Packaged Rooftop Air Conditioners Voyager

Product Catalog
Packaged Rooftop Air Conditioners
Voyager™ Commercial with ReliaTel™Controls
27½ to 50 Tons - 60 Hz
22.9 to 41.7 Tons (81-148 kW) - 50 Hz
September 2012
RT-PRC033-EN
Introduction
Packaged Rooftop Air Conditioners
Through the years, Trane has designed and developed the most complete line of Packaged Rooftop
products available in the market today. Trane was the first to introduce the Micro—microelectronic
unit controls—and has continued to improve and revolutionize this design concept.
The ReliaTel™ control platform offers the same great features and functionality as the original
Micro, with additional benefits for greater application flexibility.
The Voyager™ Commercial line offers 27½ to 50 ton, 60 Hz and 23 to 42 ton 50 Hz models. Both
50 and 60 Hz models come in a choice of five sizes to meet the changing demands of the commercial
rooftop market.
Trane customers demand products that provide exceptional reliability, meet stringent performance
requirements, and are competitively priced. Trane delivers with Voyager Commercial.
Voyager Commercial features cutting edge technologies: reliable 3-D™ Scroll compressors, Trane
engineered ReliaTel controls, computer-aided run testing, and Integrated Comfort™ Systems.
So, whether you’re a contractor, the engineer, or an owner you can be certain Voyager Commercial
Products are built to meet your needs.
It’s Hard To Stop A Trane.®
Revision Summary
RT-PRC033-EN (28 September 2012)
•
Updated Modulating Gas Heat Turn Down Ratio
•
Updated General Data, Mechanical Specifications
© 2012 Trane All rights reserved
RT-PRC033-EN
Table of Contents
Features and Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Standard Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Optional Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Quality and Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Easy to Install, Service and Maintain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Rigorous Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
ReliaTel™ Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Conversionless Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Drum and Tube Heat Exchanger (Gas Heat Only) . . . . . . . . . . . . . . . . . . . 9
Low Ambient Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Microchannel Condenser Coils . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Phase Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Pressure Cutouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Single Point Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Sloped Drain Pans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Temperature Discharge Limit (TDL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Outstanding Optional Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Variable Frequency Drives (VFD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Single Zone VAV – An Ideal Energy Saving Solution for Yesterday’s “Constant Volume” Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Delivered VAV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
VariTrac™ Changeover-Bypass VAV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Power Exhaust Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Fresh Air Tracking Power Exhaust Option . . . . . . . . . . . . . . . . . . . . . . . . 12
Statitrac™ Direct Space Building Pressurization Control . . . . . . . . . . . . 12
Downflow and Horizontal Economizers . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Interoperability with BACnet (BCI-R) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Interoperability with LonTalk® (LCI-R) . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Trane Communication Interface (TCI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Modulating Hot Gas Reheat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Tool-Less Condenser Hail Guards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Trane Factory Built Roof Curbs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Motor Shaft Grounding Ring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
One of Our Finest Assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Application Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
60/50 Hz Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Exhaust Air Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Application Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Altitude Corrections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Acoustical Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Clearance Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Duct Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
15
15
16
17
17
18
Selection Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
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60 Hz Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Cooling Capacity Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Heating Capacity Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air Delivery Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unit Electrical Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unit Designation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
19
20
21
21
21
50 Hz Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Cooling Capacity Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Heating Capacity Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air Delivery Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unit Electrical Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unit Designation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22
24
25
25
25
Model Number Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
60 Hz Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
50 Hz Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
General Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Performance Adjustment Factors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Performance Data (60 Hz Units) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Performance Data (50 Hz Units) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
VAV Units Only—Sequence of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Supply Air Pressure Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Supply Air Temperature Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Zone Temperature Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
CV Units Only—Sequence of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Occupied Zone Temperature Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Single Zone VAV Units Only (SZ VAV)—Sequence of Operation . . . . . . . . . 77
Zone Temperature Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Control Sequences of Operation Common to CV, VAV, and SZ VAV . . . . . 79
Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Electrical Service Sizing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Dimensional Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Fresh Air, Power Exhaust Hoods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Field Installed Sensors—Variable Air Volume VAV . . . . . . . . . . . . . . . . . . . . 92
Field Installed Sensors—Constant Volume CV or Single Zone Variable Air Volume SZ VAV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Integrated Comfort™ System Sensors—CV, VAV, and SZ VAV . . . . . . . . . . 93
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Weights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Mechanical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Control Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Outside Air . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Exhaust Air . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Unit Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
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Features and Benefits
Standard Features
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R-410A refrigerant
•
Factory installed and commissioned ReliaTel™ controls
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Compressor lead-lag
•
Crankcase heaters
•
Emergency stop input
•
Frostat™ coil frost protection on all units
•
Occupied-Unoccupied switching
•
Phase monitor
•
Temperature discharge limit (TDL)
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Timed override activation
•
FC supply fans
•
Supply airflow proving
•
Supply air overpressurization protection on VAV units
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Dedicated downflow, horizontal, or mixed airflow configurations
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Trane 3-D™ Scroll compressors
•
Two inch standard efficiency filters
•
Sloped condensate drain pan
•
Cleanable, IAQ-enhancing, foil faced insulation on all interior surfaces exposed to the unit air
stream
•
cULus listing on standard options
Optional Features
6
•
CV, VAV, or SZ VAV Control
•
Variable frequency drives on VAV and SZ VAV units (with or without bypass)
•
Motors with Internal Shaft Grounding Ring
•
Discharge air temperature sensor (CV only)
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50% fresh air tracking power exhaust
•
100% fresh air tracking power exhaust
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50% power exhaust
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100% power exhaust
•
Barometric relief
•
Statitrac™ direct space pressure control
•
BACnet Communication Interface (BCI-R)
•
LonTalk® Communication Interface (LCI-R)
•
Trane Communication Interface (TCI)
•
Natural gas heat with single stage, two stage and modulating options
•
Two stage LP gas heat (kit only)
•
Stainless steel heat exchanger (gas heat only)
•
Electric heat
RT-PRC033-EN
Features and Benefits
•
Economizer with differential (comparative) enthalpy control
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Economizer with dry bulb control
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Economizer with reference enthalpy control
•
Manual fresh air damper
•
CO2 sensors for space comfort control (SCC) or discharge air control (DAC)
•
Ventilation override
•
Corrosion protected condenser coil
•
Factory installed condenser coil guards
•
Factory installed tool-less condenser hail guards
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Hinged service access
•
Factory mounted disconnect with external handle (non-fused)
•
Factory powered or field powered 15A GFI convenience outlet
•
MERV 8 high efficiency 2” or 4” throwaway filters
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MERV 14 high efficiency 4” filters
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Clogged filter switch
•
Modulating hot gas reheat
•
Remote potentiometer
•
Service valves
•
Sloped stainless steel evaporator coil drain pans
•
Through-the-base electrical provision
Quality and Reliability
Easy to Install, Service and Maintain
Because today’s owners are very cost-conscious when it comes to service and maintenance, the
Trane Voyager was designed with direct input from service contractors. This valuable information
helped to design a product that would get the service technician off the job quicker and save the
owner money.
Rigorous Testing
All of Voyager’s designs were rigorously rain tested at the factory to ensure water integrity. Actual
shipping tests are performed to determine packaging requirements. Units are test shipped around
the country. Factory shake and drop tested as part of the package design process to help assure
that the unit will arrive at your job site in top condition.
Rigging tests include lifting a unit into the air and letting it drop one foot, assuring that the lifting
lugs and rails hold up under stress. 100% coil leak test is performed at the factory. The evaporator
coil is pressure tested to 450 psig and the condenser coil at 650 psig.
All parts are inspected at the point of final assembly. Sub-standard parts are identified and rejected
immediately. Every unit receives a 100% unit run test before leaving the production line to make
sure it lives up to rigorous Trane requirements.
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Features and Benefits
ReliaTel™ Controls
ReliaTel controls provide unit control for heating, cooling and ventilating utilizing input from
sensors that measure outdoor and indoor temperature.
Quality and Reliability are enhanced through ReliaTel control and logic:
•
Prevents the unit from short cycling, considerably improving compressor life.
•
Ensures that the compressor will run for a specific amount of time which allows oil to return
for better lubrication, enhancing the reliability of the commercial compressor.
Voyager with ReliaTel reduces the number of components required to operate the unit, thereby
reducing possibilities for component failure.
ReliaTel Makes Installing and Servicing Easy
ReliaTel eliminates the need for field installed anti-shortcycle timer and time delay relays. ReliaTel
controls provide these functions as an integral part of the unit. The contractor no longer has to
purchase these controls as options and pay to install them.
The wiring of the low voltage connections to the unit and the zone sensors is as easy as 1-1, 2-2,
and 3-3. This simplified system makes it easier for the installer to wire.
ReliaTel Makes Testing Easy
ReliaTel requires no special tools to run the Voyager unit through its paces. Simply place a jumper
between Test 1 and Test 2 terminals on the Low Voltage Terminal Board and the unit will walk
through its operational steps automatically.
Note: The unit automatically returns control to the zone sensor after stepping through the test
mode a single time, even if the jumper is left on the unit.
As long as the unit has power and the “system on” LED is lit, ReliaTel is operational. The light
indicates that the controls are functioning properly. ReliaTel features expanded diagnostic
capabilities when utilized with Trane Integrated Comfort™ Systems. Some zone sensor options
have central control panel lights which indicate the mode the unit is in and possible diagnostic
information (dirty filters for example).
Other ReliaTel Benefits
The ReliaTel’s built-in anti-shortcycle timer, time delay relay and minimum “on” time control
functions are factory tested to assure proper operation. ReliaTel softens electrical “spikes” by
staging on fans, compressors and heaters. Intelligent Fallback is a benefit to the building occupant.
If a component goes astray, the unit will continue to operate at predetermined temperature
setpoint.
Intelligent Anticipation is a standard ReliaTel feature. It functions continuously as ReliaTel and zone
sensor(s) work together in harmony to provide much tighter comfort control than conventional
electro-mechanical thermostats.
Conversionless Units
The dedicated downflow, horizontal or mixed airflow configurations require no panel removal or
alteration time to convert in the field — a major cost savings during installation.
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Features and Benefits
Drum and Tube Heat Exchanger (Gas Heat Only)
Forced Combustion Blower
Negative Pressure
Gas Valve
Hot Surface Ignitor
The drum and tube heat exchanger is designed for increased efficiency and reliability and utilizes
the same technology that has been incorporated into large commercial roof top units for over 20
years.
The heat exchanger is manufactured using optional stainless, or standard aluminized, steel with
stainless steel components for maximum durability. The requirement for cycle testing of heat
exchangers is 10,000 cycles by ANSI Z21.47. This is the standard required by both cULus and AGA
for cycle test requirements. Trane requires the design to be tested to 2½ times this current standard.
The drum and tube design has been tested and passed over 150,000 cycles which is over 15 times
the current ANSI cycling requirements.
The regulated gas valve will not allow gas flow unless the combustion blower is operating. This
is one of the unique safety features of Voyager Commercial. The forced combustion blower
supplies pre-mixed fuel through a single stainless steel burner screen into a sealed drum where
ignition takes place. It is more reliable to operate and maintain than a multiple burner system.
The hot surface ignitor is a gas ignition device which doubles as a safety device utilizing a
continuous test to prove the flame. The design is cycle tested at the factory for quality and
reliability.
All the gas/electric rooftops exceed all California seasonal efficiency requirements. They also
perform better than required to meet the California NOx emission requirements.
Low Ambient Cooling
All Voyager Commercial units have cooling capabilities down to 0°F as standard.
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Features and Benefits
Microchannel Condenser Coils
Due to flat streamlined tubes with small ports,
and metallurgical tube-to-fin bond,
microchannel coil has better heat transfer
performance.
Microchannel condenser coil can reduce
system refrigerant charge by up to 50%
because of smaller internal volume, which
leads to better compressor reliability. Compact
all-aluminum microchannel coils also help to
reduce the unit weight.
All-aluminum construction improves recyclability. Galvanic corrosion is also
minimized due to all-aluminum construction.
Strong aluminum brazed structure provides
better fin protection. In addition, flat
streamlined tubes also make microchannel
coils more dust resistant and easier to clean.
Phase Monitor
Voyager features a three-phase line monitor module that protects against phase loss, phase
reversal and phase unbalance. It is intended to protect compressors from reverse rotation. It has
an operating input voltage range of 190–600 Vac, and LED indicators for ON and FAULT. There are
no field adjustments and the module will automatically reset from a fault condition.
Pressure Cutouts
Low and high pressure cutouts are standard on all models.
Single Point Power
A single electrical connection powers the unit.
Sloped Drain Pans
Every unit has a non-corrosive, sloped drain pan made of pre-painted steel and standard on all
units.
Temperature Discharge Limit (TDL)
A bi-metal element discharge line thermostats is installed as a standard feature on the discharge
line of each system. This standard option provides extra protection to the compressors against high
discharge temperatures in case of loss of charge, extremely high ambient and other conditions
which could drive the discharge temperature higher.
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Features and Benefits
Outstanding Optional Features
Variable Frequency Drives (VFD)
Variable Frequency Drives are factory installed and tested to provide supply fan motor speed
modulation, as well as modulating gas heat. VFD’s on the supply fan, as compared to inlet guide
vanes or discharge dampers, are quieter, more efficient, and are eligible for utility rebates. The
VFD’s are available with or without a bypass option. Bypass control will simply provide full nominal
airflow in the event of drive failure.
Modulating gas heat models with VFD's allow tighter space temperature control with less
temperature swing.
Single Zone VAV – An Ideal Energy Saving Solution for Yesterday’s “Constant Volume”
Systems
Single zone VAV is designed for use in single zone applications like gymnasiums, auditoriums,
manufacturing facilities, retail box stores, and any large open spaces, where there is a lot of
diversity in the load profile. Single Zone VAV (SZ VAV) is an ideal replacement to “yesterday’s”
constant volume (CV) systems, by reducing operating costs while improving occupant comfort.
SZ VAV systems combine Trane application, control and system integration knowledge to exactly
match fan speed with cooling and heating loads, regardless of the operating condition. Trane
algorithms meet/exceed ASHRAE 90.1- 2010, SZ VAV energy-saving recommendations, and those
of CA Title 24. The result is an optimized balance between zone temperature control and system
energy savings. Depending on your specific application, energy savings can be as much as 20+%.
Note: Building system modeling in energy simulation software like TRACE is recommended to
evaluate performance improvements for your application.
SZ VAV is fully integrated into the ReliaTel Control system and is available today. It provides the
simplest and fastest commissioning in the industry through proven factory-installed, wired, and
tested system controllers. All control modules, logic and sensors are factory installed, and tested
to assure the highest quality and most reliable system available. This means no special
programming of algorithms, or hunting at the jobsite for sensors, boards, etc. that need to be
installed in the field. Single zone VAV is a quick and simple solution for many applications and is
available from your most trusted rooftop VAV system solution provider- Trane.
Delivered VAV
Trane provides true pressure independent variable air volume with Voyager Commercial delivered
VAV. The system is auto-configured to reduce programming and set-up time on the job. Generally
available only on sophisticated larger models, this Voyager Commercial system can economically
handle comfort requirements for any zone in the facility.
The system consists of:
•
Voyager™ Commercial VAV packaged rooftops
•
Up to 32 VariTrane™ VAV boxes with DDC (direct digital controls)
•
VariTrac™ Central Control Panel (CCP) with Operator Display (OD)
The VariTrac Central Control Panel acts as a communications hub by coordinating the actions of
the VAV rooftop and the VAV boxes. Single duct or fan powered VAV boxes are available, along with
an option for factory-installed local heat. For more details, see VAV-SLM003-EN.
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Features and Benefits
VariTrac™ Changeover-Bypass VAV
For large commercial applications, Trane offers constant
volume (CV) Voyager Commercial models with a
changeover-bypass VAV system. For the most advanced
comfort management systems, count on Trane.
Power Exhaust Option
Provides exhaust of the return air when using an economizer to
maintain proper building pressurization. Great for relieving most
building overpressurization problems.
Fresh Air Tracking Power Exhaust Option
Provides exhaust of the return air to maintain proper building pressurization by proportionally
controlling the exhaust air to the economizer dampers; in other words, the exhaust damper
“tracks” the outside air damper position.
Statitrac™ Direct Space Building Pressurization Control
Trane's Statitrac™ control is a highly accurate and efficient method of maintaining building
pressure control with a large rooftop air conditioner. Statitrac space pressure control turns the
exhaust fans on and modulates exhaust dampers to maintain space pressure within the space
pressure deadband. Proper building pressurization eliminates annoying door whistling, doors
standing open, and odors from other zones.
Downflow and Horizontal Economizers
The economizers come with three control options:
dry bulb, enthalpy and differential enthalpy. The
photo shows the three fresh air hoods on the
horizontal discharge configuration.
12
RT-PRC033-EN
Features and Benefits
Interoperability with BACnet (BCI-R)
The Trane BACnet Control Interface (BCI-R) for Voyager Commercial offers a building automation
control system with outstanding interoperability benefits. BACnet, which is an industry standard,
is an open, secure and reliable network communication protocol for controls, created by American
Society of Heating, refrigerating and Air-Conditioning Engineers, Inc. (ASHRAE).
Interoperability allows application or project engineers to specify the best products of a given type,
rather than one individual supplier's entire system. It reduces product training and installation
costs by standardizing communications across products. Interoperable systems allow building
managers to monitor and control IntelliPak equipment with Tracer SC controls or a 3rd party
building automation system. It enables integration with many different building controls such as
access/intrusion monitoring, lighting, fire and smoke devices, energy management, and a wide
variety of sensors (temperature, pressure, light, humidity, occupancy, CO2 and air velocity).
Interoperability with LonTalk® (LCI-R)
The LonTalk Communication (LCI-R) for Voyager Commercial offers a building automation control
system with outstanding interoperability benefits. LonTalk, which is an industry standard, is an
open, secure and reliable network communication protocol for controls, created by Echelon
Corporation and adopted by the LonMark Interoperability Association. It has been adopted by
several standards, such as: EIA-709.1, the Electronic Industries Alliance (EIA) Control Network
Protocol Specification and ANSI/ASHRAE 135, part of the American Society of Heating,
Refrigeration, and Air-Conditioning Engineer’s BACnet control standard for buildings.
Interoperability allows application or project engineers to specify the best products of a given type,
rather than one individual supplier’s entire system. It reduces product training and installation
costs by standardizing communications across products.
Interoperable systems allow building managers to monitor and control Voyager Commercial
equipment with a Trane Tracer Summit™ or a 3rd party building automation system.
It enables integration with many different building controls such as access/intrusion monitoring,
lighting, fire and smoke devices, energy management, and a wide variety of sensors for
temperature, pressure, humidity and occupancy CO2. For additional information visit LonMark,
www.lonmark.org or Echelon, www.echelon.com.
Trane Communication Interface (TCI)
The TCI is available factory or field installed. When applied with ReliaTel, this module easily
interfaces with the Trane Integrated Comfort™ System.
Modulating Hot Gas Reheat
This option allows for increased outdoor air ventilation. It reduces humidity levels while increasing
comfort level in the air space. Cooling can operate without a demand for dehumidification. The hot
gas reheat coil and modulating valve are designed to deliver maximum reheat temperatures and
increase unit efficiency. This energy efficiency helps to meet local energy codes and ASHRAE
Standard 90.1 compliance.
RT-PRC033-EN
13
Features and Benefits
Figure 1. Modulating hot gas reheat option
Tool-Less Condenser Hail Guards
Tool-less condenser hail guards are available as a factory installed option to protect the unit
condenser coil from hail, debris damage and vandalism.
Trane Factory Built Roof Curbs
Available for all units.
Motor Shaft Grounding Ring
Motors with internal Shaft grounding rings can be used with VFDs to provide a conductive
discharge path away from the motor bearings to ground.
One of Our Finest Assets
Trane Commercial Sales Engineers are a support group that can assist you with:
14
•
Product
•
Application
•
Service
•
Training
•
Special Applications
•
Specifications
•
Computer Programs and more
RT-PRC033-EN
Application Considerations
60/50 Hz Units
Exhaust Air Options
When is it necessary to provide building exhaust?
Whenever an outdoor air economizer is used, a building generally requires an exhaust system. The
purpose of the exhaust system is to exhaust the proper amount of air to prevent over or underpressurization of the building.
A building may have all or part of its exhaust system in the rooftop unit. Often, a building provides
exhaust external to the air conditioning equipment. This external exhaust must be considered
when selecting the rooftop exhaust system.
Voyager™ Commercial rooftop units offer four types of exhaust systems:
1. 50% or 100% Power exhaust fan
2. 50% or 100% Fresh Air Tracking Power Exhaust Fan(s)
3. 100% Power Exhaust with Statitrac™ Building Pressure Control
4. Barometric relief dampers
Application Recommendations
Power Exhaust Fan (with or without Fresh Air Tracking)
The exhaust fan option is either a single fan for exhausting approximately half of the air-moving
capabilities of the supply fan system or dual fans for 100% exhaust. Either exhaust capability
arrangement is configured as an on/off non-modulating exhaust or an on/off exhaust with an
actuator controlled damper to track the position of the fresh air damper.
For non-100% air applications, the 50% non-tracking power exhaust fan generally should not be
selected for more than 40 to 50% of design supply airflow. Since it is an on/off non-modulating fan,
it does not vary exhaust cfm with the amount of outside air entering the building. Therefore, if
selected for more than 40 to 50% of supply airflow, the building may become under pressurized
when economizer operation is allowing lesser amounts of outdoor air into the building. If, however,
building pressure is not of a critical nature, the non-modulating exhaust fan may be sized for more
than 50% of design supply airflow. Consult Table 23, p. 52 and Table 24, p. 52 (60Hz) or Table 46,
p. 71 and Table 47, p. 72 (50Hz) for specific exhaust fan capabilities with Voyager Commercial units.
100% Power Exhaust with Statitrac™ Building Pressure Control
This control is available only with 100% power exhaust. The exhaust dampers are modulated in
response to building pressure. Statitrac, a differential pressure control system, uses a differential
pressure transducer to compare indoor building pressure to atmospheric pressure. The exhaust
fans are turned on when required to lower building static pressure to setpoint. The Statitrac control
system then modulates the exhaust dampers to control the building pressure to within the
adjustable, specified deadband that is set at the RTVM board. Economizer and return air dampers
are modulated independent of the exhaust dampers based on ventilation control and economizer
cooling requests.
Statitrac can only lower building pressure; it cannot raise it. To lower building pressure, Statitrac
exhausts air from the space using the power exhaust. To raise building pressure, more air must be
supplied to the space, as with economizer operation. Additional relief, such as a bathroom exhaust
fan or relief fan, as well as other units serving the space, will affect building pressure and must be
taken into account.
Barometric Relief Dampers
Barometric relief dampers consist of gravity dampers which open with increased building
pressure. As the building pressure increases, the pressure in the unit return section also increases,
RT-PRC033-EN
15
Application Considerations
opening the dampers and relieving air. Barometric relief may be used to provide relief for single
story buildings with no return ductwork and exhaust requirements less than 25%.
Altitude Corrections
The rooftop performance tables and curves of this catalog are based on standard air (.075 lbs/ft).
If the rooftop airflow requirements are at other than standard conditions (sea level), an air density
correction is needed to project accurate unit performance.
Figure 3, p. 40 shows the air density ratio at various temperatures and elevations. Trane rooftops
are designed to operate between 40° and 90°F leaving air temperature.
The procedure to use when selecting a supply or exhaust fan on a rooftop for elevations and
temperatures other than standard is as follows:
1. First, determine the air density ratio using Figure 3, p. 40.
2. Divide the static pressure at the nonstandard condition by the air density ratio to obtain the
corrected static pressure.
3. Use the actual cfm and the corrected static pressure to determine the fan rpm and bhp from the
rooftop performance tables or curves.
4. The fan rpm is correct as selected.
5. Bhp must be multiplied by the air density ratio to obtain the actual operating bhp.
In order to better illustrate this procedure, the following examples are used:
60 Hz
Consider a 30 ton rooftop unit that is to deliver 11,000 actual cfm at 1.50 inches total static pressure
(tsp), 55°F leaving air temperature, at an elevation of 5,000 ft.
1. From Figure 3, p. 40, the air density ratio is 0.86.
2. Tsp=1.50 inches/0.86=1.74 inches tsp.
3. From the performance tables: a 30 ton rooftop will deliver 11,000 cfm at 1.74 inches tsp at
632 rpm and 6.2 bhp.
4. The rpm is correct as selected — 632 rpm.
5. Bhp = 6.2 x 0.86 = 5.33.
Compressor MBh, SHR, and kW should be calculated at standard and then converted to actual
using the correction factors in Table 9, p. 40. Apply these factors to the capacities selected at
standard cfm so as to correct for the reduced mass flow rate across the condenser.
Heat selections other than gas heat will not be affected by altitude. Nominal gas capacity (output)
should be multiplied by the factors given in Table 10, p. 40 before calculating the heating supply
air temperature.
50 Hz
Consider a 29 ton (105 kW) rooftop unit that is to deliver 9,160 actual cfm (4323 L/s) at 1.50 inches
total static pressure (tsp) (38 mm, 373 Pa), 55°F (12.8°C) leaving air temperature, at an elevation of
5,000 ft (1524 m).
1. From Figure 3, p. 40, the air density ratio is 0.86.
2. Tsp = 1.50 inches/0.86 = 1.74 inches tsp. 374/.86 = 434 Pa.
3. From the performance tables: a 29-ton (105 kW) rooftop will deliver 9,160 cfm at 1.74 inches tsp
(4323 L/s at 434 Pa) at 618 rpm and 4.96 bhp (3.7 kW).
4. The rpm is correct as selected – 618 rpm.
5. Bhp = 4.96 x 0.86 = 4.27 bhp actual. kW = 3.7 x 0.86 = 3.18 kW
16
RT-PRC033-EN
Application Considerations
Compressor MBh, SHR, and kW should be calculated at standard and then converted to actual
using the correction factors in Table 9, p. 40. Apply these factors to the capacities selected at
standard cfm so as to correct for the reduced mass flow rate across the condenser.
Heat selections other than gas heat will not be affected by altitude. Nominal gas capacity (output)
should be multiplied by the factors given in Table 10, p. 40 before calculating the heating supply
air temperature.
Acoustical Considerations
Proper placement of rooftops is critical to reducing transmitted sound levels to the building. The
ideal time to make provisions to reduce sound transmissions is during the design phase. The most
economical means of avoiding an acoustical problem is to place the rooftop(s) away from
acoustically critical areas. If possible, rooftops should not be located directly above areas such as:
offices, conference rooms, executive office areas and classrooms. Instead, ideal locations might be
over corridors, utility rooms, toilets or other areas where higher sound levels directly below the
unit(s) are acceptable.
Several basic guidelines for unit placement should be followed to minimize sound transmission
through the building structure:
1. Never cantilever the compressor end of the unit. A structural cross member must support this
end of the unit.
2. Locate the unit center of gravity which is close to, or over, a column or main support beam.
3. If the roof structure is very light, roof joists must be replaced by a structural shape in the critical
areas described above.
4. If several units are to be placed on one span, they should be staggered to reduce deflection over
that span.
It is impossible to totally quantify the effect of building structure on sound transmission, since this
depends on the response of the roof and building members to the sound and vibration of the unit
components. However, the guidelines listed above are experience- proven guidelines which will
help reduce sound transmissions.
Clearance Requirements
The recommended clearances identified with unit dimensions should be maintained to assure
adequate serviceability, maximum capacity and peak operating efficiency. A reduction in unit
clearance could result in condenser coil starvation or warm condenser air recirculation. If the
clearances shown are not possible on a particular job, consider the following:
Do the clearances available allow for major service work such as changing compressors or coils?
Do the clearances available allow for proper outside air intake, exhaust air removal and condenser
airflow?
If screening around the unit is being used, is there a possibility of air recirculation from the exhaust
to the outside air intake or from condenser exhaust to condenser intake?
Actual clearances which appear inadequate should be reviewed with a local Trane sales engineer.
When two or more units are to be placed side by side, the distance between the units should be
increased to 150% of the recommended single unit clearance. The units should also be staggered
for two reasons:
1. To reduce span deflection if more than one unit is placed on a single span. Reducing deflection
discourages sound transmission.
2. To assure proper diffusion of exhaust air before contact with the outside air intake of adjacent
unit.
RT-PRC033-EN
17
Application Considerations
Duct Design
It is important to note that the rated capacities of the rooftop can be met only if the rooftop is
properly installed in the field. A well designed duct system is essential in meeting these capacities.
The satisfactory distribution of air throughout the system requires that there be an unrestricted and
uniform airflow from the rooftop discharge duct. This discharge section should be straight for at
least several duct diameters to allow the conversion of fan energy from velocity pressure to static
pressure.
When job conditions dictate elbows be installed near the rooftop outlet, the loss of capacity and
static pressure may be reduced through proper direction of the bend in the elbow. The high velocity
side of the rooftop outlet should be directed at the outside radius of the elbow rather than the
inside.
18
RT-PRC033-EN
Selection Procedure
60 Hz Units
Five Basic Areas
1. Cooling capacity
2. Heating capacity
3. Air delivery
4. Unit electrical requirements
5. Unit designation
Cooling Capacity Selection
1. Summer design conditions — 95 DB/76 WB, 95°F entering air to condenser.
2. Summer room design conditions — 76 DB/66 WB.
3. Total peak cooling load — 321 MBh (26.75 tons).
4. Total peak supply cfm — 12000 cfm.
5. External static pressure — 1.2 inches.
6. Return air temperatures — 80 DB/66 WB.
7.
Return air cfm — 10800 cfm.
8. Outside air ventilation cfm and load — 1200 cfm and 18.23 MBh (1.52 tons).
9. Unit accessories include:
a. Aluminized heat exchanger — high heat module.
b. 2” Hi-efficiency throwaway filters.
c. Economizer.
Step 1. A summation of the peak cooling load and the outside air ventilation load shows: 26.75
tons + 1.52 tons = 28.27 required unit capacity. From Table 12, p. 42, 30-ton unit capacity at
80 DB/67 WB, 95°F entering the condenser and 12,000 total peak supply cfm, is 353 MBh (29.4 tons).
Thus, a nominal 30 ton unit is selected.
Step 2. Having selected a nominal 30 ton unit, the supply fan and exhaust fan motor bhp must
be determined.
Supply Air Fan
Determine unit static pressure at design supply cfm (see Table 21, p. 50):
External static pressure = 1.20 inches
Heat exchanger = High Heat: 0.14 inches
High efficiency filter 2”= 0.23 inches
Indoor coil = 0.34 inches
Economizer = 0.07 inches
Unit total static pressure = 1.98 inches
Using total cfm of 12000 and total static pressure of 1.98 inches, Table 19, p. 47 shows 7.78 bhp with
676 rpm.
Step 3. Determine evaporator coil entering air conditions. Mixed air dry bulb temperature
determination.
Using the minimum percent of OA (1,200 cfm ÷ 12,000 cfm = 10 percent), determine the mixture
dry bulb to the evaporator. RADB +%OA (OADB - RADB) = 80 + (0.10) (95 - 80) = 80 + 1.5 = 81.5°F
RT-PRC033-EN
19
Selection Procedure
Approximate Wet Bulb Mixture Temperature
RAWB + OA (OAWB - RAWB) = 66 + (0.10) (76-66) = 68 + 1 = 67°F. A psychrometric chart can be used
to more accurately determine the mixture temperature to the evaporator coil.
Step 4.
Determine Total Required Unit Cooling Capacity
Required capacity = total peak load + O.A. load + supply air fan motor heat. From Figure 2, p. 22,
the supply air fan motor heat for 7.78 bhp = 22.1 MBh. Capacity = 321 + 18.23 + 22.1 = 361.3 MBh
(30.1 tons)
Step 5.
