIFTING HOLE 2.88D
MOUNTING HOLES 0.688D
WATER IN
(SEE TABLE)
WATER OUT
(SEE TABLE)
C
83.69
[2126]
99.31
[2522]
33.19
[843]
314.00
[7976]
LEFT SIDE VIEW
AIR FLOW
POWER ENTRY
SEE NOTE 4
CONTROL
BOX
NOTE:
1 - ALL DIMENSIONS ARE IN INCHES AND MILLIMETERS.
2 - VENT & DRAIN CONNECTIONS PROVIDED ON COOLER.
3 - ALLOW 60 [1524] CLEARANCE AT CONTROL PANEL
END OF UNIT FOR SERVICE.
4 - USE MINIMUM 36 [914] FLEXIBLE CONDUIT TO
CONTROL BOX TO ISOLATE UNIT.
5 - WATER PIPING TO BE SUPPORTED TO MINIMIZE LOAD
ON UNIT.
6 - ALL DIMENSIONS AND SPECIFICATIONS ARE SUBJECT
TO CHANGE WITHOUT NOTICE.
B
A
83.00 [2108]
86.61
[2200]
83.36
[2117]
MOUNTING
LOCATION
86.00 [2184]
CONTROL BOX END
21
2.0 INSTALLATION (CONT.)
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
2.4.4 Dimensional Data: ACDX-B Shown
AUDX-B Same as Chiller Less Cooler
14-FAN UNIT
ACDX1B-198C
ACDX1B-208C
ACDX1B-148S
ACDX1B-158S
ACDX1B-178S
ACDX1B-188S
24.00
[610]
#14
48.00
[1219]
#12
CHILLER
EXT18122
CONN
8" VIC
A
29.12 [740]
B
18.17 [462]
C
106.44 [2704]
D
105.50 [2680]
EXT20122
10" VIC
26.45 [672]
19.17 [487]
107.81 [2738]
102.88 [2613]
ALLOW 60"
[1524] FOR
SERVICE
ACCESS
AIR FLOW
SIDE & BOTTOM
#10
#8
#6
#4
#2
88.00
[2235]
#13
#11
#9
48.00
[1219]
#7
#5
AIR FLOW
SIDE & BOTTOM
#3
#1
TOP VIEW
CLEARANCE, SERVICE AND ACCESS REQUIREMENTS (NOT WALL OR WELL DIMENSIONS).
AIR FLOW - NO OBSTRUCTIONS
POWER ENTRY
SEE NOTE 4
69.86
[1774]
5.13
[130]
62.86
[1597]
WATER OUT
(SEE TABLE)
C
D
28.75
[730]
69.06
[1754]
LIFTING & MOUNTING
HOLE LOCATION
LIFTING HOLE 2.88D
MOUNTING HOLES 0.688D
WATER IN
(SEE TABLE)
52.25
[1327]
83.64
[2124]
83.11
[2111]
33.19
[843]
350.00
[8890]
LEFT SIDE VIEW
AIR FLOW
POWER ENTRY
SEE NOTE 4
CONTROL
BOX
NOTE:
1 - ALL DIMENSIONS ARE IN INCHES AND MILLIMETERS.
2 - VENT & DRAIN CONNECTIONS PROVIDED ON COOLER.
3 - ALLOW 60 [1524] CLEARANCE AT CONTROL PANEL
END OF UNIT FOR SERVICE.
4 - USE MINIMUM 36 [914] FLEXIBLE CONDUIT TO
CONTROL BOX TO ISOLATE UNIT.
5 - WATER PIPING TO BE SUPPORTED TO MINIMIZE LOAD
ON UNIT.
6 - ALL DIMENSIONS AND SPECIFICATIONS ARE SUBJECT
TO CHANGE WITHOUT NOTICE.
B
A
83.00 [2108]
86.00 [2184]
CONTROL BOX END
22
86.61
[2200]
83.36
[2117]
MOUNTING
LOCATION
2.0 INSTALLATION (CONT.)
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
2.4.4 Dimensional Data: ACDX-B Shown
AUDX-B Same as Chiller Less Cooler
16-FAN UNIT
ACDX1B-198S
ACDX1B-208S
CONN
8" VIC
A
29.12 [740]
B
18.17 [462]
C
106.44 [2704]
D
105.50 [2680]
10" VIC
26.45 [672]
19.17 [487]
107.81 [2738]
102.88 [2613]
48.00
[1219]
24.00
[610]
#16
CHILLER
EXT18122
EXT20122
#14
#12
ALLOW 60"
[1524] FOR
SERVICE
ACCESS
AIR FLOW
SIDE & BOTTOM
#10
#8
#6
#4
#2
88.00
[2235]
#15
#13
#11
#9
48.00
[1219]
#5
#7
#3
AIR FLOW
SIDE & BOTTOM
#1
TOP VIEW
CLEARANCE, SERVICE AND ACCESS REQUIREMENTS (NOT WALL OR WELL DIMENSIONS).
AIR FLOW - NO OBSTRUCTIONS
POWER ENTRY
SEE NOTE 4
5.13
[130]
69.86
[1774]
62.86
[1597]
WATER OUT
(SEE TABLE)
C
D
38.75
[984]
95.06
[2414]
LIFTING & MOUNTING
HOLE LOCATION
LIFTING HOLE 2.88D
MOUNTING HOLES 0.688D
WATER IN
(SEE TABLE)
52.25
[1327]
83.11
[2111]
83.64
[2124]
33.19
[843]
386.00
[9804]
LEFT SIDE VIEW
AIR FLOW
POWER ENTRY
SEE NOTE 4
CONTROL
BOX
NOTE:
1 - ALL DIMENSIONS ARE IN INCHES AND MILLIMETERS.
2 - VENT & DRAIN CONNECTIONS PROVIDED ON COOLER.
3 - ALLOW 60 [1524] CLEARANCE AT CONTROL PANEL
END OF UNIT FOR SERVICE.
4 - USE MINIMUM 36 [914] FLEXIBLE CONDUIT TO
CONTROL BOX TO ISOLATE UNIT.
5 - WATER PIPING TO BE SUPPORTED TO MINIMIZE LOAD
ON UNIT.
6 - ALL DIMENSIONS AND SPECIFICATIONS ARE SUBJECT
TO CHANGE WITHOUT NOTICE.
86.61
[2200]
83.36
[2117]
B
A
83.00 [2108]
MOUNTING
LOCATION
86.00 [2184]
CONTROL BOX END
23
2.0 INSTALLATION (CONT.)
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
2.4.4 Dimensional Data: ACDX-B Shown
AUDX-B Same as Chiller Less Cooler
18-FAN UNIT
ACDX1B-148E
ACDX1B-158E
ACDX1B-178E
ACDX1B-188E
ACDX1B-198E
ACDX1B-208E
48.00
[1219]
24.00
[610]
#18
#16
#14
CHILLER
EXT18122
CONN
8" VIC
A
29.12 [740]
B
18.17 [462]
C
106.44 [2704]
D
105.50 [2680]
EXT20122
10" VIC
26.45 [672]
19.17 [487]
107.81 [2738]
102.88 [2613]
ALLOW 60"
[1524] FOR
SERVICE
ACCESS
AIR FLOW
SIDE & BOTTOM
#12
#10
#8
#6
#4
#2
88.00
[2235]
#17
#15
#13
#11
48.00
[1219]
#9
#7
#5
#3
AIR FLOW
SIDE & BOTTOM
#1
TOP VIEW
CLEARANCE, SERVICE AND ACCESS REQUIREMENTS (NOT WALL OR WELL DIMENSIONS).
AIR FLOW - NO OBSTRUCTIONS
POWER ENTRY
SEE NOTE 4
69.86
[1774]
5.13
[130]
62.86
[1597]
D
38.75
[984]
95.06
[2415]
LIFTING & MOUNTING
HOLE LOCATION
LIFTING HOLE 2.88D
MOUNTING HOLES 0.688D
WATER IN
(SEE TABLE)
WATER OUT
(SEE TABLE)
88.25
[2242]
C
83.64
[2124]
33.19
[843]
83.11
[2111]
422.00
[10719]
LEFT SIDE VIEW
AIR FLOW
POWER ENTRY
SEE NOTE 4
CONTROL
BOX
NOTE:
1 - ALL DIMENSIONS ARE IN INCHES AND MILLIMETERS.
2 - VENT & DRAIN CONNECTIONS PROVIDED ON COOLER.
3 - ALLOW 60 [1524] CLEARANCE AT CONTROL PANEL
END OF UNIT FOR SERVICE.
4 - USE MINIMUM 36 [914] FLEXIBLE CONDUIT TO
CONTROL BOX TO ISOLATE UNIT.
5 - WATER PIPING TO BE SUPPORTED TO MINIMIZE LOAD
ON UNIT.
6 - ALL DIMENSIONS AND SPECIFICATIONS ARE SUBJECT
TO CHANGE WITHOUT NOTICE.
B
A
83.00 [2108]
86.00 [2184]
CONTROL BOX END
24
86.61
[2200]
83.36
[2117]
MOUNTING
LOCATION
2.0 INSTALLATION (CONT.)
2.5
2.5.1
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
Point Loading and Vibration
Isolation ACDX-B/AUDX-B
Foundation or Mounting Structure
Foundations must be level within 1/16" per foot, for
proper operation and functioning of controls. Provision
must be made for supporting the individual load points
as shown in the unit dimensions on 2.4.4 and unit
weight and point loading chart 2.5.3 to 2.5.6. Roof
mounted units must be supported on adequate steel
structures. If units are located on the ground level, a
concrete base is recommended.
2.5.2 Vibration Isolation ACDX-B/AUDX-B
Under certain critical conditions, it may be necessary
to install vibration isolators under the base of the
Packaged Chiller and the Air Cooled Condenser.
Rubber-in-shear or spring vibration isolators are offered
as optional items. See 2.6.1 to 2.6.9 on pages 30-37
(ACDX-B/AUDX-B) for mounting location. When spring
isolators are used, flexible connectors must be installed
in the water piping system and in the refrigerant lines
of split systems. Note: These flexible connectors must
be suitable for the fluid and pressures involves.
When using flexible connectors in refrigerant piping,
they must be mounted in the refrigerant discharge and
liquid lines close to the packaged chiller, in a horizontal
position and parallel to the compressor crankshaft.
All piping which is external to the packaged chiller must
be supported by spring mounted hangers and any
piping which goes through the wall, ceiling or floor
should be properly sheathed to prevent transmission
of piping vibration to the structure.
When spring isolators are used, electrical service to the
unit must also be flexibly connected, by means of a 36"
section of flexible conduit.
25
2.0 INSTALLATION (CONT.)
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
2.5.3 ACDX 048-208 Unit Weights and Point Loading
Aluminum Fin Condenser Unit - Weight Distribution
Dimensions (Inches)
ACDX-B
Pos.
Pos.
Pos.
Pos.
Pos.
Pos.
Pos.
Pos.
Pos.
Pos.
Unit
No.
Model Fans
#1
lbs.
#2
lbs.
#3
lbs.
#4
lbs.
#5
lbs.
#6
lbs.
#7
lbs.
#8
lbs.
#9
lbs.
#10
lbs.
Total
Lbs.
A
Dim.
B
Dim.
C
Dim.
D
Dim.
E
Dim.
F
Dim.
048S
4
926
1085 1029
875
-
-
-
-
-
-
3915
28.19
101.12
-
-
-
83.00
048E
6
750
967
657
817
711
-
-
-
-
4659
28.19
80.37
134.37
-
-
83.00
757
058C
4
932
1088 1096
899
-
-
-
-
-
-
4015
28.19
101.12
-
-
-
83.00
058S
6
772
1004
798
668
858
728
-
-
-
-
4828
28.19
80.37
134.37
-
-
83.00
83.00
058E
8
949
1181
946
816
1070
940
-
-
-
-
5902
28.19
86.12
157.12
-
-
068C
4
987
1107 1193
932
-
-
-
-
-
-
4219
28.19
101.12
-
-
-
83.00
068S
6
777
1009
878
701
938
760
-
-
-
-
5063
28.19
80.37
134.37
-
-
83.00
068E
8
949
1181 1120
843
1145
967
-
-
-
-
6205
28.19
86.12
157.12
-
-
83.00
098C
6
1353
1353
982
982
1017
1017
-
-
-
-
6704
28.19
80.37
134.37
-
-
83.00
098S
8
1446
1446 1066
1066
1313
1313
-
-
-
-
7650
28.19
86.12
157.12
-
-
83.00
098E
10
1350
1350
823
823
1235
1235
1074
1074
-
-
8964
28.19
74.74
138.62
201.76
-
83.00
108C
6
1365
1365 1125
1125
1172
1172
-
-
-
-
7324
28.19
80.37
134.37
-
-
83.00
83.00
108S
8
1446
1446 1195
1195
1494
1494
-
-
-
-
8270
28.19
86.12
157.12
-
-
108E
10
1350
1350
823
823
1235
1235
1074
1074
-
-
8964
28.19
74.74
138.62
201.76
-
83.00
118C
8
1453
1453 1319
1319
1443
1443
-
-
-
-
8430
28.19
86.12
157.12
-
-
83.00
118S
10
1358
1358
842
842
1272
1272
1100
1100
-
-
9144
28.19
74.74
138.62
201.76
-
83.00
118E
12
1308
1308
680
680
1058
1058
1092
1092
711
711
9698
28.19
74.74
132.74
186.74
237.76
83.00
128C
8
1453
1453 1319
1319
1443
1443
-
-
-
-
8430
28.19
86.12
157.12
-
-
83.00
128S
10
1358
1358
842
842
1272
1272
1100
1100
-
-
9144
28.19
74.74
138.62
201.76
-
83.00
128E
12
1308
1308
680
680
1058
1058
1092
1092
711
711
9698
28.19
74.74
132.74
186.74
237.76
83.00
138C
10
1358
1358
842
842
1272
1272
1100
1100
-
-
9144
28.19
74.74
138.62
201.76
-
83.00
138S
12
1308
1308
680
680
1058
1058
1092
1092
711
711
9698
28.19
74.74
132.74
186.74
237.76
83.00
138E
14
1332
1332
711
711
1174
1174
1247
1247
761
761
10450
28.19
74.74
132.74
197.24
273.76
83.00
148C
12
1728
1728 1869
1869
1355
1819
581
581
-
-
11530
33.19
132.50
216.19
285.25
-
83.00
148S
14
1475
1475 1618
1618
1510
1510
667
1131
600
600
12204
33.19
116.30
199.94
252.19
321.25
83.00
83.00
148E
18
1487
1487 1630
1630
1672
1672
827
1291
854
854
13404
33.19
116.30
199.94
288.19
383.25
158C
12
1728
1728 1869
1869
1355
1819
581
581
-
-
11530
33.19
132.50
216.19
285.25
-
83.00
158S
14
1475
1475 1618
1618
1510
1510
667
1131
600
600
12204
33.19
116.30
199.94
252.19
321.25
83.00
83.00
158E
18
1487
1487 1630
1630
1672
1672
827
1291
854
854
13404
33.19
116.30
199.94
288.19
383.25
178C
12
1728
1728 1869
1869
1355
1819
581
581
-
-
11530
33.19
132.50
216.19
285.25
-
83.00
178S
14
1475
1475 1618
1618
1510
1510
667
1131
600
600
12204
33.19
116.30
199.94
252.19
321.25
83.00
83.00
178E
18
1487
1487 1630
1630
1672
1672
827
1291
854
854
13404
33.19
116.30
199.94
288.19
383.25
188C
12
1728
1728 1869
1869
1355
1819
581
581
-
-
11530
33.19
132.50
216.19
285.25
-
83.00
188S
14
1475
1475 1618
1618
1510
1510
667
1131
600
600
12204
33.19
116.30
199.94
252.19
321.25
83.00
188E
18
1487
1487 1630
1630
1672
1672
827
1291
854
854
13404
33.19
116.30
199.94
288.19
383.25
83.00
198C
14
1475
1475 1618
1618
1510
1510
667
1131
600
600
12204
33.19
116.30
199.94
252.19
321.25
83.00
198S
16
1470
1470 1553
1553
1596
1596
767
1231
785
785
12806
33.19
116.30
199.94
252.19
347.25
83.00
198E
18
1487
1487 1630
1630
1672
1672
827
1291
854
854
13404
33.19
116.30
199.94
288.19
383.25
83.00
208C
14
1475
1475 1618
1618
1510
1510
667
1131
600
600
12204
33.19
116.30
199.94
252.19
321.25
83.00
208S
16
1470
1470 1553
1553
1596
1596
767
1231
785
785
12806
33.19
116.30
199.94
252.19
347.25
83.00
208E
18
1487
1487 1630
1630
1672
1672
827
1291
854
854
13404
33.19
116.30
199.94
288.19
383.25
83.00
TOP VIEW
CNT
BOX
END
Pos
•
Pos
•
Pos
•
Pos
•
Pos
#1
#3
#5
#7
#9
F
Pos
Pos
Pos
Pos
Pos
#2
#4
#6
#8
#10
•
A
26
•
•
B
•
C
•
D
•
E
FIELD:
INSTALL ISOLATORS AT THE
CORRESPONDING LOAD POINTS.
2.0 INSTALLATION (CONT.)
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
2.5.4 ACDX 048-208 Unit Weights and Point Loading
Copper Fin Condenser Unit - Weight Distribution
ACDX-B
Unit
No.
Model Fans
Pos.
#1
lbs.
Pos.
#2
lbs.
Pos.
#3
lbs.
Pos.
#4
lbs.
Pos.
#5
lbs.
Dimensions (Inches)
Pos.
#6
lbs.
Pos.
#7
lbs.
Pos.
#8
lbs.
Pos.
#9
lbs.
Pos.
#10
lbs.
Total
Lbs.
A
Dim.
B
Dim.
C
Dim.
D
Dim.
E
Dim.
F
Dim.
048S
4
970
1129 1236
1082
-
-
-
-
-
-
4417
28.19
101.12
-
-
-
83.00
048E
6
785
1002
929
823
992
886
-
-
-
-
5417
28.19
80.37
134.37
-
-
83.00
058C
4
976
1132 1303
1106
-
-
-
-
-
-
4517
28.19
101.12
-
-
-
83.00
058S
6
807
1036
968
839
1033
903
-
-
-
-
5586
28.19
80.37
134.37
-
-
83.00
83.00
058E
8
992
1224 1160
1030
1318
1188
-
-
-
-
6912
28.19
86.12
157.12
-
-
068C
4
1031
1151 1400
1139
-
-
-
-
-
-
4721
28.19
101.12
-
-
-
83.00
068S
6
812
1044 1049
871
1113
1060
-
-
-
-
5949
28.19
80.37
134.37
-
-
83.00
068E
8
992
1224 1235
1057
1393
1215
-
-
-
-
7116
28.19
86.12
157.12
-
-
83.00
098C
6
1387
1387 1154
1154
1192
1192
-
-
-
-
7466
28.19
80.37
134.37
-
-
83.00
098S
8
1490
1490 1280
1280
1560
1560
-
-
-
8660
28.19
86.12
157.12
-
-
83.00
098E
10
1377
1377 1002
1002
1457
1457
1282
1282
-
-
10236
28.19
74.74
138.62
201.76
-
83.00
108C
6
1399
1399 1297
1297
1347
1347
-
-
-
-
8086
28.19
80.37
134.37
-
-
83.00
108S
8
1490
1490 1280
1280
1560
1560
-
-
-
-
8660
28.19
86.12
157.12
-
-
83.00
108E
10
1377
1377 1002
1002
1457
1457
1282
1282
-
-
10236
28.19
74.74
138.62
201.76
-
83.00
118C
8
1496
1496 1533
1533
1690
1690
-
-
-
-
9438
28.19
86.12
157.12
-
-
83.00
118S
10
1385
1385 1021
1021
1494
1494
1308
1308
-
-
10416
28.19
74.74
138.62
201.76
-
83.00
118E
12
1335
1335
850
850
1254
1254
1276
1276
898
898
11226
28.19
74.74
132.74
186.74
237.76
83.00
128C
8
1496
1496 1533
1533
1690
1690
-
-
-
-
9438
28.19
86.12
157.12
-
-
83.00
128S
10
1385
1385 1021
1021
1494
1494
1308
1308
-
-
10416
28.19
74.74
138.62
201.76
-
83.00
128E
12
1335
1335
850
850
1254
1254
1276
1276
898
898
11226
28.19
74.74
132.74
186.74
237.76
83.00
138C
10
1385
1385 1021
1021
1494
1494
1308
1308
-
-
10416
28.19
74.74
138.62
201.76
-
83.00
138S
12
1335
1335
850
850
1254
1254
1276
1276
898
898
11226
28.19
74.74
132.74
186.74
237.76
83.00
138E
14
1359
1359
880
880
1389
1389
1494
1494
985
985
12214
28.19
74.74
132.74
197.24
273.76
83.00
148C
12
1849
1849 2177
2177
1510
1974
764
764
-
-
13064
33.19
132.50
216.19
285.25
-
83.00
148S
14
1561
1561 1901
1901
1743
1743
774
1238
786
786
13994
33.19
116.30
199.94
252.19
321.25
83.00
148E
18
1573
1573 1914
1914
1976
1976
1004
1468
1154
1154
15706
33.19
116.30
199.94
288.19
383.25
83.00
158C
12
1849
1849 2177
2177
1510
1974
764
764
-
-
13064
33.19
132.50
216.19
285.25
-
83.00
83.00
158S
14
1561
1561 1901
1901
1743
1743
774
1238
786
786
13994
33.19
116.30
199.94
252.19
321.25
158E
18
1573
1573 1914
1914
1976
1976
1004
1468
1154
1154
15706
33.19
116.30
199.94
288.19
383.25
83.00
178C
12
1849
1849 2177
2177
1510
1974
764
764
-
-
13064
33.19
132.50
216.19
285.25
-
83.00
83.00
178S
14
1561
1561 1901
1901
1743
1743
774
1238
786
786
13994
33.19
116.30
199.94
252.19
321.25
178E
18
1573
1573 1914
1914
1976
1976
1004
1468
1154
1154
15706
33.19
116.30
199.94
288.19
383.25
83.00
188C
12
1849
1849 2177
2177
1510
1974
764
764
-
-
13064
33.19
132.50
216.19
285.25
-
83.00
83.00
188S
14
1561
1561 1901
1901
1743
1743
774
1238
786
786
13994
33.19
116.30
199.94
252.19
321.25
188E
18
1573
1573 1914
1914
1976
1976
1004
1468
1154
1154
15706
33.19
116.30
199.94
288.19
383.25
83.00
198C
14
1561
1561 1901
1901
1743
1743
774
1238
786
786
13994
33.19
116.30
199.94
252.19
321.25
83.00
83.00
198S
16
1552
1552 1841
1841
1829
1829
917
1381
1055
1055
14852
33.19
116.30
199.94
252.19
347.25
198E
18
1573
1573 1914
1914
1976
1976
1004
1468
1154
1154
15706
33.19
116.30
199.94
288.19
383.25
83.00
208C
14
1561
1561 1901
1901
1743
1743
774
1238
786
786
13994
33.19
116.30
199.94
252.19
321.25
83.00
208S
16
1552
1552 1841
1841
1829
1829
917
1381
1055
1055
14852
33.19
116.30
199.94
252.19
347.25
83.00
208E
18
1573
1573 1914
1914
1976
1976
1004
1468
1154
1154
15706
33.19
116.30
199.94
288.19
383.25
83.00
TOP VIEW
CNT
BOX
END
Pos
•
Pos
•
Pos
•
Pos
•
Pos
#1
#3
#5
#7
#9
F
Pos
Pos
Pos
Pos
Pos
#2
#4
#6
#8
#10
•
A
•
•
B
•
C
•
D
FIELD:
INSTALL ISOLATORS AT THE
CORRESPONDING LOAD POINTS.
•
E
27
2.0 INSTALLATION (CONT.)
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
2.5.5 AUDX 048-208 Unit Weights and Point Loading
Aluminum Fin Condenser Unit - Weight Distribution
Dimensions (Inches)
AUDX-B
Pos.
Pos.
Pos.
Pos.
Pos.
Pos.
Pos.
Pos.
Pos.
Pos.
Unit
No.
Model Fans
#1
lbs.
#2
lbs.
#3
lbs.
#4
lbs.
#5
lbs.
#6
lbs.
#7
lbs.
#8
lbs.
#9
lbs.
#10
lbs.
Total
Lbs.
A
Dim.
B
Dim.
C
Dim.
D
Dim.
E
Dim.
F
Dim.
048S
4
839
1054
791
791
-
-
-
-
-
-
3475
28.19
101.12
-
-
-
83.00
048E
6
750
967
594
600
654
654
-
-
-
-
4219
28.19
80.37
134.37
-
-
83.00
058C
4
839
1063
784
792
-
-
-
-
-
-
3478
28.19
101.12
-
-
-
83.00
058S
6
772
1004
598
598
658
658
-
-
-
-
4288
28.19
80.37
134.37
-
-
83.00
83.00
058E
8
949
1181
746
746
870
870
-
-
-
-
5362
28.19
86.12
157.12
-
-
068C
4
839
1055
791
791
-
-
-
-
-
-
3476
28.19
101.12
-
-
-
83.00
068S
6
777
1009
603
604
663
663
-
-
-
-
4319
28.19
80.37
134.37
-
-
83.00
068E
8
949
1181
845
746
870
870
-
-
-
-
5461
28.19
86.12
157.12
-
-
83.00
098C
6
1353
1353
619
619
654
654
-
-
-
-
5252
28.19
80.37
134.37
-
-
83.00
098S
8
1446
1446
703
703
950
950
-
-
-
-
6198
28.19
86.12
157.12
-
-
83.00
098E
10
1350
1350
629
629
722
722
745
745
-
-
6892
28.19
74.74
138.62
201.76
-
83.00
108C
6
1365
1365
607
607
654
654
-
-
-
-
5252
28.19
80.37
134.37
-
-
83.00
108S
8
1446
1446
677
677
976
976
-
-
-
-
6198
28.19
86.12
157.12
-
-
83.00
108E
10
1350
1350
629
629
722
722
745
745
-
-
6892
28.19
74.74
138.62
201.76
-
83.00
118C
8
1453
1453
771
771
895
895
-
-
-
-
6238
28.19
86.12
157.12
-
-
83.00
118S
10
1358
1358
637
637
730
730
752
752
-
-
6954
28.19
74.74
138.62
201.76
-
83.00
118E
12
1308
1308
567
567
624
624
598
598
657
657
7508
28.19
74.74
132.74
186.74
237.76
83.00
128C
8
1453
1453
771
771
895
895
-
-
-
-
6238
28.19
86.12
157.12
-
-
83.00
128S
10
1358
1358
637
637
730
730
752
752
-
-
6954
28.19
74.74
138.62
201.76
-
83.00
128E
12
1308
1308
567
567
624
624
598
598
657
657
7508
28.19
74.74
132.74
186.74
237.76
83.00
138C
10
1358
1358
637
637
730
730
752
752
-
-
6954
28.19
74.74
138.62
201.76
-
83.00
138S
12
1308
1308
567
567
624
624
598
598
657
657
7508
28.19
74.74
132.74
186.74
237.76
83.00
138E
14
1332
1332
588
588
690
690
758
758
761
761
8258
28.19
74.74
132.74
197.24
273.76
83.00
148C
12
1631
1631
812
812
785
1249
581
581
-
-
8082
33.19
132.50
216.19
285.25
-
83.00
148S
14
1475
1475
756
756
648
648
667
1131
600
600
8756
33.19
116.30
199.94
252.19
321.25
83.00
83.00
148E
18
1487
1487
768
760
810
810
827
1291
854
854
9948
33.19
116.30
199.94
288.19
383.25
158C
12
1631
1631
812
812
785
1249
581
581
-
-
8082
33.19
132.50
216.19
285.25
-
83.00
158S
14
1475
1475
756
756
648
648
667
1131
600
600
8756
33.19
116.30
199.94
252.19
321.25
83.00
83.00
158E
18
1487
1487
768
760
810
810
827
1291
854
854
9948
33.19
116.30
199.94
288.19
383.25
178C
12
1631
1631
812
812
785
1249
581
581
-
-
8082
33.19
132.50
216.19
285.25
-
83.00
178S
14
1475
1475
756
756
648
648
667
1131
600
600
8756
33.19
116.30
199.94
252.19
321.25
83.00
83.00
178E
18
1487
1487
768
760
810
810
827
1291
854
854
9948
33.19
116.30
199.94
288.19
383.25
188C
12
1631
1631
812
812
785
1249
581
581
-
-
8082
33.19
132.50
216.19
285.25
-
83.00
188S
14
1475
1475
756
756
648
648
667
1131
600
600
8756
33.19
116.30
199.94
252.19
321.25
83.00
188E
18
1487
1487
768
760
810
810
827
1291
854
600
9694
33.19
116.30
199.94
288.19
383.25
83.00
198C
14
1475
1475
756
756
648
648
667
1131
600
854
9010
33.19
116.30
199.94
252.19
321.25
83.00
198S
16
1470
1470
864
864
654
654
767
1231
785
785
9544
33.19
116.30
199.94
252.19
347.25
83.00
198E
18
1487
1487
768
760
810
810
827
1291
854
854
9948
33.19
116.30
199.94
288.19
383.25
83.00
208C
14
1475
1475
756
756
648
648
667
1131
600
600
8756
33.19
116.30
199.94
252.19
321.25
83.00
208S
16
1470
1470
864
864
654
654
767
1231
785
785
9544
33.19
116.30
199.94
252.19
347.25
83.00
208E
18
1487
1487
768
760
810
810
827
1291
854
854
9948
33.19
116.30
199.94
288.19
383.25
83.00
TOP VIEW
CNT
BOX
END
Pos
•
Pos
•
Pos
•
Pos
•
Pos
#1
#3
#5
#7
#9
Pos
Pos
Pos
Pos
Pos
#8
#10
F
#2
#4
•
A
28
•
#6
•
B
•
C
•
D
•
E
FIELD:
INSTALL ISOLATORS AT THE
CORRESPONDING LOAD POINTS.
2.0 INSTALLATION (CONT.)
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
2.5.6 AUDX 048-208 Unit Weights and Point Loading
Copper Fin Condenser Unit - Weight Distribution
AUDX-B
Unit
No.
Model Fans
Pos.
#1
lbs.
Pos.
#2
lbs.
Pos.
#3
lbs.
Pos.
#4
lbs.
Pos.
#5
lbs.
Pos.
#6
lbs.
Pos.
#7
lbs.
Pos.
#8
lbs.
Pos.
#9
lbs.
Pos.
#10
lbs.
Dimensions (Inches)
Total
Lbs.
A
Dim.
B
Dim.
C
Dim.
D
Dim.
E
Dim.
F
Dim.
