York WR300, WR240 User Manual

®

262292-YTG-B-0107

TECHNICAL GUIDE

SUNLINE MagnaDRY™
GAS/ELECTRIC SINGLE

PACKAGE AIR CONDITIONERS

WR 180, 240 & 300
15 thru 25 NOMINAL TONS

11.9 EER (15 TONS), 11.0 EER (20 TONS),

10.0 EER (25 TONS)

DESCRIPTION

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.

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

• Scroll compressors

• 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

• 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

• Simplicity® 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

TABLE OF CONTENTS

262292-YTG-B-0107

DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

PRODUCT NOMENCLATURE. . . . . . . . . . . . . . . . . . . . . . .3

FEATURES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

FACTORY-INSTALLED OPTIONS . . . . . . . . . . . . . . . . . . .8

FIELD-INSTALLED ACCESSORIES . . . . . . . . . . . . . . . . . .9

GUIDE SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . .53

LIST OF FIGURES

Fig. # Pg. #

1 UNIT CUTAWAY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

2 REHEAT CONTROL BOARD. . . . . . . . . . . . . . . . . . . . .6

3 REHEAT CONTROLS - PART 1. . . . . . . . . . . . . . . . . . .7

4 REHEAT CONTROLS - PART 2. . . . . . . . . . . . . . . . . . .7

5 WR180 MOISTURE REMOVAL - ALT. MODE. . . . . . 21

6 WR180 MOISTURE REMOVAL - NORMAL MODE. . 21

7 WR240 MOISTURE REMOVAL - ALT. MODE. . . . . . 22

8 WR240 MOISTURE REMOVAL - NORMAL MODE. . 22

9 WR300 MOISTURE REMOVAL - ALT. MODE. . . . . . 23

10 WR300 MOISTURE REMOVAL - NORMAL MODE. . 23
11 ALTITUDE/TEMPERATURE CONVERSION

FACTOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

12 UNIT DIMENSIONS WR180, 240 & 300

(FRONT VIEW) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46

13 REAR VIEW DIMENSIONS . . . . . . . . . . . . . . . . . . . . 47

14 UNIT DIMENSIONS WR180, 240 & 300

(RAINHOOD). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48

15 UNIT CENTER OF GRAVITY. . . . . . . . . . . . . . . . . . . 49

16 TYPICAL UNIT APPLICATIONS . . . . . . . . . . . . . . . . 49

17 FOUR AND SIX POINT LOADS . . . . . . . . . . . . . . . . . 50

18 UNIT ROOF CURB DIMENSIONS . . . . . . . . . . . . . . . 51

19 ROOF CURB DUCT OPENINGS DIMENSION . . . . . 51

20 CUT AWAY OF ROOF CURB . . . . . . . . . . . . . . . . . . 51

21 TYPICAL FIELD WIRING . . . . . . . . . . . . . . . . . . . . . . 52

LIST OF TABLES

Tbl. # Pg. #

1 SOUND POWER RATING . . . . . . . . . . . . . . . . . . . . . 11

2 CAPACITY RATINGS - (ARI 360) . . . . . . . . . . . . . . . 11

3 GAS HEAT RATINGS. . . . . . . . . . . . . . . . . . . . . . . . . 11

4 COOLING CAPACITIES FOR WR180 . . . . . . . . . . . . 12

5 COOLING CAPACITIES FOR WR240 . . . . . . . . . . . . 14

6 COOLING CAPACITIES FOR WR300 . . . . . . . . . . . . 16

7 COOLING CAPACITIES FOR WR180 (ALTERNATE

REHEAT MODE). . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

8 COOLING CAPACITIES FOR WR240 (ALTERNATE

REHEAT MODE). . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

Tbl. # Pg. #

9 COOLING CAPACITIES FOR WR300 (ALTERNATE

REHEAT MODE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

10 ALTITUDE CORRECTION FACTORS. . . . . . . . . . . . . 24

11 WR180 BLOWER PERFORMANCE - 15 TON STD.

DRIVE (COOLING ONLY) DOWNFLOW. . . . . . . . . . . 26

12 WR180 BLOWER PERFORMANCE - 15 TON STD.

DRIVE (GAS HEAT) DOWNFLOW . . . . . . . . . . . . . . . 27

13 WR180 BLOWER PERFORMANCE - 15 TON HIGH

STATIC DRIVE (COOLING ONLY) DOWNFLOW. . . . 28

14 WR180 BLOWER PERFORMANCE - 15 TON HIGH

STATIC DRIVE (GAS HEAT) DOWNFLOW . . . . . . . . 29

15 WR240 BLOWER PERFORMANCE - 20 TON STD.