Determine Unit Capacity
From Table 12, p. 42 unit capacity at 81.5 DB. 67 WB entering the evaporator, 12000 supply air cfm,
95°F entering the condenser is 355 MBh (29.6 tons) 290 sensible MBh.
Step 6.
Determine Leaving Air Temperature
Unit sensible heat capacity, corrected for supply air fan motor heat 290 - 22.1 = 267.9 MBh.
Supply air dry bulb temperature difference = 267.9 MBh ÷ (1.085 x 12,000 cfm) = 20.6°F.
Supply air dry bulb: 81.5 - 20.6 = 60.9.
Unit enthalpy difference = 355 ÷ (4.5 x 12,000) = 6.57 Btu/lb.
Btu/lb leaving enthalpy = h (ent WB) = 31.62 Btu/lb.
Leaving enthalpy = 31.62 Btu/lb - 6.57 Btu/lb = 25.1 Btu/lb.
From Table 8, p. 39, the leaving air wet bulb temperature corresponding to an enthalpy of
25.1 Btu/lb = 58°F.
Leaving air temperatures = 60.9°F/58°F
Heating Capacity Selection
1. Winter outdoor design conditions—0°F.
2. Total return air temperature — 72°F.
3. Winter outside air minimum ventilation load and cfm — 1,200 cfm and 87.2 MBh.
4. Peak heating load 225 MBh.
Utilizing Unit selection in the Cooling Capacity Procedure
Mixed air temperature = RADB +%O.A. (OADB - RADB) = 72 + (0.10) (0-72) = 64.8°F.
Supply air fan motor heat temperature rise = 20,600 BTU ÷ (1.085 x 12,000) cfm = 1.6°F.
Mixed air temperature entering heat module = 64.8 + 1.6 = 66.4°F.
Total winter heating load = peak heating + ventilation load - total fan motor heat = 225 + 87.2 - 22.1
= 290.1 MBh.
Electric Heating System
Unit operating on 480/60/3 power supply. From Table 17, p. 46, kw may be selected for a nominal
30-ton unit operating on 480-volt power. The high heat module — 90 KW or 307 MBh will satisfy
the winter heating load of 290.1 MBh.
Table 17, p. 46 also shows an air temperature rise of 23.6°F for 12,000 cfm through the 90 kw heat
module.
20
RT-PRC033-EN
Selection Procedure
Unit supply temperature at design heating conditions = mixed air temperature + air temperature
rise = 66.4 + 23.6 = 90°F.
Natural Gas Heating System
Assume natural gas supply — 1000 Btu/ft3. From Table 18, p. 46 select the high heat module (486
MBh output) to satisfy 290.1 at unit cfm.
Table 18, p. 46 also shows air temperature rise of 37.3°F for 12,000 cfm through heating module.
Unit supply temperature design heating conditions = mixed air temperature + air temperature rise
= 66.4 + 37.3 = 103.7°F.
Hot Gas Reheat Dehumidification Selection
The hot gas reheat option allows for increased outdoor air ventilation. It reduces humidity levels
while increasing comfort level in the air space.
Note: Please note that hot gas reheat operation will not be allowed when there is a call for cooling
or heating.
Utilize the Trane TOPSS™selection program or contact a local Trane sales office to calculate leaving
unit air temperature, latent capacity, reheat sensible capacity, leaving unit dew point, and moisture
removal when the unit is in hot gas reheat operation.
The hot gas reheat TOPSS selection requires the following customer input values: supply fan
airflow, ambient air temperatures, entering air temperatures, and a desired reheat set point
temperature. If the conditions provided are not within the reheat operating envelope an error will
be generated in the TOPSS program. If the reheat set point is not obtainable at the provided
conditions the customer will be required to make adjustments to the conditions or change the
reheat set point value.
Air Delivery Procedure
Supply air fan bhp and rpm selection. Unit supply air fan performance shown in Table 19, p. 47
includes pressure drops for dampers and casing losses. Static pressure drops of accessory
components such as heating systems, and filters if used, must be added to external unit static
pressure for total static pressure determination.
The supply air fan motor selected in the previous cooling capacity determination example was 7.78
bhp with 676 rpm. Thus, the supply fan motor selected is 7.5 hp.
To select the drive, enter Table 22, p. 51 for a 30-ton unit. Select the appropriate drive for the
applicable rpm range. Drive selection letter C with a range of 650 rpm, is required for 676 rpm.
Where altitude is significantly above sea level, use Table 9, p. 40, Table 10, p. 40 and Figure 3, p. 40
for applicable correction factors.
Unit Electrical Requirements
Selection procedures for electrical requirements for wire sizing amps, maximum fuse sizing and
dual element fuses are given in the electrical service selection of this catalog.
Unit Designation
After determining specific unit characteristics utilizing the selection procedure and additional job
information, the complete unit model number can be developed using the model number
nomenclature page.
RT-PRC033-EN
21
Selection Procedure
Figure 2. Fan motor heat
STANDARD
MOTOR
B
HIGH
EFFICIENCY MOTOR
C
120
FAN MOTOR HEAT - MBH
110
100
90
80
70
60
50
40
30
20
10
0
0
5
10
15
20
25
30
35
40
MOTOR BRAKE HORSE POWER
50 Hz Units
Five basic areas
1. Cooling capacity
2. Heating capacity
3. Air delivery
4. Unit electrical requirements
5. Unit designation
Cooling Capacity Selection
1. Summer design conditions – 95 DB/76 WB (35/24.4°C), 95°F (35°C) entering air to condenser.
2. Summer room design conditions – 76 DB/66 WB (24.4/18.9°C).
3. Total peak cooling load – 270 MBh (79 kW) (22.5 tons).
4. Total peak supply cfm – 10,000 cfm (4720 L/s).
5. External static pressure – 1.24 inches wc (310 Pa).
6. Return air temperatures – 80 DB/66°F WB (26.7/18.9°C).
7.
Return air cfm – 3540 cfm (1671 L/s).
8. Outside air ventilation cfm and load – 1000 cfm and 15.19 MBh (1.27 tons or 4.45 kW) 472 L/s.
9. Unit accessories include:
a. Aluminized heat exchanger – high heat module.
b. 2” Hi-efficiency throwaway filters.
c. Exhaust fan.
d. Economizer cycle.
22
RT-PRC033-EN
Selection Procedure
Step 1.
A summation of the peak cooling load and the outside air ventilation load shows: 22.5 tons + 1.27
tons = 23.77 (79 kW + 4.45 kW = 83.45) required unit capacity. From Table 27, p. 55, 25.4 ton (89 kW)
unit capacity at 80 DB/67 WB (27/19°C), 95°F entering the condenser and 10,000 total peak supply
cfm (4720 L/s) is 297 MBh (24.75 tons).
Step 2.
Having selected the correct unit, the supply fan and exhaust fan motor bhp must be determined.
Supply Air Fan
Using Table 44, p. 70, determine unit static pressure at design supply cfm:
External static pressure = 1.24 inches (310 Pa)
Heat exchanger = 0.12 inches (30 Pa)
High efficiency filter 2” (50 mm) = 0.18 inches (45 Pa)
Economizer = 0.07 inches (17 Pa)
Unit total static pressure = 1.61 inches (402 Pa)
Using total cfm of 10,000 (4720 L/s) and total static pressure of 1.61 inches (41 mm), enter Table 40,
p. 66. Table 40 shows 5.11 bhp (3.8 kW) with 601 rpm.
Step 3.
Determine evaporator coil entering air conditions. Mixed air dry bulb temperature determination.
Using the minimum percent of OA (1,000 cfm ÷ 10,000 cfm = 10 percent), determine the mixture
dry bulb to the evaporator. RADB +% OA
(OADB - RADB) = 80 + (0.10) (95 - 80) = 80 + 1.5 = 81.5°F [26.7 + 1.5 = 28°C).
Approximate Wet Bulb Mixture Temperature
RAWB + OA (OAWB - RAWB) = 66 + (0.10) (76-66) = 68 + 1 = 67°F.
A psychrometric chart can be used to more accurately determine the mixture temperature to the
evaporator coil.
Step 4.
Determine Total Required Unit Cooling Capacity
Required capacity = total peak load + O.A. load + supply air fan motor heat. From Figure 2, p. 22,
the supply air fan motor heat for 5.11 bhp = 14 MBh. Capacity = 270 + 15 + 14 = 299 MBh (89 kW)
Step 5.
Determine Unit Capacity
From Table 27, p. 55 unit capacity at 81.5 DB/67 WB entering the evaporator, 10,000 supply air cfm,
95°F (35°C) entering the condenser about 298 MBh (87 kW) with 243 MBh (71.1 kW) sensible.
Step 6.
Determine Leaving Air Temperature
Unit sensible heat capacity, corrected for supply air fan motor heat 243 - 14 = 229 MBh (67 kW).
Supply air dry bulb temperature difference = 229 MBh ÷ (1.085 x 10,000 cfm) = 21.1°F (-6.1°C)
Supply air dry bulb: 81.5-21.1 = 60.4 (15.8°C)
Unit enthalpy difference = 298 ÷ (4.5 x 10,000) = 6.62
Btu/lb leaving enthalpy = h (ent WB) = 31.62
Leaving enthalpy = 31.62 Btu/lb - 6.62 Btu/lb = 25 Btu/lb.
RT-PRC033-EN
23
Selection Procedure
From Table 8, p. 39, the leaving air wet bulb temperature corresponding to an enthalpy of 25 Btu/
lb = 57.8ºF (14.3ºC).
Leaving air temperatures = 60.4 DB/57.8 WB (15.8/14.3°C).
Heating Capacity Selection
1. Winter outdoor design conditions – 0°F (-17.8°C).
2. Total return air temperature – 72°F (22.2°C).
3. Winter outside air minimum ventilation load and cfm – 1,000 cfm and 87.2 MBh.
4. Peak heating load 150 MBh.
Utilizing unit selection in the cooling capacity procedure.
Mixed air temperature = RADB +% O.A. (OADB - RADB) = 72 + (0.10) (0-72) = 64.8°F.
Supply air fan motor heat temperature rise = 20,600 Btu ÷ (1.085 x 10,000) cfm= 1.9°F.
Mixed air temperature entering heat module = 64.8 + 1.9 = 66.7°F.
Total winter heating load = peak heating + ventilation load - total fan motor heat = 150 + 87.2 - 14
= 223.2 MBh.
Electric Heating System
Unit operating on 415 power supply. From Table 35, p. 63, kW may be selected for TC*305 unit to
satisfy the winter heating load. The 67 kW module will do the job.
Table 35, p. 63 also shows an air temperature rise of 21.2°F for 10,000 cfm through the 67 kW heat
module.
Unit supply temperature at design heating conditions = mixed air temperature + air temperature
rise = 66.7 + 21.2 = 87.9°F.
Natural Gas Heating System
Assume natural gas supply – 1000 Btu/ft3. From Table 38, p. 63, select the low heat module
(243 MBh output) to satisfy 223 at unit cfm.
Table 38, p. 63 also shows air temperature rise of 37.3°F for 10,000 cfm through heating module.
Unit supply temperature design heating conditions = mixed air temperature + air temperature rise
= 66.7 + 37.3 = 104.0°F.
Hot Gas Reheat Dehumidification Selection
The hot gas reheat option allows for increased outdoor air ventilation. It reduces humidity levels
while increasing comfort level in the air space.
Note: Please note that hot gas reheat operation will not be allowed when there is a call for cooling
or heating.
Utilize the Trane TOPSS™selection program or contact a local Trane sales office to calculate leaving
unit air temperature, latent capacity, reheat sensible capacity, leaving unit dew point, and moisture
removal when the unit is in hot gas reheat operation.
The hot gas reheat TOPSS selection requires the following customer input values: supply fan
airflow, ambient air temperatures, entering air temperatures, and a desired reheat set point
temperature. If the conditions provided are not within the reheat operating envelope an error will
be generated in the TOPSS program. If the reheat set point is not obtainable at the provided
conditions the customer will be required to make adjustments to the conditions or change the
reheat set point value.
24
RT-PRC033-EN
Selection Procedure
Air Delivery Procedure
Supply air fan bhp and rpm selection. Unit supply air fan performance shown in Table 39, p. 64,
Table 40, p. 66, Table 41, p. 67, and Table 42, p. 68 includes pressure drops for dampers and casing
losses. Static pressure drops of accessory components such as heating systems, and filters if used,
must be added to external unit static pressure for total static pressure determination.
The supply air fan motor selected in the previous cooling capacity determination example was 5.11
bhp with 601 rpm. Thus, the supply fan motor selected is 7.5 hp.
To select the drive, enter Table 45, p. 71 for a 25.4 unit. Select the appropriate drive for the
applicable rpm range. Drive selection letter D with a range of 583 rpm, is required for 601 rpm.
Where altitude is significantly above sea level, use Table 9, p. 40, Table 10, p. 40 and Figure 3, p. 40
for applicable correction factors.
Unit Electrical Requirements
Selection procedures for electrical requirements for wire sizing amps, maximum fuse sizing and
dual element fuses are given in the electrical service selection of this catalog.
Unit Designation
After determining specific unit characteristics utilizing the selection procedure and additional job
information, the complete unit model number can be developed using the model number
nomenclature page.
RT-PRC033-EN
25
Model Number Descriptions
Y
C
D
3
3
0
B
E
L
A
0
A
1
1
2
3
4
5
6
7
8
9
10
11
12
13
60 Hz Description
Digit 1, 2 — Unit Function
TC =
TE =
YC =
DX Cooling, No Heat
DX Cooling, Electric Heat
DX Cooling, Natural Gas Heat
Digit 3 — Unit Airflow Design
D
H
F
=
=
=
R
=
Downflow Supply and Return
Horizontal Supply and Return
Horizontal Supply and Upflow
Return
Downflow Supply and Horizontal
Return
Digit 4, 5, 6 — Nominal Cooling
Capacity
330 =
360 =
420 =
480 =
600 =
27½ Tons
30 Tons
35 Tons
40 Tons
50 Tons
Digit 7 — Major Development
Sequence
B
=
R-410A Refrigerant
Digit 8 — Power Supply1
E
F
4
5
=
=
=
=
208/60/3
230/60/3
460/60/3
575/60/3
Digit 9 — Heating Capacity4
0
L
H
J
=
=
=
=
K
=
M =
P
R
T
26
=
=
=
No Heat (TC only)
Low Heat (YC only)
High Heat (YC only)
Low Heat-Stainless Steel Gas
Heat Exchanger (YC only)
High Heat-Stainless Steel Gas
Heat Exchangers (YC only)
Low Heat-Stainless Steel Gas
Heat Exchanger w/
Modulating control
(27.5-35 ton YC only)
High Heat-Stainless Steel Gas
Heat Exchangers w/
Modulating control
(27.5-35 ton YC only)
Low Heat-Stainless Steel Gas
Heat Exchanger w/
Modulating control
(40-50 ton YC only)
High Heat-Stainless Steel Gas
Heat Exchangers w/
Modulating control
(40-50 ton YC only)
Note: When second digit is “E” for
Electric Heat, the following values
apply in the ninth digit.
A = 36 kW (27 kW for 208v)
B = 54 kW (41 kW for 208v)
C = 72 kW
D = 90 kW
E = 108 kW
Digit 10 — Design Sequence
E
=
F
=
G
=
H
=
Digit 16 — System Control
1
=
Digit 11 — Exhaust6
2
=
0
1
=
=
4
=
2
=
5
=
3
=
4
=
6
=
7
=
5
=
A
=
6
=
B
=
C
=
D
=
A
=
First
None
Barometric Relief (Available
w/ Economizer only)
100% Power Exhaust Fan
(Available w/ Economizer only)
50% Power Exhaust Fan
(Available w/ Economizer only)
100% Fresh Air Tracking Power
Exhaust Fan (Available
w/ Economizer only)
50% Fresh Air Tracking Power
Exhaust Fan (Available
w/ Economizer only)
100% Power Exhaust w/
Statitrac™
Digit 12 — Filter
A
=
B
=
C
=
D
=
2” MERV 4, Std Eff, Throwaway
Filters
2” MERV 8, High Eff, Throwaway
Filters
4” MERV 8, High Eff, Throwaway
Filters
4” MERV 14, High Eff, Throwaway
Filters
Digit 13 — Supply Fan Motor, HP
1
2
3
4
=
=
=
=
0-100% Economizer,
Differential Enthalpy Control
“C” Option and Low Leak
Fresh Air Damper
“D” Option and Low Leak
Fresh Air Damper
“E” Option and Low Leak
Fresh Air Damper
Constant Volume w/Zone
Temperature Control
Constant Volume w/ Discharge Air
Control
VAV Supply Air Temperature
Control w/Variable Frequency
Drive w/o Bypass
VAV Supply Air Temperature
Control w/Variable Frequency
Drive and Bypass
Single Zone VAV w/VFD w/o
Bypass
Single Zone VAV w/VFD w/
Bypass
VAV Supply Air Temperature
Control w/VFD w/o Bypass w/
Motor Shaft Grounding Ring
VAV Supply Air Temperature
Control w/VFD w/Bypass w/Motor
Shaft Grounding Ring
Single Zone VAV w/VFD w/o
Bypass w/ Motor Shaft Grounding
Ring
Single Zone VAV w/VFD w/
Bypass w/Motor Shaft Grounding
Ring
Note: Zone sensors are not included
with option and must be ordered
as a separate accessory.
Miscellaneous Options
7.5 Hp
10 Hp
15 Hp
20 Hp
Digit 17
Digit 14 — Supply Air Fan Drive
Selections3
A
=
Service Valves2
Digit 18
B
=
Through the Base Electrical
Provision
A
=
550 RPM
H
=
500 RPM
B
=
600 RPM
J
=
525 RPM
Digit 19
C
=
650 RPM
K
=
575 RPM
C
D
=
700 RPM
L
=
625 RPM
E
=
750 RPM
M =
675 RPM
Digit 20
F
=
790 RPM
N
725 RPM
D
G
=
800 RPM
=
=
=
Digit 15 — Fresh Air Selection
A
B
C
=
=
=
D
=
No Fresh Air
0-25% Manual Damper
0-100% Economizer, Dry Bulb
Control
0-100% Economizer,
Reference Enthalpy Control
Non-Fused Disconnect Switch
w/External Handle
Factory-Powered 15A GFI
Convenience Outlet and
Non-Fused Disconnect Switch
w/External Handle
Digit 21
E
=
Field-Powered 15A GFI
Convenience Outlet
RT-PRC033-EN
Model Number Descriptions
Digit 22
F
=
Trane Communication
Interface (TCI)
Digit 23
G
=
Ventilation Override
Digit 24
H
=
Electric
KW
Heater
Rated 27/ 41/
Tons Voltage 36 54 72 90 108
Hinged Service Access
27½
to 35
Digit 25
H
J
=
=
Tool-less Condenser Hail Guards
Condenser Coil Guards
Digit 26
K
B
=
=
LCI (LonTalk)
BACnet Communications
Interface (BCI)
Digit 27
*
=
Unused Digit
Digit 28
M =
Stainless Steel Drain Pans
Digit 29 — Condenser Coil
Options
0
=
J
=
Standard Efficiency
Condenser Coil
Corrosion Protected Condenser
Coil
40
and
50
208
x
x
240
x
x
480
x
x
x
x
600
x
x
x
208
x
240
x
480
x
x
x
x
600
x
x
x
x
5. The service digit for each model
number contains 32 digits; all 32
digits must be referenced.
6. Ventilation override exhaust mode is
not available for the exhaust fan with
fresh air tracking power exhaust. VOM
is available for the exhaust fan
without fresh air tracking power
exhaust.
Digit 30-31 — Miscellaneous
Options
P
=
R
=
Discharge Temperature
Sensor
Clogged Filter Switch
Digit 32 — Dehumidification
Option
T
=
Modulating Hot Gas Reheat
Model Number Notes
1.
All voltages are across the line
starting only.
2. Option includes Liquid, Discharge,
Suction Valves.
3. Supply air fan drives A thru G are
used with 27½-35 ton units only and
drives H thru N are used with 40 & 50
ton units only.
4. Electric Heat KW ratings are based
upon voltage ratings of 208/240/480/
600 V. For a 240 V heater derated to
208 V, the resulting kW rating
decreases from 36 kW to 27 kW, and
from 54 kW to 41 kW. Voltage
offerings are as follows (see Table 17,
p. 46 for additional information):
RT-PRC033-EN
27
Model Number Descriptions
Y
C
D
2
7
5
B
C
L
A
0
A
1
1
2
3
4
5
6
7
8
9
10
11
12
13
50 Hz Description
Digit 12 – Filter
A
=
B
=
C
=
Digit 3 – Unit Airflow Design
D
=
D
H
F
=
=
=
Digit 13 – Supply Fan Motor, HP
R
=
Digits 1, 2 – Unit Function
TC =
TE =
YC =
DX Cooling, No Heat
DX Cooling, Electric Heat
DX Cooling, Natural Gas Heat
Downflow Supply and Return
Horizontal Supply and Return
Horizontal Supply and Upflow
Return
Downflow Supply and Horizontal
Return
Digits 4, 5, 6 – Nominal Cooling
Capacity
275 =
305 =
350 =
400 =
500 =
22.9 Tons (82 kW)
25.4 Tons (89 kW)
29.2 Tons (105 kW)
33.3 Tons (120 kW)
41.7 Tons (148 kW)
1
2
3
4
=
=
=
=
2” (51 MM) MERV 4, Std Eff,
Throwaway Filters
2” (51 MM) MERV 8, High Eff,
Throwaway Filters
4” (102 MM) MERV 8, High Eff,
Throwaway Filters
4” (102 MM) MERV 14, High Eff,
Throwaway Filters
7.5 Hp (5.6 kW)
10 Hp (7.5 kW)
15 Hp (10 kW)
20 Hp (15 kW)
C
=
D
=
Single Zone VAV w/VFD w/o
Bypass w/ Motor Shaft Grounding
Ring
Single Zone VAV w/VFD w/
Bypass w/Motor Shaft Grounding
Ring
Note: Zone sensors are not included
with option and must be ordered
as a separate accessory.
Miscellaneous Options
Digit 17
A
=
Service Valves2
Digit 18
B
=
Through the Base Electrical
Provision
Digit 14 – Supply Air Fan Drive
Selections3
Digit 19
A
C
=
458 RPM
H
=
417 RPM
=
Non-Fused Disconnect Switch
with External Handle
B
=
500 RPM
J
=
437 RPM
C
=
541 RPM
K
=
479 RPM
Digit 20
Digit 7 – Major Development
Sequence
D
=
583 RPM
L
=
521 RPM
D
E
=
625 RPM
M =
562 RPM
B
F
=
658 RPM
N
604 RPM
G
=
664 RPM
=
R-410A Refrigerant
Digit 8 – Power
C
D
=
=
Supply1
380/50/3
415/50/3
Digit 9 – Heating Capacity4
0
L
H
=
=
=
No Heat (TC only)
Low Heat (YC only)
High Heat (YC only)
Note: When second digit is “E” for
Electric Heat, the following values
apply in the ninth digit.
380V / 415V
A
B
C
D
E
=
=
=
=
=
23 kW / 27 kW
34 kW / 40 kW
45 kW / 54 kW
56 kW / 67 kW
68 kW / 81 kW
Digit 15 – Fresh Air Selection
A
B
C
=
=
=
D
=
E
=
F
=
G
=
H
=
1
=
A
2
=
4
=
=
First
0
1
=
=
2
=
3
=
4
=
5
=
6
=
28
None
Barometric Relief (Available
w/Economizer only)
100% Power Exhaust Fan
(Available w/ Economizer only)
50% Power Exhaust Fan
(Available w/ Economizer only)
100% Fresh Air Tracking Power
Exhaust Fan (Available
w/Economizer only)
50% Fresh Air Tracking Power
Exhaust Fan (Available
w/ Economizer only)
100% Power Exhaust w/
Statitrac™
No Fresh Air
0-25% Manual Damper
0-100% Economizer, Dry Bulb
Control
0-100% Economizer,
Reference Enthalpy Control
0-100% Economizer,
Differential Enthalpy Control
“C” Option and Low Leak
Fresh Air Damper
“D” Option and Low Leak
Fresh Air Damper
“E” Option and Low Leak
Fresh Air Damper
Digit 16 – System Control
Digit 10 – Design Sequence
Digit 11 – Exhaust6
=
5
=
6
=
7
=
A
=
B
=
Constant Volume w/ Zone
Temperature Control
Constant Volume w/ Discharge Air
Control
VAV Supply Air Temperature
Control w/Variable Frequency
Drive w/o Bypass
VAV Supply Air Temperature
Control w/Variable Frequency
Drive and Bypass
Single Zone VAV w/VFD w/o
Bypass
Single Zone VAV w/VFD w/
Bypass
VAV Supply Air Temperature
Control w/VFD w/o Bypass w/
Motor Shaft Grounding Ring
VAV Supply Air Temperature
Control w/VFD w/Bypass w/Motor
Shaft Grounding Ring
=
Factory-Powered 15A GFI
Convenience Outlet and
Non-Fused Disconnect Switch
with External Handle
Digit 21
E
=
Field-Powered 15A GFI
Convenience Outlet
Digit 22
F
=
Trane Communication
Interface (TCI)
Digit 23
G
=
Ventilation Override
Digit 24
H
=
Hinged Service Access
Digit 25
H
J
=
=
Tool-less Condenser Hail Guards
Condenser Coil Guards
Digit 26
K
B
=
=
LCI (LonTalk)
BACnet Communications
Interface (BCI)
Digit 27
*
=
Unused Digit
Digit 28
M =
Stainless Steel Drain Pans
Digit 29 — Condenser Coil
Options
0
=
J
=
Standard Efficiency
Condenser Coil
Corrosion Protected Condenser
Coil
RT-PRC033-EN
Model Number Descriptions
Digit 30-31 — Miscellaneous
Options
P
R
=
=
Discharge Temperature Sensor
Clogged Filter Switch
Digit 32 — Dehumidification
Option
T
=
Modulating Hot Gas Reheat
Model Number Notes
1.
All voltages are across-the-line
starting only.
2. Option includes Liquid, Discharge,
Suction Valves.
3. Supply air fan drives A thru G are
used with 22.9-29.2 ton (82-105 kW)
units only and drives H through N are
used with 33.3 and 41.7 ton (120-148
kW) units only.
4. Electric Heat kW ratings are based
upon voltage ratings of 380/415 V.
Heaters A, B, C, D are used with 22.929.2 ton (82-105 kW) units only and
heaters B, C, D, E are used with 33.341.7 ton (120-148 kW) units only.
5. The service digit for each model
number contains 32 digits; all 32
digits must be referenced.
6. Ventilation override exhaust mode is
not available for the exhaust fan with
fresh air tracking power exhaust. VOM
is available for the exhaust fan
without fresh air tracking power
exhaust.
RT-PRC033-EN
29
General Data
Table 1.
General data — 27½ - 30 tons (60 Hz)
27½ Ton
30 Ton
Cooling Performance1
Nominal Gross Capacity
323,000
353,000
Two Stage
Natural Gas Heat2,6
Heating Input (BTUH)
Modulating
Two Stage
Modulating
Low
High
Low
High
Low
High
Low
High
350,000
600,000
350,000
600,000
350,000
600,000
350,000
600,000
140,000
First Stage/Low Fire
250,000
425,000
140,000
140,000
250,000
425,000
140,000
Heating Output (BTUH)
283,500
486,000
283,500
486,000
283,500
486,000
283,500
486,000
First Stage/Low Fire
202,500
344,500
113,400
113,400
202,500
344,500
113,400
113,400
81.00
Steady State Efficiency (%)3
81.00
81.00
81.00
81.00
81.00
81.00
81.00
No. Burners
1
2
1
2
1
2
1
1
No. Stages/Turn down rate
2
2
2.5:1
5:1
2
2
2.5:1
5:1
Natural or LP (Two Stage only)
(min/max) 2.5/14.0
2.5/14.0
2.5/14.0
2.5/14.0
2.5/14.0
2.5/14.0
2.5/14.0
2.5/14.0
2.5/14.0
Gas Connection Pipe Size (in.)
3/4
1
3/4
1
3/4
1
3/4
1
Gas Supply Pressure (in. w.c.)
Electric Heat
kW Range4
Capacity Steps
27-90
27-90
2
2
2/Scroll/R-410A
2/Scroll/R-410A
Compressor
Number/Type/Refrigerant
Size (Nominal)
Unit Capacity Steps (%)
12/13
13
100/48
100/50
Microchannel
Microchannel
43.6
49.9
1
1
Outdoor Coil
Type
Face Area (sq. ft.)
Rows
Indoor Coil
Tube Size (in.) OD
3/8
3/8
Face Area (sq. ft.)
31.7
31.7
Rows/Fins Per Foot
3/180
3/180
Refrigerant Control
TXV
TXV
No. of Circuits
Drain Connection No./Size (in)
Type
Outdoor Fan Type
1
1
1/1.25
1/1.25
PVC
PVC
Propeller
Propeller
No. Used/Diameter
3/28.00
3/28.00
Drive Type/No. Speeds
Direct/1
Direct/1
CFM
25,800
25,800
No. Motors/HP/RPM
3/1.10/1125
3/1.10/1125
Indoor Fan Type
FC
FC
No. Used
Diameter/Width (in)
Drive Type/No. Speeds
No. Motors/HP Range
Motor RPM
Motor Frame Size
30
1
1
22.38/22.00
22.38/22.00
Belt/1
Belt/1
1/7.50-10.00
1/7.50-10.00
1760
1760
213/215T
213/215T
RT-PRC033-EN
General Data
Table 1.
General data — 27½ - 30 tons (60 Hz)
Exhaust Fan Type
Diameter (in)
Drive Type/No. Speeds/Motor Frame Size
Motor HP/RPM
27½ Ton
30 Ton
Propeller
Propeller
26.00
26.00
Direct/1/56
Direct/1/56
1.0/1140
1.0/1140
Throwaway
Throwaway
No./ Recommended Size (in)5
16/16 x 20 x 2
16/16 x 20 x 2
Min. Outside Air Temp for
Mechanical Cooling
0°F
0°F
Filters - Type Furnished
Notes:
1. Cooling Performance is rated at 95°F ambient, 80°F entering dry bulb, 67°F entering wet bulb. Gross capacity does not include the effect of fan motor
heat. Rated and tested in accordance with the Unitary Large Equipment certification program, which is based on ARI Standard 340/360-93.
2. Heating Performance limit settings and rating data were established and approved under laboratory test conditions using American National Standards
Institute standards. Ratings shown are for elevations up to 4,500 feet.
3. Steady State Efficiency is rated in accordance with DOE test procedures.
4. Maximum KW @ 208V = 41, @ 240V = 54. For Electric heat KW range per specific voltage, see Table 17, p. 46.
5. Filter dimensions listed are nominal. For actual filter and rack sizes see the Unit Installation, Operation, Maintenance Guide.
6. Standard gas furnaces: Second Stage is total heating capacity—Second Stage/First Stage; Modulating gas furnaces: High Fire is total heating
capacity—High Fire/Low Fire
RT-PRC033-EN
31
General Data
Table 2.
General data — 35 - 40 tons (60 Hz)
35 Ton
40 Ton
Cooling Performance1
Nominal Gross Capacity
407,000
475,000
Two Stage
Natural Gas Heat2,6
Heating Input (BTUH)
Modulating
Two Stage
Modulating
Low
High
Low
High
Low
High
Low
High
350,000
600,000
350,000
600,000
400,000
800,000
350,000
750,000
140,000
First Stage/Low Fire
250,000
425,000
140,000
140,000
300,000
600,000
140,000
Heating Output (BTUH)
283,500
486,000
283,500
486,000
324,000
648,000
283,500
607,500
First Stage/Low Fire
202,500
344,500
113,400
113,400
243,000
486,000
113,400
113,400
81.00
Steady State Efficiency (%)3
81.00
81.00
81.00
81.00
81.00
81.00
81.00
No. Burners
1
2
1
2
1
2
1
1
No. Stages/Turn Down Rate
2
2
2.5:1
5:1
2
2
2.5:1
5:1
3/4
1
1
3/4
1
Gas Supply Pressure (in. w.c.)