048S
4
883
1098
998
998
-
-
-
-
-
-
3977
28.19
101.12
-
-
-
83.00
048E
6
785
1002
766
766
829
829
-
-
-
-
4977
28.19
80.37
134.37
-
-
83.00
058C
4
886
1099
999
999
-
-
-
-
-
-
3983
28.19
101.12
-
-
-
83.00
058S
6
807
5
768
769
833
833
-
-
-
-
4015
28.19
80.37
134.37
-
-
83.00
83.00
058E
8
992
1224
960
960
1118
1118
-
-
-
-
6372
28.19
86.12
157.12
-
-
068C
4
883
1099
998
998
-
-
-
-
-
-
3978
28.19
101.12
-
-
-
83.00
068S
6
812
1044
774
774
901
901
-
-
-
-
5206
28.19
80.37
134.37
-
-
83.00
068E
8
992
1224
960
960
1118
1118
-
-
-
-
6372
28.19
86.12
157.12
-
-
83.00
098C
6
1387
1387
791
791
829
829
-
-
-
-
6014
28.19
80.37
134.37
-
-
83.00
83.00
098S
8
1490
1490
917
917
1197
1197
-
-
-
-
7208
28.19
86.12
157.12
-
-
098E
10
1377
1377
808
808
944
944
953
953
-
-
8164
28.19
74.74
138.62
201.76
-
83.00
108C
6
1496
1496 1015
1015
1172
1172
-
-
-
-
7366
28.19
80.37
134.37
-
-
83.00
83.00
108S
8
1490
1490
762
762
1042
1042
-
-
-
-
6588
28.19
86.12
157.12
-
-
108E
10
1377
1377
808
808
944
944
953
953
-
-
8164
28.19
74.74
138.62
201.76
-
83.00
118C
8
1496
1496
985
985
1142
1142
-
-
-
-
7246
28.19
86.12
157.12
-
-
83.00
118S
10
1385
1385
816
816
952
952
960
960
-
-
8226
28.19
74.74
138.62
201.76
-
83.00
118E
12
1335
1335
737
737
820
820
782
782
844
844
9036
28.19
74.74
132.74
186.74
237.76
83.00
128C
8
1496
1496
985
985
1142
1142
-
-
-
-
7246
28.19
86.12
157.12
-
-
83.00
128S
10
1385
1385
816
816
952
952
960
960
-
-
8226
28.19
74.74
138.62
201.76
-
83.00
128E
12
1335
1335
737
737
820
820
782
782
844
844
9036
28.19
74.74
132.74
186.74
237.76
83.00
138C
10
1385
1385
816
816
952
952
960
960
-
-
8226
28.19
74.74
138.62
201.76
-
83.00
138S
12
1335
1335
737
737
820
820
782
782
844
844
9036
28.19
74.74
132.74
186.74
237.76
83.00
138E
14
1359
1359
757
757
905
905
1005
1005
985
985
10022
28.19
74.74
132.74
197.24
273.76
83.00
148C
12
1752
1752 1120
1120
940
1404
764
764
-
-
9616
33.19
132.50
216.19
285.25
-
83.00
148S
14
1561
1561 1039
1039
881
881
774
1238
786
786
10546
33.19
116.30
199.94
252.19
321.25
83.00
148E
18
1573
1573 1052
1052
1114
1114
1004
1468
1154
1154
12258
33.19
116.30
199.94
288.19
383.25
83.00
158C
12
1752
1752 1120
1120
940
1404
764
764
-
-
9616
33.19
132.50
216.19
285.25
-
83.00
83.00
158S
14
1561
1561 1039
1039
881
881
774
1238
786
786
10546
33.19
116.30
199.94
252.19
321.25
158E
18
1573
1573 1052
1052
1114
1114
1004
1468
1154
1154
12258
33.19
116.30
199.94
288.19
383.25
83.00
178C
12
1752
1752 1120
1120
940
1404
764
764
-
-
9616
33.19
132.50
216.19
285.25
-
83.00
83.00
178S
14
1561
1561 1039
1039
881
881
774
1238
786
786
10546
33.19
116.30
199.94
252.19
321.25
178E
18
1573
1573 1052
1052
1114
1114
1004
1468
1154
1154
12258
33.19
116.30
199.94
288.19
383.25
83.00
188C
12
1752
1752 1120
1120
940
1404
764
764
-
-
9616
33.19
132.50
216.19
285.25
-
83.00
83.00
188S
14
1561
1561 1039
1039
881
881
774
1238
786
786
10546
33.19
116.30
199.94
252.19
321.25
188E
18
1573
1573 1052
1052
1114
1114
1004
1468
1154
1154
12258
33.19
116.30
199.94
288.19
383.25
83.00
198C
14
1561
1561 1039
1039
881
881
774
1238
786
786
10546
33.19
116.30
199.94
252.19
321.25
83.00
83.00
198S
16
1552
1552 1060
1060
887
887
917
1381
1055
1055
11406
33.19
116.30
199.94
252.19
347.25
198E
18
1573
1573 1052
1052
1114
1114
1004
1468
1154
1154
12258
33.19
116.30
199.94
288.19
383.25
83.00
208C
14
1561
1561 1039
1039
881
881
774
1238
786
786
10546
33.19
116.30
199.94
252.19
321.25
83.00
208S
16
1552
1552 1060
1060
887
887
917
1381
1055
1055
11406
33.19
116.30
199.94
252.19
347.25
83.00
208E
18
1573
1573 1052
1052
1114
1114
1004
1468
1154
1154
12258
33.19
116.30
199.94
288.19
383.25
83.00
TOP VIEW
CNT
BOX
END
Pos
•
Pos
•
Pos
•
Pos
•
Pos
#1
#3
#5
#7
#9
FIELD:
F
Pos
Pos
Pos
Pos
Pos
#2
#4
#6
#8
#10
•
A
•
•
B
•
C
•
D
INSTALL ISOLATORS AT THE
CORRESPONDING LOAD POINTS.
•
E
29
2.0 INSTALLATION (CONT.)
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
2.6 Vibration Isolator Requirements
2.6.1 ACDX 048-208 Rubber-in-Shear Vibration Isolators
with Aluminum Fin Condenser
ACDX-B
Pos.
Pos.
Pos.
Pos.
Pos.
Pos.
Pos.
Pos.
Pos.
Pos.
Unit
No.
Model Fans
#1
RVD
#2
RVD
#3
RVD
#4
RVD
#5
RVD
#6
RVD
#7
RVD
#8
RVD
#9
RVD
#10
RVD
Dimensions (Inches)
A
Dim.
B
Dim.
C
Dim.
D
Dim.
E
Dim.
F
Dim.
048S
4
3B
3C
3C
3B
-
-
-
-
-
-
28.19
101.12
-
-
-
83.00
048E
6
3B
3B
3B
3B
3B
3B
-
-
-
-
28.19
80.37
134.37
-
-
83.00
058C
4
3B
3C
3C
3B
-
-
-
-
-
-
28.19
101.12
-
-
-
83.00
058S
6
3B
3C
3B
3B
3B
3B
-
-
-
-
28.19
80.37
134.37
-
-
83.00
83.00
058E
8
3B
3C
3B
3B
3C
3B
-
-
-
-
28.19
86.12
157.12
-
-
068C
4
3B
3C
3C
3B
-
-
-
-
-
-
28.19
101.12
-
-
-
83.00
068S
6
3B
3C
3B
3B
3B
3B
-
-
-
-
28.19
80.37
134.37
-
-
83.00
83.00
068E
8
3B
3C
3C
3B
3C
3B
-
-
-
-
28.19
86.12
157.12
-
-
098C
6
3C
3C
3B
3B
3C
3C
-
-
-
-
28.19
80.37
134.37
-
-
83.00
098S
8
3C
3C
3C
3C
3C
3C
-
-
-
-
28.19
86.12
157.12
-
-
83.00
098E
10
3C
3C
3B
3B
3C
3C
3C
3C
-
-
28.19
74.74
138.62
201.76
-
83.00
108C
6
3C
3C
3C
3C
3C
3C
-
-
-
-
28.19
80.37
134.37
-
-
83.00
83.00
108S
8
3C
3C
3C
3C
3C
3C
-
-
-
-
28.19
86.12
157.12
-
-
108E
10
3C
3C
3B
3B
3C
3C
3C
3C
-
-
28.19
74.74
138.62
201.76
-
83.00
118C
8
3C
3C
3C
3C
3C
3C
-
-
-
-
28.19
86.12
157.12
-
-
83.00
83.00
118S
10
3C
3C
3B
3B
3C
3C
3C
3C
-
-
28.19
74.74
138.62
201.76
-
118E
12
3C
3C
3B
3B
3C
3C
3C
3C
3B
3B
28.19
74.74
132.74
186.74
237.76
83.00
128C
8
3C
3C
3C
3C
3C
3C
-
-
-
-
28.19
86.12
157.12
-
-
83.00
128S
10
3C
3C
3B
3B
3C
3C
3C
3C
-
-
28.19
74.74
138.62
201.76
-
83.00
128E
12
3C
3C
3B
3B
3C
3C
3C
3C
3B
3B
28.19
74.74
132.74
186.74
237.76
83.00
138C
10
3C
3C
3B
3B
3C
3C
3C
3C
-
-
28.19
74.74
138.62
201.76
-
83.00
138S
12
3C
3C
3B
3B
3C
3C
3C
3C
3B
3B
28.19
74.74
132.74
186.74
237.76
83.00
138E
14
3C
3C
3B
3B
3C
3C
3C
3C
3B
3B
28.19
74.74
132.74
197.24
273.76
83.00
148C
12
3D
3D
3D
3D
3C
3D
3B
3B
-
-
33.19
132.50
216.19
285.25
-
83.00
148S
14
3C
3C
3D
3D
3D
3D
3B
3C
3B
3B
33.19
116.30
199.94
252.19
321.25
83.00
148E
18
3C
3C
3D
3D
3D
3D
3B
3C
3B
3B
33.19
116.30
199.94
288.19
383.25
83.00
158C
12
3D
3D
3D
3D
3C
3D
3B
3B
-
-
33.19
132.50
216.19
285.25
-
83.00
158S
14
3C
3C
3D
3D
3D
3D
3B
3C
3B
3B
33.19
116.30
199.94
252.19
321.25
83.00
83.00
158E
18
3C
3C
3D
3D
3D
3D
3B
3C
3B
3B
33.19
116.30
199.94
288.19
383.25
178C
12
3D
3D
3D
3D
3C
3D
3B
3B
-
-
33.19
132.50
216.19
285.25
-
83.00
178S
14
3C
3C
3D
3D
3D
3D
3B
3C
3B
3B
33.19
116.30
199.94
252.19
321.25
83.00
83.00
178E
18
3C
3C
3D
3D
3D
3D
3B
3C
3B
3B
33.19
116.30
199.94
288.19
383.25
188C
12
3D
3D
3D
3D
3C
3D
3B
3B
-
-
33.19
132.50
216.19
285.25
-
83.00
188S
14
3C
3C
3D
3D
3D
3D
3B
3C
3B
3B
33.19
116.30
199.94
252.19
321.25
83.00
83.00
188E
18
3C
3C
3D
3D
3D
3D
3B
3C
3B
3B
33.19
116.30
199.94
288.19
383.25
198C
14
3C
3C
3D
3D
3D
3D
3B
3C
3B
3B
33.19
116.30
199.94
252.19
321.25
83.00
198S
16
3C
3C
3D
3D
3D
3D
3B
3C
3B
3B
33.19
116.30
199.94
252.19
347.25
83.00
83.00
198E
18
3C
3C
3D
3D
3D
3D
3B
3C
3B
3B
33.19
116.30
199.94
288.19
383.25
208C
14
3C
3C
3D
3D
3D
3D
3B
3C
3B
3B
33.19
116.30
199.94
252.19
321.25
83.00
208S
16
3C
3C
3D
3D
3D
3D
3B
3C
3B
3B
33.19
116.30
199.94
252.19
347.25
83.00
208E
18
3C
3C
3D
3D
3D
3D
3B
3C
3B
3B
33.19
116.30
199.94
288.19
383.25
83.00
Pos
•
Pos
•
Pos
•
Pos
•
Pos
•
6.00
#1
#3
#5
#7
#9
4.63
Pos
Pos
Pos
Pos
Pos
#2
#4
#6
#8
#10
•
A
B
FIELD:
30
•
•
C
•
D
2.88
.563 DIA.
F
•
E
INSTALL ISOLATORS AT THE
CORRESPONDING LOAD POINTS.
TOP VIEW
.50-13
TAPPED
FRONT VIEW
.25
CNT
BOX
END
2.38 FREE
TOP VIEW
2.0 INSTALLATION (CONT.)
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
2.6.2 ACDX 048-208 Spring Vibration Isolators
with Aluminum Fin Condenser
ACDX-B
Unit
No.
Model Fans
Pos.
#1
XL
Pos.
#2
XL
Pos.
#3
XL
Pos.
#4
XL
Pos.
#5
XL
Pos.
#6
XL
Pos.
#7
XL
Pos.
#8
XL
Pos.
#9
XL
Pos.
#10
XL
Dimensions (Inches)
A
Dim.
B
Dim.
C
Dim.
D
Dim.
E
Dim.
F
Dim.
048S
4
900
1000 1000
900
-
-
-
-
-
-
28.19
101.12
-
-
-
83.00
048E
6
800
1000
700
800
700
-
-
-
-
28.19
80.37
134.37
-
-
83.00
800
058C
4
900
1100 1100
900
-
-
-
-
-
-
28.19
101.12
-
-
-
83.00
058S
6
800
1000
800
700
900
700
-
-
-
-
28.19
80.37
134.37
-
-
83.00
83.00
058E
8
900
1200 1000
800
1100
900
-
-
-
-
28.19
86.12
157.12
-
-
068C
4
1000
1100 1200
900
-
-
-
-
-
-
28.19
101.12
-
-
-
83.00
068S
6
800
1000
700
900
800
-
-
-
-
28.19
80.37
134.37
-
-
83.00
83.00
900
068E
8
900
1200 1100
900
1200
1000
-
-
-
-
28.19
86.12
157.12
-
-
098C
6
1400
1400 1000
1000
1000
1000
-
-
-
-
28.19
80.37
134.37
-
-
83.00
098S
8
1500
1500 1100
1100
1300
1300
-
-
-
-
28.19
86.12
157.12
-
-
83.00
098E
10
1400
1400
800
800
1200
1200
1100
1100
-
-
28.19
74.74
138.62
201.76
-
83.00
108C
6
1400
1400 1100
1100
1200
1200
-
-
-
-
28.19
80.37
134.37
-
-
83.00
83.00
108S
8
1500
1500 1200
1200
1500
1500
-
-
-
-
28.19
86.12
157.12
-
-
108E
10
1400
1400
800
800
1200
1200
1100
1100
-
-
28.19
74.74
138.62
201.76
-
83.00
118C
8
1500
1500 1300
1300
1400
1400
-
-
-
-
28.19
86.12
157.12
-
-
83.00
118S
10
1400
1400
900
900
1300
1300
1100
1100
-
-
28.19
74.74
138.62
201.76
-
83.00
118E
12
1300
1300
700
700
1100
1100
1100
1100
700
700
28.19
74.74
132.74
186.74
237.76
83.00
128C
8
1500
1500 1300
1300
1500
1500
-
-
-
-
28.19
86.12
157.12
-
-
83.00
128S
10
1400
1400
900
900
1300
1300
1100
1100
-
-
28.19
74.74
138.62
201.76
-
83.00
128E
12
1300
1300
700
700
1100
1100
1100
1100
700
700
28.19
74.74
132.74
186.74
237.76
83.00
138C
10
1400
1400
900
900
1300
1300
1100
1100
-
-
28.19
74.74
138.62
201.76
-
83.00
138S
12
1300
1300
700
700
1100
1100
1100
1100
700
700
28.19
74.74
132.74
186.74
237.76
83.00
138E
14
1300
1300
700
700
1200
1200
1100
1100
800
800
28.19
74.74
132.74
197.24
273.76
83.00
148C
12
1700
1700 1800
1800
1400
1800
600
600
-
-
33.19
132.50
216.19
285.25
-
83.00
148S
14
1500
1500 1600
1600
1500
1500
700
1200
600
600
33.19
116.30
199.94
252.19
321.25
83.00
148E
18
1500
1500 1600
1600
1700
1700
800
1300
900
900
33.19
116.30
199.94
288.19
383.25
83.00
158C
12
1700
1700 1800
1800
1400
1800
600
600
-
-
33.19
132.50
216.19
285.25
-
83.00
158S
14
1500
1500 1600
1600
1500
1500
700
1200
600
600
33.19
116.30
199.94
252.19
321.25
83.00
158E
18
1500
1500 1600
1600
1700
1700
800
1300
900
900
33.19
116.30
199.94
288.19
383.25
83.00
178C
12
1700
1700 1800
1800
1400
1800
600
600
-
-
33.19
132.50
216.19
285.25
-
83.00
178S
14
1500
1500 1600
1600
1500
1500
700
1200
600
600
33.19
116.30
199.94
252.19
321.25
83.00
178E
18
1500
1500 1600
1600
1700
1700
800
1300
900
900
33.19
116.30
199.94
288.19
383.25
83.00
188C
12
1700
1700 1800
1800
1400
1800
600
600
-
-
33.19
132.50
216.19
285.25
-
83.00
188S
14
1500
1500 1600
1600
1500
1500
700
1200
600
600
33.19
116.30
199.94
252.19
321.25
83.00
188E
18
1500
1500 1600
1600
1700
1700
800
1300
900
900
33.19
116.30
199.94
288.19
383.25
83.00
198C
14
1500
1500 1600
1600
1500
1500
700
1200
600
600
33.19
116.30
199.94
252.19
321.25
83.00
198S
16
1500
1500 1600
1600
1600
1600
800
1300
800
800
33.19
116.30
199.94
252.19
347.25
83.00
198E
18
1500
1500 1600
1600
1700
1700
800
1300
900
900
33.19
116.30
199.94
288.19
383.25
83.00
208C
14
1500
1500 1600
1600
1500
1500
700
1200
600
600
33.19
116.30
199.94
252.19
321.25
83.00
208S
16
1500
1500 1600
1600
1600
1600
800
1300
800
800
33.19
116.30
199.94
252.19
347.25
83.00
208E
18
1500
1500 1600
1600
1700
1700
800
1300
900
900
33.19
116.30
199.94
288.19
383.25
83.00
TOP VIEW
CNT
BOX
END
W
Pos
•
Pos
•
Pos
•
Pos
•
Pos
•
#1
#3
#5
#7
#9
A
.50 DIA. STUD
.625 PROJECTION
F
Pos
Pos
Pos
Pos
Pos
#2
#4
#6
#8
#10
•
A
•
B
FIELD:
NOTE:
•
C
•
D
•
H
E
B
INSTALL ISOLATORS AT THE
CORRESPONDING LOAD POINTS.
Isolator Weights over 1500 lbs. require
double springs one inside the other.
L
T
.50 MAX. DIA.
ANCHOR BOLT
DESC.
XL
XLW
RANGE
100-1500
1600-3000
A
5.125
6.875
RIBBED NEOPRENE PAD
B
6.375
8.50
DIMENSIONAL CHART
L
T
W
8
.625
2.75
10
.625
3.875
H (FREE HT.)
5.875
5.875
H (OPER. HT.)
5.25
5.25
NOTE: TOP PLATE & LOWER HOUSING - CAST ALUMINUM
31
2.0 INSTALLATION (CONT.)
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
2.6.3 ACDX 048-208 Rubber-in-Shear Vibration Isolators
with Copper Fin Condenser
ACDX-B
Pos.
Pos.
Pos.
Pos.
Pos.
Pos.
Pos.
Pos.
Pos.
Pos.
Unit
No.
Model Fans
#1
RVD
#2
RVD
#3
RVD
#4
RVD
#5
RVD
#6
RVD
#7
RVD
#8
RVD
#9
RVD
#10
RVD
Dimensions (Inches)
A
Dim.
B
Dim.
C
Dim.
D
Dim.
E
Dim.
F
Dim.
048S
4
3C
3C
3C
3C
-
-
-
-
-
-
28.19
101.12
-
-
-
83.00
048E
6
3B
3C
3C
3B
3C
3B
-
-
-
-
28.19
80.37
134.37
-
-
83.00
058C
4
3C
3C
3C
3C
-
-
-
-
-
-
28.19
101.12
-
-
-
83.00
058S
6
3B
3C
3C
3B
3C
3C
-
-
-
-
28.19
80.37
134.37
-
-
83.00
83.00
058E
8
3C
3C
3C
3C
3C
3C
-
-
-
-
28.19
86.12
157.12
-
-
068C
4
3C
3C
3C
3C
-
-
-
-
-
-
28.19
101.12
-
-
-
83.00
068S
6
3B
3C
3C
3B
3C
3C
-
-
-
-
28.19
80.37
134.37
-
-
83.00
068E
8
3C
3C
3C
3C
3C
3C
-
-
-
-
28.19
86.12
157.12
-
-
83.00
098C
6
3C
3C
3C
3C
3C
3C
-
-
-
-
28.19
80.37
134.37
-
-
83.00
098S
8
3C
3C
3C
3C
3D
3D
-
-
-
28.19
86.12
157.12
-
-
83.00
098E
10
3C
3C
3C
3C
3C
3C
3C
-
-
28.19
74.74
138.62
201.76
-
83.00
3C
108C
6
3C
3C
3C
3C
3C
3C
-
-
-
-
28.19
80.37
134.37
-
-
83.00
108S
8
3C
3C
3C
3C
3D
3D
-
-
-
-
28.19
86.12
157.12
-
-
83.00
108E
10
3C
3C
3C
3C
3C
3C
3C
3C
-
-
28.19
74.74
138.62
201.76
-
83.00
118C
8
3C
3C
3C
3C
3D
3D
-
-
-
-
28.19
86.12
157.12
-
-
83.00
83.00
118S
10
3C
3C
3C
3C
3C
3C
3C
3C
-
-
28.19
74.74
138.62
201.76
-
118E
12
3C
3C
3B
3B
3C
3C
3C
3C
3B
3B
28.19
74.74
132.74
186.74
237.76
83.00
128C
8
3C
3C
3C
3C
3D
3D
-
-
-
-
28.19
86.12
157.12
-
-
83.00
128S
10
3C
3C
3C
3C
3C
3C
3C
3C
-
-
28.19
74.74
138.62
201.76
-
83.00
128E
12
3C
3C
3B
3B
3C
3C
3C
3C
3B
3B
28.19
74.74
132.74
186.74
237.76
83.00
138C
10
3C
3C
3C
3C
3C
3C
3C
3C
-
-
28.19
74.74
138.62
201.76
-
83.00
138S
12
3C
3C
3B
3B
3C
3C
3C
3C
3B
3B
28.19
74.74
132.74
186.74
237.76
83.00
138E
14
3C
3C
3B
3B
3C
3C
3C
3C
3C
3C
28.19
74.74
132.74
197.24
273.76
83.00
148C
12
3D
3D
3D
3D
3C
3D
3B
3B
-
-
33.19
132.50
216.19
285.25
-
83.00
148S
14
3D
3D
3D
3D
3D
3D
3B
3C
3B
3B
33.19
116.30
199.94
252.19
321.25
83.00
148E
18
3D
3D
3D
3D
3D
3D
3B
3C
3C
3C
33.19
116.30
199.94
288.19
383.25
83.00
158C
12
3D
3D
3D
3D
3C
3D
3B
3B
-
-
33.19
132.50
216.19
285.25
-
83.00
158S
14
3D
3D
3D
3D
3C
3D
3B
3C
3B
3B
33.19
116.30
199.94
252.19
321.25
83.00
83.00
158E
18
3D
3D
3D
3D
3D
3D
3B
3C
3C
3C
33.19
116.30
199.94
288.19
383.25
178C
12
3D
3D
3D
3D
3C
3D
3B
3B
-
-
33.19
132.50
216.19
285.25
-
83.00
178S
14
3D
3D
3D
3D
3C
3D
3B
3C
3B
3B
33.19
116.30
199.94
252.19
321.25
83.00
83.00
178E
18
3D
3D
3D
3D
3D
3D
3B
3C
3C
3C
33.19
116.30
199.94
288.19
383.25
188C
12
3D
3D
3D
3D
3C
3D
3B
3B
-
-
33.19
132.50
216.19
285.25
-
83.00
188S
14
3D
3D
3D
3D
3C
3D
3B
3C
3B
3B
33.19
116.30
199.94
252.19
321.25
83.00
188E
18
3D
3D
3D
3D
3D
3D
3B
3C
3C
3C
33.19
116.30
199.94
288.19
383.25
83.00
198C
14
3D
3D
3D
3D
3C
3D
3B
3C
3B
3B
33.19
116.30
199.94
252.19
321.25
83.00
198S
16
3D
3D
3D
3D
3D
3D
3B
3C
3C
3C
33.19
116.30
199.94
252.19
347.25
83.00
198E
18
3D
3D
3D
3D
3D
3D
3B
3C
3C
3C
33.19
116.30
199.94
288.19
383.25
83.00
208C
14
3D
3D
3D
3D
3C
3D
3B
3C
3B
3B
33.19
116.30
199.94
252.19
321.25
83.00
208S
16
3D
3D
3D
3D
3D
3D
3B
3C
3C
3C
33.19
116.30
199.94
252.19
347.25
83.00
208E
18
3D
3D
3D
3D
3D
3D
3B
3C
3C
3C
33.19
116.30
199.94
288.19
383.25
83.00
Pos
•
Pos
•
Pos
•
Pos
•
Pos
•
6.00
#1
#3
#5
#7
#9
4.63
Pos
Pos
Pos
Pos
Pos
#2
#4
#6
#8
#10
•
A
B
FIELD:
32
•
•
C
•
D
2.88
.563 DIA.
F
•
E
INSTALL ISOLATORS AT THE
CORRESPONDING LOAD POINTS.
TOP VIEW
.50-13
TAPPED
FRONT VIEW
.25
CNT
BOX
END
2.38 FREE
TOP VIEW
2.0 INSTALLATION (CONT.)
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
2.6.4 ACDX 048-208 Spring Vibration Isolators
with Copper Fin Condenser
Dimensions (Inches)
ACDX-B
Pos.
Pos.
Pos.
Pos.
Pos.
Pos.
Pos.
Pos.
Pos.
Pos.
Unit
No.
Model Fans
#1
XL
#2
XL
#3
XL
#4
XL
#5
XL
#6
XL
#7
XL
#8
XL
#9
XL
#10
XL
A
Dim.
B
Dim.
C
Dim.
D
Dim.
E
Dim.
F
Dim.
048S
4
1000
1200 1300
1100
-
-
-
-
-
-
28.19
101.12
-
-
-
83.00
048E
6
800
1000 1000
900
1000
900
-
-
-
-
28.19
80.37
134.37
-
-
83.00
058C
4
1000
1100 1300
1100
-
-
-
-
-
-
28.19
101.12
-
-
-
83.00
058S
6
800
1000 1000
900
1000
900
-
-
-
-
28.19
80.37
134.37
-
-
83.00
83.00
058E
8
1000
1200 1200
1000
1300
1200
-
-
-
-
28.19
86.12
157.12
-
-
068C
4
1000
1200 1400
1100
-
-
-
-
-
-
28.19
101.12
-
-
-
83.00
068S
6
800
1100 1100
900
1100
1100
-
-
-
-
28.19
80.37
134.37
-
-
83.00
068E
8
1000
1200 1300
1100
1400
1200
-
-
-
-
28.19
86.12
157.12
-
-
83.00
098C
6
1400
1400 1200
1200
1200
1200
-
-
-
-
28.19
80.37
134.37
-
-
83.00
098S
8
1500
1500 1300
1300 800 (2) 800 (2)
-
-
28.19
86.12
157.12
-
-
83.00
098E
10
1400
1400 1000
1000
1500
1500
-
-
28.19
74.74
138.62
201.76
-
83.00
108C
6
1400
1400 1300
1300
1400
1400
108S
8
1400
1500 1300
1300 800 (2) 800 (2)
108E
10
1500
1400 1000
1000
118C
8
1500
1500 1500
1500 900 (2) 900 (2)
1500
1500
1300
1300
-
-
-
-
28.19
80.37
134.37
-
-
83.00
-
-
-
-
28.19
86.12
157.12
-
-
83.00
1300
1300
-
-
28.19
74.74
138.62
201.76
-
83.00
-
-
-
-
28.19
86.12
157.12
-
-
83.00
118S
10
1400
1400 1000
1000
1500
1500
1300
1300
-
-
28.19
74.74
138.62
201.76
-
83.00
118E
12
1400
1400
900
1300
1300
1300
1300
900
900
28.19
74.74
132.74
186.74
237.76
83.00
83.00
900
128C
8
1500
1500 1500
1500 900 (2) 900 (2)
-
-
-
-
28.19
86.12
157.12
-
-
128S
10
1400
1400 1000
1000
1500
1500
1300
1300
-
-
28.19
74.74
138.62
201.76
-
83.00
128E
12
1400
1400
900
900
1300
1300
1300
1300
900
900
28.19
74.74
132.74
186.74
237.76
83.00
138C
10
1400
1400 1000
1000
1500
1500
1300
1300
-
-
28.19
74.74
138.62
201.76
-
83.00
138S
12
1400
1400
900
900
1300
1300
1300
1300
900
900
28.19
74.74
132.74
186.74
237.76
83.00
83.00
138E
14
1400
1400
900
900
1400
1400
1300
1300
1000
1000
28.19
74.74
132.74
197.24
273.76
148C
12
1900
1900 2200
2200
1500
2000
800
800
-
-
33.19
132.50
216.19
285.25
-
83.00
148S
14
1600
1600 1900
1900
1800
1800
800
1300
800
800
33.19
116.30
199.94
252.19
321.25
83.00
83.00
148E
18
1600
1600 1900
1900
2000
2000
1000
1500
1200
1200
33.19
116.30
199.94
288.19
383.25
158C
12
1900
1900 2200
2200
1500
2000
800
800
-
-
33.19
132.50
216.19
285.25
-
83.00
158S
14
1600
1600 1900
1900
1800
1800
800
1300
800
800
33.19
116.30
199.94
252.19
321.25
83.00
83.00
158E
18
1600
1600 1900
1900
2000
2000
1000
1500
1200
1200
33.19
116.30
199.94
288.19
383.25
178C
12
1900
1900 2200
2200
1500
2000
800
800
-
-
33.19
132.50
216.19
285.25
-
83.00
178S
14
1600
1600 1900
1900
1800
1800
800
1300
800
800
33.19
116.30
199.94
252.19
321.25
83.00
83.00
178E
18
1600
1600 1900
1900
2000
2000
1000
1500
1200
1200
33.19
116.30
199.94
288.19
383.25
188C
12
1900
1900 2200
2200
1500
2000
800
800
-
-
33.19
132.50
216.19
285.25
-
83.00
188S
14
1600
1600 1900
1900
1800
1800
800
1300
800
800
33.19
116.30
199.94
252.19
321.25
83.00
188E
18
1600
1600 1900
1900
2000
2000
1000
1500
1200
1200
33.19
116.30
199.94
288.19
383.25
83.00
198C
14
1600
1600 1900
1900
1800
1800
800
1300
800
800
33.19
116.30
199.94
252.19
321.25
83.00
198S
16
1600
1600 1900
1900
1800
1800
900
1400
1100
1100
33.19
116.30
199.94
252.19
347.25
83.00
198E
18
1600
1600 1900
1900
2000
2000
1000
1500
1200
1200
33.19
116.30
199.94
288.19
383.25
83.00
208C
14
1600
1600 1900
1900
1800
1800
800
1300
800
800
33.19
116.30
199.94
252.19
321.25
83.00
208S
16
1600
1600 1900
1900
1800
1800
900
1400
1100
1100
33.19
116.30
199.94
252.19
347.25
83.00
208E
18
1600
1600 1900
1900
2000
2000
1000
1500
1200
1200
33.19
116.30
199.94
288.19
383.25
83.00
TOP VIEW
CNT
BOX
END
W
Pos
•
Pos
•
Pos
•
Pos
•
Pos
#1
#3
#5
#7
#9
Pos
Pos
Pos
Pos
Pos
#8
#10
A
•
.50 DIA. STUD
.625 PROJECTION
F
#2
#4
•
A
#6
•
B
•
C
•
D
•
H
E
B
L
T
FIELD:
NOTE:
INSTALL ISOLATORS AT THE
CORRESPONDING LOAD POINTS.