DRIVE (COOLING ONLY) DOWNFLOW. . . . . . . . . . . 30

16 WR240 BLOWER PERFORMANCE - 20 TON STD.

DRIVE (GAS HEAT) DOWNFLOW . . . . . . . . . . . . . . . 31

17 WR240 BLOWER PERFORMANCE - 20 TON HIGH

STATIC DRIVE (COOLING ONLY) DOWNFLOW. . . . 32

18 WR240 BLOWER PERFORMANCE - 20 TON HIGH

STATIC DRIVE (GAS HEAT) DOWNFLOW . . . . . . . . 33

19 WR300 BLOWER PERFORMANCE - 25 TON STD.

DRIVE (COOLING ONLY) DOWNFLOW. . . . . . . . . . . 34

20 WR300 BLOWER PERFORMANCE - 25 TON STD.

DRIVE (GAS HEAT) DOWNFLOW . . . . . . . . . . . . . . . 35

21 WR300 BLOWER PERFORMANCE - 25 TON HIGH

STATIC DRIVE (COOLING ONLY) DOWNFLOW. . . . 36

22 WR300 BLOWER PERFORMANCE - 25 TON HIGH

STATIC DRIVE (GAS HEAT) DOWNFLOW . . . . . . . . 37

23 BLOWER MOTOR AND DRIVE DATA . . . . . . . . . . . .38

24 STATIC RESISTANCES. . . . . . . . . . . . . . . . . . . . . . . .38

25 POWER EXHAUST PERFORMANCE. . . . . . . . . . . . .38

26 WR ELECTRICAL DATA - STANDARD DRIVE

MOTOR W/O POWERED CONV. OUTLET. . . . . . . . .39

27 WR ELECTRICAL DATA - HIGH STATIC DRIVE

MOTOR W/O POWERED CONV. OUTLET. . . . . . . . .40

28 WR ELECTRICAL DATA - LOW AIRFLOW DRIVE

MOTOR W/O POWERED CONV. OUTLET. . . . . . . . .41

29 WR ELECTRICAL DATA - STANDARD DRIVE

MOTOR WITH POWERED CONV. OUTLET. . . . . . . .42

30 WR ELECTRICAL DATA - HIGH STATIC DRIVE

MOTOR WITH POWERED CONV. OUTLET. . . . . . . .43

31 WR ELECTRICAL DATA - LOW AIRFLOW DRIVE

MOTOR WITH POWERED CONV. OUTLET. . . . . . . .44

32 PHYSICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45

33 SUPPLY FAN VFD WEIGHTS, IN LBS.. . . . . . . . . . . . 45

34 UTILITIES ENTRY DATA . . . . . . . . . . . . . . . . . . . . . . .46

35 MINIMUM CLEARANCES . . . . . . . . . . . . . . . . . . . . . . 48

36 FOUR AND SIX POINT LOADS. . . . . . . . . . . . . . . . . . 50

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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

W = A/C, Single Pkg.,

R-22 w/6-Row Evap.

Product Identifier

R = 90.1 w/Reheat

Nominal Cooling Capacity

180 = 15 Ton
240 = 20 Ton
300 = 25 Ton

Heat Type and Nominal Heat Capacity

C00 = Cooling Only. No field installed

electric heat

Gas Heat Options

N24 = 240 MBH Output Aluminized Steel
N32 = 320 MBH Output Aluminized Steel
S24 = 240 MBH Output Stainless Steel
S32 = 320 MBH Output Stainless Steel

Electric Heat Options

E18 = 18 KW
E36 = 36 KW
E54 = 54 KW
E72 = 72 KW

Airflow

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
P = Hi Static Drive/Single Input Econo.
Q = Hi Static Drive/Single Input Econo./Power Exhaust

(Downflow Only)
R = Hi Static Drive/Motorized Damper
2 = Low Static Drive
3 = Low Static Drive/Single Input Econo.
4 = Low Static Drive/Single Input Econo./Power Exhaust

(Downflow Only)

5 = Low Static Drive/Motorized Damper

2 = 208/230-3-60
4 = 460-3-60
5 = 575-3-60

Voltage

Product Style

A = Style A

These four digits will not be assigned until a quote is requested, or an order placed.

SS Drain Pan

CPC Controller, DFS, APS

Johnson Controller, DFS, APS

Honeywell Controller, DFS, APS

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

4" Pleated filters

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 W R models only)

Any Combination of Additional Options that Don’t Have an Option Code Pre-assigned

Product Generation

1 = First Generation
2 = Second Generation

Standard Cabinet

AA = None
AB = Phase Monitor
AC = Coil Guard
AD = Dirty Filter Switch
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

ZZ = If desired option combination is not listed above, ZZ will be assigned and configuration options will be

located in digits 15-18.

