York Sunline Magnadry Wr240 User Manual
262292-YTG-B-0107  
®
DESCRIPTION  
TECHNICAL GUIDE  
YORK Sunline MagnaDRY™ units are convertible single  
package high efficiency rooftops. All models have independent  
dual refrigerant circuits for efficient part load operation.  
Although the units are primarily designed for curb mounting on  
a roof, they can also be slab-mounted at ground level or set on  
steel beams above a finished roof.  
SUNLINE MagnaDRY™  
GAS/ELECTRIC SINGLE  
All units include:  
• Powder Paint finish that meets ASTM-B-117 1000 hour  
salt spray standards  
• Two-stage cooling provided by dual independent  
refrigeration circuits with expansion valves, filter-driers,  
high and low pressure/loss of charge switches and  
freezestats  
PACKAGE AIR CONDITIONERS  
WR 180, 240 & 300  
• Scroll compressors  
15 thru 25 NOMINAL TONS  
• Two-stage heating provided by dual independent heat  
exchangers with aluminized steel tubes, redundant gas  
valves, spark ignition with induced draft logic  
• Permanently lubricated motors  
11.9 EER (15 TONS), 11.0 EER (20 TONS),  
10.0 EER (25 TONS)  
• Bottom or side air discharge configuration capability (field  
convertible)  
• Belt Drive Blower Motor with high static drive option  
• Constant supply air volume (CV) with optional variable air  
volume (VAV)  
• Manufactured under the quality standards of ISO9001  
• S implicity® Control Board  
• Zero-25% fixed air damper with hood  
• Copper tube/aluminum fin coils  
• Hinged filter access and toolless latched doors  
• Rigging holes in base rails for lifting  
• Single point power connection  
• Complete factory package - tested, charged and wired  
• CSA agency approvals on all units  
WARRANTY  
• One-year parts warranty  
• A Five-year parts warranty on the compressors and  
electric heat elements  
• Ten-year parts warranty on the gas-fired heat exchangers  
FOR DISTRIBUTION USE ONLY - NOT TO BE USED AT POINT OF RETAIL SALE  
 
262292-YTG-B-0107  
PRODUCT NOMENCLATURE  
15-25 Ton Sunline MagnaDRY™ Model Number Nomenclature  
W R 180 N24 A 2 A AA 1 0 1 2 4 A  
Product Category  
Product Style  
W = A/C, Single Pkg.,  
R-22 w/6-Row Evap.  
A = Style A  
Configuration Options (not required for all units)  
These four digits will not be assigned until a quote is requested, or an order placed.  
Product Identifier  
R = 90.1 w/Reheat  
SS Drain Pan  
CPC Controller, DFS, APS  
Johnson Controller, DFS, APS  
Nominal Cooling Capacity  
Honeywell Controller, DFS, APS  
180 = 15 Ton  
240 = 20 Ton  
300 = 25 Ton  
Novar Controller, DFS, APS  
Simplicity IntelliComfort Controller  
Simplicity IntelliComfort Controller w/ModLinc  
Hot Gas Bypass (Standard on VAV, Optional on CV)  
Variable Air Volume (VFD) - Not Available with Factory Installed BAS Options  
Variable Air Volume (VFD With Manual Bypass) - Not Available with Factory Installed BAS Options  
Variable Air Volume (VFD-Ready for Customer Installed Drive)  
2" Pleated filters  
Heat Type and Nominal Heat Capacity  
C00 = Cooling Only. No field installed  
electric heat  
Gas Heat Options  
4" Pleated filters  
N24 = 240 MBH Output Aluminized Steel  
N32 = 320 MBH Output Aluminized Steel  
S24 = 240 MBH Output Stainless Steel  
S32 = 320 MBH Output Stainless Steel  
BAS Ready Unit with Belimo Economizer  
Double Wall Construction  
Heat Reclaim Coil Options (2 or 3 Row, 1-5/8" or 2-1/8" Stub Out) (WJ and WR models only)  
Any Combination of Additional Options that Don’t Have an Option Code Pre-assigned  
Electric Heat Options  
Product Generation  
E18 = 18 KW  
E36 = 36 KW  
E54 = 54 KW  
E72 = 72 KW  
1 = First Generation  
2 = Second Generation  
Additional Options  
Hinged Filter Door & Toolless Access Cabinet  
Airflow  
Standard Cabinet  
A = Std. Drive  
B = Std. Drive/Single Input Econo.  
C = Std. Drive/Single Input Econo./Power Exhaust  
(Downflow Only)  
D = Std. Drive/Motorized Damper  
N = Hi Static Drive  
AA = None  
AB = Phase Monitor  
BA = Hinged Filter Door & Toolless Access Panels  
BB = Phase Monitor, Hinged Filter Door & Toolless  
Access Panels  
AC = Coil Guard  
AD = Dirty Filter Switch  
BC = Coil Guard, Hinged Filter Door & Toolless  
Access Panels  
AE = Phase Monitor & Coil Guard  
AF = Phase Monitor & Dirty Filter Switch  
AG = Coil Guard & Dirty Filter Switch  
AH = Phase Monitor, Coil Guard & Dirty Filter Switch  
RC = Coil Guard & American Flag  
TA = Technicoat Condenser Coil  
TJ = Technicoat Evaporator Coil  
TS = Technicoat Evaporator & Condenser Coils  
P = Hi Static Drive/Single Input Econo.  
Q = Hi Static Drive/Single Input Econo./Power Exhaust  
(Downflow Only)  
BD = Dirty Filter Switch, Hinged Filter Door &  
Toolless Access Panels  
BE = Phase Monitor & Coil Guard, Hinged Filter  
Door & Toolless Access Panels  
R = Hi Static Drive/Motorized Damper  
2 = Low Static Drive  
BF = Phase Monitor & Dirty Filter Switch, Hinged  
Filter Door & Toolless Access Panels  
BG = Coil Guard & Dirty Filter Switch, Hinged Filter  
Door & Toolless Access Panels  
3 = Low Static Drive/Single Input Econo.  
4 = Low Static Drive/Single Input Econo./Power Exhaust  
(Downflow Only)  
5 = Low Static Drive/Motorized Damper  
BH = Phase Monitor, Coil Guard & Dirty Filter Switch,  
Hinged Filter Door & Toolless Access Panels  
Voltage  
ZZ = If desired option combination is not listed above, ZZ will be assigned and configuration options will be  
located in digits 15-18.  
2 = 208/230-3-60  
4 = 460-3-60  
5 = 575-3-60  
Installation Options  
A = No Options Installed  
B = Option 1  
C = Option 2  
D = Options 1 & 2  
E = Option 3  
F = Option 4  
G = Options 1 & 3  
H = Options 1 & 4  
J = Options 1, 2 & 3  
K = Options 1, 2, & 4  
L = Options 1,3 & 4  
M = Options 1, 2, 3, & 4  
N = Options 2 & 3  
P = Options 2 & 4  
Q = Options 2, 3, & 4  
R = Options 3 & 4  
S = Option 5  
T = Options 1 & 5  
U = Options 1, 3, & 5  
V = Options 1, 4, & 5  
W = Options 1, 3, 4, & 5  
X = Options 3 & 5  
Y = Options 4 & 5  
Z = Options 3, 4 & 5  
Options  
1 = Disconnect  
2 = Non-Pwr'd Conv. Outlet  
3 = Smoke Detector S.A.  
4 = Smoke Detector R.A.  
5 = Pwr'd Conv. Outlet  
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outdoor ambient without additional assistance. Optionally,  
the control board can be programmed to lockout the  
compressors when the outdoor air temperature is low or  
when free cooling is available.  
FEATURES  
All models are available with a wide variety of factory-mounted  
options such as stainless steel heat exchangers, phase  
monitor, dirty filter switch, and coil guard to make them suitable  
for almost every application.  
• Anti-Short Cycle Protection - To aid compressor life, an  
anti-short cycle delay is incorporated into the standard  
controls. Compressor reliability is further ensured by  
programmable minimum run times. For testing, the anti  
short cycle delay can be temporarily overridden with the  
push of a button.  
All units are self-contained and assembled on full perimeter  
base rails with holes in the four corners for overhead rigging.  
Every unit is completely piped, wired, charged and tested at the  
factory to simplify the field installation and to provide years of  
dependable operation.  
• Lead-Lag - An integrated Lead-Lag option allows equal  
run time hours on all compressors, thereby extending the  
life of all compressors. This option is selectable on the unit  
control board.  
All models (including those with an economizer) are suitable for  
either bottom or horizontal duct connections. Models with  
factory installed power exhaust are suitable for bottom  
duct connections only. For bottom duct, you remove the  
sheet metal panels from the supply and return air openings  
through the base of the unit. For horizontal duct, you replace  
the supply and return air panels on the rear of the unit with a  
side duct flange accessory.  
• Fan Delays - Fan on and fan off delays are fully  
programmable. Furthermore, the heating and cooling fan  
delay times are independent of one another. All units are  
programmed with default values based upon their  
configuration of cooling and heat.  
• Safety Monitoring - The control board monitors the high  
and low-pressure switches, the freezestats, the gas valve,  
if applicable, and the temperature limit switch on gas and  
electric heat units. The unit control board will alarm on  
ignition failures, compressor lockouts and repeated limit  
switch trips.  
All models are available with these “factory mounted” outdoor  
air damper options:  
• Single enthalpy economizer  
• Single enthalpy economizer with power exhaust  
• Motorized outdoor air damper  
• Nuisance Trip Protection and Strikes - To prevent  
nuisance trouble calls, the control board uses a “three  
times, you’re out” philosophy. The high and low-pressure  
switches and the freezestats must trip three times within  
two hours before the unit control board will lock out the  
associated compressor.  
A fixed outdoor air intake assembly will be shipped in the return  
air compartment of all units ordered without an economizer or  
motorized outdoor air damper option. The assembly includes a  
rain hood with a damper that can be set for 10, 15 or 25%  
outdoor air. With bottom duct connections, the intake damper  
assembly should be mounted over the opening in the return air  
panel. With horizontal ductwork, it should be mounted on the  
return air duct.  
• On Board Diagnostics - Each alarm will energize a  
trouble light on the thermostat, if so equipped, and flash  
an alarm code on the control board LED. Each high and  
low-pressure switch alarm as well as each freezestat  
alarm has its own flash code. The control board saves the  
five most recent alarms in memory, and these alarms can  
be reviewed at any time. Alarms and programmed values  
are retained through the loss of power.  
All supply air blowers are equipped with a belt drive that can be  
adjusted to meet the exact requirements of the job. A high static  
drive option is available for applications with a higher CFM and/  
or static pressure requirement. A variable air volume (VAV)  
option using a variable frequency drive is available for  
applications requiring a constant supply duct pressure. A  
differential pressure transducer is used to monitor supply duct  
static pressure and return a speed reference signal to the VFD  
to control the output of the indoor blower motor.  
All units have long lasting powder paint cabinets with 1000 hour  
salt spray test approval under ASTM-B117 procedures.  
All models are CSA approved.  
• Warranty - All models include a one-year limited parts  
warranty on the complete unit. Compressors and electric  
heater elements carry a five-year warranty. Gas heat  
exchangers carry a 10-year parts warranty.  
All compressors include scroll compressors and internal  
pressure relief. Every refrigerant circuit includes an expansion  
valve, a liquid line filter-drier, a discharge line high pressure  
switch and a suction line with a freezestat and low pressure/  
loss of charge switch to protect all system components. A hot  
gas bypass option, consisting of an adjustable compressor  
discharge bypass valve, is available for low cooling load  
applications.  
• Gas Heat Operation - All gas heat units are built with two  
heating sections for two equal stages of capacity control.  
Each section includes a durable heat exchanger with  
aluminized steel or optional stainless steel tubes, a  
redundant gas valve, spark ignition, power venting, an  
ignition module for 100% shut-off and all of the safety  
controls required to meet the latest ANSI standards.  
• S implicity® Controls - S implicity® control boards have  
standardized a number of features previously available  
only as options or by utilizing additional controls.  
The gas supply piping can be routed into the heating  
compartment through a hole in the base pan of the unit or  
through a knockout in the piping panel on the front of the  
unit.  
• Low Ambient - An integrated low-ambient control allows  
all units to operate in the cooling mode down to 0°F  
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LOCATION OF VFD (Optional)  
LOCATION OF VFD BYPASS (Optional)  
FIGURE 1: UNIT CUTAWAY  
• Electric Heat Operation - All electric heat models  
(factory installed only) are wired for a single power source  
and include a bank of nickel chromium elements mounted  
at the discharge of the supply air blower to provide a high  
velocity and uniform distribution of air across the heating  
elements. Every element is fully protected against  
excessive current and temperature by fuses and two  
thermal limit switches.  
“NORMAL” MODE  
When the reheat control board (RCB) detects a need for  
dehumidification (24VAC) at "HUM" via the field supplied  
dehumidistat connected to RHTB-1 and RHTB-2 and there is  
not a call for cooling, it energizes the hot gas relay (HGR),  
which energizes the 3-way valve (SOL 3), the condenser coil  
valve (SOL 2), and de-energizes the reheat coil bleed valve  
(SOL 1). The Y1 signal is passed to the unit control board  
(UCB), which engages circuit # 1, resulting in circuit #1 reheat  
mode operation.  
• The power supply wiring can be routed into the control  
box through a threaded pipe connection in the base pan of  
the unit or through a knockout in the wiring panel on the  
front of the unit.  
When the room thermostat calls for first stage cooling, with or  
without a call for dehumidification, the RCB senses a signal  
through "Y1", de-energizing the HGR, which de-energizes SOL  
3 and SOL 2, and energizes SOL 1, engaging circuit # 1,  
resulting in circuit #1 cooling mode operation.  
• BAS Controls - York’s Magnum series units offer factory  
mounted BAS controls such as Novar, Honeywell,  
Johnson, and CPC.  
REHEAT MODE SEQUENCE OF OPERATION  
When the room thermostat calls for second stage cooling, the  
RCB senses a signal through "Y1" & "Y2" and engages circuit  
#1 and circuit #2 in the cooling mode.  
The reheat control board allows the user to select two different  
modes of operation via a jumper connection on the board. (See  
Figure 2.) Each mode is described below. Refer to Figures 2 - 4  
when reading this section.  
Indoor blower operation is initiated upon a call for first stage  
cooling, second stage cooling or dehumidification.  
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262292-YTG-B-0107  
Anytime there is a call for 2 stages of cooling, the unit will not  
operate in the reheat mode, even if there is a call for  
dehumidification at "HUM".  
When the room thermostat calls for first stage cooling while  
there is still a call for dehumidification, no operational change is  
made. The call for cooling is ignored and the unit continues to  
operate with circuit #1 in reheat mode and circuit #2 in cooling  
mode.  
The unit will not operate in the reheat mode if there is any call  
for heating.  
When the room thermostat calls for second stage cooling, the  
RCB senses a signal through "Y1" & "Y2" and de-energizes the  
HGR, which de-energizes SOL 3 and SOL 2, and energizes  
SOL 1. Both circuits operate in the cooling mode.  
On units with economizers, the unit will not operate in the  
reheat mode if there is a call for cooling and the economizer is  
operating as first stage of cooling.  
All safety devices function as previously described.  
Indoor blower operation is initiated upon a call for first stage  
cooling, second stage cooling or dehumidification.  
"ALTERNATE” MODE  
Anytime there is a call for 2 stages of cooling, the unit will not  
operate in the reheat mode, even if there is still a call for  
dehumidification at "HUM".  
When the RCB detects a need for dehumidification (24VAC) at  
"HUM" via the field supplied dehumidistat connected to RHTB-1  
and RHTB-2, and there is not a call for cooling, it energizes the  
HGR, which energizes the SOL 3, SOL 2, and de-energizes  
SOL 1. The unit then operates with circuit #1 in reheat mode  
and circuit #2 in cooling mode.  
The unit will not operate in the reheat mode if there is any call  
for heating.  
All safety devices function as previously described.  
R
Y1  
Y2  
P4  
K1  
G
W1  
W2  
K2  
OCC  
K4  
C
K3  
COM  
`
P6  
P5  
P3  
HGRR  
HGR  
HUM  
DEHUMIDISTAT  
HARNESS  
CONNECTION  
MODE  
SELECTION  
JUMPER  
FIGURE 2: REHEAT CONTROL BOARD  
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UCB  
UNIT CONTROL  
BOARD  
RHB  
REHEAT CONTROL  
BOARD  
HUM  
HUMIDIFY  
TERMINAL  
RHR  
REHEAT  
RELAY  
RHTB  
REHEAT  
TERMINAL  
BLOCK  
FIGURE 3: REHEAT CONTROLS - PART 1  
REHEAT  
SOLENOID  
1
2
REHEAT  
REHEAT  
SOLENOID  
3
SOLENOID  
UCB  
UNIT CONTROL  
BOARD  
RHB  
REHEAT  
CONTROL  
BOARD  
FIGURE 4: REHEAT CONTROLS - PART 2  
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262292-YTG-B-0107  
A ‘VFD-ready’ option provides the provisions for a cus-  
tomer-installed drive. The unit comes with a mounting  
bracket installed in the Blower Access compartment which  
may accommodate other vendor’s drives depending on  
their size. In order to utilize the unit’s mounting bracket,  
the maximum recommended drive dimensions are as fol-  
lows:  
FACTORY-INSTALLED OPTIONS  
• SINGLE INPUT ELECTRONIC ENTHALPY  
ECONOMIZERS - Includes a slide-in / plug-in damper  
assembly with fully modulating spring-return motor  
actuator capable of introducing up to 100% outdoor air  
with nominal 1% leakage type dampers.  
The enthalpy system contains one sensor that monitors  
the outdoor air and determines when the air is cool  
enough and dry enough to provide free cooling.  
For 5-hp motor applications ........................13” H x 6” W x 7” D  
For 7.5 thru 15-hp motor applications.........13” H x 8” W x 8” D  
If the customer-installed drive will not fit in the allotted  
space, then it will have to be mounted within a NEMA-4  
enclosure for outside installation or inside the building on  
a perpendicular wall not subjected to excessive tempera-  
ture, vibration, humidity, dust, corrosive gas, explosive  
gas, etc.  
The rainhood is painted to match the basic unit and must  
be field-assembled before installing.  
• POWER EXHAUST - Our single economizer options are  
available with power exhaust. Whenever the outdoor air  
intake dampers are opened for free cooling, the exhaust  
fan will be energized to prevent the conditioned space  
from being over-pressurized during economizer operation.  
A terminal block located in the control box is provided for  
field connection of the VFD controls.  
The exhaust fan, motor and controls are installed and  
wired at the factory. The rain hood must be assembled  
and installed in the field.  
•
HOT GAS BYPASS - To allow for low cooling load opera-  
tion, a direct-acting pressure-modulating bypass control  
valve installed on the system #1 discharge line is used to  
divert high temperature, high pressure refrigerant around  
the TXV in order to maintain a desired minimum evaporator  
pressure. HGBP is standard on all units with VAV and  
optional with CV units.  
• MOTORIZED OUTDOOR AIR INTAKE DAMPER -  
Includes a slide-in / plug-in damper assembly with a 2-  
position, spring return motor actuator which opens to a  
pre-set position whenever the supply air blower is  
operating and will drive fully closed when the blower unit  
shuts down.  
• FILTER OPTIONS - Standard units are shipped with 2”  
throw-away filters installed. 2” pleated and 4” pleated  
filters are offered as a factory installed option.  
The rain hood is painted to match the basic unit and must  
be field assembled before installing.  
• PHENOLIC COATED EVAPORATOR, REHEAT, AND  
CONDENSER COILS - Special coating process that  
utilizes Technicoat 10-1" processes. Coating is applied by  
total immersion of the complete coil for maximum  
protection.  
• CONVENIENCE OUTLET - This 110 volt outlet can be  
“powered” by the unit with a stepdown transformer or you  
may order the unit with a “non-powered” convenience  
outlet that can be wired in the field.  
• DISCONNECT SWITCH - For gas heat units and cooling  
units with electric heat, a HACR breaker sized to the unit  
is provided. For cooling only units, a switch sized to the  
largest electric heat available for the particular unit is  
provided. Factory installed option only.  
• ELECTRIC HEATERS wired for single point power  
supply. These nickel chromium heater elements are  
provided with limit and automatic reset capability to  
prevent operation at excessive temperatures.  
• VARIABLE AIR VOLUME (VAV) - A factory-installed  
variable frequency drive (VFD), mounted in the Blower  
Access compartment, is used to control the speed of the  
indoor blower motor in order to maintain a constant static  
pressure in the supply duct. A pressure transducer and  
VAV control board are mounted inside the control box.  
The drive comes completely wired and pre-programmed  
from the factory.  
• DOUBLE WALL CONSTRUCTION - Optional double wall  
construction is available to provide smooth inner surfaces  
for easy and effective cleaning to reduce risk of dirt and  
bacterial accumulation. Fiberglass insulation is  
sandwiched between heavy gauge steel sheets to form a  
durable, rigid casing to withstand higher working  
pressures and impact forces. The heavy-duty construction  
provides excellent acoustic and thermal insulation and  
eliminates erosion of insulation material and  
An optional, factory-installed manual bypass switch avail-  
able with factory-installed VFD can be found in the Blower  
Motor Access compartment. The switch can be used to  
either route power to the VFD for modulating control of the  
blower motor, to bypass the drive and operate the motor  
at full speed, or to power the drive (and not the motor) for  
diagnostic purposes.  
contamination of the air stream.  
• BAS - Building Automation System Controls  
(available on two-system cooling product only).  
S implicity® INTELLI-Comfort™ CONTROL - The York®  
S implicity® INTELLI-Comfort™ control is factory installed.  
It includes a supply air sensor, a return air sensor, and an  
outside air sensor. There are provisions for a field installed  
dirty filter indicator switch, an air-proving switch, an Out-  
side Air Humidity sensor, a Return Air Humidity sensor, an  
Inside IAQ sensor, and an Outside Air IAQ sensor. Con-  
Due to space limitations, VAV is not available with any of  
the factory-installed BAS options described below, but is  
available with ‘BAS-ready’ models. Terminal blocks are  
provided in the control box for field wiring of the customer-  
installed BAS.  
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struction mode operation, 365-day real time clock with 7  
day programming plus holiday scheduling is built-in. Two  
different modes of demand ventilation are achieved  
through the INTELLI-Comfort™ using CO sensors. It  
2
Factory installed smoke detectors in the return air,  
may be subjected to freezing temperatures during  
“off” times due to out side air infiltration. these smoke  
detectors have an operational limit of 32°F to 131°F.  
smoke detectors installed in areas that could be out  
side those limitations will have to be moved to prevent  
having false alarms.  
uses an inside CO sensor to perform Demand Ventila-  
2
tion. It can also use an Outside CO sensor to perform Dif-  
2
ferential Demand Ventilation. It uses a Patented Comfort  
Ventilation algorithm to provide comfortable ventilation air  
temperature. The patented economizer-loading algorithm  
will protect the equipment when harsh operating condi-  
tions exist. Humidity in the occupied space or return duct  
can be monitored and controlled via humidity sensors and  
the on-board connection for hot gas re-heat system. It  
uses the INTELLI-Start™ algorithm to maximize energy  
savings by recovering the building from the Unoccupied  
Setpoints to the Occupied Setpoints just in time for the  
Occupied Time Period to begin. The S implicity® INTELLI-  
Comfort™ balances space temperature, ventilation air  
• STAINLESS STEEL HEAT EXCHANGER - For  
applications in corrosive environments, this option  
provides a full stainless steel heat exchanger assembly.  
• STAINLESS STEEL DRAIN PAN - An optional rust-proof  
stainless steel drain pan is available to provide years of  
trouble-free operation in corrosive environments.  
temperature, CO and humidity for ultimate comfort.  
• PHASE MONITORS - Designed to prevent unit damage.  
The phase monitor will shut the unit down in an out-of-  
phase condition.  
2
S implicity® INTELLI-Comfort™ with ModLINC CON-  
TROL - The York® S implicity® INTELLI-Comfort™ with  
ModLINC control is factory installed. It includes all the fea-  
tures of the INTELLI-Comfort™ control with an additional  
control to translate communications from MODBUS to the  
BACnet MSTP protocol.  
• HIGH SPEED DRIVE - May include a belt, blower pulley,  
motor pulley or a motor change to enhance blower  
performance.  
• DIRTY FILTER SWITCH - This kit includes a differential  
pressure switch that energizes the fault light on the unit  
thermostat, indicating that there is an abnormally high  
pressure drop across the filters. Factory installed option or  
field installed accessory.  
Novar® BAS CONTROL - The Novar® ETC-3 building  
automation system controller is factory installed. Includes  
supply air sensor, return air sensor, dirty filter indicator  
switch, and air proving switch.  
• HINGED FILTER DOOR/”TOOLLESS” BLOWER AND  
ACCESS PANELS (not hinged) - This option allows for  
easy access and maintenance.  
JOHNSON CONTROLS BAS CONTROL - The Johnson  
Control YK-UNT-1126 building automation system control-  
ler is factory installed. Includes supply air sensor, return  
air sensor, dirty filter indicator switch, and air proving  
switch.  
NOTE: Knobs are shipped separately within the unit to  
prevent shipping damage. These must be field  
installed for toolless operation.  
CPC BAS CONTROL - The Computer Process Controls  
Model 810-3060 ARTC Advanced Rooftop building auto-  
mation system controller is factory installed. Includes sup-  
ply air sensor, return air sensor, dirty filter indicator switch  
and air proving switch.  
• LOW SPEED DRIVE - Includes a motor change when  
high airflow is not required. (WR300 & WR240 only)  
FIELD-INSTALLED ACCESSORIES  
• SINGLE INPUT ELECTRONIC ENTHALPY  
ECONOMIZERS - Includes a slide-in / plug-in damper  
assembly with fully modulating spring-return motor  
actuator capable of introducing up to 100% outdoor air  
with nominal 1% leakage type dampers.  
HONEYWELL BAS CONTROL - The Honeywell W7750C  
building automation system controller is factory installed.  
Includes air supply sensor, return air sensor, dirty filter  
indicator switch, and air proving switch.  
The enthalpy system contains one sensor that monitors  
the outdoor air and determines when the air is cool  
enough and dry enough to provide free cooling.  
• COIL GUARD - Customers can purchase a coil guard kit  
to protect the condenser coil from damage. This is not a  
hail guard kit.  
The rainhood is painted to match the basic unit and must  
be field-assembled before installing.  
• SMOKE DETECTORS - (supply air & return air) The  
smoke detectors stop operation of the unit by interrupting  
power to the control board if smoke is detected within the  
air compartment.  
• MOTORIZED OUTDOOR AIR INTAKE DAMPER -  
Includes a slide-in / plug-in damper assembly with a 2-  
position, spring return motor actuator which opens to  
some pre-set position whenever the supply air blower is  
operating and will drive fully closed when the blower unit  
shuts down.  
The rain hood is painted to match the basic unit and must  
be field-assembled before installing.  
Unitary Products Group  
9
 