Isolator Weights over 1500 lbs. require
double springs one inside the other.
.50 MAX. DIA.
ANCHOR BOLT
DESC.
XL
XLW
RANGE
100-1500
1600-3000
A
5.125
6.875
RIBBED NEOPRENE PAD
B
6.375
8.50
DIMENSIONAL CHART
L
T
W
8
.625
2.75
10
.625
3.875
H (FREE HT.)
5.875
5.875
H (OPER. HT.)
5.25
5.25
NOTE: TOP PLATE & LOWER HOUSING - CAST ALUMINUM
33
2.0 INSTALLATION (CONT.)
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
2.6.5 AUDX 048-208 Rubber-in-Shear Vibration Isolators
with Aluminum Fin Condenser
AUDX-B
Unit
No.
Model Fans
Pos.
#1
lbs.
Pos.
#2
lbs.
Pos.
#3
lbs.
Pos.
#4
lbs.
Pos.
#5
lbs.
Pos.
#6
lbs.
Pos.
#7
lbs.
Pos.
#8
lbs.
Pos.
#9
lbs.
Dimensions (Inches)
Pos.
#10
lbs.
A
Dim.
B
Dim.
C
Dim.
D
Dim.
E
Dim.
F
Dim.
048S
4
3B
3C
3B
3B
-
-
-
-
-
-
28.19
101.12
-
-
-
83.00
048E
6
3B
3C
3B
3B
3B
3B
-
-
-
-
28.19
80.37
134.37
-
-
83.00
058C
4
3B
3C
3B
3B
-
-
-
-
-
-
28.19
101.12
-
-
-
83.00
058S
6
3B
3C
3B
3B
3B
3B
-
-
-
-
28.19
80.37
134.37
-
-
83.00
83.00
058E
8
3B
3C
3B
3B
3B
3B
-
-
-
-
28.19
86.12
157.12
-
-
068C
4
3B
3C
3B
3B
-
-
-
-
-
-
28.19
101.12
-
-
-
83.00
068S
6
3B
3C
3B
3B
3B
3B
-
-
-
-
28.19
80.37
134.37
-
-
83.00
068E
8
3B
3C
3B
3B
3B
3B
-
-
-
-
28.19
86.12
157.12
-
-
83.00
098C
6
3C
3C
3B
3B
3B
3B
-
-
-
-
28.19
80.37
134.37
-
-
83.00
098S
8
3C
3C
3B
3B
3B
3B
-
-
-
28.19
86.12
157.12
-
-
83.00
098E
10
3C
3C
3B
3B
3B
3B
3B
-
-
28.19
74.74
138.62
201.76
-
83.00
3B
108C
6
3C
3C
3B
3B
3B
3B
-
-
-
-
28.19
80.37
134.37
-
-
83.00
108S
8
3C
3C
3B
3B
3B
3B
-
-
-
-
28.19
86.12
157.12
-
-
83.00
108E
10
3C
3C
3B
3B
3B
3B
3B
3B
-
-
28.19
74.74
138.62
201.76
-
83.00
118C
8
3C
3C
3B
3B
3B
3B
-
-
-
-
28.19
86.12
157.12
-
-
83.00
83.00
118S
10
3C
3C
3B
3B
3B
3B
3B
3B
-
-
28.19
74.74
138.62
201.76
-
118E
12
3C
3C
3B
3B
3B
3B
3B
3B
3B
3B
28.19
74.74
132.74
186.74
237.76
83.00
128C
8
3C
3C
3B
3B
3B
3B
-
-
-
-
28.19
86.12
157.12
-
-
83.00
128S
10
3C
3C
3B
3B
3B
3B
3B
3B
-
-
28.19
74.74
138.62
201.76
-
83.00
128E
12
3C
3C
3B
3B
3B
3B
3B
3B
3B
3B
28.19
74.74
132.74
186.74
237.76
83.00
138C
10
3C
3C
3B
3B
3B
3B
3B
3B
-
-
28.19
74.74
138.62
201.76
-
83.00
138S
12
3C
3C
B3
B3
3B
3B
3B
3B
3B
3B
28.19
74.74
132.74
186.74
237.76
83.00
83.00
138E
14
3C
3C
3B
3B
3B
3B
3B
3B
3B
3B
28.19
74.74
132.74
197.24
273.76
148C
12
3D
3D
3B
3B
3B
3C
3B
3B
-
-
33.19
132.50
216.19
285.25
-
83.00
148S
14
3C
3C
3B
3B
3B
3B
3B
3C
3B
3B
33.19
116.30
199.94
252.19
321.25
83.00
83.00
148E
18
3C
3C
3B
3B
3B
3B
3B
3C
3B
3B
33.19
116.30
199.94
288.19
383.25
158C
12
3D
3D
3B
3B
3B
3C
3B
3B
-
-
33.19
132.50
216.19
285.25
-
83.00
158S
14
3C
3C
3B
3B
3B
3B
3B
3C
3B
3B
33.19
116.30
199.94
252.19
321.25
83.00
83.00
158E
18
3C
3C
3B
3B
3B
3B
3B
3C
3B
3B
33.19
116.30
199.94
288.19
383.25
178C
12
3D
3D
3B
3B
3B
3C
3B
3B
-
-
33.19
132.50
216.19
285.25
-
83.00
178S
14
3C
3C
3B
3B
3B
3B
3B
3C
3B
3B
33.19
116.30
199.94
252.19
321.25
83.00
83.00
178E
18
3C
3C
3B
3B
3B
3B
3B
3C
3B
3B
33.19
116.30
199.94
288.19
383.25
188C
12
3D
3D
3B
3B
3B
3C
3B
3B
-
-
33.19
132.50
216.19
285.25
-
83.00
188S
14
3C
3C
3B
3B
3B
3B
3B
3C
3B
3B
33.19
116.30
199.94
252.19
321.25
83.00
188E
18
3C
3C
3B
3B
3B
3B
3B
3C
3B
3B
33.19
116.30
199.94
288.19
383.25
83.00
198C
14
3C
3C
3B
3B
3B
3B
3B
3C
3B
3B
33.19
116.30
199.94
252.19
321.25
83.00
198S
16
3C
3C
3B
3B
3B
3B
3B
3C
3B
3B
33.19
116.30
199.94
252.19
347.25
83.00
198E
18
3C
3C
3B
3B
3B
3B
3B
3C
3B
3B
33.19
116.30
199.94
288.19
383.25
83.00
208C
14
3C
3C
3B
3B
3B
3B
3B
3C
3B
3B
33.19
116.30
199.94
252.19
321.25
83.00
208S
16
3C
3C
3B
3B
3B
3B
3B
3C
3B
3B
33.19
116.30
199.94
252.19
347.25
83.00
208E
18
3C
3C
3B
3B
3B
3B
3B
3C
3B
3B
33.19
116.30
199.94
288.19
383.25
83.00
Pos
•
Pos
•
Pos
•
Pos
•
Pos
•
6.00
#1
#3
#5
#7
#9
4.63
Pos
Pos
Pos
Pos
Pos
#2
#4
#6
#8
#10
•
A
B
FIELD:
34
•
•
C
•
D
2.88
.563 DIA.
F
•
E
INSTALL ISOLATORS AT THE
CORRESPONDING LOAD POINTS.
TOP VIEW
.50-13
TAPPED
FRONT VIEW
.25
CNT
BOX
END
2.38 FREE
TOP VIEW
2.0 INSTALLATION (CONT.)
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
2.6.6 AUDX 048-208 Spring Vibration Isolators
with Aluminum Fin Condenser
Dimensions (Inches)
AUDX-B
Pos.
Pos.
Pos.
Pos.
Pos.
Pos.
Pos.
Pos.
Pos.
Pos.
Unit
No.
Model Fans
#1
lbs.
#2
lbs.
#3
lbs.
#4
lbs.
#5
lbs.
#6
lbs.
#7
lbs.
#8
lbs.
#9
lbs.
#10
lbs.
A
Dim.
B
Dim.
-
-
-
-
-
28.19
101.12
-
-
-
83.00
-
-
-
-
28.19
80.37
134.37
-
-
83.00
048S
4
900
1100
800
800
-
048E
6
800
1000
600
600
700
058C
4
900
1100
800
800
-
058S
6
800
1000
600
600
700
-
C
Dim.
D
Dim.
E
Dim.
F
Dim.
-
-
-
-
28.19
101.12
-
-
-
83.00
-
-
-
-
28.19
80.37
134.37
-
-
83.00
83.00
058E
8
1000
1200
800
800
600
-
-
-
-
28.19
86.12
157.12
-
-
068C
4
900
1100
800
800
-
-
-
-
-
-
28.19
101.12
-
-
-
83.00
068S
6
800
1000
600
600
700
700
-
-
-
-
28.19
80.37
134.37
-
-
83.00
068E
8
1000
1200
900
800
900
900
-
-
-
-
28.19
86.12
157.12
-
-
83.00
098C
6
1400
1400
700
700
700
700
-
-
-
-
28.19
80.37
134.37
-
-
83.00
098S
8
1500
1500
700
700
1000
1000
-
-
-
28.19
86.12
157.12
-
-
83.00
098E
10
1400
1400
700
700
800
800
800
-
-
28.19
74.74
138.62
201.76
-
83.00
108C
6
1400
1400
600
600
700
700
-
-
-
-
28.19
80.37
134.37
-
-
83.00
108S
8
1500
1500
700
700
1000
1000
-
-
-
-
28.19
86.12
157.12
-
-
83.00
108E
10
1400
1400
700
700
800
800
800
800
-
-
28.19
74.74
138.62
201.76
-
83.00
118C
8
1500
1500
800
800
900
900
-
-
-
-
28.19
86.12
157.12
-
-
83.00
800
118S
10
1400
1400
700
700
800
800
800
800
-
-
28.19
74.74
138.62
201.76
-
83.00
118E
12
1400
1400
600
600
700
700
600
600
700
700
28.19
74.74
132.74
186.74
237.76
83.00
128C
8
1500
1500
800
800
900
900
-
-
-
-
28.19
86.12
157.12
-
-
83.00
128S
10
1400
1400
700
700
800
800
800
800
-
-
28.19
74.74
138.62
201.76
-
83.00
128E
12
1400
1400
600
600
700
700
600
600
700
700
28.19
74.74
132.74
186.74
237.76
83.00
138C
10
1400
1400
700
700
800
800
800
800
-
-
28.19
74.74
138.62
201.76
-
83.00
138S
12
1400
1400
600
600
700
700
600
600
700
700
28.19
74.74
132.74
186.74
237.76
83.00
138E
14
1400
1400
600
600
700
700
600
600
800
800
28.19
74.74
132.74
197.24
273.76
83.00
148C
12
1700
1700
900
900
900
1300
700
700
-
-
33.19
132.50
216.19
285.25
-
83.00
148S
14
1600
1600
900
900
700
700
800
1200
700
700
33.19
116.30
199.94
252.19
321.25
83.00
148E
18
1600
1600
900
900
900
900
900
700
1000
1000
33.19
116.30
199.94
288.19
383.25
83.00
158C
12
1700
1700
900
900
900
1300
700
1400
-
-
33.19
132.50
216.19
285.25
-
83.00
158S
14
1600
1600
900
900
700
700
800
1200
700
700
33.19
116.30
199.94
252.19
321.25
83.00
158E
18
1600
1600
900
900
900
900
900
1400
100
100
33.19
116.30
199.94
288.19
383.25
83.00
178C
12
1700
1700
900
900
900
1300
700
700
-
-
33.19
132.50
216.19
285.25
-
83.00
178S
14
1600
1600
900
900
700
700
800
1200
700
700
33.19
116.30
199.94
252.19
321.25
83.00
178E
18
1600
1600
900
900
900
900
900
1400
1000
1000
33.19
116.30
199.94
288.19
383.25
83.00
188C
12
1700
1700
900
900
900
1300
700
700
-
-
33.19
132.50
216.19
285.25
-
83.00
188S
14
1600
1600
900
900
700
700
800
1200
700
700
33.19
116.30
199.94
252.19
321.25
83.00
188E
18
1600
1600
900
900
900
900
900
1400
1000
1000
33.19
116.30
199.94
288.19
383.25
83.00
198C
14
1600
1600
900
900
700
700
800
1200
700
700
33.19
116.30
199.94
252.19
321.25
83.00
198S
16
1600
1600
900
900
800
800
900
1300
900
900
33.19
116.30
199.94
252.19
347.25
83.00
198E
18
1600
1600
900
900
900
900
900
1400
1000
1000
33.19
116.30
199.94
288.19
383.25
83.00
208C
14
1600
1600
900
900
700
700
800
1200
700
700
33.19
116.30
199.94
252.19
321.25
83.00
208S
16
1600
1600
900
900
800
800
900
1300
900
900
33.19
116.30
199.94
252.19
347.25
83.00
208E
18
1600
1600
900
900
900
900
900
1400
1000
1000
33.19
116.30
199.94
288.19
383.25
83.00
TOP VIEW
CNT
BOX
END
W
Pos
•
Pos
•
Pos
•
Pos
•
Pos
#1
#3
#5
#7
#9
A
•
.50 DIA. STUD
.625 PROJECTION
F
Pos
Pos
Pos
Pos
Pos
#2
#4
#6
#8
#10
•
A
•
B
•
C
•
D
•
H
E
B
L
T
FIELD:
NOTE:
INSTALL ISOLATORS AT THE
CORRESPONDING LOAD POINTS.
Isolator Weights over 1500 lbs. require
double springs one inside the other.
.50 MAX. DIA.
ANCHOR BOLT
DESC.
XL
XLW
RANGE
100-1500
1600-3000
A
5.125
6.875
RIBBED NEOPRENE PAD
B
6.375
8.50
DIMENSIONAL CHART
L
T
W
8
.625
2.75
10
.625
3.875
H (FREE HT.)
5.875
5.875
NOTE: TOP PLATE & LOWER HOUSING - CAST ALUMINUM
H (OPER. HT.)
5.25
5.25
35
2.0 INSTALLATION (CONT.)
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
2.6.7 AUDX 048-208 Rubber-in-Shear Vibration Isolators
with Copper Fin Condenser
Dimensions (Inches)
AUDX-B
Pos.
Pos.
Pos.
Pos.
Pos.
Pos.
Pos.
Pos.
Pos.
Pos.
Unit
No.
Model Fans
#1
lbs.
#2
lbs.
#3
lbs.
#4
lbs.
#5
lbs.
#6
lbs.
#7
lbs.
#8
lbs.
#9
lbs.
#10
lbs.
A
Dim.
B
Dim.
C
Dim.
D
Dim.
E
Dim.
F
Dim.
048S
4
3C
3C
3C
3C
-
-
-
-
-
-
28.19
101.12
-
-
-
83.00
048E
6
3B
3C
3C
3B
3C
3B
-
-
-
-
28.19
80.37
134.37
-
-
83.00
058C
4
3C
3C
3C
3C
-
-
-
-
-
-
28.19
101.12
-
-
-
83.00
058S
6
3B
3C
3C
3B
3C
3C
-
-
-
-
28.19
80.37
134.37
-
-
83.00
83.00
058E
8
3C
3C
3C
3C
3C
3C
-
-
-
-
28.19
86.12
157.12
-
-
068C
4
3C
3C
3C
3C
-
-
-
-
-
-
28.19
101.12
-
-
-
83.00
068S
6
3B
3C
3C
3B
3C
3C
-
-
-
-
28.19
80.37
134.37
-
-
83.00
068E
8
3C
3C
3C
3C
3C
3C
-
-
-
-
28.19
86.12
157.12
-
-
83.00
098C
6
3C
3C
3C
3C
3C
3C
-
-
-
-
28.19
80.37
134.37
-
-
83.00
098S
8
3C
3C
3C
3C
3D
3D
-
-
-
28.19
86.12
157.12
-
-
83.00
098E
10
3C
3C
3C
3C
3C
3C
3C
-
-
28.19
74.74
138.62
201.76
-
83.00
3C
108C
6
3C
3C
3C
3C
3C
3C
-
-
-
-
28.19
80.37
134.37
-
-
83.00
108S
8
3C
3C
3C
3C
3D
3D
-
-
-
-
28.19
86.12
157.12
-
-
83.00
108E
10
3C
3C
3C
3C
3C
3C
3C
3C
-
-
28.19
74.74
138.62
201.76
-
83.00
118C
8
3C
3C
3C
3C
3D
3D
-
-
-
-
28.19
86.12
157.12
-
-
83.00
83.00
118S
10
3C
3C
3C
3C
3C
3C
3C
3C
-
-
28.19
74.74
138.62
201.76
-
118E
12
3C
3C
3B
3B
3C
3C
3C
3C
3B
3B
28.19
74.74
132.74
186.74
237.76
83.00
128C
8
3C
3C
3C
3C
3D
3D
-
-
-
-
28.19
86.12
157.12
-
-
83.00
128S
10
3C
3C
3C
3C
3C
3C
3C
3C
-
-
28.19
74.74
138.62
201.76
-
83.00
128E
12
3C
3C
3B
3B
3C
3C
3C
3C
3B
3B
28.19
74.74
132.74
186.74
237.76
83.00
138C
10
3C
3C
3C
3C
3C
3C
3C
3C
-
-
28.19
74.74
138.62
201.76
-
83.00
138S
12
3C
3C
3B
3B
3C
3C
3C
3C
3B
3B
28.19
74.74
132.74
186.74
237.76
83.00
138E
14
3C
3C
3B
3B
3C
3C
3C
3C
3C
3C
28.19
74.74
132.74
197.24
273.76
83.00
148C
12
3D
3D
3D
3D
3C
3D
3B
3B
-
-
33.19
132.50
216.19
285.25
-
83.00
148S
14
3D
3D
3D
3D
3D
3D
3B
3C
3B
3B
33.19
116.30
199.94
252.19
321.25
83.00
148E
18
3D
3D
3D
3D
3D
3D
3B
3C
3C
3C
33.19
116.30
199.94
288.19
383.25
83.00
158C
12
3D
3D
3D
3D
3C
3D
3B
3B
-
-
33.19
132.50
216.19
285.25
-
83.00
158S
14
3D
3D
3D
3D
3C
3D
3B
3C
3B
3B
33.19
116.30
199.94
252.19
321.25
83.00
83.00
158E
18
3D
3D
3D
3D
3D
3D
3B
3C
3C
3C
33.19
116.30
199.94
288.19
383.25
178C
12
3D
3D
3D
3D
3C
3D
3B
3B
-
-
33.19
132.50
216.19
285.25
-
83.00
178S
14
3D
3D
3D
3D
3C
3D
3B
3C
3B
3B
33.19
116.30
199.94
252.19
321.25
83.00
83.00
178E
18
3D
3D
3D
3D
3D
3D
3B
3C
3C
3C
33.19
116.30
199.94
288.19
383.25
188C
12
3D
3D
3D
3D
3C
3D
3B
3B
-
-
33.19
132.50
216.19
285.25
-
83.00
188S
14
3D
3D
3D
3D
3C
3D
3B
3C
3B
3B
33.19
116.30
199.94
252.19
321.25
83.00
188E
18
3D
3D
3D
3D
3D
3D
3B
3C
3C
3C
33.19
116.30
199.94
288.19
383.25
83.00
198C
14
3D
3D
3D
3D
3C
3D
3B
3C
3B
3B
33.19
116.30
199.94
252.19
321.25
83.00
198S
16
3D
3D
3D
3D
3D
3D
3B
3C
3C
3C
33.19
116.30
199.94
252.19
347.25
83.00
198E
18
3D
3D
3D
3D
3D
3D
3B
3C
3C
3C
33.19
116.30
199.94
288.19
383.25
83.00
208C
14
3D
3D
3D
3D
3C
3D
3B
3C
3B
3B
33.19
116.30
199.94
252.19
321.25
83.00
208S
16
3D
3D
3D
3D
3D
3D
3B
3C
3C
3C
33.19
116.30
199.94
252.19
347.25
83.00
208E
18
3D
3D
3D
3D
3D
3D
3B
3C
3C
3C
33.19
116.30
199.94
288.19
383.25
83.00
Pos
•
Pos
•
Pos
•
Pos
•
Pos
•
6.00
#1
#3
#5
#7
#9
4.63
Pos
Pos
Pos
Pos
Pos
#2
#4
#6
#8
#10
•
A
FIELD:
36
•
B
•
C
•
D
2.88
.563 DIA.
F
•
E
INSTALL ISOLATORS AT THE
CORRESPONDING LOAD POINTS.
TOP VIEW
.50-13
TAPPED
FRONT VIEW
.25
CNT
BOX
END
2.38 FREE
TOP VIEW
2.0 INSTALLATION (CONT.)
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
2.6.8 AUDX 048-208 Spring Vibration Isolators
with Copper Fin Condenser
AUDX-B
Unit
No.
Model Fans
Pos.
#1
lbs.
Pos.
#2
lbs.
Pos.
#3
lbs.
Pos.
#4
lbs.
Pos.
#5
lbs.
Pos.
#6
lbs.
Pos.
#7
lbs.
Pos.
#8
lbs.
Pos.
#9
lbs.
Dimensions (Inches)
Pos.
#10
lbs.
A
Dim.
B
Dim.
C
Dim.
D
Dim.
E
Dim.
F
Dim.
048S
4
900
1100 1000
1000
-
-
-
-
-
-
28.19
101.12
-
-
-
83.00
048E
6
800
1100
800
800
900
900
-
-
-
-
28.19
80.37
134.37
-
-
83.00
058C
4
900
1100 1000
1000
-
-
-
-
-
-
28.19
101.12
-
-
-
83.00
058S
6
900
1100
800
800
900
900
-
-
-
-
28.19
80.37
134.37
-
-
83.00
83.00
058E
8
1000
1300 1000
1000
1200
1200
-
-
-
-
28.19
86.12
157.12
-
-
068C
4
900
1100 1000
1000
-
-
-
-
-
-
28.19
101.12
-
-
-
83.00
068S
6
900
1100
800
800
900
900
-
-
-
-
28.19
80.37
134.37
-
-
83.00
068E
8
1000
1300 1000
1000
1200
1200
-
-
-
-
28.19
86.12
157.12
-
-
83.00
098C
6
1400
1400
800
800
900
900
-
-
-
-
28.19
80.37
134.37
-
-
83.00
098S
8
1500
1500 1000
1000
1200
1200
-
-
-
-
28.19
86.12
157.12
-
-
83.00
098E
10
1400
1400
900
900
1000
1000
1000
1000
-
-
28.19
74.74
138.62
201.76
-
83.00
108C
6
1500
1500 1100
1100
1200
1200
-
-
-
-
28.19
80.37
134.37
-
-
83.00
83.00
108S
8
1500
1500
800
800
1100
1100
-
-
-
-
28.19
86.12
157.12
-
-
108E
10
1400
1400
900
900
1000
1000
1000
1000
-
-
28.19
74.74
138.62
201.76
-
83.00
118C
8
1500
1500 1000
1000
1200
1200
-
-
-
-
28.19
86.12
157.12
-
-
83.00
118S
10
1400
1400
900
900
1000
1000
1000
1000
-
-
28.19
74.74
138.62
201.76
-
83.00
118E
12
1400
1400
800
800
900
900
800
800
900
900
28.19
74.74
132.74
186.74
237.76
83.00
128C
8
1500
1500 1000
1000
1200
1200
-
-
-
-
28.19
86.12
157.12
-
-
83.00
128S
10
1400
1400
900
900
1000
1000
1000
1000
-
-
28.19
74.74
138.62
201.76
-
83.00
128E
12
1400
1400
800
800
900
900
800
800
900
900
28.19
74.74
132.74
186.74
237.76
83.00
138C
10
1400
1400
900
900
1000
1000
1000
1000
-
-
28.19
74.74
138.62
201.76
-
83.00
138S
12
1400
1400
800
800
900
900
800
800
900
900
28.19
74.74
132.74
186.74
237.76
83.00
138E
14
1400
1400
800
800
1000
1000
1100
1100
1000
1000
28.19
74.74
132.74
197.24
273.76
83.00
148C
12
1900
1900 1200
1200
1000
1500
900
900
-
-
33.19
132.50
216.19
285.25
-
83.00
148S
14
1700
1700 1100
1100
1000
1000
900
1300
900
900
33.19
116.30
199.94
252.19
321.25
83.00
148E
18
1700
1700 1200
1200
1200
1200
100
1600
1300
1300
33.19
116.30
199.94
288.19
383.25
83.00
158C
12
1900
1900 1200
1200
1000
1500
900
900
-
-
33.19
132.50
216.19
285.25
-
83.00
158S
14
1700
1700 1100
1100
1000
1000
900
1300
900
900
33.19
116.30
199.94
252.19
321.25
83.00
83.00
158E
18
1700
1700 1200
1200
1200
1200
100
1600
1300
1300
33.19
116.30
199.94
288.19
383.25
178C
12
1900
1900 1200
1200
1000
1500
900
900
-
-
33.19
132.50
216.19
285.25
-
83.00
178S
14
1700
1700 1100
1100
1000
1000
900
1300
900
900
33.19
116.30
199.94
252.19
321.25
83.00
83.00
178E
18
1700
1700 1200
1200
1200
1200
100
1600
1300
1300
33.19
116.30
199.94
288.19
383.25
188C
12
1900
1900 1200
1200
1000
1500
900
900
-
-
33.19
132.50
216.19
285.25
-
83.00
188S
14
1700
1700 1100
1100
1000
1000
900
1300
900
900
33.19
116.30
199.94
252.19
321.25
83.00
83.00
188E
18
1700
1700 1200
1200
1200
1200
100
1600
1300
1300
33.19
116.30
199.94
288.19
383.25
198C
14
1700
1700 1100
1100
1000
1500
900
1300
900
900
33.19
116.30
199.94
252.19
321.25
83.00
198S
16
1700
1700 1200
1200
1000
1000
1000
1500
1200
1200
33.19
116.30
199.94
252.19
347.25
83.00
198E
18
1700
1700 1200
1200
1200
1200
1100
1600
1300
1300
33.19
116.30
199.94
288.19
383.25
83.00
208C
14
1700
1700 1100
1100
1000
1500
900
1300
900
900
33.19
116.30
199.94
252.19
321.25
83.00
208S
16
1700
1700 1200
1200
1000
1000
1000
1500
1200
1200
33.19
116.30
199.94
252.19
347.25
83.00
208E
18
1700
1700 1200
1200
1200
1200
1100
1600
1300
1300
33.19
116.30
199.94
288.19
383.25
83.00
TOP VIEW
CNT
BOX
END
W
Pos
•
Pos
•
Pos
•
Pos
•
Pos
#1
#3
#5
#7
#9
A
•
.50 DIA. STUD
.625 PROJECTION
F
Pos
Pos
Pos
Pos
Pos
#2
#4
#6
#8
#10
•
A
•
B
•
C
•
D
•
H
E
B
L
T
FIELD:
NOTE:
INSTALL ISOLATORS AT THE
CORRESPONDING LOAD POINTS.
Isolator Weights over 1500 lbs. require
double springs one inside the other.
.50 MAX. DIA.
ANCHOR BOLT
DESC.
XL
XLW
RANGE
100-1500
1600-3000
A
5.125
6.875
RIBBED NEOPRENE PAD
B
6.375
8.50
DIMENSIONAL CHART
L
T
W
8
.625
2.75
10
.625
3.875
H (FREE HT.)
5.875
5.875
NOTE: TOP PLATE & LOWER HOUSING - CAST ALUMINUM
H (OPER. HT.)
5.25
5.25
37
2.0 INSTALLATION (CONT.)
2.7
2.7.1
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
Piping Connections
ACDX-B/AUDX-B
ACDX-B Chilled Water Piping
After the unit has been leveled, the external water piping
may be made up. Be sure water piping is connected to
the correct fittings. The water out connection is closest
to the expansion valve (Refrigerant-in) end. A chilled
water flow switch must be installed.
Water flow through the cooler must remain constant
for proper chiller operation. Water pressure gauges
are recommended to check the water pressure and flow
rate in the system, before and after the cooler, and to
determine if variations occur in the cooler and system.
The cooler must be freeze protected with the correct
percentage of glycol if ambient temperatures are
expected to be below 32°F. If sub-freezing ambient
temperatures are possible, all exposed field water piping
should have heater tape and insulation or a glycol
mixture to prevent freezing. Main power is required to
keep the sump heaters and cooler heaters on.
When installing pressure taps to measures the amount
of pressure drop across the water side of the cooler,
the taps should be located in the water piping a
minimum of twenty-four (24) inches downstream from
any connections (flange, elbow, etc.).
There are many piping and control systems which may
be used to assure constant water flow through the
cooler. A typical system is shown in Figure 2.7A. It
uses a three way motorized valve which operates in
response to the discharge air temperature of the cooling
coil.
Another system which is sometimes used consists of a
two way modulating control valve, which also responds
to the discharge air temperature of the cooling coil,
used in conjunction with a spring loaded bypass
regulating valve as shown in Figure 2.7B. The bypass
valve must be set to assure the full flow of circulating
chilled water when the modulating valve is completely
closed.
Other systems are noted in the ASHRAE Handbook and
may serve equally well. Whatever system is selected,
water flow must be constantly maintained through the
chiller.
If the system is arranged for the dual purpose of cooling
in the summer and heating in the winter, the cooler
must be valved off during the heating season so that
hot water will not pass through the cooler. This may
be either a manual or automatic change-over operation.
There are also times, such as early spring and late fall,
when both heating and cooling are required. This
should also be considered when designing heating and
38
cooling systems. For various piping arrangements
consult the ASHRAE Handbook.
Flow Switch - A chilled water flow switch must be
installed in the external chilled water outlet piping.
Dunham-Bush recommends a paddle-type flow switch
be installed per the manufacturer’s instructions. Make
certain that the switch is set to trip at approximately
50% of design flow rate.
It must be located in a horizontal section on the pipe
where there are at least five (5) pipe diameters on both
sides of the slow switch before any other connections.