Natural or LP (Two Stage only) (min/max)
Gas Connection Pipe Size (in.)
2.5/14.0
3/4
2.5/14.0
3/4
1
Electric Heat
kW Range4
Capacity Steps:
27-90
41-108
2
2
2/Scroll/R-410A
2/Scroll/R-410A
Compressor
Number/Type/Refrigerant
Size (nominal)
Unit Capacity Steps (%)
13/15
13/20
100/47
100/60/40
Microchannel
Microchannel
49.9
51.2
1
2
Outdoor Coil
Type
Face Area
Rows
Indoor Coil
Tube Size (in.) OD
3/8
3/8
Face Area (sq. ft.)
31.7
36.7
Rows/Fins Per Foot
4/180
4/180
Refrigerant Control
TXV
TXV
No. of Circuits
Drain Connection No./Size (in)
Type
Outdoor Fan Type
1
2
1/1.25
1/1.25
PVC
PVC
Propeller
Propeller
No. Used/Diameter
3/28.00
4/28.00
Drive Type/No. Speeds
Direct/1
Direct/1
CFM
25,800
27,400
No. Motors/HP/RPM
3/1.10/1125
4/1.10/1125
Indoor Fan Type
FC
FC
No. Used
Diameter/Width (in)
Drive Type/No. Speeds
No. Motors/HP Range
Motor RPM
Motor Frame Size
32
1
1
22.38/22.00
25.00/25.00
Belt/1
Belt/1
1/7.50/10.00-15.00
1/10.00-15.00
1760
1760
213/215/254T
215/254T
RT-PRC033-EN
General Data
Table 2.
General data — 35 - 40 tons (60 Hz)
Exhaust Fan Type
Diameter (in)
Drive Type/No. Speeds/Motor Frame Size
Motor HP/RPM
35 Ton
40 Ton
Propeller
Propeller
26.00
28.00
Direct/1/56
Direct/1/56
1.0/1140
1.5/1140
Filters - Type Furnished
Throwaway
Throwaway
No./Recommended Size (in)5
16/16 x 20 x 2
17/16 x 20 x 2
0°F
0°F
Min. Outside Air Temp for Mechanical
Cooling
Notes:
1. Cooling Performance is rated at 95°F ambient, 80°F entering dry bulb, 67°F entering wet bulb. Gross capacity does not include the effect of fan
motor heat. Rated and tested in accordance with the Unitary Large Equipment certification program, which is based on ARI Standard 340/360-93.
2. Heating Performance limit settings and rating data were established and approved under laboratory test conditions using American National
Standards Institute standards. Ratings shown are for elevations up to 4,500 feet.
3. Steady State Efficiency is rated in accordance with DOE test procedures.
4. Maximum KW @ 208V = 41, @ 240V = 54. For Electric heat KW range per specific voltage, see Table 17, p. 46.
5. Filter dimensions listed are nominal. For actual filter and rack sizes see the Unit Installation, Operation, Maintenance Guide.
6. Standard gas furnaces: Second Stage is total heating capacity—Second Stage/First Stage; Modulating gas furnaces: High Fire is total heating
capacity—High Fire/Low Fire
RT-PRC033-EN
33
General Data
Table 3.
General data — 50 tons (60 Hz)
50 Ton
Cooling Performance1
Nominal Gross Capacity
588,000
Two Stage
Natural Gas Heat2,6
Heating Input (BTUH)
Modulating
Low
High
Low
High
400,000
800,000
350,000
750,000
First Stage/Low Fire
300,000
600,000
140,000
140,000
Heating Output (BTUH)
324,000
648,000
283,500
607,500
First Stage/Low Fire
243,000
486,000
113,400
113,400
81.00
81.00
81.00
81.00
No. Burners
1
2
1
1
No. Stages/Turn Down Rate
2
2
2.5:1
5:1
2.5/14.0
2.5/14.0
2.5/14.0
2.5/14.0
3/4
1
3/4
1
Steady State Efficiency (%)3
Gas Supply Pressure (in. w.c.)
Natural or LP (Two Stage only) (min/max)
Gas Connection Pipe Size (in.)
Electric Heat
kW Range4
Capacity Steps:
41-108
2
Compressor
Number/Type/Refrigerant
Size (nominal)
Unit Capacity Steps (%)
3/Scroll/R-410A
13/13/15
100/68/32
Outdoor Coil
Type
Face Area
Rows
Microchannel
65.4
2
Indoor Coil
Tube Size (in.) OD
3/8
Face Area (sq. ft.)
36.7
Rows/Fins Per Foot
5/180
Refrigerant Control
TXV
No. of Circuits
Drain Connection No./Size (in)
Type
Outdoor Fan Type
2
1/1.25
PVC
Propeller
No. Used/Diameter
4/28.00
Drive Type/No. Speeds
Direct/1
CFM
31,500
No. Motors/HP/RPM
4/1.10/1125
Indoor Fan Type
FC
No. Used
Diameter/Width (in)
Drive Type/No. Speeds
No. Motors/HP Range
Motor RPM
Motor Frame Size
34
1
25.00/25.00
Belt/1
1/10.00/15.00-20.00
1760
215/254/256T
RT-PRC033-EN
General Data
Table 3.
General data — 50 tons (60 Hz)
50 Ton
Exhaust Fan Type
Propeller
Diameter (in)
28.00
Drive Type/No. Speeds/Motor Frame Size
Motor HP/RPM
Direct/1/56
1.5/1140
Filters - Type Furnished
Throwaway
No./Recommended Size (in)5
17/16 x 20 x 2
Min. Outside Air Temp for Mechanical
Cooling
0°F
Notes:
1. Cooling Performance is rated at 95°F ambient, 80°F entering dry bulb, 67°F entering wet bulb. Gross capacity does not include the effect of fan motor
heat. Rated and tested in accordance with the Unitary Large Equipment certification program, which is based on ARI Standard 340/360-93.
2. Heating Performance limit settings and rating data were established and approved under laboratory test conditions using American National Standards
Institute standards. Ratings shown are for elevations up to 4,500 feet.
3. Steady State Efficiency is rated in accordance with DOE test procedures.
4. Maximum KW @ 208V = 41, @ 240V = 54. For Electric heat KW range per specific voltage, see Table 17, p. 46.
5. Filter dimensions listed are nominal. For actual filter and rack sizes see the Unit Installation, Operation, Maintenance Guide.
6. Standard gas furnaces: Second Stage is total heating capacity—Second Stage/First Stage; Modulating gas furnaces: High Fire is total heating
capacity—High Fire/Low Fire
Table 4.
Economizer outdoor air damper leakage (of rated airflow) (60 Hz)
P Across Dampers (in. WC)
0.5 (In.)
1.0 (In.)
Standard
1.5%
2.5%
Optional "Low Leak"
0.5%
1.0%
Note: Above data based on tests completed in accordance with AMCA Standard 500.
RT-PRC033-EN
35
General Data
Table 5.
General data — 22.9 - 25.4 tons (50 Hz)
TC/YC/TE*275 (22.9 Tons)
TC/YC/TE*305 (25.4 Tons)
277,000 (81.16 kW)
303,000 (88.78 kW)
2/Scroll/R-410A
2/Scroll/R-410A
Cooling Performance1
Nominal Gross Capacity
Compressor
Number/Type/Refrigerant
Size (Nominal Tons)
Unit Capacity Steps (%)
Natural Gas Heat2
Heating Input - Btu (kW)
First Stage
Heating Output - Btu (kW)
First Stage
10/11
11/11
100/48
100/50
Low
High
Low
High
290,000 (85.0)
500,000 (147)
290,000 (85.0)
500,000 (147)
250,000 (73.3 kW)
425,000 (125 kW)
250,000 (73.3 kW)
425,000 (125 kW)
234,900 (69.0)
405,000 (119)
234,900 (69.0)
405,000 (119)
202,500 (59.4 kW)
344,250 (101 kW)
202,500 (59.4 kW)
344,250 (101 kW)
Steady State Efficiency(%)3
81
81
No. Burners/No. Stages
1/2
1/2
0.75 (19)
0.75 (19)
Microchannel
Microchannel
43.6 (4.0)
49.9 (4.6)
1
1
Tube Size OD - in. (mm)
0.375 (9.5)
0.375 (9.5)
Face Area - sq ft (sq m)
31.7 (2.9)
31.7 (2.9)
Rows/Fins Per Foot
3/180
3/180
Refrigerant Control
TXV
TXV
1/1.25 (1/32)
1/1.25 (1/32)
Propeller
Propeller
Gas Connect Pipe Size - in. (mm)
Outdoor Coil
Type
Face Area - sq ft (sq m)
Rows
Indoor Coil
PVC Drain Connect No./Size - in. (mm)
Outdoor Fan Type
No. Used
Diameter - in. (mm)
Drive Type/No. Speeds
cfm (L/s)
No. Motors (rpm)
Motor- hp (kW)
Indoor Fan Type/No. Used
3
3
28.0 (711)
28.0 (711)
Direct/1
Direct/1
25,800 (12176)
25,800 (12176)
3 (940)
3 (940)
0.75 (0.56)
0.75 (0.56)
FC/1
FC/1
Diameter - in. (mm)
22.4 (568)
22.4 (568)
Width - in. (mm)
22.0 (559)
22.0 (559)
Drive Type
Belt
Belt
No. Speeds/No. Motors
1/1
1/1
7.5 (5.6)
7.5 (5.6)
1460/213T
1460/213T
Motor - hp (kW)
Motor rpm/Frame Size
Exhaust Fan Type
Diameter-in (mm)
Drive Type/No. Speeds/Motor Frame Size
Motor-HP (kW)/RPM
Filters - Type Furnished
No.
Recommended Size - in. (mm)
Propeller
Propeller
26.00(660)
26.00(660)
Direct/1/56
Direct/1/56
.75(.56)/950
75(.56)/950
Throwaway
Throwaway
16
16
16 x 20 x 2 (406 x 508 x 51)
16 x 20 x 2 (406 x 508 x 51)
Notes:
1. Cooling Performance is rated at 95°F (35°C) ambient, 80°F (27°C) entering dry bulb, 67°F (19°C) entering wet bulb. Gross capacity does not
include the effect of fan motor heat.
2. Heating Performance Limit settings and ratings data were established and approved under laboratory test conditions using American National
Standards.
3. Steady State Efficiency is rated in accordance with DOE test procedures.
36
RT-PRC033-EN
General Data
Table 6.
General data — 29.2 - 41.7 tons (50 Hz)
TC/YC/TE*350 (29.2 Tons)
TC/YC/TE*400 (33.3 Tons)
TC/YC/TE*500 (41.7 Tons)
353,000 (103.43 kW)
400,000 (117.2 kW)
500,000 (146.5 kW)
2/Scroll/R-410A
2/Scroll/R-410A
3/Scroll/R-410A
11/12
11/17
11/11/12
100/47
100/60/40
100/68/32
Cooling Performance1
Nominal Gross Capacity
Compressor
Number/Type/Refrigerant
Size (Nominal Tons)
Unit Capacity Steps (%)
Natural Gas Heat2
Low
High
500,000 (147)
Low
High
First Stage
250,000 (73.3 kW) 425,000 (125 kW) 300,000 (87.9 kW) 600,000 (176 kW) 300,000 (87.9 kW) 600,000 (176 kW)
271,350 (80.0)
670,000 (196)
High
290,000 (85.0)
405,000 (119)
335,000 (98.2)
Low
Heating Input - Btu (kW)
542,700 (159)
335,000 (98.2)
271,350 (79.5)
670,000 (196)
Heating Output - Btu (kW)
234,900 (69.0)
First Stage
202,500 (59.4 kW) 344,250 (101 kW) 243,500 (71.4 kW) 486,000 (143 kW) 243,500 (71.4 kW) 486,000 (143 kW)
542,700 (159)
Steady State Efficiency(%)3
81
81
81
No. Burners/No. Stages
1/2
1/2
1/2
0.75 (19)
0.75 (19)
0.75 (19)
Microchannel
Microchannel
Microchannel
49.9 (4.6)
51.2 (4.8)
65.4 (6.1)
1
2
2
Tube Size OD - in. (mm)
0.375 (9.5)
0.375 (9.5)
0.375 (9.5)
Face Area - sq ft (sq m)
31.7 (2.9)
36.7 (3.4)
36.7 (3.4)
Rows/Fins Per Foot
4/180
4/180
5/180
Refrigerant Control
TXV
TXV
TXV
1/1.25 (1/32)
1/1.25 (1/32)
1/1.25 (1/32)
Propeller
Propeller
Propeller
3
4
4
28.0 (711)
28.0 (711)
28.0 (711)
Gas Connect Pipe Size - in.
(mm)
Outdoor Coil
Type
Face Area - sq ft (sq m)
Rows/Fins Per Foot
Indoor Coil
PVC Drain Connect No./Size
- in. (mm)
Outdoor Fan Type
No. Used
Diameter - in. (mm)
Drive Type/No. Speeds
cfm (L/s)
No. Motors (rpm)
Motor- hp (kW)
Indoor Fan Type/No.
Used
Direct/1
Direct/1
Direct/1
25,800 (12176)
27,400 (12931)
31,500 (14866)
3 (940)
4 (940)
4 (940)
0.75 (0.56)
0.75 (0.56)
0.75 (0.56)
FC/1
FC/1
FC/1
Diameter - in. (mm)
22.4 (568)
25.0 (635)
25.0 (635)
Width - in. (mm)
22.0 (559)
25.0 (635)
25.0 (635)
Drive Type
Belt
Belt
Belt
No. Speeds/No. Motors
1/1
1/1
1/1
7.5 (5.6)
10.0 (7.5)
10.0 (7.5 kW)
1460/215T
Motor - hp (kW)
Motor rpm/Frame Size
1460/213T
1460/213T
Exhaust Fan Type
Propeller
Propeller
Propeller
Diameter-in (mm)
26.00(660)
28.00(711)
28.00(711)
Drive Type/No. Speeds/
Motor Frame Size
Motor-HP (kW)/RPM
Filters - Type Furnished
No.
Recommended Size - in.
(mm)
Direct/1/56
Direct/1/56
Direct/1/56
.75(.56)/950
1.0(.75)/950
1.0(.75)/950
Throwaway
Throwaway
Throwaway
16
17
17
16 x 20 x 2 (406 x 508 x 51)
16 x 20 x 2 (406 x 508 x 51)
16 x 20 x 2 (406 x 508 x 51)
Notes:
1. Cooling Performance is rated at 95°F (35°C) ambient, 80°F (27°C) entering dry bulb, 67°F (19°C) entering wet bulb. Gross capacity does not include the
effect of fan motor heat.
2. Heating Performance Limit settings and ratings data were established and approved under laboratory test conditions using American National Standards.
3. Steady State Efficiency is rated in accordance with DOE test procedures.
RT-PRC033-EN
37
General Data
Table 7.
Economizer outdoor air damper leakage (of rated airflow) (50 Hz)
P Across Dampers (In. WC) (Pa)
0.5 (In.) (124.5 Pa)
1.0 (In.) (249 Pa)
Standard
1.5%
2.5%
Optional “Low Leak”
0.5%
1.0%
Note: Above data based on tests completed in accordance with AMCA Standard 500.
38
RT-PRC033-EN
Performance Adjustment Factors
Table 8.
Enthalpy of saturated air
Wet Bulb Temperature
RT-PRC033-EN
°F
°C
Btu Per lb
40
4.4
15.23
41
5.0
15.70
42
5.5
16.17
43
6.1
16.66
44
6.7
17.15
45
7.2
17.65
46
7.8
18.16
47
8.3
18.68
48
8.9
19.21
49
9.4
19.75
50
10.0
20.30
51
10.6
20.86
52
11.1
21.44
53
11.7
22.02
54
12.2
22.62
55
12.8
23.22
56
13.3
23.84
57
13.9
24.48
58
14.4
25.12
59
15.0
25.78
60
15.6
26.46
61
16.1
27.15
62
16.7
27.85
63
17.2
28.57
64
17.8
29.31
65
18.3
30.06
66
18.9
30.83
67
19.4
31.62
68
20.0
32.42
69
20.6
33.25
70
21.1
34.09
71
21.7
34.95
72
22.2
35.83
73
22.8
36.74
74
23.3
37.66
75
23.9
38.61
39
Performance Adjustment Factors
Figure 3. Air density ratios
Table 9.
Cooling capacity altitude correction factors
Altitude ft. (m)
Sea Level
1000
(304.8)
2000
(609.6)
3000
(914.4)
4000
(1219.2)
5000
(1524.0)
6000
(1828.8)
7000
(2133.6)
Cooling Capacity
Multiplier
1.00
0.99
0.99
0.98
0.97
0.96
0.95
0.94
KW Correction Multiplier
(Compressors)
1.00
1.01
1.02
1.03
1.04
1.05
1.06
1.07
SHR Correction
Multiplier
1.00
0.98
0.95
0.93
0.91
0.89
0.87
0.85
115°F
(46.1°C)
114°F
(45.6°C)
113°F
(45.0°C)
112°F
(44.4°C)
111°F
(43.9°C)
110°F
(43.3°C)
109°F
(42.8°C)
108°F
(42.2°C)
Maximum Condenser
Ambient
Note: SHR = Sensible Heat Ratio
Table 10. Gas heating capacity altitude correction factors
Altitude ft. (m)
Capacity Multiplier
Sea Level
To 2000
2000 To
2500
2501 To
3500
(Sea Level
To 609.6)
(609.9 To
762.0)
(762.3 To
1066.8)
1.00
.92
.88
3501 To
4500
4501 To
5500
5501 To
6500
6501 To
7500
(1067.1 To (1371.9 To (1676.7 To (1981.5 To
1674.4)
1675.4)
1981.2)
2286.0)
.84
.80
.76
.72
Note: Correction factors are per AGA Std 221.30 – 1964, Part VI, 6.12. Local codes may supersede.
40
RT-PRC033-EN
Performance Data (60 Hz Units)
Table 11. 27½ ton gross cooling capacities (MBh)—3-row condenser coil—60 Hz
Ambient Temperature
85
Air
Ent
Flow
DB
95
105
Entering Wet Bulb Temperature
61
67
73
61
67
73
61
67
73
CFM (°F) TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
75
292
229
322
180
354
126
277
220
305
171
334
117
260
210
286
162
313
107
80
297
270
324
221
356
169
281
261
306
211
337
159
265
251
288
201
316
150
85
305
305
326
260
358
210
291
291
309
250
339
201
276
276
291
240
318
191
90
321
321
331
301
359
250
307
307
314
291
340
240
291
291
296
281
320
230
75
300
243
329
190
360
128
283
233
311
181
340
119
266
223
292
171
319
110
80
305
289
330
233
363
176
289
279
313
223
343
167
272
269
294
212
322
157
85
317
317
334
277
366
222
302
302
317
267
346
213
286
286
298
257
323
202
90
334
334
340
323
367
266
319
319
323
313
348
256
302
302
304
302
327
245
75
306
256
334
199
366
131
289
246
316
190
345
122
272
235
296
180
323
112
80
312
307
336
244
369
183
295
295
318
234
348
174
279
279
299
224
326
164
85
328
328
341
294
371
234
312
312
323
283
350
223
295
295
304
273
328
212
90
346
346
349
344
374
281
330
330
330
330
354
270
312
312
312
312
332
260
75
311
269
339
208
370
133
294
258
320
198
349
124
276
248
300
189
326
115
80
318
318
342
256
374
190
303
303
323
245
353
181
286
286
303
235
330
171
85
337
337
347
310
376
243
321
321
329
299
355
233
303
303
309
288
333
222
90
356
356
356
356
380
295
339
339
339
339
359
285
321
321
321
321
337
274
75
316
282
343
217
374
136
299
272
324
208
352
127
281
261
302
193
329
117
80
327
327
347
268
378
198
311
311
328
258
357
188
293
293
307
247
334
178
85
346
346
353
327
380
254
329
329
334
316
359
243
311
311
314
305
337
232
90
366
366
365
365
385
311
348
348
348
348
364
301
329
329
329
329
342
290
8000
9000
10000
11000
12100
Ambient Temperature
115
Air
Ent
Flow
DB
Entering Wet Bulb Temperature
61
67
73
CFM (°F) TGC
SHC
TGC
SHC
TGC
SHC
75
242
199
267
152
291
97.7
80
247
240
268
190
294
140
85
260
260
272
229
297
181
90
274
274
277
270
298
219
75
248
212
272
161
296
100
80
254
254
274
201
299
147
85
269
269
278
246
301
191
90
285
285
285
285
304
234
75
253
224
275
170
299
102
80
262
262
278
212
303
154
85
278
278
283
261
305
200
90
293
293
293
293
309
248
75
257
236
278
174
302
105
80
268
268
282
223
306
161
85
285
285
288
277
309
210
90
301
301
301
301
314
262
75
261
249
281
182
305
107 Notes:
80
275
275
286
235
308
165
85
291
291
291
291
312
220
90
308
308
308
308
318
277
8000
9000
10000
11000
12100
RT-PRC033-EN
1. All capacities shown are gross and have not considered indoor fan heat. To obtain net
cooling, subtract indoor fan heat.
2. TGC = Total gross capacity.
3. SHC = Sensible heat capacity.
41
Performance Data (60 Hz Units)
Table 12. 30 ton gross cooling capacities (Mbh)—4-row condenser coil—60 Hz
Ambient Temperature
85
Air
Ent
Flow
DB
95
105
Entering Wet Bulb Temperature
61
67
73
61
67
73
61
67
73
CFM (°F) TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
75
321
257
353
202
388
140
304
247
335
193
367
132
287
237
315
184
345
123
80
326
304
355
247
390
189
310
294
336
237
370
180
292
284
317
227
348
171
85
337
337
358
292
393
236
323
323
340
283
372
227
307
307
321
272
351
217
90
356
356
364
338
394
280
341
341
346
329
374
271
324
324
327
319
353
260
75
328
271
360
211
394
143
311
261
341
202
373
134
292
251
320
192
350
125
80
334
323
361
259
397
196
317
313
343
249
376
187
299
299
323
239
354
178
85
349
349
366
309
399
248
334
334
347
300
378
239
317
317
328
289
355
227
90
368
368
373
361
402
296
352
352
355
351
381
286
335
335
335
335
359
276
75
333
284
365
220
399
145
316
274
345
211
377
137
298
264
325
201
354
127
80
341
341
367
271
402
203
324
324
348
261
381
194
308
308
328
251
358
185
85
360
360
373
326
404
258
344
344
354
316
383
248
326
326
333
306
360
238
90
380
380
379
379
408
311
363
363
363
363
387
301
345
345
345
345
364
291
75
339
297
369
229
403
148
321
287
349
219
381
139
302
276
328
210
357
130
80
348
348
373
283
407
210
332
332
353
273
385
201
315
315
332
262
362
192
85
369
369
379
342
409
268
352
352
359
332
387
258
334
334
339
322
364
248
90
389
389
389
389
414
326
372
372
372
372
392
316
353
353
353
353
369
306
75
344
312
374
239
407
150
326
302
353
226
385
141
307
291
331
215
360
132
80
358
358
378
297
412
218
341
341
358
286
389
209
323
323
337
275
365
200
85
379
379
385
362
414
281
361
361
365
352
392
270
342
342
344
341
368
260
90
400
400
400
400
419
344
382
382
382
382
397
334
362
362
362
362
374
323
9000
10000
11000
12000
13200
Ambient Temperature
115
Air
Ent
Flow
DB
Entering Wet Bulb Temperature
61
67
73
CFM (°F) TGC
SHC
TGC
SHC
TGC
SHC
75
268
227
294
174
321
113
80
274
273
296
216
325
161
85
290
290
300
262
326
206
90
306
306
306
306
330
250
75
273
240
298
183
325
115
80
282
282
301
228
330
168
85
299
299
306
278
331
216
90
316
316
316
316
336
265
75
278
252
302
191
329
118
80
289
289
306
240
333
175
85
307
307
312
294
336
226
90
325
325
325
325
340
280
75
282
265
305
195
331
120
80
296
296
310
251
336
182
85
314
314
317
310
339
236
90
333
333
332
332
345
294
75
286
279
308
203
334
122 Notes:
80
303
303
314
264
338
187
85
322
322
322
322
343
248
90
340
340
340
340
349
311
9000
10000
11000
12000
13200
42
1. All capacities shown are gross and have not considered indoor fan heat. To obtain net
cooling, subtract indoor fan heat.
2. TGC = Total gross capacity.
3. SHC = Sensible heat capacity.
RT-PRC033-EN
Performance Data (60 Hz Units)
Table 13. 35 ton gross cooling capacities (Mbh)—4-row condenser coil—60 Hz
Ambient Temperature
85
Air
Ent
Flow
DB
95
105
Entering Wet Bulb Temperature
61
67
73
61
67
73
61
67
73
CFM (°F) TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
75
375
307
410
238
447
162
355
297
388
227
422
152
334
285
364
216
396
141
80
381
364
412
293
450
221
361
353
390
282
425
210
340
340
367
269
399
200
85
397
397
416
349
452
278
379
379
394
337
427
268
359
359
371
325
401
255
90
417
417
422
406
454
332
399
399
401
394
430
321
378
378
378
378
404
309
75
384
328
418
251
454
166
364
319
395
241
429
155
342
306
371
230
402
144
10500
12000
13000
14000
14400
80
392
392
421
312
458
232
373
373
398
300
433
222
353
353
374
288
406
211
85
413
413
426
376
459
295
394
394
404
364
434
283
373
373
379
351
408
271
90
434
434
434
434
463
357
414
414
414
414
438
345
392
392
392
392
412
333
75
389
342
423
261
458
168
368
333
399
250
433
158
346
318
374
234
405
147
80
400
400
426
324
462
240
381
381
403
313
436
229
360
360
378
300
409
218
85
422
422
432
393
464
306
402
402
409
381
439
294
381
381
384
369
411
282
90
444
444
444
444
468
373
423
423
423
423
443
361
400
400
400
400
416
348
75
394
356
427
270
462
170
373
344
402
254
436
160
350
331
377
241
407
149
80
408
408
430
337
466
247
388
388
407
325
440
237
367
367
382
312
411
223
85
431
431
437
410
468
317
410
410
414
398
442
305
388
388
389
385
415
292
90
453
453
453
453
473
389
431
431
431
431
447
377
408
408
408
408
420
364
75
396
361
428
273
463
171
375
349
404
257
437
161
352
336
378
244
409
150
80
411
411
432
341
467
250
391
391
408
329
441
239
369
369
383
317
412
225
85
434
434
439
417
470
321
413
413
416
405
444
309
390
390
390
390
416
296
90
456
456
456
456
475
395
434
434
434
434
449
383
410
410
410
410
421
370
Ambient Temperature
115
Air
Ent
Flow
DB
Entering Wet Bulb Temperature
61
67
73
CFM (°F) TGC
SHC
TGC
SHC
TGC
SHC
75
311
272
339
204
367
130
80
320
320
341
257
371
188
85
338
338
346
312
373
242
90
356
356
356
356
376
296
75
318
291
344
218
372
133
10500
12000
13000
14000
14400
80
331
331
348
275
376
199
85
350
350
354
338
379
258
90
368
368
368
368
383
319
75
322
304
347
221
375
135
80
338
338
352
287
378
204
85
357
357
358
355
382
268
90
376
376
376
376
387
335
75
326
317
350
228
377
137
80
344
344
355
298
381
210
85
363
363
363
363
385
279
90
382
382
382
382
390
350
75
328
322
351
231
378
138 Notes:
80
346
346
356
303
382
212
85
365
365
365
365
386
283
90
384
384
384
384
391
356
RT-PRC033-EN
1. All capacities shown are gross and have not considered indoor fan heat. To obtain net
cooling, subtract indoor fan heat.
2. TGC = Total gross capacity.
3. SHC = Sensible heat capacity.
43
Performance Data (60 Hz Units)
Table 14. 40 ton gross cooling capacities (Mbh)—3-row condenser coil—60 Hz
Ambient Temperature
85
Air
Ent
Flow
DB
95
105
Entering Wet Bulb Temperature
61
67
73
61
67
73
61
67
73
CFM (°F) TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
75
433
344
479
267
527
181
407
328
450
250
495
165
379
310
420
233
462
148
80
440
411
481
331
530
249
414
393
453
313
499
232
387
375
423
295
465
215
85
457
457
486
395
533
315
433
433
458
378
501
298
407
407
428
359
468
281
90
483
483
493
461
535
379
458
458
465
443
504
361
431
431
435
425
471
342
75
447
374
492
287
539
187
420
356
462
270
506
170
391
337
430
252
471
153
12000
14000
15000
16000
17600
80
453
453
495
357
543
265
429
429
465
339
510
248
403
403
434
321
475
230
85
481
481
501
432
545
340
455
455
471
414
512
322
428
428
440
395
478
303
90
508
508
508
508
549
412
482
482
481
481
516
394
453
453
453
453
482
375
75
453
388
497
296
544
190
425
370
466
279
510
173
396
351
434
262
475
155
80
463
463
500
370
548
273
438
438
470
352
514
255
411
411
439
333
479
238
85
491
491
507
450
550
351
465
465
477
431
517
333
437
437
446
412
482
314
90
519
519
520
518
555
428
492
492
491
491
522
410
462
462
462
462
487
391
75
458
402
501
306
548
192
430
384
471
289
514
175
401
365
438
271
478
158
80
472
472
505
383
552
280
446
446
475
364
518
263
419
419
443
345
481
245
85
501
501
513
467
555
362
474
474
483
449
521
344
445
445
451
429
486
324
90
529
529
529
529
560
444
501
501
500
500
526
426
471
471
470
470
491
406
75
466
424
508
321
554
196
437
405
476
298
519
179
408
386
443
279
483
162
80
485
485
513
402
558
292
458
458
482
384
522
274
429
429
449
364
486
255
85
514
514
521
495
561
380
486
486
491
476
527
361
456
456
456
456
491
341
90
543
543
543
543
567
469
514
514
513
513
533
451
482
482
482
482
497
431
Ambient Temperature
115
Air
Ent
Flow
DB
Entering Wet Bulb Temperature
61
67
73
CFM (°F) TGC
SHC
TGC
SHC
TGC
SHC
75
350
291
388
215
426
130
80
357
357
391
276
430
197
85
380
380
396
340
432
261
90
403
403
403
403
436
323
75
361
318
397
234
434
135
12000
14000
15000
16000
17600
44
80
375
375
401
301
439
212
85
399
399
407
375
441
283
90
423
423
423
423
446
355
75
366
332
400
239
438
137
80
382
382
405
313
440
219
85
407
407
412
392
445
294
90
431
431
431
431
450
371
75
370
345
403
246
441
140
80
389
389
409
325
444
225
85
414
414
417
409
449
304
90
439
439
438
438
454
386
75
376
366
408
259
445
144 Notes:
80
399
399
414
344
449
234
85
424
424
424
424
454
321
90
449
449
449
449
460
410
1. All capacities shown are gross and have not considered indoor fan heat. To obtain net
cooling, subtract indoor fan heat.