262292-YTG-B-0107  
Power exhaust is not available as a field installed  
option.  
pressure on units with an economizer without power  
exhaust. This accessory includes a rain hood, a bird  
screen and a fully assembled damper. With bottom duct  
connections, the damper should be mounted over the  
opening in the return air panel. With horizontal ductwork,  
the accessory should be mounted on the return air duct.  
• ROOF CURBS - Fourteen-inch high roof curbs provide a  
water-tight seal between the unit and the finished roof.  
These full perimeter curbs meet the requirements of the  
National Roofing Contractors Association (NRCA) and are  
shipped knocked-down for field assembly.  
• ENTHALPY ACCESSORY CONTROL KIT - This kit  
contains the required components to convert a single  
enthalpy economizer to dual enthalpy.  
They're designed to fit inside the base rails of the unit and  
include both a wood nailing strip and duct hanger  
supports.  
• BURGLAR BARS - Mount in the supply and return  
openings to prevent entry into the duct work.  
• HIGH ALTITUDE NATURAL GAS - Burner orifices and  
pilot orifices are provided for proper furnace operation at  
altitudes up to 6,000 feet.  
• FLUE EXHAUST EXTENSION KIT - In locations with  
wind or weather conditions which may interfere with  
proper exhausting of furnace combustion products, this kit  
can be installed to prevent the flue exhaust from entering  
nearby fresh air intakes.  
• PROPANE - Burner orifices, pilot orifices and gas valve  
parts are provided to convert a natural gas furnace to  
propane.  
• WOOD SKID - Allows unit to be handled with 90” forks.  
• HIGH ALTITUDE PROPANE - Burner orifices and pilot  
orifices are provided for proper furnace operation at  
altitudes up to 6,000 feet. This accessory supplements the  
basic propane conversion kit.  
• CO SENSOR - Senses CO levels and automatically  
2
2
overrides the economizer when levels rise above the  
present limits.  
• SIDE DUCT FLANGES - One-inch flanges replace the  
supply and return air panels on the rear of the unit to  
accommodate horizontal duct connections. These flanges  
can also be used individually for bottom supply/horizontal  
return or horizontal supply/bottom return. They cannot be  
used on units with power exhaust.  
• COIL GUARD - Customers can purchase a coil guard kit  
to protect the condenser coil from damage. This is not a  
hail guard kit.  
• PHASE MONITORS - Designed to prevent unit damage.  
The phase monitor will shut the unit down in an out-of-  
phase condition.  
• BAROMETRIC RELIEF DAMPER - This damper  
accessory can be used to relieve internal building air  
10  
Unitary Products Group  
262292-YTG-B-0107  
1
TABLE 1: SOUND POWER RATING  
-12  
SOUND POWER (db 10  
Watts)  
ESP  
IWG  
BLOWER  
UNIT  
SIZE  
Octave Band Centerline Frequency (Hz)  
dB(A)  
@
10Ft.2  
CFM  
SWL  
dB(A)  
RPM  
BHP  
63  
125  
250  
500  
1,000  
2,000  
4,000  
8,000  
WR180  
WR240  
6,000  
8,000  
1.00  
1.00  
1.30  
1,080  
1,120  
1160  
4.60  
6.65  
12.5  
99  
99  
89  
92  
98  
82  
85  
91  
84  
87  
93  
77  
80  
86  
72  
75  
81  
67  
70  
76  
89  
92  
98  
56  
102  
108  
102  
108  
59  
WR300 10,000  
65  
1. These values have been accessed using a model of sound propagation from a point source into the hemispheric\free field. The dBA  
values provided are to be used for reference only. Calculation of dBA values cover matters of system design and the fan manufacture  
has no way of knowing the details of each system. This constitutes and expectation to any specification or guarantee requiring a dBA  
value or sound data in any other form than sound power level ratings.  
2. At a distance of 10 feet from the blower.  
1
TABLE 2: CAPACITY RATINGS - (ARI 360)  
TABLE 3: GAS HEAT RATINGS  
EER2  
IPLV3  
MODEL  
MBH  
MODEL  
MBH INPUT  
MBH OUTPUT  
300  
400  
300  
400  
300  
400  
240  
320  
240  
320  
240  
320  
WR180N/S24  
WR180N/S32  
COOLING ONLY  
WR180C/E00  
WR240C/E00  
WR300C/E00  
180  
240  
300  
11.9  
11.0  
10.0  
12.7  
11.3  
10.6  
WR240N/S24  
WR240N/S32  
COOLING WITH GAS HEAT  
WR180N/S  
WR300N/S24  
WR300N/S32  
180  
240  
300  
11.9  
11.0  
10.0  
12.7  
11.3  
10.6  
WR240N/S  
WR300N/S  
NOTE:All gas units are two-stage heating.  
COOLING WITH ELECTRIC HEAT  
WR180E18  
First stage is 50% of total.  
S.S.E. = Steady State Efficiency (80%) - output divided by input.  
180  
180  
178  
178  
240  
240  
238  
238  
300  
300  
298  
298  
11.9  
11.9  
11.7  
11.7  
11.0  
11.0  
10.8  
10.8  
10.0  
10.0  
9.8  
12.7  
12.7  
12.5  
12.5  
11.3  
11.3  
11.1  
11.1  
10.6  
10.6  
10.4  
10.4  
WR180E36  
WR180E54  
WR180E72  
WR240E18  
WR240E36  
WR240E54  
For units with VFD and electric or gas heat, the  
speed of the indoor blower motor continues to  
be controlled by duct static pressure via the  
VAV control board.  
WR240E72  
WR300E18  
WR300E36  
WR300E54  
If there are VAV boxes present in the duct sys-  
tem, the boxes must be driven to the full-open  
position using a customer-supplied power  
source to assure adequate airflow across elec-  
tric heating elements or gas heat exchanger  
tubes.  
WR300E72  
9.8  
1. Certified in accordance with the Unitary Large Equipment  
certification program which is based on ARI Standard 340/  
360.  
2. EER = Energy Efficiency Ratio at full load - the cooling  
capacity in Btu’s per hour (Btuh) divided by the power input in  
watts, expressed in Btuh per watt (Btuh/watt).  
3. IPLV = Integrated Part Load Value.  
Unitary Products Group  
11  
     
262292-YTG-B-0107  
TABLE 4: COOLING CAPACITIES FOR WR180  
Temperature of Air on Condenser Coil  
2
Air on Evaporator Coil  
75°F  
85°F  
Sensible Capacity (MBH)*  
Sensible Capacity (MBH)*  
Return Dry Bulb (°F)  
Total Total2  
Cap.1 Input  
(MBH) (kW)  
Total Total  
WB  
(°F)  
1
Return Dry Bulb (°F)  
CFM  
3750  
Cap.  
Input  
(MBH) (kW)  
90  
85  
80  
75  
70  
65  
90  
85  
80  
75  
70  
65  
77  
72  
67  
62  
77  
72  
67  
62  
57  
77  
72  
67  
62  
57  
77  
72  
67  
62  
57  
72  
67  
62  
57  
72  
67  
62  
57  
217  
200  
184  
165  
227  
210  
192  
172  
171  
237  
219  
201  
180  
178  
247  
228  
209  
187  
186  
236  
217  
194  
193  
245  
224  
201  
200  
10.8  
10.5  
10.2  
9.9  
74  
71  
59  
86  
113  
132  
66  
45  
72  
99  
117  
48  
78  
108  
129  
135  
52  
30  
57  
84  
103  
31  
61  
16  
43  
70  
88  
14  
44  
74  
95  
100  
11  
45  
78  
101  
107  
9
45  
82  
107  
114  
47  
210  
193  
177  
160  
219  
202  
185  
167  
166  
228  
210  
192  
174  
173  
237  
219  
200  
181  
180  
226  
207  
187  
186  
233  
213  
193  
192  
11.8  
11.6  
11.3  
11.0  
11.9  
11.7  
11.4  
11.1  
11.1  
12.1  
11.8  
11.5  
11.3  
11.2  
12.2  
11.9  
11.6  
11.4  
11.3  
11.9  
11.7  
11.4  
11.3  
12.0  
11.7  
11.4  
11.4  
80  
73  
99  
58  
85  
111  
130  
64  
43  
70  
96  
116  
47  
76  
106  
127  
132  
50  
28  
55  
82  
101  
29  
59  
14  
40  
67  
86  
12  
41  
71  
92  
97  
10  
42  
74  
98  
104  
8
43  
115  
156  
163  
100  
130  
161  
171  
171  
127  
146  
165  
178  
178  
153  
161  
170  
186  
186  
176  
184  
193  
193  
191  
199  
199  
200  
100  
128  
153  
83  
113  
143  
164  
171  
95  
126  
159  
175  
178  
107  
138  
170  
186  
186  
150  
187  
193  
193  
163  
199  
199  
200  
114  
148  
159  
99  
126  
152  
81  
111  
140  
162  
166  
90  
123  
155  
171  
173  
99  
134  
169  
180  
180  
145  
181  
186  
186  
157  
192  
192  
192  
11.0  
10.6  
10.3  
10.0  
10.0  
11.1  
10.8  
10.4  
10.1  
10.1  
11.2  
10.9  
10.5  
10.2  
10.2  
10.9  
10.6  
10.3  
10.2  
10.9  
10.6  
10.3  
10.3  
96  
128  
158  
166  
166  
117  
143  
168  
173  
173  
136  
157  
178  
180  
180  
171  
185  
186  
186  
184  
192  
192  
192  
93  
4500  
5250  
6000  
126  
147  
152  
72  
105  
139  
161  
168  
79  
115  
151  
176  
183  
125  
164  
188  
191  
134  
177  
199  
200  
91  
123  
144  
150  
70  
102  
135  
158  
164  
76  
111  
146  
172  
178  
120  
158  
182  
185  
129  
170  
192  
192  
88  
112  
118  
32  
65  
98  
121  
127  
32  
109  
115  
30  
62  
94  
118  
124  
31  
85  
82  
118  
141  
148  
56  
115  
138  
144  
53  
92  
69  
88  
66  
128  
153  
160  
99  
138  
162  
166  
106  
148  
171  
171  
105  
130  
137  
73  
112  
136  
140  
77  
124  
149  
155  
95  
133  
157  
160  
101  
142  
164  
165  
101  
126  
133  
70  
108  
131  
135  
74  
78  
103  
110  
44  
86  
82  
6750  
7500  
110  
114  
49  
91  
114  
114  
106  
109  
46  
87  
109  
109  
120  
142  
143  
114  
137  
137  
95°F  
105°F  
77  
72  
67  
62  
77  
72  
67  
62  
57  
77  
72  
67  
62  
57  
77  
72  
67  
62  
57  
72  
67  
62  
57  
72  
67  
62  
57  
203  
186  
170  
155  
211  
194  
177  
161  
161  
219  
202  
184  
168  
168  
228  
209  
191  
174  
174  
216  
197  
179  
179  
222  
203  
185  
185  
12.8  
12.6  
12.4  
12.1  
12.9  
12.7  
12.5  
12.3  
12.2  
13.0  
12.8  
12.6  
12.4  
12.3  
13.2  
13.0  
12.7  
12.5  
12.4  
13.0  
12.8  
12.5  
12.5  
13.0  
12.8  
12.5  
12.5  
87  
72  
98  
57  
83  
109  
129  
62  
42  
68  
94  
114  
45  
74  
103  
124  
129  
48  
27  
53  
79  
99  
27  
56  
85  
107  
112  
28  
59  
91  
115  
120  
29  
12  
38  
64  
84  
10  
39  
68  
89  
95  
8
39  
71  
95  
100  
6
40  
74  
100  
106  
42  
195  
179  
164  
151  
202  
186  
170  
157  
156  
209  
192  
175  
162  
162  
216  
199  
181  
168  
167  
204  
187  
172  
172  
210  
192  
177  
177  
14.3  
14.1  
13.9  
13.7  
14.4  
14.2  
14.0  
13.8  
13.7  
14.5  
14.3  
14.1  
13.8  
13.8  
14.6  
14.4  
14.2  
13.9  
13.9  
14.4  
14.2  
13.9  
13.9  
14.4  
14.2  
13.9  
13.9  
77  
69  
96  
53  
80  
107  
125  
59  
38  
64  
91  
109  
41  
70  
22  
49  
75  
94  
23  
52  
81  
101  
105  
23  
55  
87  
109  
113  
24  
58  
92  
116  
121  
62  
6
113  
139  
155  
97  
111  
144  
148  
95  
33  
60  
78  
5
34  
63  
83  
87  
3
35  
66  
88  
93  
1
35  
70  
94  
98  
37  
74  
95  
98  
39  
78  
97  
97  
3750  
4500  
124  
152  
80  
109  
137  
159  
161  
88  
119  
151  
167  
168  
96  
130  
164  
174  
174  
140  
174  
179  
179  
151  
185  
185  
185  
122  
149  
77  
106  
135  
155  
156  
84  
116  
148  
161  
162  
92  
126  
161  
167  
167  
136  
169  
172  
172  
145  
177  
177  
177  
126  
155  
161  
161  
108  
139  
171  
168  
168  
119  
153  
186  
174  
174  
165  
186  
179  
179  
177  
185  
185  
185  
91  
124  
153  
155  
156  
113  
136  
162  
162  
162  
131  
149  
167  
167  
167  
160  
172  
172  
172  
172  
177  
177  
177  
88  
120  
142  
147  
68  
117  
137  
141  
64  
99  
119  
123  
44  
99  
79  
96  
75  
5250  
6000  
131  
155  
160  
74  
111  
135  
140  
51  
127  
149  
154  
69  
107  
129  
134  
47  
108  
141  
167  
173  
116  
152  
176  
179  
124  
163  
185  
185  
85  
63  
96  
104  
138  
162  
166  
111  
148  
169  
172  
119  
158  
177  
177  
81  
119  
145  
151  
91  
127  
151  
154  
97  
115  
139  
144  
86  
123  
145  
147  
92  
122  
128  
66  
103  
127  
130  
70  
109  
131  
131  
78  
99  
6750  
7500  
102  
105  
43  
82  
104  
104  
120  
122  
65  
105  
124  
123  
136  
158  
158  
131  
150  
150  
1. The capacities are gross ratings. For net capacity, deduct air blower motor, MBh = 3.415 x kW. Refer to the appropriate Blower  
Performance table for the kW of the supply air blower motor.  
2. These ratings include the condenser fan motors (total 1 kW) and the compressor motors but not the supply air blower motor.  
All Sensible Capacity  
12  
Unitary Products Group  
 