The flow switch paddle must be adjusted to the size
pipe in which the paddle is installed. Consult the wiring
diagram accompanying the unit for the electrical
connections to interlock the flow switch with the control
panel.
2.7.2 Water Connections
Multiple Packaged Chillers
Multiple unit packaged chillers have been successfully
applied to parallel and series piping systems for years.
Special attention, however, must be given to the
particulars involved for each application or serious
operational problems can result.
The following are guidelines which should be followed
for multiple unit application.
NOTE: A constant chilled water flow rate is assumed to
be maintained through all coolers.
2.7.2.1 Parallel Chilled Water Flow Units
Both units operate simultaneously, modulating with
load variations. Each packaged chiller operating
thermostat senses leaving water temperature using
standard controls (See Figure 2.7C). The set point of
each thermostat will be set to maintain the desired
unloading. In addition, for each chiller package, the
optional suction sensing hot gas by-pass valve provides
modulating capacity reduction to approximately 10%
on single compressor models.
2.7.2.2 Series Chilled Water Flow Units
Units should be equally sized. The upstream unit will
carry a larger load because it cools higher temperature
water. The thermostats sense leaving fluid temperatures
(See Figure 2.7D). The Number 1 unit thermostat will
unload or cycle off the packaged chiller before
unloading occurs on the Number 2 unit.
2.0 INSTALLATION (CONT.)
2.7.3 Water Quality
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
ACDX-B
Coolers used in these packages are made of steel, copper
and brass and are suitable for operation with wellmaintained water systems. However, if the water used
in cooler is corrosive, high in mineral content or
entrained solids, the water can cause reduced performance and even failure of heat exchangers. Therefore,
it may be necessary to obtain the services of a water
treatment consultant and to provide and maintain water
treatment. This is particularly important with glycol
systems.
See Maintenance Section 4.0 Paragraph 4.4 for
maintenance of heat exchangers.
2.7.4 AUDX-B Condensing Unit Piping
The unit is supplied with a suction filter to protect the
compressor from dirt, etc., which may be entrained in
the system low side components. THE FILTER SHOULD
BE REMOVED FROM THE SYSTEM AFTER A WEEK’S
RUNNING. This will allow plenty of time for system clean
up. Leaving the filter in the system will cause an
increased pressure drop in the suction line and decrease
the unit capacity and efficiency. A ball valve in the field
supplied suction line before the suction filter is
recommended for isolation of the suction filter for easy
filter removal.
2.7.4.1 General
The AUDX-B condensing unit may be connected to either
a cooling coil or a remote cooler. When making
connections, all refrigerant piping should be installed
in accordance with local or state codes and the latest
issue of ANSI/ASHRAE Standard 15 “Safety Code for
Mechanical Refrigeration”. Hard drawn type L or K
copper tubing should be used. Soft tubing, where
bending is required, may be used providing it is
protected in accordance with the local code restrictions.
Careful considerations must always be given to sizing
the liquid line and suction line. For sizing lines, refer to
Compressor Piping Manual, Form No. 4120.1 or ASHRAE
Handbook.
A suction to liquid heat exchanger must be used if the
evaporator is installed more than 30 ft. above the
condensing unit or if the pressure drop in the liquid
line exceeds 15 psi. This is necessary to prevent flashing
gas at the expansion valve.
When a unit is provided with the hot gas bypass option,
a hot gas regulator and solenoid will be mounted at
the condensing unit. The contractor must furnish an
insulated hot gas line with check valve. The line must
be piped for an evaporator coil or cooler as shown in
Figure 2.7E.
For information concerning the installation, operation
and servicing of Dunham-Bush coolers, consult the latest
revision of Form 8110.
39
2.0 INSTALLATION (CONT.)
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
TYPICAL CHILLED WATER PIPING
Figure 2.7A
Figure 2.7B
TYPICAL MULTIPLE PACKAGED CHILLED WATER CONNECTIONS
PARALLEL FLOW
Figure 2.7C
SERIES FLOW
Figure 2.7D
40
Figure 2.7E
2.0 INSTALLATION (CONT.)
2.8
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
Electrical Connections
ACDX-B/AUDX-B
All units are wired as completely as possible at the factory
prior to delivery. The connections which must be made by
the installer are to the main power source, control power
source, separate chiller heater power source and interlocking
the satellite equipment. In connecting power wiring to the
unit, the following precautions should be taken:
• All field wiring is to be in accordance with the National
Electrical Code and state and local codes.
• All wiring is to be checked for damage and all terminal
connections tested for tightness. Unit terminal blocks are
to be connected with copper conductors only, sized per
ampacity listed on unit data plate.
• The power supply should match the unit nameplate in
volts, phase and Hertz. Voltage must be within ± 10% of
nameplate value and voltage imbalance between phases
must not exceed 2%.
• For minimum circuit ampacity and maximum fuse size,
see Unit Nameplate.
• All electrical connections should be periodically tightened.
Refer to the unit nameplate data for the minimum circuit
ampacity and maximum allowable dual element fuse size.
The factory supplied field power block is sized to accept wires
sized per NEC, 75C (3-in-conduit) up to 500MCM as required.
When multiple wires per pole are required to stay at or below
500MCM, the power block supplied will have multiple wire
per pole capability.
A separate 15 amp 115V field power supply is required to
power the main control circuit (which includes the compressor
sump heaters) unless the control transformer option is
included.
Also, another separate 15 amp 115V field power supply is
required to power the chiller barrel heater(s) unless the chiller
heater transformer option is included.
2.8.1
Field Control Wiring
1. Unit Control Contact - Unit on-off control should be done
through the terminals shown on the wiring diagram. An
open contact shuts down the unit. Time clock, night shut
down, and energy management shut down should all be
done from these terminals and contacts should be applied in series. Shielded wire should be used. Ground the
shield at the control panel only.
2. Flow Switch - The flow switch contacts should be installed
between the terminals shown on the wiring diagram for
the flow switch.
3. Chilled Water Pump Interlock (CWP) - An auxiliary switch
from the chilled water pump contactor should be installed
between the terminals shown on the wiring diagram. This
helps ensure chilled water pump operation before the unit
is started.
4. Chilled Water Pump - The control of the chilled water pump
must be worked out by the system designer. It is necessary for the pump to be on during any compressor operation. However, it is likely that the pump should remain on
throughout all occupied operation or even at night for
freeze protection.
5.
6.
7.
8.
9.
The chilled water pump contacts shown on the wiring
diagram should be used in the pump control circuit. These
contacts stay closed whenever the unit is enabled (see
item 1) and the internal schedule of operation is set for
the unit to operate. However, especially in cases of low
ambient temperature, the contacts should not be the sole
means of controlling pump operation.
Remote Evaporator - On AUDX units with remote chiller
barrel or DX coil, field wiring is required for liquid line
solenoids, water or air temperature sensors and flow
switches. The 120VAC wiring should be run in a separate
conduit from the sensor wiring. Also, shielded cable must
be used for the sensor wiring with the shield grounded
only to the main unit sub-panel.
Crankcase heaters are wired in the control circuit. On
units with field-supplied control circuit power, the 15 amp
fused disconnect switch must be closed (on) at all times
for heater operation. On units ordered with the control
transformer option, the main unit power field fused disconnect (and local safety switch if used) must be closed
(on) at all times for heater operation.
The compressor crankcase heaters must be energized for
24 hours before the unit is initially started or after a prolonged open disconnect.
All field wiring must be in accordance with all applicable
local and national codes.
Minimum and maximum unit supply voltages are shown
in the following tabulated data.
Supply Voltage
Nominal
200V
230V
460V
575V
Minimum
187V
207V
414V
518V
Maximum
220V
253V
506V
632V
2.8.2 General Electrical Notes
1. Main power must be supplied from a single power source
field-supplied fused disconnect(s) using dual element time
delay fuses. Power supply is three phase unless otherwise
shown.
2. The maximum incoming wire size is 500 mcm. On units
having a MCA greater than 500 mcm wire, the factorysupplied field power terminal block will accept two parallel field wires per pole.
3. Compressor starting is XL or double delta only.
4. Control circuit power (115VAC) must be field-supplied from
a separate field-mounted fused disconnect (15 amp max.
fuse size) unless the factory-mounted and wired control
transformer option is ordered.
5. Cooler heater power (115 VAC) must be field-supplied from
a separate field-mounted fused disconnect (15 amp max.
fuse size).
NOTES:
MCA: Minimum Circuit Ampacity
MFS: Maximum Fuse
LRA-XL: Locked Rotor Amps Standard Across the Line Starting
41
2.0 INSTALLATION (CONT.)
2.8.3
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
Electrical Data:
Units & Compressors
COMPACT LENGTH
Unit
ACDX-B Model
Compact
58
Compact
68
Compact
98
Compact
108
Compact
118
Compact
128
Compact
138
Compact
148
Compact
158
Compact
178
Compact
188
Compact
198
Compact
208
Notes:
42
(1)
(2)
Voltage
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
PH
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
HZ
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
MCA
305
269
135
135
106
360
316
158
158
126
461
404
203
203
161
506
444
223
223
176
558
488
245
245
192
608
536
268
268
212
664
586
293
293
233
790
637
319
319
240
785
644
323
323
259
803
790
355
355
279
899
774
379
379
299
934
806
404
404
319
957
844
423
423
335
MFS
500
450
225
225
175
600
500
250
250
200
600
500
250
250
225
700
600
300
300
250
700
600
300
300
250
800
700
350
350
300
800
800
400
400
300
1000
800
400
400
300
1000
800
400
400
300
1000
1000
450
450
350
1000
1000
450
450
350
1200
1000
500
500
400
1200
1000
500
500
400
Compressors
Qty.
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
MCA - Minimum Circuit Ampacity per NEC440-33
MFS - Maximum Fuse Size per NEC440-22
Model
1113
1113
1113
1113
1113
1117
1117
1117
1117
1117
1111
1111
1111
1111
1111
1111
1111
1111
1111
1111
1113
1113
1113
1113
1113
1113
1113
1113
1113
1113
1117
1117
1117
1117
1117
1111
1111
1111
1111
1111
1111
1111
1111
1111
1111
1113
1113
1113
1113
1113
1113
1113
1113
1113
1113
1117
1117
1117
1117
1117
1117
1117
1117
1117
1117
RLA ea. LRA ea.
225
1415
196
1210
98
605
98
605
78
484
269
1560
234
1415
117
710
117
710
94
575
189
1210
164
1025
82
515
82
515
66
415
189
1210
164
1025
82
515
82
515
66
415
227
1415
196
1210
98
605
98
605
78
484
225
1415
196
1210
98
605
98
605
78
484
269
1560
234
1415
117
710
117
710
94
575
221
1210
174
1025
87
515
87
515
66
415
216
1210
164
1025
82
515
82
515
66
415
225
1415
221
1210
98
605
98
605
78
484
240
1415
205
1210
98
605
98
605
78
484
278
1560
234
1415
117
710
117
710
94
575
269
1560
234
1415
117
710
117
710
94
575
Qty.
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Model
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
1111
1111
1111
1111
1111
1113
1113
1113
1113
1113
1113
1113
1113
1113
1113
1117
1117
1117
1117
1117
1117
1117
1117
1117
1117
1111
1111
1111
1111
1111
1113
1113
1113
1113
1113
1113
1113
1113
1113
1113
1117
1117
1117
1117
1117
1113
1113
1113
1113
1113
1117
1117
1117
1117
1117
RLA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
189
164
82
82
66
225
196
98
98
78
227
196
98
98
78
269
234
117
117
94
269
234
117
117
94
221
174
87
87
66
225
196
98
98
81
225
221
98
98
78
278
234
117
117
94
225
196
98
98
78
269
234
117
117
94
LRA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
1210
1025
515
515
415
1415
1210
605
605
484
1415
1210
605
605
484
1560
1415
710
710
575
1560
1415
710
710
575
1210
1025
515
515
415
1415
1210
605
605
484
1415
1210
605
605
484
1560
1415
710
710
575
1415
1210
605
605
484
1560
1415
710
710
575
2.0 INSTALLATION (CONT.)
2.8.3
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
Electrical Data:
Units & Compressors
STANDARD LENGTH
Unit
ACDX-B Model
Standard
48
Standard
58
Standard
68
Standard
98
Standard
108
Standard
118
Standard
128
Standard
138
Standard
148
Standard
158
Standard
178
Standard
188
Standard
198
Standard
208
Notes:
(1)
(2)
Voltage
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
PH
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
HZ
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
MCA
260
229
115
115
91
317
280
141
141
110
372
328
164
164
130
472
416
209
209
165
517
456
229
229
180
570
500
251
251
197
620
548
274
274
217
676
597
299
299
237
801
649
325
325
244
796
656
329
329
263
814
801
361
361
283
910
785
385
385
303
945
817
410
410
323
969
855
429
429
339
MFS
400
350
175
175
150
500
450
225
225
175
600
500
250
250
200
600
500
250
250
225
700
600
300
300
250
700
600
300
300
250
800
700
350
350
300
800
800
400
400
300
1000
800
400
400
300
1000
800
400
400
300
1000
1000
450
450
350
1000
1000
450
450
350
1200
1000
500
500
400
1200
1000
500
500
400
Compressors
Qty.
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
MCA - Minimum Circuit Ampacity per NEC440-33
MFS - Maximum Fuse Size per NEC440-22
Model
1111
1111
1111
1111
1111
1113
1113
1113
1113
1113
1117
1117
1117
1117
1117
1111
1111
1111
1111
1111
1111
1111
1111
1111
1111
1113
1113
1113
1113
1113
1113
1113
1113
1113
1113
1117
1117
1117
1117
1117
1111
1111
1111
1111
1111
1111
1111
1111
1111
1111
1113
1113
1113
1113
1113
1113
1113
1113
1113
1113
1117
1117
1117
1117
1117
1117
1117
1117
1117
1117
RLA ea. LRA ea.
189
1210
164
1025
87
515
87
515
66
415
225
1415
196
1210
98
605
98
605
78
484
269
1560
234
1415
117
710
117
710
94
575
189
1210
164
1025
82
515
82
515
66
415
189
1210
164
1025
82
515
82
515
66
415
227
1415
196
1210
98
605
98
605
78
484
225
1415
196
1210
98
605
98
605
78
484
269
1560
234
1415
117
710
117
710
94
575
221
1210
174
1025
87
515
87
515
66
415
216
1210
164
1025
82
515
82
515
66
415
225
1415
221
1210
98
605
98
605
78
484
240
1415
205
1210
98
605
98
605
78
484
278
1560
234
1415
117
710
117
710
94
575
269
1560
234
1415
117
710
117
710
94
575
Qty.
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Model
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
1111
1111
1111
1111
1111
1113
1113
1113
1113
1113
1113
1113
1113
1113
1113
1117
1117
1117
1117
1117
1117
1117
1117
1117
1117
1111
1111
1111
1111
1111
1113
1113
1113
1113
1113
1113
1113
1113
1113
1113
1117
1117
1117
1117
1117
1113
1113
1113
1113
1113
1117
1117
1117
1117
1117
RLA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
189
164
82
82
66
225
196
98
98
78
227
196
98
98
78
269
234
117
117
94
269
234
117
117
94
221
174
87
87
66
225
196
98
98
81
225
221
98
98
78
278
234
117
117
94
225
196
98
98
78
269
234
117
117
94
LRA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
1210
1025
515
515
415
1415
1210
605
605
484
1415
1210
605
605
484
1560
1415
710
710
575
1560
1415
710
710
575
1210
1025
515
515
415
1415
1210
605
605
484
1415
1210
605
605
484
1560
1415
710
710
575
1415
1210
605
605
484
1560
1415
710
710
575
43
2.0 INSTALLATION (CONT.)
2.8.3
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
Electrical Data:
Units & Compressors
EXTENDED LENGTH
Unit
ACDX-B Model
Extended
48
Extended
58
Extended
68
Extended
98
Extended
108
Extended
118
Extended
128
Extended
138
Extended
148
Extended
158
Extended
178
Extended
188
Extended
198
Extended
208
Notes:
44
(1)
(2)
Voltage
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
PH
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
HZ
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
MCA
272
240
121
121
95
328
292
147
147
114
383
340
170
170
134
484
428
215
215
170
529
468
235
235
185
582
512
257
257
201
632
559
280
280
221
688
609
305
305
241
825
672
337
337
253
820
680
341
341
271
838
825
373
373
292
934
809
397
397
312
957
829
416
416
328
981
867
435
435
344
MFS
450
400
200
200
150
500
450
225
225
175
600
500
250
250
225
600
500
250
250
225
700
600
300
300
250
800
700
350
350
250
800
700
350
350
300
800
800
400
400
300
1000
800
400
400
300
1000
800
400
400
350
1000
1000
450
450
350
1200
1000
500
500
400
1200
1000
500
500
400
1200
1000
500
500
400
Compressors
Qty.
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
MCA - Minimum Circuit Ampacity per NEC440-33
MFS - Maximum Fuse Size per NEC440-22
Model
1111
1111
1111
1111
1111
1113
1113
1113
1113
1113
1117
1117
1117
1117
1117
1111
1111
1111
1111
1111
1111
1111
1111
1111
1111
1113
1113
1113
1113
1113
1113
1113
1113
1113
1113
1117
1117
1117
1117
1117
1111
1111
1111
1111
1111
1111
1111
1111
1111
1111
1113
1113
1113
1113
1113
1113
1113
1113
1113
1113
1117
1117
1117
1117
1117
1117
1117
1117
1117
1117
RLA ea. LRA ea.
189
1210
164
1025
87
515
87
515
66
415
225
1415
196
1210
98
605
98
605
78
484
269
1560
234
1415
117
710
117
710
94
575
189
1210
164
1025
82
515
82
515
66
415
189
1210
164
1025
82
515
82
515
66
415
227
1415
196
1210
98
605
98
605
78
484
225
1415
196
1210
98
605
98
605
78
484
269
1560
234
1415
117
710
117
710
94
575
221
1210
174
1025
87
515
87
515
66
415
216
1210
164
1025
82
515
82
515
66
415
225
1415
221
1210
98
605
98
605
78
484
240
1415
205
1210
98
605
98
605
78
484
278
1560
234
1415
117
710
117
710
94
575
269
1560
234
1415
117
710
117
710
94
575
Qty.
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Model
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
1111
1111
1111
1111
1111
1113
1113
1113
1113
1113
1113
1113
1113
1113
1113
1117
1117
1117
1117
1117
1117
1117
1117
1117
1117
1111
1111
1111
1111
1111
1113
1113
1113
1113
1113
1113
1113
1113
1113
1113
1117
1117
1117
1117
1117
1113
1113
1113
1113
1113
1117
1117
1117
1117
1117
RLA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
189
164
82
82
66
225
196
98
98
78
227
196
98
98
78
269
234
117
117
94
269
234
117
117
94
221
174
87
87
66
225
196
98
98
81
225
221
98
98
78
278
234
117
117
94
225
196
98
98
78
269
234
117
117
94
LRA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
1210
1025
515
515
415
1415
1210
605
605
484
1415
1210
605
605
484
1560
1415
710
710
575
1560
1415
710
710
575
1210
1025
515
515
415
1415
1210
605
605
484
1415
1210
605
605
484
1560
1415
710
710
575
1415
1210
605
605
484
1560
1415
710
710
575
2.0 INSTALLATION (CONT.)
2.8.3
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
Electrical Data:
STANDARD
Units & Compressors
LENGTH EXTRA QUIET
Unit
ACDX-B Model
Standard
Extra Quiet
48
Standard
Extra Quiet
58
Standard
Extra Quiet
68
Standard
Extra Quiet
98
Standard
Extra Quiet
108
Standard
Extra Quiet
118
Standard
Extra Quiet
128
Standard
Extra Quiet
138
Standard
Extra Quiet
148
Standard
Extra Quiet
158
Standard
Extra Quiet
178
Standard
Extra Quiet
188
Standard
Extra Quiet
198
Standard
Extra Quiet
208
Notes:
(1)
(2)
Voltage
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
PH
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
HZ
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
MCA
257
226
N/A
113
91
313
277
N/A
139
110
368
324
N/A
162
130
468
411
N/A
206
165
513
451
N/A
226
180
564
494
N/A
248
197
614
542
N/A
271
217
669
590
N/A
296
237
793
640
N/A
321
244
788
648
N/A
325
263
806
793
N/A
357
283
902
777
N/A
380
303
936
808
N/A
405
324
959
846
N/A
424
340
MFS
400
350
N/A
175
150
500
450
N/A
225
175
600
500
N/A
250
200
600
500
N/A
250
225
700
600
N/A
300
250
700
600
N/A
300
250
800
700
N/A
350
300
800
800
N/A
400
300
1000
800
N/A
400
300
1000
800
N/A
400
300
1000
1000
N/A
450
350
1000
1000
N/A
450
350
1200
1000
N/A
500
400
1200
1000
N/A
500
400
Compressors
Qty.
1
1
N/A
1
1
1
1
N/A
1
1
1
1
N/A
1
1
1
1
N/A
1
1
1
1
N/A
1
1
1
1
N/A
1
1
1
1
N/A
1
1
1
1
N/A
1
1
2
2
N/A
2
2
2
2
N/A
2
2
2
2
N/A
2
2
2
2
N/A
2
2
2
2
N/A
2
2
2
2
N/A
2
2
MCA - Minimum Circuit Ampacity per NEC440-33
MFS - Maximum Fuse Size per NEC440-22
Model
1111
1111
N/A
1111
1111
1113
1113
N/A
1113
1113
1117
1117
N/A
1117
1117
1111
1111
N/A
1111
1111
1111
1111
N/A
1111
1111
1113
1113
N/A
1113
1113
1113
1113
N/A
1113
1113
1117
1117
N/A
1117
1117
1111
1111
N/A
1111
1111
1111
1111
N/A
1111
1111
1113
1113
N/A
1113
1113
1113
1113
N/A
1113
1113
1117
1117
N/A
1117
1117
1117
1117
N/A
1117
1117
RLA ea. LRA ea.
189
1210
164
1025
N/A
N/A
87
515
66
415
225
1415
196
1210
N/A
N/A
98
605
78
484
269
1560
234
1415
N/A
N/A
117
710
94
575
189
1210
164
1025
N/A
N/A
82
515
66
415
189
1210
164
1025
N/A
N/A
82
515
66
415
227
1415
196
1210
N/A
N/A
98
605
78
484
225
1415
196
1210
N/A
N/A
98
605
78
484
269
1560
234
1415
N/A
N/A
117
710
94
575
221
1210
174
1025
N/A
N/A
87
515
66
415
216
1210
164
1025
N/A
N/A
82
515
66
415
225
1415
221
1210
N/A
N/A
98
605
78
484
240
1415
205
1210
N/A
N/A
98
605
78
484
278
1560
234
1415
N/A
N/A
117
710
94
575
269
1560
234
1415
N/A
N/A
117
710
94
575
Qty.
NA
NA
N/A
NA
NA
NA
NA
N/A
NA
NA
NA
NA
N/A
NA
NA
1
1
N/A
1
1
1
1
N/A
1
1
1
1
N/A
1
1
1
1
N/A
1
1
1
1
N/A
1
1
1
1
N/A
1
1
1
1
N/A
1
1
1
1
N/A
1
1
1
1
N/A
1
1
1
1
N/A
1
1
1
1
N/A
1
1
Model
NA
NA
N/A
NA
NA
NA
NA
N/A
NA
NA
NA
NA
N/A
NA
NA
1111
1111
N/A
1111
1111
1113
1113
N/A
1113
1113
1113
1113
N/A
1113
1113
1117
1117
N/A
1117
1117
1117
1117
N/A
1117
1117
1111
1111
N/A
1111
1111
1113
1113
N/A
1113
1113
1113
1113
N/A
1113
1113
1117
1117
N/A
1117
1117
1113
1113
N/A
1113
1113
1117
1117
N/A
1117
1117
RLA
NA
NA
N/A
NA
NA
NA
NA
N/A
NA
NA
NA
NA
N/A
NA
NA
189
164
N/A
82
66
225
196
N/A
98
78
227
196
N/A
98
78
269
234
N/A
117
94
269
234
N/A
117
94
221
174
N/A
87
66
225
196
N/A
98
81
225
221
N/A
98
78
278
234
N/A
117
94
225
196
N/A
98
78
269
234
N/A
117
94
LRA
NA
NA
N/A
NA
NA
NA
NA
N/A
NA
NA
NA
NA
N/A
NA
NA
1210
1025
N/A
515
415
1415
1210
N/A
605
484
1415
1210
N/A
605
484
1560
1415
N/A
710
575
1560
1415
N/A
710
575
1210
1025
N/A
515
415
1415
1210
N/A
605
484
1415
1210
N/A
605
484
1560
1415
N/A
710
575
1415
1210
N/A
605
484
1560
1415
N/A
710
575
45
2.0 INSTALLATION (CONT.)
2.8.3
Electrical Data:
Units & Compressors
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
EXTENDED LENGTH EXTRA QUIET
Unit
ACDX-B Model
Extended
Extra Quiet
48
Extended
Extra Quiet
58
Extended
Extra Quiet
68
Extended
Extra Quiet
98
Extended
Extra Quiet
108
Extended
Extra Quiet
118
Extended
Extra Quiet
128
Extended
Extra Quiet
138
Extended
Extra Quiet
148
Extended
Extra Quiet
158
Extended
Extra Quiet
178
Extended
Extra Quiet
188
Extended
Extra Quiet
198
Extended
Extra Quiet
208
Notes:
46
(1)
(2)
Voltage
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
PH
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
HZ
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
MCA
268
237
N/A
119
95
324
287
N/A
144
114
379
335
N/A
168
134
478
422
N/A
211
170
523
462
N/A
232
185
574
505
N/A
253
201
625
552
N/A
277
221
679
601
N/A
301
241
814
661
N/A
332
253
809
669
N/A
336
271
827
814
N/A
368
292
923
798
N/A
391
312
946
818
N/A
410
328
970
856
N/A
429
344
MFS
450
400
N/A
200
150
500
450
N/A
225
175
600
500
N/A
250
225
600
500
N/A
250
225
700
600
N/A
300
250
800
700
N/A
350
250
800
700
N/A
350
300
800
800
N/A
400
300
1000
800
N/A
400
300
1000
800
N/A
400
350
1000
1000
N/A
450
350
1200
1000
N/A
500
400
1200
1000
N/A
500
400
1200
1000
N/A
500
400
Compressors
Qty.
1
1
N/A
1
1
1
1
N/A
1
1
1
1
N/A
1
1
1
1
N/A
1
1
1
1
N/A
1
1
1
1
N/A
1
1
1
1
N/A
1
1
1
1
N/A
1
1
2
2
N/A
2
2
2
2
N/A
2
2
2
2
N/A
2
2
2
2
N/A
2
2
2
2
N/A
2
2
2
2
N/A
2
2
MCA - Minimum Circuit Ampacity per NEC440-33
MFS - Maximum Fuse Size per NEC440-22
Model
1111
1111
N/A
1111
1111
1113
1113
N/A
1113
1113
1117
1117
N/A
1117
1117
1111
1111
N/A
1111
1111
1111
1111
N/A
1111
1111
1113
1113
N/A
1113
1113
1113
1113
N/A
1113
1113
1117
1117
N/A
1117
1117
1111
1111
N/A
1111
1111
1111
1111
N/A
1111
1111
1113
1113
N/A
1113
1113
1113
1113
N/A
1113
1113
1117
1117
N/A
1117
1117
1117
1117
N/A
1117
1117
RLA ea. LRA ea.
189
1210
164
1025
N/A
N/A
87
515
66
415
225
1415
196
1210
N/A
N/A
98
605
78
484
269
1560
234
1415
N/A
N/A
117
710
94
575
189
1210
164
1025
N/A
N/A
82
515
66
415
189
1210
164
1025
N/A
N/A
82
515
66
415
227
1415
196
1210
N/A
N/A
98
605
78
484
225
1415
196
1210
N/A
N/A
98
605
78
484
269
1560
234
1415
N/A
N/A
117
710
94
575
221
1210
174
1025
N/A
N/A
87
515
66
415
216
1210
164
1025
N/A
N/A
82
515
66
415
225
1415
221
1210
N/A
N/A
98
605
78
484
240
1415
205
1210
N/A
N/A
98
605
78
484
278
1560
234
1415
N/A
N/A
117
710
94
575
269
1560
234
1415
N/A
N/A
117
710
94
575
Qty.
NA
NA
N/A
NA
NA
NA
NA
N/A
NA
NA
NA
NA
N/A
NA
NA
1
1
N/A
1
1
1
1
N/A
1
1
1
1
N/A
1
1
1
1
N/A
1
1
1
1
N/A
1
1
1
1
N/A
1
1
1
1
N/A
1
1
1
1
N/A
1
1
1
1
N/A
1
1
1
1
N/A
1
1
1
1
N/A
1
1
Model
NA
NA
N/A
NA
NA
NA
NA
N/A
NA
NA
NA
NA
N/A
NA
NA
1111
1111
N/A
1111
1111
1113
1113
N/A
1113
1113
1113
1113
N/A
1113
1113
1117
1117
N/A
1117
1117
1117
1117
N/A
1117
1117
1111
1111
N/A
1111
1111
1113
1113
N/A
1113
1113
1113
1113
N/A
1113
1113
1117
1117
N/A
1117
1117
1113
1113
N/A
1113
1113
1117
1117
N/A
1117
1117
RLA
NA
NA
N/A
NA
NA
NA
NA
N/A
NA
NA
NA
NA
N/A
NA
NA
189
164
N/A
82
66
225
196
N/A
98
78
227
196
N/A
98
78
269
234
N/A
117
94
269
234
N/A
117
94
221
174
N/A
87
66
225
196
N/A
98
81
225
221
N/A
98
78
278
234
N/A
117
94
225
196
N/A
98
78
269
234
N/A
117
94
LRA
NA
NA
N/A
NA
NA
NA
NA
N/A
NA
NA
NA
NA
N/A
NA
NA
1210
1025
N/A
515
415
1415
1210
N/A
605
484
1415
1210
N/A
605
484
1560
1415
N/A
710
575
1560
1415
N/A
710
575
1210
1025
N/A
515
415
1415
1210
N/A
605
484
1415
1210
N/A
605
484
1560
1415
N/A
710
575
1415
1210
N/A
605
484
1560
1415
N/A
710
575
2.0 INSTALLATION (CONT.)
2.8.4
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
Electrical Data:
Compressor Crankcase & Cooler Heaters
ACDX-B
Model
Crankcase Heater
No.
48
1
58
1
68
1
98
2
108
2
118
2
128
2
138
2
148
3
158
3
178
3
188
3
198
3
208
Note:
3
(1)
Watts Ea.
400
400
400
400
400
400
400
400
400
400
400
400
400
400
Chiller Vessel Heater
FLA Ea.
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
Chiller
Qty.
Watts Ea.
FLA Ea.
Std.
1
420
3.7
42° Opt.
1
420
3.7
40° Opt.
1
560
4.9
3.7
Std.
1
420
42° Opt.
1
560
4.9
40° Opt.
1
560
4.9
Std.