2. TGC = Total gross capacity.
3. SHC = Sensible heat capacity.
RT-PRC033-EN
Performance Data (60 Hz Units)
Table 15. 50 ton gross cooling capacities (MBh)—4-row condenser coil—60 Hz
Ambient Temperature
85
Air
Ent
Flow
DB
95
105
Entering Wet Bulb Temperature
61
67
73
61
67
73
61
67
73
CFM (°F) TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
75
538
438
593
339
650
232
508
421
559
322
612
215
476
402
523
304
572
197
80
547
522
596
420
654
317
518
504
562
402
617
300
484
484
526
382
577
282
85
571
571
602
501
657
400
543
543
569
483
620
383
514
514
533
463
579
363
90
603
603
611
584
660
479
574
574
578
565
623
461
543
543
542
542
584
441
75
552
468
605
359
661
237
520
449
570
341
622
220
487
429
532
323
581
202
80
562
562
609
446
666
333
534
534
574
428
627
316
503
503
537
408
586
298
85
595
595
616
538
668
424
565
565
582
519
630
405
534
534
545
499
589
386
90
627
627
627
627
674
513
597
597
596
596
636
494
564
564
563
563
595
474
75
557
482
610
368
666
240
526
463
574
350
626
222
492
444
536
332
584
205
80
571
571
614
459
671
341
542
542
579
441
632
323
511
511
542
421
590
305
85
605
605
622
556
673
435
575
575
588
537
635
416
542
542
551
517
594
397
90
638
638
638
638
680
529
607
607
606
606
641
510
573
573
572
572
600
490
75
563
496
614
377
670
242
531
477
578
360
630
225
496
457
540
341
587
207
80
580
580
619
472
675
348
551
551
584
453
636
330
519
519
546
433
591
312
85
614
614
628
574
678
447
583
583
593
554
639
428
550
550
556
534
598
408
90
648
648
648
648
685
546
616
616
616
616
646
526
581
581
581
581
605
506
75
568
510
618
387
674
245
535
491
582
369
633
227
501
471
542
344
591
209
80
589
589
624
485
679
355
558
558
588
465
639
338
526
526
550
445
597
320
85
623
623
634
591
683
458
592
592
598
572
643
439
558
558
561
551
601
419
90
657
657
657
657
690
562
624
624
624
624
651
542
589
589
588
588
609
522
15000
17000
18000
19000
20000
Ambient Temperature
115
Air
Ent
Flow
DB
Entering Wet Bulb Temperature
61
67
73
CFM (°F) TGC
SHC
TGC
SHC
TGC
SHC
75
441
382
485
286
529
179
80
454
454
488
362
535
263
85
482
482
495
443
537
342
90
509
509
509
509
542
421
75
451
409
493
304
537
184
80
470
470
498
387
543
279
85
499
499
506
478
546
365
90
528
528
528
528
552
453
75
456
423
496
313
540
186
80
478
478
502
400
544
285
85
507
507
511
495
550
376
90
536
536
536
536
557
469
75
460
436
499
315
543
189
80
485
485
506
412
547
291
85
514
514
514
514
553
386
90
544
544
543
543
561
485
75
464
450
502
323
545
191 Notes:
80
491
491
509
424
550
297
85
521
521
521
521
557
397
90
550
550
550
550
564
500
15000
17000
18000
19000
20000
RT-PRC033-EN
1. All capacities shown are gross and have not considered indoor fan heat. To obtain net
cooling, subtract indoor fan heat.
2. TGC = Total gross capacity.
3. SHC = Sensible heat capacity.
45
Performance Data (60 Hz Units)
Table 16. Electric heat air temperature rise—60 Hz
KW
Input
Total
MBH
CFM
8000
9000
10000 11000 12000 13000 14000 15000 16000 17000 18000 19000 20000
36
123
14.2
12.6
11.3
10.3
9.4
8.7
8.1
7.6
—
—
—
—
—
54
184
21.2
18.9
17.0
15.4
14.2
13.1
12.1
11.3
10.6
10.0
9.4
8.9
8.5
72
246
28.3
25.2
22.6
20.6
18.9
17.4
16.2
15.1
14.2
13.3
12.6
11.9
11.3
90
307
35.4
31.5
28.3
25.7
23.6
21.8
20.2
18.9
17.7
16.7
15.7
14.9
14.2
108
369
—
—
—
—
28.3
26.1
24.3
22.6
21.2
20.0
18.9
17.9
17.0
Table 17. Available electric heat KW ranges—60 Hz
Electric Heat Rated Voltage
Nominal Unit
Size Tons
208
240
480
600
27½
27-41
36-54
36-90
54-90
30.0
27-41
36-54
36-90
54-90
35.0
27-41
36-54
36-90
54-90
40.0
41
54
54-108
54-108
50.0
41
54
54-108
54-108
Notes:
1. kW ranges in this table are based on heater operating at 208, 240, 480, and 600 volts.
2. For other than rated voltage, kW = (Applied Voltage/Rate Voltage)2 x Rated kW.
3. Electric heaters up to 54 kW are single element heaters, those above 54 kW are dual element heaters.
Table 18. Natural gas heating capacities—60 Hz
Tons
Unit Model No.
Heat Input MBH
Heating Output MBH
Air Temp Rise, °F
27½-35
YC(D,H,F,R)330**L
YC(D,H,F,R)360**L
YC(D,H,F,R)420**L
350,000/250,000
283,500/202,500
10-40
27½-35
YC(D,H,F,R)330**H
YC(D,H,F,R)360**H
YC(D,H,F,R)420**H
600,000/425,000
486,000/344,500
25-55
40-50
YC(D,H,F,R)480**L
YC(D,H,F,R)600**L
400,000/300,000
324,000/243,000
5-35
40-50
YC(D,H,F,R)480**H
YC(D,H,F,R)600**H
800,000/600,000
648,000/486,000
20-50
Note: Second stage is total heating capacity.Second Stage/First Stage.
46
RT-PRC033-EN
Performance Data (60 Hz Units)
Table 19. Supply fan performance—27½-35 ton—60 Hz
Total Static Pressure (in. wg)1
0.25
0.50
0.75
1.00
1.25
1.50
1.75
2.00
CFM Std.
Air
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
2.25
RPM
BHP
8000
308
1.17
372
1.62
427
2.09
475
2.55
525
3.11
574
3.75
620
4.42
661
5.09
701
5.77
8500
317
1.33
381
1.82
436
2.33
480
2.77
528
3.34
574
3.97
620
4.66
662
5.36
702
6.08
9000
326
1.51
391
2.04
443
2.55
489
3.08
532
3.58
577
4.22
620
4.91
663
5.64
703
6.40
9500
337
1.72
401
2.28
451
2.80
498
3.39
537
3.87
580
4.50
621
5.18
663
5.93
703
6.70
10000
349
1.96
411
2.54
459
3.09
506
3.69
545
4.25
584
4.81
624
5.48
664
6.23
703
7.02
10500
363
2.22
421
2.82
468
3.40
513
3.98
555
4.65
589
5.17
628
5.84
666
6.56
703
7.34
11000
376
2.52
430
3.11
479
3.74
521
4.33
563
5.03
598
5.63
633
6.22
670
6.95
706
7.73
11500
390
2.83
438
3.41
489
4.10
530
4.72
570
5.38
607
6.11
639
6.68
674
7.37
709
8.14
12000
404
3.18
447
3.74
499
4.48
538
5.13
578
5.79
615
6.56
648
7.22
679
7.83
713
8.59
12500
417
3.55
457
4.10
509
4.88
549
5.58
586
6.24
623
7.00
657
7.78
687
8.42
718
9.10
13000
431
3.95
468
4.50
518
5.30
559
6.04
594
6.73
630
7.45
665
8.30
696
9.04
724
9.69
13500
445
4.39
479
4.92
526
5.73
569
6.53
604
7.26
638
7.98
673
8.82
705
9.68
733
10.38
14000
459
4.85
490
5.39
535
6.19
579
7.04
614
7.81
647
8.56
680
9.35
713
10.26
742
11.09
14500
473
5.35
503
5.90
544
6.68
588
7.59
624
8.40
656
9.18
688
9.96
720
10.86
751
11.78
Total Static Pressure (in. wg)1
2.50
2.75
3.00
CFM Std.
RPM BHP RPM BHP RPM BHP
Air
8000
738
6.48
773
7.18
805
7.88
8500
739
6.82
774
7.54
807
8.28
9000
740
7.16
775
7.92
809
8.70
9500
740
7.48
776
8.30
810
9.12
10000
742
7.86
777
8.68
812
9.54
10500
742
8.20
777
9.05
812
9.94
11000
741
8.56
777
9.43
812
10.35
11500
743
8.95
777
9.83
812
10.78
12000
747
9.43
780
10.30
812
11.21
12500
750
9.90
783
10.79
814
11.70
13000
755
10.45
786
11.30
817
12.22
13500
760
11.04
790
11.88
821
12.81
14000
768
11.79
795
12.52
824
13.39
14500
778
12.59
803
13.30
829
14.10
Notes:
1. Supply fan performance table includes internal resistance of rooftop. For total static pressure determination, system external static must be added to
appropriate component static pressure drops, (evaporator coil, filters, optional economizer, optional heating system, optional roof curb).
2. The pressure drop from the supply fan to the space cannot exceed 2.25”.
3. Maximum air flow for 27½ ton — 12,100 cfm, 30 ton — 13,200 cfm, 35 ton — 14,400 cfm.
4. Maximum motor horsepower for 27½ ton — 10 hp, 30 ton — 10 hp, 35 ton — 15 hp.
RT-PRC033-EN
47
Performance Data (60 Hz Units)
Table 20. Supply fan performance—40 and 50 ton—60 Hz
Total Static Pressure (in. wg)1
0.25
0.50
0.75
1.00
1.25
1.50
1.75
2.00
CFM Std.
Air
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
2.25
RPM
BHP
12000
307
2.29
353
2.86
394
3.45
436
4.11
471
4.75
509
5.43
543
6.14
575
6.89
606
7.63
13000
324
2.79
368
3.40
407
4.06
446
4.73
482
5.43
515
6.13
550
6.87
582
7.65
612
8.44
14000
341
3.35
384
4.03
422
4.74
457
5.42
494
6.19
525
6.93
556
7.69
589
8.49
619
9.32
15000
359
3.99
401
4.77
437
5.48
471
6.24
504
6.99
537
7.82
566
8.62
595
9.42
625
10.27
16000
376
4.72
418
5.60
452
6.32
485
7.14
515
7.92
548
8.77
578
9.65
604
10.49
632
11.36
17000
394
5.53
434
6.50
468
7.26
500
8.12
529
8.97
558
9.79
589
10.73
616
11.65
641
12.54
18000
413
6.42
451
7.48
485
8.34
515
9.18
544
10.11
571
10.99
598
11.89
628
12.88
654
13.87
19000
431
7.42
469
8.55
501
9.53
530
10.37
559
11.34
585
12.29
611
13.22
637
14.17
665
15.24
20000
449
8.52
486
9.72
518
10.83
547
11.69
573
12.66
600
13.69
625
14.70
648
15.64
675
16.71
Total Static Pressure (in. wg)1
2.50
2.75
3.00
3.25
3.50
CFM Std.
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
Air
12000
640
8.45
670
9.25
700
10.03
727
10.81
755
11.61
13000
640
9.23
671
10.12
701
10.98
729
11.85
756
12.69
14000
647
10.16
674
11.04
700
11.89
729
12.85
757
13.79
15000
653
11.14
680
12.05
706
12.97
731
13.89
757
14.86
16000
659
12.23
687
13.16
713
14.14
738
15.10
762
16.10
17000
666
13.45
694
14.42
719
15.37
744
16.39
768
17.39
18000
677
14.81
700
15.76
726
16.78
751
17.77
774
18.81
19000
690
16.29
711
17.27
734
18.29
758
19.34
782
20.41
20000
701
17.83
724
18.91
745
19.94
765
20.99
788
22.12
Notes:
1. Supply fan performance table includes internal resistance of rooftop. For total static pressure determination, system external static must be added to
appropriate component static pressure drops, (evaporator coil, filters, optional economizer, optional heating system, optional roof curb).
2. The pressure drop from the supply fan to the space cannot exceed 2.50".
3. Maximum air flow for 40 ton — 17,600 cfm, 50 ton — 20,000 cfm.
4. Maximum motor horsepower for 40 ton — 15 hp, 50 ton — 20 hp.
48
RT-PRC033-EN
Performance Data (60 Hz Units)
Figure 4. Supply fan performance—27½-35 ton—60 Hz
70
0R
PM
3.0
70
%
60
%
3.5
W
OC
FM
50%
80
0R
PM
W
OC
FM
WO
CF
M
27-35T
4.0
60
0R
PM
%
80
2.0
FM
OC
W
15
HP
Static Presure(InWC)
2.5
10
50
0R
PM
1.5
HP
5
7.
HP
1.0
%
90
FM
OC
W
5
40
0R
PM
HP
3
HP
0.5
0.0
0
2000
4000
6000
8000
10000
12000
14000
16000
18000
20000
22000
24000
26000
Volumetric Airflow Rate(CFM)
Figure 5. Supply fan performance — 40 and 50 ton—60 Hz
Supply Fan Performance 40 and 50 Ton
50
%
40%
80
0R
PM
W
OC
FM
WO
CF
M
5
4
75
0R
PM
%
60
FM
OC
W
3
65
0R
PM
60
0R
PM
%
70
55
0R
PM
2
HP
15
50
0R
PM
45
0R
PM
40
0R
PM
35
0R
PM
30
0R
PM
HP
10
80%
M
CF
WO
HP
5
7.
1
FM
OC
W
20
Static Presure(InWC)
70
0R
PM
HP
CFM
WO
90%
0
0
2000
4000
6000
8000
10000
12000
14000
16000
18000
20000
22000
24000
26000
28000
Volumetric Airflow Rate(CFM)
RT-PRC033-EN
49
Performance Data (60 Hz Units)
Table 21. Component static pressure drops (in. W.G.)1—60 Hz
Filters2
Heating System
Gas Heat
Nominal
Tons
27½
30
35
40
50
Electric Heat3
ID Coil
MERV
Throw MERV 8 High Eff. 14 High
-away
Filters
Eff.
CFM
Std
Air
Low
High
Dry
Wet
2"
2"
4"
4"
8000
0.08
0.06
0.05
0.06
0.12
0.19
0.08
0.12
0.11
0.33
0.04
0.08
9000
0.1
0.08
0.07
0.07
0.14
0.22
0.09
0.14
0.13
0.39
0.04
0.10
0.12
1
2
Element Elements
Hot Gas
Reheat
Economizer
Coil
10000
0.13
0.1
0.08
0.09
0.17
0.26
0.1
0.16
0.15
0.45
0.05
11000
0.15
0.12
0.1
0.11
0.20
0.30
0.12
0.2
0.17
0.52
0.06
0.14
12000
0.18
0.14
0.12
0.13
0.23
0.34
0.13
0.21
0.2
0.59
0.07
0.17
9000
0.1
0.08
0.07
0.07
0.14
0.22
0.09
0.14
0.13
0.39
0.04
0.10
10000
0.13
0.1
0.08
0.09
0.17
0.26
0.1
0.16
0.15
0.45
0.05
0.12
11000
0.15
0.12
0.1
0.11
0.20
0.30
0.12
0.2
0.17
0.52
0.06
0.14
12000
0.18
0.14
0.12
0.13
0.23
0.34
0.14
0.23
0.21
0.59
0.07
0.17
13000
0.21
0.16
0.14
0.15
0.27
0.38
0.15
0.26
0.23
0.66
0.09
0.20
10500
0.14
0.11
0.09
0.1
0.25
0.37
0.11
0.18
0.16
0.48
0.06
0.13
11500
0.17
0.13
0.11
0.12
0.29
0.42
0.13
0.21
0.19
0.55
0.07
0.16
12500
0.2
0.15
0.13
0.14
0.33
0.48
0.14
0.24
0.21
0.62
0.08
0.18
13500
0.23
0.18
0.15
0.16
0.38
0.53
0.15
0.26
0.23
0.70
0.1
0.22
14500
0.26
0.2
0.18
0.19
0.42
0.59
0.17
0.3
0.27
0.77
0.11
0.25
12000
0.01
0.03
0.08
0.13
0.24
0.36
0.1
0.19
0.17
0.48
0.07
0.06
0.07
13000
0.01
0.04
0.1
0.15
0.28
0.41
0.12
0.23
0.2
0.53
0.08
14000
0.02
0.05
0.11
0.18
0.31
0.46
0.13
0.25
0.22
0.59
0.09
0.08
15000
0.02
0.05
0.13
0.2
0.35
0.50
0.14
0.28
0.24
0.66
0.1
0.09
16000
0.02
0.06
0.15
0.23
0.39
0.55
0.15
0.31
0.27
0.72
0.11
0.10
17000
0.02
0.07
0.17
0.26
0.43
0.60
0.17
0.35
0.3
0.79
0.12
0.11
0.09
15000
0.02
0.05
0.13
0.2
0.44
0.63
0.14
0.28
0.24
0.66
0.1
16000
0.02
0.06
0.15
0.23
0.49
0.69
0.15
0.31
0.27
0.72
0.11
0.10
17000
0.02
0.07
0.17
0.26
0.54
0.75
0.17
0.35
0.3
0.79
0.12
0.11
18000
0.03
0.08
0.19
0.29
0.59
0.82
0.18
0.38
0.33
0.85
0.14
0.13
19000
0.03
0.08
0.21
0.32
0.65
0.89
0.19
0.42
0.35
0.92
0.16
0.14
20000
0.03
0.09
0.23
0.36
0.71
0.96
0.2
0.45
0.38
0.99
0.18
0.16
Notes:
1. Static pressure drops of accessory components must be added to external static pressure to enter fan selection tables.
2. Throwaway filter option limited to 300 ft/min face velocity.
3. Electric Heaters 36-54 KW contain 1 element; 72-108 KW 2 elements.
50
RT-PRC033-EN
Performance Data (60 Hz Units)
Table 22. Supply air fan drive selections—60 Hz
Nominal
Tons
27½
7.5 HP
RPM
Drive No.
550
A
600
B
650
C
Drive No.
700
700
D
750
7501
E
700
700
D
750
750
E
40
Drive No.
790
7902
F
800
8001
G
RPM
Drive No.
725
N
A
600
B
650
C
B
650
650
C
700
700
D
500
500
H
525
525
J
575
575
K
625
625
L
675
675
M
725
N
725
50
20 HP
RPM
600
35
15 HP
RPM
550
30
10 HP
525
525
J
575
575
K
625
625
L
675
675
M
725
Notes:
1. For YC gas/electrics only.
2. For TC and TE Cooling only and with electric heat units only.
RT-PRC033-EN
51
Performance Data (60 Hz Units)
Table 23. Power exhaust fan performance—27.5-35 ton—60 Hz
Power Exhaust Selection
50%
100%
Damper Blade Open Distance (in)
1.5 (min)
4.0 (max)
Return Duct Static
(in. wc)
1.5 (min)
4.0 (max)
CFM
0.0
3812
6866
7624
13742
0.1
3497
5296
6995
10591
0.2
3190
4458
6325
9000
0.3
2884
3812
5768
7635
0.4
2621
3359
5241
6719
0.5
2342
2885
4683
5771
Table 24. Power exhaust fan performance—40-50—60 Hz
Power Exhaust Selection
50%
100%
Damper Blade Open Distance (in)
1.5 (min)
4.0 (max)
1.5 (min)
4.0 (max)
0.0
4854
8035
0.1
9708
16069
4575
7410
9151
14820
0.2
4262
6450
8552
13496
0.3
4011
6027
8021
12054
0.4
3718
5526
7436
11051
0.5
3467
5186
6933
10373
Return Duct Static
(in. wc)
CFM
Note: These values are the minimum and maximum positions for non-tracking power exhaust. Fresh air tracking and Statitrac
options can fully close the exhaust dampers in their operation, and are thus able to reach lower airflows. Statitrac
requires 100% power exhaust.
52
RT-PRC033-EN
Performance Data (50 Hz Units)
Table 25. 22.9 ton gross cooling capacities (MBh)—3-row condenser coil (I-P)—50 Hz
Ambient Temperature (°F)
85
CFM
6900
7500
8000
9000
10000
95
105
Entering Wet Bulb Temperature (°F)
Ent
DB
°F
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
75
246
194
272
152
299
106
232
185
256
144
281
97.4
217
176
240
136
262
88.9
80
250
230
273
187
301
143
236
221
258
178
284
134
221
212
241
169
265
126
85
258
258
276
222
303
179
245
245
260
213
286
171
232
232
244
203
268
162
61
67
73
61
67
73
61
67
73
90
272
272
280
257
304
213
259
259
264
248
287
204
245
245
248
239
269
195
75
250
202
276
158
302
107
236
194
260
150
284
99
221
184
243
141
265
90.4
80
255
241
277
194
305
147
241
232
262
185
288
139
226
223
245
176
269
130
85
265
265
281
232
308
186
252
252
265
223
290
178
238
238
248
213
270
167
90
280
280
285
270
309
222
267
267
270
261
292
213
252
252
253
252
273
204
75
254
209
279
163
305
109
239
200
263
154
287
100
224
191
245
146
267
91.6
80
259
251
281
200
309
151
244
242
265
191
290
143
229
229
247
182
271
134
85
271
271
284
240
311
193
258
258
268
231
292
182
243
243
251
222
273
172
90
287
287
290
281
313
230
273
273
274
272
295
221
257
257
257
257
276
211
75
259
222
284
172
310
111
244
213
267
163
291
103
228
203
249
155
271
93.9
80
265
265
286
212
314
158
252
252
270
203
295
150
237
237
252
193
275
141
85
281
281
291
257
316
202
267
267
274
248
297
193
252
252
257
238
278
183
90
298
298
297
297
319
245
283
283
283
283
301
236
267
267
267
267
281
226
75
264
235
288
181
314
113
249
226
270
168
294
105
233
216
252
158
274
96.1
80
273
273
291
224
318
165
259
259
274
214
299
157
244
244
256
204
277
146
85
290
290
296
273
320
212
275
275
280
264
301
203
259
259
262
253
281
192
90
307
307
307
307
324
260
291
291
291
291
306
251
275
275
275
275
286
241
Ambient Temperature (°F)
115
CFM
6900
7500
8000
9000
10000
Entering Wet Bulb Temperature
(°F)
Ent
DB
°F
TGC
SHC
TGC
SHC
TGC
SHC
75
201
167
222
127
242
80.1
80
206
202
224
159
246
117
85
217
217
227
193
247
151
90
230
230
231
229
250
185
75
205
174
225
132
245
81.5
61
67
73
80
210
210
227
166
248
121
85
223
223
230
203
250
157
90
236
236
236
236
253
194
75
207
181
227
137
247
82.7
80
214
214
229
172
250
125
85
227
227
233
211
252
162
90
241
241
241
241
256
201
75
212
193
230
141
250
84.9
80
221
221
233
183
254
132
85
235
235
238
227
256
172
90
249
249
249
249
260
216
75
215
205
233
148
252
87.1 Notes:
80
227
227
237
193
255
135
85
242
242
243
242
260
182
90
256
256
256
256
264
230
RT-PRC033-EN
1. All capacities shown are gross and have not considered indoor fan heat. To obtain net
cooling, subtract indoor fan heat.
2. TGC = Total gross capacity.
3. SHC = Sensible heat capacity.
53
Performance Data (50 Hz Units)
Table 26. 82 kW (22.9 ton) gross cooling capacities (MBh)—3-row condenser coil (SI)—50 Hz
Ambient Temperature (°C)
29.4
L/s
3260
3540
3780
4250
4720
35.0
40.6
Entering Wet Bulb Temperature (°C)
Ent
DB
°C
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
23.9
72.1
56.8
79.7
44.5
87.6
31.1
68.0
54.2
75.0
42.2
82.3
28.5
63.6
51.6
70.3
39.8
76.8
26.0
26.7
73.2
67.4
80.0
54.8
88.2
41.9
69.1
64.8
75.6
52.2
83.2
39.3
64.8
62.1
70.6
49.5
77.6
36.9
29.4
75.6
75.6
80.9
65.0
88.8
52.4
71.8
71.8
76.2
62.4
83.8
50.1
68.0
68.0
71.5
59.5
78.5
47.5
16.1
19.4
22.8
16.1
19.4
22.8
16.1
19.4
22.8
32.2
79.7
79.7
82.0
75.3
89.1
62.4
75.9
75.9
77.4
72.7
84.1
59.8
71.8
71.8
72.7
70.0
78.8
57.1
23.9
73.2
59.2
80.9
46.3
88.5
31.4
69.1
56.8
76.2
43.9
83.2
29.0
64.8
53.9
71.2
41.3
77.6
26.5
38.1
26.7
74.7
70.6
81.2
56.8
89.4
43.1
70.6
68.0
76.8
54.2
84.4
40.7
66.2
65.3
71.8
51.6
78.8
29.4
77.6
77.6
82.3
68.0
90.2
54.5
73.8
73.8
77.6
65.3
85.0
52.2
69.7
69.7
72.7
62.4
79.1
48.9
32.2
82.0
82.0
83.5
79.1
90.5
65.0
78.2
78.2
79.1
76.5
85.6
62.4
73.8
73.8
74.1
73.8
80.0
59.8
26.8
23.9
74.4
61.2
81.7
47.8
89.4
31.9
70.0
58.6
77.1
45.1
84.1
29.3
65.6
56.0
71.8
42.8
78.2
26.7
75.9
73.5
82.3
58.6
90.5
44.2
71.5
70.9
77.6
56.0
85.0
41.9
67.1
67.1
72.4
53.3
79.4
39.3
29.4
79.4
79.4
83.2
70.3
91.1
56.5
75.6
75.6
78.5
67.7
85.6
53.3
71.2
71.2
73.5
65.0
80.0
50.4
32.2
84.1
84.1
85.0
82.3
91.7
67.4
80.0
80.0
80.3
79.7
86.4
64.8
75.3
75.3
75.3
75.3
80.9
61.8
23.9
75.9
65.0
83.2
50.4
90.8
32.5
71.5
62.4
78.2
47.8
85.3
30.2
66.8
59.5
73.0
45.4
79.4
27.5
41.3
26.7
77.6
77.6
83.8
62.1
92.0
46.3
73.8
73.8
79.1
59.5
86.4
43.9
69.4
69.4
73.8
56.5
80.6
29.4
82.3
82.3
85.3
75.3
92.6
59.2
78.2
78.2
80.3
72.7
87.0
56.5
73.8
73.8
75.3
69.7
81.5
53.6
32.2
87.3
87.3
87.0
87.0
93.5
71.8
82.9
82.9
82.9
82.9
88.2
69.1
78.2
78.2
78.2
78.2
82.3
66.2
28.2
23.9
77.4
68.9
84.4
53.0
92.0
33.1
73.0
66.2
79.1
49.2
86.1
30.8
68.3
63.3
73.8
46.3
80.3
26.7
80.0
80.0
85.3
65.6
93.2
48.3
75.9
75.9
80.3
62.7
87.6
46.0
71.5
71.5
75.0
59.8
81.2
42.8
29.4
85.0
85.0
86.7
80.0
93.8
62.1
80.6
80.6
82.0
77.4
88.2
59.5
75.9
75.9
76.8
74.1
82.3
56.3
32.2
90.0
90.0
90.0
90.0
94.9
76.2
85.3
85.3
85.3
85.3
89.7
73.5
80.6
80.6
80.6
80.6
83.8
70.6
Ambient Temperature (°C)
46.1
Entering Wet Bulb Temperature
(°C)
L/s
3260
3540
3780
4250
4720
54
16.1
19.4
22.8
Ent DB
°C
TGC
SHC
TGC
SHC
TGC
23.9
58.9
48.9
65.0
37.2
70.9
23.5
26.7
60.4
59.2
65.6
46.6
72.1
34.3
29.4
63.6
63.6
66.5
56.5
72.4
44.2
32.2
67.4
67.4
67.7
67.1
73.2
54.2
23.9
60.1
51.0
65.9
38.7
71.8
23.9
26.7
61.5
61.5
66.5
48.6
72.7
35.5
29.4
65.3
65.3
67.4
59.5
73.2
46.0
32.2
69.1
69.1
69.1
69.1
74.1
56.8
23.9
60.7
53.0
66.5
40.1
72.4
24.2
26.7
62.7
62.7
67.1
50.4
73.2
36.6
29.4
66.5
66.5
68.3
61.8
73.8
47.5
32.2
70.6
70.6
70.6
70.6
75.0
58.9
23.9
62.1
56.5
67.4
41.3
73.2
24.9
26.7
64.8
64.8
68.3
53.6
74.4
38.7
29.4
68.9
68.9
69.7
66.5
75.0
50.4
32.2
73.0
73.0
73.0
73.0
76.2
63.3
23.9
63.0
60.1
68.3
43.4
73.8
25.5 Notes:
26.7
66.5
66.5
69.4
56.5
74.7
39.6
29.4
70.9
70.9
71.2
70.9
76.2
53.3
32.2
75.0
75.0
75.0
75.0
77.4
67.4
SHC
1. All capacities shown are gross and have not considered indoor fan heat. To obtain net
cooling, subtract indoor fan heat.
2. TGC = Total gross capacity.
3. SHC = Sensible heat capacity.
RT-PRC033-EN
Performance Data (50 Hz Units)
Table 27. 25.4 ton gross cooling capacities (MBh)—4-row condenser coil (I-P)—50 Hz
Ambient Temperature (°F)
85
CFM
7500
8000
9000
10000
11000
95
105
Entering Wet Bulb Temperature (°F)
Ent
DB
°F
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
75
267
214
295
168
324
117
253
206
279
160
306
109
237
196
261
152
286
101
80
272
253
297
206
327
158
257
245
281
197
309
150
242
236
263
188
290
141
85
282
282
300
244
329
197
269
269
284
235
311
189
255
255
267
226
292
181
90
297
297
304
283
330
234
284
284
288
274
313
226
269
269
272
265
294
217
75
271
221
299
173
328
118
256
213
282
165
309
111
240
203
264
156
289
102
80
276
263
300
212
331
162
261
254
284
204
312
153
246
245
266
194
292
145
85
288
288
304
253
333
203
275
275
288
244
314
195
260
260
270
235
294
185
90
304
304
309
294
334
242
290
290
293
286
316
234
275
275
275
275
297
224
75
278
235
304
182
333
121
262
226
287
174
314
113
246
217
269
165
293
105
80
284
282
307
225
336
169
269
269
290
216
317
161
254
254
272
206
297
152
85
299
299
311
270
338
214
285
285
294
261
319
205
270
270
276
252
299
196
90
316
316
318
317
341
258
301
301
301
301
323
249
285
285
285
285
303
240
75
283
248
309
191
337
123
267
239
291
182
317
115
250
229
272
170
296
107
80
292
292
312
236
341
176
277
277
295
227
322
168
262
262
276
218
301
159
85
309
309
317
287
343
224
294
294
300
278
324
215
278
278
281
268
303
206
90
327
327
326
326
347
273
311
311
311
311
328
264
294
294
294
294
308
255
75
288
261
313
199
341
126
272
252
294
187
321
117
255
242
275
177
299
109
80
299
299
317
248
345
183
284
284
299
239
325
175
268
268
280
229
302
164
85
317
317
322
303
348
235
302
302
305
294
328
226
285
285
286
284
307
216
90
336
336
335
335
352
288
319
319
319
319
333
279
302
302
302
302
312
269
61
67
73
61
67
73
61
67
73
Ambient Temperature (°F)
115
CFM
7500
8000
9000
10000
11000
Entering Wet Bulb Temperature
(°F)
Ent
DB
°F
TGC
SHC
TGC
SHC
TGC
75
220
187
243
143
265
92
80
225
225
245
179
269
133
85
239
239
248
217
270
170
90
253
253
253
253
273
207
75
223
194
245
147
267
94
80
230
230
247
185
271
136
85
244
244
251
225
273
175
90
259
259
259
259
276
215
75
228
207
249
156
271
96
80
238
238
252
196
275
143
85
253
253
257
241
278
186
90
268
268
268
268
281
230
75
233
219
252
160
274
98
80
245
245
256
208
277
148
85
260
260
262
258
281
196
90
276
276
276
276
286
244
75
236
231
255
167
276
100 Notes:
80
251
251
260
219
280
153
61
67
73
SHC
85
267
267
267
267
285
205
90
283
283
283
283
289
259
RT-PRC033-EN
1. All capacities shown are gross and have not considered indoor fan heat. To obtain net
cooling, subtract indoor fan heat.