262292-YTG-B-0107  
TABLE 4: COOLING CAPACITIES FOR WR180 (CONTINUED)  
Temperature of Air on Condenser Coil  
Air on Evaporator Coil  
115°F  
125°F  
Sensible Capacity (MBH)*  
Return Dry Bulb (°F)  
Sensible Capacity (MBH)*  
Return Dry Bulb (°F)  
2
Total Total2  
Cap.1 Input  
(MBH) (kW)  
Total Total  
Cap.  
WB  
1
CFM  
(°F)  
Input  
(MBH) (kW)  
90  
85  
80  
75  
70  
65  
90  
85  
80  
75  
70  
65  
77  
72  
67  
62  
77  
72  
187  
172  
157  
147  
193  
177  
162  
152  
151  
198  
183  
167  
156  
156  
204  
188  
172  
161  
160  
193  
176  
165  
165  
198  
181  
169  
169  
15.8  
15.6  
15.4  
15.2  
15.9  
15.7  
15.5  
15.2  
15.2  
15.9  
15.7  
15.5  
15.3  
15.2  
16.0  
15.8  
15.6  
15.4  
15.3  
15.8  
15.6  
15.4  
15.3  
15.8  
15.6  
15.3  
15.2  
73  
66  
93  
50  
77  
104  
121  
55  
34  
61  
88  
104  
36  
66  
17  
44  
71  
88  
18  
47  
77  
96  
99  
18  
51  
83  
103  
106  
19  
54  
88  
-
179  
165  
151  
143  
184  
169  
155  
147  
146  
188  
173  
159  
151  
150  
193  
177  
162  
154  
154  
182  
166  
158  
157  
186  
170  
162  
161  
17.3  
17.1  
16.9  
16.7  
17.3  
17.1  
16.9  
16.7  
16.6  
17.4  
17.2  
17.0  
16.8  
16.7  
17.4  
17.2  
17.0  
16.8  
16.7  
17.2  
17.0  
16.8  
16.7  
17.1  
16.9  
16.7  
16.6  
74  
60  
91  
47  
74  
101  
117  
51  
30  
57  
84  
100  
32  
62  
13  
40  
67  
83  
13  
43  
73  
90  
92  
14  
46  
79  
97  
99  
14  
49  
84  
-
110  
146  
147  
92  
28  
55  
72  
-
29  
58  
77  
80  
-
30  
62  
82  
86  
-
31  
66  
87  
91  
32  
69  
89  
90  
34  
73  
90  
89  
108  
142  
145  
92  
23  
50  
66  
-
24  
54  
71  
73  
-
25  
58  
76  
78  
-
26  
61  
81  
84  
28  
65  
82  
83  
29  
69  
82  
82  
3750  
120  
147  
74  
103  
133  
151  
151  
81  
113  
145  
156  
156  
88  
122  
157  
160  
160  
131  
163  
165  
165  
140  
169  
169  
169  
118  
143  
70  
100  
130  
146  
146  
80  
109  
142  
149  
150  
90  
118  
147  
153  
154  
127  
154  
157  
157  
135  
161  
161  
161  
122  
151  
151  
151  
111  
133  
156  
156  
156  
130  
145  
160  
160  
160  
156  
165  
165  
165  
167  
169  
169  
169  
84  
119  
146  
147  
146  
111  
130  
150  
149  
150  
130  
142  
153  
153  
154  
151  
157  
157  
157  
161  
161  
161  
161  
81  
4500  
5250  
6000  
67  
62  
57  
77  
72  
67  
62  
57  
77  
72  
67  
62  
57  
72  
67  
62  
57  
72  
67  
62  
57  
114  
133  
136  
60  
95  
111  
128  
130  
56  
92  
114  
117  
39  
109  
111  
35  
92  
71  
88  
67  
124  
144  
148  
65  
103  
124  
127  
42  
121  
139  
141  
60  
100  
118  
120  
37  
99  
77  
95  
72  
134  
156  
160  
106  
144  
163  
164  
113  
153  
169  
169  
111  
133  
137  
82  
119  
138  
140  
87  
131  
151  
153  
102  
139  
156  
157  
108  
148  
161  
161  
108  
127  
130  
77  
115  
131  
133  
82  
110  
114  
57  
104  
107  
52  
94  
90  
6750  
7500  
113  
115  
60  
100  
116  
116  
107  
107  
55  
95  
109  
108  
126  
143  
143  
122  
135  
136  
1. The capacities are gross ratings. For net capacity, deduct air blower motor, MBh = 3.415 x kW. Refer to the appropriate Blower  
Performance table for the kW of the supply air blower motor.  
2. These ratings include the condenser fan motors (total 1 kW) and the compressor motors but not the supply air blower motor.  
All Sensible Capacity  
Unitary Products Group  
13  
262292-YTG-B-0107  
TABLE 5: COOLING CAPACITIES FOR WR240  
Temperature of Air on Condenser Coil  
2
Air on Evaporator Coil  
75°F  
85°F  
Sensible Capacity (MBH)*  
Sensible Capacity (MBH)*  
Return Dry Bulb (°F)  
Total Total2  
Cap.1 Input  
(MBH) (kW)  
Total Total  
WB  
(°F)  
1
Return Dry Bulb (°F)  
CFM  
5000  
Cap.  
Input  
(MBH) (kW)  
90  
85  
80  
75  
70  
65  
90  
85  
80  
75  
70  
65  
77  
72  
67  
62  
77  
72  
67  
62  
57  
77  
72  
67  
62  
57  
77  
72  
67  
62  
57  
72  
67  
62  
57  
72  
67  
62  
57  
287  
263  
238  
219  
304  
278  
252  
232  
229  
320  
293  
265  
244  
241  
337  
308  
279  
257  
254  
302  
274  
252  
249  
296  
268  
247  
244  
15.1  
14.6  
14.2  
13.8  
15.2  
14.8  
14.3  
14.0  
13.8  
15.4  
14.9  
14.4  
14.1  
13.9  
15.5  
15.1  
14.6  
14.2  
14.1  
15.0  
14.5  
14.2  
14.0  
14.9  
14.4  
14.1  
13.9  
117  
152  
187  
215  
133  
171  
210  
228  
229  
149  
190  
233  
241  
241  
165  
210  
254  
254  
254  
213  
249  
249  
249  
216  
244  
244  
244  
99  
80  
62  
96  
43  
78  
113  
139  
45  
25  
59  
94  
120  
23  
62  
100  
129  
139  
22  
278  
254  
230  
212  
294  
269  
243  
224  
222  
310  
283  
256  
236  
234  
325  
297  
269  
248  
246  
291  
264  
243  
241  
285  
258  
238  
236  
16.4  
16.0  
15.6  
15.3  
16.5  
16.1  
15.7  
15.4  
15.2  
16.7  
16.3  
15.9  
15.5  
15.3  
16.8  
16.4  
16.0  
15.7  
15.5  
16.4  
16.0  
15.6  
15.4  
16.3  
15.9  
15.6  
15.3  
112  
150  
187  
210  
130  
169  
207  
222  
222  
148  
187  
226  
234  
234  
167  
206  
246  
246  
246  
209  
241  
241  
241  
212  
236  
236  
236  
96  
77  
58  
93  
39  
74  
108  
134  
41  
20  
55  
89  
115  
19  
57  
134  
168  
198  
111  
150  
188  
217  
227  
123  
165  
207  
235  
240  
135  
181  
227  
254  
254  
184  
230  
249  
249  
187  
224  
244  
244  
115  
150  
176  
89  
128  
166  
195  
205  
98  
140  
182  
214  
225  
107  
153  
199  
233  
245  
155  
202  
239  
245  
157  
205  
244  
244  
131  
165  
198  
108  
146  
185  
214  
221  
120  
162  
204  
230  
234  
131  
178  
224  
246  
246  
180  
227  
241  
241  
183  
231  
236  
236  
112  
146  
172  
85  
124  
162  
191  
199  
94  
136  
179  
210  
219  
102  
149  
195  
230  
239  
151  
198  
233  
237  
153  
201  
236  
236  
131  
157  
67  
106  
144  
173  
183  
73  
115  
157  
189  
200  
78  
124  
170  
205  
217  
126  
173  
210  
216  
128  
176  
215  
215  
127  
153  
63  
102  
140  
169  
177  
68  
111  
153  
185  
193  
74  
120  
166  
201  
210  
122  
169  
204  
208  
124  
172  
207  
207  
84  
79  
6000  
7000  
8000  
122  
151  
161  
47  
118  
147  
154  
43  
95  
124  
132  
17  
90  
64  
85  
59  
132  
164  
175  
50  
107  
138  
149  
21  
127  
159  
167  
45  
102  
134  
142  
16  
96  
67  
91  
62  
142  
176  
188  
97  
144  
181  
187  
99  
113  
148  
160  
69  
115  
152  
158  
70  
137  
172  
181  
93  
140  
174  
179  
95  
108  
143  
152  
64  
110  
145  
150  
65  
8500  
9000  
147  
186  
186  
118  
157  
157  
142  
177  
177  
113  
148  
148  
95°F  
105°F  
77  
72  
67  
62  
77  
72  
67  
62  
57  
77  
72  
67  
62  
57  
77  
72  
67  
62  
57  
72  
67  
62  
57  
72  
67  
62  
57  
270  
246  
222  
206  
285  
259  
234  
217  
216  
299  
273  
247  
228  
227  
314  
286  
259  
239  
238  
280  
253  
234  
233  
274  
248  
229  
228  
17.6  
17.3  
17.0  
16.7  
17.8  
17.5  
17.2  
16.8  
16.6  
17.9  
17.6  
17.3  
17.0  
16.7  
18.1  
17.8  
17.5  
17.1  
16.9  
17.7  
17.4  
17.1  
16.8  
17.7  
17.4  
17.1  
16.8  
105  
147  
188  
205  
127  
166  
204  
216  
216  
149  
184  
220  
227  
227  
171  
203  
236  
238  
238  
206  
232  
233  
233  
209  
227  
228  
228  
93  
73  
54  
89  
123  
149  
59  
35  
69  
104  
130  
36  
15  
50  
84  
111  
14  
52  
255  
234  
212  
195  
269  
246  
224  
206  
205  
283  
259  
236  
217  
216  
297  
272  
248  
228  
226  
266  
242  
223  
222  
261  
237  
218  
217  
19.4  
19.1  
18.8  
18.5  
19.6  
19.3  
19.0  
18.7  
18.1  
19.8  
19.5  
19.2  
18.8  
18.3  
19.9  
19.6  
19.3  
19.0  
18.4  
19.6  
19.3  
18.9  
18.4  
19.5  
19.2  
18.9  
18.3  
103  
143  
183  
192  
127  
162  
197  
204  
205  
150  
180  
211  
216  
216  
173  
199  
225  
226  
226  
202  
220  
222  
222  
206  
216  
217  
217  
89  
70  
50  
85  
119  
144  
55  
31  
65  
100  
125  
32  
11  
46  
80  
105  
9
48  
127  
162  
197  
104  
143  
181  
210  
216  
116  
158  
201  
224  
227  
128  
174  
220  
238  
238  
177  
224  
233  
233  
179  
227  
228  
228  
108  
143  
169  
82  
120  
159  
188  
193  
90  
132  
175  
207  
212  
98  
145  
191  
226  
232  
147  
194  
227  
230  
150  
197  
228  
228  
124  
158  
190  
101  
139  
177  
202  
205  
112  
154  
197  
214  
216  
123  
169  
216  
226  
226  
172  
212  
222  
222  
175  
209  
217  
217  
104  
139  
164  
78  
116  
155  
183  
185  
86  
128  
170  
201  
204  
94  
140  
186  
220  
223  
143  
190  
218  
220  
145  
193  
217  
217  
5000  
6000  
97  
75  
93  
70  
136  
165  
170  
64  
106  
149  
181  
186  
69  
115  
162  
196  
203  
117  
165  
197  
200  
120  
168  
198  
198  
113  
142  
147  
38  
91  
132  
160  
162  
59  
102  
144  
175  
178  
64  
110  
157  
190  
193  
113  
160  
188  
190  
115  
163  
186  
187  
109  
137  
139  
33  
86  
120  
125  
12  
54  
97  
129  
134  
10  
114  
117  
7
49  
92  
123  
125  
5
51  
97  
131  
134  
53  
100  
129  
130  
55  
103  
126  
126  
80  
76  
7000  
8000  
123  
155  
160  
40  
118  
149  
152  
34  
86  
56  
81  
132  
167  
173  
88  
135  
168  
171  
90  
103  
138  
144  
58  
105  
138  
141  
60  
127  
161  
164  
83  
130  
159  
160  
85  
8500  
9000  
138  
168  
169  
108  
139  
139  
133  
156  
157  
1. The capacities are gross ratings. For net capacity, deduct air blower motor, MBh = 3.415 x kW. Refer to the appropriate Blower  
Performance table for the kW of the supply air blower motor.  
2. These ratings include the condenser fan motors (total 1 kW) and the compressor motors but not the supply air blower motor.  
All Sensible Capacity  
14  
Unitary Products Group  
 
262292-YTG-B-0107  
TABLE 5: COOLING CAPACITIES FOR WR240 (CONTINUED)  
Temperature of Air on Condenser Coil  
Air on Evaporator Coil  
115°F  
125°F  
Sensible Capacity (MBH)*  
Return Dry Bulb (°F)  
Sensible Capacity (MBH)*  
Return Dry Bulb (°F)  
2
Total Total2  
Cap.1 Input  
(MBH) (kW)  
Total Total  
Cap.  
WB  
1
CFM  
(°F)  
Input  
(MBH) (kW)  
90  
85  
80  
75  
70  
65  
90  
85  
80  
75  
70  
65  
77  
72  
67  
62  
77  
72  
240  
221  
202  
185  
253  
233  
214  
195  
194  
267  
246  
225  
206  
205  
280  
258  
236  
216  
215  
252  
231  
211  
210  
247  
226  
206  
205  
21.3  
21.0  
20.7  
20.4  
21.4  
21.1  
20.8  
20.5  
19.7  
21.6  
21.3  
21.0  
20.7  
19.8  
21.8  
21.5  
21.1  
20.8  
20.0  
21.4  
21.1  
20.8  
19.9  
21.3  
21.0  
20.7  
19.8  
101  
140  
179  
184  
126  
158  
190  
194  
194  
151  
176  
202  
205  
205  
176  
195  
213  
215  
215  
198  
209  
210  
210  
202  
205  
205  
205  
86  
66  
46  
81  
115  
139  
51  
27  
61  
96  
120  
28  
66  
104  
131  
131  
29  
-
42  
76  
100  
-
43  
81  
108  
108  
-
44  
87  
116  
117  
-
46  
92  
124  
125  
48  
225  
208  
192  
175  
238  
220  
203  
185  
184  
250  
232  
214  
195  
194  
263  
244  
225  
205  
204  
238  
220  
200  
199  
233  
215  
195  
194  
23.1  
22.8  
22.5  
22.2  
23.3  
23.0  
22.7  
22.3  
21.2  
23.4  
23.1  
22.8  
22.5  
21.4  
23.6  
23.3  
23.0  
22.7  
21.5  
23.2  
22.9  
22.6  
21.5  
23.1  
22.8  
22.5  
21.4  
100  
136  
174  
175  
126  
154  
183  
184  
184  
151  
172  
192  
193  
194  
176  
190  
204  
204  
204  
194  
198  
199  
199  
194  
194  
194  
194  
81  
63  
97  
43  
77  
111  
134  
47  
23  
57  
92  
115  
23  
62  
100  
126  
123  
24  
-
37  
72  
95  
-
38  
77  
103  
100  
-
39  
82  
110  
108  
-
41  
87  
120  
155  
184  
97  
101  
135  
159  
74  
112  
150  
177  
177  
81  
124  
166  
196  
196  
89  
135  
181  
214  
214  
138  
185  
209  
210  
141  
190  
205  
205  
117  
151  
174  
93  
5000  
131  
154  
70  
108  
146  
172  
170  
77  
119  
161  
190  
187  
84  
130  
177  
205  
204  
134  
181  
200  
199  
137  
186  
194  
194  
135  
173  
194  
194  
108  
150  
192  
205  
205  
119  
165  
211  
215  
215  
168  
201  
210  
210  
172  
190  
205  
205  
89  
131  
169  
184  
184  
105  
146  
188  
194  
194  
117  
160  
204  
204  
204  
164  
189  
199  
199  
168  
171  
194  
194  
85  
6000  
7000  
8000  
67  
62  
57  
77  
72  
67  
62  
57  
77  
72  
67  
62  
57  
72  
67  
62  
57  
72  
67  
62  
57  
127  
154  
154  
55  
123  
149  
147  
50  
97  
71  
93  
66  
139  
169  
169  
59  
113  
143  
143  
29  
135  
163  
161  
54  
108  
137  
134  
24  
105  
152  
184  
184  
108  
155  
179  
180  
111  
159  
175  
175  
76  
100  
147  
178  
175  
103  
151  
170  
169  
106  
155  
163  
163  
70  
122  
154  
154  
78  
125  
149  
149  
80  
117  
148  
145  
73  
120  
140  
139  
76  
118  
115  
43  
95  
90  
8500  
9000  
119  
119  
50  
98  
114  
114  
110  
108  
45  
94  
101  
102  
129  
144  
144  
124  
132  
132  
1. The capacities are gross ratings. For net capacity, deduct air blower motor, MBh = 3.415 x kW. Refer to the appropriate Blower  
Performance table for the kW of the supply air blower motor.  
2. These ratings include the condenser fan motors (total 1 kW) and the compressor motors but not the supply air blower motor.  
All Sensible Capacity  
Unitary Products Group  
15  
262292-YTG-B-0107  
TABLE 6: COOLING CAPACITIES FOR WR300  
Temperature of Air on Condenser Coil  
2
Air on Evaporator Coil  
75°F  
85°F  
Sensible Capacity (MBH)*  
Sensible Capacity (MBH)*  
Return Dry Bulb (°F)  
Total Total2  
Cap.1 Input  
(MBH) (kW)  
Total Total  
WB  
(°F)  
1
Return Dry Bulb (°F)  
CFM  
6250  
Cap.  
Input  
(MBH) (kW)  
90  
85  
80  
75  
70  
65  
90  
85  
80  
75  
70  
65  
77  
72  
67  
62  
77  
72  
67  
62  
57  
77  
72  
67  
62  
57  
77  
72  
67  
62  
57  
72  
67  
62  
57  
72  
67  
62  
57  
331  
315  
299  
273  
380  
362  
343  
313  
305  
378  
360  
342  
312  
304  
376  
358  
340  
310  
303  
356  
338  
309  
301  
354  
336  
307  
299  
17.7  
17.2  
16.7  
16.3  
20.7  
20.1  
19.5  
19.0  
18.5  
21.0  
20.3  
19.7  
19.2  
18.7  
21.2  
20.6  
19.9  
19.4  
18.9  
20.6  
20.0  
19.4  
18.9  
20.7  
20.1  
19.5  
19.0  
186  
212  
237  
265  
217  
247  
277  
305  
305  
220  
249  
279  
304  
304  
222  
252  
282  
303  
303  
259  
290  
301  
301  
266  
299  
299  
299  
162  
187  
213  
257  
189  
218  
248  
299  
305  
190  
220  
250  
301  
304  
192  
222  
252  
303  
303  
228  
259  
300  
301  
234  
265  
299  
299  
137  
163  
188  
231  
160  
189  
219  
269  
288  
161  
191  
221  
270  
290  
162  
192  
222  
272  
291  
197  
228  
279  
295  
202  
234  
286  
299  
113  
138  
164  
207  
131  
161  
190  
240  
259  
131  
161  
191  
241  
260  
132  
162  
192  
242  
261  
166  
197  
248  
264  
170  
202  
255  
267  
88  
64  
90  
322  
303  
284  
259  
371  
349  
327  
298  
292  
370  
348  
326  
298  
292  
370  
348  
326  
297  
292  
347  
326  
297  
291  
347  
325  
296  
291  
20.0  
19.4  
18.8  
18.4  
23.3  
22.6  
21.9  
21.4  
20.9  
23.4  
22.7  
22.0  
21.5  
21.0  
23.6  
22.9  
22.1  
21.7  
21.1  
23.0  
22.3  
21.8  
21.3  
23.1  
22.4  
21.9  
21.4  
168  
199  
231  
253  
197  
234  
271  
292  
292  
200  
237  
274  
292  
292  
203  
240  
278  
292  
292  
248  
284  
291  
291  
255  
291  
291  
291  
144  
175  
206  
249  
168  
205  
242  
289  
292  
170  
207  
245  
290  
292  
172  
210  
248  
292  
292  
216  
255  
291  
291  
223  
263  
291  
291  
119  
151  
182  
223  
139  
176  
213  
260  
279  
141  
178  
215  
263  
282  
142  
180  
217  
266  
285  
185  
224  
274  
288  
191  
230  
282  
291  
95  
70  
46  
78  
109  
149  
53  
114  
140  
182  
102  
132  
161  
211  
230  
102  
132  
162  
212  
231  
102  
132  
162  
212  
231  
135  
166  
217  
233  
139  
170  
223  
235  
126  
158  
198  
110  
147  
184  
231  
250  
111  
148  
186  
233  
253  
112  
150  
187  
236  
255  
154  
193  
243  
257  
159  
198  
250  
259  
102  
133  
174  
82  
118  
155  
202  
221  
82  
119  
156  
204  
223  
82  
119  
157  
205  
225  
123  
162  
211  
226  
126  
166  
217  
227  
115  
158  
73  
103  
133  
182  
201  
73  
102  
132  
182  
201  
72  
102  
132  
182  
201  
104  
135  
187  
202  
107  
138  
191  
203  
89  
7500  
7750  
8000  
126  
173  
192  
52  
89  
127  
174  
194  
52  
89  
127  
175  
195  
92  
131  
180  
195  
94  
8650  
9300  
134  
185  
194  
95°F  
105°F  
77  
72  
67  
62  
77  
72  
67  
62  
57  
77  
72  
67  
62  
57  
77  
72  
67  
62  
57  
72  
67  
62  
57  
72  
67  
62  
57  
313  
291  
268  
245  
362  
336  
310  
283  
279  
362  
337  
311  
283  
280  
363  
338  
312  
284  
281  
339  
313  
285  
282  
340  
314  
286  
283  
22.2  
21.5  
20.8  
20.5  
25.8  
25.0  
24.2  
23.8  
23.2  
25.9  
25.1  
24.3  
23.9  
23.3  
26.0  
25.2  
24.3  
23.9  
23.4  
25.3  
24.5  
24.1  
23.6  
25.5  
24.7  
24.3  
23.8  
150  
187  
200  
241  
177  
220  
264  
279  
279  
180  
224  
269  
280  
280  
183  
229  
274  
281  
281  
236  
278  
282  
282  
244  
283  
283  
283  
125  
163  
200  
241  
148  
192  
235  
279  
279  
150  
195  
239  
280  
280  
153  
198  
243  
281  
281  
205  
252  
282  
282  
211  
260  
283  
283  
101  
138  
176  
214  
119  
163  
206  
251  
270  
121  
165  
210  
255  
275  
123  
168  
213  
259  
279  
173  
220  
268  
281  
179  
227  
277  
283  
77  
53  
90  
28  
66  
103  
141  
32  
297  
276  
256  
232  
343  
319  
295  
268  
266  
343  
319  
296  
268  
266  
343  
320  
296  
269  
266  
321  
297  
270  
267  
322  
298  
271  
268  
24.4  
23.7  
23.1  
22.6  
28.3  
27.6  
26.8  
26.3  
25.8  
28.5  
27.7  
26.9  
26.4  
25.9  
28.6  
27.8  
27.1  
26.6  
26.1  
27.9  
27.1  
26.6  
26.1  
28.0  
27.2  
26.7  
26.2  
139  
180  
220  
230  
166  
212  
257  
266  
266  
171  
216  
260  
266  
266  
176  
219  
263  
266  
266  
227  
266  
267  
267  
235  
268  
268  
268  
117  
155  
194  
225  
137  
183  
229  
262  
266  
140  
186  
232  
264  
266  
142  
189  
236  
266  
266  
196  
245  
267  
267  
203  
253  
268  
268  
92  
68  
44  
83  
122  
151  
51  
20  
59  
98  
127  
22  
68  
113  
148  
170  
22  
114  
151  
190  
90  
134  
178  
222  
241  
91  
136  
180  
226  
245  
92  
137  
183  
229  
248  
142  
189  
237  
249  
147  
195  
244  
250  
131  
170  
199  
109  
154  
200  
234  
256  
110  
156  
203  
238  
260  
112  
159  
206  
241  
264  
165  
213  
250  
266  
170  
221  
259  
268  
107  
146  
175  
80  
125  
171  
205  
227  
81  
127  
173  
208  
230  
82  
129  
175  
211  
233  
133  
182  
219  
235  
138  
189  
226  
236  
6250  
7500  
127  
165  
61  
105  
149  
194  
213  
61  
106  
150  
196  
215  
62  
107  
152  
198  
218  
111  
157  
205  
218  
114  
163  
212  
218  
76  
97  
120  
165  
184  
32  
142  
177  
198  
51  
76  
97  
68  
7750  
8000  
121  
166  
186  
31  
144  
179  
201  
51  
114  
149  
171  
21  
77  
98  
68  
122  
168  
188  
79  
126  
174  
187  
82  
145  
181  
203  
102  
151  
187  
203  
106  
156  
194  
203  
115  
150  
173  
71  
119  
156  
172  
73  
8650  
9300  
130  
180  
185  
124  
162  
171  
1. The capacities are gross ratings. For net capacity, deduct air blower motor, MBh = 3.415 x kW. Refer to the appropriate Blower  
Performance table for the kW of the supply air blower motor.  
2. These ratings include the condenser fan motors (total 1 kW) and the compressor motors but not the supply air blower motor.  
All Sensible Capacity  
16  
Unitary Products Group  
 