1
560
4.9
42° Opt.
1
560
4.9
40° Opt.
1
560
4.9
Std.
2
420
3.7
42° Opt.
2
420
3.7
40° Opt.
2
560
4.9
Std.
2
560
4.9
42° Opt.
2
560
4.9
40° Opt.
2
560
4.9
Std.
2
560
4.9
42° Opt.
2
560
4.9
40° Opt.
2
560
3.7
4.9
Std.
2
560
42° Opt.
2
560
4.9
40° Opt.
2
560
3.7
Std.
2
560
4.9
42° Opt.
2
560
4.9
40° Opt.
2
560
3.7
Std.
3
420
3.7
42° Opt.
3
420
3.7
40° Opt.
3
420
3.7
Std.
3
420
3.7
42° Opt.
3
420
3.7
40° Opt.
3
420
3.7
Std.
3
420
3.7
42° Opt.
3
420
3.7
40° Opt.
3
420
3.7
3.7
Std.
3
420
42° Opt.
3
420
3.7
40° Opt.
3
420
3.7
Std.
3
420
3.7
42° Opt.
3
420
3.7
40° Opt.
3
420
3.7
Std.
3
420
3.7
42° Opt.
3
420
3.7
40° Opt.
3
420
3.7
All heaters are 115 volt, single phase.
47
2.0 INSTALLATION (CONT.)
2.8.4
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
Field Connection Terminal Blocks & Fan Data
Field
Connection
ACDX-B
MODEL
48
58
68
98
108
118
128
138
148
158
178
188
198
208
48
Volts PH
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
200
230
400
460
575
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
HZ
Terminal Block
Wire Range (1)
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
60
60
50
60
60
(1) #6 - 400MCM
(1) #6 - 400MCM
(1) #12 - 2/0
(1) #12 - 2/0
(1) #12 - 2/0
(1) #4 - 500MCM
(1) #6 - 400MCM
(1) #12 - 2/0
(1) #12 - 2/0
(1) #12 - 2/0
(1) #4 - 500MCM
(1) #4 - 500MCM
(1) #6 - 400MCM
(1) #6 - 400MCM
(1) #6 - 400MCM
(2) 1/0 - 600MCM
(2) 1/0 - 600MCM
(1) #4 - 500MCM
(1) #4 - 500MCM
(1) #4 - 500MCM
(2) 1/0 - 600MCM
(2) 1/0 - 600MCM
(1) #4 - 500MCM
(1) #4 - 500MCM
(1) #4 - 500MCM
(2) 1/0 - 600MCM
(2) 1/0 - 600MCM
(1) #4 - 500MCM
(1) #4 - 500MCM
(1) #4 - 500MCM
(2) 1/0 - 600MCM
(2) 1/0 - 600MCM
(1) #4 - 500MCM
(1) #4 - 500MCM
(1) #4 - 500MCM
(2) 1/0 - 600MCM
(2) 1/0 - 600MCM
(1) #4 - 500MCM
(1) #4 - 500MCM
(1) #4 - 500MCM
(3) 1/0 - 500 MCM
(2) 1/0 - 600 MCM
(2) 1/0 - 600 MCM
(2) 1/0 - 600 MCM
(1) #4 - 500 MCM
(3) 1/0 - 500 MCM
(2) 1/0 - 600 MCM
(2) #4 - 500 MCM
(2) #4 - 500 MCM
(1) #4 - 500 MCM
(3) 1/0 - 500 MCM
(3) 1/0 - 500 MCM
(2) #4 - 500 MCM
(2) #4 - 500 MCM
(1) #4 - 500 MCM
(3) 1/0 - 500 MCM
(3) 1/0 - 500 MCM
(2) #4 - 500 MCM
(2) #4 - 500 MCM
(1) #4 - 500 MCM
(3) 1/0 - 500 MCM
(3) 1/0 - 500 MCM
(2) #4 - 500 MCM
(2) #4 - 500 MCM
(1) #4 - 500 MCM
(3) 1/0 - 500 MCM
(3) 1/0 - 500 MCM
(2) #4 - 500 MCM
(2) #4 - 500 MCM
(2) #4 - 500 MCM
Fan Motor
Fan Quantity
Low Ambient Option
Compact
Extended
1.5 HP
1.0 HP
Option Standard Option
Qty (*)
Qty (*)
Qty (*) FLA Volts/PH/Hz Qty FLA Volts/PH/Hz
—
—
—
—
—
4(2)
4(2)
4(2)
4(2)
4(2)
4(2)
4(2)
4(2)
4(2)
4(2)
6(4)
6(4)
6(4)
6(4)
6(4)
6(4)
6(4)
6(4)
6(4)
6(4)
8(6)
8(6)
8(6)
8(6)
8(6)
8(6)
8(6)
8(6)
8(6)
8(6)
10(6)
10(6)
10(6)
10(6)
10(6)
12 (8)
12 (8)
12 (8)
12 (8)
12 (8)
12 (8)
12 (8)
12 (8)
12 (8)
12 (8)
12 (8)
12 (8)
12 (8)
12 (8)
12 (8)
12 (8)
12 (8)
12 (8)
12 (8)
12 (8)
14 (10)
14 (10)
14 (10)
14 (10)
14 (10)
14 (10)
14 (10)
14 (10)
14 (10)
14 (10)
4(2)
4(2)
4(2)
4(2)
4(2)
6(4)
6(4)
6(4)
6(4)
6(4)
6(4)
6(4)
6(4)
6(4)
6(4)
8(6)
8(6)
8(6)
8(6)
8(6)
8(6)
8(6)
8(6)
8(6)
8(6)
10(8)
10(8)
10(8)
10(8)
10(8)
10(8)
10(8)
10(8)
10(8)
10(8)
12(10)
12(10)
12(10)
12(10)
12(10)
14 (10)
14 (10)
14 (10)
14 (10)
14 (10)
14 (10)
14 (10)
14 (10)
14 (10)
14 (10)
14 (10)
14 (10)
14 (10)
14 (10)
14 (10)
14 (10)
14 (10)
14 (10)
14 (10)
14 (10)
16 (12)
16 (12)
16 (12)
16 (12)
16 (12)
16 (12)
16 (12)
16 (12)
16 (12)
16 (12)
6(4)
6(4)
6(4)
6(4)
6(4)
8(6)
8(6)
8(6)
8(6)
8(6)
8(6)
8(6)
8(6)
8(6)
8(6)
10(8)
10(8)
10(8)
10(8)
10(8)
10(8)
10(8)
10(8)
10(8)
10(8)
12(10)
12(10)
12(10)
12(10)
12(10)
12(10)
12(10)
12(10)
12(10)
12(10)
14(12)
14(12)
14(12)
14(12)
14(12)
18 (14)
18 (14)
18 (14)
18 (14)
18 (14)
18 (14)
18 (14)
18 (14)
18 (14)
18 (14)
18 (14)
18 (14)
18 (14)
18 (14)
18 (14)
18 (14)
18 (14)
18 (14)
18 (14)
18 (14)
18 (14)
18 (14)
18 (14)
18 (14)
18 (14)
18 (14)
18 (14)
18 (14)
18 (14)
18 (14)
5.9
5.9
3.0
3.0
2.1
5.9
5.9
3.0
3.0
2.1
5.9
5.9
3.0
3.0
2.1
5.9
5.9
3.0
3.0
2.1
5.9
5.9
3.0
3.0
2.1
5.9
5.9
3.0
3.0
2.1
5.9
5.9
3.0
3.0
2.1
5.9
5.9
3.0
3.0
2.1
5.9
5.9
3.0
3.0
2.1
5.9
5.9
3.0
3.0
2.1
5.9
5.9
3.0
3.0
2.1
5.9
5.9
3.0
3.0
2.1
5.9
5.9
3.0
3.0
2.1
5.9
5.9
3.0
3.0
2.1
200/3/60
230/3/60
400/3/50
460/3/60
575/3/60
200/3/60
230/3/60
400/3/50
460/3/60
575/3/60
200/3/60
230/3/60
400/3/50
460/3/60
575/3/60
200/3/60
230/3/60
400/3/50
460/3/60
575/3/60
200/3/60
230/3/60
400/3/50
460/3/60
575/3/60
200/3/60
230/3/60
400/3/50
460/3/60
575/3/60
200/3/60
230/3/60
400/3/50
460/3/60
575/3/60
200/3/60
230/3/60
400/3/50
460/3/60
575/3/60
200/3/60
230/3/60
400/3/50
460/3/60
575/3/60
200/3/60
230/3/60
400/3/50
460/3/60
575/3/60
200/3/60
230/3/60
400/3/50
460/3/60
575/3/60
200/3/60
230/3/60
400/3/50
460/3/60
575/3/60
200/3/60
230/3/60
400/3/50
460/3/60
575/3/60
200/3/60
230/3/60
400/3/50
460/3/60
575/3/60
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
*Number in parenthesis is the number of 1.5 HP fans provided if low ambient option is selected.
4.8
4.8
2.4
2.4
2.4
4.8
4.8
2.4
2.4
2.4
4.8
4.8
2.4
2.4
2.4
4.8
4.8
2.4
2.4
2.4
4.8
4.8
2.4
2.4
2.4
4.8
4.8
2.4
2.4
2.4
4.8
4.8
2.4
2.4
2.4
4.8
4.8
2.4
2.4
2.4
4.8
4.8
2.4
2.4
2.4
4.8
4.8
2.4
2.4
2.4
4.8
4.8
2.4
2.4
2.4
4.8
4.8
2.4
2.4
2.4
4.8
4.8
2.4
2.4
2.4
4.8
4.8
2.4
2.4
2.4
200/1/60
230/1/60
400/1/60
460/1/60
575/1/60
200/1/60
230/1/60
400/1/60
460/1/60
575/1/60
200/1/60
230/1/60
400/1/60
460/1/60
575/1/60
200/1/60
230/1/60
400/1/60
460/1/60
575/1/60
200/1/60
230/1/60
400/1/60
460/1/60
575/1/60
200/1/60
230/1/60
400/1/60
460/1/60
575/1/60
200/1/60
230/1/60
400/1/60
460/1/60
575/1/60
200/1/60
230/1/60
400/1/60
460/1/60
575/1/60
200/3/60
230/3/60
400/3/50
460/3/60
460/3/60
200/3/60
230/3/60
400/3/50
460/3/60
460/3/60
200/3/60
230/3/60
400/3/50
460/3/60
460/3/60
200/3/60
230/3/60
400/3/50
460/3/60
460/3/60
200/3/60
230/3/60
400/3/50
460/3/60
460/3/60
200/3/60
230/3/60
400/3/50
460/3/60
460/3/60
Quiet Fan Motor
Option
1.0 HP
FLA
Volts/PH/HZ
5.3
5.3
N/A
2.7
2.1
5.3
5.3
N/A
2.7
2.1
5.3
5.3
N/A
2.7
2.1
5.3
5.3
N/A
2.7
2.1
5.3
5.3
N/A
2.7
2.1
5.3
5.3
N/A
2.7
2.1
5.3
5.3
N/A
2.7
2.1
5.3
5.3
N/A
2.7
2.1
5.3
5.3
N/A
2.7
2.1
5.3
5.3
N/A
2.7
2.1
5.3
5.3
N/A
2.7
2.1
5.3
5.3
N/A
2.7
2.1
5.3
5.3
N/A
2.7
2.1
5.3
5.3
N/A
2.7
2.1
200/3/60
230/3/60
N./A
460/3/60
575/3/60
200/3/60
230/3/60
N/A
460/3/60
575/3/60
200/3/60
230/3/60
N/A
460/3/60
575/3/60
200/3/60
230/3/60
N/A
460/3/60
575/3/60
200/3/60
230/3/60
N/A
460/3/60
575/3/60
200/3/60
230/3/60
N/A
460/3/60
575/3/60
200/3/60
230/3/60
N/A
460/3/60
575/3/60
200/3/60
230/3/60
N/A
460/3/60
575/3/60
200/3/60
230/3/60
N/A
460/3/60
575/3/60
200/3/60
230/3/60
N/A
460/3/60
575/3/60
200/3/60
230/3/60
N/A
460/3/60
575/3/60
200/3/60
230/3/60
N/A
460/3/60
575/3/60
200/3/60
230/3/60
N/A
460/3/60
575/3/60
200/3/60
230/3/60
N/A
460/3/60
575/3/60
Notes: (1) Copper Conductors only.
2.0 INSTALLATION (CONT.)
2.9
2.9.1
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
Refrigerant Charging
Procedure ACDX-B/AUDX-B
General Refrigerant Charging
Procedures
The ACDX-B units are charged at the factory with the
refrigerant for which they were designed. The type
and amount of refrigerant are shown on the nameplate.
The AUDX-B units have a gas holding charge of the
nitrogen type shown on the nameplate.
Prior to charging an AUDX-B split system and after all
piping has been completed, the system must be pressure
tested and the system evacuated. For the procedures
to follow, consult the latest revision of Form 4232.
Table 2.9A Refrigerant Line Capacities
Line Size, in.
5/8 OD
7/8 OD
1 1/8 OD
1 3/8 OD
1 5/8 OD
2 1/8 OD
2.9.2
R-22 Refrigerant Line Charge Lbs./100 Ft.
Liquid
Discharge
Suction
@ 90°F
@ 105° F
@ 40°F
12.0
.72
.30
24.0
1.35
.51
42.0
2.30
.87
59.0
3.50
1.33
74.0
4.96
1.88
146.0
8.61
3.26
Charge Calculation: Condensing
Unit AUDX-B
Prior to charging your AU condensing unit with field
installed lowside, you must first determine the amount
of refrigerant required for your system.
Determine the estimated amount for each circuit and
charge each circuit with this amount. To estimate
the amount of charge for one circuit?
1. Multiply the nominal capacity of the circuit by 2.5 to
obtain refrigerant charge in pounds.
2. Determine the length of the liquid line. Refer to Table
2.9A which gives the refrigerant charge for different
line sizes per 100 ft. Multiply your length per 100 ft.
by the amount shown in the table for your line size
and saturated temperature conditions.
3. Determine the length of the suction line for one
circuit. Refer to Table 2.9A. Multiply your length
per 100 ft. by the amount shown in the table for
your line size and saturated temperature conditions.
4. Consult the manufacturer of your low side to obtain
the operating charge.
2.9.3
Charging
AUDX-B
Once the estimated amount of charge required for your
system has been determined and the system is leak free,
you are ready to begin charging the system.
To charge the unit, attach a drum of refrigerant to the
backseating port of the liquid line valve. Purge the
charging line to remove air, invert the drum and open
it to the system. A set of scales should be used to
weigh the drum before and after charging to determine
the amount of refrigerant charged into the system.
After the system has been charged and the machine is
running, the system should once again be checked for
leaks to make sure that no leaks have occurred during
the handling of the equipment.
The unit, if possible, should be operated at full load
design conditions and the sight glass at the evaporator
should be checked. When the sight glass for each circuit
clears, compare the temperature of liquid leaving the
subcooler with that leaving the condenser. The
temperature differernce, subcooling, should be 15°F to
20°F.
5. Add the amount from steps 1, 2, 3, 4 to obtain an
estimated refrigerant charge per circuit.
49
3.0 OPERATION - MECHANICAL SYSTEMS
3.1
Qualified Unit Start-up Report
The unit should be started up only by a refrigeration
technician who is familiar with accepted operation
practices for refrigeration systems.
Use screw unit start-up report, Form NS4001, to record
all temperature, pressure, electrical readings and control
settings. A copy must be forwarded to Dunham-Bush,
Inc., North American Service, Harrisonburg, Virginia
before the warranty will be honored.
3.2
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
Typical ACDX-B Refrigerant Piping
ACDXB048 thru 068 are single compressor, single circuit
units.
ACDXB098 thru 138 are two compressor, two circuit
units.
ACDXB148 thru 208 are three compressor, three circuit
units.
See Figure 3.2A for typical ACDX-B packaged chiller
refrigerant piping.
See Figure 3.2B for typical AUDX-B condensing unit
piping.
NOTE: When the unit is spring mounted, care should
be taken to insure that piping is not excessively rigid.
See Section 2.6.
50
3.0 OPERATION - MECHANICAL SYSTEMS (CONT.) ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
ACDXB048-208 Typical Circuit “Packaged Chiller” Piping Diagram
DISCHARGE
CHECK VALVE
SUCT.
VALVE
(OPTION)
COMP
DISCH.
VALVE
(OPTION)
FLANGE
SUCTION
HOT GAS BYPASS OPTION
(CIRC. #1 ONLY)
ANGLE
VALVE
WATER
IN
SPECIAL INJECTION ORIFICE,
O-RING, ETC.
SOLENOID
C3
VALVE
COMPRESSOR LIQUID
INJECTION FITTINGS
STL
AND PORT KIT
CHILLER
Figure 3.2A
WATER
OUT
REGULATOR
HOT GAS
TXV
CHECK
VALVE
SIGHT
GLASS
ACCESS VALVE
SOLENOID
VALVE
EXPANSION VALVE
THERMAL (STD)
ELECTRONIC (OPT)
RELIEF VALVE
400#
SHUT OFF
VALVE
SIGHT
GLASS
LIQUID
ACCESS VALVE
SOLENOID
VALVE
SUBCOOLER
LIQUID OUT
SUBCOOLER
IN
COND.
LIQUID
VALVE
FILTER DRYER
AND CORES
IMPORTANT NOTE:
CONDENSATE
COND.
- TYPICAL PER CIRCUIT
51
3.0 OPERATION - MECHANICAL SYSTEMS (CONT.) ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
Figure 3.2B
ACDXB048-208 Schematic Piping Diagram
DISCHARGE
CHECK VALVE
SUCT.
VALVE
COMP
DISCH.
VALVE
(OPTION)
FLANGE
SUCTION
FILTER
ANGLE
VALVE
HOT GAS BYPASS OPTION
(CIRC. #1 ONLY)
SUCTION
FROM
REMOTE
EVAPORATOR
SPECIAL INJECTION ORIFICE,
O-RING, ETC.
C3
COMPRESSOR LIQUID
INJECTION FITTINGS
STL
AND PORT KIT
CHECK
VALVE
SOLENOID
VALVE
SIGHT
GLASS
REGULATOR
HOT GAS
ACCESS VALVE
SOLENOID
VALVE
RELIEF VALVE
400#
FILTER DRIER
SHUT OFF
VALVE
LIQUID
SUBCOOLER
LIQUID
LIQUID OUT
SUBCOOLER
IN
COND.
LIQUID
TO REMOTE
EVAPORATOR
IMPORTANT NOTE:
- TYPICAL PER CIRCUIT
52
CONDENSATE
COND.
3.0 OPERATION - MECHANICAL SYSTEMS (CONT.) ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
3.3
Pre-Start-Up Procedure for
ACDX-B Packaged Chillers &
AUDX-B Split Systems
The unit is ready for start-up when the following
procedures have been completed.
NOTE: Sump oil heaters should be energized a
minimum of 24 hours and the oil sump temperature
must be at a minimum of 100°F (38°C) prior to arrival
of start-up representative. This will ensure that the
oil is warm enough to vaporize any dissolved
refrigerant and that the oil is within the normal
operating temperature range.
2. Electrical connections are made and properly fused.
2. Before starting the compressor(s), check all three
phases of supply voltage, of all legs of the motor.
They must be within ± 10% of the nameplate voltage.
3. Unit has been leak tested, leaks corrected, and charge
completed.
3. Start compressor(s), check the gages and note if the
pressures are within the prescribed limits.
4. Compressor crankcase heater(s) has been energized
for a minimum of 24 hours.
4. Check the refrigerant sight glass at the TX Valve to
be sure it is free of bubbles. If not, charge as specified
per section 4.8 Charging.
1. Water piping for the cooler is installed and tested.
5. Calibrated refrigerant gages have been connected
to the suction and discharge pressure ports.
6. Turn on the chilled water pump, check direction of
rotation and adjust the water flow through the cooler
to the specified flow rate. Bleed off all entrained air.
7.Manually energize the fan starters and check the fan
rotation. Fans should pull air through the condenser
coil and discharge vertically upwards. Rotation can
be changed on 3-phase motors by interchanging only
two wires on the main terminal block.
8. Check all refrigerant valves to be sure they are open.
9. Proceed to System Start-up.
3.4
System Start-Up & Reporting
for ACDX-B Packaged Chillers
& AUDX-B Split-Systems
1. Request for Start-Up Representative ACDXB/AUDXB
Start-up service is an option for these units and is
requested when the unit is ordered. If you purchased
start-up service, then after the installation has been
completed and checked, Form 9180 must be filled
out and sent to the local Dunham-Bush
representative who sold the unit. Following receipt
of this signed form, a representative will be sent to
the customer. The purchaser should have competent
service and operating personnel in attendance to
assist in the work involved, and also to be trained in
the operation and maintenance of this unit.
5. Shut the compressor down and check the compressor
crankcase sight glass for oil level. Oil level must be
maintained at or below the sight glass prior to
package start-up. Due to refrigerant solubility in oil,
the level may rise over the sight glass prior to package
start-up. This means the oil may be in the internal
cavities of the compressor causing unacceptable high
hydraulic loads or “liquid stress”. Oil may have to be
drained out. Refer to page 56, section 3.6.1.
6. Restart the compressor. After an hour of operation
the expansion valve superheat setting should be
checked, it should be between 9° and 12°F at full
load design conditions. In some instances, it will be
necessary to lower the superheat setting to ensure
proper distribution. Turn the TX valve adjustment
stem clockwise to increase the superheat setting and
counterclockwise to decrease the setting. Be sure
and allow ample time between each adjustment for
the system to rebalance.
7. The electrical control settings should be checked and,
if necessary, reset to those settings indicated on the
wiring diagram. Safety controls are factory set and
must be maintained at settings indicated on the
wiring diagram.
8. The temperatures of the chilled water both in and
out, should be checked to insure the unit is operating
within the desired temperatures.
The representative will inspect the installation to
determine whether it meets Dunham-Bush, Inc.
requirements, perform the initial start-up of the
installation, determine whether it is in satisfactory
operating condition, and instruct specified customer
personnel in its operation and maintenance for the
length of time specified in the purchase contract.
53
3.0 OPERATION - MECHANICAL SYSTEMS (CONT.) ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
3.5
System Flow Rate ACDX-B
The quantity of chilled water being circulated can be
estimated by determining the water pressure drop
through the cooler and reading GPM from the
appropriate pressure drop curve, Table 3.5A.
An alternate method of determining GPM is to measure
pressure difference from pump inlet to outlet and read
GPM from pump curve.
Water flow rate must not vary more than ± 10% from
design flow rate.
Table 3.5A
Unit
Model Size
048
058
068
098
108
118
128
138
148
158
178
188
198
208
Cooler Curve Legend for Table 3.5B
Std CH1
CH2 42 F(CLR)
CH3 40 F(CLR)
2
2
1
2
3
3
3
3
3
4
4
4
4
4
4
5
5
6
7
7
6
7
7
6
10
10
7
10
10
8
10
10
8
10
10
8
9
9
9
9
9
9
NOTES:
1. A constant water flow rate is required with a
minimum of 3 gallons per ton (3.25 L/kW) water loop
volume increasing up to 10 gallons per ton (10.8 L/
kW) for process, low load applications with small
temperature ranges and/or vastly fluctuating load
conditions.
2. AUDX-B split system chillers use the same coolers as
the ACDX-B packaged chillers.
3. AUDX-B split-system remote cooler modules are
supplied insulated with the refrigeration specialty
parts all piped and wired.
54
3.0 OPERATION - MECHANICAL SYSTEMS (CONT.) ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
Figure 3.5B
Water Side Pressure Drop
FEET
OF
WATER
50
KPa
150
120
40
90
30
60
20
45
15
30
10
24
8
18
6
15
5
12
4
9
3
GPM
L/S
1
80
3.8
100
6.3
150
9.5
2
200
12.6
300
18.9
3
4 5
400
25.2
6
7
9
8
600
37.8
10
800 1000
50.5 63.1
WATER FLOW RATE
METRIC S.I. UNITS
ENGLISH I.P. UNITS
Cooler Model
Curve No. Minimum GPM
Maximum GPM
Minimum Lit./Sec.
Maximum Lit./Sec.
CHS013601A
1
81
220
5.11
13.88
CHS011601B
2
86
304
5.43
19.18
CHS013601B
3
101
407
6.37
25.68
145
417
9.15
26.31
140
428
8.83
27.76
159
443
10.03
27.95
EXD16112J11DVR0
EXD14102J09DVR0
4
EXD16122J11DVR0
EXD16122J09DVR0
5
191
536
12.05
33.82
EXD18122J11DVR0
6
177
604
11.17
38.11
236
677
14.89
42.71
183
600
11.55
37.85
EXD16122J07DVR0
7
EXT20122J11DVR0
EXT20122J09DVR0
8
220
738
13.88
46.56
EXT20122J07DVR0
9
298
881
18.80
55.58
EXT18122J07DVR0
10
267
1030
16.85
64.98
Refer to Table for Minimum GPM
55
3.0 OPERATION - MECHANICAL SYSTEMS (CONT.) ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
3.6
Compressor Lubrication
3.6.1 Oil Level
The oil level in the compressor(s) should be checked
periodically, with the compressor stopped and the oil sump
temperature at least 20°F above refrigerant saturated
discharge temperature. Stage the unit down until all
compressors are off and check the compressor crankcase sight
glass for oil level. The level should be just at the sight glass
or slightly below. It should never read over 1/2 of the sight
glass.
Oil Sight Glass Interpretation - Oil level reading over 1/2 of
the sight glass on the compressor MUST BE AVOIDED. During
the off cycle, depending on the amount, the oil will fill the
rotor lobes, discharge manifold and motor cavities subjecting
the compressor to unacceptably high hydraulic loads during
start-up which can damage the compressor. If the oil is above
the sight glass, drain it to the bottom of the sight glass before
starting the compressor. If the oil level is above the sight
glass during operation, drain oil from the compressor down
to the bottom of the sight glass.
The compressor is protected against oil failure by means of
an internal float switch. Therefore, operation of the
compressor with oil levels below the sight glass is perfectly
acceptable and in some cases, desirable. If there is no trip
on oil failure, do not be concerned and do not add any oil to
compressor.
If the oil sight glass level is 1/3 or less, you can assume that
the level is actually below the sight glass. With the level
below the sight glass, a small amount of oil will sit in the
back of the glass, hence giving a false indication.
3.6.2
Recommended Oil
The unit is factory-charged with Dunham-Bush Karlube #2
oil for R-22 refrigerant applications. It is suggested that a
gallon or more of Karlube #2 oil be obtained and kept on
hand at the job site. Consult factory for oil selection when
refrigerants other than R-22 are used in the ACDX/AUDX
machine.
3.6.3 Oil Analysis
It is recommended that an oil sample be taken from each
compressor and submitted for laboratory analysis. DunhamBush offers this service in its Oil Kare Program. This analysis
should be done at the beginning and end of each operating
season, or every six months if the unit is used year round. Oil
should be changed if analysis indicates acids, moisture,
contaminants or metals exceeding normal levels.
3.6.4 Procedure For Adding/Changing Oil
Adding oil should not be necessary unless due to loss of oil
thru system leaks or unless oil is lost during service procedures.
Oil is added thru the oil drain/fill valve near the bottom of
the compressor housing using an appropriate pump and hose
following EPA guide lines. Keep in mind that the oil sump is
at discharge pressure and this pressure must be overcome to
add oil.
When changing compressor oil, follow EPA procedures,
initially add only as much oil as was removed until system
operation is checked.
56
3.6.5
Compressor Repairs (Internal)
Contact factory or an Authorized DB Service Agency if a
compressor malfunction is suspected.
3.6.6.
Compressor Repairs (External)
Proper operation of unloaded start, loading, and unloading
is controlled by solenoid valves. Any of these solenoid valves
may be repaired or replaced in the field, as required. Also
the compressor crankcase heater may be replaced.
3.7
Hydraulic Capacity Control
System
Each compressor has a hydraulic control system to position
the capacity control slide valve, thereby regulating compressor
capacity. It is composed of a normally closed solenoid valve
(A), a normally open solenoid valve (B), an internal pressure
regulating valve, a loading rate control valve (C), and an
unloading rate control valve (D).
With valves A and B both energized (A open, B closed) during
normal compressor operation, high pressure oil is directed
to the slide valve. This pressure acts on the surface of the
slide valve piston creating a force which is sufficient to
overcome the opposing spring force and to move the valve
in the direction of increasing capacity. When the compressor
is given a "hold" command, valve A is de-energized (closed)
and slide valve movement is halted. The internal pressure
regulating valve allows oil to bleed from the slide valve
chamber during the hold condition. If valve B is then deenergized (open), the high pressure oil acting on the slide
valve will be vented to suction, and the pressure in the slide
valve chamber will be reduced. The slide valve spring will
now move the piston back toward the minimum capacity
position.
The rates of loading and unloading are regulated by load
rate needle valves C4 and C5 respectively. The proper time
for total slide valve travel (loading or unloading) is 40 + 10
seconds. Load and unload rates will be slower when the
compressor is cool and at low head than when hot and at
high head. To adjust load or unload rate, remove the socket
head O ring plugs to reach the needle valves. To decrease
rate, turn needle valve clockwise.
See table for a summary of solenoid valve operation vs. slide
valve operation.
SLIDE VALVE POSITION
UNLOADING
SOLENOID VALVE
A
(NORMALLY CLOSED)
SOLENOID VALVE
B
(NORMALLY OPEN)
UNLOADING
HOLD
CLOSED
(DE-ENERGIZED)
CLOSED
OPEN
(ENERGIZED) (DE-ENERGIZED)
CLOSED
(DE-ENERGIZED)
CLOSED
(ENERGIZED)
CLOSED
(ENERGIZED)
3.0 OPERATION - MECHANICAL SYSTEMS (CONT.) ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
SUCTION
Hydraulic Capacity Control
System (cont.)
TERMINAL BO
3.7
DISCHARGE
NORMALLY OPEN
UNLOADING SOLENOID `B’
3.7.2 Adjusting Rate of Slide Valve
Travel
The proper rate of slide valve travel, from fully loaded to
fully unloaded, or vice versa is 40 seconds, plus or minus 20
seconds, and is controlled by independent needle valves near
each solenoid valve respectively.
SOLENOID
B
Normally Open
TERMINAL BOX
UNLOADING RATE
CONTROL VALVE `C5’
External Adjustment
Needle Valve (C5)
Controls Unload Rate
External Suction
Pressure Tap. 1/4 Flr.
A
SCHRADER VALVE
A
A
A
SUCTION
SOLENOID
A
Normally Closed
NORMALLY CLOSED
LOADING SOLENOID `A’
LOADING RATE
CONTROL VALVE `C4’
This information describes the operation, adjustment
and troubleshooting steps for compressors
manufactured with the pad mounted unloader.
Familiarize yourself with all of the data contained in
this section as it details some things that should not be
done.
3.7.1
Operation of the Unloader
A. Loading: solenoids A & B are energized. High pressure
oil from internal strainer flows to load piston. Loading
rate controlled by load rate needle valve (C4).