2. TGC = Total gross capacity.
3. SHC = Sensible heat capacity.
55
Performance Data (50 Hz Units)
Table 28. 89 kw (25.4 ton) gross cooling capacities—4-row condenser coil (SI)—50 Hz
Ambient Temperature (°C)
29.4
L/s
3540
3780
4250
4720
5190
35.0
40.6
Entering Wet Bulb Temperature (°C)
Ent
DB
°C
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
23.9
78.2
62.7
86.4
49.2
94.9
34.3
74.1
60.4
81.7
46.9
89.7
31.9
69.4
57.4
76.5
44.5
83.8
29.6
26.7
79.7
74.1
87.0
60.4
95.8
46.3
75.3
71.8
82.3
57.7
90.5
43.9
70.9
69.1
77.1
55.1
85.0
41.3
29.4
82.6
82.6
87.9
71.5
96.4
57.7
78.8
78.8
83.2
68.9
91.1
55.4
74.7
74.7
78.2
66.2
85.6
53.0
16.1
19.4
22.8
16.1
19.4
22.8
16.1
19.4
22.8
32.2
87.0
87.0
89.1
82.9
96.7
68.6
83.2
83.2
84.4
80.3
91.7
66.2
78.8
78.8
79.7
77.6
86.1
63.6
23.9
79.4
64.8
87.6
50.7
96.1
34.6
75.0
62.4
82.6
48.3
90.5
32.5
70.3
59.5
77.4
45.7
84.7
29.9
42.5
26.7
80.9
77.1
87.9
62.1
97.0
47.5
76.5
74.4
83.2
59.8
91.4
44.8
72.1
71.8
77.9
56.8
85.6
29.4
84.4
84.4
89.1
74.1
97.6
59.5
80.6
80.6
84.4
71.5
92.0
57.1
76.2
76.2
79.1
68.9
86.1
54.2
32.2
89.1
89.1
90.5
86.1
97.9
70.9
85.0
85.0
85.8
83.8
92.6
68.6
80.6
80.6
80.6
80.6
87.0
65.6
30.8
23.9
81.5
68.9
89.1
53.3
97.6
35.5
76.8
66.2
84.1
51.0
92.0
33.1
72.1
63.6
78.8
48.3
85.8
26.7
83.2
82.6
90.0
65.9
98.4
49.5
78.8
78.8
85.0
63.3
92.9
47.2
74.4
74.4
79.7
60.4
87.0
44.5
29.4
87.6
87.6
91.1
79.1
99.0
62.7
83.5
83.5
86.1
76.5
93.5
60.1
79.1
79.1
80.9
73.8
87.6
57.4
32.2
92.6
92.6
93.2
92.9
99.9
75.6
88.2
88.2
88.2
88.2
94.6
73.0
83.5
83.5
83.5
83.5
88.8
70.3
23.9
82.9
72.7
90.5
56.0
98.7
36.0
78.2
70.0
85.3
53.3
92.9
33.7
73.2
67.1
79.7
49.8
86.7
31.4
26.7
85.6
85.6
91.4
69.1
99.9
51.6
81.2
81.2
86.4
66.5
94.3
49.2
76.8
76.8
80.9
63.9
88.2
46.6
29.4
90.5
90.5
92.9
84.1 100.5 65.6
86.1
86.1
87.9
81.5
94.9
63.0
81.5
81.5
82.3
78.5
88.8
60.4
32.2
95.8
95.8
95.5
95.5 101.7 80.0
91.1
91.1
91.1
91.1
96.1
77.4
86.1
86.1
86.1
86.1
90.2
74.7
31.9
23.9
84.4
76.5
91.7
58.3
36.9
79.7
73.8
86.1
54.8
94.1
34.3
74.7
70.9
80.6
51.9
87.6
26.7
87.6
87.6
92.9
72.7 101.1 53.6
99.9
83.2
83.2
87.6
70.0
95.2
51.3
78.5
78.5
82.0
67.1
88.5
48.1
29.4
92.9
92.9
94.3
88.8 102.0 68.9
88.5
88.5
89.4
86.1
96.1
66.2
83.5
83.5
83.8
83.2
90.0
63.3
32.2
98.4
98.4
98.2
98.2 103.1 84.4
93.5
93.5
93.5
93.5
97.6
81.7
88.5
88.5
88.5
88.5
91.4
78.8
Ambient Temperature (°C)
46.1
Entering Wet Bulb Temperature
(°C)
L/s
3540
3780
4250
4720
5190
56
16.1
19.4
22.8
Ent DB
°C
TGC
SHC
TGC
SHC
TGC
23.9
64.5
54.8
71.2
41.9
77.6
27.1
26.7
65.9
65.9
71.8
52.4
78.8
39.0
29.4
70.0
70.0
72.7
63.6
79.1
49.8
32.2
74.1
74.1
74.1
74.1
80.0
60.7
23.9
65.3
56.8
71.8
43.1
78.2
27.4
26.7
67.4
67.4
72.4
54.2
79.4
39.8
29.4
71.5
71.5
73.5
65.9
80.0
51.3
32.2
75.9
75.9
75.9
75.9
80.9
63.0
23.9
66.8
60.7
73.0
45.7
79.4
28.1
26.7
69.7
69.7
73.8
57.4
80.6
41.9
29.4
74.1
74.1
75.3
70.6
81.5
54.5
32.2
78.5
78.5
78.5
78.5
82.3
67.4
23.9
68.3
64.2
73.8
46.9
80.3
28.7
26.7
71.8
71.8
75.0
60.9
81.2
43.4
29.4
76.2
76.2
76.8
75.6
82.3
57.4
32.2
80.9
80.9
80.9
80.9
83.8
71.5
23.9
69.1
67.7
74.7
48.9
80.9
29.3 Notes:
26.7
73.5
73.5
76.2
64.2
82.0
44.8
29.4
78.2
78.2
78.2
78.2
83.5
60.1
32.2
82.9
82.9
82.9
82.9
84.7
75.9
SHC
1. All capacities shown are gross and have not considered indoor fan heat. To obtain net
cooling, subtract indoor fan heat.
2. TGC = Total gross capacity.
3. SHC = Sensible heat capacity.
RT-PRC033-EN
Performance Data (50 Hz Units)
Table 29. 29.2 ton gross cooling capacities (MBh)—4-row condenser coil (IP)—50 Hz
Ambient Temperature (°F)
85
CFM
8750
9000
10000
11000
12000
95
105
Entering Wet Bulb Temperature (°F)
Ent
DB
°F
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
75
314
256
344
198
376
136
296
247
325
189
355
127
278
236
305
179
332
117
80
319
305
346
245
379
185
302
295
327
235
357
176
283
283
307
224
335
166
85
332
332
349
292
380
233
317
317
331
282
359
223
300
300
311
271
336
212
90
350
350
354
339
382
278
334
334
336
329
361
268
316
316
316
316
339
258
75
315
260
346
201
377
136
298
250
327
191
356
127
280
240
306
182
333
118
80
321
310
348
248
380
187
304
300
329
238
359
178
286
286
308
228
336
168
85
335
335
351
296
382
237
319
319
332
286
360
226
303
303
312
276
338
215
90
353
353
356
345
384
282
337
337
338
335
363
272
319
319
319
319
341
262
75
322
274
351
210
383
139
304
265
332
201
360
130
285
254
310
191
337
120
80
328
328
354
261
386
195
312
312
334
251
364
185
295
295
313
240
341
176
85
347
347
358
314
387
247
330
330
338
304
365
237
312
312
318
293
342
226
90
365
365
365
365
390
299
348
348
347
347
369
289
329
329
329
329
346
278
75
327
289
356
219
387
141
309
280
336
210
364
132
290
269
314
196
340
123
80
337
337
359
274
390
202
320
320
339
263
368
193
302
302
318
252
344
184
85
356
356
364
332
392
258
339
339
344
322
370
248
320
320
323
311
346
237
90
375
375
375
375
396
315
357
357
357
357
373
305
337
337
337
337
350
294
75
332
302
359
225
390
144
313
292
339
214
367
134
294
281
317
203
343
125
80
345
345
363
286
394
210
328
328
343
276
370
199
309
309
321
264
346
188
85
365
365
369
350
396
269
346
346
349
339
374
259
327
327
328
328
350
248
90
384
384
384
384
400
331
365
365
365
365
378
321
344
344
344
344
354
309
61
67
73
61
67
73
61
67
73
Ambient Temperature (°F)
115
CFM
8750
9000
10000
11000
12000
Entering Wet Bulb Temperature
(°F)
Ent
DB
°F
TGC
SHC
TGC
SHC
TGC
SHC
75
259
225
283
169
308
107
80
266
266
285
213
311
156
85
282
282
289
260
313
201
90
297
297
297
297
315
246
75
260
229
284
172
309
108
80
268
268
287
216
312
158
85
284
284
291
264
314
204
90
300
300
300
300
317
250
75
265
243
288
181
312
110
80
276
276
291
229
316
166
85
293
293
296
282
318
215
90
308
308
308
308
321
266
75
269
257
291
184
315
113
80
283
283
295
241
319
173
85
300
300
301
299
321
225
90
316
316
316
316
325
282
75
273
271
294
191
317
115 Notes:
80
289
289
298
252
321
176
85
306
306
306
306
324
236
90
322
322
322
322
329
297
RT-PRC033-EN
61
67
73
1. All capacities shown are gross and have not considered indoor fan heat. To obtain net
cooling, subtract indoor fan heat.
2. TGC = Total gross capacity.
3. SHC = Sensible heat capacity.
57
Performance Data (50 Hz Units)
Table 30. 105 kw (29.2 ton) gross cooling capacities—4-row condenser coil (SI)—50 Hz
Ambient Temperature (°C)
29.4
L/s
4130
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
23.9
92.0
75.0
100.8
58.0
110.2
39.8
86.7
72.4
95.2
55.4
104.0
37.2
81.5
69.1
89.4
52.4
97.3
34.3
26.7
93.5
89.4
101.4
71.8
111.0
54.2
88.5
86.4
95.8
68.9
104.6
51.6
82.9
82.9
90.0
65.6
98.2
48.6
97.3
97.3
102.3
85.6
111.3
68.3
92.9
92.9
97.0
82.6
105.2
65.3
87.9
87.9
91.1
79.4
98.4
62.1
102.5 102.5 103.7
99.3
111.9
81.5
97.9
97.9
98.4
96.4
105.8
78.5
92.6
92.6
92.6
92.6
99.3
75.6
32.2
22.8
16.1
19.4
22.8
16.1
19.4
22.8
SHC
76.2
101.4
58.9
110.5
39.8
87.3
73.2
95.8
56.0
104.3
37.2
82.0
70.3
89.7
53.3
97.6
34.6
26.7
94.1
90.8
102.0
72.7
111.3
54.8
89.1
87.9
96.4
69.7
105.2
52.2
83.8
83.8
90.2
66.8
98.4
49.2
98.2
98.2
102.8
86.7
111.9
69.4
93.5
93.5
97.3
83.8
105.5
66.2
88.8
88.8
91.4
80.9
99.0
63.0
103.4 103.4 104.3 101.1 112.5
82.6
98.7
98.7
99.0
98.2
106.4
79.7
93.5
93.5
93.5
93.5
99.9
76.8
23.9
94.3
80.3
102.8
61.5
112.2
40.7
89.1
77.6
97.3
58.9
105.5
38.1
83.5
74.4
90.8
56.0
98.7
35.2
26.7
96.1
96.1
103.7
76.5
113.1
57.1
91.4
91.4
97.9
73.5
106.7
54.2
86.4
86.4
91.7
70.3
99.9
51.6
29.4
101.7 101.7 104.9
92.0
113.4
72.4
96.7
96.7
99.0
89.1
106.9
69.4
91.4
91.4
93.2
85.8
100.2
66.2
32.2
106.9 106.9 106.9 106.9 114.3
87.6
102.0 102.0 101.7 101.7 108.1
84.7
96.4
96.4
96.4
96.4
101.4
81.5
38.7
85.0
78.8
92.0
57.4
99.6
36.0
23.9
26.7
95.8
84.7
104.3
98.7
98.7
64.2
113.4
41.3
90.5
82.0
98.4
61.5
106.7
105.2
80.3
114.3
59.2
93.8
93.8
99.3
77.1
107.8
56.5
88.5
88.5
93.2
73.8
100.8
53.9
29.4
104.3 104.3 106.7
97.3
114.9
75.6
99.3
99.3
100.8
94.3
108.4
72.7
93.8
93.8
94.6
91.1
101.4
69.4
32.2
109.9 109.9 109.9 109.9 116.0
92.3
104.6 104.6 104.6 104.6 109.3
89.4
98.7
98.7
98.7
98.7
102.5
86.1
39.3
86.1
82.3
92.9
59.5
100.5
36.6
23.9
5660
19.4
92.3
32.2
5190
16.1
23.9
29.4
4720
40.6
Ent
DB
°C
29.4
4250
35.0
Entering Wet Bulb Temperature (°C)
97.3
88.5
105.2
65.9
114.3
83.8
42.2
91.7
85.6
99.3
62.7
107.5
96.1
96.1
26.7
101.1 101.1 106.4
115.4
61.5
100.5
80.9
108.4
58.3
90.5
90.5
94.1
77.4
101.4
55.1
29.4
106.9 106.9 108.1 102.5 116.0
78.8
101.4 101.4 102.3
99.3
109.6
75.9
95.8
95.8
96.1
96.1
102.5
72.7
32.2
112.5 112.5 112.5 112.5 117.2
97.0
106.9 106.9 106.9 106.9 110.8
94.1
100.8 100.8 100.8 100.8 103.7
90.5
Ambient Temperature (°C)
46.1
L/s
4130
4250
4720
5190
5660
58
Entering Wet Bulb Temperature
(°C)
Ent
DB
°C
TGC
SHC
TGC
SHC
TGC
SHC
23.9
75.9
65.9
82.9
49.5
90.2
31.4
26.7
77.9
77.9
83.5
62.4
91.1
45.7
29.4
82.6
82.6
84.7
76.2
91.7
58.9
32.2
87.0
87.0
87.0
87.0
92.3
72.1
23.9
76.2
67.1
83.2
50.4
90.5
31.6
26.7
78.5
78.5
84.1
63.3
91.4
46.3
29.4
83.2
83.2
85.3
77.4
92.0
59.8
32.2
87.9
87.9
87.9
87.9
92.9
73.2
23.9
77.6
71.2
84.4
53.0
91.4
32.2
26.7
80.9
80.9
85.3
67.1
92.6
48.6
29.4
85.8
85.8
86.7
82.6
93.2
63.0
32.2
90.2
90.2
90.2
90.2
94.1
77.9
23.9
78.8
75.3
85.3
53.9
92.3
33.1
26.7
82.9
82.9
86.4
70.6
93.5
50.7
29.4
87.9
87.9
88.2
87.6
94.1
65.9
32.2
92.6
92.6
92.6
92.6
95.2
82.6
23.9
80.0
79.4
86.1
56.0
92.9
33.7 Notes:
26.7
84.7
84.7
87.3
73.8
94.1
51.6
29.4
89.7
89.7
89.7
89.7
94.9
69.1
32.2
94.3
94.3
94.3
94.3
96.4
87.0
16.1
19.4
22.8
1. All capacities shown are gross and have not considered indoor fan heat. To obtain net
cooling, subtract indoor fan heat.
2. TGC = Total gross capacity.
3. SHC = Sensible heat capacity.
RT-PRC033-EN
Performance Data (50 Hz Units)
Table 31. 33.3 ton gross cooling capacities (MBh)—3-row condenser coil (I-P)—50 Hz
Ambient Temperature (°F)
85
CFM
10000
11000
12000
13000
14600
95
105
Entering Wet Bulb Temperature (°F)
Ent
DB
°F
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
75
360
285
400
221
442
150
337
270
375
206
413
135
312
254
348
190
384
119
80
366
341
402
275
445
207
343
325
377
259
417
192
319
309
350
242
387
176
85
381
381
406
329
447
263
359
359
381
313
419
247
336
336
354
296
390
231
90
403
403
412
384
449
316
381
381
387
368
421
300
357
357
360
351
392
283
75
368
301
408
231
448
153
344
285
381
216
419
138
319
269
354
200
389
122
80
375
362
410
289
452
215
351
346
384
272
423
200
326
326
356
256
393
184
85
394
394
415
348
454
276
372
372
389
332
425
259
348
348
361
315
395
242
90
417
417
421
408
457
333
394
394
394
394
428
316
369
369
370
367
398
299
75
374
315
413
241
454
156
350
300
387
225
424
141
324
283
358
209
393
125
80
382
382
416
302
458
223
360
358
390
286
428
208
336
336
362
268
397
192
85
406
406
422
366
460
287
382
382
395
350
430
270
358
358
367
332
400
253
90
429
429
429
429
463
350
405
405
406
405
434
333
380
380
380
380
404
316
75
380
330
419
250
458
159
356
313
391
235
428
143
329
296
362
219
397
127
80
391
391
422
315
463
231
369
369
395
298
433
216
344
344
366
281
401
199
85
416
416
428
384
465
299
392
392
401
368
435
282
367
367
373
350
404
264
90
440
440
440
440
469
366
415
415
415
415
439
349
389
389
389
389
408
332
75
389
352
425
262
465
163
363
336
397
245
434
147
337
318
367
227
402
131
80
405
405
430
335
467
243
381
381
402
318
439
228
356
356
373
300
405
208
85
431
431
437
413
472
316
406
406
409
395
442
299
379
379
379
379
410
282
90
455
455
455
455
477
392
429
429
429
429
446
375
401
401
401
401
415
357
61
67
73
61
67
73
61
67
73
Ambient Temperature (°F)
115
CFM
10000
11000
12000
13000
14600
Entering Wet Bulb Temperature
(°F)
Ent
DB
°F
TGC
SHC
TGC
SHC
TGC
SHC
75
287
237
319
174
352
103
80
292
292
322
225
356
159
85
312
312
326
279
358
213
90
332
332
332
332
361
265
75
292
251
324
183
357
106
80
302
302
327
238
361
167
85
323
323
332
297
363
224
90
343
343
343
343
366
281
75
298
265
328
193
361
108
80
311
311
332
250
365
175
85
332
332
338
314
367
235
90
352
352
352
352
371
297
75
302
278
332
197
364
111
80
318
318
336
263
368
183
85
340
340
343
332
371
246
90
361
361
360
360
375
313
75
309
300
337
209
368
115 Notes:
80
329
329
342
282
372
190
85
351
351
350
350
376
263
90
372
372
372
372
381
338
RT-PRC033-EN
61
67
73
1. All capacities shown are gross and have not considered indoor fan heat. To obtain net
cooling, subtract indoor fan heat.
2. TGC = Total gross capacity.
3. SHC = Sensible heat capacity.
59
Performance Data (50 Hz Units)
Table 32. 120 kW (33.3 ton) gross cooling capacities—3-row condenser coil (SI)—50 Hz
Ambient Temperature (°C)
29.4
L/s
4720
5190
5660
6140
6890
35.0
40.6
Entering Wet Bulb Temperature (°C)
Ent
DB
°C
TGC
SHC
TGC
SHC
SHC
TGC
SHC
23.9
105.5 83.5 117.2 64.8 129.5 43.9
98.7
79.1 109.9 60.4 121.0 39.6
91.4
74.4 102.0 55.7 112.5 34.9
16.1
SHC
19.4
TGC
SHC
22.8
TGC
16.1
19.4
TGC
SHC
22.8
TGC
16.1
19.4
TGC
22.8
SHC
TGC
SHC
26.7
107.2 99.9 117.8 80.6 130.4 60.7 100.5 95.2 110.5 75.9 122.2 56.3
93.5
90.5 102.5 70.9 113.4 51.6
29.4
111.6 111.6 119.0 96.4 131.0 77.1 105.2 105.2 111.6 91.7 122.8 72.4
98.4
98.4 103.7 86.7 114.3 67.7
32.2
118.1 118.1 120.7 112.5 131.6 92.6 111.6 111.6 113.4 107.8 123.4 87.9 104.6 104.6 105.5 102.8 114.9 82.9
23.9
107.8 88.2 119.5 67.7 131.3 44.8 100.8 83.5 111.6 63.3 122.8 40.4
93.5
78.8 103.7 58.6 114.0 35.7
26.7
109.9 106.1 120.1 84.7 132.4 63.0 102.8 101.4 112.5 79.7 123.9 58.6
95.5
95.5 104.3 75.0 115.1 53.9
29.4
115.4 115.4 121.6 102.0 133.0 80.9 109.0 109.0 114.0 97.3 124.5 75.9 102.0 102.0 105.8 92.3 115.7 70.9
32.2
122.2 122.2 123.4 119.5 133.9 97.6 115.4 115.4 115.4 115.4 125.4 92.6 108.1 108.1 108.4 107.5 116.6 87.6
23.9
109.6 92.3 121.0 70.6 133.0 45.7 102.5 87.9 113.4 65.9 124.2 41.3
94.9
82.9 104.9 61.2 115.1 36.6
26.7
111.9 111.9 121.9 88.5 134.2 65.3 105.5 104.9 114.3 83.8 125.4 60.9
98.4
98.4 106.1 78.5 116.3 56.3
29.4
119.0 119.0 123.6 107.2 134.8 84.1 111.9 111.9 115.7 102.5 126.0 79.1 104.9 104.9 107.5 97.3 117.2 74.1
32.2
125.7 125.7 125.7 125.7 135.7 102.5 118.7 118.7 119.0 118.7 127.2 97.6 111.3 111.3 111.3 111.3 118.4 92.6
23.9
111.3 96.7 122.8 73.2 134.2 46.6 104.3 91.7 114.6 68.9 125.4 41.9
26.7
114.6 114.6 123.6 92.3 135.7 67.7 108.1 108.1 115.7 87.3 126.9 63.3 100.8 100.8 107.2 82.3 117.5 58.3
29.4
121.9 121.9 125.4 112.5 136.2 87.6 114.9 114.9 117.5 107.8 127.5 82.6 107.5 107.5 109.3 102.5 118.4 77.4
32.2
128.9 128.9 128.9 128.9 137.4 107.2 121.6 121.6 121.6 121.6 128.6 102.3 114.0 114.0 114.0 114.0 119.5 97.3
23.9
114.0 103.1 124.5 76.8 136.2 47.8 106.4 98.4 116.3 71.8 127.2 43.1
26.7
118.7 118.7 126.0 98.2 136.8 71.2 111.6 111.6 117.8 93.2 128.6 66.8 104.3 104.3 109.3 87.9 118.7 60.9
29.4
126.3 126.3 128.0 121.0 138.3 92.6 119.0 119.0 119.8 115.7 129.5 87.6 111.0 111.0 111.0 111.0 120.1 82.6
32.2
133.3 133.3 133.3 133.3 139.8 114.9 125.7 125.7 125.7 125.7 130.7 109.9 117.5 117.5 117.5 117.5 121.6 104.6
96.4
98.7
86.7 106.1 64.2 116.3 37.2
93.2 107.5 66.5 117.8 38.4
Ambient Temperature (°C)
46.1
Entering Wet Bulb Temperature
(°C)
L/s
4720
5190
TGC
SHC
23.9
84.1
69.4
93.5
51.0 103.1 30.2
26.7
85.6
85.6
94.3
65.9 104.3 46.6
29.4
91.4
91.4
95.5
81.7 104.9 62.4
32.2
97.3
97.3
97.3
97.3 105.8 77.6
23.9
85.6
73.5
94.9
53.6 104.6 31.1
26.7
88.5
88.5
95.8
69.7 105.8 48.9
29.4
94.6
94.6
97.3
87.0 106.4 65.6
60
TGC
SHC
100.5 100.5 100.5 100.5 107.2 82.3
23.9
87.3
77.6
96.1
26.7
91.1
91.1
97.3
73.2 106.9 51.3
29.4
97.3
97.3
99.0
92.0 107.5 68.9
56.5 105.8 31.6
103.1 103.1 103.1 103.1 108.7 87.0
23.9
88.5
81.5
97.3
57.7 106.7 32.5
26.7
93.2
93.2
98.4
77.1 107.8 53.6
29.4
99.6
99.6 100.5 97.3 108.7 72.1
32.2
6890
22.8
SHC
32.2
6140
19.4
TGC
32.2
5660
16.1
Ent DB
°C
105.8 105.8 105.5 105.5 109.9 91.7
23.9
90.5
87.9
26.7
96.4
96.4 100.2 82.6 109.0 55.7
98.7
61.2 107.8 33.7 Notes:
29.4
102.8 102.8 102.5 102.5 110.2 77.1
32.2
109.0 109.0 109.0 109.0 111.6 99.0
1. All capacities shown are gross and have not considered indoor fan heat. To obtain net
cooling, subtract indoor fan heat.
2. TGC = Total gross capacity.
3. SHC = Sensible heat capacity.
RT-PRC033-EN
Performance Data (50 Hz Units)
Table 33. 41.7 ton gross cooling capacities (MBh)—4-row condenser coil (I-P)—50 Hz
Ambient Temperature (°F)
85
CFM
12500
13500
14500
15500
16500
95
105
Entering Wet Bulb Temperature (°F)
Ent
DB
°F
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
TGC
SHC
75
449
365
497
282
545
193
423
349
467
267
512
178
394
332
436
251
477
162
80
457
435
499
350
549
264
431
419
470
334
517
249
402
402
439
317
482
233
85
477
477
505
418
552
335
453
453
475
402
520
319
427
427
444
384
484
301
90
504
504
512
487
555
401
479
479
483
471
523
384
452
452
453
447
488
367
75
457
380
503
292
552
196
429
364
473
277
518
181
401
347
441
260
482
165
80
466
456
506
364
556
273
438
438
476
347
522
257
412
412
444
330
487
241
85
490
490
512
437
558
346
465
465
482
420
525
330
438
438
451
403
489
312
90
518
518
518
518
562
418
491
491
492
488
529
401
463
463
463
463
494
383
75
463
395
509
302
557
199
435
379
478
286
522
183
406
361
445
270
486
167
80
473
473
513
377
562
281
448
448
482
360
527
265
421
421
450
343
491
249
85
502
502
519
456
564
358
475
475
489
439
530
341
447
447
456
421
494
324
90
530
530
531
529
569
435
503
503
502
502
535
418
473
473
473
473
500
400
75
469
409
514
311
561
201
441
394
482
295
526
186
411
376
449
279
490
170
80
483
483
518
390
566
289
457
457
487
373
532
273
429
429
454
355
495
257
85
512
512
526
474
569
370
485
485
495
457
535
353
456
456
462
439
499
335
90
541
541
541
541
575
451
513
513
512
512
540
434
482
482
482
482
504
416
75
474
424
518
321
565
204
446
408
485
300
530
188
415
390
452
282
493
172
80
492
492
523
403
571
296
465
465
492
386
536
281
437
437
458
368
499
265
85
521
521
531
492
574
381
494
494
500
475
539
364
464
464
467
456
503
346
90
551
551
550
550
580
468
522
522
521
521
545
450
491
491
490
490
509
432
61
67
73
61
67
73
61
67
73
Ambient Temperature (°F)
115
CFM
12500
13500
14500
15500
16500
Entering Wet Bulb Temperature
(°F)
Ent
DB
°F
TGC
SHC
TGC
SHC
TGC
SHC
75
364
314
402
234
440
146
80
375
375
406
299
445
216
85
399
399
411
366
447
283
90
423
423
422
422
452
348
75
370
329
407
244
444
148
80
384
384
411
311
450
224
85
409
409
417
384
452
294
90
433
433
433
433
457
365
75
375
343
409
248
448
151
80
392
392
415
324
453
232
85
417
417
422
402
457
305
90
442
442
442
442
462
381
75
379
357
413
256
451
153
80
400
400
419
336
457
240
85
425
425
425
425
461
316
90
450
450
450
450
466
397
75
384
370
417
263
453
156 Notes:
80
406
406
423
349
458
243
85
432
432
433
430
464
327
90
458
458
457
457
470
413
RT-PRC033-EN
61
67
73
1. All capacities shown are gross and have not considered indoor fan heat. To obtain net
cooling, subtract indoor fan heat.