262292-YTG-B-0107  
TABLE 6: COOLING CAPACITIES FOR WR300 (CONTINUED)  
Temperature of Air on Condenser Coil  
Air on Evaporator Coil  
115°F  
125°F  
Sensible Capacity (MBH)*  
Return Dry Bulb (°F)  
Sensible Capacity (MBH)*  
Return Dry Bulb (°F)  
2
Total Total2  
Cap.1 Input  
(MBH) (kW)  
Total Total  
Cap.  
WB  
1
CFM  
(°F)  
Input  
(MBH) (kW)  
90  
85  
80  
75  
70  
65  
90  
85  
80  
75  
70  
65  
77  
72  
67  
62  
77  
72  
281  
262  
243  
220  
324  
302  
280  
254  
252  
324  
302  
280  
254  
252  
323  
302  
280  
253  
252  
303  
281  
254  
253  
304  
282  
255  
254  
26.6  
26.0  
25.3  
24.8  
30.9  
30.2  
29.4  
28.8  
28.4  
31.1  
30.4  
29.6  
29.0  
28.5  
31.3  
30.5  
29.8  
29.2  
28.7  
30.5  
29.8  
29.2  
28.7  
30.5  
29.8  
29.1  
28.7  
128  
172  
216  
218  
155  
203  
250  
252  
252  
162  
207  
251  
252  
252  
168  
210  
252  
252  
252  
218  
253  
253  
253  
226  
254  
254  
254  
108  
148  
188  
209  
127  
174  
222  
245  
252  
129  
177  
225  
249  
252  
131  
180  
229  
252  
252  
187  
238  
253  
253  
194  
247  
254  
254  
84  
60  
36  
76  
116  
137  
41  
12  
52  
92  
113  
12  
60  
107  
131  
155  
11  
265  
248  
230  
208  
305  
285  
265  
239  
239  
304  
284  
264  
239  
238  
303  
284  
264  
238  
238  
284  
265  
239  
239  
285  
265  
240  
239  
28.8  
28.2  
27.5  
26.9  
33.5  
32.8  
32.0  
31.3  
30.9  
33.7  
33.0  
32.3  
31.6  
31.1  
34.0  
33.2  
32.5  
31.8  
31.4  
33.1  
32.4  
31.7  
31.3  
33.0  
32.3  
31.6  
31.2  
122  
165  
207  
207  
149  
194  
239  
239  
239  
157  
198  
238  
238  
238  
164  
201  
238  
238  
238  
209  
239  
239  
239  
218  
239  
239  
239  
99  
75  
51  
93  
27  
69  
111  
122  
31  
-
45  
87  
98  
-
52  
101  
114  
141  
-
124  
164  
185  
98  
100  
140  
161  
70  
117  
164  
188  
213  
70  
118  
166  
190  
215  
71  
120  
168  
193  
218  
125  
175  
201  
220  
129  
182  
208  
221  
141  
183  
193  
116  
166  
215  
228  
239  
118  
168  
218  
233  
238  
120  
171  
222  
238  
238  
178  
231  
239  
239  
185  
239  
239  
239  
117  
159  
170  
88  
137  
186  
199  
227  
89  
139  
189  
202  
230  
90  
141  
191  
205  
233  
147  
200  
214  
236  
153  
208  
222  
239  
6250  
135  
146  
59  
109  
158  
171  
198  
60  
110  
160  
173  
201  
60  
111  
161  
175  
203  
116  
168  
182  
205  
121  
176  
190  
207  
146  
193  
217  
241  
100  
148  
196  
220  
245  
101  
150  
199  
223  
248  
156  
206  
232  
251  
162  
214  
241  
254  
88  
80  
7500  
7750  
8000  
67  
62  
57  
77  
72  
67  
62  
57  
77  
72  
67  
62  
57  
72  
67  
62  
57  
72  
67  
62  
57  
136  
159  
184  
41  
129  
142  
170  
31  
89  
60  
80  
51  
137  
161  
186  
41  
108  
132  
157  
11  
130  
143  
171  
30  
101  
114  
142  
-
89  
59  
81  
51  
138  
163  
188  
93  
144  
169  
189  
97  
108  
132  
158  
62  
113  
138  
157  
65  
131  
145  
173  
85  
137  
151  
174  
89  
101  
115  
143  
53  
106  
120  
143  
56  
8650  
9300  
150  
176  
189  
117  
144  
157  
143  
158  
175  
111  
126  
143  
1. The capacities are gross ratings. For net capacity, deduct air blower motor, MBh = 3.415 x kW. Refer to the appropriate Blower  
Performance table for the kW of the supply air blower motor.  
2. These ratings include the condenser fan motors (total 1 kW) and the compressor motors but not the supply air blower motor.  
All Sensible Capacity  
Unitary Products Group  
17  
262292-YTG-B-0107  
TABLE 7: COOLING CAPACITIES FOR WR180 (ALTERNATE REHEAT MODE)  
Temperature of Air on Condenser Coil  
Air on Evaporator Coil  
75°F  
85°F  
Sensible Capacity (MBH)*  
Return Dry Bulb (°F)  
90 85 80 75 70 65  
Sensible Capacity (MBH)*  
Return Dry Bulb (°F)  
2
Total  
Cap.1  
(MBH)  
Total2  
Input  
(kW)  
Total  
Total  
WB  
1
CFM  
(°F)  
Cap.  
Input  
(kW)  
(MBH)  
90 85 80 75 70 65  
67  
88  
79  
70  
90  
81  
72  
92  
82  
73  
95  
85  
75  
98  
88  
78  
10.6  
10.1  
9.9  
23 21 19 16 14 11  
44 42 39 37 35 32  
48 46 44 41 39 36  
32 29 25 22 19 15  
59 56 53 49 46 43  
61 59 58 55 51 48  
40 36 32 28 23 19  
73 70 66 61 57 53  
73 73 72 68 64 60  
49 44 39 33 28 23  
75 74 72 66 61 56  
75 75 75 70 65 59  
58 52 46 39 33 27  
78 78 78 71 65 59  
78 78 78 72 65 59  
95°F  
80  
72  
66  
82  
74  
68  
85  
76  
70  
87  
78  
72  
90  
81  
74  
11.2  
10.8  
10.6  
11.3  
10.8  
10.7  
11.3  
10.9  
10.7  
11.3  
10.9  
10.7  
11.3  
10.9  
10.7  
18 16 14 12 10  
9
4500  
5250  
6000  
6750  
7500  
62  
57  
67  
62  
57  
67  
62  
57  
67  
62  
57  
67  
62  
57  
35 34 32 30 28 26  
39 37 35 34 32 30  
26 24 21 18 15 12  
53 50 47 44 41 39  
55 54 53 50 47 44  
35 31 27 24 20 16  
70 66 62 58 55 51  
70 70 70 66 62 58  
43 38 34 29 25 20  
72 70 68 63 59 55  
72 72 72 67 63 58  
51 45 40 34 29 24  
74 74 74 68 63 58  
74 74 74 68 63 58  
105°F  
10.7  
10.2  
10.0  
10.8  
10.3  
10.0  
10.8  
10.2  
10.0  
10.7  
10.2  
10.0  
67  
62  
57  
67  
62  
57  
67  
62  
57  
67  
62  
57  
67  
62  
57  
71  
64  
61  
74  
68  
64  
78  
71  
67  
79  
72  
68  
81  
73  
70  
11.8  
11.4  
11.3  
11.8  
11.5  
11.4  
11.9  
11.5  
11.4  
11.9  
11.5  
11.4  
11.9  
11.5  
11.4  
12 11 10  
8
7
6
65  
60  
57  
69  
63  
60  
72  
66  
63  
73  
66  
64  
74  
67  
64  
12.5  
12.1  
12.1  
12.6  
12.2  
12.1  
12.6  
12.2  
12.1  
12.6  
12.2  
12.1  
12.6  
12.2  
12.1  
8
8
7
6
5
4
4500  
5250  
6000  
6750  
7500  
27 25 24 23 22 20  
30 29 27 26 25 24  
21 19 16 14 12 10  
46 44 41 39 37 35  
48 48 47 45 43 40  
29 26 23 20 17 14  
65 62 59 56 52 49  
67 67 67 63 60 57  
36 32 29 25 21 17  
67 66 64 60 57 53  
68 68 68 64 60 57  
43 39 34 30 25 21  
70 70 70 65 61 56  
70 70 70 65 61 56  
115°F  
21 20 19 18 17 16  
23 22 21 20 19 18  
16 15 13 11  
9
8
41 40 38 36 34 33  
43 42 42 40 38 36  
24 22 19 16 14 11  
62 60 57 54 52 49  
63 63 62 60 57 55  
31 28 24 21 18 15  
63 62 61 57 54 51  
64 64 63 60 57 54  
37 34 30 26 22 18  
64 64 64 60 57 53  
64 64 64 61 57 53  
125°F  
67  
62  
57  
67  
62  
57  
67  
62  
57  
67  
62  
57  
67  
62  
57  
60  
55  
53  
63  
58  
56  
66  
60  
59  
66  
61  
59  
66  
61  
59  
13.3  
12.8  
12.8  
13.3  
12.9  
12.8  
13.4  
12.9  
12.9  
13.4  
12.9  
12.9  
13.4  
12.9  
12.9  
5
4
4
3
3
2
54  
50  
50  
57  
53  
52  
60  
55  
54  
59  
55  
54  
59  
55  
54  
14.0  
13.5  
13.5  
14.1  
13.6  
13.6  
14.1  
13.6  
13.6  
14.1  
13.6  
13.6  
14.1  
13.6  
13.6  
-
-
-
-
-
-
4500  
5250  
6000  
6750  
7500  
15 14 14 13 13 12  
16 15 15 14 14 13  
12 11  
37 36 35 33 32 31  
37 37 36 35 34 33  
19 17 15 13 11  
59 57 55 53 51 49  
59 59 58 56 54 52  
25 23 20 18 15 12  
59 58 57 54 52 49  
59 59 59 56 53 51  
32 28 25 22 19 16  
59 59 59 56 53 49  
59 59 59 56 53 50  
9
9
8
9
8
7
9
8
6
8
8
5
8
8
4
8
8
3
9
8
7
6
33 31 31 30 29 29  
31 31 31 30 30 29  
14 13 11  
9
9
8
6
55 54 53 52 50 49  
54 54 54 53 51 50  
20 18 16 14 12 10  
54 54 53 52 49 47  
54 54 54 52 50 48  
26 23 21 18 16 13  
54 54 54 51 48 46  
54 54 54 52 49 46  
1. The capacities are gross ratings. For net capacity, deduct air blower motor, MBh = 3.415 x kW. Refer to the appropriate Blower  
Performance table for the kW of the supply air blower motor.  
2. These ratings include the condenser fan motors (total 1 kW) and the compressor motors but not the supply air blower motor.  
All Sensible Capacity  
18  
Unitary Products Group  
 
262292-YTG-B-0107  
TABLE 8: COOLING CAPACITIES FOR WR240 (ALTERNATE REHEAT MODE)  
Temperature of Air on Condenser Coil  
Air on Evaporator Coil  
75°F  
85°F  
Sensible Capacity (MBH)*  
Return Dry Bulb (°F)  
90 85 80 75 70 65  
Sensible Capacity (MBH)*  
Return Dry Bulb (°F)  
90 85 80 75 70 65  
2
Total  
Cap.1  
(MBH)  
Total2  
Input  
(kW)  
Total  
Total  
WB  
1
CFM  
(°F)  
Cap.  
Input  
(kW)  
(MBH)  
67  
100  
93  
83  
109  
102  
90  
119  
110  
98  
113  
105  
93  
107  
99  
15.9  
15.1  
15.1  
15.8  
15.1  
15.0  
15.7  
15.0  
14.9  
15.7  
15.0  
14.9  
15.7  
14.9  
14.9  
20 18 16 14 12 10  
44 42 40 38 36 35  
50 48 46 45 43 41  
31 28 24 21 18 15  
68 65 62 59 56 53  
74 74 71 68 64 61  
42 37 33 29 24 20  
92 88 83 79 75 70  
98 98 95 91 86 82  
42 38 33 29 25 21  
88 88 85 80 76 72  
93 93 92 87 83 79  
42 38 34 30 26 22  
88 88 86 82 78 73  
88 88 88 84 80 76  
95°F  
94  
86  
77  
103  
95  
85  
112  
103  
93  
107  
98  
88  
101  
93  
16.6  
15.9  
15.8  
16.5  
15.8  
15.7  
16.4  
15.8  
15.7  
16.4  
15.8  
15.7  
16.4  
15.8  
15.7  
13 12 11  
9
8
7
6000  
7000  
8000  
8450  
8900  
62  
57  
67  
62  
57  
67  
62  
57  
67  
62  
57  
67  
62  
57  
30 29 27 26 25 23  
34 33 32 30 29 28  
25 23 20 18 15 12  
57 54 52 49 47 44  
63 63 60 58 55 52  
38 34 30 26 22 18  
84 80 76 72 69 65  
93 93 89 85 81 77  
39 35 31 27 23 19  
84 84 80 76 72 68  
88 88 86 82 78 75  
40 36 32 29 25 21  
84 84 83 79 75 71  
84 84 84 80 76 72  
105°F  
88  
84  
67  
62  
57  
67  
62  
57  
67  
62  
57  
67  
62  
57  
67  
62  
57  
87  
79  
72  
96  
88  
79  
106  
96  
87  
101  
92  
83  
96  
87  
79  
17.3  
16.7  
16.5  
17.2  
16.6  
16.4  
17.2  
16.6  
16.4  
17.2  
16.6  
16.4  
17.2  
16.6  
16.4  
7
6
5
5
4
3
77  
68  
63  
86  
76  
70  
94  
84  
78  
90  
80  
74  
86  
76  
71  
18.2  
17.7  
17.4  
18.2  
17.7  
17.4  
18.2  
17.7  
17.4  
18.1  
17.6  
17.3  
18.1  
17.6  
17.3  
3
8
9
3
7
9
3
7
9
2
7
8
2
6
8
9
2
6
7
7
6000  
7000  
8000  
8450  
8900  
16 15 14 14 13 12  
18 18 17 16 16 15  
20 18 16 14 12 10  
46 44 42 40 38 35  
53 52 50 48 46 44  
34 30 27 23 20 16  
76 73 69 66 62 59  
87 86 83 79 76 72  
36 32 29 25 22 18  
78 78 75 71 68 64  
83 83 81 77 74 70  
38 35 31 27 24 20  
79 79 79 75 72 67  
79 79 79 75 72 68  
115°F  
15 14 12 11  
36 35 33 32 30 28  
43 43 41 40 38 36  
28 25 22 19 16 13  
65 62 59 57 54 51  
78 77 74 71 68 65  
29 26 23 20 17 14  
68 66 63 60 57 54  
74 74 72 69 67 64  
30 27 24 21 19 16  
71 69 66 63 60 57  
71 71 71 68 65 62  
125°F  
67  
62  
57  
67  
62  
57  
67  
62  
57  
67  
62  
57  
67  
62  
57  
67  
57  
54  
75  
64  
61  
83  
71  
68  
80  
68  
65  
77  
65  
63  
19.1  
18.7  
18.3  
19.1  
18.7  
18.3  
19.2  
18.7  
18.3  
19.1  
18.6  
18.2  
19.0  
18.5  
18.2  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
57  
46  
46  
64  
52  
52  
72  
58  
58  
70  
56  
56  
67  
54  
54  
20.0  
19.7  
19.2  
20.1  
19.7  
19.2  
20.1  
19.8  
19.3  
20.0  
19.7  
19.2  
19.9  
19.5  
19.0  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
6000  
7000  
8000  
8450  
8900  
11 10  
8
7
6
5
6
5
5
4
3
3
27 26 25 24 23 21  
34 33 32 31 30 29  
21 19 17 15 13 10  
54 52 50 47 45 43  
68 67 65 62 60 58  
22 19 17 15 13 11  
55 53 51 48 46 44  
65 65 64 61 59 57  
22 20 18 16 14 12  
55 53 51 49 47 45  
63 63 63 61 59 56  
18 17 16 16 15 14  
25 24 24 23 22 22  
15 14 12 11  
43 41 40 38 37 35  
58 57 56 54 52 51  
14 13 12 10  
41 40 38 37 36 34  
56 56 55 54 52 51  
13 12 11 10  
40 38 37 36 35 33  
54 54 54 53 52 51  
9
7
9
7
9
7
1. The capacities are gross ratings. For net capacity, deduct air blower motor, MBh = 3.415 x kW. Refer to the appropriate Blower  
Performance table for the kW of the supply air blower motor.  
2. These ratings include the condenser fan motors (total 1 kW) and the compressor motors but not the supply air blower motor.  
All Sensible Capacity  
Unitary Products Group  
19  
 
262292-YTG-B-0107  
TABLE 9: COOLING CAPACITIES FOR WR300 (ALTERNATE REHEAT MODE)  
Temperature of Air on Condenser Coil  
Air on Evaporator Coil  
75°F  
85°F  
Sensible Capacity (MBH)*  
Return Dry Bulb (°F)  
90 85 80 75 70 65  
Sensible Capacity (MBH)*  
Return Dry Bulb (°F)  
2
Total  
Cap.1  
(MBH)  
Total2  
Input  
(kW)  
Total  
Total  
WB  
1
CFM  
(°F)  
Cap.  
Input  
(kW)  
(MBH)  
90 85 80 75 70 65  
67  
140  
128  
117  
139  
127  
116  
138  
126  
115  
138  
125  
115  
137  
125  
114  
21.1  
19.9  
18.8  
21.2  
20.1  
18.9  
21.3  
20.2  
19.0  
21.4  
20.2  
19.1  
21.4  
20.2  
19.1  
19 17 16 14 12 10  
88 86 84 82 80 78  
104 102 100 98 96 94  
21 19 17 15 12 10  
88 86 84 82 80 78  
104 102 100 98 96 94  
22 20 18 15 13 11  
88 86 84 82 80 78  
104 102 100 98 96 93  
24 22 19 17 15 12  
98 95 92 90 88 85  
109 108 107 105 102 100  
26 23 21 19 16 14  
107 104 100 98 96 93  
114 114 114 112 109 107  
95°F  
129  
119  
113  
128  
118  
112  
127  
117  
111  
127  
117  
111  
127  
117  
111  
22.3  
21.1  
20.3  
22.4  
21.2  
20.4  
22.5  
21.3  
20.4  
22.5  
21.3  
20.5  
22.5  
21.3  
20.5  
12 11  
68 67 66 65 64 62  
81 80 79 78 77 76  
13 12 10  
75 74 73 71 70 69  
90 88 87 86 84 83  
14 13 11 10  
82 81 79 78 76 75  
98 96 95 93 92 91  
9
8
7
6
7500  
7750  
8000  
8500  
9000  
62  
57  
67  
62  
57  
67  
62  
57  
67  
62  
57  
67  
62  
57  
9
8
7
9
7
16 15 13 12 10  
9
95 94 92 90 89 87  
104 104 103 101 100 98  
18 17 15 13 12 10  
108 107 105 103 102 100  
111 111 111 109 107 106  
105°F  
67  
62  
57  
67  
62  
57  
67  
62  
57  
67  
62  
57  
67  
62  
57  
118  
110  
108  
117  
109  
107  
116  
108  
106  
117  
109  
107  
118  
110  
108  
23.4  
22.3  
21.7  
23.5  
22.3  
21.8  
23.6  
22.4  
21.9  
23.6  
22.4  
21.9  
23.6  
22.4  
21.9  
4
4
3
3
2
2
108  
101  
98  
107  
100  
97  
106  
99  
96  
107  
100  
97  
108  
101  
98  
24.8  
23.6  
23.1  
24.9  
23.7  
23.2  
24.9  
23.8  
23.3  
24.9  
23.8  
23.3  
24.9  
23.8  
23.3  
3
3
2
2
1
1
7500  
7750  
8000  
8500  
9000  
49 48 48 48 47 47  
59 59 58 58 57 57  
5
62 62 61 61 60 60  
75 75 74 73 73 72  
6
75 75 74 73 73 72  
91 90 90 89 89 88  
9
93 92 92 91 90 89  
99 99 99 98 97 96  
11 10  
31 31 30 30 30 29  
37 37 36 36 36 35  
5
51 50 50 49 48 48  
60 59 59 58 58 57  
6
70 69 69 68 67 66  
82 82 81 80 79 79  
8
79 79 78 77 76 75  
87 87 86 85 84 83  
9
5
4
4
3
3
4
4
3
2
2
6
5
4
4
3
6
5
4
3
3
8
7
6
5
5
7
6
5
4
3
9
8
7
6
8
7
6
5
4
110 108 107 106 105 104  
108 108 108 107 106 105  
115°F  
89 88 87 86 85 84  
92 92 91 90 89 88  
125°F  
67  
62  
57  
67  
62  
57  
67  
62  
57  
67  
62  
57  
67  
62  
57  
97  
91  
88  
97  
91  
87  
96  
90  
86  
98  
92  
88  
99  
93  
89  
26.2  
25.0  
24.6  
26.2  
25.0  
24.6  
26.3  
25.1  
24.7  
26.3  
25.1  
24.7  
26.3  
25.1  
24.7  
-
-
-
-
-
-
87  
82  
77  
87  
82  
77  
86  
81  
76  
88  
83  
78  
90  
85  
80  
27.6  
26.4  
26.0  
27.6  
26.4  
26.0  
27.6  
26.5  
26.1  
27.7  
26.5  
26.1  
27.7  
26.5  
26.1  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
7500  
7750  
8000  
8500  
9000  
14 13 13 12 12 12  
15 15 15 14 14 13  
4
39 39 38 37 37 36  
45 44 43 43 42 41  
7
65 64 63 62 62 61  
74 73 72 71 70 69  
7
66 65 64 63 62 61  
75 74 73 72 71 70  
7
4
3
2
2
1
4
3
2
2
28 27 27 26 25 24  
29 29 28 27 27 26  
7
60 59 58 57 56 55  
65 64 63 62 61 60  
6
53 52 50 49 48 47  
63 62 60 59 58 57  
6
47 45 43 42 40 39  
61 59 58 56 55 54  
6
5
4
3
2
6
5
4
-
-
6
5
4
3
2
5
4
3
-
-
6
5
4
3
2
4
3
2
-
-
68 66 65 64 63 62  
77 76 74 73 72 71  
1. The capacities are gross ratings. For net capacity, deduct air blower motor, MBh = 3.415 x kW. Refer to the appropriate Blower  
Performance table for the kW of the supply air blower motor.  
2. These ratings include the condenser fan motors (total 1 kW) and the compressor motors but not the supply air blower motor.  
All Sensible Capacity  
20  
Unitary Products Group  
 
262292-YTG-B-0107  
ꢀꢁꢂ7RQꢃ0RLVWXUHꢃ5HPRYDOꢃ#ꢃꢄꢅꢅꢅꢃFIP  
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FIGURE 5: WR180 MOISTURE REMOVAL - ALTERNATE MODE  
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FIGURE 6: WR180 MOISTURE REMOVAL - NORMAL MODE  
Unitary Products Group  
21  
   
262292-YTG-B-0107  
20-Ton Moisture Removal @ 8000 cfm  
Alternate mode @ various indoor (wet bulb/dry bulb) conditions  
160  
140  
120  
100  
80  
60  
40  
20  
0
65  
75  
85  
95  
105  
Outdoor Temp ºF  
75/71  
80/71  
75/67  
85/71  
80/67  
85/67  
FIGURE 7: WR240 MOISTURE REMOVAL - ALTERNATE MODE  
20-Ton Moisture Removal @ 8000 cfm  
Normal mode @ various indoor (wet bulb/dry bulb) conditions  
70  
60  
50  
40  
30  
20  
10  
0
65  
75  
85  
95  
105  
Outdoor Temp ºF  
75/71  
80/71  
75/67  
85/71  
FIGURE 8: WR240 MOISTURE REMOVAL - NORMAL MODE  
22  
Unitary Products Group  
   
262292-YTG-B-0107  
25-Ton Moisture Removal @ 8000 cfm  
Alternate mode @ various indoor (wet bulb/dry bulb) conditions  
180  
160  
140  
120  
100  
80  
60  
40  
20  
0
65  
75  
85  
95  
105  
Outdoor Temp ºF  
75/71  
80/71  
75/67  
85/71  
80/67  
85/67  
FIGURE 9: WR300 MOISTURE REMOVAL - ALTERNATE MODE  
25-Ton Moisture Removal @ 8000 cfm  
Normal mode @ various indoor (wet bulb/dry bulb) conditions  
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
65  
75  
85  
95  
105  
Outdoor Temp ºF  
75/71  
80/71  
75/67  
85/71  
80/67  
FIGURE 10:WR300 MOISTURE REMOVAL - NORMAL MODE  
Unitary Products Group  
23  
   
262292-YTG-B-0107  
use the indoor blower tables for high altitude applications,  
certain corrections are necessary.  
CFM, STATIC PRESSURE, AND POWER - ALTITUDE  
AND TEMPERATURE CORRECTIONS  
The information below should be used to assist in application of  
product when being applied at altitudes at or exceeding 1000  
feet above sea level.  
A centrifugal fan is a "constant volume" device. This means  
that, if the rpm remains constant, the CFM delivered is the  
same regardless of the density of the air. However, since the  
air at high altitude is less dense, less static pressure will be  
generated and less power will be required than a similar  
application at sea level. Air density correction factors are  
shown in Table 10 and Figure 11.  
The air flow rates listed in the standard blower performance  
tables are based on standard air at sea level. As the altitude or  
temperature increases, the density of air decreases. In order to  
TABLE 10: ALTITUDE CORRECTION FACTORS  
ALTITUDE (FEET)  
AIR TEMP  
0
1000  
1.022  
1.002  
0.982  
0.964  
0.947  
0.929  
0.912  
2000  
0.986  
0.966  
0.948  
0.930  
0.913  
0.897  
0.880  
3000  
0.950  
0.931  
0.913  
0.896  
0.880  
0.864  
0.848  
4000  
0.916  
0.898  
0.880  
0.864  
0.848  
0.833  
0.817  
5000  
0.882  
0.864  
0.848  
0.832  
0.817  
0.802  
0.787  
6000  
0.849  
0.832  
0.816  
0.801  
0.787  
0.772  
0.758  
7000  
0.818  
0.802  
0.787  
0.772  
0.758  
0.744  
0.730  
8000  
0.788  
0.772  
0.757  
0.743  
0.730  
0.716  
0.703  
9000  
0.758  
0.743  
0.729  
0.715  
0.702  
0.689  
0.676  
10000  
0.729  
0.715  
0.701  
0.688  
0.676  
0.663  
0.651  
40  
50  
1.060  
1.039  
1.019  
1.000  
0.982  
0.964  
0.946  
60  
70  
80  
90  
100  
The examples below will assist in determining the airflow  
performance of the product at altitude.  
blower tables to select the blower speed and the BHP  
requirement.  
Example 1: What are the corrected CFM, static pressure, and  
BHP at an elevation of 5,000 ft. if the blower performance data  
is 6,000 CFM, 1.5 IWC and 4.0 BHP?  
Solution:  
As in the example above, no temperature  
information is given so 70°F is assumed.  
The 1.5" static pressure given is at an elevation of 5,000 ft. The  
first step is to convert this static pressure to equivalent sea level  
conditions.  
Solution: At an elevation of 5,000 ft the indoor blower will still  
deliver 6,000 CFM if the rpm is unchanged. However, Table 10  
must be used to determine the static pressure and BHP. Since  
no temperature data is given, we will assume an air  
temperature of 70°F. Table 10 shows the correction factor to  
be 0.832.  
Sea level static pressure = 1.5 / .832 = 1.80"  
Enter the blower table at 6000 sCFM and static pressure of  
1.8". The rpm listed will be the same rpm needed at 5,000 ft.  
Corrected static pressure = 1.5 x 0.832 = 1.248 IWC  
Corrected BHP = 4.0 x 0.832 = 3.328  
Suppose that the corresponding BHP listed in the table is 3.2.  
This value must be corrected for elevation.  
Example 2: A system, located at 5,000 feet of elevation, is to  
BHP at 5,000 ft = 3.2 x .832 = 2.66  
deliver 6,000 CFM at a static pressure of 1.5". Use the unit  
24  
Unitary Products Group  
 