B. Unloading: solenoids A & B are de-energized. Oil flows
from load piston to suction. Unloading rate controlled
by unload rate needle valve (C5).
C. Hold: solenoid A de-energized, solenoid B energized. Oil
is captured in load cylinder at a pressure approximately
40 to 90 PSI (279.5 - 620.7 kPa), above suction pressure.
Suction Filter
Suction
Gas
Filter
Vertical Screw Compressor
Ext. Adj. Needle Valve
Controls Unload Rate (C5)
C5
Connection
B
Relief Valve
and Strainer
Load
Unload
Solenoid ‘B’
Normally Open
(Unload)
3-Way
Solenoid Valve
External Adjustment
Needle Valve (C4)
Controls Load Rate
NOTES:
1. Make adjustments at design conditions only.
2. To reach the needle valves, remove the plugs (C4, C5).
3. The needle valves are sealed internally so as to minimize
leakage.
4. A safety stop prevents removal of the needle valves.
3.7.3
Field Checks
The Schrader valve pressure tap on the pad unloader can be
used to read various pressures:
A. Suction pressure (downstream of suction filter). Set the
controller in the “manual” mode. The suction pressure at
this point should never be more than 5-7 PSIG (34.5 48.3 kPa), below the suction pressure read at the suction
service valve. A greater pressure difference can indicate a
dirty suction filter.
B. Load cylinder pressure. With the controller in the “manual”
mode, close the C5 needle valve and then disconnect a
wire to solenoid B. At a part or full load condition, the
pressure should equalize to approximately 40-90 PSIG
(275.9 - 620.7 kPa) above suction pressure. At a fully
unloaded condition, this pressure can be equal to suction
pressure. To watch the effect of relief valve performance,
switch controller to “manual-load” briefly, and back to
“manual-hold”. Pressure should rise and then fall back to
approximately 40-90 PSIG (275.9 - 620.7 kPa) above suction. Reconnect wire to solenoid B.
C2 Connection
Schrader Valve
A
Load Piston
C4 Connection
Oil Strainer
Solenoid ‘A’
Normally Closed
(load)
Ext. Adj. Needle Valve
Controls Unload Rate (C4)
NOTE: Drawing may not represent actual construction
57
3.0 OPERATION - MECHANICAL SYSTEMS (CONT.) ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
3.7.4
Troubleshoting
Symptom
A.
B.
Compressor
will not load
Compressor
will not
unload
1. Low compressor ,P. Discharge
pressure must be approximately
50-60 PSI (344.9 - 413.8 kPa),
above suction pressure to allow
loading.
2. C4 needle valve out of adjustment. Adjust per section II.
3. Load solenoid malfunction.
Check valve for power and
magnetic field.
4. Unload solenoid or internal relief valve leaking by. Close C5
needle valve and observe load
cylinder pressure per section III.
1. C5 needle valve out of adjustment.
Adjust per section II.
2. Unload solenoid malfunction.
Check valve for power and
magnetic field.
3. Load solenoid valve leaking by.
Close C5 needle valve and
observe load cylinder pressure
per section III.
4. Internal leak into load cylinder.
Check cyinder pressure per
section III.
C.
Compressor
will not hold
a part load
condition
1.
2.
If trend is toward loading,
check for leaking load solenoid
valve by closing C4 needle
valve.
If loading creep
continues, an internal leak into
the load cylinder exists.
(Consult D/B North American
Service.)
If trend is toward unloading,
check for leaking unload
solenoid or relief valve by
closing C5 needle vale. Clean/
replace as required.
NOTES:
If the pad unloader is removed from the compressor:
1. Ensure all pressure is relieved from the compressor
enclosure prior to loosening any bolts.
2. Handle the assembly with care as not to bend the
solenoid enclosure tubes or mar any machined surface.
3. Clean all ports in the pad with fine wire.
4. Be sure to re-assemble the gaskets in the proper
orientation (see sketch for different variations of gasket).
5. Torque bolts to 12 foot/pounds.
6. Re-wire the solenoids per the wiring diagram.
Top of Enclosure
Holes for
Screws “A”
“C5” Needle Valve
Some Details Omitted
For Clarity
“C4” Needle Valve
3.7.5
General Notes
1. Unless specifically instructed by the North American Service and Compressor Engineering Departments, by no
means is an external pressure to be applied to the load
cylinder (E.G., through the Schrader fitting) at any time.
Load cylinder pressure should never be greater than enclosure pressure. This can cause irreversible internal seal
damage in newer compressors.
58
2. If troubleshooting procedures do not lead to a resolution
of a problem, consult Dunham-Bush North American Service.
3.0 OPERATION - MECHANICAL SYSTEMS (CONT.) ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
3.8
3.8.1
Low Ambient Operation
Condenser Head Pressure Control
Outdoor air-cooled units required by application to start and
run at ambients below normal summer conditions require
some means to keep the condensing pressure high enough
to insure adequate expansion valve feed to the cooler to
prevent low side pressure trips, particularly during cold starts.
Two types of condenser fan control are available to allow the
units to operate at the ambients and loads indicated.
3.8.2
Standard Factory Installed Fan Cycling
This commonly applied scheme cycles condenser fans “on”
and “off” in response to head pressure to maintain the head
pressure within an acceptable range for proper system
operation. This methods will permit starting and sustained
running 20°F (-6.66°C) ambient.
The minimum ambient shown above reflect the performance
of the condenser surface exposed to the operational fan(s)
as well as that portion of the surface rejecting heat by natural
convection with related fans “off”. To further assist low
ambient starts, all fans are held “off” until the head pressure
reaches 190 psig (310 kPa). This alone cannot insure sustained
operation if the system load is not high enough to produce
the minimal pressures required.
3.8.3
Optional Variable Speed Fan Control
This scheme utilizes fan cycling but also adds speed control
to the lead fan or fans. This feature not only serves to stabilize
the head pressure between normal fan staging but also allows
for virtually “no fan” operation down to 0°F (-17.77°C)
3.9
ambient, providing wind velocity is less than 5 MPH, and the
unit capacity requirements are a minimum of 50%. Electronic
expanion valve(s) may also be provided with this option, and
are required if the ambient temperature may reach as low as
-20°F.
3.8.4
Cooler Freeze Protection - Low Ambient
Cooler freeze protection is a serious concern with outdoor
packaged chillers and the responsibility for the proper
implementation, monitoring and maintenance of both factory
and field installed protective devices and procedures lies solely
with the customer. The ACDX coolers are heat tape wrapped
which utilize built-in 38°F (3.33°C) thermostats and are
insulated for protection down to about -20°F (-28.9°C).
However, this protection disappears if power fails, power to
the heater circuit is switched off or left off by mistake, or the
heater tapes burn out. In this regard, it is advisable to read
and log the heater circuit amp draw at the first low ambient
shut-down opportunity for future service and monitoring
reference. In light of all the above, the following should be
considered:
1. Drain the cooler and water piping thoroughly for long
term shut-down at ambients below 32°F (0°C). Drain fittings are provided on the cooler for this purpose.
2. Add ethylene glycol to the chilled water system at a percent concentration suitable for a freeze point at least 10°F
(5°C) below the minimum expected ambient.
3. The field installed cooler heater disconnect switch must
be permanently tagged “DO NOT OPEN THIS SWITCH”.
4. Make absolutely sure that responsible people know exactly how to react to general power failures.
Fan Location & Staging
Cir. 1
1
2
3
4
6 Fan Unit
1 Circuit
Cir. 1
1
2
3
4
5
6
6 Fan Unit
2 Circuit
Cir. 1
Cir. 2
1
2
3
4
5
6
8 Fan Unit
1 Circuit
Cir. 1
1
2
3
4
5
6
7
8
Cir. 1
Cir. 2
1
2
3
4
5
6
7
8
Cir. 1
Cir. 2
1
2
3
4
5
6
7
8
9
10
Cir. 1
Cir. 2
1
2
3
4
5
6
7
8
9
10
11
12
Cir. 1
Cir. 2
1
2
3
4
5
6
7
8
Cir. 3
9
10
11
12
14 Fan Unit
2 Circuit
Cir. 1
Cir. 2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
14 Fan Unit
3 Circuit
Cir. 1
Cir. 2
1
2
3
4
5
6
7
8
9
10
Cir. 3
11
12
13
14
16 Fan Unit
3 Circuit
Cir. 1
Cir. 2
1
2
3
4
5
6
7
8
9
10
Cir. 3
11
12
13
14
15
16
18 Fan Unit
3 Circuit
Cir. 1
Cir. 2
1
2
3
4
5
6
7
8
9
10
11
12
Cir. 3
13
14
15
16
8 Fan Unit
2 Circuit
10 Fan Unit
2 Circuit
12 Fan Unit
2 Circuit
12 Fan Unit
3 Circuit
Control Panel End of Unit
4 Fan Unit
1 Circuit
NOTES:
1. Odd fans are LH and circuit 1 on two-circuits.
2. Maximum 4 Fan Stages per circuit.
3. See wiring diagram for Fan Stage Presure Settings.
17
18
59
3.0 OPERATION - MECHANICAL SYSTEMS (CONT.) ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
3.10 Fan Cycling Sequence Chart
Number Of Fans Per Step
No.
Fans
4
6
6
8
8
10
12
14
16
18
Refrig.
Circuit
1 LH/RH
1 LH/RH
1 LH
2 RH
1 LH/RH
1 LH
2 RH
1 LH
2 RH
1 LH
2 RH
3 LH/RH
1 LH
2 RH
3 LH/RH
1 LH
2 RH
3 LH/RH
1 LH
2 RH
3 LH/RH
1
1,2
1,2
1
2
1,2
1
2
1
2
1
2
9,10
1
2
11,12
1
2
11,12
1
2
13,14
2
3,4
3,4
3
4
3,4
3
4
3
4
3
4
11,12
3
4
13,14
3
4
13,14
3
4
15,16
3
4
5,6
5
6
5,6
5
6
5
6
5
6
7,8
7
8
7,9
8,10
7
8
5
6
7,9
8,10
5
6
15,16
5,7
6,8
17,18
7,9
8,10
9,11
10,12
NOTE: Refer to the unit wiring diagram for fan cycling pressure settings.
4.0 OPERATION - MICROCOMPUTER CONTROL
4.1
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
Electrical Controls Description
ACDX-B/AUDX-B
CB
Power Switch (115V Control Circuit)
This switch energizes the control circuit and must
be left on (except for temporary control circuit service
work) to allow normal on cycle operation.
Compressor sump heaters are connected before this
switch and are not affected by switch position.
Circuit Breaker
The circuit breaker provides branch-circuit shortcircuit protection for the compressors.
M2OL
S2
S3
S4
Compressor Switch
This switch disconnects power from the
corrresponding compressor control circuit. This
switch is also used to reset the motor temperature
protector 1TAS).
Compressor Overload (Manual Reset)
A solid state overload relay is used for overload
protection. If the current draw of the compressor
exceeds the trip point of the overload, the
compressor will be shut down. This will generate a
NO RUN alarm on the microcomputer.
AM
FLS
Flow Switch
For ACDX-B/AUDX-B units, a chilled water flow switch
must be installed at the job site to ensure chilled
water flow while the package is in operation. Wire
the flow switch to the terminals shown on the wiring
diagram.
Ammeter (Option)
The ammeter, along with the ammeter transfer
switch, allows monitoring of the total 3 phase
current being supplied to the unit. The switch selects
which phase current is shown on the meter.
10TR
Step-Start Timer
This timer is used for incremental start delay between
start and run Delta motor configurations. It is 1
second.
M
Contactor (Compressor and Fan Motor)
The contactor, operated by the control circuit,
provides power individually to the compressor and
fan motors. Two contactors are used for doubledelta start of the compressors. These devices are
amp rated to handle both rated load amps and
locked rotor amps.
Refer to pages 71-79 for wiring diagrams.
S1
CWP
60
Chilled Water Pump Interlock
For ACDX-B/AUDX-B units, it is recommended that
an interlock between the chilled water pump and
the package be provided to prevent the unit from
operating with the chilled water pump off. Connect
the interlock to the terminals shown on the diagram.
4.0 OPERATION - MICROCOMPUTER CONTROL (CONT.)
4.1
Electrical Controls Description
ACDX-B/AUDX-B (cont.)
CR
Relays (Miscellaneous Control)
These relays provide the necessary circuit logic for
lock-in, lock-out and transfer functions.
HTR
Crankcase Heater
Energized continuously as long as control circuit is
energized and compressor is off. This heater
maintains crankcase temperature above the system
temperature during the compressor off cycle,
preventing refrigerant migration in to the crankcase
and consequent compressor damage.
Chiller Heater and Thermostat (ACDX-B only)
The chiller heater with integral thermostat is
powered by a separate customer supplied 115VAC
source. The heater turns on when the shell
temperature drops to 38°F (3.33°C). This helps
prevent a chiller freeze-up under low ambient
conditions.
SOL
Liquid Line Valve
Closes when the compressor(s) is off to prevent any
liquid refrigerant from accumulating in the cooler
during the off cycle.
CO
Convenience Outlet (Optional)
The convenience outlet is a 15 amp, 115 volt duplex
outlet. This allows easy access to 115 VAC power
by service personnel for small electrical tools.
1TAS
Motor Overload Protection
Compressor overload protection is provided by a
solid state device (1TAS) that monitors internal motor
temperature. If the maximum motor temperature
is exceeded, the compressor will shutdown. To reset
1TAS, open the control switch for 5 seconds. The
microcomputer must also be reset to clear the NoRun alarm.
UVR
Undervoltage Relay
Protects the unit from the following electric supply
malfunctions: under-voltage, phase reversal and
single phasing. If the UVR trips, a control relay will
de-energize and open the control circuit. A LED light,
located on the UVR, will indicate a normal power
supply.
SCR
Fan Speed Control (Optional)
The fan speed control varies the speed of the fan,
depending on head pressure. With a discharge
pressure of 140 psig (965.6 kPa) or below, the fan is
at minimum speed. As discharge pressure rises, the
fan speed is increased proportionally until it reaches
full speed at 200 psig (1379.4 kPa). See fan cycling
control section.
FS
Oil Float Switch
This switch opens when oil level in the sump of a
compressor drops below a predetermined level.
VM
Voltmeter (Optional)
The voltmeter along with the voltmeter transfer
switch allows monitoring of the 3 phase voltages.
The switch selects which phase voltage is shown on
the meter.
ETM
Elapsed Time Meter (Optional)
This meter (one per compressor) is an analog type,
and it measures elapsed run time on the compressor.
SC
Compressor Start Counter (Optional)
This meter (one per compressor) is an analog type
which measures the number of compressor starts.
NOTE:
Refer to the unit wiring diagram for operation and
safety control settings.
Load/Unload Solenoid Valves
The load/unload solenoid valves modulate the
compressor slide valve during normal operation in
response to commands from the microcomputer
controller.
Liquid Injection Solenoid
The liquid injection turns on when discharge
temperature exceeds the “close” setting of 8TAS
[typically 160°F (71.1°C)]. It turns off when
discharge temperature falls below the “open” setting
of 8TAS [typically 150°F (65.5°C)]. This cools the
compressor motor.
Door Latch Solenoid (Optional)
The door latch solenoids are used to hold the control
and power panel doors closed when power is
applied to the unit. The control panel door solenoid
can be temporarily de-energized with a key to allow
opening of the door. This allows access to the microcomputer keyboard/ display.
Hot Gas Bypass Solenoid (Optional)
This solenoid is energized under light load
conditions. The hot gas reduces machine capacity
to help prevent short cycling of a compressor.
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
61
4.0 OPERATION - MICROCOMPUTER CONTROL (CONT.)
4.2
Typical Control Sequence of
Operation:
Models ACDXB048-138
Refer to pages 71-79 for wiring diagrams.
The following sequence of operation for two compressor unit
is typical of all ACDX-B Models. Refer to the wiring diagram
furnished with the unit for specific information.
(
) Control Identification Symbol
(
) Circuit Line Number
Important Note!
With all the control circuit switches (S1-S3) in the “off”
position, Terminals #1 and #2 must have 115 volts supplied
for a minimum of 24 hours to energize the compressor
crankcase heaters (HTR).
Preliminary Sequence - Close the main power disconnect
switch. Verify proper voltage. Check to see that the indicating
light on the under voltage relay (UVR) is lit. This light must
be on to indicate proper phase rotation for the
compressors. If the light is not on, disconnect the main
power and reverse any two phase legs at the Main Incoming
Power Terminal Block. (WARNING! DO NOT REVERSE THE
LEADS ON THE PHASE LOSS MONITOR FOR THIS WILL ALLOW
THE COMPRESSORS TO RUN BACKWARDS, CAUSING SEVERE
DAMAGE, & WILL VOID THE COMPRESSOR WARRANTY!)
Check phase sequence using a meter before compressor start.
The crankcase heater relay contacts (1M2-1) and (2M2-1) are
closed and are supplying power to the compressor crankcase
heaters. Power must also be supplied to the chiller heaters
by the separate customer supplied 115 VAC supply. Terminal
block 5TB.
Control power is turned on by the Control Power Switch (S1).
Start up the chilled water pump. The water flow is confirmed
when the water flow switch completes the electrical circuit
across Terminals #31 and #32 on three compressor or
terminal #11 and #12 on single compressor and when chilled
water pump auxiliary (CWP) closes between #151 and #152
on three compressor or #8 and #11 on single compressor
machine.
Check to make sure unit control contacts between terminals
#10 and #33 on three compressor or terminal #8 and #13
on single compressor close when the unit needs to operate.
Set the desired leaving water temperature (e.g. 44°F - 6.66°C)
in the microcomputer setpoint 1A. See micro-computer
controller section.
Place the compressor control circuit switches (S2-S3-S4) in
the “On” position, thus energizing the balance of the control
circuit. All safety controls must be satisfied and the
microcomputer has been RESET. The system may be in a
“Time-in” mode for up to fifteen minutes before the first
compressor will start.
4.2.1
Stage-Up Sequence
Stage 1 Starting
In summary, the following conditions must be met to start a
compressor:
62
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
•
•
•
•
•
•
•
•
•
•
System voltage above undervoltage relay (UVR) setting
chilled water pump running
chilled water flow switch made
compressor circuit breakers on
customer unit control contact closed
control switch and compressor switches on
reset pressed on microcomputer keypad
power has been on the microcomputer for 15 minutes
all safety conditions satisfied
leaving chilled water temperature 2°F (1°C) or more above
setpoint
• schedule in micorcomputer set for unit operation
A compressor is started by first energizing 1M1 followed by
1M2 after 1 second if step start is activated. Otherwise, both
contactors energize together. Anti-recycle time of 15 minutes
is initiated within the computer at start.
The liquid line valve will open when the compressor starts.
As condenser pressure rises, the microcomputer will stage
on the fans according to the fan setpoints.
Stage 1 Modulation
When the compressor starts, the microcomputer monitors
amperage by means of 1CT, leaving water temperature using
1TS, and condensing pressure. These inputs are used to
control the loading and staging of the compressor. The
compressor’s loading is controlled by pulsing signals to the
load and unload solenoids.
Stages 2 and 3 Starting
If the safety conditions are satisfied for the #2 compressor,
at least 1 minute has elapsed since #1 compressor has
reached full load, and leaving water temperature remains
above the deadband; 2M1 and 2M2 will be activated by the
microcomputer, (2M2 will close after 1 second delay, if step
start is desired). #2 compressor also has a 15 minute antirecycle timer built into the microcomputer. Loading of the
#2 compressor is controlled the same as compressor #1.
For each compressor, the liquid line valve will open when the
compressor starts.
The fans will also be staged on to maintain proper condenser
pressure.
4.2.2
Shutdown Sequence
Stages 2 and 3 Shutdown
When leaving water temperature falls below setpoint minus
deadband, the compressors begin to unload. When the
operating compressor capacities fall below a pre-determined
setpoint, the last compressor is shut down. The
corresponding liquid line valve closes and the fans turn off.
When a compressor turns off, the remaining compressors
load up to maintain the leaving water temperature.
Stage 1 Shutdown
If the leaving water temperature is still lower than the
setpoint, compressor 1 unloads fully and then turns off.
Circuit #1 liquid line valve turns off and the fans turn off.
4.0 OPERATION - MICROCOMPUTER CONTROL (CONT.)
4.3
4.3.1
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
Microcomputer Controller
General Description
Your Dunham-Bush ACDX-B/AUDX-B is controlled by an NC25
microcomputer system. The computer system is composed
of a main microcomputer board, several types of input/output
(I/O) boards, and sensors. The I/O boards are connected to
the microcomputer by ribbon cables. These hardware
components are controlled by the software program in the
microcomputer. The software determines the state of the
output relays based on the input values.
There are two types of inputs to the computer system. A
digital input indicates whether or not voltage is present at
the input. This could be used to determine whether or not a
contactor is pulled in, a water flow switch is made, or the
status of other on/off devices. Another type of input is an
analog input. An analog value is one that varies continuously,
such as temperature, pressure, current, etc. An analog input
must be converted to a digital value with an analog to digital
(A/D) converter board before the computer can process the
data.
Figure 64A
The software for the computer is stored in three different
types of computer memory chips. The two EPROM chips
(Electrically Programmable Read Only Memory) store general
operating procedures (algorithms) and is the same for all
packages. The EAROM chip (Electrically Alterable Read Only
Memory) stores the program that defines the logic for a
particular unit. This software is called the data base. Both of
these chips retain their content when power is removed. The
third type of memory is battery backed RAM (Random Access
Memory) and is used for temporary storage.
Information can be retrieved from the NC25 and displayed
on a video display terminal. The RS232 communications port
is used. Refer to Form 6372 for more information.
Microcomputer Keypad
1
CONTROL
4
ALARMS
7
CLOCK
RESET
Figure 64B
The computer system outputs are relays that switch the 115
VAC control devices such as contactors and solenoids.
2
ANALOG
5
SET
8
CONFIG
+/-
3
DIGITAL
HELP
MENU
6
AUTH
9
SYSTEM
LOWER
PAGE
ENTER
Typical Microcomputer Instruction Label
019318A1 Rev. 0
63
4.0 OPERATION - MICROCOMPUTER CONTROL (CONT.)
4.3.2
B.
Microcomputer Hardware
Precautions
2.
3.
4.
5.
6.
7.
8.
TOTAL RUN TIME gives the number of hours the control
point has been on since memory clear was performed.
This records up to 65,000 hours.
TOTAL CYCLES gives the number of cycles since a memory
clear was performed. This records up to 65,000 cycles.
C. — CURRENT — — TARGET —VALUE VALUE VALUE VALUE
The values under CURRENT and TARGET give different
operating analog input values and setpoints for different
types of control points. Screw compressor control points
give current and target leaving water temperature and
percent full load capacity. Fan type control points give
the current analog value and target turn on and turn off
setpoints.
NOTE: When displaying analog sensors, the PAGE MODE
key can be pressed to display two new analog inputs
after each arrow key is pressed. Press PAGE MODE again
to return to displaying one new analog input.
Do not lay the solder side of a computer board on a
metallic surface. This may damage the battery on the
board.
Cover the computer components completely when
drilling sheet metal near the computer.
Strip wires away from microcomputer to prevent strands
from falling on components.
Do not allow the component boards to get wet.
Disconnect power to the NC25 when plugging in or
unplugging a ribbon cable connector.
Disconnect power to the NC25 when changing a chip
on the board. Check to make sure that pin 1 of chip is in
upper-left corner and that the chip is inserted fully before
reconnecting power.
Route ribbon cable and sensor wires away from control
and power wires.
Handle boards with care.
4.3.3.2
4.3.3
Operation of LCD Display NC25-4
The following instructions are for operation of the NC25-4
microcomputer with 2 x 40 character LCD display.
4.3.3.1
1.
2.
3.
4.
To Display data from the menu
Press the MENU key.
Use the up or down arrow keys to select the type of
information desired. The main menu items are:
DATE & TIME SET DIGITAL SENSORS
ALARMS CONTROL POINTS
SETPOINTS A & B AUTHORIZATION
ANALOG SENSORS
Press the ENTER key.
Use the up or down arrow keys to select the desired
data. For control points, additional data can be viewed
with the right and left arrow keys. Press the right arrow
key to sequence through the following screens:
A. LAST ON/OFF - RUN T/Y - CYC
TIME TIME TIME TIME COUNT
1.
2.
3.
1.
2.
3.
4.
5.
6.
CYC gives the number of times that the control point
cycled off since midnight. If a feedback digital input is
associated with a control point (EX: compressor) the
digitainput cycles are recorded.
64
3.
To Display Alarms
Press the MENU key.
Use the up or down arrow to select ALARMS.
Press ENTER.
The day, time, and alarm code is displayed. Alarm 1 is
the most recent alarm.
Press the down arrow to view previous alarms.
Check the data label to obtain the name of the alarm. If
the data label is not available, display the digital input
that corresponds to the alarm number. If the digital
input name is SPARE, then display the control point that
corresponds to the alarm number. EX: If alarm code 29
has occurred then display digital input 29 or control point
29 to determine the failure.
4.3.3.4
1.
2.
To Reset All Control Points to Computer
Control
Press the RESET key. The display will show RESET
ALL CPs to COM MODE? N Y
Press the right arrow key to select Y.
Press the ENTER key. The reset will not be accepted if a
lockout control point is active. Resolve the problem and
reset again.
4.3.3.3
LAST ON/OFF gives the time of day that the control last
turned on or off. The last on time is not updated if a
screw compressor is started manually.
RUN T/Y gives the accumulated time that the control point
has been on today (T) since midnight and the
accumulated run time during yesterdays(Y) 24 hour
period.
TOTAL RUN TIME = COUNT
TOTAL CYCLES = COUNT
The following precautions must be taken while working with
the microcomputer system.
1.
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
To Become Authorized
Select AUTHORIZATION on the main menu. Press ENTER.
The current status will show VIEW, press the authorization
code (64) on the number keys.
Press ENTER. The current status will change to PROG
(program) if accepted. If no keys are pressed for five
minutes, or if the Authorization screen is re-displayed,
the authorization to change setpoints is removed and
the above procedure must be repeated to log in.
4.0 OPERATION - MICROCOMPUTER CONTROL (CONT.)
4.3.3.5
1.
2.
3.
4.
5.
To Alter Setpoint Data
You must be authorized and in the PROG mode. See
section 4.3.3.4.
Select SETPOINTS A & B on the main menu. Press ENTER.
Use the up or down arrow keys to select the setpoint to
be changed. Press ENTER. A cursor will flash over the
setpoint A value.
a) If you want to change setpoint A, press in the desired
new value and press ENTER. If the new value is within
limits, it will be stored in memory. The cursor will then
move to setpoint B.
b) If you do not want to change setpoint A, press ENTER.
Repeat Step 4 for Setpoint B.
4.3.3.6
To Calibrate Temperature and Pressure
Sensors
NOTE:
Pressure calibration should only be done by a
qualified refrigeration technician. Calibrate amps
with potentiometer on filter board.
NOTE:
For units with SI display option, the critical
temperature and pressure calibration values are
stored in the setpoints corresponding to the sensor
names or numbers.
1.
2.
3.
4.
5.
6.
7.
8.
You must be authorized and in the PROG mode. See
Section 4.3.3.4.
Display the analog sensor to be calibrated on the top
line of the display.
Press ENTER to show ZERO CALIBRATION value.
Use an accurate gauge to measure the analog value when
it is stable and near design conditions.
Determine the revised zero calibration required as
follows: Meter Reading - AI Display + Zero Calibration
= New Zero Calibration. The new zero calibration must
be rounded to the nearest whole number.
Press ENTER to place the cursor on the zero calibration
value.
Enter the new value from Step 5. Negative values are
entered by pressing LOWER FUNCTION +/- before the
number.
Press ENTER to store the revised zero calibration.
For example, if a suction pressure gauge shows 58 psig
and the computer displays 60.3 psig with a zero
calibration of -1, then new calibration would be 58 60.3 + (-1) = -3.3 (-3). So the zero calibration should be
changed to -3.
5.
Press ENTER to continue. The last ENTER will store the
new date and time.
WARNING: Setting the clock will cause a system reset. The
entire unit will shut down and start over again. If the change
was started inadvertently, press MENU key before completing
the change.
4.3.3.8
1.
2.
4.3.3.9
3.
4.
To Revise Unit Schedule of Operation
(Optional)
If a seven day time schedule of unit operation is desired, the
internal real time clock of the microcomputer can be used.
When the SCHEDULE control point is ON, the unit is allowed
to operate. The following procedure is used to modify the
operating schedule.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
To Set Date and Time
You must be authorized. See Section 4.3.3.4.
Select DATE & TIME SET on the main menu. Press ENTER
to display current date and time.
Press ENTER key to move cursor to each date/time item.
As each item flashes, use the number keys to enter revised
data if necessary. The day of week, SUNday through
SATurday, is selected by number keys 1 through 7,
respectively.
To Display Data without Accessing Menu
1. Press LOWER FUNCTION.
2. Press function desired (blue sub-script)
3. Press item number to be displayed.
4. Press ENTER.
EX: To display analog input #5, press LOWER FUNCTION,
ANALOG INPUT, 5, ENTER.
12.
4.3.3.7
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
13.
14.
Perform the authorization procedure (See 3.4).
Press MENU key.
Use Up and Down to select CONTROL POINTS.
Press ENTER.
Use Up and Down to select SCHEDULE control point.
Use to display the first schedule. The standard display
screen would show:
CP 17 SCHEDULE GRP:1 SCH:1 0000 2400 DAYS: *** ALL
DAYS ***
This indicates that control point 17 named SCHEDULE is
controlled by schedule group (GRP) #1. The first schedule
(SCH:1) turns on at 0000 hours and off at 2400 hours
(military time) every day of the week. Thus it is on all the
time.
To change this schedule, press ENTER. The cursor will
flash over the turn-on time. To move to the next schedule,
press the right arrow key.
Use the number keys (0-9) to enter the revised turn-on
time using military format.
Press ENTER. The cursor will move over to the turn-off
time.
Use the number keys to enter the turn-off time in military
format.
Press ENTER. The cursor will move to DAYS during which
this schedule is active.
To change the days for this schedule, press one or more
of the following number keys:
0 - Clear all current days;
1 - Sunday(S);
2 - Monday(M);
3 - Tuesday(T);
4 - Wednesday(W);
5 - Thursday(R);
6 - Friday(F);
7 - Saturday(A);
8 - *** ALL DAYS***
Press ENTER. The revised schedule number is now stored.
To add another schedule, press the right arrow key and
repeat steps 7-13.
65
4.0 OPERATION - MICROCOMPUTER CONTROL (CONT.)
15. To delete a schedule, clear all of the days by pressing 0
at Step 12.
The schedule group turns on when any of the individual
schedules turns on. The turn-on time does not have to
be earlier than the turn off time. Schedules turn on by
time and day, but turn off by time alone. For example, a
schedule from 1900 to 0700 Saturdays would turn on at
7:00 PM Saturday (time and day) and turn off at 7:00
AM Sunday (time only).