2. TGC = Total gross capacity.
3. SHC = Sensible heat capacity.
61
Performance Data (50 Hz Units)
Table 34. 148 kW (41.7 ton) gross cooling capacities—4-row condenser coil (SI)—50 Hz
Ambient Temperature (°C)
29.4
L/s
5900
6370
6840
7320
7790
35.0
40.6
Entering Wet Bulb Temperature (°C)
Ent
DB
°C
TGC
23.9
131.6 106.9 145.6 82.6 159.7 56.5 123.9 102.3 136.8 78.2 150.0 52.2 115.4 97.3 127.7 73.5 139.8 47.5
16.1
SHC
19.4
TGC
SHC
22.8
TGC
SHC
16.1
TGC
SHC
19.4
TGC
SHC
22.8
TGC
SHC
16.1
TGC
SHC
19.4
TGC
22.8
SHC
TGC
SHC
26.7
133.9 127.5 146.2 102.5 160.9 77.4 126.3 122.8 137.7 97.9 151.5 73.0 117.8 117.8 128.6 92.9 141.2 68.3
29.4
139.8 139.8 148.0 122.5 161.7 98.2 132.7 132.7 139.2 117.8 152.4 93.5 125.1 125.1 130.1 112.5 141.8 88.2
32.2
147.7 147.7 150.0 142.7 162.6 117.5 140.3 140.3 141.5 138.0 153.2 112.5 132.4 132.4 132.7 131.0 143.0 107.5
23.9
133.9 111.3 147.4 85.6 161.7 57.4 125.7 106.7 138.6 81.2 151.8 53.0 117.5 101.7 129.2 76.2 141.2 48.3
26.7
136.5 133.6 148.3 106.7 162.9 80.0 128.3 128.3 139.5 101.7 152.9 75.3 120.7 120.7 130.1 96.7 142.7 70.6
29.4
143.6 143.6 150.0 128.0 163.5 101.4 136.2 136.2 141.2 123.1 153.8 96.7 128.3 128.3 132.1 118.1 143.3 91.4
32.2
151.8 151.8 151.8 151.8 164.7 122.5 143.9 143.9 144.2 143.0 155.0 117.5 135.7 135.7 135.7 135.7 144.7 112.2
23.9
135.7 115.7 149.1 88.5 163.2 58.3 127.5 111.0 140.1 83.8 152.9 53.6 119.0 105.8 130.4 79.1 142.4 48.9
26.7
138.6 138.6 150.3 110.5 164.7 82.3 131.3 131.3 141.2 105.5 154.4 77.6 123.4 123.4 131.8 100.5 143.9 73.0
29.4
147.1 147.1 152.1 133.6 165.3 104.9 139.2 139.2 143.3 128.6 155.3 99.9 131.0 131.0 133.6 123.4 144.7 94.9
32.2
155.3 155.3 155.6 155.0 166.7 127.5 147.4 147.4 147.1 147.1 156.8 122.5 138.6 138.6 138.6 138.6 146.5 117.2
23.9
137.4 119.8 150.6 91.1 164.4 58.9 129.2 115.4 141.2 86.4 154.1 54.5 120.4 110.2 131.6 81.7 143.6 49.8
26.7
141.5 141.5 151.8 114.3 165.8 84.7 133.9 133.9 142.7 109.3 155.9 80.0 125.7 125.7 133.0 104.0 145.0 75.3
29.4
150.0 150.0 154.1 138.9 166.7 108.4 142.1 142.1 145.0 133.9 156.8 103.4 133.6 133.6 135.4 128.6 146.2 98.2
32.2
158.5 158.5 158.5 158.5 168.5 132.1 150.3 150.3 150.0 150.0 158.2 127.2 141.2 141.2 141.2 141.2 147.7 121.9
23.9
138.9 124.2 151.8 94.1 165.5 59.8 130.7 119.5 142.1 87.9 155.3 55.1 121.6 114.3 132.4 82.6 144.4 50.4
26.7
144.2 144.2 153.2 118.1 167.3 86.7 136.2 136.2 144.2 113.1 157.0 82.3 128.0 128.0 134.2 107.8 146.2 77.6
29.4
152.7 152.7 155.6 144.2 168.2 111.6 144.7 144.7 146.5 139.2 157.9 106.7 136.0 136.0 136.8 133.6 147.4 101.4
32.2
161.4 161.4 161.1 161.1 169.9 137.1 152.9 152.9 152.7 152.7 159.7 131.8 143.9 143.9 143.6 143.6 149.1 126.6
Ambient Temperature (°C)
46.1
Entering Wet Bulb Temperature
(°C)
L/s
5900
6370
6840
7320
7790
62
Ent DB
°C
16.1
TGC
SHC
19.4
TGC
SHC
22.8
TGC
SHC
23.9
106.7 92.0 117.8 68.6 128.9 42.8
26.7
109.9 109.9 119.0 87.6 130.4 63.3
29.4
116.9 116.9 120.4 107.2 131.0 82.9
32.2
123.9 123.9 123.6 123.6 132.4 102.0
23.9
108.4 96.4 119.2 71.5 130.1 43.4
26.7
112.5 112.5 120.4 91.1 131.8 65.6
29.4
119.8 119.8 122.2 112.5 132.4 86.1
32.2
126.9 126.9 126.9 126.9 133.9 106.9
23.9
109.9 100.5 119.8 72.7 131.3 44.2
26.7
114.9 114.9 121.6 94.9 132.7 68.0
29.4
122.2 122.2 123.6 117.8 133.9 89.4
32.2
129.5 129.5 129.5 129.5 135.4 111.6
23.9
111.0 104.6 121.0 75.0 132.1 44.8
26.7
117.2 117.2 122.8 98.4 133.9 70.3
29.4
124.5 124.5 124.5 124.5 135.1 92.6
32.2
131.8 131.8 131.8 131.8 136.5 116.3
23.9
112.5 108.4 122.2 77.1 132.7 45.7 Notes:
26.7
119.0 119.0 123.9 102.3 134.2 71.2
29.4
126.6 126.6 126.9 126.0 136.0 95.8
32.2
134.2 134.2 133.9 133.9 137.7 121.0
1. All capacities shown are gross and have not considered indoor fan heat. To obtain net
cooling, subtract indoor fan heat.
2. TGC = Total gross capacity.
3. SHC = Sensible heat capacity.
RT-PRC033-EN
Performance Data (50 Hz Units)
Table 35. Electric heat air temperature rise (°F) (I-P)—50 Hz
CFM
Heater
Total
Input (kW) MBh 7000 8000 9000 10000 11000 12000 13000 14000 15000 16000 17000
26.9
92
12.1
10.6
9.4
8.5
7.7
7.1
–
–
–
–
–
40.4
138
18.2
15.9
14.1
12.7
11.6
10.6
9.8
9.1
8.5
7.9
7.5
53.8
184
24.2
21.2
18.8
16.9
15.4
14.1
13.0
12.1
11.3
10.6
10.0
67.3
230
30.2
26.5
23.5
21.2
19.2
17.6
16.3
15.1
14.1
13.2
12.5
80.7
276
–
–
–
25.4
23.1
21.2
19.5
18.1
16.9
15.9
14.9
8020
Notes:
1. Air temperature rise = (kW x 3413)/(scfm x 1.085).
2. All heaters on constant volume units provide 2 increments of capacity.
3. Air temperature rise in this table are based on heater operating at 415 volts.
Table 36. Electric heat air temperature rise (°C) (SI)—50 Hz
Heater
Input
(kW)
L/s
3300
3780
4250
4720
5190
5660
6140
6610
7080
7550
26.9
6.8
5.9
5.3
4.7
4.3
4.0
—
—
—
—
—
40.4
10.2
8.9
7.9
7.1
6.5
5.9
5.5
5.1
4.8
4.5
4.2
53.8
13.6
11.9
10.5
9.5
8.6
7.9
7.3
6.8
6.3
5.9
5.6
67.3
17.0
14.8
13.2
11.9
10.8
9.9
9.1
8.5
7.9
7.4
7.0
80.7
—
—
—
14.2
13.0
11.9
11.0
10.2
9.5
8.9
8.4
Notes:
1. Air temperature rise in this table are based on heater operating at 415 volts.
2. All heaters on constant volume units provide 2 increments of capacity.
Table 37. Available electric heat kW ranges—50 Hz
Nominal
Unit Size
Tons
Nominal Voltage (V)
380
415
22.9
23-56
27-67
25.0
23-56
27-67
29.2
23-56
27-67
33.3
34-68
40-81
42.7
34-68
40-81
Note: kW ranges in this table are based on heater operating at nominal
voltages 380 or 415.
Table 38. Natural gas heating capacities—50 Hz
Tons
Unit Model No.
Heat Input MBh
(kW)
Heating Output
MBh (kW)
Air Temp. Rise, °F
(°C)
290,000 (85)
243,000 (69)
10-40 (-12.2, 4.4)
500,000 (147)
405,000 (119)
25-55 (-3.9, 12.8)
335,000 (98)
271,350 (80)
5-35 (-15, 1.6)
670,000 (196)
542,700 (159)
20-50 (-6.7, 10)
YC(D,H,F,R)275**L
22.9-29.2
YC(D,H,F,R)300**L
YC(D,H,F,R)350**L
YC(D,H,F,R)275**H
22.9-29.2
YC(D,H,F,R)300**H
YC(D,H,F,R)350**H
33.3-42.7
33.3-42.7
YC(D,H,F,R)400**L
YC(D,H,F,R)500**L
YC(D,H,F,R)400**H
YC(D,H,F,R)500**H
Note: Total heating capacity.
RT-PRC033-EN
63
Performance Data (50 Hz Units)
Table 39.
Supply fan performance – 22.9-29.1 tons (I-P)
Static Pressure (in. wg)
0.25
0.50
0.75
1.00
1.25
1.50
1.75
2.00
2.25
SCF
M RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
6670
283 0.80 351
1.18
410
1.58
469 2.08 524 2.63 573 3.20 617 3.78 659 4.37 696 4.96
7085
291 0.90 358
1.31
413
1.70
469 2.21 524 2.78 574 3.37 619 3.98 660 4.59 698 5.22
7500
299 1.02 364
1.43
418
1.86
472 2.35 524 2.92 574 3.55 619 4.18 661 4.82 699 5.46
7915
306 1.14 371
1.58
425
2.05
475 2.51 524 3.08 574 3.72 620 4.38 661 5.04 701 5.73
8330
313 1.27 378
1.75
433
2.25
478 2.69 527 3.26 574 3.89 620 4.58 662 5.27 702 5.99
8745
321 1.42 386
1.93
439
2.43
484 2.92 530 3.45 574 4.08 620 4.79 663 5.51 702 6.24
9160
330 1.58 394
2.12
445
2.62
492 3.18 533 3.67 577 4.30 620 4.99 664 5.74 703 6.50
9575
339 1.76 403
2.32
452
2.84
499 3.44 538 3.93 580 4.53 622 5.22 663 5.96 703 6.76
9990
349 1.95 411
2.54
459
3.08
505 3.68 545 4.24 583 4.80 624 5.49 663 6.21 703 7.02
10405 360 2.17 419
2.77
467
3.34
511 3.92 552 4.57 588 5.09 628 5.77 665 6.49 703 7.28
10820 371 2.41 426
3.00
475
3.62
518 4.20 560 4.90 595 5.46 631 6.07 668 6.80 705 7.59
11235 383 2.66 434
3.25
483
3.90
525 4.50 566 5.19 603 5.85 634 6.41 671 7.13 707 7.90
11650 394 2.93 441
3.51
492
4.21
532 4.83 572 5.51 610 6.25 642 6.84 675 7.50 710 8.26
12065 405 3.23 449
3.79
500
4.53
540 5.18 578 5.83 616 6.61 649 7.30 680 7.90 714 8.67
Static Pressure (in. wg)
2.50
2.75
3.00
SCF
M RPM BHP RPM BHP RPM BHP
6670
733 5.60 767
6.23
800
6.88
7085
735 5.86 769
6.52
802
7.18
7500
736 6.13 771
6.82
803
7.49
7915
737 6.40 772
7.10
806
7.83
8330
739 6.70 773
7.41
807
8.16
8745
740 6.99 775
7.73
808
8.49
9160
740 7.25 776
8.06
809
8.83
9575
740 7.54 777
8.38
810
9.17
9990
741 7.83 776
8.65
811
9.51
10405 742 8.14 777
8.99
812
9.86
10820 741 8.41 777
9.31
812 10.21
11235 742 8.74 778
9.63
812 10.55
11650 745 9.11 778
9.96
812 10.89
12065 747 9.47 779 10.34 811 11.24
64
RT-PRC033-EN
Performance Data (50 Hz Units)
Figure 6. Supply fan performance — 22.9-29.1 tons
70
0R
PM
3.0 (747)
70
%
60
%
3.5 (872)
W
OC
FM
50%
80
0R
PM
W
OC
FM
WO
CF
M
Supply Fan Performance
4.0 (996)
60
0R
PM
%
80
2.0(498)
FM
OC
W
15
HP
Static Presure(InWC)
2.5 (623)
10
50
0R
PM
1.5(374)
HP
5
7.
HP
%
90
5
40
0R
PM
1.0 (249)
FM
OC
W
HP
3
HP
0.5 (125)
0.0 (0.0)
0
2000
4000
6000
(0)
(.94)
(1.89)
(2.83)
8000
(3.78)
10000
12000
14000
Volumetric Airflow Rate(CFM)
(4.72)
(5.66)
(6.61)
16000
(7.55)
18000
(8.5)
20000
(9.44)
22000
24000
(10.38)
26000
(11.33)
(12.27)
L/S in 1000's
RT-PRC033-EN
65
Performance Data (50 Hz Units)
Table 40. Supply fan performance – 82-105 kW (SI)
Static Pressure (Pascals)
62.9
124.1
186.2
248.3
310.4
372.5
434.6
496.7
558.8
(L/s) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW)
3148
283
0.59
351
0.88
410
1.17
469
1.55
524
1.96
573
2.39
617
2.82
659
3.26
696
3.70
3344
291
0.67
358
0.98
413
1.27
469
1.65
524
2.07
574
2.52
619
2.97
660
3.42
698
3.89
3539
299
0.76
364
1.07
418
1.39
472
1.75
524
2.18
574
2.64
619
3.12
661
3.59
699
4.07
3735
306
0.85
371
1.18
425
1.53
475
1.87
524
2.29
574
2.77
620
3.26
661
3.76
701
4.27
3931
313
0.95
378
1.30
433
1.68
478
2.01
527
2.43
574
2.90
620
3.41
662
3.93
702
4.46
4127
321
1.06
386
1.44
439
1.81
484
2.18
530
2.58
574
3.04
620
3.57
663
4.11
702
4.65
4323
330
1.18
394
1.58
445
1.95
492
2.37
533
2.74
577
3.21
620
3.72
664
4.28
703
4.84
4519
339
1.31
403
1.73
452
2.12
499
2.56
538
2.93
580
3.38
622
3.89
663
4.45
703
5.04
4715
349
1.45
411
1.89
459
2.30
505
2.74
545
3.17
583
3.58
624
4.09
663
4.63
703
5.23
4910
360
1.62
419
2.06
467
2.49
511
2.93
552
3.40
588
3.79
628
4.31
665
4.84
703
5.43
5106
371
1.80
426
2.24
475
2.70
518
3.13
560
3.65
595
4.07
631
4.53
668
5.07
705
5.66
5302
383
1.98
434
2.42
483
2.91
525
3.36
566
3.87
603
4.37
634
4.78
671
5.32
707
5.89
5498
394
2.19
441
2.62
492
3.14
532
3.60
572
4.11
610
4.66
642
5.10
675
5.59
710
6.16
5694
405
2.41
449
2.83
500
3.38
540
3.87
578
4.35
616
4.93
649
5.44
680
5.89
714
6.46
Static Pressure (Pascals)
620.9
683.0
745.1
(L/s) RPM (kW) RPM (kW) RPM (kW)
3148
733
4.18
767
4.65
800
5.13
3344
735
4.37
769
4.86
802
5.36
3539
736
4.57
771
5.08
803
5.58
3735
737
4.77
772
5.29
806
5.84
3931
739
5.00
773
5.53
807
6.08
4127
740
5.21
775
5.76
808
6.33
4323
740
5.41
776
6.01
809
6.58
4519
740
5.62
777
6.25
810
6.84
4715
741
5.84
776
6.45
811
7.09
4910
742
6.07
777
6.70
812
7.35
5106
741
6.27
777
6.94
812
7.62
5302
742
6.52
778
7.18
812
7.87
5498
745
6.79
778
7.43
812
8.12
5694
747
7.06
779
7.71
811
8.38
Notes:
1. Supply fan performance table includes internal resistance of rooftop. For total static pressure determination, system external static must be added to
appropriate component static pressure drops, (evaporator coil, filters, optional economizer, optional heating system, optional roof curb).
2. The pressure drops from the supply fan to the space should not exceed 2.25” (558.8 Pa) positive.
3. Maximum air flow 23 ton (80 kW) is 4756 L/s, 25 ton is 5190 L/s, 29 ton is 5663 L/s
4. Maximum motor kW for 23 ton unit is 7.5 kW (10 hp), 25 ton is 7.5 kW (10 hp), 29 ton is 11.2 kW (15 hp).
66
RT-PRC033-EN
Performance Data (50 Hz Units)
Table 41.
Supply fan performance – 33.3 and 41.7 tons (I-P)
Static Pressure (in. wg)
0.25
0.50
0.75
1.00
1.25
1.50
1.75
2.00
2.25
CFM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
9996
273
1.46
324
1.95
372
2.49
417
3.04
458
3.64
495
4.25
535
4.92
572
5.59
605
6.23
10829
287
1.78
336
2.30
383
2.87
422
3.44
464
4.06
501
4.71
535
5.38
572
6.11
606
6.81
11662
301
2.14
348
2.69
390
3.27
432
3.91
469
4.53
506
5.21
541
5.91
573
6.64
607
7.41
12495
315
2.53
360
3.12
401
3.74
442
4.41
476
5.07
512
5.76
546
6.49
578
7.24
609
8.03
13328
329
2.96
373
3.60
412
4.27
450
4.94
486
5.67
518
6.38
551
7.12
584
7.91
614
8.71
14161
344
3.45
387
4.14
424
4.85
459
5.55
495
6.31
527
7.08
557
7.83
589
8.62
619
9.45
14994
358
3.99
401
4.77
437
5.48
470
6.23
503
6.98
538
7.83
565
8.61
594
9.41
625
10.27
15827
373
4.58
415
5.45
449
6.17
482
6.98
513
7.75
546
8.61
576
9.46
602
10.30
630
11.14
16660
388
5.24
429
6.19
463
6.93
495
7.78
525
8.61
554
9.43
586
10.36
613
11.26
637
12.13
Static Pressure (in. wg)
2.50
2.75
3.00
3.25
3.50
CFM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
9996
636
6.90
665
7.63
691
8.35
717
9.10
743
9.87
10829
638
7.53
669
8.24
697
8.99
722
9.77
748
10.57
11662
639
8.17
671
8.97
699
9.73
727
10.47
751
11.26
12495
639
8.82
670
9.66
700
10.49
728
11.33
755
12.13
13328
642
9.52
671
10.38
700
11.27
729
12.17
756
13.04
14161
648
10.31
674
11.16
702
12.08
730
13.01
757
13.96
14994
653
11.13
680
12.03
706
12.96
731
13.87
757
14.88
15827
659
12.04
686
12.99
711
13.92
737
14.90
761
15.87
16660
664
13.04
691
13.97
717
14.94
742
15.96
765
16.94
Figure 7.
BHP
Supply fan performance – 33.3 and 41.7 tons (I-P)
Supply Fan Performance 40 and 50 Ton
50
%
40%
80
0R
PM
W
OC
FM
WO
CF
M
5 (1245)
4 (996)
75
0R
PM
%
60
FM
OC
W
3 (747)
65
0R
PM
60
0R
PM
%
70
55
0R
PM
50
0R
PM
45
0R
PM
40
0R
PM
35
0R
PM
30
0R
PM
2 (498)
HP
15
HP
10
HP
80%
M
CF
WO
5
7.
1 (249)
FM
OC
W
20
Static Presure(InWC)
70
0R
PM
HP
CFM
WO
90%
0 (0.0)
0
2000
4000
(0)
(.94)
(1.89)
6000
(2.83)
8000
(3.78)
10000
(4.72)
12000 14000 16000 18000
Volumetric Airflow Rate(CFM)
(5.66)
(6.61)
(7.55)
(8.5)
20000
(9.44)
22000
24000
(10.38)
(11.33)
26000
28000
(12.27)
(13.22)
L/S in 1000's
RT-PRC033-EN
67
Performance Data (50 Hz Units)
Table 42.
Supply fan performance – 105-148 kW (SI)
Static Pressure (Pascals)
62.1
(L/s)
124.2
RPM (kW) RPM
(kW)
186.3
248.1
310.4
372.5
434.6
496.7
558.8
RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW)
4717
273
1.09
324
1.46
372
1.86
417
2.27
458
2.72
495
3.17
535
3.67
572
4.17
605
4.64
5111
287
1.33
336
1.72
383
2.14
422
2.57
464
3.03
501
3.51
535
4.01
572
4.55
606
5.08
5504
301
1.59
348
2.00
390
2.44
432
2.91
469
3.38
506
3.88
541
4.41
573
4.95
607
5.52
5897
315
1.88
360
2.33
401
2.79
442
3.29
476
3.78
512
4.30
546
4.84
578
5.40
609
5.99
6290
329
2.21
373
2.68
412
3.19
450
3.69
486
4.23
518
4.76
551
5.31
584
5.90
614
6.49
6683
344
2.57
387
3.09
424
3.62
459
4.14
495
4.70
527
5.28
557
5.84
589
6.43
619
7.05
7076
358
2.97
401
3.56
437
4.09
470
4.65
503
5.21
538
5.84
565
6.42
594
7.02
625
7.66
7469
373
3.42
415
4.07
449
4.60
482
5.20
513
5.78
546
6.42
576
7.06
602
7.68
630
8.31
7862
388
3.91
429
4.61
463
5.17
495
5.80
525
6.42
554
7.03
586
7.73
613
8.40
637
9.05
Static Pressure (Pascals)
620.9
(L/s)
683.0
RPM (kW) RPM
(kW)
745.1
807.2
869.3
RPM (kW) RPM (kW) RPM (kW)
4717
636
5.14
665
5.69
691
6.22
717
6.78
743
7.36
5111
638
5.62
669
6.14
697
6.70
722
7.28
748
7.88
5504
639
6.09
671
6.69
699
7.25
727
7.81
751
8.40
5897
639
6.57
670
7.20
700
7.83
728
8.45
755
9.05
6290
642
7.10
671
7.74
700
8.41
729
9.07
756
9.72
6683
648
7.69
674
8.32
702
9.01
730
9.71
757
10.41
7076
653
8.30
680
8.97
706
9.66
731
10.35
757
11.10
7469
659
8.98
686
9.69
711
10.38
737
11.11
761
11.84
7862
664
9.72
691
10.42
717
11.14
742
11.90
765
12.63
Notes:
1. Supply fan performance table includes internal resistance of rooftop. For total static pressure determination, system external static must be added to
appropriate component static pressure drops, (evaporator coil, filters, optional economizer, optional heating system, optional roof curb).
2. The pressure drops from the supply fan to the space should not exceed 2.5” wg (620.9 Pa) positive.
3. Max cfm for 33 ton unit 6825 L/s, 42 ton -7860 L/s
4. Max motor hp for 33 ton unit-11.2 kW (15 hp), 42 ton 14.9 kW (20 hp)
68
RT-PRC033-EN
Performance Data (50 Hz Units)
Table 43. Component static pressure drops — in. wg (I-P)
Heating System
Filters
Gas Heat
Electric Heat
Nominal
Std Tons CFM
1
2
(kW) Std Air Low High Element Elements
23 (80)
25 (88)
29 (103)
33 (118)
42 (146)
ID Coil
MERV
Throw- MERV 8 High 14 High
away
Eff.
Eff.
Dry
Wet
2”
2”
4”
4”
Hot
Gas
Reheat
Economizer Coil
6670
0.07
0.05
0.04
0.05
0.09
0.14
0.05
0.08
0.07
0.20
0.331
0.05
7500
0.08
0.07
0.06
0.06
0.11
0.17
0.07
0.11
0.1
0.24
0.04
0.07
8330
0.1
0.08
0.07
0.08
0.13
0.20
0.08
0.13
0.12
0.28
0.049
0.08
9170
0.13
0.1
0.08
0.09
0.15
0.23
0.09
0.15
0.14
0.32
0.059
0.10
10000
0.15
0.12
0.1
0.11
0.17
0.26
0.11
0.18
0.16
0.37
0.07
0.12
7500
0.08
0.07
0.06
0.06
0.11
0.17
0.07
0.11
0.1
0.24
0.04
0.07
8330
0.1
0.08
0.07
0.08
0.13
0.20
0.08
0.13
0.12
0.28
0.049
0.08
9170
0.13
0.1
0.08
0.09
0.15
0.23
0.09
0.15
0.14
0.32
0.059
0.10
10000
0.15
0.12
0.1
0.11
0.17
0.26
0.11
0.18
0.17
0.37
0.07
0.12
8750
0.11
0.09
0.08
0.08
0.18
0.28
0.09
0.15
0.13
0.30
0.054
0.09
9580
0.14
0.11
0.09
0.1
0.21
0.32
0.1
0.17
0.16
0.34
0.065
0.11
11200
0.19
0.15
0.13
0.14
0.28
0.41
0.12
0.21
0.19
0.43
0.077
0.15
12100
0.22
0.17
0.15
0.16
0.31
0.46
0.13
0.22
0.21
0.48
0.091
0.17
10000
0.01
0.03
0.07
0.11
0.18
0.28
0.11
0.18
0.16
0.37
70
0.04
10800
0.01
0.03
0.08
0.13
0.20
0.31
0.12
0.21
0.18
0.41
0.076
0.05
11700
0.01
0.04
0.1
0.15
0.23
0.35
0.13
0.23
0.2
0.46
0.085
0.05
12500
0.01
0.04
0.11
0.17
0.26
0.39
0.14
0.26
0.23
0.50
0.096
0.06
13300
0.02
0.05
0.12
0.19
0.29
0.42
0.15
0.28
0.25
0.55
0.107
0.07
14200
0.02
0.06
0.14
0.22
0.32
0.46
0.17
0.32
0.28
0.61
0.12
0.08
12500
0.01
0.04
0.11
0.17
0.33
0.48
0.14
0.26
0.23
0.50
0.095
0.06
13300
0.02
0.05
0.12
0.19
0.36
0.53
0.15
0.28
0.25
0.55
0.108
0.07
14200
0.02
0.06
0.16
0.24
0.40
0.58
0.17
0.34
0.29
0.61
0.12
0.08
15800
0.02
0.07
0.18
0.27
0.48
0.68
0.19
0.38
0.34
0.71
0.136
0.10
16700
0.03
0.08
0.2
0.3
0.53
0.74
0.2
0.41
0.36
0.77
0.155
0.11
Note: Static pressure drops of accessory components must be added to external static pressure to enter fan performance tables.
RT-PRC033-EN
69
Performance Data (50 Hz Units)
Table 44. Component static pressure drops — Pa (SI)
Heating System
Nominal
Std Tons
(kW)
23 (80)
25 (88)
29 (103)
33 (118)
42 (146)
L/s
Std
Air
Gas Heat
Filters
Electric Heat
1
2
Low High Element Elements
ID Coil
Dry
Wet
Throwaway
MERV 8
High Eff.
50 mm 50 mm
MERV
14 High
Eff.
100
mm
100
mm
Hot Gas
Reheat
Economizer
Coil
3150
17
13
11
12
21
34
12
19
17
51
0.05
13
3540
21
16
14
15
26
41
17
26
24
60
0.07
17
3930
26
20
17
19
30
48
19
31
29
70
0.08
20
4320
31
24
21
23
36
55
22
36
34
80
0.1
25
4720
37
29
25
27
41
62
26
43
38
91
0.12
29
3540
21
16
14
15
26
41
17
26
24
60
0.07
17
3930
26
20
17
19
30
48
19
31
29
70
0.08
20
4320
31
24
21
23
36
55
22
36
34
80
0.12
25
5120
44
34
29
32
41
62
26
43
41
91
0.14
29
4130
29
22
19
21
44
68
22
36
31
75
0.09
23
4520
34
27
23
25
51
78
24
41
38
86
0.11
27
4920
41
32
27
29
66
97
29
50
46
107
0.13
37
5310
47
37
32
34
75
109
31
53
50
120
0.15
43
4720
2
7
18
27
43
67
26
43
38
91
0.12
10
5120
3
8
21
32
49
75
29
50
43
102
0.14
11
5510
3
10
24
37
56
84
31
55
48
114
0.16
13
5900
4
11
27
42
62
92
34
62
55
126
0.18
15
6290
4
12
31
48
69
101
36
67
60
137
0.21
17
6680
5
14
35
54
77
111
41
77
67
151
0.24
20
5900
4
11
27
42
78
115
34
62
55
126
0.18
15
6290
4
12
31
48
86
126
36
67
60
137
0.21
17
6680
5
14
35
54
96
139
41
82
72
151
0.24
20
7070
5
16
39
60
115
162
46
91
82
176
0.27
24
7470
6
18
44
67
126
176
48
98
86
191
0.3
27
Note: Static pressure drops of accessory components must be added to external static pressure to enter fan performance tables.
70
RT-PRC033-EN
Performance Data (50 Hz Units)
Table 45. Supply air fan drive selections
Nominal
Tons (kW)
23 (80)
25 (88)
29 (103)
33 (118)
42 (146)
7.5 hp (5.6 kW)
10 hp (7.5 kW)
15 hp (10 kW)
20 hp (15 kW)
rpm
Drive No
rpm
Drive No
rpm
Drive No
rpm
Drive No
458
A
—
—
—
—
—
—
500
B
—
—
—
—
—
—
—
541
C
—
—
—
—
—
583
—
583
D
—
—
—
—
625
—
6251.
E
—
—
—
—
458
A
—
—
—
—
—
—
500
B
—
—
—
—
—
—
541
C
—
—
—
—
—
—
583
—
583
D
—
—
—
—
625
—
625
E
—
—
—
—
500
B
—
—
—
—
—
—
541
—
541
C
—
—
—
—
583
—
583
D
—
—
—
—
658
—
—
—
6582.
F
—
—
664
—
—
—
6641.
G
—
—
417
—
417
H
—
—
—
—
437
—
437
J
—
—
—
—
479
—
479
K
—
—
—
—
521
—
—
—
521
L
—
—
562
—
—
—
562
M
—
—
604
—
—
—
604
N
—
—
437
—
437
J
—
—
—
—
479
—
479
K
—
—
—
—
521
—
—
—
521
L
—
—
562
—
—
—
562
M
—
—
604
—
—
—
—
—
604
N
1. For YC gas/electrics only.
2. For TC and TE Cooling only and with electric Heat units only.
Table 46. Power exhaust fan performance—22.9 - 29.2 tons—50 Hz
Power Exhaust Selection
50%
100%
Damper Blade Open Distance (mm)
38.1 (min)
101.6 (max)
38.1 (min)
101.6 (max)
0.0
1499
2701
24.9
2999
5405
1375
2083
2751
4166
49.8
1255
1753
2488
3540
74.7
1134
1499
2269
3003
99.6
1031
1321
2061
2643
124.5
921
1135
1842
2270
Return Duct Static
(Pa)
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L/s
71
Performance Data (50 Hz Units)
Table 47. Power exhaust fan performance—33.3 - 41.7 tons—50 Hz
Power Exhaust Selection
50%
100%
Damper Blade Open Distance (mm)
38.1 (min)
101.6 (max)
38.1 (min)
101.6 (max)
0.0
1909
3160
3818
6321
24.9
49.8
1800
2915
3599
5829
1676
2537
3364
5308
74.7
1577
2371
3155
4741
99.6
1462
2173
2925
4347
124.5
1364
2040
2727
4080
Return Duct Static
(Pa)
L/S
Note: These values are the minimum and maximum positions for non-tracking power exhaust. Fresh air tracking and Statitrac
options can fully close the exhaust dampers in their operation, and are thus able to reach lower airflows. Statitrac requires
100% power exhaust.
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Controls
VAV Units Only—Sequence of Operation
Supply Air Pressure Control
Variable Frequency Drives (VFD) Control
Variable frequency drives are driven by a modulating 0-10 Vdc signal from the VAV module. A
pressure transducer measures duct static pressure, and the VFD is modulated to maintain the
supply air static pressure within an adjustable user-defined range. The range is determined by the
supply air pressure setpoint and supply air pressure deadband, which are set through a unit
mounted potentiometer. Variable frequency drives provide supply fan motor speed modulation.
The drive will accelerate or decelerate as required to maintain the supply static pressure setpoint.
When subjected to high ambient return conditions the VFD shall reduce its output frequency to
maintain operation. Bypass control is offered to provide full nominal airflow in the event of drive
failure.
Supply Air Static Pressure Limit
The control of the VFD and VAV boxes are coordinated, with respect to time, during unit start up
and transition to/from Occupied/Unoccupied modes to prevent overpressurization of the supply air
ductwork. However, if for any reason the supply air pressure exceeds the fixed supply air static
pressure limit of 3.5” W.C., the supply fan is shut down and the VAV boxes are closed. The unit is
then allowed to restart three times. If the overpressurization condition occurs on the fourth time,
the unit is shut down and a manual reset diagnostic is set and displayed at any of the remote panels
with LED status lights or communicated to the Integrated Comfort system.
Supply Air Temperature Controls
Cooling/Economizer
During occupied cooling mode of operation, the economizer (if available) and primary cooling are
used to control the supply air temperature. The supply air temperature setpoint is user-defined at
the unit mounted VAV Setpoint Potentiometer or at the remote panel. If the enthalpy of the outside
air is appropriate to use “free cooling,” the economizer will be used first to attempt to satisfy the
supply setpoint.
On units with economizer, a call for cooling will modulate the fresh air dampers open. The rate of
economizer modulation is based on deviation of the discharge temperature from setpoint, i.e., the
further away from setpoint, the faster the fresh air damper will open. Note that the economizer is
only allowed to function freely if ambient conditions are below the enthalpy control setting or
below the return air enthalpy if unit has comparative enthalpy installed. If outside air is not suitable
for “economizing,” the fresh air dampers drive to the minimum open position. A field adjustable
potentiometer on the Economizer Actuator, Tracer™, or a remote potentiometer can provide the
input to establish the minimum damper position.
At outdoor air conditions above the enthalpy control setting, primary cooling only is used and the
fresh air dampers remain at minimum position.