262292-YTG-B-0107  
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ꢅꢀꢍꢀꢀꢀ  
ꢂꢀ  
ꢆꢀ  
ꢃꢀ  
ꢇꢀ  
ꢄꢀ  
ꢈꢀ  
ꢅꢀꢀ  
7(03(5$785(ꢃꢆƒ)ꢈ  
FIGURE 11:ALTITUDE/TEMPERATURE CONVERSION FACTOR  
Unitary Products Group  
25  
 
262292-YTG-B-0107  
TABLE 11: WR180 BLOWER PERFORMANCE - 15 TON STANDARD DRIVE (COOLING ONLY) DOWNFLOW  
Blower Performance (Downflow Discharge)  
ESP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP  
0.2 6284 956 3.50 4.20 6080 922 3.14 3.77 5800 889 2.84 3.41 5514 856 2.536 3.04 5290 821 2.209 2.65 5056 788 1.992 2.39  
0.4 5918 957 3.25 3.89 5718 923 2.92 3.51 5434 889 2.61 3.13 5228 857 2.32 2.78 4914 822 2.04 2.45 4668 789 1.85 2.22  
0.6 5590 958 3.05 3.66 5379 925 2.74 3.28 5098 891 2.41 2.90 4829 858 2.18 2.61 4452 823 1.81 2.17 4175 790 1.67 2.01  
0.8 5226 959 2.79 3.34 4985 926 2.45 2.95 4639 893 2.18 2.62 4336 860 1.91 2.30 3937 825 1.58 1.90 3608 791 1.42 1.70  
1.0 4801 961 2.52 3.03 4529 928 2.23 2.68 4141 894 1.95 2.34 3754 861 1.69 2.03 3222 826 1.35 1.62 2752 792 1.13 1.35  
1.2 4326 962 2.28 2.73 3912 930 1.95 2.34 3405 896 1.59 1.91 2964 863 1.38 1.65  
1.4 3650 965 1.95 2.34 3199 931 1.62 1.95  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1 turn  
2 turns  
3 turns  
4 turns  
5 turns  
6 turns  
15-Ton Standard Drive, Cooling Only, Bottom Connection  
1VP62 x BK105  
7000  
6500  
6000  
5500  
5000  
4500  
4000  
3500  
3000  
2500  
1 Turn  
2 Turns  
3 Turns  
4 Turns  
5 Turns  
6 Turns  
0.0  
0.2  
0.4  
0.6  
0.8  
1.0  
1.2  
1.4  
External Static ("WC)  
26  
Unitary Products Group  
 
262292-YTG-B-0107  
TABLE 12: WR180 BLOWER PERFORMANCE - 15 TON STANDARD DRIVE (GAS HEAT) DOWNFLOW  
Blower Performance (Downflow Discharge)  
ESP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP  
0.2 6158 956 3.29 3.95 5958 922 2.96 3.55 5684 889 2.67 3.20 5404 856 2.38 2.86 5184 821 2.08 2.49 4955 788 1.87 2.25  
0.4 5800 957 3.05 3.66 5604 923 2.75 3.30 5325 889 2.45 2.94 5123 857 2.18 2.62 4816 822 1.92 2.31 4575 789 1.74 2.09  
0.6 5478 958 2.87 3.44 5271 925 2.57 3.09 4996 891 2.27 2.72 4732 858 2.05 2.46 4363 823 1.70 2.04 4092 790 1.57 1.89  
0.8 5121 959 2.62 3.14 4885 926 2.31 2.77 4546 893 2.05 2.46 4249 860 1.80 2.16 3858 825 1.48 1.78 3536 791 1.33 1.60  
1.0 4705 961 2.37 2.85 4438 928 2.10 2.52 4058 894 1.83 2.20 3679 861 1.59 1.91 3158 826 1.27 1.52 2697 792 1.06 1.27  
1.2 4239 962 2.14 2.57 3834 930 1.83 2.20 3337 896 1.49 1.79 2905 863 1.29 1.55  
1.4 3577 965 1.83 2.20 3135 931 1.52 1.83  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1 turn  
2 turns  
3 turns  
4 turns  
5 turns  
6 turns  
15-Ton Standard Drive, Gas Heat, Bottom Connection  
1VP62 x BK105  
7000  
6500  
6000  
5500  
5000  
4500  
4000  
3500  
3000  
2500  
1 Turn  
2 Turns  
3 Turns  
4 Turns  
5 Turns  
6 Turns  
0.0  
0.2  
0.4  
0.6  
0.8  
1.0  
1.2  
1.4  
External Static ("WC)  
Unitary Products Group  
27  
 
262292-YTG-B-0107  
TABLE 13: WR180 BLOWER PERFORMANCE - 15 TON HIGH STATIC DRIVE (COOLING ONLY) DOWNFLOW  
Blower Performance (Downflow Discharge)  
ESP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP  
0.2 7695 1120 5.68 6.93 7434 1082 5.12 6.25 7139 1043 4.55 5.55 6853 1005 4.10 4.92 6537 966 3.614 4.34 6173 926 3.20 3.84  
0.4 7344 1122 5.34 6.51 7089 1083 4.80 5.86 6791 1044 4.32 5.28 6497 1005 3.80 4.57 6157 966 3.28 3.94 5791 927 2.92 3.50  
0.6 6994 1123 4.99 6.08 6751 1084 4.48 5.47 6477 1046 4.06 4.87 6190 1006 3.63 4.36 5855 967 3.25 3.90 5430 927 2.74 3.29  
0.8 6711 1125 4.77 5.83 6478 1086 4.29 5.24 6196 1046 3.85 4.62 5864 1007 3.41 4.09 5434 968 2.95 3.54 5023 928 2.54 3.04  
1.0 6415 1126 4.54 5.54 6193 1087 4.09 4.90 5802 1048 3.58 4.30 5449 1008 3.07 3.68 5017 969 2.71 3.25 4554 929 2.21 2.66  
1.2 6032 1127 4.22 5.15 5823 1088 3.80 4.56 5418 1049 3.28 3.93 5011 1009 2.79 3.34 4554 970 2.40 2.88 4030 930 1.99 2.39  
1.4 5659 1128 3.89 4.67 5463 1089 3.50 4.20 4996 1049 3.00 3.60 4549 1010 2.48 2.98 4120 970 2.09 2.51 3216 931 1.63 1.95  
1.6 5315 1130 3.60 4.32 5042 1090 3.23 3.88 4481 1050 2.68 3.21 4004 1011 2.20 2.64 3222 971 1.75 2.09  
1.8 4733 1131 3.15 3.78 4402 1091 2.83 3.40 3756 1052 2.28 2.73  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1 turn  
2 turns  
3 turns  
4 turns  
5 turns  
6 turns  
7.5 HP motor  
5 HP motor  
15-Ton High Static Drive, Cooling Only, Bottom Connection  
1VP62 x BK90  
8000  
1 Turn  
7500  
7000  
6500  
6000  
5500  
5000  
4500  
4000  
3500  
3000  
2 Turns  
3 Turns  
4 Turns  
5 Turns  
6 Turns  
0.0  
0.2  
0.4  
0.6  
0.8  
1.0  
1.2  
1.4  
1.6  
1.8  
2.0  
External Static ("WC)  
28  
Unitary Products Group  
 
262292-YTG-B-0107  
TABLE 14: WR180 BLOWER PERFORMANCE - 15 TON HIGH STATIC DRIVE (GAS HEAT) DOWNFLOW  
Blower Performance (Downflow Discharge)  
ESP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP  
0.2 7541 1120 5.34 6.51 7285 1082 4.81 5.87 6996 1043 4.28 5.22 6716 1005 3.85 4.63 6406 966 3.40 4.08 6050 926 3.00 3.61  
0.4 7197 1122 5.02 6.12 6947 1083 4.51 5.50 6655 1044 4.06 4.88 6367 1005 3.58 4.29 6034 966 3.08 3.70 5675 927 2.74 3.29  
0.6 6854 1123 4.69 5.72 6616 1084 4.21 5.14 6347 1046 3.81 4.58 6066 1006 3.41 4.09 5738 967 3.06 3.67 5321 927 2.58 3.09  
0.8 6576 1125 4.49 5.48 6348 1086 4.04 4.84 6072 1046 3.62 4.35 5747 1007 3.20 3.84 5325 968 2.78 3.33 4923 928 2.38 2.86  
1.0 6287 1126 4.27 5.21 6069 1087 3.84 4.61 5686 1048 3.37 4.04 5340 1008 2.88 3.46 4917 969 2.54 3.05 4463 929 2.08 2.50  
1.2 5911 1127 3.97 4.76 5707 1088 3.57 4.29 5310 1049 3.08 3.69 4911 1009 2.62 3.14 4463 970 2.25 2.70 3949 930 1.87 2.24  
1.4 5545 1128 3.66 4.39 5354 1089 3.29 3.95 4896 1049 2.82 3.38 4458 1010 2.33 2.80 4038 970 1.96 2.36 3152 931 1.53 1.83  
1.6 5209 1130 3.38 4.06 4941 1090 3.04 3.65 4391 1050 2.51 3.02 3924 1011 2.07 2.48 3158 971 1.64 1.97  
1.8 4638 1131 2.96 3.56 4314 1091 2.66 3.19 3681 1052 2.14 2.57  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1 turn  
2 turns  
3 turns  
4 turns  
5 turns  
6 turns  
7.5 HP motor  
5 HP motor  
15-Ton High Static Drive, Gas Heat, Bottom Connection  
1VP62 x BK90  
8000  
7500  
1 Turn  
2 Turns  
3 Turns  
7000  
6500  
6000  
5500  
5000  
4500  
4000  
3500  
3000  
4 Turns  
5 Turns  
6 Turns  
0.0  
0.2  
0.4  
0.6  
0.8  
1.0  
1.2  
1.4  
1.6  
1.8  
2.0  
External Static ("WC)  
Unitary Products Group  
29  
 
262292-YTG-B-0107  
TABLE 15: WR240 BLOWER PERFORMANCE - 20 TON STANDARD DRIVE (COOLING ONLY) DOWNFLOW  
Blower Performance (Downflow Discharge)  
ESP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP  
0.4  
-
-
-
-
9557 1071 7.78 9.49 9313 1036 7.22 8.81 8842 1002 6.35 7.75 8481 968 5.68 6.93 8267 932 5.22 6.38  
0.6 9720 1107 8.33 10.16 9159 1073 7.58 9.25 8901 1038 6.79 8.29 8426 1003 6.02 7.34 8048 969 5.34 6.51 7805 934 4.83 5.90  
0.8 9345 1108 8.04 9.81 8775 1074 7.26 8.86 8503 1039 6.50 7.94 7980 1005 5.64 6.88 7621 970 5.03 6.14 7340 935 4.39 5.35  
1.0 8975 1109 7.62 9.29 8390 1076 6.82 8.32 8089 1040 6.10 7.45 7576 1006 5.33 6.51 7195 971 4.81 5.87 6858 936 4.21 5.13  
1.2 8590 1110 7.32 8.93 7977 1077 6.29 7.67 7643 1041 5.72 6.97 7123 1007 5.00 6.10 6739 972 4.46 5.44 6288 937 3.79 4.62  
1.4 8197 1112 6.75 8.24 7571 1078 5.98 7.29 7218 1043 5.43 6.62 6638 1008 4.54 5.54  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1.6 7795 1113 6.40 7.81 7086 1079 5.71 6.97 6729 1044 4.95 6.04  
-
-
-
-
-
-
-
-
1.8 7313 1115 6.27 7.65  
1 turn  
-
-
-
-
-
-
-
-
2 turns  
3 turns  
4 turns  
5 turns  
6 turns  
10 HP motor  
7.5 HP motor  
20-Ton Standard Drive, Cooling Only, Bottom Connection  
VP68 x BK100  
11000  
10000  
9000  
8000  
7000  
6000  
1 Turn  
2 Turns  
3 Turns  
4 Turns  
5 Turns  
6 Turns  
5000  
0.2  
0.4  
0.6  
0.8  
1.0  
1.2  
1.4  
1.6  
1.8  
2.0  
External Static ("WC)  
30  
Unitary Products Group  
 
262292-YTG-B-0107  
TABLE 16: WR240 BLOWER PERFORMANCE - 20 TON STANDARD DRIVE (GAS HEAT) DOWNFLOW  
Blower Performance (Downflow Discharge)  
ESP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP  
0.4 9892 1106 8.30 10.13 9366 1071 7.31 8.92 9127 1036 6.78 8.28 8665 1002 5.97 7.28 8311 968 5.34 6.52 8102 932 4.91 5.99  
0.6 9526 1107 7.83 9.55 8976 1073 7.12 8.69 8723 1038 6.38 7.79 8257 1003 5.65 6.90 7887 969 5.01 6.12 7649 934 4.54 5.55  
0.8 9158 1108 7.56 9.23 8600 1074 6.83 8.33 8333 1039 6.11 7.46 7820 1005 5.30 6.47 7469 970 4.73 5.77 7193 935 4.12 5.03  
1.0 8796 1109 7.16 8.74 8222 1076 6.41 7.82 7927 1040 5.73 7.00 7424 1006 5.01 6.12 7051 971 4.52 5.51 6721 936 3.95 4.83  
1.2 8418 1110 6.88 8.40 7817 1077 5.91 7.21 7490 1041 5.37 6.56 6981 1007 4.70 5.74 6604 972 4.19 5.12 6162 937 3.56 4.35  
1.4 8033 1112 6.35 7.75 7420 1078 5.62 6.86 7074 1043 5.10 6.22 6505 1008 4.26 5.20  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1.6 7639 1113 6.01 7.34 6944 1079 5.37 6.55 6594 1044 4.65 5.68  
-
-
-
-
-
-
-
-
1.8 7167 1115 5.89 7.19  
1 turn  
-
-
-
-
-
-
-
-
2 turns  
3 turns  
4 turns  
5 turns  
6 turns  
10 HP motor  
7.5 HP motor  
20-Ton Standard Drive, Gas Heat, Bottom Connection  
VP68 x BK100  
11000  
10000  
9000  
8000  
7000  
6000  
1 Turn  
2 Turns  
3 Turns  
4 Turns  
5 Turns  
6 Turns  
5000  
0.2  
0.4  
0.6  
0.8  
1.0  
1.2  
1.4  
1.6  
1.8  
2.0  
External Static ("WC)  
Unitary Products Group  
31  
 
262292-YTG-B-0107  
TABLE 17: WR240 BLOWER PERFORMANCE - 20 TON HIGH STATIC DRIVE (COOLING ONLY) DOWNFLOW  
Blower Performance (Downflow Discharge)  
ESP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP  
0.4 11465 1201 11.98 14.62 10938 1167 10.57 12.90 10528 1131 9.67 11.80 9886 1096 8.54 10.43 9525 1063 7.55 9.21 9054 1027 7.05 8.60  
0.6 11056 1202 11.46 13.98 10545 1168 10.23 12.48 10137 1133 9.20 11.23 9488 1097 8.17 9.98 9092 1064 7.32 8.93 8633 1028 6.45 7.87  
0.8 10697 1203 10.97 13.39 10169 1169 9.78 11.93 9769 1134 8.68 10.59 9109 1099 7.70 9.39 8729 1065 7.28 8.88 8237 1029 6.18 7.54  
1.0 10354 1204 10.68 13.03 9808 1170 9.42 11.50 9370 1135 8.50 10.37 8721 1101 7.38 9.01 8314 1066 6.65 8.11 7835 1030 5.82 7.11  
1.2 9993 1205 10.12 12.35 9450 1171 8.94 10.91 9000 1136 7.94 9.69 8355 1102 6.98 8.52 7899 1067 6.03 7.36 7412 1031 5.53 6.75  
1.4 9637 1207 9.61 11.73 9050 1172 8.48 10.35 8624 1137 7.39 9.02 7990 1103 6.64 8.10 7500 1068 5.96 7.28 6962 1032 4.79 5.84  
1.6 9229 1208 9.20 11.23 8658 1174 7.94 9.69 8239 1138 7.24 8.84 7591 1104 6.31 7.70 7009 1069 5.58 6.81  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1.8 8833 1209 9.02 11.01 8287 1175 7.83 9.56 7852 1140 6.67 8.14 7135 1105 5.91 7.21  
-
-
-
-
-
-
-
-
-
-
-
-
2.0 8446 1210 8.27 10.09 7916 1176 7.41 9.04 7356 1141 6.48 7.91  
-
-
-
-
-
-
-
-
2.2 7996 1212 7.90 9.64  
1 turn  
-
-
-
-
-
-
-
-
2 turns  
3 turns  
4 turns  
5 turns  
6 turns  
15 HP motor  
10 HP motor  
7.5 HP motor  
20-Ton High Static Drive, Cooling Only, Bottom Connection  
VP71 x BK100  
12000  
1 Turn  
2 Turns  
11000  
3 Turns  
4 Turns  
10000  
5 Turns  
6 Turns  
9000  
8000  
7000  
6000  
0.2  
0.4  
0.6  
0.8  
1.0  
1.2  
1.4  
1.6  
1.8  
2.0  
2.2  
External Static ("WC)  
32  
Unitary Products Group  
 
262292-YTG-B-0107  
TABLE 18: WR240 BLOWER PERFORMANCE - 20 TON HIGH STATIC DRIVE (GAS HEAT) DOWNFLOW  
Blower Performance (Downflow Discharge)  
ESP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP  
0.4 11236 1201 11.26 13.74 10719 1167 9.94 12.13 10317 1131 9.09 11.09 9688 1096 8.03 9.80 9335 1063 7.10 8.66 8873 1027 6.62 8.08  
0.6 10835 1202 10.77 13.14 10334 1168 9.62 11.73 9934 1133 8.65 10.56 9298 1097 7.68 9.38 8910 1064 6.88 8.39 8460 1028 6.06 7.40  
0.8 10483 1203 10.31 12.58 9966 1169 9.19 11.22 9574 1134 8.16 9.96 8927 1099 7.23 8.83 8554 1065 6.84 8.35 8072 1029 5.81 7.09  
1.0 10147 1204 10.04 12.25 9612 1170 8.86 10.81 9183 1135 7.99 9.75 8547 1101 6.94 8.47 8148 1066 6.25 7.62 7678 1030 5.48 6.68  
1.2 9793 1205 9.52 11.61 9261 1171 8.40 10.25 8820 1136 7.46 9.11 8188 1102 6.56 8.01 7741 1067 5.67 6.92 7264 1031 5.20 6.35  
1.4 9444 1207 9.03 11.02 8869 1172 7.97 9.73 8452 1137 6.95 8.48 7830 1103 6.24 7.61 7350 1068 5.61 6.84 6823 1032 4.50 5.49  
1.6 9044 1208 8.65 10.55 8485 1174 7.47 9.11 8074 1138 6.81 8.31 7439 1104 5.93 7.24 6869 1069 5.24 6.40  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1.8 8656 1209 8.48 10.35 8121 1175 7.36 8.99 7695 1140 6.27 7.65 6992 1105 5.55 6.78  
-
-
-
-
-
-
-
-
-
-
-
-
2.0 8277 1210 7.77 9.49 7758 1176 6.97 8.50 7209 1141 6.09 7.44  
-
-
-
-
-
-
-
-
2.2 7836 1212 7.43 9.07  
1 turn  
-
-
-
-
-
-
-
-
2 turns  
3 turns  
4 turns  
5 turns  
6 turns  
15 HP motor  
10 HP motor  
7.5 HP motor  
20-Ton High Static Drive, Gas Heat, Bottom Connection  
VP71 x BK100  
12000  
1 Turn  
11000  
2 Turns  
3 Turns  
10000  
4 Turns  
5 Turns  
9000  
8000  
7000  
6000  
6 Turns  
0.2  
0.4  
0.6  
0.8  
1.0  
1.2  
1.4  
1.6  
1.8  
2.0  
2.2  
External Static ("WC)  
Unitary Products Group  
33  
 
262292-YTG-B-0107  
TABLE 19: WR300 BLOWER PERFORMANCE - 25 TON STANDARD DRIVE (COOLING ONLY) DOWNFLOW  
Blower Performance (Downflow Discharge)  
ESP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP  
0.4 10636 1106 9.46 11.55 10163 1072 8.55 10.44 9813 1036 7.76 9.47 9394 999 6.98 8.52 8936 963 6.14 7.49 8388 927 5.45 6.65  
0.6 10312 1106 9.06 11.06 9824 1072 8.17 9.97 9463 1036 7.37 8.99 9006 1000 6.60 8.05 8553 963 5.83 7.11 7987 927 5.10 6.23  
0.8 9975 1107 8.76 10.69 9466 1073 7.75 9.46 9087 1036 6.99 8.53 8626 1001 6.31 7.69 8159 964 5.51 6.73 7553 928 4.84 5.91  
1.0 9629 1108 8.34 10.18 9108 1073 7.41 9.04 8706 1037 6.64 8.11 8218 1001 5.91 7.22 7717 965 5.16 6.29 7118 929 4.49 5.48  
1.2 9262 1109 7.97 9.73 8730 1074 7.11 8.67 8319 1038 6.33 7.72 7783 1002 5.55 6.77 7265 966 4.83 5.89 6625 929 4.21 5.14  
1.4 8897 1110 7.56 9.22 8326 1075 6.72 8.21 7879 1039 5.85 7.14 7351 1002 5.18 6.32 6804 967 4.52 5.51 6087 930 3.82 4.66  
1.6 8488 1111 7.15 8.73 7919 1076 6.28 7.67 7414 1039 5.46 6.66 6800 1003 4.79 5.84 6205 968 4.12 5.03 5425 931 3.51 4.28  
1.8 8068 1112 6.74 8.23 7472 1076 5.92 7.22 6919 1040 5.09 6.22 6187 1004 4.29 5.24 5478 969 3.74 4.56 4665 931 3.02 3.69  
2.0 7654 1113 6.38 7.79 6906 1077 5.37 6.56 6327 1041 4.67 5.70 5539 1005 3.88 4.73 4750 969 3.18 3.88  
2.2 7135 1114 5.92 7.22 6346 1078 4.91 5.99 5735 1042 4.25 5.19  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1 turn  
2 turns  
3 turns  
4 turns  
5 turns  
6 turns  
15 HP motor  
10 HP motor  
7.5 HP motor  
25-Ton Standard Drive, Cooling Only, Bottom Duct Connection  
1VP65 & B5V94  
12000  
11000  
1 Turn  
2 Turns  
3 Turns  
10000  
9000  
8000  
7000  
6000  
5000  
4000  
4 Turns  
5 Turns  
6 Turns  
0.2  
0.4  
0.6  
0.8  
1.0  
1.2  
1.4  
1.6  
1.8  
2.0  
2.2  
2.4  
External Static ("WC)  
34  
Unitary Products Group  
 