Example: If a unit is to operate at all times except
between the hours of 1:00 AM and 6:00 AM, the
following schedule would be entered:
CP 17 SCHEDULE GRP:1 SCH:1 0600 0100 DAYS:
*** ALL DAYS ***
Another example: A typical building may require cooling
from 6:00 AM to 7:00 PM Monday - Friday and from
7:00 AM -3:00 PM on Saturdays. The schedules would
be entered as follows:
CP 17 SCHEDULE GRP:1 SCH:1 0600 1900 DAYS:
MTWRF
CP 17 SCHEDULE GRP:1 SCH:2 0700 1500 DAYS: A
4.4
ACDX-B/AUDX-B Package
Control
In order to start a unit, the following conditions must be
met:
•
•
•
•
•
•
•
•
chilled water pump running
chilled water flow switch made
customer control contact closed
control switch and compressor switch on
main unit power on
all safety conditions satisfied
reset pressed on microcomputer keypad
the compressor has not started within the last 15
minutes
• leaving chilled water temperature 2°F or more above
set point
The NC25 computer system performs the following functions
on small screw compressor packages :
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
66
Capacity control of compressors
Staging of compressors
Compressor current limiting
Ramp control
Manual lead/lag
Compressor start delay
Power loss reset
Anti-recycle timing
Low pressure safety
High pressure safety
Freeze safety
High Oil Temp Safety
Alarm output
Fan control
Chilled water reset and customer control interlock
Hot Gas Bypass option control
Compressor power control (No-stop alarm)
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
18. Sensor alarm shutdown
19. Compressor shutdown indication (No-run alarm)
20. Fast Unload Solenoid Control (ACDX040-185B)
21. High Motor temperature safety
22. Low chiller flow alarm
23. High discharge pressure unload
24. Low suction pressure unload
25. Low oil level alarm
A description of each of the functions follows.
4.4.1
Capacity Control of Screw
Compressors
The capacity of a compressor can be controlled manually or
automatically.
The status of a compressor can be observed by displaying
the compressor control point 1/CP or 4/CP.
One of the following messages will be displayed where # is
1 or 4 for compressors 1 or 2:
CP#
CP#
CP#
CP#
CP#
CP#
CP#
COMP
COMP
COMP
COMP
COMP
COMP
COMP
LOAD COM
CURRENT STATUS: LOAD
HOLD COM
CURRENT STATUS: HOLD
UNLD COM
CURRENT STATUS: UNLD
OFF COM
CP# COMP COFF COM
CP# COMP LOFF MAN
4.4.1.1
Computer load
Manual load
Computer hold
Manual hold
Computer unload
Manual unload
Off on a normal
control shutdown
Off on timer (clock
off)
Manual off or safety
shutdown
Automatic Control
The computer calculates the operating percent capacity of a
compressor by measuring discharge pressure and amps. This
operating percent capacity is then compared to a target
percent capacity. If the operating capacity is outside of a +
3% deadband, the load or unload solenoids are pulsed to
match the operating and target percent capacities. Since all
compressors have the same target, their percent capacities
are balanced.
The target percent capacity is given a fixed value when a
compressor starts or stops. This value is then increased or
decreased based on how far the leaving water temperature
(TLW) is from setpoint and also on how fast the TLW is
approaching setpoint. The target percent capacity will not
change if the temperature is within a temperature deadband
around the setpoint.
Some packages may have logic that prevents loading if the
leaving water temperature is falling (negative derivative) at a
certain rate.
The desired leaving water temperature is typically stored in
setpoint 1A.
Calibrations of Amps Calculation at Full Load
The amps calculation is calibrated at the factory and does
not normally need to be altered. If a compressor is replaced
or improper operation is observed, the amps values can be
calibrated as follows:
4.0 OPERATION - MICROCOMPUTER CONTROL (CONT.)
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
Check calibration of discharge pressure, and amps.
NOTE: Calibrate amps with potentiometer on filter board.
Manually load the compressor(s) to full load. This can
be done one compressor at a time if necessary.
Locate the amps and full load amps (FLA) analog locations
from the analog input menu for the compressor being
calibrated.
When the compressor(s) are at full load and conditions
are close to design, record the amps and FLA analog
values.
If the values do not match within 2-3 amps, do the
following calculation: AMPS - FLA
Locate the amps calculation A setpoint for the
compressor from the setpoint menu.
The setpoint is labeled FLA # CON, where # is 1 through
4 for each compressor number.
Add the value obtained in step 5 to the amps calculation
A setpoint value from step 6.
Change the amps calculation setpoint to the new value.
Verify that amps and FLA now match closely.
Manually unload the compressor all the way.
Locate the percent full load capacity (%FLCP) for the
compressor from the analog input menu and record the
value.
If the value is 25% ±3%, no change is required. If the
value is less than 22% or greater than 28%, locate the
%FLA # CON setpoint B. If the setpoint is equal to 25.0,
change it to the value observed in step 11 and proceed
to step 13. If the setpoint is not equal to 25.0, change it
to 25.0 and repeat steps 11 and 12.
Repeat this procedure for each compressor.
4.4.1.2
Manual Control
Screw compressors can be controlled manually with the
keypad. A compressor can be turned on, off, or placed in
computer control. When a compressor is controlled manually,
it can be commanded to load, hold, or unload. If current
limit is active, it will not accept a load command.
To place a compressor in manual control, which turns it on,
the following procedure is used:
1.
2.
3.
4.
5.
Log in for authorization.
Address desired compressor (1, 4, 7, or 10 control point).
Press ENTER to modify status.
Use up or down arrow keys to select ON MAN.
Press ENTER. The compressor will start or continue to
run in hold state.
6. Press 0 to return to computer control, 1 to hold, 2 to
load, 3 to unload. Note: Compressors will not load past
amp limits.
7. Use menu key or arrows to access other data.
If a safety condition is exceeded while operating manually,
the compressor will shutdown. To put all compressors back
into computer control from a locked off state, press RESET.
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
NOTE: All compressors will revert back to automatic control
if the computer is not given a load, unload or hold command
at least once every 15 minutes. A command can be repeated
to meet the 15 minute requirement for manual control.
4.4.2
Staging of Compressors
The staging of compressors is based on leaving water
temperature and the capacity calculations mentioned in
section 4.1. When the percent capacity target gets up to full
load and temperature is above deadband, a time delay of
one or two minutes is initiated before starting the next
compressor. When the capacity target falls below a stored
setpoint and temperature is below the deadband, a
compressor is turned off.
The percent capacity values that the computer is calculating
can be displayed by addressing the analog input menu.
4.4.3
Compressor Current Limiting
The amp limit B setpoint on the unit control data sheet is the
amp value at which the compressor will be prevented from
loading. The amp limit A setpoint is the amp value at which
the compressor will be given an unload command until the
current drops below the A setpoint.
If the values are changed, the difference between the hold
and unload points should not be de-creased below 10% of
compressor RLA so that oscillations will not occur.
4.4.4
Ramp Control
Ramp control can be implemented with the microcomputer.
Whenever the unit starts with leaving water temperature
greater than 5°F above setpoint, a ramp up is generated.
The ramp start B setpoint specifies the percent capacity target
at which the ramp begins on the first compressor. This can
be set between 25 and 100 percent. The ramp rate A setpoint
specifies the maximum amount that can be added to the
target each compressor control interval. Thus a ramp rate of
0.1 produces the longest ramp rate. Table 1 gives sample
ramp times for various ramp rate setpoints and start points
for a two-compressor machine.
TABLE 1
Sample Ramp Times (Minutes) For a Two-Compressor Unit
with a 2-Second Compressor Control Interval
Ramp
Rate
Setpoint
.1
.2
.3
.4
25%
Start Pt.
Setpoint
58
29
19
15
50%
Start Pt.
Setpoint
50
25
17
12
75%
Start Pt.
Setpoint
42
21
14
10
A formula for calculating ramp time in minutes is:
T = [(# compressors x 100) - start pt.] x Compressor Control
Interval/(Ramp rate x 60)]
The compressor control interval can be determined by timing
the frequency of load/unload pulses given to a compressor.
It is typically 2 seconds.
CAUTION: Anti-recycle timer is bypassed by manual control.
DO NOT start a compressor more than once every 15 minutes.
67
4.0 OPERATION - MICROCOMPUTER CONTROL (CONT.)
4.4.5
Manual Lead/Lag Selection
The lead compressor can be selected by the lead B setpoint.
The number stored in this setpoint should be one less than
the desired compressor number. So a 0.0 in the setpoint
specifies compressor 1 as the lead, a 1.0 puts compressor 2
as lead, etc. It is preferable to have compressor 1 as the lead.
If a compressor is locked off, the next compressor will
automatically take its place in the lead/lag sequence.
4.4.6
Compressor Start Delay
A compressor start delay of one or two minutes is
incorporated into the computer to prevent two compressors
from starting at the same time and insure that the system
load requires another compressor. The compressor control
point will display COFF (“clock off”) during this timing.
4.4.7
Power Loss Reset
This function allows the customer the option of automatic
or manual reset of the computer after a power loss to the
computer. The power loss could be from the UVR or control
switch. For automatic reset, a 0.0 is stored in the power loss
B setpoint. For manual reset after power failure, a 1.0 is stored
in the setpoint. A power loss alarm is also recorded by the
computer.
4.4.8
Anti-Recycle Timing
At the start of a compressor, a 15 minute timer is initiated
during which the compressor cannot start. If cooling is called
for during this time, a COFF is displayed in the compressor
control point.
CAUTION: This timer is bypassed by manual control of
compressors. DO NOT manually start a compressor more than
once every 15 minutes.
4.4.9
Low Pressure Safety
When the evaporator pressure of a given refrigeration circuit
drops below the low pressure B setpoint, a time delay is
initiated. If the pressure stays below the setpoint during the
time period, all compressors on the circuit will be locked off
and the low pressure alarm will be recorded by the computer.
For an air-cooled unit, the time delay is two minutes when
ambient temperature is above 40°F. If ambient temperature
drops below 40°F, the delay on compressor start up is
extended to 4 minutes. After start-up, the low pressure delay
is two minutes.
4.4.10
High Pressure Safety
If the condensing pressure of a refrigeration circuit exceeds
the high pressure A setpoint, all compressors on the circuit
are locked off. The high pressure alarm will be recorded by
the computer. Typical setpoint value is 360 psig.
4.4.11
Freeze Safety
If the leaving water temperature of a chiller drops below the
freeze B setpoint, all of the compressors will be locked off.
The freeze alarm will be recorded by the computer. Press
RESET to clear the lockout.
4.4.12
Alarm Output
The alarm control point closes the digital output relay on all
safety alarms. This relay is used to turn an alarm light on.
After the problem is resolved, press RESET to reset the system
and turn the alarm output off.
68
4.4.13
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
Fan Control
The fans are controlled by the microcomputer out put relays.
The computer switches fans on or off based on the discharge
pressure and the fan pressure setpoints. The high (A) setpoints
are where the fans turn on and the low (B) setpoints are
where the fans turn off.
4.4.14 Chilled Water Reset (Optional)
and Customer Control Interlock
If an analog input is available, the chilled water temperature
setpoint can be raised automatically by a 0-5 VDC signal
provided by an external controller. The reset signal must be
between 0VDC and 5VDC, with 0VDC being no reset and
5VDC being maximum reset. The maximum temperature reset
(increase) desired must be stored in CWR max B setpoint.
For example, to raise the chilled water setpoint from 44°F to
50°F (6.0°F) with a 5VDC input, a 6.0 is stored in CWR max
setpoint.
CAUTION: The voltage input must never exceed 5.0VDC.
Control contacts from an external controller are used to
enable or disable operation of compressors. The wiring
diagram specifies the terminals to which the contacts must
be wired removed. To enable the compressors, the contacts
must be closed. To place the unit in stand-by mode, open
the control contact.
Note: This control must be used for automatic control of the
package. Do not use the flow switch to control the package.
4.4.15 Hot Gas Bypass Control (option)
When hot gas bypass has been supplied with the package,
an output from the computer controls the solenoid. The
solenoid is turned on if only one compressor is operating
and the target percent capacity of the compressor drops
below the hot gas bypass B setpoint. If the target percent
capacity then climbs above the hot gas bypass A setpoint,
the solenoid is turned off. Typical setpoints are 45% for the B
setpoint and 80% for the A setpoint.
4.4.16 Compressor Power Control (NoStop Alarm) and Unit Schedule
The control power/schedule feeds power to the compressor
safety and control circuit and closes the chilled water pump
contacts. (See Field Control Wiring). After power-up, the
relay is held open for 15 seconds to allow for reset of the
high motor temperature safety switch. The relay is then
closed to allow normal compressor control if the unit schedule
is calling for unit operation.
The computer will open this relay if it detects that a
compressor auxiliary contact digital input stays ON for 15
seconds when the computer is commanding the compressor
to be off. A No-Stop alarm would then be stored in the
alarm history. This would indicate that either a hardware
problem is forcing the compressor to run when it should not
or that the digital input is staying on when the compressor is
actually off. When the problem is resolved, press the RESET
button to allow the machine to start.
During normal operation, this output turns ON/OFF based
on the unit schedule of operation (see Section 3.9).
4.0 OPERATION - MICROCOMPUTER CONTROL (CONT.)
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
4.4.17 Sensor Alarm Shutdown
4.4.23 Low Suction Pressure Unload
If the computer measures an analog sensor value that is
outside of a given boundary, the associated compressors are
shutdown. The computer then stores the alarm code
corresponding to the sensor alarm. The boundary values are
as follows:
This function unloads the compressor if suction pressure is
approaching the low pressure limit. If suction pressure
reaches the low pressure setpoint plus 4 psi, the compressor
will be prevented from loading (HOLD state). If suction
pressure falls to the suction pressure setpoint plus 2 psi, the
compressor will begin unloading.
1.
2.
3.
4.
Water temperature sensor
Air temperature sensor
Suction pressure
Discharge pressure
Low
25°F
-20 psig
5 psig
High
190°F
180°F
See below
--
The high setpoint for the suction pressure sensor will be
triggered if the leaving water temperature is less than 60°F
and suction pressure is greater than 150 psig.
If one of these sensor alarms occurs, it usually indicates a
loose wire, blown fuse, defective sensor, or faulty analog
board.
4.4.24 Low Oil Level Alarm
An oil level float switch is located in each compressor. If low
oil indication (digital input is OFF) persists for 60 seconds
during compressor operation, the microcomputer will then
shut down the compressor. The status of the float switch
can be seen on the computer display or the associated LED
of the Digital I/O Board. Failure is indicated on the alarm
pilot light. The low oil alarm code will be recorded by the
computer. Press the RESET key to reset the system.
4.4.18 External Shutdown Indication
(No-Run Alarm)
A No-Run control point error is generated if the computer
tries to start (or run) a compressor but the compressor is
held off by an external control. The computer determines
that the compressor is not operating if the associated digital
input from the compressor contactor does not indicate that
the contactor is pulled in (digital input stays OFF), or if the
amps of the compressor are less than 12 amps. If a faulty
No-run alarm occurs, onitor the digital input and amps to
see which is producing the fault.
4.4.19 Fast Unload Solenoid Control
When a compressor starts, it’s fast unload solenoid is
energized for 30 seconds to ensure that the compressor
unloads fully. The load and unload solenoids are de-energized
during this time delay. After the time delay, normal control
of the load/unload solenoids is restored.
4.4.20 High Motor Temperature Safety
If the high motor temperature switch of a compressor opens,
the motor temperature digital input turns ON. If the
compressor is operating, the compressor will be locked off.
The high motor temperature alarm will be recorded by the
computer and RESET must be pressed after the problem is
resolved.
4.4.21 Low Chiller Flow Alarm
A low flow alarm will be generated if a compressor control
point is ON and the flow switch digital input is OFF. All
compressors will be locked off and the alarm light turned
on. After resolving the problem, press RESET.
4.4.22 High Discharge Pressure Unload
This function unloads the compressor if discharge pressure
is approaching the high pressure limit. If discharge pressure
of an operating compressor reaches the high pressure setpoint
minus 10 psi, the compressor will be prevented from loading
(HOLD state). If the discharge pressure reaches the high
pressure setpoint minus 5 psi, the compressor will begin
unloading.
69
4.0 OPERATION - MICROCOMPUTER CONTROL (CONT.)
Typical Power Wiring Diagram (Single Compressor Model)
1CB
CIRCUIT BREAKER
OPTION
*
UNIT
FUSING
200/3/60
230/3/60
400/3/50
460/3/60
575/3/60
L1
1L1
L2
1L2
L3
SEE NOTES 2, 3 & 4
L1
WITH
HANDLE
1L3
SEE NOTE 6
1TB
11FU
6TB
5L1
L2
12FU
5L2
L3
13FU
5L3
~ ~ ~
~ ~ ~
4.5
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
5L1
5L2
5L3
SEE NOTE 6
GND
LUG
1OL
400/3/50
460/3/60
575/3/60
STANDARD FAN MOTOR WIRING
SEE COMPACT & EXTENDED OPTIONS
1M1
1M2
1OL
11L1
~ 460V
11L3
~
~
~
200/3/60
230/3/60
(1L1)
1T1 1T2 1T3 1T4 1T5 1T6
(1L2)
1
2
3
7
8
9
1-MTR
COMPRESSOR MOTOR
SEE NOTE 5
(1L1)
(1L1)
(1L2)
(1L2)
5L1
A
~
~
~
STATE, AND NATIONAL CODES.
3- USE COPPER CONDUCTORS ONLY. CONTROL
WIRING 14AWG.
4- BRANCH CIRCUIT PROTECTION SHALL BE PROVIDED
BY INSTALLER. DISCONNECT MEANS ALSO REQUIRED
UNLESS CIRCUIT BREAKER OPTION IS FURNISHED.
5- IF POWER SUPPLY HAS BEEN INTERRUPTED FOR
A PROLONGED PERIOD, OIL SUMP HEATERS MUST
BE ENERGIZED FOR 24 HOURS MINIMUM BEFORE
STARTING COMPRESSORS.
6- USE 1TB WITH CIRCUIT BREAKER OPTION
ON ACDX68 200V ONLY.
*
[]
CIRCUIT BREAKER
SHORTING CONTACTOR
CONVENIENCE OUTLET
COMPRESSOR
CAPACITOR
CURRENT TRANSFORMER
FAN MOTOR
FUSE
GROUND
CONTACTOR
MOTOR
OVERLOAD
SWITCH
SPEED CONTROL
SOLENOID
TRANSFORMER
TERMINAL BLOCK
UNDERVOLTAGE RELAY
VOLTMETER
MANUAL RESET
FACTORY TERMINAL
FIELD WIRING
FIELD SUPPLIED
STANDARD COMPONENT
5L1
5L2
5L3
FAN MOTORS
~ ~ ~
2- ALL FIELD WIRING SHALL COMPLY WITH LOCAL,
CB
C
CO
COMP
CPR
CT
FM
FU
GND
M
MTR
OL
S
SCR
SOL
T
TB
UVR
VM
~ ~ ~
LEGEND
1- FUSES SHALL BE TIME DELAY TYPE.
5L1
5L2
5L3
019322AB
FAN MOTORS
70
B
UVR
1CO
NOTES
5L2
5L3
C
4.0 OPERATION - MICROCOMPUTER CONTROL (CONT.)
4.6
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
Typical Control Wiring Diagram (Single Compressor Model)
CUSTOMER SUPPLIED POWER
115 VAC
AUDX-NOT SUPPLIED
SEE POWER DIAGRAM FOR TRANSFORMER OPTION.
SEE NOTES 2, 3 AND 4.
SEE POWER DIAGRAM FOR
CHILLER HTR TRANSFORMER OPTION.
5TB
SEE NOTES 2, 3 AND 4.
102
CHILLER HEATER
1
1
4
5
6
1
2
3TB
14AWG
1M2-1
2
3
115 VAC
101
SEE NOTE 5
3
400W
COMP OIL SUMP HTR
S1(CONTROL POWER)
7
J7
1M1-2
8
7
1
8
2
5
COMP 1 LIQ INJECTION
SOL.
6
12
7
9
10
11
DIGITAL
I/O BOARD
(1DI/OB)
12VAC
12
1M1-1
13
9
1M2-2
RIBBON CABLE
TO MICROCOMPUTER
J1
10
1H
1DI
COMP SWITCH AUXILIARY
1N
14
15
2H
17
18
2DI
CWP*
8
8
*
11
1CPR
12
CWFS
3H
13
4H
SEE NOTES 7 & 9
19
3DI
4DI
21
1C
22
24
2CPR
WATER FLOW SWITCH
3N
UNIT CONTROL
4N
4TB
61
60
SH
+12VDC
GND
20
23
COMP 1 OIL FLOAT
SWITCH
2N
SEE NOTE 9
16
1CP
1NO
20
1M1
21
COMP 1 CTR 1ST WINDING
(6, 13)
1M2
COMP 1 CTR 2ND WINDING
(2, 13)
3CR-1
2SOL
25
COMP 1 LIQUID LINE SOL
AUDX-FIELD WIRED
26
27
28
29
10
2C
2CP
2NO
28
3SOL
3C
3CP
3NO
29
4SOL
4C
4CP
30
2CR
COMP 1 LOAD SOLENOID
30
31
COMP 1 UNLOAD SOLENOID
32
33
34
4NO
ALARM OUTPUT (60)
8
35
31
3CR
CONTROL POWER/SCHEDULE
(24, 55)
36
37
32
2M
38
39
33
3M
40
FAN
CONTROL
STAGE
STAGE
1
COMPACT
OPT.
STD
EXT.
OPT.
FAN
1&2
FAN
1&2
FAN
1&2
STAGE
2
FAN
3&4
FAN
3&4
FAN
3&4
STAGE
3
--
FAN
5&6
FAN
5&6
STAGE
4
--
--
FAN
7&8
41
34
42
4M
43
44
45
46
47
35
48
49
5M
SEE NOTE 13
36
50
51
11
52
12VAC
53
12
2
HOT GAS BYPASS
54
55
56
57
58
SEE NOTE 10
59
60
61
019331AC
71
4.0 OPERATION - MICROCOMPUTER CONTROL (CONT.)
4.6
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
Typical Control Wiring Diagram (Single Compressor Model) (cont.)
(+) 106
(-)
104 (+)
107
105
SH
SH
(-)
7
CONTROL
POWER
2
1LT
W
16
30
ALARM
2
2LT
R
#1 MTR
OVERLOAD
19
R
36
5SOL
SET POINTS
NAME
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
LV WTR SP.
LEAD
RAMP UP
AMP LIMIT
PWR LOSS
HI/LO PRESSURE
FREEZE
HOT GAS BYPASS
LO AMB
SUCTION LIMIT
DISCHARGE LIMIT
FAN STAGE 1
FAN STAGE 2
FAN STAGE 3
FAN STAGE 4
DMND LMT/CWR
A
TLW °F
0.2
(UNLOAD)
B
0.0
30.0
(HOLD)
360 PSIG
SEE TABLE
SEE TABLE
SEE TABLE
355 PSIG
230 PSIG
240 PSIG
250 PSIG
260 PSIG
0.0
SEE TABLE
345 PSIG
100 PSIG
140 PSIG
160 PSIG
170 PSIG
0.0
GND
10
4CR
2
NOTES
12345678910-
12-
019331BB
72
13-
FUSES SHALL BE TIME DELAY TYPE.
ALL FIELD WIRING SHALL COMPLY WITH LOCAL, STATE
AND NATIONAL CODES.
USE COPPER CONDUCTORS ONLY. CONTROL WIRING 14AWG WITH MAX.
15A OVERCURRENT PROTECTION. USE TERMINALS 2 AND 102 FOR
NEUTRAL CONNECTIONS.
DISCONNECT MEANS AND BRANCH CIRCUIT PROTECTION
SHALL BE PROVIDED BY INSTALLER IF NOT SUPPLIED.
IF POWER SUPPLY HAS BEEN INTERRUPTED FOR A
PROLONGED PERIOD, OIL SUMP HEATERS MUST BE ENERGIZED
FOR 24 HOURS MINIMUM BEFORE STARTING COMPRESSORS.
TO RESET OVERLOAD TURN COMPRESSOR SWITCH OFF FOR 5 SECONDS.
CUSTOMER CONTROL CONTACTS MUST BE WIRED BETWEEN
TERMINALS 8&13.
IF 0-5 VDC CWR IS USED, SET SETPOINT 16B TO RESET DESIRED
AT +5VDC INPUT.
CAUTION: DO NOT SUPPLY OVER 5.0VDC TO 6AI.
SHIELDED CABLE IS RECOMMENDED FOR CUSTOMER SUPPLIED
CONTACT WIRING. GROUND ON SUBPANEL.
CONTACT RATING IS 10A AT 125 VAC AND 5A AT 250 VAC (1/2 HP).
IF 0-5 VDC DEMAND LIMIT IS USED, SET SETPOINT 16A TO
THE DESIRED DEMAND LIMIT AT +5 VDC INPUT. THERE IS
NO DEMAND LIMITING AT 0 VDC INPUT.
CAUTION: DO NOT SUPPLY OVER 5.0 VDC TO 7AI.
5M IS USED IN THE EXTENDED OPTION ONLY.
DDOUT BRD (2DOB) IS USED IN EITHER THE
EXTENDED OPTION AND/OR HOT GAS BYPASS OPT.
2
4.0 OPERATION - MICROCOMPUTER CONTROL (CONT.)
4.7
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
Typical Power Wiring Diagram (Three Compressor Model)
019352AB
73
4.0 OPERATION - MICROCOMPUTER CONTROL (CONT.)
4.7
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
Typical Power Wiring Diagram (Three Compressor Model) (cont.)
VARIABLE SPEED FAN MOTORS
LOW AMBIENT OPTION
6L1
575V ONLY
6L3
19FU
10A
FURNISHED
NOT FURNISHED
20FU
10A
120 V
CONNECTION
11T
VARIABLE SPEED FAN MOTORS
5L1
575V ONLY
13L3
13L1
5L3
14FU
10A
460V
~
15FU
10A
120 V
CONNECTION
~
~
~
[12M]
5T
10L3
10L1
CLASS 2
CLASS 2
163
12T
460V
~
~
~
~
~
~
~
460V
~
[4M]
CLASS 2
d
CLASS 2
157
6T
M1
155
71
74
GND
72
2
1
1
3
1
1FM
f
h
2
3
1
a
3
b
STANDARD
COMPACT OPTION
EXTENDED OPTION
3
2FM
a
b
c
d
e
f
g
h
11FM
9FM
13FM
12FM
10FM
14FM
100
94
106
101
95
107
102
96
108
103
97
109
104
98
110
105
99
111
UNDER/OVER
VOLTAGE RELAY OPTION
3 PHASE VOLTMETER OPTION
3 PHASE AMMETER OPTION
FAN MOTOR WIRE NUMBERS
FAN MOTOR NOS.
75
2
GND
4CPR
GND
2CPR
73
g
GND
e
2
M1
158
1CPR
70
c
L1 2SCR
24 159
VAC
M1
164
3CPR
160
7T
L1 1SCR
24 156
VAC
L1 4SCR
24 165
VAC
M1
161
[5M]
166
13T
L1 3SCR
24 162
VAC
FURNISHED
NOT FURNISHED
FURNISHED
NOT FURNISHED
FURNISHED
NOT FURNISHED
L1
AMMETER
TRANSFER SWITCH
VOLTMETER
TRANSFER SWITCH
11
12
21
22
13
A
B
L3
C
UVR
14
23
L2
24
VM
~
7FU
L1
~
8FU
L2
~
9FU
CONTROL
TRANSFORMER
OPTION
FURNISHED
NOT FURNISHED
SEE NOTE 1
L2
REMOVE J9
9L3
DOOR LATCH
SOLENOID OPTION
FURNISHED
NOT FURNISHED
FURNISHED
NOT FURNISHED
L1
L1
L1
9L2
CHILLER HEATER
TRANSFORMER
OPTION
CONVENIENCE
OUTLET OPTION
FURNISHED
NOT FURNISHED
L2
L3
9L1
SEE NOTE 1
L2
575V ONLY
SEE NOTE 1
L1
L2
1FU
4FU
2FU
11L2
11L1
12L2
12L1
17FU
7L1
7L2
1T
8T
L1
1B
94
101B
L2
6FU
15A
1
3TB
2
98
115VAC
99
101
5TB
102
9T
11FU
0.5A
120VAC
OR
13SOL
8L2
8L1
POWER DOOR
13SOL
1
8L2
8L1
10FU
0.5A
115VAC
1CO
019352BB
115VAC
18FU
15A
11FU
.75A
10FU
.75A
3T
3FU
15A
74
16FU
5FU
2
1A
KEY
SWITCH
12SOL
1
2
1A
KEY
SWITCH
12SOL
4.0 OPERATION - MICROCOMPUTER CONTROL (CONT.)
4.8
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
Typical Control Wiring Diagram (Three Compressor Model)
5TB
GND
101
3
1
2
3TB
1
5
S1
6
1M2-1
3
2M2-1
4
3M2-1
5
2 HTR
3 HTR
4 HTR
CONTROL
POWER
7
8
10
GND
NOTE: (3) HEATER TAPES
4
9
115VAC
CHILLER HTR
5 HTR
1
2
SEE POWER DIAGRAM FOR TRANSFORMER
OPTION. SEE NOTES 2, 3 AND 4.
115VAC - CUSTOMER SUPPLIED AUDX-NOT SUPPLIED
SEE POWER DIAGRAM FOR CHILLER HTR TRANSFORMER OPTION.
SEE NOTES 2, 3, & 4
102
10
400W
COMP 1 OIL SUMP HTR
400W
COMP 2 OIL SUMP HTR
400W
COMP 3 OIL SUMP HTR
1M1-2
J9
9
115VAC
1
11
2
12
18
13
6
5
7
2M1-2
11 8TAS-1
12
13 8TAS-2
14
2SOL
15 8TAS-3
16
3SOL
1SOL
2T
12VAC
12FU
12
3M1-2
19
COMP 1 LIQ INJECTION SOL
COMP 2 LIQ INJECTION SOL
COMP 3 LIQ INJECTION SOL
13FU
4A
14
DIGITAL
I/O BOARD
(D I/O B)
15
12VAC
16
1M1-1
17
22
2M1-1
18
24
3M2-2
1.5A
22
1.5A
2FS BLK
WHT
32FU
23
WHT
CWP *
10
33
*
10
1H
26
2H
27
3H
RIBBON CABLE
TO MCB
1N
1DI
COMP 1CTR AUX.
2N
2DI
COMP 2CTR AUX.
3N
3DI
COMP 3CTR AUX.