If the unit does not include an economizer, primary cooling only is used to satisfy cooling
requirements.
Supply Air Setpoint Reset
Supply air reset can be used to adjust the supply air temperature setpoint on the basis of a zone
temperature, return air temperature, or on outdoor air temperature. Supply air reset adjustment
is available on the unit mounted VAV Setpoint Potentiometer for supply air cooling control.
a. Reset Based on Outdoor Air Temperature. Outdoor air cooling reset is sometimes used in
applications where the outdoor temperature has a large effect on building load. When the outside
air temperature is low and the building cooling load is low, the supply air setpoint can be raised,
thereby preventing subcooling of critical zones. This reset can lower usage of primary cooling and
result in a reduction in primary cooling energy usage.
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Controls
There are two user-defined parameters that are adjustable through the VAV Setpoint
Potentiometer: reset temperature setpoint and reset amount. The amount of reset applied is
dependent upon how far the outdoor air temperature is below the supply air reset setpoint. The
amount is zero where they are equal and increases linearly toward the value set at the reset amount
input. The maximum value is 20°F. If the outdoor air temperature is more than 20°F below the reset
temperature setpoint the amount of reset is equal to the reset amount setpoint.
b. Reset Based on Zone or Return Temperature. Zone or return reset is applied to the zone(s)
in a building that tend to overcool or overheat. The supply air temperature setpoint is adjusted
based on the temperature of the critical zone(s) or the return air temperature. This can have the
effect of improving comfort and/or lowering energy usage. The user-defined parameters are the
same as for outdoor air reset.
Logic for zone or return reset control is the same except that the origins of the temperature inputs
are the zone sensor or return sensor respectively. The amount of reset applied is dependent upon
how far the zone or return air temperature is below the supply air reset setpoint. The amount is zero
where they are equal and increases linearly toward the value set at the reset amount potentiometer
on the VAV Setpoint potentiometer. The maximum value is 3°F. If the return or zone temperature
is more than 3°F below the reset temperature setpoint the amount of reset is equal to the reset
amount setpoint.
VAV Supply Air Tempering (Only Available with Modulating Gas Heat)
Gas heat will be modulated to prevent the Discharge Air Temperature from falling below the
Discharge Air Temperature Deadband. Upon satisfying the Supply Air Tempering requirements a
five-minute ‘SA Tempering Delay’ timer will start whenever the modulating heat is commanded to
0% and must time out before the unit will be allowed to re-enter “Cool” mode. This timer will be
reset to 5 minutes whenever there is an active call for heat to meet Supply Air Tempering demands.
Tempering will be discontinued whenever:
– The five-minute ‘SA Tempering Delay’ timer has timed-out and
– there is an active cooling request for VAV Occupied Cooling
Zone Temperature Control
Unoccupied Zone Heating and Cooling
During Unoccupied mode, the unit is operated as a CV unit. VAV boxes are driven full open and the
VFD is commanded to full speed. The unit controls zone temperature to the Unoccupied zone
cooling and heating (heating units only) setpoints.
Daytime Warm-up
During occupied mode, if the zone temperature falls to a temperature three degrees below the
Morning Warm-up setpoint, Daytime Warm-up is initiated. The system changes to CV heating (full
unit airflow), the VAV boxes are fully opened and the CV heating algorithm is in control until the
Morning Warm-up setpoint is reached. The unit is then returned to VAV cooling mode. The Morning
Warm-up setpoint is set at the unit mounted VAV Setpoint potentiometer or at a remote panel.
Morning Warm-up (MWU)
Morning warm-up control (MWU) is activated whenever the unit switches from unoccupied to
occupied and the zone temperature is at least 1.5°F below the MWU setpoint. When MWU is
activated the VAV box output will be energized for at least 6 minutes to drive all boxes open, the
VFD is commanded to full speed, and full heat (gas or electric) is energized. When MWU is activated
the economizer damper is driven fully closed. When the zone temperature meets or exceeds the
MWU setpoint minus 1.5°F, the heat will be turned or staged down. When the zone temperature
meets or exceeds the MWU setpoint then MWU will be terminated and the unit will switch over to
VAV cooling.
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Controls
CV Units Only—Sequence of Operation
Occupied Zone Temperature Control
Cooling/Economizer. During occupied cooling mode, the economizer (if provided) and primary
cooling are used to control zone temperature. If the enthalpy of outside air is appropriate to use
“free cooling,” the economizer will be used first to attempt to satisfy the cooling zone temperature
setpoint; then primary cooling will be staged up as necessary.
On units with economizer, a call for cooling will modulate the fresh air dampers open. The rate of
economizer modulation is based on deviation of the zone temperature from setpoint, i.e., the
further away from setpoint, the faster the fresh air damper will open. First stage of cooling will be
allowed to start after the economizer reaches full open.
Note: The economizer is allowed to function freely only if ambient conditions are below the
enthalpy control setting or below the return air enthalpy if unit has comparative enthalpy.
If outside air is not suitable for “economizing,” the fresh air dampers drive to the minimum
open position. A field adjustable potentiometer on the Economizer Actuator, a
communicated value through Tracer, or a remote potentiometer can provide the input to
establish the minimum damper position.
At outdoor air temperatures above the enthalpy control setting, primary cooling only is used and
the outdoor air dampers remain at minimum position.
If the unit does not include an economizer, primary cooling only is used to satisfy cooling
requirements.
Heating
Gas Heating
When heating is required the RTRM initiates the heating cycle through the ignition control
module(s) (IGN). The IGN relay brings on the combustion fan motor. The ignition control module(s)
begin the ignition process by preheating the hot surface ignitor(s). After the hot surface ignitor is
preheated the gas valve is opened to ignite first stage. If ignition does not take place the IGN(s) will
attempt to ignite 2 more times before locking out. When ignition does occur the hot surface ignitor
is deenergized and then functions as a flame sensor. The RTRM will energize the supply fan
contactor 45 seconds after the initiation of the heat cycle. If more capacity is needed to satisfy the
heating setpoint, the RTRM will call for more heat by driving the combustion blower motor to high
speed.
When the space temperature rises above the heating setpoint, the RTRM terminates the heat cycle.
Electric Heating
When heat is required, the RTRM initiates first stage heating by energizing the first stage electric
heat contactor. The first stage electric heater bank(s) will be energized if the appropriate limits are
closed. The RTRM will cycle first stage heat on and off as required to maintain zone temperature.
If first stage cannot satisfy the requirement, the RTRM will energize the second stage electric heat
contactor(s) if the appropriate limits are closed. The RTRM will cycle second stage on and off as
required while keeping stage one energized.
The supply fan is energized approximately 1 second before the electric heat contactors. When the
space temperature rises above the heating setpoint, the RTRM deenergizes the supply fan and all
electric heat contactors.
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75
Controls
Supply Air Tempering
Staged Heat. For CV units configured with a Staged Heat design (Electric or Gas) and the Supply
Air Tempering operation is enabled, if the following items are true, the unit will enter Supply Air
Tempering mode:
1. The supply fan is ON.
2. The unit is in Occupied mode.
3. Zone Temp. is less than the active Cooling setpoint.
4. The unit is in Heat mode but is not actively heating OR
5. The unit is in AUTO-COOL mode but not actively cooling and cooling capacity has been OFF for
5 minutes.
Once the above conditions are met, if the supply air temperature drops to 10°F BELOW the
Occupied Heating Zone Temperature Setpoint, the SA Tempering function will bring ON one stage
of gas or electric heat.
Once SA Tempering is active, heating will be turned OFF if the Supply Air Temperature rises to 10°F
ABOVE the Active Occupied Zone Heating Setpoint, or the Zone Temperature rises to the Active
Zone Cooling Setpoint. Also, if the Zone Heat Control function is calling for 1 or more stages of Heat,
Tempering will be discontinued and the unit will stage additional heating to meet the current
demand.
Modulating Heat. On units with Modulating Gas Heat, Supply Air Tempering is inherent to the
Modulating Heat design and does not require any additional configuration/enabling. Modulating
Heat Tempering is accomplished by allowing the unit to return to heating if the zone is marginally
satisfied and the Discharge Air temperature begins to fall. The following conditions must be true
to enable the unit to perform “Tempering”:
1. The supply fan is ON.
2. The unit is in Occupied mode.
3. Zone Temp. is less than the active Cooling setpoint.
4. The unit is in Heat mode but is not actively heating OR
5. The unit is in AUTO-COOL mode but not actively cooling and cooling capacity has been OFF for
5 minutes.
Once the above conditions are met, and the supply air temperature drops below the ZHSP - 10°F,
the unit will transition back into active heating operation and will begin to control the modulating
heat output to maintain the supply air temperature.
Once the unit has entered into Tempering mode, the unit will leave active heating either by normal
heat termination as determined by the heating control algorithm or when the Zone Temperature
reaches the active ZCSP.
Auto Changeover
When the System Mode is “Auto,” the mode will change to cooling or heating as necessary to satisfy
the zone cooling and heating setpoints. The zone cooling and heating setpoints can be as close as
2°F apart.
Unoccupied Zone Temperature Control Cooling and Heating
Both cooling or heating modes can be selected to maintain Unoccupied zone temperature
setpoints. For Unoccupied periods, heating or primary cooling operation can be selectively locked
out at the remote panels or TRACER.
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RT-PRC033-EN
Controls
Conventional Thermostat Interface
Conventional Thermostat Interface (CTI) is a standard part of the RTRM. The CTI will allow only two
steps of heating or cooling. The CTI provides zone temperature control only and is mutually
exclusive of the Trane Communications Interface (TCI).
Note: If a conventional thermostat is used with a unit that has modulating gas heat, the heat will
not perform as intended).
Single Zone VAV Units Only (SZ VAV)—Sequence of Operation
Zone Temperature Control
Variable Frequency Drives (VFD) Control
A Variable frequency drive is used to provide supply fan motor speed modulation. For SZ VAV the
VFD is driven by a modulating 0-10Vdc signal from the Options module. For SZ VAV control, the
drive will accelerate or decelerate as required to meet the Zone Heating (Modulating Heat Only) or
Cooling demand. In order to maximize energy savings, the VFD will be held at minimum speed until
the load in the zone requires the speed to increase.
Note: To enhance unit performance, the minimum VFD speed is modified based on unit function
(Heating, Cooling, Ventilation Only).
Cooling Operation (DX and Economizer)
During active cooling mode, the economizer (if provided) and primary cooling are used to control
the discharge air temperature to a calculated discharge air temperature setpoint. The calculated
discharge air setpoint is based on the zone cooling demand and its upper and lower limits will be
customer selectable through potentiometers located on the Options module or through a BAS. If
available cooling capacity (economizer and DX cooling) is not sufficient to meet the load demands
in the space, the supply fan motor speed will be modulated in order to meet the load. If the enthalpy
of outside air is appropriate to use “free cooling,” the economizer will be used first to attempt to
satisfy the cooling zone temperature setpoint (as on a traditional CV unit); then primary cooling will
be staged up as necessary.
On units with an economizer, a call for cooling will modulate the fresh air dampers open. The rate
of economizer modulation is based on deviation of the zone temperature from setpoint: the further
away from setpoint, the faster the fresh air damper will open. First stage of cooling will be allowed
to start after the economizer reaches full open. Once compressors are staged to meet the zone
demand, the economizer position will be held full open, as long as the economizer remains
enthalpy enabled, to ensure the maximum cooling capacity of the economizer is being utilized.
Note: The economizer is allowed to function freely only if ambient conditions are below the
enthalpy control setting or below the return air enthalpy if unit has comparative enthalpy
as on traditional CV and VAV units. If outside air is not suitable for “economizing”, the fresh
air dampers drive to the active minimum open position. Field adjustable potentiometers on
the Economizer Actuator, a communicated value through Tracer, or a remote potentiometer
can provide the input to establish the minimum damper position.
If outside air temperatures are not favorable for economizer operation, primary cooling only is used
and the outdoor air dampers remain at minimum position.
If the unit does not include an economizer, primary cooling only is used to satisfy cooling
requirements.
Heating Operation
Units with SZ VAV control will operate heat utilizing two different schemes based on the installed
heating type; Staged or Modulating.
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77
Controls
Staged Heat. Units configured with Staged Heat (all Electric and Staged Gas) will perform
Heating utilizing the traditional CV Heating control schemes with full airflow from the VFD
controlled supply fan. No other changes in heating operation are implemented for Staged Heating
types - all Gas and Electric Heat staging will remain consistent with CV units.
Modulating Heat. Units configured with Modulating Gas Heat will also benefit from supply fan
speed modulation to meet the heating demands of the zone, similarly to during active Cooling
operation. During active heating mode, the modulating heat output is commanded to control the
discharge air temperature to a calculated discharge air temperature setpoint. The calculated
discharge air setpoint is based on the zone heating demand and its upper and lower limits will be
customer selectable through potentiometers located on the Options module. If available heating
capacity is not sufficient to meet the load demands in the space, the supply fan motor speed will
be modulated in order to meet the load. Note that Gas Heat ignition sequences will be consistent
with traditional CV units as well as all applicable protection schemes.
Supply Air Tempering
Units with SZ VAV control will operate Supply Air Tempering utilizing two different schemes based
on the installed heating type; Staged or Modulating.
Staged Heat
Units configured with Staged Heat (all Electric and Staged Gas) will perform Supply Air Tempering
utilizing the traditional CV Supply Air Tempering control scheme with full airflow from the VFD
controlled supply fan.
Modulating Heat
Units configured with Modulating Gas Heat will perform Tempering as an extension of normal
Heating control. When the following conditions are met, the unit will enter into a “Tempering”
mode:
1. Supply Fan is ON.
2. The unit is in Occupied mode.
3. The unit is operating in Auto-Cool Mode.
4. Cooling has been inactive for 5 minutes.
5. Zone Temperature is less than ZCSP - 1°F
If the above conditions are met and the discharge air temperature falls below the user configurable
Discharge Air Cool Low Limit setpoint, the unit will begin to control the modulating heat output to
maintain the discharge air temperature requirements. Note that Tempering within a modulating
heat unit is inherent to the Modulating Heat control design and does not require any additional
configuration - it is an extension of normal Heating control.
Auto Changeover
When the System Mode is “Auto”, the mode will change to cooling or heating as necessary to satisfy
the zone cooling and heating setpoints as on a CV unit. The zone cooling and heating setpoints can
be as close as 2°F apart.
Unoccupied Zone Temperature Control Cooling and Heating
Unoccupied Heating and Cooling operation will be controlled as during normal Occupied operation
but will utilize the Unoccupied Heating and Cooling setpoints as on a CV unit.
Conventional Thermostat Interface
Single Zone VAV control is not available utilizing the Conventional Thermostat Interface; a Zone
Sensor is required for Single Zone VAV operation.
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RT-PRC033-EN
Controls
Control Sequences of Operation Common to CV, VAV, and SZ VAV
Ventilation Override (VOM)
Applying 24 volts to one of the three Ventilation Override inputs manually activates ventilation
override. One input is provided to request the pressurize mode, the second input to request the
purge mode, and the third input to request the exhaust mode.
Note: Ventilation override exhaust mode is not available for the exhaust fan with fresh air tracking
power exhaust. VOM is available for the exhaust fan without fresh air tracking power
exhaust.
If more than one mode is requested at the same time, the pressurize request will have priority
followed by purge. When any ventilation override mode is active, all heating and cooling is turned
off. For the case where the unit is required to turn off, the emergency stop input is used. The ICS
can also initiate any ventilation override mode.
Table 48. Mode and priority
Mode and Priority
Affected Function
Pressurize 1
Purge 2
Exhaust 3
Heat/Cool
off
off
off
VFD
full speed
full speed
full speed
Supply Fan
on
on
off
Exhaust Fan
off
on
n/a(a)
Economizer
open
open
closed
VAV Boxes
forced open
forced open
normal operation
(a) Ventilation override exhaust mode is not available for the exhaust fan with fresh air tracking power exhaust. VOM is available for the exhaust fan without fresh air tracking power exhaust.
Coil Freeze Protection FROSTAT™
The FROSTAT system eliminates the need for hot gas bypass and adds a suction line surface
temperature sensor to determine if the coil is in a condition of impending frost. If impending frost
is detected primary cooling capacity is shed as necessary to prevent icing. All compressors are
turned off after they have met their minimum 3 minute on times. The supply fan is forced on until
the FROSTAT device no longer senses a frosting condition or for 60 seconds after the last
compressor is shut off, whichever is longer.
Occupied/Unoccupied Switching
There are 3 ways to switch Occupied/Unoccupied:
1. NSB Panel
2. Electronic time clock or field-supplied contact closure
3. TRACER
Space Pressure Control - Statitrac™
A pressure transducer is used to measure and report direct space (building) static pressure. The
user-defined control parameters used in this control scheme are space static pressure set point and
deadband. As the economizer opens, the building pressure rises and enables the exhaust fan and
dampers. The exhaust dampers then modulate to maintain space pressure within the deadband.
Night Setback Sensors
Trane’s night setback sensors are programmable with a time clock function that provides
communication to the rooftop unit through a 2-wire communications link. The desired transition
times are programmed at the night setback sensor and communicated to the unit.
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Controls
Night setback (unoccupied mode) is operated through the time clock provided in the sensors with
night setback. When the time clock switches to night setback operation, the outdoor air dampers
close and heating/cooling can be enabled or disabled. As the building load changes, the night
setback sensor communicates the need for the rooftop heating/cooling (if enabled) function and the
evaporator fan. The rooftop unit will cycle through the evening as heating/cooling (if enabled) is
required in the space. When the time clock switches from night setback to occupied mode, all
heating/cooling functions begin normal operation.
When using the night setback options with a VAV heating/cooling rooftop, airflow must be
maintained through the rooftop unit. This can be accomplished by electrically tying the VAV boxes
to the VAV heat relay contacts on the Low voltage terminal board or by using changeover
thermostats. Either of these methods will assure adequate airflow through the unit and satisfactory
temperature control of the building.
Timed Override Activation—ICS
When this function is initiated by pushing the override button on the ICS sensor, TRACER will switch
the unit to the occupied mode. Unit operation (occupied mode) during timed override is terminated
by a signal from TRACER or through pushing the override cancel button on the ICS sensor.
Timed Override Activation—Non-lCS
When this function is initiated by the push of an override button on the programmable zone sensor,
the unit will switch to the occupied mode. Automatic Cancellation of the Timed override Mode
occurs after three hours of operation or through cancellation of timed override through the
programmable zone sensor interface.
Comparative Enthalpy Control of Economizer
The Economizer Actuator receives inputs from optional return air humidity and temperature
sensors and determines whether or not it is feasible to economize. If the outdoor air enthalpy is
greater than the return air enthalpy, it is not feasible to economize and the economizer damper will
not open past its minimum position.
Fan Failure Switch
The fan failure switch will disable all unit functions and “flash” the Service LED on the zone sensor.
Emergency Stop Input
A binary input is provided on the RTRM for installation of field provided switch or contacts for
immediate shutdown of all unit functions. The binary input is brought out to Low Voltage Terminal
Board One (LTB1).
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RT-PRC033-EN
Electrical Data
Electrical Service Sizing
To correctly size electrical service wiring for your unit, find the appropriate calculations listed
below. Each type of unit has its own set of calculations for MCA (Minimum Circuit Ampacity), MOP
(Maximum Overcurrent Protection), and RDE (Recommended Dual Element fuse size). Read the
load definitions that follow and then find the appropriate set of calculations based on your unit
type.
Set 1 is for cooling only and cooling with gas heat units, and set 2 is for cooling with electric heat
units.
Load Definitions: (To determine load values, see the Electrical Service Sizing Data Tables.)
LOAD1 = CURRENT OF THE LARGEST MOTOR (COMPRESSOR OR FAN MOTOR)
LOAD2 = SUM OF THE CURRENTS OF ALL REMAINING MOTORS
LOAD3 = CURRENT OF ELECTRIC HEATERS
LOAD4 = ANY OTHER LOAD RATED AT 1 AMP OR MORE
Set 1. Cooling Only Rooftop Units and Cooling with Gas Heat Rooftop Units.
MCA = (1.25 x LOAD1) + LOAD2 + LOAD4
MOP = (2.25 x LOAD1) + LOAD2 + LOAD4
Select a fuse rating equal to the MOP value. If the MOP value does not equal a standard fuse size
as listed in NEC 240-6, select the next lower standard fuse rating. NOTE: If selected MOP is less than
the MCA, then reselect the lowest standard maximum fuse size which is equal to or larger than the
MCA, provided the reselected fuse size does not exceed 800 amps.
RDE = (1.5 x LOAD1) + LOAD2 + LOAD4
Select a fuse rating equal to the RDE value. If the RDE value does not equal a standard fuse size as
listed in NEC 240-6, select the next higher standard fuse rating.
Note: If the selected RDE is greater than the selected MOP value, then reselect the RDE value to
equal the MOP value.
(Keep in mind when determining LOADS that crankcase heaters are disabled in the cooling mode).
DSS = 1.15 x (LOAD1 + LOAD2 + LOAD4)
Select a disconnect switch size equal to or larger than the DSS value calculated.
Set 2. Rooftop Units with Electric Heat.
To arrive at the correct MCA, MOP, and RDE values for these units, you must perform two sets of
calculations. First calculate the MCA, MOP, and RDE values as if the unit was in cooling mode (use
the equations given in Set 1). Then calculate the MCA, MOP, and RDE values as if the unit was in
the heating mode as follows.
(Keep in mind when determining LOADS that the compressors and condenser fans don’t run while
the unit is in the heating mode and crankcase heaters are disabled in the cooling mode.)
For units using heaters less than 50 kw.
MCA = 1.25 x (LOAD1 + LOAD2 + LOAD4) + (1.25 x LOAD3)
For units using heaters equal to or greater than 50 kw.
MCA = 1.25 x (LOAD1 + LOAD2 + LOAD4) + LOAD3
The nameplate MCA value will be the larger of the cooling mode MCA value or the heating mode
MCA value calculated above.
MOP = (2.25 x LOAD1) + LOAD2 + LOAD3 + LOAD4
The selection MOP value will be the larger of the cooling mode MOP value or the heating mode
MOP value calculated above.
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Electrical Data
Select a fuse rating equal to the MOP value. If the MOP value does not equal a standard fuse size
as listed in NEC 240-6, select the next lower standard fuse rating.
Note: If selected MOP is less than the MCA, then reselect the lowest standard maximum fuse size
which is equal to or larger than the MCA, provided the reselected fuse size does not exceed
800 amps.
RDE = (1.5 x LOAD1) + LOAD2 + LOAD3 + LOAD4
The selection RDE value will be the larger of the cooling mode RDE value or the heating mode RDE
value calculated above.
Select a fuse rating equal to the RDE value. If the RDE value does not equal a standard fuse size as
listed in NEC 240-6, select the next higher standard fuse rating.
Note: If the selected RDE is greater than the selected MOP value, then reselect the RDE value to
equal the MOP value.
DSS = 1.15 x (LOAD1 + LOAD2 + LOAD3 + LOAD4)
Note: Keep in mind when determining LOADS that the compressors and condenser fans don’t run
while the unit is in the heating mode.
The selection DSS value will be the larger of the cooling mode DSS or the heating mode DSS
calculated above.
Select a disconnect switch size equal to or larger than the DSS value calculated.
Table 49. 27½-50 ton electrical service sizing data—60Hz1
Fan Motors
Compressor
Supply
Allowable
Electrical
Voltage
Model Characteristics
Range
No/Ton RLA (Ea.) LRA (Ea.) HP
TC/TE/
YC*330
TC/TE/
YC*360
Exhaust
50% 100%
FLA No HP FLA(Ea.)
No.
HP FLA(Ea.)
208/60/3
187-229
1/12,1/
13
44.0/50.5
304/315
7.5 22.2
10.0 29.5
230/60/3
207-253
1/12,1/
13
44.0/50.5
304/315
7.5 18.8
10.0 25.2
3
1.1
7.0
1
2
1.0
4.1
460/60/3
414-506
1/12,1/
13
21.0/23.0
147/158
7.5 9.4
10.0 12.6
3
1.1
3.5
1
2
1.0
1.8
575/60/3
517-633
1/12,1/
13
17.5/19.0
122/136
7.5 7.8
10.0 10.1
3
1.1
2.8
1
2
1.0
1.4
208/60/3
187-229
2/13
50.5
315/315
7.5 22.2
10.0 29.5
3
1.1
7.0
1
2
1.0
4.1
230/60/3
207-253
2/13
50.5
315/315
7.5 18.8
10.0 25.2
3
1.1
7.0
1
2
1.0
4.1
460/60/3
414-506
2/13
23.0
158/158
7.5 9.4
10.0 12.6
3
1.1
3.5
1
2
1.0
1.8
575/60/3
517-633
2/13
19.0
136/136
7.5 7.8
10.0 10.1
3
1.1
2.8
1
2
1.0
1.4
208/60/3
187-229
1/13,1/
15
50.5/56.0
315/351
7.5 22.2
10.0 29.5
15.0 40.7
3
1.1
7.0
1
2
1.0
4.1
230/60/3
207-253
1/13,1/
15
50.5/56.0
315/351
7.5 18.8
10.0 25.2
15.0 35.4
3
1.1
7.0
1
2
1.0
4.1
460/60/3
414-506
1/13,1/
15
23.0/27.5
158/197
7.5 9.4
10.0 12.6
15.0 17.7
3
1.1
3.5
1
2
1.0
1.8
575/60/3
517-633
1/13,1/
15
19.0/23.0
136/146
7.5 7.8
10.0 10.1
15.0 15.1
3
1.1
2.8
1
2
1.0
1.4
TC/TE/
YC*420
82
Condenser
3
1.1
7.0
1
2
1.0
4.1
RT-PRC033-EN
Electrical Data
Table 49. 27½-50 ton electrical service sizing data—60Hz1
Fan Motors
Compressor
Supply
Allowable
Electrical
Voltage
Model Characteristics
Range
No/Ton RLA (Ea.) LRA (Ea.) HP
TC/TE/
YC*480
Condenser
Exhaust
50% 100%
FLA No HP FLA(Ea.)
No.
HP FLA(Ea.)
208/60/3
187-229
1/13,1/
20
50.5/83.9
315/485
10.0 29.5
15.0 40.7
230/60/3
207-253
1/13,1/
20
50.5/83.9
315/485
10.0 25.2
15.0 35.4
4
1.1
7.0
1
2
1.5
5.4
460/60/3
414-506
1/13,1/
20
23.0/34.0
158/215
10.0 12.6
15.0 17.7
4
1.1
3.5
1
2
1.5
2.7
575/60/3
517-633
1/13,1/
20
19.0/27.3
136/175
10.0 10.1
15.0 15.1
4
1.1
2.8
1
2
1.5
2.2
208/60/3
187-229
2/13,1/
15
50.5/56.0
315/351
10.0 29.5
15.0 40.7
20.0 56.1
4
1.1
7.0
1
2
1.5
5.4
230/60/3
207-253
2/13,1/
15
50.5/56.0
315/351
10.0 25.2
15.0 35.4
20.0 49.4
4
1.1
7.0
1
2
1.5
5.4
460/60/3
414-506
2/13,1/
15
23.0/27.5
158/197
10.0 12.6
15.0 17.7
20.0 24.7
4
1.1
3.5
1
2
1.5
2.7
575/60/3
517-633
2/13,1/
15
19.0/23.0
136/146
10.0 10.1
15.0 15.1
20.0 19.6
4
1.1
2.8
1
2
1.5
2.2
TC/TE/
YC*600
4
1.1
7.0
1
2
1.5
5.4
Notes:
1. All customer wiring and devices must be installed in accordance with local and national electrical codes.
2. 100% Power Exhaust is with or without Statitrac™.
Table 50. Electrical service sizing data — electric heat module (electric heat only)—60Hz
Models: TE(D,H,F,R) 330—600 Electric Heat FLA
KW Heater
Nominal
Unit Size
(Tons)
27½-35
40- 50
Nominal
Unit
Voltage
208
230
36
54
72
90
108
FLA
FLA
FLA
FLA
FLA
74.9
112.4
—
—
—
86.6
129.9
—
—
—
460
43.3
65.0
86.6
108.3
—
575
—
52.0
69.3
86.6
—
208
—
112.4
—
—
—
230
—
129.9
—
—
—
460
—
65.0
86.6
108.3
129.9
575
—
52.0
69.3
86.6
103.9
Note: All FLA in this table are based on heater operating at 208, 240, 480, and 600 volts.
Table 51. Electrical service sizing data—crankcase heaters—(heating mode only)—60Hz
Nominal
Unit Size
(Tons)
RT-PRC033-EN
FLA Add
Unit Voltage
200
230
460
575
27½ - 35
1
1
1
1
40, 50
2
2
1
1
83
Electrical Data
Table 52. Electrical service sizing data—50Hz
Fan Motors
Compressor
Model
TC/TE/YC*275
TC/TE/YC*305
TC/TE/YC*350
TC/TE/YC*400
TC/TE/YC*500
Electrical
Characteristics No/Ton
380-415/50/3
380-415/50/3
380-415/50/3
LRA
(Ea.)
HP
(kW)
FLA
No.
7.5
(5.6)
13.6/
14.1
10
(6.8)
16.0/
15.5
7.5
(5.6)
13.6/
14.1
10
(6.8)
16.0/
15.5
7.5
(5.6)
13.6/
14.1
10
(6.8)
16.0/
15.5
15
(10.5)
24.0/
26.0
10
(6.8)
16.0/
15.5
15
(10.5)
24.0/
26.0
10
(6.8)
16.0/
15.5
15
(10.5)
24.0/
26.0
20
(12.8)
29.0/
28.0
1/10, 1/11 21.0/23.0 147/ 158
380-415/50/3
380-415/50/3
RLA
(Ea.)
2/11
Condenser1
Supply
23.0
158
1/11, 1/12 23.0/27.5 158/ 197
1/11, 1/17 23.0/34.0 158/ 215
2/11, 1/12 23.0/27.5 158/ 197
Exhaust
50% 100%
HP
(kW)
FLA
(Ea.)
HP
(kW)
FLA
(Ea.)
3
.75
(.56)
4.4
1
2
.75
(.56)
1.7
3
.75
(.56)
4.4
1
2
.75
(.56)
1.7
3
.75
(.56)
4.4
1
2
.75
(.56)
1.7
4
.75
(.56)
4.4
1
2
1.0
(.75)
2.5
4
.75
(.56)
4.4
1
2
1.0
(.75)
2.5
No.
Notes:
1. All condenser fan motors are single phase.
2. All customer wiring and devices must be installed in accordance with local and national electrical codes.
3. Allowable voltage range for the 380V unit is 342-418V, allowable voltage range for the 415V unit is 373-456.
4. 100% Power Exhaust is with or without Statitrac
Table 53. Electrical service sizing data – electric heat module (electric heat units only)—50Hz
Models: TE(D,H,F,R) 275 thru 500 Electric Heat FLA
Nominal
Unit Size
(Tons)
23-29
33, 42
Nominal
Unit
Voltage
KW Heater (380/415V)
23/27
34/40
45/54
56/67
68/81
380
34.5
51.1
68.9
85.5
–
415
37.6
55.6
–
–
–
380
–
51.1
68.9
85.5
103.4
415
–
55.6
75.1
93.2
112.7
Note: All FLA in this table are based on heater operating at 380 or 415 volts as shown above.