262292-YTG-B-0107  
TABLE 20: WR300 BLOWER PERFORMANCE - 25 TON STANDARD DRIVE (GAS HEAT) DOWNFLOW  
Blower Performance (Downflow Discharge)  
ESP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP  
0.4 10423 1106 8.89 10.85 9960 1072 8.04 9.81 9617 1036 7.29 8.90 9206 999 6.56 8.01 8757 963 5.77 7.04 8220 927 5.12 6.25  
0.6 10106 1106 8.52 10.40 9628 1072 7.68 9.38 9274 1036 6.92 8.45 8826 1000 6.20 7.57 8382 963 5.48 6.68 7827 927 4.80 5.85  
0.8 9776 1107 8.24 10.05 9277 1073 7.28 8.89 8905 1036 6.57 8.01 8453 1001 5.93 7.23 7996 964 5.18 6.33 7402 928 4.55 5.55  
1.0 9436 1108 7.84 9.57 8926 1073 6.97 8.50 8532 1037 6.24 7.62 8054 1001 5.56 6.78 7563 965 4.85 5.91 6976 929 4.22 5.15  
1.2 9077 1109 7.49 9.14 8555 1074 6.68 8.15 8153 1038 5.95 7.26 7627 1002 5.21 6.36 7120 966 4.54 5.53 6493 929 3.96 4.83  
1.4 8719 1110 7.10 8.67 8159 1075 6.32 7.71 7721 1039 5.50 6.71 7204 1002 4.87 5.94 6668 967 4.25 5.18 5965 930 3.59 4.38  
1.6 8318 1111 6.72 8.20 7761 1076 5.91 7.21 7266 1039 5.13 6.26 6664 1003 4.50 5.49 6081 968 3.87 4.73 5317 931 3.30 4.02  
1.8 7907 1112 6.34 7.74 7323 1076 5.56 6.79 6781 1040 4.79 5.84 6063 1004 4.03 4.92 5368 969 3.52 4.29 4572 931 2.84 3.47  
2.0 7501 1113 6.00 7.32 6768 1077 5.05 6.16 6200 1041 4.39 5.36 5428 1005 3.65 4.45 4655 969 2.99 3.65  
-
-
-
-
-
-
-
-
2.2 6992 1114 5.56 6.79 6219 1078 4.62 5.63 5620 1042 4.00 4.88  
-
-
-
-
-
-
-
-
1 turn  
2 turns  
3 turns  
4 turns  
5 turns  
6 turns  
15 HP motor  
10 HP motor  
7.5 HP motor  
25-Ton Standard Drive, Gas Heat, Bottom Duct Connection  
1VP65 & B5V94  
12000  
11000  
1 Turn  
2 Turns  
3 Turns  
10000  
9000  
8000  
7000  
6000  
5000  
4000  
4 Turns  
5 Turns  
6 Turns  
0.2  
0.4  
0.6  
0.8  
1.0  
1.2  
1.4  
1.6  
1.8  
2.0  
2.2  
2.4  
External Static ("WC)  
Unitary Products Group  
35  
 
262292-YTG-B-0107  
TABLE 21: WR300 BLOWER PERFORMANCE - 25 TON HIGH STATIC DRIVE (COOLING ONLY) DOWNFLOW  
Blower Performance (Downflow Discharge)  
ESP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP  
0.4 11830 1216 12.80 15.62 11374 1181 11.51 14.05 11030 1146 10.55 12.87 10572 1111 9.50 11.59 10220 1075 8.67 10.58 9928 1041 7.91 9.65  
0.6 11546 1217 12.31 15.02 11079 1181 11.12 13.57 10600 1147 10.00 12.20 10231 1112 9.11 11.12 9885 1076 8.28 10.10 9575 1040 7.52 9.18  
0.8 11239 1217 11.87 14.49 10770 1182 10.79 13.17 10232 1147 9.63 11.75 9912 1112 8.87 10.82 9537 1077 7.94 9.69 9207 1042 7.08 8.63  
1.0 10923 1218 11.48 14.01 10388 1183 10.25 12.51 9919 1148 9.28 11.32 9607 1114 8.39 10.24 9171 1078 7.54 9.20 8833 1043 6.72 8.21  
1.2 10618 1219 11.14 13.60 10054 1185 9.82 11.98 9591 1149 8.93 10.90 9201 1114 8.01 9.77 8799 1079 7.18 8.76 8439 1044 6.39 7.80  
1.4 10302 1221 10.66 13.01 9703 1186 9.42 11.50 9228 1150 8.48 10.35 8793 1115 7.55 9.21 8407 1080 6.76 8.25 7996 1044 6.03 7.36  
1.6 9958 1222 10.21 12.45 9346 1186 9.05 11.04 8861 1151 8.12 9.91 8394 1116 7.13 8.69 7992 1081 6.42 7.84 7565 1045 5.66 6.90  
1.8 9605 1223 9.71 11.85 9032 1187 8.61 10.51 8484 1153 7.58 9.25 8008 1117 6.86 8.37 7513 1081 6.01 7.33 7045 1047 5.20 6.35  
2.0 9219 1225 9.25 11.29 8638 1189 8.18 9.98 8092 1154 7.26 8.86 7624 1118 6.37 7.77 6987 1082 5.53 6.75  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
2.2 8796 1226 8.82 10.76 8250 1190 7.78 9.49 7637 1155 6.67 8.14 7134 1119 5.99 7.31  
-
-
-
-
-
-
-
-
-
-
-
-
2.4 8287 1227 8.19 10.00 7791 1191 7.26 8.86  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
2.6 7782 1229 7.98 9.74  
1 turn  
-
-
-
-
2 turns  
3 turns  
4 turns  
5 turns  
6 turns  
15 HP motor  
10 HP motor  
7.5 HP motor  
25-Ton High Static Drive, Cooling Only, Bottom Duct Connection  
1VP71 & 1B5V94  
13000  
12000  
11000  
10000  
9000  
1 Turn  
2 Turns  
3 Turns  
4 Turns  
5 Turns  
6 Turns  
8000  
7000  
6000  
0.2  
0.4  
0.6  
0.8  
1.0  
1.2  
1.4  
1.6  
1.8  
2.0  
2.2  
2.4  
2.6  
External Static ("WC)  
36  
Unitary Products Group  
 
262292-YTG-B-0107  
TABLE 22: WR300 BLOWER PERFORMANCE - 25 TON HIGH STATIC DRIVE (GAS HEAT) DOWNFLOW  
Blower Performance (Downflow Discharge)  
ESP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP  
0.4 11593 1216 12.03 14.68 11147 1181 10.82 13.20 10809 1146 9.91 12.10 10361 1111 8.93 10.90 10016 1075 8.15 9.95 9729 1041 7.43 9.07  
0.6 11315 1217 11.57 14.12 10857 1181 10.45 12.76 10388 1147 9.40 11.47 10026 1112 8.56 10.45 9687 1076 7.78 9.49 9384 1040 7.07 8.63  
0.8 11014 1217 11.16 13.62 10555 1182 10.14 12.38 10027 1147 9.05 11.05 9714 1112 8.34 10.17 9346 1077 7.46 9.11 9023 1042 6.65 8.12  
1.0 10705 1218 10.79 13.17 10180 1183 9.64 11.76 9721 1148 8.72 10.65 9415 1114 7.88 9.62 8988 1078 7.09 8.65 8656 1043 6.32 7.71  
1.2 10406 1219 10.47 12.78 9853 1185 9.23 11.26 9399 1149 8.39 10.24 9017 1114 7.53 9.19 8623 1079 6.75 8.23 8270 1044 6.01 7.33  
1.4 10096 1221 10.02 12.23 9509 1186 8.85 10.81 9043 1150 7.97 9.73 8617 1115 7.10 8.66 8239 1080 6.36 7.76 7836 1044 5.67 6.92  
1.6 9759 1222 9.59 11.71 9159 1186 8.51 10.38 8684 1151 7.63 9.31 8226 1116 6.70 8.17 7832 1081 6.04 7.37 7414 1045 5.32 6.49  
1.8 9413 1223 9.13 11.14 8851 1187 8.09 9.88 8314 1153 7.13 8.70 7848 1117 6.45 7.87 7363 1081 5.65 6.89 6904 1047 4.89 5.97  
2.0 9035 1225 8.70 10.61 8465 1189 7.69 9.38 7930 1154 6.82 8.33 7472 1118 5.98 7.30 6847 1082 5.20 6.34  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
2.2 8620 1226 8.29 10.12 8085 1190 7.31 8.92 7484 1155 6.27 7.65 6991 1119 5.63 6.87  
-
-
-
-
-
-
-
-
-
-
-
-
2.4 8121 1227 7.70 9.40 7635 1191 6.82 8.33  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
2.6 7626 1229 7.50 9.15  
1 turn  
-
-
-
-
2 turns  
3 turns  
4 turns  
5 turns  
6 turns  
15 HP motor  
10 HP motor  
7.5 HP motor  
25-Ton High Static Drive, Gas Heat, Bottom Duct Connection  
1VP71 & 1B5V94  
13000  
12000  
1 Turn  
2 Turns  
3 Turns  
11000  
10000  
9000  
8000  
7000  
6000  
4 Turns  
5 Turns  
6 Turns  
0.2  
0.4  
0.6  
0.8  
1.0  
1.2  
1.4  
1.6  
1.8  
2.0  
2.2  
2.4  
2.6  
External Static ("WC)  
Unitary Products Group  
37  
 
262292-YTG-B-0107  
TABLE 23: BLOWER MOTOR AND DRIVE DATA  
BELT  
(NOTCHED)  
1
ADJUSTABLE MOTOR PULLEY  
FIXED BLOWER PULLEY  
OUTSIDE PITCH  
MOTOR  
BLOWER  
RANGE  
(RPM)  
MODEL  
SIZE  
DRIVE  
OUTSIDE PITCH  
PITCH  
LENGTH QTY.  
(IN.)  
EFF.  
(%)  
DESIG-  
NATION  
BORE DESIG-  
(IN.) NATION  
BORE DESIG-  
(IN.) NATION  
HP FRAME  
DIA.  
(IN.)  
DIA.  
(IN.)  
DIA.  
(IN.)  
DIA.  
(IN.)  
Standard 790/970  
High  
Speed 940/1130 7.5 213 T  
Access  
5
184 T 89.5  
1-1/8  
1-3/8  
BK105  
BK90  
10.25  
9.9  
2
15 TON  
1VP62  
5.95  
1
BX81  
BX81  
82.8  
82.8  
1
4.9-5.9  
91  
8.75  
8.4  
Low  
Speed  
Drive  
7.5 213 T  
10 215 T  
91  
91  
91  
910/1100  
1VP68  
1VP71  
1VP65  
1VP71  
6.55  
7.1  
6.0  
7.1  
5.5-6.5  
5.4-6.6  
4.8-6.0  
5.5-6.5  
1-3/8  
20 TON Standard  
BK100  
9.75  
9.4  
9.5  
1-3/16  
1
High  
Speed 1000/1180 15 254 T  
Access  
1-5/8  
1-3/8  
Low  
Speed  
Drive  
7.5 213 T  
91  
91  
1-3/16  
1-7/16  
900/1100  
BX78  
BX81  
79.8  
82.8  
25 TON Standard  
1B5V94  
9.7  
1
High  
15 254 T  
1-5/8  
Speed 1000/1200  
Access  
1. All motors have a nominal speed of 1800 RPM, a 1.15 service factor and a solid base. They can operate to the limit of their service factor because they are  
located in the moving air, upstream of any heating device.  
2. Do NOT close this pully below 1 turn open.  
1
TABLE 24: STATIC RESISTANCES  
RESISTANCE, IWG  
CFM  
DESCRIPTION  
15 TON  
6000  
0.1  
20 TON  
8000  
0.1  
25 TON  
8000  
0.1  
4500  
0.1  
0.3  
0.3  
0.4  
0.4  
0.1  
0.1  
7500  
0.1  
0.4  
0.5  
0.5  
0.5  
0.1  
0.3  
6000  
0.1  
0.4  
0.4  
0.5  
0.5  
0.1  
0.2  
9000  
0.2  
0.5  
0.5  
0.6  
0.6  
0.2  
0.5  
7500  
0.1  
0.4  
0.5  
0.5  
0.5  
0.1  
0.3  
9000  
WET INDOOR COIL  
0.2  
0.5  
0.5  
0.6  
0.6  
0.2  
0.5  
18 KW  
36 KW  
54 KW  
72 KW  
0.4  
0.4  
0.4  
0.4  
0.5  
0.5  
ELECTRIC HEAT OPTIONS  
0.5  
0.5  
0.5  
0.5  
0.5  
0.5  
ECONOMIZER OPTION  
HORIZONTAL DUCT CONNECTIONS2  
0.1  
0.1  
0.1  
0.2  
0.3  
0.3  
1. Deduct these resistance values from the available external static pressures shown in the respective Blower Performance Table.  
2. Since the resistance to air flow will be less for horizontal duct connections than for bottom duct connections, add these pressures to the  
ESP values on the respective unit’s blower performance table.  
TABLE 25: POWER EXHAUST PERFORMANCE  
STATIC RESISTANCE OF RETURN DUCTWORK, IWG  
MOTOR  
SPEED1  
0.2  
0.3  
0.4  
0.5  
0.6  
CFM  
kW  
CFM  
kW  
CFM  
kW  
CFM  
kW  
CFM  
kW  
HIGH2  
MEDIUM  
LOW  
5250  
4900  
4400  
0.83  
0.77  
0.72  
4500  
3900  
3700  
0.85  
0.79  
0.74  
4200  
3500  
3000  
0.88  
0.82  
0.78  
3750  
2900  
-
0.93  
0.85  
-
3000  
0.99  
-
-
-
-
1. Power exhaust motor is a 3/4 HP, PSC type with sleeve bearings, a 48 frame and inherent protection.  
2. The factory setting.  
38  
Unitary Products Group  
     
262292-YTG-B-0107  
TABLE 26: WR ELECTRICAL DATA - STANDARD DRIVE MOTOR W/O POWERED CONVENIENCE OUTLET  
COMPRESSORS  
ID  
HEATER OPTION  
MIN.  
CIRCUIT  
AMPACITY  
(AMPS)  
76.5  
MAX. FUSE/  
BRKR  
SIZE  
(AMPS)  
90  
OD FAN  
MOTORS  
FLA EACH  
CONV  
OUTLET  
AMPS  
1
MODEL  
(TONNAGE)  
BLOWER  
MOTOR  
FLA  
VOLTAGE  
RLA  
LRA  
MODEL KW STAGES AMPS  
EACH  
EACH  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
-
-
-
13.5  
27  
40.6  
54.1  
-
18.0  
36.0  
54.0  
72.0  
-
18.0  
36.0  
54.0  
72.0  
-
18.0  
36.0  
54.0  
72.0  
-
13.5  
27  
40.6  
54.1  
-
18.0  
36.0  
54.0  
72.0  
-
18.0  
36.0  
54.0  
72.0  
-
18.0  
36.0  
54.0  
72.0  
-
13.5  
27  
40.6  
54.1  
-
18.0  
36.0  
54.0  
72.0  
-
18.0  
36.0  
54.0  
72.0  
-
1
2
2
2
-
1
2
2
2
-
1
2
2
2
-
1
2
2
2
-
1
2
2
2
-
1
2
2
2
-
1
2
2
2
-
1
2
2
2
-
1
2
2
2
-
1
2
2
2
-
1
2
2
2
-
1
2
2
2
37.5  
74.9  
112.7  
150.2  
-
43.3  
86.6  
129.9  
173.2  
-
21.7  
43.3  
65.0  
86.6  
-
17.3  
34.6  
52.0  
69.3  
-
37.5  
74.9  
112.7  
150.2  
-
43.3  
86.6  
129.9  
173.2  
-
21.7  
43.3  
65.0  
86.6  
-
17.3  
34.6  
52.0  
69.3  
-
37.5  
74.9  
112.7  
150.2  
-
43.3  
86.6  
129.9  
173.2  
-
21.7  
43.3  
65.0  
86.6  
-
17.3  
34.6  
52.0  
69.3  
76.5  
90  
208  
22.4  
22.4  
10.9  
8.3  
164  
164  
100  
78  
2.1  
2.1  
1.2  
0.9  
2.4  
2.4  
0.9  
0.6  
2.4  
2.4  
0.9  
0.6  
17.7  
16.4  
8.2  
0.0  
0.0  
0.0  
0.0  
0.0  
0.0  
0.0  
0.0  
0.0  
0.0  
0.0  
0.0  
115.8  
163.0  
172.3  
75.2  
125  
175  
200  
90  
75.2  
90  
230  
460  
575  
208  
230  
460  
575  
208  
230  
460  
575  
128.8  
150.4  
193.7  
37.5  
37.5  
64.4  
75.2  
96.9  
28.9  
29.9  
150  
175  
225  
45  
45  
70  
90  
110  
35  
35  
60  
180  
(15)  
6.6  
51.6  
60.2  
77.5  
70  
90  
101.5  
101.5  
123.9  
171.1  
180.4  
101.5  
101.5  
138.5  
160.2  
203.5  
50.6  
50.6  
69.3  
80.1  
101.7  
39.9  
125  
125  
125  
175  
200  
125  
125  
150  
175  
225  
60  
60  
70  
90  
110  
50  
30.1  
30.1  
15.5  
12.1  
42.3  
42.3  
17.6  
14.5  
225  
225  
114  
80  
24.2  
24.2  
12.1  
10.3  
38.6  
38.6  
19.3  
16.2  
240  
(20)  
39.9  
56.2  
64.8  
82.2  
50  
60  
70  
90  
143.4  
143.4  
143.4  
189.1  
198.4  
143.4  
143.4  
156.5  
178.2  
221.5  
62.9  
62.9  
78.3  
89.1  
110.7  
51.7  
175  
175  
175  
200  
225  
175  
175  
175  
200  
250  
80  
80  
80  
100  
125  
60  
245  
245  
125  
100  
300  
(25)  
18.0  
36.0  
54.0  
72.0  
51.7  
63.6  
72.2  
89.5  
60  
70  
80  
100  
NOTE 1: HACR Type per NEC.  
VOLTAGE LIMITATIONS  
POWER SUPPLY  
ELECTRIC HEAT CORRECTION FACTORS  
VOLTAGE  
NOMINAL VOLTAGE  
VOLTAGE  
208  
kW CAP. MULTIPLIER  
MIN.  
187  
414  
518  
MAX.  
208  
240  
480  
600  
1.00  
0.92  
0.92  
0.92  
VOLTAGE  
LIMITATIONS1  
208/230-3-60  
460-3-60  
575-3-60  
253  
506  
630  
230  
460  
575  
1. Utilization Range “A” in accordance with ARI Standard 110.  
Unitary Products Group  
39  
 
262292-YTG-B-0107  
TABLE 27: WR ELECTRICAL DATA - HIGH STATIC DRIVE MOTOR W/O POWERED CONVENIENCE OUTLET  
COMPRESSORS  
ID  
HEATER OPTION  
MIN.  
CIRCUIT  
AMPACITY  
(AMPS)  
78.8  
MAX. FUSE/  
BRKR  
OD FAN  
MOTORS  
FLA EACH  
CONV  
OUTLET  
AMPS  
1
MODEL  
(TONNAGE)  
BLOWER  
MOTOR  
FLA  
VOLTAGE  
RLA  
LRA  
SIZE  
(AMPS)  
100  
100  
125  
175  
200  
100  
100  
150  
175  
225  
50  
50  
70  
90  
110  
35  
35  
60  
70  
90  
150  
150  
150  
200  
225  
150  
150  
175  
200  
250  
70  
70  
80  
100  
125  
60  
MODEL KW STAGES AMPS  
EACH  
EACH  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
-
-
-
13.5  
27  
40.6  
54.1  
-
1
2
2
2
-
37.5  
74.9  
112.7  
150.2  
-
43.3  
86.6  
129.9  
173.2  
-
21.7  
43.3  
65.0  
86.6  
-
17.3  
34.6  
52.0  
69.3  
-
37.5  
74.9  
112.7  
150.2  
-
43.3  
86.6  
129.9  
173.2  
-
21.7  
43.3  
65.0  
86.6  
-
17.3  
34.6  
52.0  
69.3  
-
37.5  
74.9  
112.7  
150.2  
-
43.3  
86.6  
129.9  
173.2  
-
21.7  
43.3  
65.0  
86.6  
-
17.3  
34.6  
52.0  
69.3  
78.8  
208  
22.4  
22.4  
10.9  
8.3  
164  
164  
100  
78  
2.1  
2.1  
1.2  
0.9  
2.4  
2.4  
0.9  
0.6  
2.4  
2.4  
0.9  
0.6  
20.0  
20.0  
10.0  
7.5  
0.0  
0.0  
0.0  
0.0  
0.0  
0.0  
0.0  
0.0  
0.0  
0.0  
0.0  
0.0  
118.7  
165.9  
175.2  
78.8  
18.0  
36.0  
54.0  
72.0  
-
1
2
2
2
-
79.1  
230  
460  
575  
208  
230  
460  
575  
208  
230  
460  
575  
133.3  
154.9  
198.2  
39.3  
39.6  
66.6  
77.5  
99.1  
29.8  
31.0  
180  
(15)  
18.0  
36.0  
54.0  
72.0  
-
1
2
2
2
-
18.0  
36.0  
54.0  
72.0  
-
1
2
2
2
-
52.7  
61.3  
78.7  
118.1  
118.1  
141.9  
189.1  
198.4  
118.1  
118.1  
156.5  
178.2  
221.5  
58.7  
58.7  
78.3  
89.1  
110.7  
46.9  
13.5  
27  
40.6  
54.1  
-
1
2
2
2
-
30.1  
30.1  
15.5  
12.1  
42.3  
42.3  
17.6  
14.5  
225  
225  
114  
80  
38.6  
38.6  
19.3  
16.2  
38.6  
38.6  
19.3  
16.2  
18.0  
36.0  
54.0  
72.0  
-
1
2
2
2
-
240  
(20)  
18.0  
36.0  
54.0  
72.0  
-
1
2
2
2
-
18.0  
36.0  
54.0  
72.0  
-
1
2
2
2
-
46.9  
63.6  
72.2  
89.5  
60  
70  
80  
100  
175  
175  
175  
200  
225  
175  
175  
175  
200  
250  
80  
80  
80  
100  
125  
60  
143.4  
143.4  
143.4  
189.1  
198.4  
143.4  
143.4  
156.5  
178.2  
221.5  
62.9  
62.9  
78.3  
89.1  
110.7  
51.7  
13.5  
27  
40.6  
54.1  
-
1
2
2
2
-
245  
245  
125  
100  
18.0  
36.0  
54.0  
72.0  
-
1
2
2
2
-
300  
(25)  
18.0  
36.0  
54.0  
72.0  
-
1
2
2
2
-
18.0  
36.0  
54.0  
72.0  
1
2
2
2
51.7  
63.6  
72.2  
89.5  
60  
70  
80  
100  
NOTE 1: HACR Type per NEC.  
VOLTAGE LIMITATIONS  
POWER SUPPLY  
ELECTRIC HEAT CORRECTION FACTORS  
VOLTAGE  
NOMINAL VOLTAGE  
VOLTAGE  
208  
kW CAP. MULTIPLIER  
MIN.  
187  
414  
518  
MAX.  
208  
240  
480  
600  
1.00  
0.92  
0.92  
0.92  
VOLTAGE  
LIMITATIONS1  
208/230-3-60  
460-3-60  
575-3-60  
253  
506  
630  
230  
460  
575  
1. Utilization Range “A” in accordance with ARI Standard 110.  
40  
Unitary Products Group  
 