28
4H
29
5H
30
6H
YEL
4N
4DI
COMP 1 OIL FLOAT SWITCH
5N
5DI
COMP 2 OIL FLOAT SWITCH
31
3FS
BLK
YEL
COMP 3 OIL FLOAT SWITCH
1CPR
32
CWFS
6N
6DI
7H
8H
NOTES 7 & 8
7DI
8DI
2CPR
7N
WATER FLOW SWITCH
8N
UNIT CONTROL
115VAC
29
33
25
22RES
33FU
27
BLK
21RES
1.5A
25
26
1FS
YEL
24
32
WHT
31FU
21
31
TO MICROCOMPUTER
20RES
20
30
21
2M2-2
23
3M1-1
19
28
20
1M2-2
14T
3CR
41
24VAC
39
35
S2
40
38
1PB
COMP
#1
1C
1CP
1NO
J42
M1
T2
M2
B
T1
35
S1
44
S2
45
S3
C
47
46
G
TO 25
2AIB
2C
2CP
2NO
105
BLK
38
MOTOR TEMP
SENSORS
41
42
43
S3
3C
3CP
3NO
4C
4CP
4NO
5SOL
3SN
49
COMP
#2
2PB
M2
B
T1
56
46
S2
57
58
2M2
7SOL
AUDX-FIELD WIRED
100
S1
6SOL
2M1
55
3 1
10TR-2
M1
T2
44
45
J54
52
C
S3
59
G
TO
2AIB
105
26
5C
6C
5CP
6CP
5NO
6NO
60
61
COMP 1 LIQUID
LINE SOL.
COMP 1 LOAD SOLENOID
COMP 1 UNLOAD SOLENOID
4SN
54
COMP 2
OVERLOAD
2OL
NOTE 6
50
COMP 1 CTR 2ND WINDING
(4, 17)
2SN
48
53
40
COMP 1 CTR 1ST WINDING
(9,17)
4SOL
37
39
1M1
1M2
AUDX-FIELD WIRED
99
34
43
3 1
10TR-1
51
36
1SN
42
COMP 1
OVERLOAD
1OL
NOTE 6
COMP 2 CTR 1ST WINDING
(11,18)
COMP 2 CTR 2ND WINDING
(5, 18)
COMP 2 LIQUID
LINE SOL.
5SN
8SOL
6SN
9SOL
COMP 2 LOAD SOLENOID
COMP 2 UNLOAD SOLENOID
BLK
47
MOTOR TEMP
SENSORS
019338C1
75
4.0 OPERATION - MICROCOMPUTER CONTROL (CONT.)
4.8
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
Typical Control Wiring Diagram (Three Compressor Model) (cont.)
2
(DI/OB)
48
64
49
7C
7CP
7NO
51
53
S4
167
M2
M1
T2
63
B
T1
55
S1
67
56
S2
68
S3
69
C
70
57
G
27
TO
2AIB
MOTOR TEMP
SENSORS
59
8C
8CP
8NO
71
9C
9CP
9NO
72
10C
10CP
10NO
74
11C
11CP
11NO
75
+12VDC
61
GND
62
63
12CP
12NO
13C
13CP
13NO
14C
14CP
14NO
15C
15CP
15NO
16C
16CP
16NO
69
71
72
151
73
3CR
75
1C
17CP
1NO
2C
18CP
2NO
3C
19CP
3NO
4C
20CP
4NO
5C
21CP
5NO
6C
22CP
6NO
77
153
2CR
154
17SN
18SN
ALARM
CONTACT
19SN
81
20SN
82
83
21SN
84
019338C2
92
RIBBON
CABLE
DIGITAL
OUTPUT BOARD #2
(2D0B)
76
87
90
16SN
152
CHILLED
WATER
PUMP
CONTACTS
74
86
11SN
15SN
70
EXTENDED
FAN MOTOR OPTION
ONLY
22SN
JUMPER ON GND
ADDRESS #3
2CR
3CR
14SN
68
85
10SN
13SN
67
80
12SOL
12SN
12C
65
79
11SOL
9SN
SH
66
COMP 3 CTR 2ND WINDING
(5, 19)
COMP 3 LIQUID
LINE SOL.
8SN
4TB
64
COMP 3 CTR 1ST WINDING
(12,19)
COMP 3 LOAD SOLENOID
COMP 3 UNLOAD SOLENOID
BLK
60
78
10SOL
105
10
58
3M2
AUDX-FIELD WIRED
3PB
COMP
#3
66
3 1
10TR-3
COMP 3
OVERLOAD
3OL
NOTE 6
62
54
76
3M1
J65
50
52
7SN
65
ALARM OUTPUT
(58)
CONTROL POWER
(30, 71)
4.0 OPERATION - MICROCOMPUTER CONTROL (CONT.)
4.8
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
Typical Control Wiring Diagram (Three Compressor Model) (cont.)
RIBBON CABLE
88
TO DIGITAL I/O BOARDS
89
90
RIBBON CABLE
91
92
93
94
J3
AUDX-FIELD WIRED
MICROCOMPUTER
(MCB)
J2
RS485
J5
DISPLAY
RS232
J6
95
20
J7
96
97
98
99
100
101
102
103
104
105
106
SERIAL
COMMUNICATION
PORTS
1TS
LEAVING
COOLER
WATER
TEMP
INSTRUCTIONS
PRESS HELP KEY FOR BASIC
OPERATION INSTRUCTIONS.
TO DISPLAY CONTROL VALUE
1) PRESS MENU KEY TO DISPLAY
MENU ITEM.
2) USE UP OR DOWN ARROW TO
MOVE TO DESIRED MENU ITEM.
3) PRESS ENTER KEY TO SELECT
DESIRED MENU ITEM.
4) USE UP OR DOWN ARROW TO
DISPLAY DESIRED CONTROL VALUE.
1PT
SUCTION
PRESSURE
COMP 1
109
BLK
88
WHT
92
RED
90
GRN
91
WHT
92
SH
2PT
DISCHARGE
PRESSURE
COMP 1
RED
90
GRN
93
WHT
92
SH
FOR MORE INFORMATION
SEE OWNERS MANUAL.
3PT
SUCTION
PRESSURE
COMP 2
RED
90
GRN
94
WHT
92
SH
107
108
87
12VAC
21
KEYBOARD
RED
2TS
AMBIENT
TEMP
RED
87
BLK
95
WHT
92
110
AI BOARD #1
(1AIB)
+5
AI5
AI1
(4TB)
AI2
(4TB)
(4TB)
(4TB)
GND
(4TB)
(4TB)
(4TB)
1ZD
GND
(4TB)
AI3
AI6
(4TB)
3ZD
(4TB)
GND
(4TB)
AI7
(4TB)
(4TB)
(4TB)
(4TB)
90
RED
96
GRN
92
WHT
4PT
DISCHARGE
PRESSURE
COMP 2
SH
90
RED
97
GRN
92
WHT
5PT
SUCTION
PRESSURE
COMP 3
SH
90
RED
98
GRN
92
WHT
6PT
DISCHARGE
PRESSURE
COMP 3
SH
(4TB)
AI4
(4TB)
(4TB)
2ZD
GND
+5
AI8
GND
111
112
RIBBON
CABLE
113
114
AI BOARD #2
(2AIB)
115
(+) 104
116
117
CHILLED
WATER
RESET
118
119
AI12
(#4)
0-5 VDC
4ZD
(-) 105
SEE NOTE 10
122
123
124
125
(+) 106
DEMAND
LIMIT
GND
AI10
(#2)
GND
(-) 105
SEE NOTE 12
105
TO 1OL
100
105
TO 2OL
AI13
(#5)
0-5 VDC
99
GND
SH
120
121
AI9
(#1)
5ZD
AI11
(#3)
GND
GND
167
105
TO 3OL
SH
JUMPER ON
ADDRESS #2
019338C3
77
4.0 OPERATION - MICROCOMPUTER CONTROL (CONT.)
4.8
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
Typical Control Wiring Diagram (Three Compressor Model) (cont.)
126
127
WATER TEMPERATURE OPTION
129
3TS
ENTERING
COOLER
WATER
TEMP
130
131
132
~
NOT FURNISHED
FURNISHED
128
RED
87
BLK
168
+5
AI14
(#6)
92
WHT
~
AI BOARD #2
(2AIB)
COMPRESSOR STARTS
COUNTER OPTION
42
1SC
54
2SC
42
1ETM
FURNISHED
NOT FURNISHED
AUDX-FIELD WIRED
GND
3ETM
FURNISHED
NOT FURNISHED
2
RS232
2ETM
3SC
GND
2
1
54
65
65
FURNISHED
NOT FURNISHED
MODEM OPTION
ELAPSED TIME METER OPTION
BLK
WHT
J6
TELEPHONE
MODEM
POWER
OUTLET
2
LINE
133
134
PILOT LIGHT OPTION
135
136
137
10
25
4CR
2
26
5CR
2
27
6CR
2
10
116
BLK/WHT
145
BLK
146
147
117
BLK/WHT
118
E7
149
BLK
E1
+12VDC
E2
E3
1VC
SUCTION
PRESSURE
#2
SUCTION
TEMP. #2
121
E12
122
RED
123
GRN
124
WHT
7PT
1
2
3
1
+V
E6
2
125
RED
126
GRN
127
WHT
139
8PT
BLK
140
E7
E1
+12VDC
E2
SUCTION
PRESSURE
#3
E8
E3
2VC
+V
1
141
RED
142
GRN
143
WHT
2
3
3
147
BLK
LEGEND
144
WHT
145
RED
146
GRN
4MTR
AI
ANALOG INPUT
CB
CIRCUIT BREAKER
COMP
COMPRESSOR
CP
CONTROL POINT
CAPACITOR
CPR
CR
CONTROL RELAY
CT
CURRENT TRANSFORMER
CONTACTOR
CTR
CWFS
CHILLED WATER FLOW SWITCH
CHILLED WATER PUMP
CWP
CHILLED WATER RESET
CWR
DIGITAL INPUT
DI
FS
FLOAT SWITCH
FUSE
FU
GROUND FAULT
GF
GROUND
GND
HIGH OIL TEMP
H-O-T
HIGH MOTOR TEMP
HMT
HTR
HEATER
INPUT/OUTPUT
I/O
LEVEL SENSOR
LS
LT
LIGHT
M
CONTACTOR
MCS
MOLDED CASE SWITCH
MOV
METAL OXIDE VARISTOR
MOTOR
MTR
NORMALLY CLOSED
NC
NORMALLY OPEN
NO
OVERLOAD
OL
PB
PUSH BUTTON
PRESSURE TRANSDUCER
PT
RESISTOR
RES
RELAY
RLY
STARTS COUNTER
SC
SHIELD
SH
SNUBBER
SN
SOL
SOLENOID
THERMOSTAT
TAS
TERMINAL BLOCK
TB
TEMP LEAVING WATER
TLW
TR
TIMER
TEMP. SENSOR
TS
UNDERVOLTAGE RELAY
UVR
VAPOR INJECTION
VI
VOLTMETER
VM
ZENOR DIODE
ZD
MANUAL RESET
FACTORY TERMINAL
FIELD WIRING
5MTR
155
COMP #1
TX VALVE
156
157
H0T GAS BYPASS OPTION
(1 CIRCUIT)
158
FURNISHED
NOT FURNISHED
159
COMP #2
TX VALVE
162
10
3C
HOT GAS BYPASS OPTION
(ALL CIRCUITS)
FURNISHED
NOT FURNISHED
TO MCB
(J2)
25CP
3NO
RIBBON
CABLE
TO MCB
(J2)
DIGITAL
OUTPUT BOARD #3
(3DOB)
DIGITAL
OUTPUT BOARD #3
(3DOB)
161
COMP #3
TX VALVE
RIBBON
CABLE
160
10
148
23SN
13SOL
25CP
3C
2
3NO
26CP
4C
4NO
2
148
23SN
13SOL
149
24SN
14SOL
150
25SN
15SOL
CIRCUIT #1
CIRCUIT #2
164
165
20
166
21
12VAC
27CP
5C
5NO
GND
CIRCUIT #3
20
167
JUMPER ON
ADDRESS #4
168
12VAC
21
GND
JUMPER ON
ADDRESS #4
*
169
170
171
172
173
174
175
176
177
178
179
NOTES
123-
FUSES TO BE TIME DELAY TYPE.
ALL FIELD WIRING SHALL COMPLY WITH LOCAL, STATE AND NATIONAL CODES.
USE COPPER CONDUCTORS ONLY. CONTROL WIRING 14AWG. WITH MAX.
15A OVERCURRENT PROTECTION, USE TERMINALS 2 AND 102 FOR
NEUTRAL CONNECTIONS.
4DISCONNECT MEANS AND BRANCH CIRCUIT PROTECTION SHALL BE PROVIDED
BY INSTALLER
5I F POWER SUPPLY HAS BEEN INTERRUPTED FOR A PROLONGED PERIOD,
OIL SUMP HEATERS MUST BE ENERGIZED 24 HOURS MINIMUM BEFORE
STARTING COMPRESSORS.
6TO RESET OVERLOAD, PRESS CORRESPONDING PUSH BUTTON.
7
CUSTOMER CONTROL CONTACTS MUST BE WIRED
BETWEEN TERMINALS 10 AND 33.
8SHIELDED CABLE IS RECOMMENDED FOR FLOW SWITCH AND CUSTOMER CONTROL
FIELD WIRING.
9CONTACT RATING IS 10A AT 125VAC AND 5A AT 250VAC (1/2HP).
10- IF 0-5 VDC CWR IS USED, SET SETPOINT 16B TO RESET DESIRED AT +5VDC INPUT.
CAUTION: DO NOT SUPPLY OVER 5.0 VDC TO AI10.
11- LOW AMBIENT SETPOINT 16A CAN BE SET TO A MINIMUM OF 0°F (-17°C) IF
LOW AMBIENT OPTION IS SUPPLIED, OR -20°F (-29°C) IF BOTH LOW AMBIENT
AND ELECTRONIC TX VALVE OPTIONS ARE SUPPLIED.
LIMIT AT +5 VDC INPUT. THERE IS NO DEMAND LIMITING AT 0 VDC INPUT.
CAUTION: DO NOT SUPPLY OVER 5.0 VDC TO AI11.
12-
IF 0-5 VDC DEMAND LIMIT IS USED, SET SETPOINT 17A TO THE DESIRED DEMAND
180
019338C4
78
9PT
GND
6MTR
154
163
PUMP
DOWN
#1
SUCTION
TEMP. #3
128
WHT
129
RED
130
GRN
131
BLK
135
BLK
153
132
WHT
133
RED
134
GRN
152
#3 MTR
OVERLOAD
64
R
62
6CR
GND
+V
#1 MTR
OVERLOAD
41
R
#2 MTR
OVERLOAD
53
R
138
24
VAC
BLK/WHT
E4
+12VDC
E5
150
151
50
137
136
GND
E11
148
ALARM
2
2LT
R
2
24VAC
PUMP
DOWN
#2
SUCTION
PRESSURE
#1
E8
120
74
10T
PUMP
DOWN
#1
SUCTION
TEMP. #1
119
CONTROL
POWER
2
1LT
W
115VAC
4CR
24
VAC
143
144
38
NOT FURNISHED
115
5CR
114
142
9
FURNISHED
4T
24VAC
141
FURNISHED
NOT FURNISHED
ELECTRONIC
TX VALVE
OPTION
115VAC
139
140
2
SET POINTS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
LV. WTR. SP.
LEAD
RAMP UP
AMP LIMIT 1
AMP LIMIT 2
AMP LIMIT 3
PWR LOSS
HI/LO PRESS
FREEZE
FAN STAGE 1
FAN STAGE 2
FAN STAGE 3
FAN STAGE 4
H G BYPASS
DISCHARGE LIMIT
LO AMB
DMND LMT/CWR
SUCTION LIMIT
10TR-1,2
ANTIRECYCLE
8TAS-1, 2, 3
FIELD SUPPLIED
SET POINT TABLE
A
TLW F
0.2
(UNLOAD)
(UNLOAD)
(UNLOAD)
360PSIG
230PSIG
240PSIG
250PSIG
260PSIG
80%
355PSIG
20.0°F
0.0
SEE TABLE
OPEN
165°F
B
0.0
30 %
(HOLD)
(HOLD)
(HOLD)
0.0
SEE TABLE
SEE TABLE
100 PSIG
140 PSIG
160 PSIG
170 PSIG
45%
345PSIG
SEE NOTE 11
0.0
SEE TABLE
1 SEC.
15 MIN.
CLOSE
175°F
%
ETHYLENE
GLYCOL
MIN.
LOW P.
[8B]
(PSIG)
MIN.
TLW
[1A]
(°F)
MIN.
FREEZE
[9B]
(°F)
0
10
20
30-60
58
52
41
30
42
37
28
20
38
24
24
9
%
PROPYLENE
GLYCOL
MIN.
LOW P.
[8B]
(PSIG)
MIN.
TLW
[1A]
(°F)
MIN.
FREEZE
[9B]
(°F)
0
10
20
30-60
58
51
43
32
42
37
29
20
38
32
25
14
WARNING
SUCTION
LIMIT
[18B]
(PSIG)
62
56
45
34
[18A]
(PSIG)
60
54
43
32
SUCTION
LIMIT
[18B]
(PSIG)
62
55
47
36
[18A]
(PSIG)
60
53
45
34
CHECK SETPOINTS BEFORE STARTING UNIT.
DO NOT SET THE SETPOINTS IN THE TABLE
TO A VALUE LOWER THAN THAT INDICATED
FOR YOUR GLYCOL CONCENTRATION. TO
DO SO WILL VOID THE WARRANTY.
5.0 MAINTENANCE ACDX-B/AUDX-B
5.1
General
As with all mechanical equipment, a program of regular
inspection, cleaning and preventive maintenance by trained
personnel will contribute greatly to the long satisfactory
service life of this product.
5.2
Periodic Inspection
Read essential temperatures and pressures periodically to see
that they indicate normal operation. It is a good idea to
record these readings on a log sheet. See sample, Section
4.10. If any abnormal operation is observed, try to determine
cause and remedy it. See Troubleshooting Guide, Section
4.9.
5.3
Monthly Inspection
Wipe down external surfaces of unit. Shut unit down, open
main disconnect, inspect control panel, checking for loose
wires, burned contacts, signs of overheated wires, etc. Restart
unit and check performance of controls. Check sight glasses
for proper refrigerant charge.
5.4
5.4.1
Vessel Maintenance
General
The efficient performance of the cooler and condenser heat
transfer surfaces is essential for efficient performance of your
packaged water cooling machine. If these surfaces
accumulate a film of dirt, scale or slime, their performance
efficiency will degrade substantially. The refrigerant side of
heat transfer surfaces does not foul, since refrigerant is a
good solvent and it is in a closed, filtered cycle. Water side
surfaces can foul from the water system. A program of water
treatment can slow the rate of fouling on heat transfer
surfaces, but not eliminate it.
5.4.2
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
5.5
Air Cooled Condenser
Cleaning ACDX-B/AUDX-B
The face of the condenser should be cleaned at least once a
month during operation. If conditions are bad the condensers
pick up dirt very quickly, it is suggested that they be cleaned
more frequently. If the condenser is allowed to get too dirty,
the unit will run a high head pressure and will not give
satisfactory performance.
Dirty coils can be cleaned using a soft brush or by flushing
with cool water or commerically available coil cleaners. DO
NOT USE HOT WATER OR STEAM. To do so will cause excessive
pressure in the system. The face of the condenser should be
cleaned at the beginning of the season and periodically
thereafter if conditions require.
5.6
Electrical Malfunction
The unit has four devices designed to protect compressor
motors and motor controllers from electrical malfunction:
customer supplied short circuit protection, circuit breakers
(optional, if available), under voltage relays (optional), solid
state motor over temperature protectors, and microcomputer
high amp protection.
If the undervoltage relay trips, it is a sign of trouble in
incoming power. If it trips again after resetting, call your
electric utility to investigate the problem. If circuit breaker
or motor over temperature protectors trip, this is a sign of
possible motor trouble. DO NOT reset and try to run
compressor again. Call authorized service representative to
check for motor trouble. Resetting these safety devices and
repeated starting could turn a minor motor problem into a
costly major motor burnout.
Cooler Cleaning ACDX-B or
Split-System Chiller
The effects of fouling can be detected by recording full load
performance data on the log sheet. If the difference between
the leaving water from the cooler and the saturated suction
temperature at the compressor is greater than the difference
recorded at clean conditions, the tubes should be cleaned.
It is generally advisable to clean the cooler water side surfaces
at least annually, and more often if severely foul water is
used. This cleaning must be done chemically.
In chemical cleaning, a caustic solution is pumped through
the heat exchanger, which attacks dirt, slime and mineral
deposits and flushes them away. Chemicals can be
recommended by water treatment specialists, but it is
important to rinse the system thoroughly after cleaning to
remove the chemicals before they attack the metal surfaces.
The cooler water side (shell side) cannot be physically cleaned
because of the cross-flow baffle construction.
79
5.0 MAINTENANCE ACDX-B/AUDX-B (CONT.)
5.7
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
Troubleshooting Guide
Corrective Action
Possible Causes
5.7.1 Chiller unit will not start
1.
2.
3.
4.
5.
Power off.
Main line open
Incorrect wiring
Loose terminals
Control circuit open
6.
Time delay
Check main disconnect switch
Check main fuses
Check the wiring diagram
Tighten all terminals
Check phase loss monitor, flow switch, circuit breakers, temperature
control, low ambient thermostat, low temperature, thermostat, remote
switch, etc.
Wait
5.7.2 Compressor hums but does not start
1.
Low voltage
a. Check at service and unit for loss
b. Consult power company
5.7.3 Compressor cuts out on low pressure safety control
1. Refrigerant shortage
2. Restriction in liquid line
3.
Low water flow through cooler
(or air flow through DX coil)
Check for leaks — add refrigerant
a. Plugged strainer — open or replace
b. Liquid line valve partially closed — open valves fully
c. Expansion valve clogged or inoperative — clean or replace as required
d. Solenoid valve partially open — clean or replace as required
Check water flow thru cooler and correct as required
5.7.4 Compressor cycles on high pressure control
1.
Compressor discharge valve partially
closed
2. Non-condensable gases in system
3.
Overcharge of refrigerant
4.
Dirty condenser
5.
Compressor discharge check valve not
operating properly
6.
Fans not running
Open valve fully
Operate condenser fans with compressors off.
If condenser pressure exceeds saturated pressure corresponding to
condenser entering air temperature, then reclaim air from the top of hot
gas header on the vertical header coil.
Reclaim refrigerant from system while in operation until head pressure
reaches a normal level.
Clean the condenser
Replace if necessary
Check pressure control setting
5.7.5 Causes and prevention of freeze-up
Causes
1. Improper charging
2. Improperly set safety time delay
3. Improper chilled water circulation
4.
Not draining for winter shutdown
5.
Improper pump shutdown
6.
Prevention
Charge per manufacturer’s recommendation
Check the safety time delay low pressure control for proper setting at the
beginning of each season.
Use an ample sized cleanable strainer in the chilled water circuit. Make
certain the strainer is clean to insure full flow and velocity of chilled water.
It may sometimes be necessary to treat the water to prevent formation of
deposits.
When the system is shut down for the tinter, remove the drain plugs and
drain the cooler. Blow out any remaining water with air.
Make sure chiller barrel heater is working and flow switch is installed per
wiring diagrams.
Make sure chiller barrel heater is working.
Low ambient during air conditioning
season
NOTES:
If the ambient temperature is below 32°F, freezing can be completely prevented by one of two methods:
1. Drain all water from the equipment.
2. Add anti-freeze to the water.
80
5.0 MAINTENANCE ACDX-B/AUDX-B (CONT.)
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
5.8 Sample Log Sheet
Sheet No.
Page 1 of 2
ACDXB / AUDXB 048 to 208
Screw Compressor Packaged Chiller or Condensing Unit
NAMEPLATE DATA:
UNIT SERIAL NO.
UNIT MODEL NO.
UNIT ELECTRICAL DATA:
VOLTS
3
PHASE
COMPRESSOR MODEL NO.
COMPRESSOR S.N.
COMPRESSOR MODEL NO.
COMPRESSOR S.N.
COMPRESSOR MODEL NO.
COMPRESSOR S.N.
START UP: DATE
HZ
, TIME
REPORT DATE
REPORT TIME
ELAPSED TIME METER COMPRESSOR 1
ELAPSED TIME METER COMPRESSOR 2
ELAPSED TIME METER COMPRESSOR 3
COOLER WATER TEMPERATURE - IN
COOLER WATER TEMPERATURE - OUT
COOLER PRESSURE DROP PSI/IN WATER
COOLER WATER FLOW (GPM)
CONDENSER AIR TEMPERATURE - IN (AMBIENT)
ACTUAL VOLTAGE
FAN AMPS
VOLTS
*Use Table 5.11 For Obtaining Saturated Temperature
This log sheet is provided as a recommendation of the readings that should be taken on a periodic basis. The actual readings
taken and the frequency will depend upon the unit’s applications, hours of use, etc. This type of information can prove very
useful in preventing and/or solving problems that might occur during the life of this unit.
81
5.0 MAINTENANCE ACDX-B/AUDX-B (CONT.)
5.8 Sample Log Sheet
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
Sheet No.
Page 2 of 2
Reciprocating Compressor Packaged Chiller
COMPR.
NO.
1
SUCTION PRESSURE
2
3
1
DISCHARGE PRESSURE
2
3
1
DISCHARGE TEMPERATURE
2
3
1
SUCTION TEMPERATURE
2
3
1
DISCHARGE SUPERHEAT
(DISCH. TEMP. — SAT. DISCH.)*
2
3
1
SUCTION SUPERHEAT
(SUCT. TEMP. — SAT. SUCT.)*
2
3
1
COMPRESSOR AMPS
2
3
82
5.0 MAINTENANCE ACDX-B/AUDX-B (CONT.)
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
5.9 Start-Up Check List
Date
YES
Unit Model No.
Setting Unit:
NO
a. Vibration isolator used
b. Spring isolator adjusted for equal height
c. If rubber-in-shear isolators are used, is unit leveled by
shimming
Wiring:
a.
b.
c.
d.
e.
f.
g.
h.
i.
j.
Piping:
a. Piping complies with applicable codes
b. External piping independently supported
c. Chilled water lines insulated
Power wiring complete
Control wiring complete
Separate chiller heater wiring complete
Electric service adequate for load
Power source voltage correct for motor(s) used
Motor circuit has proper size fusetrons
System wired per diagram
All lead connections tight
Wiring complies with local codes
Flow switch operation
Before Start-Up:
a. Open compressor discharge service valve (if supplied)
b. Open liquid valve(s)
c. Open suction, and discharge valves to pressure gauges
(if supplied)
d. Check rotation of all fan motors
e. Start auxiliary equipment (pumps, fans, etc.)
f. Is crankcase heater operating? Operate 24 hours prior to
unit start-up.
g. Check the compressor oil level through the crankcase sight
glass. The oil level should be 1/2 of the glass. If the level
is low, add oil in accordance with the directions in the
maintenance instructions
h. Check all control settings as specified on unit wiring diagram
i. Air purged from chilled water system
After Start-up:
a.
b.
c.
d.
e.
f.
Check
Check
Check
Check
Check
Check
high pressure control
oil temperature safety switch
and adjust low temperature freeze control
and adjust unit controller
and adjust low pressure control
and adjust expansion valve superheat
83
5.0 MAINTENANCE ACDX-B/AUDX-B (CONT.)
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
5.10 Temperature Pressure Table
Refrigerant 22 Pressure/Temperature Properties (PSIG-F)
84
PRES
TEMP
PRES
TEMP
PRES
TEMP
PRES
TEMP
PRES
TEMP
PRES
TEMP
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
-41.4
-38.8
-36.4
-34.1
-31.8
-29.7
-27.7
-25.7
-23.8
-22.0
-20.2
-18.5
-16.9
-15.3
-13.7
-12.2
-10.7
-9.2
-7.8
-6.4
-5.1
-3.8
-2.5
-1.2
0.0
1.2
2.4
3.6
4.8
5.9
7.0
8.1
9.2
10.2
11.3
12.3
13.3
14.3
15.3
16.2
17.2
18.1
19.1
20.0
20.9
21.8
22.6
23.5
24.4
25.2
26.1
26.9
27.7
28.5
29.3
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
30.1
30.9
31.7
32.4
33.2
33.9
34.7
35.4
36.1
36.9
37.6
38.3
39.0
39.7
40.4
41.0
41.7
42.4
43.0
43.7
44.3
45.0
45.6
46.3
46.9
47.5
48.1
48.7
49.4
50.0
50.6
51.2
51.7
52.3
52.9
53.5
54.1
54.6
55.2
55.8
56.3
56.9
57.5
58.0
58.6
59.1
59.7
60.3
90.8
61.3
61.8
62.4
62.9
63.4
63.9
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
64.4
64.9
65.4
65.9
66.4
66.9
67.4
67.9
68.3
68.8
69.3
69.8
70.2
70.7
71.2
71.7
72.1
72.6
73.0
73.5
74.0
74.4
74.9
75.3
75.8
76.2
76.6
77.1
77.5
78.0
78.4
78.8
79.3
79.7
80.1
80.5
81.0
81.4
81.8
82.2
82.6
83.0
83.4
83.9
84.3
84.7
85.1
85.5
85.9
86.3
86.7
87.1
87.5
87.9
88.3
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
88.6
89.0
89.4
89.8
90.2
90.6
91.0
91.3
91.7
92.1
92.5
92.8
93.2
93.6
93.9
94.3
94.7
95.0
95.4
95.8
96.1
96.5
96.9
97.2
97.6
97.9
98.3
98.6
99.0
99.3
99.7
100.0
100.4
100.7
101.1
101.4
101.7
102.1
102.4
102.8
103.1
103.4
103.8
104.1
104.4
104.8
105.1
105.4
105.7
106.1
106.4
106.7
107.0
107.4
107.7
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
108.0
108.3
108.6
109.0
109.3
109.6
109.9
110.2
110.5
110.8
111.2
111.5
111.8
112.1
112.4
112.7
113.0
113.3
113.6
113.9
114.2
114.5
114.8
115.1
115.4
115.7
116.0
116.3
116.6
116.9
117.2
117.5
117.8
118.1
118.3
118.6
118.9
119.2
119.5
119.8
120.1
120.3
120.6
120.9
121.2
121.5
121.8
122.0
122.3
122.6
122.9
123.1
123.4
123.7
124.0
276
278
280
282
284
286
288
290
292
294
296
298
300
302
304
306
308
310
312
314
316
318
320
322
324
326
328
330
332
334
336
338
340
342
344
346
348
350
352
354
356
358
360
362
364
366
368
370
372
374
376
378
380
124.5
125.1
125.6
126.1
126.7
127.2
127.7
128.3
128.8
129.3
129.8
130.3
130.9
131.4
131.9
132.4
132.9
133.4
133.9
134.4
134.9
135.4
135.9
136.4
136.8
137.3
137.8
138.3
138.8
139.2
139.7
140.2
140.7
141.1
141.6
142.1
142.5
143.0
143.4
143.9
144.3
144.8
145.2
143.7
146.1
146.6
147.0
147.5
147.9
148.3
148.8
149.2
149.6
5.0 MAINTENANCE ACDX-B/AUDX-B (CONT.)
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
5.11 Notes
85
January 2000
101 Burgess Road, Harrisonburg, VA 22801
Phone: (540) 434-0711 FAX (540) 432-6690
www.dunham-bush.com
Form No. 6122B
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