Table 54. Electrical service sizing data — crankcase heaters — (heating mode only)—50Hz
84
FLA Add
Nominal
Unit Size
(Tons)
380
415
23 - 29
1
1
33 - 42
1
1
Unit Voltage
RT-PRC033-EN
Dimensional Data
Fresh Air, Power Exhaust Hoods
Figure 8. Side view showing fresh air and power exhaust hoods for downflow return
2 7/16"
(62)
32 1/8"
(814)
37 3/4"
(959)
Figure 9. Side view showing power exhaust hoods for horizontal return
2 7/16"
(62)
32 1/8"
(814)
Note: The two Horizontal Power Exhaust Hoods and the three Horizontal Fresh Air Hoods are
located side by side. The Fresh Air Hoods (not shown) extend only 23 15/16” from the end
of the unit.
RT-PRC033-EN
85
Dimensional Data
Figure 10. 60 Hz 27½-35, 50 Hz 23-29 Tons (TCD, TED, YCD low heat)
Figure 11. Rear view showing duct openings for horizontal supply and return, 60 Hz 27½-35,
50Hz 23-29 Tons (TCH, TEH, YCH low heat)
3 1/4
(81)
1 1/4
(32)
Notes:
86
•
On horizontal units, the VFD is located between the supply and return ductwork, which makes
access limited.
•
For combination of horizontal and downflow openings (digit 3 = F or R) see Figure 10 for
appropriate downflow dimensions and Figure 11 for appropriate horizontal dimensions.
RT-PRC033-EN
Dimensional Data
Figure 12. 60 Hz 27½-35, 50 Hz 23-29 tons (TC, TE, YC low heat)
NOTES:
1. SEE DETAIL HOOD DRAWING FOR HORIZONTAL /
DOWNFLOW UNITS FOR ADDITIONAL DIMENSION
AND LOCATION.
90 3/8"
2295.5mm
180 5/16"
4579.9mm
SEE NOTE 2
3.25 [82.55mm] TO TOP OF FAN GRILLE
70 7/16"
1789.1mm
42"
1066.8mm
5 3/8"
136.5mm
83 13/16"
2128.8mm
1 1/4" [31.7mm]
FEMALE PVC PIPE
3/4" [19.0mm] NPT
GAS INLET
7 9/16"
192.1mm
179 3/4"
4565.65mm
40 3/16"
1020.7mm
6 7/8"
174.6mm
90 1/16"
2287.5mm
CUSTOMER
CONNECTION POINT
Figure 13. Curb assembly, 60 Hz 27½-35, 50 Hz 23-29 tons (TC, TE, YC low heat)
Note: Dimensions in ( ) are mm, 1”= 25.4 mm.
RT-PRC033-EN
87
Dimensional Data
Figure 14. 60 Hz 27½-35, 50 Hz 23-29 tons (YCD high heat)
191
Figure 15. Rear view showing duct openings for horizontal supply and return, 60 Hz 27½-35,
50Hz 23-29 Tons (YCH high heat)
3 1/4
(81)
1 1/4
(32)
Notes:
88
•
On horizontal units, the VFD is located between the supply and return ductwork, which makes
access limited.
•
For combination of horizontal and downflow openings (digit 3 = F or R) see Figure 14 for
appropriate downflow dimensions and Figure 15 for appropriate horizontal dimensions.
RT-PRC033-EN
Dimensional Data
Figure 16. 60 Hz 27½-35, 50 Hz 23-29 tons (YC high heat)
90 5/8"
2301.8mm
208 1/16"
5284.7mm
NOTES:
1. SEE ROOFCURB DRAWING FOR DETAILS
ON FIELD DUCT FITUP AND CONNECTIONS
2. SEE DETAIL HOOD DRAWING FOR HORIZONTAL /
DOWNFLOW UNITS FOR ADDITIONAL DIMENSION
AND LOCATION.
SEE NOTE 2
3.25 [82.55mm] TO
TOP OF FAN GRILLE
70 7/16"
1789.1mm
42"
1066.8mm
1 1/4" [31.7mm]
PVC PIPE FEMALE
5 3/8"
136.5m
83 13/16"
2128.8mm
7 9/16"
192.1m
1" [25.4MM] NPT
GAS INLET
207 1/2"
5270.5mm
40 3/16"
1020.7mm
CUSTOMER
CONNECTION POINT
6 15/16"
174.6mm
90 1/16"
2287.5mm
Figure 17. Curb assembly, 60 Hz 27½-35, 50 Hz 23-29 tons (YC high heat)
26 5
/16
Note: Dimensions in ( ) are mm, 1”= 25.4 mm.
RT-PRC033-EN
89
Dimensional Data
Figure 18. 60 Hz 40-50, 50 Hz 33-42 tons (TCD, TED, YCD low and high heat)
Figure 19. Rear view showing duct openings for horizontal supply and return, 60 Hz 40-50,
50Hz 33-42 Tons (TCH, TEH, YCH low and high heat)
3 1/4
(81)
1 1/4
(32)
Notes:
90
•
On horizontal units, the VFD is located between the supply and return ductwork, which makes
access limited.
•
For combination of horizontal and downflow openings (digit 3 = F or R) see Figure 18 for
appropriate downflow dimensions and Figure 19 for appropriate horizontal dimensions.
RT-PRC033-EN
Dimensional Data
Figure 20. 60 Hz 40-50, 50 Hz 33-42 tons (TC, TE, YC low and high heat)
NOTES:
1. SEE ROOFCURB DRAWING FOR DETAILS
ON FIELD DUCT FITUP AND CONNECTIONS
2. SEE DETAIL HOOD DRAWING FOR HORIZONTAL /
DOWNFLOW UNITS FOR ADDITIONAL DIMENSION
AND LOCATION.
90 5/8"
2301.8mm
232 3/4"
5911.8mm
SEE NOTE 2
3.25 [82.55mm] TO
TOP OF FAN GRILLE
49 9/16"
1258.8mm
77"
1955.8mm
5 5/16"
136.5m
93 3/8"
2371.7mm
7 9/16"
192.1m
1 1/4" [31.7mm]
PVC PIPE FEMALE
1" [25.4MM] NPT
HIGH HEAT GAS INLET
232 3/8"
5902.3mm
3/4" [19MM] NPT
LOW HEAT GAS INLET
46 15/16"
1192.2mm
CUSTOMER
CONNECTION POINT
4 3/4"
120.6mm
90 1/16"
2287.5mm
Figure 21. Curb assembly, 60 Hz 40-50, 50 Hz 33-42 tons (TC, TE, YC low and high heat)
Note: Dimensions in ( ) are mm, 1”= 25.4 mm.
RT-PRC033-EN
91
Dimensional Data
Field Installed Sensors—Variable Air Volume VAV
Figure 22. Single setpoint sensor with system function lights (BAYSENS021*)
Field Installed Sensors—Constant Volume CV or Single Zone Variable
Air Volume SZ VAV
Figure 23. Dual setpoint, manual/automatic changeover sensor with system function lights
(BAYSENS110*), without LED status indicators (BAYSENS108*), single setpoint
without LED status indicators (BAYSENS106*)
Note: Remote sensors are available for use with all zone sensors to provide remote sensing
capabilities.
92
RT-PRC033-EN
Dimensional Data
Integrated Comfort™ System Sensors—CV, VAV, and SZ VAV
Figure 24. Zone temperature sensor with timed override button and local setpoint adjustment
(BAYSENS074)
2-29/32 [73,55 mm]
1-3/32 [27,43 mm]
4-11/16 [118,75 mm]
FRONT
RIGHT
Note: Remote sensors are available for use with all zone sensors to provide remote sensing
capabilities.
Figure 25. Zone temperature sensor with timed override buttons (BAYSENS073*) also available
sensor only (BAYSENS077*)
1-3/32 [27,43 mm]
2-29/32 [73,55 mm]
4-11/16 [118,75 mm]
FRONT
RT-PRC033-EN
RIGHT
93
Dimensional Data
Figure 26. Zone temperature sensor with timed override button and local setpoint adjustment
(BAYSENS119)
(73.55 [2.90])
(27.52 [1.08])
(120.36 [4.74])
Figure 27. Temperature sensor (BAYSENS016*) (top) and remote minimum position
potentiometer control (BAYSTAT023*) (bottom)
94
RT-PRC033-EN
Dimensional Data
Figure 28. Wall-mounted CO2 sensor (BAYCO2K005*), duct-mounted CO2 sensor (not pictured)
(BAYCO2K006*)
Figure 29. Field installed humidity sensor—wall (BAYSENS036*) or duct mount
(BAYSENS037*)
1 in. (25 mm)
4.5 in.
(114 mm)
2.75 in.
3.375 in.
(86 mm)
0.188 in. (5 mm) x 0.375 (10 mm) in.
(70 mm)
RT-PRC033-EN
95
Weights
Table 55. Approximate units operating weights — lbs./kg1
Basic Unit Weights1
Unit
Model
(60Hz/50Hz)
YC
Low Heat
YC
High Heat
TC
TE
330/275
3720 / 1687
4150 / 1882
3590 / 1628
3610 / 1637.5
360/305
3795 / 1721
4225 / 1916
3665 / 1662
3685 / 1671.5
420/350
3876 / 1758
4306 / 1953
3746 / 1699
3766 / 1708
480/400
4825 / 2189
4950 / 2245
4565 / 2071
4600 / 2086.5
600/500
5077 / 2303
5202 / 2360
4827 / 2189.5
4852 / 2201
1. Basic unit weight includes minimum horsepower supply fan motor.
Table 56. Point loading average weight1,2 — lbs./kg
Unit
Model
(60Hz/50Hz)
A
B
C
D
E
F
330/275
852 / 386
695 / 315
754 / 342
740 / 335
602 / 273
504 / 228
360/305
878 / 398
681 / 309
750 / 340
713 / 323
577 / 262
622 / 282
420/350
841 / 381
842 / 382
669 / 303
735 / 333
582 / 264
634 / 287
480/400
835 / 378
869 / 394
950 / 431
748 / 339
769 / 349
776 / 352
600/500
882 / 400
931 / 422
954 / 433
740 / 336
844 / 382
847 / 384
Notes:
1. Point Loading is identified with corner A being the corner with the compressors. As you move clockwise around
the unit as viewed from the top, mid-point B, corner C, corner D, mid-point E and corner F.
2. Point load calculations provided are based on the unit weight for YC high heat gas models.
D
E
F
TOP VIEW
OF UNIT
C
96
B
COMPRS
A
RT-PRC033-EN
Weights
Table 57. Approximate operating weights— optional components — lbs./kg
Var. Freq.
Drives (VFD’s)
0-25%
Man
Damper Econ.
W/O
With
Factory
Thru- NonGFI
the Fused
with
Serv base Discon. Discon.
Valves Elec. Switch Switch
Roof Curb
Unit Model
(60Hz/50Hz)
Baro.
Relief
Power
Exhaust
**(D,F)330/275
110/50
165/74
50/23
260/117
85/39
115/52
18/8
6/3
30/14
85/38
310/141 330/150
**(H,R)330/300
145/65
200/90
50/23
285/128
85/39
115/52
18/8
6/3
30/14
85/38
310/141 330/150
**(D,F)360/305
110/50
165/74
50/23
260/117
85/39
115/52
18/8
6/3
30/14
85/38
310/141 330/150
**(H,R)330/305
145/65
200/90
50/23
285/128
85/39
115/52
18/8
6/3
30/14
85/38
310/141 330/150
**(D,F)420/350
110/50
165/74
50/23
260/117
85/39
115/52
18/8
6/3
30/14
85/38
310/141 330/150
**(H,R)420/350
145/65
200/90
50/23
285/128
85/39
115/52
18/8
6/3
30/14
85/38
310/141 330/150
**(D,F)480/400
110/50
165/74
50/23
290/131 115/52
150/68
18/8
6/3
30/14
85/38
365/169 365/169
**(H,R)480/400
145/65
200/90
50/23
300/135 115/52
150/68
18/8
6/3
30/14
85/38
365/169 365/169
**(D,F)600/500
110/50
165/74
50/23
290/131 115/52
150/68
18/8
6/3
30/14
85/38
365/169 365/169
**(H,R)600/500
145/65
200/90
50/23
300/135 115/52
150/68
18/8
6/3
30/14
85/38
365/169 365/169
Unit Model
(60Hz/50Hz)
Tool-Less
Condenser
HGRH
Hail
Coil
Guards
**(D,F)330/275
107/49
105/48
**(H,R)330/300
107/49
105/48
**(D,F)360/305
107/49
105/48
**(H,R)330/305
107/49
105/48
**(D,F)420/350
107/49
105/48
**(H,R)420/350
107/49
105/48
**(D,F)480/400
112/51
130/59
**(H,R)480/400
112/51
130/59
**(D,F)600/500
112/51
130/59
**(H,R)600/500
112/51
130/59
Bypass
Lo
Hi
Note: Basic unit weight includes minimum horsepower supply fan motor.
Table 58. Minimum operating clearances for unit installation
Econo/Exhaust End
Condenser Coil2
End/Side
Service Side
Access
Single Unit1
6 Feet (1.82 m)
8 Feet/8 Feet
(2.43/2.43 m)
4 Feet (1.21 m)
Multiple Unit1,3
12 Feet (3.65 m)
16 Feet/16 Feet
(4.87/4.87 m)
8 Feet (2.43 m)
Notes:
1. Horizontal, downflow, and mixed airflow configuration units, all sizes.
2. Condenser coil is located at the end and side of the unit.
3. Clearances on multiple unit installations are distances between units.
RT-PRC033-EN
97
Mechanical Specifications
General
The units shall be dedicated downflow, horizontal, or mixed airflow configuration. The operating
range shall be between 115°F and 0°F in cooling as standard from the factory for all units. Cooling
performance shall be rated in accordance with ARI testing procedures. All units shall be factory
assembled, internally wired, fully charged with R-410A refrigerant and 100% run tested to check
cooling operation, fan and blower rotation and control sequence before leaving the factory. Wiring
internal to the unit shall be numbered for simplified identification. Units shall be UL listed to U.S.
and Canadian safety standards.
Casing
Unit casing shall be constructed of zinc coated, heavy gauge, galvanized steel. All components shall
be mounted in a weather resistant steel cabinet with a painted exterior. Where top cover seams
exist, they shall be double hemmed and gasket sealed to prevent water leakage. Cabinet
construction shall allow for all maintenance on one side of the unit. Service panels shall have
handles and shall be removable while providing a water and air tight seal. Control box access shall
be hinged. The indoor air section shall be completely insulated with fire resistant, permanent,
odorless, foil faced glass fiber material. The base of the unit shall have provisions for crane lifting.
Filters
Two inch, MERV 4, throwaway filters shall be standard on all size units. MERV 8 two inch “high
efficiency”, MERV 8 four inch “high efficiency” and MERV 14 four inch “high efficiency” filters shall
be optional.
Compressors
The Trane 3-D™ Scroll compressors have a simple mechanical design with only three major moving
parts. Scroll type compression provides inherently low vibration. The 3-D Scroll provides a
completely enclosed compressor chamber with optimized scroll profiles which leads to increased
efficiency. The 3-D Scroll includes a direct-drive, 3600 rpm, suction gas cooled hermetic motor.
Dependent on the compressor model, motor protection is provided by either a patented motor cap
and integral line break motor protector or an external 24 Vac module which provides protection
against incorrect phase sequence, excess motor temperatures, over current protection, and phase
loss. Trane 3-D compressor includes centrifugal oil pump, scroll tips seals, internal heat shield that
lowers the heat transfer from discharge and suction gas, oil level sight glass and oil charge valve.
Some compressor models also provide a dip tube that allows for oil draining, in addition to a low
leakage internal discharge check valve to help prevent refrigerant migration. Each compressor shall
have a crankcase heater installed, properly sized to minimize the amount of liquid refrigerant
present in the oil sump during off cycles.
Refrigerant Circuits
Each refrigerant circuit shall have independent thermostatic expansion devices, service pressure
ports and refrigerant line filter driers factory-installed as standard. An area shall be provided for
replacement suction line driers.
Evaporator and Condenser Coils
Condenser coils shall have all Aluminum Microchannel coils. Evaporator coils shall be internally
finned Copper tubes mechanically bonded to high performance Aluminum plate fins. All coils shall
be leak tested at the factory to ensure pressure integrity.The evaporator coil is pressure tested to
450 psig and the condenser coil at 650 psig. All dual circuit evaporator coils shall be of intermingled
configuration. Sloped condensate drain pans are standard.
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Outdoor Fans
The outdoor fan shall be direct-drive, statically and dynamically balanced, draw through in the
vertical discharge position. The fan motor(s) shall be permanently lubricated and have built-in
thermal overload protection.
Indoor Fan
Units shall have belt driven, FC, centrifugal fans with fixed motor sheaves. All motors shall be
circuit breaker protected. All 50 Hz indoor fan motors meet the U.S. Energy Policy Act of 1992
(EPACT). All 60 Hz indoor fan motors meet the Energy Independence & Security Act of 2007 (EISA).
Electric Heaters
Electric heat shall be available for factory installation within basic unit. Electric heater elements
shall be constructed of heavy-duty nickel chromium elements internally delta connected for 240
volt and wye connected for 480 and 600 volt. Staging shall be achieved through the rooftop
refrigeration module (RTRM). Each heater package shall have automatically reset high limit control
operating through heating element contactors. All heaters shall be individually fused from factory,
where required, and meet all NEC and CEC requirements. Power assemblies shall provide singlepoint connection. Electric heat shall be cULus listed.
Gas Heating Section
The heating section shall have a drum and tube heat exchanger(s) design with primary and
secondary surfaces of corrosion resistant aluminized steel or optional stainless steel (all
modulating gas heat units shall have stainless steel).
A forced combustion blower shall supply premixed fuel to a single burner ignited by a pilotless
hot surface ignition system. In order to provide reliable operation, a regulated gas valve shall be
used that requires blower operation to initiate gas flow. On an initial call for heat, the combustion
blower shall purge the heat exchanger(s) 45 seconds before ignition. After three unsuccessful
ignition attempts, the entire heating system shall be locked out until manually reset at the
thermostat.
Two stage gas heat units shall be suitable for use with natural gas or propane (field installed kit).
Modulating gas heat units shall be suitable for use with natural gas only. Both two stage and
modulating gas heat units comply with California requirements for low NOx emissions.
Modulating gas turn down ratio on high fire units is accomplished by allowing the furnaces to act
independently of one another. The modulating bank is activated first and is allowed to modulate
itself to meet the heating needs. If the modulating bank is unable to meet the need at high fire, the
second bank is turned on and then the first bank again modulates to the appropriate level. This
system creates a nearly seamless range of capacity from low fire on the modulating bank to high
fire of both furnaces together.
Controls
Unit shall be completely factory wired with necessary controls and terminal block for power wiring.
Units shall provide an external location for mounting fused disconnect device. ReliaTel controls
shall be provided for all 24 volt control functions. The resident control algorithms shall make all
heating, cooling and/or ventilating decisions in response to electronic signals from sensors
measuring indoor and outdoor temperatures. The control algorithm maintains accurate
temperature control, minimizes drift from set point and provides better building comfort. ReliaTel
controls shall provide anti-short cycle timing and time delay between compressors to provide a
higher level of machine protection.
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Control Options
Variable Frequency Drives (VFDs)
VFDs shall be factory installed and tested to provide supply fan motor speed modulation. If the unit
is configured for traditional VAV control, the VFD shall receive a 0-10 Vdc signal from the unit
controls based upon supply static pressure and shall cause the drive to accelerate or decelerate as
required to maintain the supply static pressure setpoint. The VFD shall receive a 0-10 Vdc signal
from the unit controls based on zone demand if configured for Single Zone VAV control and shall
cause the drive to accelerate or decelerate as required to maintain the load of the zone. When
subjected to high ambient return conditions the VFD shall reduce its output frequency to maintain
operation. Bypass control to provide full nominal air flow in the event of drive failure shall be
optional.
Ventilation Override
Ventilation Override shall allow a binary input from the fire/life safety panel to cause the unit to
override standard operation and assume one of three factory preset ventilation sequences,
exhaust, pressurization or purge. The three sequences shall be selectable based upon a binary
select input.
Trane Communication Interface (TCI)
Shall be provided to interface with the Trane Integrated Comfort™ System and shall be available
field or factory-installed. The TCI shall allow control and monitoring of the rooftop unit via a twowire communication link.
LonTalk Communication Interface (LCI-R)
The field or factory-installed ReliaTel® LonTalk Communication Interface (LCI-R) will be provided
to interface with the Trane Integrated Comfort System or LonTalk capable third party building
management networks. The LCI-R will allow control and monitoring of the rooftop unit via a twowire communication link.
BACnet Communication Interface (BCI-R)
The BACnet Communication Interface for ReliaTel (BCI-R) supports Trane™ ReliaTel rooftop units
that function as part of a Trane SC system controller network. It allows ReliaTel equipment to
communicate with a building automation system (BAS) by using the BACnet protocol over an RS485 MS/TP communications link.
Outside Air
Manual Outside Air
A manually controllable outside air damper shall be adjustable for up to 25 percent outside air.
Manual damper is set at desired position at unit start up.
Economizer
Economizer shall be factory installed. The assembly includes: fully modulating 0-100 percent motor
and dampers, minimum position setting(s), preset linkage, wiring harness, and fixed dry bulb
control. Solid state enthalpy and differential enthalpy control shall be a factory or field installed
option.
Exhaust Air
100% Power Exhaust Fan
Power exhaust shall be available on all units and shall be factory installed. It shall assist the
barometric relief damper in maintaining building pressurization.
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Mechanical Specifications
50% Power Exhaust Fan
Power exhaust shall be available on all units and shall be factory installed. It shall assist the
barometric relief damper in maintaining building pressurization.
100% Modulating Exhaust Fan with Statitrac™ Control Option
A differential pressure control system, (Statitrac™), shall use a differential pressure transducer to
compare indoor building pressure to outdoor ambient atmospheric pressure and shall turn the
exhaust fans on and off and modulate the barometric exhaust dampers to control the building
pressure to within the adjustable, specified dead band that shall be adjustable at the RTVM board.
100% Fresh Air Tracking Power Exhaust
Modulating power exhaust shall be available on all units and shall be factory installed. It shall assist
with maintaining building pressurization by exhausting a proportional amount of the entering
fresh air.
50% Fresh Air Tracking Power Exhaust
Modulating power exhaust shall be available on the on all units and shall be factory installed. It
shall assist with maintaining building pressurization by exhausting a proportional amount of the
entering fresh air.
Barometric Relief
The barometric relief damper shall be optional with the economizer. Option shall provide a
pressure operated damper for the purpose of space pressure equalization and be gravity closing
to prohibit entrance of outside air during the equipment “off” cycle.
Unit Options
Clogged Filter Indication
This optional factory installed differential pressure switch allows dirty filter indication at the zone
sensor with service LED. When closed, the dirty filter switch will light the service LED on the zone
sensor and allow the unit to continue normal operation.
Comparative Enthalpy Kit
Field installed enthalpy kit shall provide inputs for economizer control based upon comparison of
the enthalpies of the return and outdoor air streams. Also available factory installed.
Condenser Coil Guards
Factory installed condenser vinyl coated wire mesh coil guards shall be available to provide full
area protection against debris and vandalism.
Corrosion Protected Condenser Coil
All Aluminum Microchannel condenser coil protection shall consist of a corrosion resistant coating
that shall withstand ASTM B117 Salt Spray test for 6000 hours and ASTM G85 A2 Cyclic Acidified
Salt Fog test for 2400 hours. This coating shall be added after coil construction covering all tubes,
headers and fin edges, therefore providing optimal protection in more corrosive environments.
Discharge Air Sensing
Provides true discharge air sensing in heating and cooling models. This sensor is a status indicator
readable through Tracer, Tracker, or LCI-R. Discharge air sensing is standard with Variable Air
Volume (VAV) units, Single Zone Variable Air Volume units, and is optional with Constant Volume
(CV) units.
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Mechanical Specifications
GFI Convenience Outlet (Factory Powered)
A 15A, 115V Ground Fault Interrupter convenience outlet shall be factory installed. It shall be wired
and powered from a factory mounted transformer. Unit mounted non-fused disconnect with
external handle shall be furnished with factory powered outlet.
GFI Convenience Outlet (Field Powered)
A 15A, 115V Ground Fault Interrupter convenience outlet shall be factory installed and shall be
powered by customer provided 115V circuit.
High Temperature Thermostats
Field installed, manually resettable high temperature thermostats shall provide input to the unit
controls to shut down the system if the temperature sensed at the return is 135ºF or if the discharge
temperature is 240ºF.
Hinged Service Access
Filter access panel and supply fan access panel shall be hinged for ease of unit service.
Hot Gas Reheat
A unit with the hot gas reheat option shall consist of the following refrigeration components: a hot
gas reheat coil, a cooling modulating valve, a reheat modulating valve, a reheat check valve, a
reheat pump out solenoid, and additional interconnecting tubing.
In cooling mode, the cooling modulating valve is fully opened and a reheat modulating valve is
fully closed. All refrigerant is directed into the outdoor condenser coil. A reheat pump out solenoid
is energized allowing trapped refrigerant in the inactive hot gas reheat coil to be directed into the
active cooling portion of the circuit. A reheat check valve prevents refrigerant from flowing into the
reheat coil.
In reheat mode the cooling and reheat modulating valves direct refrigerant into the hot gas reheat
coil and outdoor condenser coil. The cooling modulating valve mirrors the reheat modulating valve
position. As the reheat modulating valve opens more refrigerant is directed into the hot gas reheat
coil and less is directed into the outdoor condenser coil. The two valves are controlled to a customer
selectable discharge air temperature. The reheat coil is located downstream of the evaporator coil
and upstream of the supply fan. As more refrigerant is directed into the hot gas reheat coil, the
discharge air temperature increases. When in reheat, mode the reheat pump out solenoid is deenergized.
LP Conversion Kit
Field installed conversion kit shall provide orifice(s) for simplified conversion to liquefied propane
gas. No change of gas valve shall be required.
Modulating Gas
Modulating Gas Heaters shall be made from grades of stainless steel suitable for condensing
situations. The heater shall have a turn down ratio of 2.5 to 1 for low heat and 5 to 1 for high heat.
Motor Shaft Grounding Ring
Motors with internal Shaft grounding rings can be used with VFDs to provide a conductive
discharge path away from the motor bearings to ground.
Non-Fused Disconnect Switch
A factory installed non-fused disconnect switch with external handle shall be provided and shall
satisfy NEC requirements for a service disconnect. The non-fused disconnect shall be mounted
inside the unit control box.
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Mechanical Specifications
Phase and Voltage Monitor
Standard on all Voyager Commercial units. Protects 3-phase equipment from phase loss, phase
reversal, and low voltage. Any fault condition will send the unit into an emergency stop condition.
cULus approved.
Reference Enthalpy Kit
Field installed enthalpy kit shall provide inputs for economizer control based upon comparison of
the outside air stream to a definable enthalpy reference point. May also be factory installed.
Remote Potentiometer
A remote potentiometer shall be available to remotely adjust the unit economizer minimum
position.
Roof Curb
The roof curb shall be designed to mate with the unit and provide support and a water tight
installation when installed properly. The roof curb design shall allow field-fabricated rectangular
supply/return ductwork to be connected directly to the curb when used with downflow units. Curb
design shall comply with NRCA requirements. Curb shall ship knocked down for field assembly and
include wood nailer strips.
Service Valves
Service valves shall be provided factory installed and include suction, liquid, and discharge 3-way
shutoff valves.
Single Zone VAV
SZVAV systems combine Trane application, control and system integration knowledge to exactly
match fan speed with cooling and heating loads, regardless of the operating condition.
Stainless Steel Drain Pans
Sloped stainless steel evaporator coil drain pans are durable, long-lasting and highly corrosion
resistant.
Stainless Steel Heat Exchanger
Stainless steel heat exchangers are durable, long-lasting and highly corrosion resistant.
Through-The-Base Electrical Provision
An electrical service entrance shall be provided which allows access to route all high and low
voltage electrical wiring inside the curb, through the bottom of the outdoor section of the unit and
into the control box area.
Tool-Less Condenser Hail Guards
Tool-less, hail-protection-quality coil guards are available for condenser coil protection.
Zone Sensors
Shall be provided to interface with the ReliaTel unit controls and shall be available in either manual,
automatic programmable with night setback, with system malfunction lights or remote sensor
options.
BAYCO2K005. Wall-mounted CO2 sensor has the ability to monitor space occupancy levels
within the building by measuring the parts per million of CO2 (Carbon Dioxide) in the air. As the
CO2 levels increase, the outside air damper modulates to meet the CO2 space ventilation
requirements.
BAYCO2K006* . Duct-mounted CO2 sensor has the ability to monitor space occupancy levels
within the building by measuring the parts per million of CO2 (Carbon Dioxide) in the air. As the
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Mechanical Specifications
CO2 levels increase, the outside air damper modulates to meet the CO2 space ventilation
requirements.
BAYICSI004*. Field-installed Trane Communication Interface (TCI).
BAYLTCI003*. Field-installed LonTalk Communication Interface (LCI-R) for Constant Volume (CV)
and Single Zone VAV (SZ VAV) units.
BAYLTCI004*. Field-installed LonTalk Communication Interface (LCI-R) for Variable Air Volume
(VAV) units.
BAYBCIR001*. Field-installed BACnet Communication Interface (BCI-R).
BAYSENS016*. Temperature Sensor is a bullet or pencil type sensor that could be used for
temperature input such as return air duct temperature.
BAYSENS021*. Zone Sensor with supply air single temperature setpoint and AUTO/OFF system
switch. Status indication LED lights, System ON, Heat, Cool, and Service are provided. Sensors are
available to be used with VAV units.
BAYSENS036/37*. This wall or duct-mounted humidity sensor shall be used to control
activation of the hot gas reheat dehumidification option. The humidity sensor can be set for
humidity levels between 40% and 60% relative humidity.
BAYSENS073*. Zone temperature sensor with timed override buttons used with Tracer™
Integrated Comfort system.
BAYSENS074*. Zone temperature sensor with local temperature adjustment control and timed
override buttons used with Tracer Integrated Comfort system. May also be used for Morning Warmup setpoint and sensor.
BAYSENS077*. Remote Sensor can be used for remote zone temperature sensing capabilities
when zone sensors are used as remote panels or as a morning warm-up sensor for use with VAV
units or as a zone sensor with Tracer Integrated Comfort system.
BAYSENS106*. Zone Sensor has one temperature setpoint lever, heat, off or cool system switch,
fan auto or fan on switch. Manual changeover. These sensors are for CV or SZ VAV units only.
BAYSENS108*. Zone Sensor has two temperature setpoint levers, heat, auto, off, or cool system
switch, fan auto or fan on switch. Auto changeover. These sensors are used with CV or SZ VAV units.
BAYSENS110*. Zone Sensor has two temperature set point levers, heat, auto, off, or cool system
switch, fan auto or fan on switch. Status indication LED lights, System on, Heat, Cool, and Service
are provided. These sensors are used with CV and SZ VAV units.
BAYSENS119*. Electronic programmable sensors with auto or manual changeover with seven
day programming. Keyboard selection of heat, cool, auto fan or on. All programmable sensors
have System on, Heat, Cool, Service LED/LCD indicators as standard. Night setback sensors have
one occupied, one unoccupied, and one override programs per day. Sensors are available for CV,
VAV and SZ VAV temperature control.
BAYSTAT023*. Remote Minimum Position Potentiometer is used to remotely specify the
minimum economizer position.
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Trane optimizes the performance of homes and buildings around the world. A business of Ingersoll Rand, the
leader in creating and sustaining safe, comfortable and energy efficient environments, Trane offers a broad
portfolio of advanced controls and HVAC systems, comprehensive building services, and parts. For more
information, visit www.Trane.com.
Trane has a policy of continuous product and product data improvement and reserves the right to change design and specifications without notice.
© 2012 Trane All rights reserved
RT-PRC033-EN 28 Sep 2012
Supersedes RT-PRC033-EN (20 Jul 2012)
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conscious print practices that reduce waste.
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