262292-YTG-B-0107  
TABLE 28: WR ELECTRICAL DATA - LOW AIRFLOW DRIVE MOTOR W/O POWERED CONVENIENCE OUTLET  
COMPRESSORS  
ID  
HEATER OPTION  
MIN.  
MAX. FUSE/  
BRKR  
SIZE  
(AMPS)  
OD FAN  
MOTORS  
FLA EACH  
CONV  
OUTLET  
AMPS  
1
MODEL  
(TONNAGE)  
BLOWER  
MOTOR  
FLA  
CIRCUIT  
AMPACITY  
(AMPS)  
VOLTAGE  
RLA  
LRA  
MODEL KW STAGES AMPS  
EACH  
EACH  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
0.0  
-
-
97.3  
97.3  
118.7  
165.9  
175.2  
97.3  
125  
125  
125  
175  
200  
125  
125  
150  
175  
225  
60  
60  
70  
90  
110  
45  
13.5  
27.0  
40.6  
54.1  
0.0  
18.0  
36.0  
54.0  
72.0  
0.0  
18.0  
36.0  
54.0  
72.0  
0.0  
18.0  
36.0  
54.0  
72.0  
0.0  
13.5  
27.0  
40.6  
54.1  
0.0  
18.0  
36.0  
54.0  
72.0  
0.0  
18.0  
36.0  
54.0  
72.0  
0.0  
18.0  
36.0  
54.0  
72.0  
1
2
2
2
-
1
2
2
2
-
1
2
2
2
-
1
2
2
2
-
1
2
2
2
-
1
2
2
2
-
1
2
2
2
-
1
2
2
2
37.5  
75.1  
112.7  
150.2  
-
43.3  
86.6  
129.9  
173.2  
-
21.7  
43.3  
65.0  
86.6  
-
17.3  
34.6  
52.0  
69.3  
-
37.5  
75.1  
112.6  
150.1  
-
43.3  
86.6  
129.9  
173.2  
-
21.7  
43.3  
65.0  
86.6  
-
17.3  
34.6  
52.0  
69.3  
208  
30.1  
30.1  
15.5  
12.1  
42.3  
42.3  
17.6  
14.5  
225  
225  
114  
80  
2.4  
2.4  
0.9  
0.6  
2.4  
2.4  
0.9  
0.6  
20.0  
20.0  
10.0  
7.5  
0.0  
0.0  
0.0  
0.0  
0.0  
0.0  
0.0  
0.0  
97.3  
230  
460  
575  
208  
230  
460  
575  
133.3  
154.9  
198.2  
48.5  
48.5  
66.6  
77.5  
99.1  
37.1  
37.1  
240  
(20)  
45  
60  
70  
90  
52.7  
61.3  
78.7  
124.8  
124.8  
124.8  
165.9  
175.2  
124.8  
124.8  
133.3  
154.9  
198.2  
53.2  
53.2  
66.6  
77.5  
99.1  
42.5  
42.5  
52.7  
61.3  
150  
150  
150  
175  
200  
150  
150  
150  
175  
225  
70  
70  
70  
90  
110  
50  
245  
245  
125  
100  
20.0  
20.0  
10.0  
7.5  
300  
(25)  
50  
60  
70  
90  
78.7  
NOTE 1: HACR Type per NEC.  
VOLTAGE LIMITATIONS  
POWER SUPPLY  
ELECTRIC HEAT CORRECTION FACTORS  
VOLTAGE  
NOMINAL VOLTAGE  
VOLTAGE  
208  
kW CAP. MULTIPLIER  
MIN.  
187  
414  
518  
MAX.  
208  
240  
480  
600  
1.00  
0.92  
0.92  
0.92  
VOLTAGE  
LIMITATIONS1  
208/230-3-60  
460-3-60  
575-3-60  
253  
506  
630  
230  
460  
575  
1. Utilization Range “A” in accordance with ARI Standard 110.  
Unitary Products Group  
41  
 
262292-YTG-B-0107  
TABLE 29: WR ELECTRICAL DATA - STANDARD DRIVE MOTOR WITH POWERED CONVENIENCE OUTLET  
COMPRESSORS  
ID  
HEATER OPTION  
MIN.  
CIRCUIT  
AMPACITY  
(AMPS)  
86.5  
MAX. FUSE/  
BRKR  
OD FAN  
MOTORS  
FLA EACH  
CONV  
OUTLET  
AMPS  
1
MODEL  
(TONNAGE)  
BLOWER  
MOTOR  
FLA  
VOLTAGE  
RLA  
LRA  
SIZE  
(AMPS)  
100  
100  
150  
200  
200  
100  
100  
150  
175  
225  
50  
50  
80  
90  
110  
40  
40  
60  
70  
90  
125  
125  
150  
200  
200  
125  
125  
175  
175  
225  
70  
70  
80  
90  
110  
50  
MODEL KW STAGES AMPS  
EACH  
EACH  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
-
-
-
13.5  
27  
40.6  
54.1  
-
1
2
2
2
-
37.5  
74.9  
112.7  
150.2  
-
43.3  
86.6  
129.9  
173.2  
-
21.7  
43.3  
65.0  
86.6  
-
17.3  
34.6  
52.0  
69.3  
-
37.5  
74.9  
112.7  
150.2  
-
43.3  
86.6  
129.9  
173.2  
-
21.7  
43.3  
65.0  
86.6  
-
17.3  
34.6  
52.0  
69.3  
-
37.5  
74.9  
112.7  
150.2  
-
43.3  
86.6  
129.9  
173.2  
-
21.7  
43.3  
65.0  
86.6  
-
17.3  
34.6  
52.0  
69.3  
86.5  
208  
22.4  
22.4  
10.9  
8.3  
164  
164  
100  
78  
2.1  
2.1  
1.2  
0.9  
2.4  
2.4  
0.9  
0.6  
2.4  
2.4  
0.9  
0.6  
17.7  
16.4  
8.2  
10.0  
10.0  
5.0  
128.3  
175.5  
184.8  
85.2  
18.0  
36.0  
54.0  
72.0  
-
1
2
2
2
-
87.1  
230  
460  
575  
208  
230  
460  
575  
208  
230  
460  
575  
141.3  
162.9  
206.2  
42.5  
43.6  
70.6  
81.5  
103.1  
32.9  
34.9  
56.6  
180  
(15)  
18.0  
36.0  
54.0  
72.0  
-
1
2
2
2
-
18.0  
36.0  
54.0  
72.0  
-
1
2
2
2
-
6.6  
4.0  
65.2  
82.5  
111.5  
111.5  
136.4  
183.6  
192.9  
111.5  
111.5  
151.0  
172.7  
216.0  
55.6  
55.6  
75.5  
86.3  
108.0  
43.9  
13.5  
27  
40.6  
54.1  
-
1
2
2
2
-
30.1  
30.1  
15.5  
12.1  
42.3  
42.3  
17.6  
14.5  
225  
225  
114  
80  
24.2  
24.2  
12.1  
10.3  
38.6  
38.6  
19.3  
16.2  
10.0  
10.0  
5.0  
18.0  
36.0  
54.0  
72.0  
-
1
2
2
2
-
240  
(20)  
18.0  
36.0  
54.0  
72.0  
-
1
2
2
2
-
18.0  
36.0  
54.0  
72.0  
-
1
2
2
2
-
43.9  
61.2  
69.8  
87.2  
50  
70  
70  
90  
4.0  
153.4  
153.4  
154.4  
201.6  
210.9  
153.4  
153.4  
169.0  
190.7  
234.0  
67.9  
67.9  
84.5  
95.3  
117.0  
55.7  
175  
175  
175  
225  
225  
175  
175  
175  
225  
250  
80  
80  
90  
110  
125  
70  
13.5  
27  
40.6  
54.1  
-
1
2
2
2
-
245  
245  
125  
100  
10.0  
10.0  
5.0  
18.0  
36.0  
54.0  
72.0  
-
1
2
2
2
-
300  
(25)  
18.0  
36.0  
54.0  
72.0  
-
1
2
2
2
-
18.0  
36.0  
54.0  
72.0  
1
2
2
2
55.7  
68.6  
77.2  
94.5  
70  
70  
90  
100  
4.0  
NOTE 1: HACR Type per NEC.  
VOLTAGE LIMITATIONS  
POWER SUPPLY  
ELECTRIC HEAT CORRECTION FACTORS  
VOLTAGE  
NOMINAL VOLTAGE  
VOLTAGE  
208  
kW CAP. MULTIPLIER  
MIN.  
187  
414  
518  
MAX.  
208  
240  
480  
600  
1.00  
0.92  
0.92  
0.92  
VOLTAGE  
LIMITATIONS1  
208/230-3-60  
460-3-60  
575-3-60  
253  
506  
630  
230  
460  
575  
1. Utilization Range “A” in accordance with ARI Standard 110.  
42  
Unitary Products Group  
 
262292-YTG-B-0107  
TABLE 30: WR ELECTRICAL DATA - HIGH STATIC DRIVE MOTOR WITH POWERED CONVENIENCE OUTLET  
COMPRESSORS  
ID  
HEATER OPTION  
MIN.  
CIRCUIT  
AMPACITY  
(AMPS)  
88.8  
MAX. FUSE/  
BRKR  
OD FAN  
MOTORS  
FLA EACH  
CONV  
OUTLET  
AMPS  
1
MODEL  
(TONNAGE)  
BLOWER  
MOTOR  
FLA  
VOLTAGE  
RLA  
LRA  
SIZE  
(AMPS)  
110  
110  
150  
200  
200  
110  
110  
150  
175  
225  
50  
50  
80  
90  
110  
40  
40  
60  
70  
90  
150  
150  
175  
225  
225  
150  
150  
175  
225  
250  
80  
80  
90  
110  
125  
60  
MODEL KW STAGES AMPS  
EACH  
EACH  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
-
-
-
13.5  
27  
40.6  
54.1  
-
1
2
2
2
-
37.5  
74.9  
112.7  
150.2  
-
43.3  
86.6  
129.9  
173.2  
-
21.7  
43.3  
65.0  
86.6  
-
17.3  
34.6  
52.0  
69.3  
-
37.5  
74.9  
112.7  
150.2  
-
43.3  
86.6  
129.9  
173.2  
-
21.7  
43.3  
65.0  
86.6  
-
17.3  
34.6  
52.0  
69.3  
-
37.5  
74.9  
112.7  
150.2  
-
43.3  
86.6  
129.9  
173.2  
-
21.7  
43.3  
65.0  
86.6  
-
17.3  
34.6  
52.0  
69.3  
88.8  
208  
22.4  
22.4  
10.9  
8.3  
164  
164  
100  
78  
2.1  
2.1  
1.2  
0.9  
2.4  
2.4  
0.9  
0.6  
2.4  
2/4  
0.9  
0.6  
20.0  
20.0  
10.0  
7.5  
10.0  
10.0  
5.0  
131.2  
178.4  
187.7  
88.8  
18.0  
36.0  
54.0  
72.0  
-
1
2
2
2
-
91.6  
230  
460  
575  
208  
230  
460  
575  
208  
230  
460  
575  
145.8  
167.4  
210.7  
44.3  
45.8  
72.9  
83.7  
105.4  
33.8  
36.0  
57.7  
180  
(15)  
18.0  
36.0  
54.0  
72.0  
-
1
2
2
2
-
18.0  
36.0  
54.0  
72.0  
-
1
2
2
2
-
4.0  
66.3  
83.7  
128.1  
128.1  
154.4  
201.6  
210.9  
128.1  
128.1  
169.0  
190.7  
234.0  
63.7  
63.7  
84.5  
95.3  
117.0  
50.9  
13.5  
27  
40.6  
54.1  
-
1
2
2
2
-
30.1  
30.1  
15.5  
12.1  
42.3  
42.3  
17.6  
14.5  
225  
225  
114  
80  
38.6  
38.6  
19.3  
16.2  
38.6  
38.6  
19.3  
16.2  
10.0  
10.0  
5.0  
18.0  
36.0  
54.0  
72.0  
-
1
2
2
2
-
240  
(20)  
18.0  
36.0  
54.0  
72.0  
-
1
2
2
2
-
18.0  
36.0  
54.0  
72.0  
-
1
2
2
2
-
50.9  
68.6  
77.2  
94.5  
60  
70  
90  
4.0  
100  
175  
175  
175  
225  
225  
175  
175  
175  
225  
250  
80  
80  
90  
110  
125  
70  
153.4  
153.4  
154.4  
201.6  
210.9  
153.4  
153.4  
169.0  
190.7  
234.0  
67.9  
67.9  
84.5  
95.3  
117.0  
55.7  
13.5  
27  
40.6  
54.1  
-
1
2
2
2
-
245  
245  
125  
100  
10.0  
10.0  
5.0  
18.0  
36.0  
54.0  
72.0  
-
1
2
2
2
-
300  
(25)  
18.0  
36.0  
54.0  
72.0  
-
1
2
2
2
-
18.0  
36.0  
54.0  
72.0  
1
2
2
2
55.7  
68.6  
77.2  
94.5  
70  
70  
90  
100  
4.0  
NOTE 1: HACR Type per NEC.  
VOLTAGE LIMITATIONS  
POWER SUPPLY  
ELECTRIC HEAT CORRECTION FACTORS  
VOLTAGE  
NOMINAL VOLTAGE  
VOLTAGE  
208  
kW CAP. MULTIPLIER  
MIN.  
187  
414  
518  
MAX.  
208  
240  
480  
600  
1.00  
0.92  
0.92  
0.92  
VOLTAGE  
LIMITATIONS1  
208/230-3-60  
460-3-60  
575-3-60  
253  
506  
630  
230  
460  
575  
1. Utilization Range “A” in accordance with ARI Standard 110.  
Unitary Products Group  
43  
 
262292-YTG-B-0107  
TABLE 31: WR ELECTRICAL DATA - LOW AIRFLOW DRIVE MOTOR WITH POWERED CONVENIENCE OUTLET  
COMPRESSORS  
ID  
HEATER OPTION  
MIN.  
MAX. FUSE/  
BRKR  
SIZE  
(AMPS)  
OD FAN  
MOTORS  
FLA EACH  
CONV  
OUTLET  
AMPS  
1
MODEL  
(TONNAGE)  
BLOWER  
MOTOR  
FLA  
CIRCUIT  
AMPACITY  
(AMPS)  
VOLTAGE  
RLA  
LRA  
MODEL KW STAGES AMPS  
EACH  
EACH  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
0.0  
-
-
107.3  
107.3  
131.2  
178.4  
187.7  
107.3  
107.3  
145.8  
167.4  
210.7  
53.5  
53.5  
72.9  
83.7  
105.4  
41.1  
125  
125  
150  
200  
200  
125  
125  
150  
175  
225  
60  
60  
80  
90  
110  
50  
13.5  
27.0  
40.6  
54.1  
0.0  
18.0  
36.0  
54.0  
72.0  
0.0  
18.0  
36.0  
54.0  
72.0  
0.0  
18.0  
36.0  
54.0  
72.0  
0.0  
13.5  
27.0  
40.6  
54.1  
0.0  
18.0  
36.0  
54.0  
72.0  
0.0  
18.0  
36.0  
54.0  
72.0  
0.0  
18.0  
36.0  
54.0  
72.0  
1
2
2
2
-
1
2
2
2
-
1
2
2
2
-
1
2
2
2
-
1
2
2
2
-
1
2
2
2
-
1
2
2
2
-
1
2
2
2
37.5  
75.1  
112.7  
150.2  
-
43.3  
86.6  
129.9  
173.2  
-
21.7  
43.3  
65.0  
86.6  
-
17.3  
34.6  
52.0  
69.3  
-
37.5  
75.1  
112.6  
150.1  
-
43.3  
86.6  
129.9  
173.2  
-
21.7  
43.3  
65.0  
86.6  
-
17.3  
34.6  
52.0  
69.3  
208  
30.1  
30.1  
15.5  
12.1  
42.3  
42.3  
17.6  
14.5  
225  
225  
114  
80  
2.4  
2.4  
0.9  
0.6  
2.4  
2.4  
0.9  
0.6  
20.0  
20.0  
10.0  
7.5  
10.0  
10.0  
5.0  
230  
460  
575  
208  
230  
460  
575  
240  
(20)  
41.1  
57.7  
66.3  
83.7  
50  
60  
70  
90  
4.0  
134.8  
134.8  
134.8  
178.4  
187.7  
134.8  
134.8  
145.8  
167.4  
210.7  
58.2  
58.2  
72.9  
83.7  
105.4  
46.5  
175  
175  
175  
200  
200  
175  
175  
175  
175  
225  
70  
70  
80  
90  
110  
60  
245  
245  
125  
100  
20.0  
20.0  
10.0  
7.5  
10.0  
10.0  
5.0  
300  
(25)  
46.5  
57.7  
66.3  
83.7  
60  
60  
70  
90  
4.0  
NOTE 1: HACR Type per NEC.  
VOLTAGE LIMITATIONS  
POWER SUPPLY  
ELECTRIC HEAT CORRECTION FACTORS  
VOLTAGE  
NOMINAL VOLTAGE  
VOLTAGE  
208  
kW CAP. MULTIPLIER  
MIN.  
187  
414  
518  
MAX.  
208  
240  
480  
600  
1.00  
0.92  
0.92  
0.92  
VOLTAGE  
LIMITATIONS1  
208/230-3-60  
460-3-60  
575-3-60  
253  
506  
630  
230  
460  
575  
1. Utilization Range “A” in accordance with ARI Standard 110.  
44  
Unitary Products Group  
 
262292-YTG-B-0107  
TABLE 32: PHYSICAL DATA  
MODELS  
WR180  
WR240  
WR300  
CENTRIFUGAL BLOWER (Dia. x Wd.)  
FAN MOTOR HP  
15x15  
5/7.5  
18x15  
EVAPORATOR  
BLOWER  
7.5/10.0/15.0  
7.5/15.0  
ROWS DEEP  
6
EVAPORATOR  
COIL  
FINS PER INCH  
13  
FACE AREA (Sq. Ft.)  
PROPELLER DIA. (In.)  
FAN MOTOR HP  
20.52  
(Each)  
(Each)  
(Each)  
24  
1/3  
30  
3/4  
CONDENSER FAN  
(FOUR PER UNIT)  
NOM. CFM TOTAL  
ROWS DEEP  
4,000  
5,000  
2
20  
CONDENSER  
COIL  
FINS PER INCH  
FACE AREA (Sq. Ft.)  
ROWS DEEP  
63.8  
2
REHEAT COIL  
FINS PER INCH  
13  
FACE AREA (Sq. Ft.)  
17.2  
COMPRESSOR  
(QTY. PER UNIT)  
SCROLL  
2
QUANTITY PER UNIT (16” X 25” X 2”)  
QUANTITY PER UNIT (16” X 20” X 2”)  
TOTAL FACE AREA (Sq. Ft.)  
4
FILTERS  
CHARGE  
4
20  
SYSTEM No. 1  
SYSTEM No. 2  
COOLING ONLY  
24/0  
23/0  
28/8  
27/0  
2710  
2910  
2950  
260  
160  
28/0  
26/4  
REFRIGERANT 22  
(Lb./Oz.)  
2410  
2610  
2650  
2810  
3010  
3050  
BASIC  
UNIT  
N24  
N32  
GAS / ELECTRIC  
DOUBLE WALL  
ECONOMIZER  
ECONOMIZER WITH  
POWER EXHAUST  
245  
MOTORIZED DAMPER  
18 KW  
150  
25  
36 KW  
54 KW  
72 KW  
30  
OPERATING  
WEIGHTS  
(LBS.)  
ELECTRIC  
HEATER  
35  
40  
HOT GAS BYPASS  
SUPPLY FAN VFD  
ROOF CURB  
10  
See Table 33  
185  
BAROMETRIC DAMPER  
45  
ECONOMIZER / MOTORIZED  
DAMPER RAIN HOOD  
ECONOMIZER / POWER  
EXHAUST RAIN HOOD  
WOOD SKID  
55  
90  
220  
TABLE 33: SUPPLY FAN VFD WEIGHTS, IN LBS.  
SUPPLY FAN MOTOR  
230V  
460V  
575V  
W/O MANUAL BYPASS  
25  
30  
30  
30  
25  
30  
30  
30  
30  
30  
35  
40  
5.0 hp  
7.5 hp  
10.0 hp  
15.0 hp  
W/MANUAL BYPASS  
5.0 hp  
30  
35  
35  
40  
30  
35  
35  
35  
35  
35  
40  
45  
7.5 hp  
10.0 hp  
15.0 hp  
Unitary Products Group  
45  
   
262292-YTG-B-0107  
ECONOMIZER / MOTORIZED DAMPER  
FIXED OUTDOOR INTAKE AIR AND  
POWER EXHAUST RAIN HOODS  
(See detail Y)  
BLOWER MOTOR  
ACCESS (Location of  
Optional VFD Bypass)  
BLOWER ACCESS  
(Location of  
BLOWER  
COMPARTMENT  
ACCESS  
Optional VFD)  
COMPRESSOR ACCESS  
180-19/32  
DOT PLUG  
52-5/8  
(For pressure  
drop reading)  
GAS OR ELECTRIC  
HEAT  
ACCESS  
COIL  
VENT AIR  
GUARD  
KIT  
OUTLET  
HOODS  
COMBUSTION  
AIR INLET HOOD  
21.00  
9-3/4  
(C) GAS  
SUPPLY  
ENTRY  
CONDENSER  
COILS  
7-1/8  
136-1/4  
(A) CONTROL WIRING  
92  
6-3/8  
ENTRY  
5
DISCONNECT  
SWITCH  
46-5/8  
11-1/2  
CONTROL BOX  
ACCESS  
LOCATION  
5-7/8  
(B) POWER  
All dimensions are in inches. They are  
subject to change without notice.  
Certified dimensions will be provided  
upon request.  
35  
WIRING  
ENTRY  
BOTTOM SUPPLY  
AND RETURN  
AIR OPENINGS  
(See Note)  
35-1/4  
RETURN  
AIR  
33  
2-3/4  
SUPPLY  
AIR  
3-3/4  
21-1/2  
UNIT BASE RAILS  
Shown separately to illustrate  
Bottom Duct openings. Power  
and Gas Piping Connection  
location.  
(D)  
GAS SUPPLY  
ENTRY  
(B) POWER WIRING  
ENTRY  
11-1/8  
NOTE:  
For curb mounted units, refer to the curb hanger  
dimensions of the curb for proper size of the  
supply and return air duct connections.  
8-1/8  
(A) CONTROL WIRING  
ENTRY  
12-1/2  
46-5/8  
9-1/4  
9-3/4  
FIGURE 12:UNIT DIMENSIONS WR180, 240 & 300 (FRONT VIEW)  
TABLE 34: UTILITIES ENTRY DATA  
OPENING SIZE  
HOLE  
USED FOR  
(DIA.)  
1-1/8” KO  
Side  
A
Control Wiring  
3/4” NPS (Fem.)  
3-5/8” KO  
Bottom  
Side  
Bottom  
1
B
Power Wiring  
3” NPS (Fem.)  
C
D
2-3/8” KO  
Gas Piping (Front)  
,
1
2
1-11/16” Hole  
Gas Piping (Bottom)  
1. One-inch gas piping NPT required.  
2. Opening in the bottom of the unit can be located by the slice in  
the insulation.  
NOTE: All entry holes should be field sealed to prevent rain  
water entry into the building.  
46  
Unitary Products Group  
     
262292-YTG-B-0107  
EVAPORATOR  
SECTION  
DOT PLUG  
(For pressure  
drop reading)  
40-3/8"  
FILTER  
ACCESS  
SUPPLY  
AIR  
RETURN  
AIR  
COMPRESSOR  
ACCESS  
OUTDOOR  
AIR  
40-1/2"  
SUPPLY AIR  
ACCESS  
18-5/8"  
1" NPT FEMALE  
COND. DRAIN  
CONNECTION  
27-3/4"  
Dimensions listed are for side  
5-1/8"  
RETURN AIR  
ACCESS  
duct flange openings; see  
Field Accessories for Side  
Duct Flange Kit.  
OUTDOOR AIR  
COMPARTMENT  
ACCESS  
39-5/8"  
REAR  
VIEW  
FIGURE 13:REAR VIEW DIMENSIONS  
NOTE:Units are shipped with the bottom duct openings  
covered. An accessory flange kit is available for  
connecting side ducts.  
For bottom duct applications:  
For side duct applications:  
1. Remove the side panels from the supply and return air  
compartments to gain access to the bottom supply and  
return air duct covers.  
1. Replace the side panels on the supply and return air  
compartments with the side duct flange accessory kit  
panels.  
2. Remove and discard the bottom duct covers. Duct  
2. Connect ductwork to the flanges on those panels.  
openings are closed with sheet metal covers except when  
the unit includes a power exhaust option. The covering  
consists of a heavy black paper composition.  
3. Replace the side supply and return air compartment  
panels.  
Unitary Products Group  
47  
 
262292-YTG-B-0107  
NOTE: ELEC / ELEC Models: Units and ductwork are approved  
for zero clearance to combustible material when  
equipped with electric heaters.  
TABLE 35: MINIMUM CLEARANCES  
LOCATION  
CLEARANCE  
36”  
Front  
24” (Less Economizer)  
49” (With Economizer)  
Rear  
GAS / ELEC Models: A 1” clearance must be provided  
between any combustible material and the supply air  
ductwork for a distance of 3 feet from the unit.  
24” (Less Economizer)  
Left Side (Filter Access)  
Right Side (Cond. Coil)  
3
36” (With Economizer)  
36”  
The products of combustion must not be allowed to  
accumulate within a confined space and recirculate.  
1
0”  
Below Unit  
72” With 36” Maximum  
Horizontal Overhang (For  
Condenser Air Discharge)  
2
Above Unit  
Locate unit so that the vent air outlet hood is at least:  
• Three (3) feet above any force air inlet located within  
10 horizontal feet (excluding those integral to the unit).  
1. Units may be installed on combustible floors made from wood or  
class A, B, or C roof covering material.  
2. Units must be installed outdoors. Overhanging structures or  
shrubs should not obstruct condenser air discharge outlet.  
3. If economizer is factory installed, the unassembled rain hood  
must be removed from its ride along position in front of evapora-  
tor coil, or in the outdoor air compartment, prior to final installa-  
tion.  
• Four (4) feet below, four horizontal feet from, or one  
foot above any door or gravity air inlet into the building.  
• Four (4) feet from electric and gas meters, regulators  
and relief equipment.  
ECONOMIZER  
MOTORIZED  
DAMPER  
POWER EXHAUST  
RAIN HOOD  
(on Return Air Compartment)  
SUPPLY AIR  
COMPARTMENT  
RAIN HOOD  
ECONOMIZER / MOTORIZED DAMPER  
AND POWER EXHAUST RAIN HOODS  
(on Outdoor Air Compartment)  
FIXED  
OUTDOOR AIR  
INTAKE HOOD  
(located on  
Return Air  
Compartment)  
36-5/8”  
1“ CONDENSATE  
DRAIN  
(Must be trapped)  
16-1/8”  
5”  
28-3/16”  
92”  
REAR VIEW  
LH VIEW  
DETAIL “Y”  
UNIT WITH RAIN HOODS  
FIGURE 14:UNIT DIMENSIONS WR180, 240 & 300 (RAINHOOD)  
48  
Unitary Products Group  
   
262292-YTG-B-0107  
47.5" (15, 20, 25 TON)  
FIGURE 15:UNIT CENTER OF GRAVITY  
ROOF JACK  
INSTALLATION  
ROOF CURB  
INSTALLATION  
SLAB ON  
GROUND  
INSTALLATION  
FIGURE 16:TYPICAL UNIT APPLICATIONS  
Unitary Products Group  
49  
   
262292-YTG-B-0107  
B
E
F
C
D
C
A
A
D
B
FIGURE 17:FOUR AND SIX POINT LOADS  
TABLE 36: FOUR AND SIX POINT LOADS  
4 Point Loads (lbs)  
Operating  
Unit Size  
Weight  
A
B
C
D
WR180 Gas  
WR240 Gas  
WR300 Gas  
WR180 Elec  
WR240 Elec  
WR300 Elec  
2900  
3200  
3300  
2700  
3000  
3100  
495  
558  
575  
460  
523  
540  
924  
965  
516  
558  
575  
481  
523  
540  
1042  
1075  
860  
1042  
1075  
898  
977  
977  
1010  
1010  
6 Point Loads (lbs)  
Operating  
Weight  
Unit Size  
A
B
C
D
E
F
WR180 Gas  
WR240 Gas  
WR300 Gas  
WR180 Elec  
WR240 Elec  
WR300 Elec  
2900  
3200  
3300  
2700  
3000  
3100  
330  
372  
383  
307  
349  
360  
344  
372  
383  
321  
349  
360  
494  
533  
550  
460  
500  
517  
643  
695  
717  
599  
651  
673  
616  
695  
717  
573  
651  
673  
473  
533  
550  
440  
500  
517  
50  
Unitary Products Group  
   
262292-YTG-B-0107  
25-1/4"  
FIGURE 18:UNIT ROOF CURB DIMENSIONS  
ꢁ³  
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FIGURE 19:ROOF CURB DUCT OPENINGS DIMENSION  
1. The 2” space between the ducts allows for “jumping” an  
existing roof joist.  
FIGURE 20:CUT AWAY OF ROOF CURB  
2. The 58-1/2” overall dimension of the ducts allows ductwork  
penetration between roof joists that are spaced on 72”  
centers.  
NOTE: Ducts can be installed into the curb from the roof. All  
electrical and gas line connections can be made inside  
the curb.  
Unitary Products Group  
51  
     
262292-YTG-B-0107  
THERMOSTAT 1  
TERMINALS  
( RCB )  
REHEAT  
CONTROL BOARD  
RC  
RH  
Y1  
R
Y1  
Y2  
W1  
W2  
G
Y2  
W1  
W2  
G
C
C
OCC  
X1  
X3  
X4  
A1  
A2  
T
TERMINAL BLOCK  
RH  
2
HUM  
HUM  
1
2
3
4
DEHUMIDISTAT3  
T
TO REMOTE SENSOR  
2ET04701324 IF USED  
1 Electronic programmable Thermostat 2ET0770010024  
( includes subbase).  
2 Terminals A1 and A2 provide a relay output to close the  
outdoor economizer dampers when the thermostat  
switches to the set-back position.  
3 Dehumidistat closes on rise in humidity.  
TYPICAL  
THERMOSTAT  
RC  
R
Y1  
Y2  
G
RH  
Y1  
Y2  
G
( RCB )  
REHEAT  
CONTROL  
BOARD  
W1  
W1  
W2  
C
W2  
TERMINAL  
BLOCK  
RH  
OCC  
C
1
2
DEHUMIDISTAT1  
3
4
HUM  
1Dehumidistat closes on rise in humidity.  
TERMINAL BLOCK TB1  
FACTORY OR FIELD  
SUPPLIED DISCONNECT  
GROUND  
LUG  
THREE  
PHASE  
POWER  
SUPPLY  
FIGURE 21:TYPICAL FIELD WIRING  
52  
Unitary Products Group  
 
262292-YTG-B-0107  
They shall have built-in field convertible duct connections for  
down discharge supply/return or horizontal discharge supply/  
return, and be available with factory installed options or field  
installed accessories. The units shall be factory wired, piped,  
charged with R-22 refrigerant and factory tested prior to  
shipment. All unit wiring shall be both numbered and color  
coded. All units shall be manufactured in a facility certified to  
ISO 9001 standards and the cooling performance shall be rated  
in accordance with DOE and ARI test procedures. Units shall  
be ETL & CGA listed, classified to ANSIZ21.47 standards, UL  
1995/CAN/CSA No. 236-M90 conditions.  
GUIDE SPECIFICATIONS  
GENERAL  
Units shall be manufactured by York International Unitary  
Products Group in an ISO 9001 certified facility.  
York's Sunline Magnum™ units are convertible single package  
units. All models have dual independent refrigerant circuits for  
efficient part load operation and maximum comfort control.  
Although the units are primarily designed for curb mounting on  
a roof, they can also be slab-mounted at ground level or set on  
steel beams above a finished roof. Cooling only, cooling with  
gas heat and cooling with electric heat models are available  
with a wide variety of factory-mounted options and field-  
installed accessories to make them suitable for almost every  
application. All units are self-contained and assembled on full  
perimeter base rails with holes in the four corners for overhead  
rigging. Every unit is completely piped, wired, charged and  
tested at the factory to simplify the field installation and to  
provide years of dependable operation. All models (including  
those with an economizer) are suitable for either bottom or  
horizontal duct connections. Models with power exhaust are  
suitable for bottom duct connections only. For bottom duct,  
remove the sheet metal panels from the supply and return air  
openings through the base of the unit. For horizontal duct,  
replace the supply and return air panels on the rear of the unit  
with a side duct flange accessory. All supply air blowers are  
equipped with a belt drive that can be adjusted to meet the  
exact requirements of the job.  
UNIT CABINET  
Unit cabinet shall be constructed of G90 galvanized steel, with  
exterior surfaces coated with a non-chalking, powdered paint  
finish, certified at 1000 hour salt spray test per ASTM-B117  
standards. Indoor blower section shall be insulated with a  
minimum 1/2" thick insulation, coated on the airside. Aluminum  
foil faced insulation shall be used in the furnace compartment  
and be fastened with ridged fasteners to prevent insulation from  
entering the air stream. Cabinet panels shall be "large" size,  
easily removable for servicing and maintenance. Full perimeter  
base rails shall be provided to assure reliable transit of  
equipment, overhead rigging and proper sealing on roof curb  
applications. Disposable 2" filters shall be furnished and be  
accessible through a removable access door, sealed airtight.  
Units filter track shall be designed to accommodate either 1" or  
2" filters. Fan performance measuring ports shall be provided  
on the outside of the cabinet to allow accurate air  
measurements of evaporator fan performance without removing  
panels or creating air by-pass of the coils. Condensate pan  
shall be internally sloped and conform to ASHRAE 62-89 self-  
draining standards. Condensate connection shall be a minimum  
of 1" I.D. female and be a ridged mount connection. Unit shall  
incorporate a fixed outdoor air damper with an outdoor air  
intake opening covered with a bird screen and a rain hood  
painted to match the exterior of the unit.  
Each unit shall have 4 condenser fan motors. A high speed  
drive accessory is available for applications with a higher CFM  
and/or static pressure requirement. All compressors include  
crankcase heat and internal pressure relief. Every refrigerant  
circuit includes an expansion valve, a liquid line filter-drier, a  
discharge line high pressure switch and a suction line with a  
freezestat and low pressure/loss of charge switch. The unit  
control circuit includes a 75 VA transformer, a 24-volt circuit  
breaker and a relay board with two compressor lockout circuits,  
a terminal strip for thermostat wiring, plus an additional set of  
pin connectors to simplify the interface of additional field  
controls. All units have long lasting powder paint cabinets with  
1000 hour salt spray test approval under ASTM-B117  
procedures. All 208/230 and 460-volt models are ETL  
approved. All 208/230 and 575-volt models are CGA approved.  
All models include a 1-year limited warranty on the complete  
unit. Compressors and electric heater elements carry an  
additional 4-year warranty. Aluminized steel tubular heat  
exchangers carry an additional 9-year warranty.  
INDOOR (EVAPORATOR) FAN ASSEMBLY  
Fan shall be a belt drive assembly and include an adjustable-  
pitch motor pulley. Job site selected (B.H.P.) brake horsepower  
shall not exceed the motors nameplate horsepower rating, plus  
the service factor. Units shall be designed not to operate above  
service factor. Fan wheel shall be double-inlet type with  
forward-curved blades, dynamically balanced to operate  
smoothly throughout the entire range of operation. Airflow  
design shall be constant air volume.  
A variable air volume (VAV) option using a variable frequency  
drive (VFD) is available for applications requiring a constant  
supply duct static pressure. Units equipped for VAV shall be  
controlled by a duct pressure transducer with a 0 - 5” WC pres-  
sure range. The pressure transducer shall provide a 0 - 5 VDC  
output signal to a VAV control board which, in turn shall provide  
a 2 - 10 VDC speed reference signal to the VFD. Units  
equipped with VFD’s shall have factory-installed manual bypass  
as an option.  
DESCRIPTION  
Units shall be factory-assembled, single packaged, WR***N  
Electric Cooling/Gas Heat, WR***C/E Electric Cooling/Optional  
Electric Heat, designed for outdoor mounted installation. The 15  
and 20 ton units shall have minimum EER ratings of 9.7. The 25  
ton unit shall have a minimum EER rating of 9.5.  
Unitary Products Group  
53  
 
262292-YTG-B-0107  
OUTDOOR (CONDENSER) FAN ASSEMBLY  
c. Loss-of-charge/Low-pressure switch.  
1. High-pressure switch.  
The outdoor fans shall be of the direct-driven propeller type,  
discharge air vertically, have aluminum blades riveted to  
corrosion resistant steel spider brackets and shall be  
dynamically balanced for smooth operation. The 4 outdoor fan  
motors shall be totally enclosed with permanently lubricated  
bearings, internally protected against overload conditions and  
staged independently.  
2. Freeze-protection thermostat, evaporator coil. If any of  
the above safety devices trip, a LED (light-emitting  
diode) indicator shall flash a diagnostic code that  
indicates which safety switch has tripped.  
d. Unit shall incorporate "AUTO RESET" compressor over  
temperature, over current protection.  
REFRIGERANT COMPONENTS  
e. Unit shall operate with conventional thermostat designs  
and have a low voltage terminal strip for easy hook-up.  
Compressors:  
f. Unit control board shall have on-board diagnostics and  
fault code display.  
a. Shall be Scroll compressors internally protected with  
internal high-pressure relief and over temperature  
protection.  
g. Standard controls shall include anti-short cycle and low  
voltage protection, and permit cooling operation down to  
0 °F.  
b. Shall have internal spring isolation and sound muffling to  
minimize vibration and noise, and be externally isolated  
on a dedicated, independent mounting.  
h. Control board shall monitor each refrigerant safety switch  
independently.  
Coils:  
i. Control board shall retain last 5 fault codes in non volatile  
memory, which will not be lost in the event of a power  
loss.  
a. Evaporator and condenser coils shall have aluminum  
plate fins mechanically bonded to seamless internally  
enhanced copper tubes with all joints brazed. Special  
Phenolic coating shall be available as a factory option.  
GAS HEATING SECTION (WR***N MODELS)  
b. Evaporator and Condenser coils shall be of the direct  
expansion, draw-thru, design.  
Shall be designed with induced draft combustion with post  
purge logic and energy saving direct spark ignition, redundant  
main gas valve. Ventor wheel shall be constructed of stainless  
steel for corrosion resistance. The heat exchanger shall be of  
the tubular type, constructed of T1-40 aluminized steel for  
corrosion resistance and allowing minimum mixed air entering  
temperature of 25° F. Burners shall be of the in-shot type,  
constructed of aluminum coated steel and contain air mixture  
adjustments. All gas piping shall enter the unit cabinet at a  
single location through either the side or curb, without any field  
modifications. An integrated control board shall provide timed  
control of evaporator fan functioning and burner ignition.  
Heating section shall be provided with the following minimum  
protection:  
Refrigerant Circuit and Refrigerant Safety Components shall  
include:  
a. Balance-port thermostatic expansion valve with  
independent circuit feed system.  
b. Filter drier/strainer to eliminate any moisture or foreign  
matter.  
c. Accessible service gage connections on both suction  
and discharge lines to charge, evacuate, and measure  
refrigerant pressure during any necessary servicing or  
troubleshooting, without losing charge.  
d. The refrigeration system shall provide at least 10° F of  
sub-cooling at design conditions.  
a. Primary and auxiliary high-temperature limit switches.  
b. Induced draft motor speed sensor.  
e. All models shall have two independent circuits.  
c. Flame roll out switch (automatic reset).  
f. Hot gas bypass option shall be factory-installed on  
compressor #1 discharge line to provide cooling in low-  
load applications. HGBP shall be a standard feature on  
VAV models and an optional feature on CV models.  
d. Flame proving controls. Unit shall have two independent  
stages of capacity.  
ELECTRIC HEATING (WR***C/E MODELS)  
UNIT CONTROLS  
Nickel chromium electric heating elements shall be provided as  
required by the application with 1 or 2 stage control, as  
required, from 13.5 KW to 72 KW capacities. The heating  
section shall have a primary limit control(s) and automatic reset  
to prevent the heating element system from operating at an  
excessive temperature. Units with Electric Heating shall be  
wired for a single point power supply with branch circuit fusing  
(where required).  
a. Unit shall be complete with self-contained low-voltage  
control circuit protected by a resetable circuit breaker on  
the 24-volt transformer side.  
b. Unit shall incorporate a lockout circuit which provides  
reset capability at the space thermostat or base unit,  
should any of the following standard safety devices trip  
and shut off compressor.  
54  
Unitary Products Group  
262292-YTG-B-0107  
UNIT OPERATING CHARACTERISTICS  
the fully closed position when the indoor fan motor is de-  
energized. Dampers shall fully close on power loss.  
Unit shall be capable of starting and running at 125° F outdoor  
temperature, exceeding maximum load criteria of ARI Standard  
340/360. The compressor, with standard controls, shall be  
capable of operation down to 25° F outdoor temperature.  
Accessory low ambient kit shall be available for operation to 0°  
F. Unit shall be provided with fan time delay to prevent cold air  
delivery before heat exchanger warms up (Gas heat only).  
OTHER PRE-ENGINEERED ACCESSORIES AVAILABLE  
• ROOF CURB - 14" high, full perimeter curb with wood  
nailer (shipped knocked-down).  
• 100% BAROMETRIC RELIEF DAMPER - Contains a rain  
hood, air inlet screen, exhaust damper and mounting  
hardware. Used to relieve internal air pressure through  
the unit.  
ELECTRICAL REQUIREMENTS  
• PROPANE CONVERSION KIT - Contains new orifices  
and gas valve parts to convert from natural to L.P. gas.  
One per unit required.  
All unit power wiring shall enter unit cabinet at a single factory  
provided location and be capable of side or bottom entry, to  
minimize roof penetrations and avoid unit field modifications.  
Separate side and bottom openings shall be provided for the  
control wiring.  
• HIGH ALTITUDE - NATURAL GAS - Contains orifices  
required for applications between 2000 and 6000 feet  
altitude.  
STANDARD LIMITED WARRANTIES  
• HIGH ALTITUDE - PROPANE GAS - Contains orifices  
required for applications between 2000 and 6000 feet  
altitude. Must be used with propane conversion kit.  
•
•
•
•
Compressor 5 Years  
Heat Exchanger 10 Years  
Electric Heat Element 5 Years  
Other Parts 1 Year  
• BURGLAR BARS - Designed to work with above roof  
curbs, depending on unit model. Fits duct openings of  
curb supply and return air openings.  
OPTIONAL OUTDOOR AIR (Shall be made available by  
either/or):  
• SIDE DUCT FLANGE - Supply and return air duct flanges  
for side duct applications. Do not use on units with power  
exhaust.  
• ELECTRONIC ENTHALPY AUTOMATIC ECONOMIZER  
- Outdoor and return air dampers that are interlocked and  
positioned by a fully-modulating, spring-return damper  
actuator. The maximum leakage rate for the outdoor air  
intake dampers shall not exceed 2% when dampers are  
fully closed and operating against a pressure differential  
of 0.5 IWG. A unit-mounted potentiometer shall be  
provided to adjust the outdoor and return air damper  
assembly to take in CFM of outdoor air to meet the  
minimum ventilation requirement of the conditioned space  
during normal operation. During economizer operation, a  
mixed-air temperature control shall modulate the outdoor  
and return air damper assembly to prevent the supply air  
temperature from dropping below 55°F. Changeover from  
compressor to economizer operation shall be provided by  
an integral electronic enthalpy control that feeds input into  
the basic module. The outdoor intake opening shall be  
covered with a rain hood that matches the exterior of the  
unit. Water eliminator/filters shall be provided.  
• HIGH SPEED DRIVE - Includes blower pulley and belt for  
higher CFM and/or static pressure requirements.  
• WOOD SKID - Allows unit to be handled with 90" forks.  
• ECONOMIZER/MOTORIZED DAMPER RAIN HOOD  
(WRN/E/C30 only) - Contains all hood panels and the  
hardware for assembling.  
• ANTI-RECYCLE TIMER - Assures 5-minute off time  
between compressor cycles.  
• LOW AMBIENT KIT - Provides unit cooling operation  
down to 0°F.  
• COIL GUARD KIT - Guard for cooling coil.  
OTHER FACTORY INSTALLED OPTIONS  
• POWER EXHAUST OPTION - To work in conjunction  
with economizers.  
• STAINLESS STEEL HEAT EXCHANGER  
• STAINLESS STEEL DRAIN PAN  
Simultaneous economizer/compressor operation is also  
possible. Dampers shall fully close on power loss.  
• TECHNICOAT PHENOLIC COATED CONDENSER AND  
EVAPORATOR COIL  
• MOTORIZED OUTDOOR AIR DAMPERS - Outdoor and  
return air dampers that are interlocked and positioned by  
a 2-position, spring-return damper actuator. The  
maximum leakage rate for the outdoor air intake dampers  
shall not exceed 2% when dampers are fully closed and  
operating against a pressure differential of 0.5 IWG. A  
unit-mounted potentiometer shall be provided to adjust  
the outdoor and return air damper assembly to take in the  
design CFM of outdoor air to meet the ventilation  
requirements of the conditioned space during normal  
operation. Whenever the indoor fan motor is energized,  
the dampers open up to one of two pre-selected positions  
- regardless of the outdoor air enthalpy. Dampers return to  
• ELECTRONIC SINGLE ENTHALPY ECONOMIZER  
• DIRTY FILTER SWITCH  
• DOUBLE WALL  
• PHASE MONITOR  
• COIL GUARD  
• POWERED GFI CONVENIENCE OUTLET  
• NON-POWERED GFI CONVENIENCE OUTLET  
• BAS CONTROLS (S implicity® INTELLI-Comfort™, CPC,  
JOHNSON, HONEYWELL, NOVAR)  
Unitary Products Group  
55  
• BAS READY ECONOMIZER (BELIMO ACTUATOR  
• 4" THROW AWAY FILTERS  
WITHOUT A CONTROLLER)  
• DISCONNECT SWITCH  
• HINGED FILTER DOOR ACCESS AND TOOLLESS  
ACCESS PANELS  
• SUPPLY AIR SMOKE DETECTOR  
• RETURN AIR SMOKE DETECTOR  
• LOW SPEED DRIVE (WR240 & WR300 only)  
• HIGH SPEED DRIVE  
• 2" PLEATED FILTERS  
Subject to change without notice. Printed in U.S.A.  
262292-YTG-B-0107  
Copyright © 2007 by Unitary Products Group. All rights reserved.  
Supersedes: 262292-YTG-A-0706  
Unitary  
Products  
Group  
5005  
York  
Drive  
Norman  
OK  
73069  

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