Installation Options

A = No Options Installed
B=Option1
C = Option 2
D=Options1&2
E = Option 3
F = Option 4
G = Options 1 & 3
H=Options1&4
J = Options 1, 2 & 3
K = Options 1, 2, & 4
L = Options 1,3 & 4
M = Options 1, 2, 3, & 4
N=Options2&3
P = Options 2 & 4
Q = Options 2, 3, & 4
R=Options3&4
S = Option 5
T=Options1&5
U=Options1,3,&5
V = Options 1, 4, & 5
W=Options1,3,4,&5
X=Options3&5
Y=Options4&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'dConv.Outlet

Configuration Options (not required for all units)

Additional Options

Hinged Filter Door & Toolless Access Cabinet

BA = Hinged Filter Door & Toolless Access Panels
BB = Phase Monitor, Hinged Filter Door & Toolless

Access Panels

BC = Coil Guard, Hinged Filter Door & Toolless

Access Panels

BD = Dirty Filter Switch, Hinged Filter Door &

Toolless Access Panels

BE = Phase Monitor & Coil Guard, Hinged Filter

Door & Toolless Access Panels

BF = Phase Monitor & Dirty Filter Switch, Hinged

Filter Door & Toolless Access Panels

BG = Coil Guard & Dirty Filter Switch, Hinged Filter

Door & Toolless Access Panels

BH = Phase Monitor, Coil Guard & Dirty Filter Switch,

Hinged Filter Door & Toolless Access Panels

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262292-YTG-B-0107

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.

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

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.

All models are available with these “factory mounted” outdoor
air damper options:

• Single enthalpy econom i z er

• Single enthalpy economizer with power exhaust

• Motorized outdoor air damper

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.

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 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.

• Simplicity® Controls - Simplicity® control boards have
standardized a number of features previously available
only as options or by utilizing additional controls.

• Low Ambient - An integrated low-ambient control allows
all units to operate in the cooling mode down to 0°F

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.

• 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.

• 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.

• 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.

• 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.

• 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 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.

• 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.

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.

4 Unitary Products Group

262292-YTG-B-0107

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.

• 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.

• BAS Controls - York’s Magnum series units offer factory
mounted BAS controls such as Novar, Honeywell,
Johnson, and CPC.

REHEAT MODE SEQUENCE OF OPERATION

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.

LOCATION OF VFD (Optional)

LOCATION OF VFD BYPASS (Optional)

“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.

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.

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.

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".

The unit will not operate in the reheat mode if there is any call
for heating.

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.

"ALTERNATE” MODE

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.

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.

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.

Indoor blower operation is initiated upon a call for first stage
cooling, second stage cooling or dehumidification.

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".

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

G

W1

W2

OCC

C

COM

P4

K1

K2

K4

K3

`

P6

P5

P3

HGRR

HGR

MODE

SELECTION

JUMPER

HUM

DEHUMIDISTAT

HARNESS

CONNECTION

FIGURE 2: REHEAT CONTROL BOARD

6 Unitary Products Group

262292-YTG-B-0107

FIGURE 3: REHEAT CONTROLS - PART 1

UCB

UNIT CONTROL

BOARD

RHB

REHEAT CONTROL

BOARD

TERMINAL

RHTB

REHEAT

BLOCK

HUM

HUMIDIFY

TERMINAL

RHR

REHEAT

RELAY

REHEAT

SOLENOID

1

REHEAT

SOLENOID

UCB

UNIT CONTROL

BOARD

RHB

REHEAT

SOLENOID

2

3

REHEAT

CONTROL

BOARD

FIGURE 4: REHEAT CONTROLS - PART 2

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262292-YTG-B-0107

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.

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.

The exhaust fan, motor and controls are installed and
wired at the factory. The rain hood must be assembled
and installed in the field.

• MOTORIZED OUTDOOR AIR INT A KE DAMPER ­Includes a slide-in / plug-in damper assembly with a 2­position, 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.

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.

• 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.

An optional, factory-installed manual bypass switch avail­able 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.

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 customer­installed BAS.

A ‘VFD-ready’ option provides the provisions for a cus­tomer-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 fol­lows:

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 tempera­ture, vibration, humidity, dust, corrosive gas, explosive
gas, etc.

A terminal block located in the control box is provided for
field connection of the VFD controls.

• HOT GAS BYPASS - To allow for low cooling load opera­tion, 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.

• FILTER OPTIONS - Standard units are shipped with 2”
throw-away filters installed. 2” pleated and 4” pleated
filters are offered as a factory installed op t io n .

• 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-powe re d” 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.

• 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
contamination of the air stream.

• BAS - Building Automation System Controls
(available on two-system cooling product only).

Simplicity® INTELLI-Comfort™ CONTROL - The York®
Simplicity® 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 Out­side Air Humidity sensor, a Return Air Humidity sensor, an
Inside IAQ sensor, and an Outside Air IAQ sensor. Con-

8 Unitary Products Group

262292-YTG-B-0107

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

uses an inside CO2 sensor to perform Demand Ventila­tion. It can also use an Outside CO2 sensor to perform Dif­ferential Demand Ventilation. It uses a Patented Comfort
Ventila ti on algorithm to provide comfortable ventilation air
temperature. The patented economizer-loading algorithm
will protect the equipment when harsh operating condi­tions 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 Simplicity® INTELLI­Comfort™ balances space temperature, ventilation air
temperature, CO

and humidity for ultimate comfort.

2

Simplicity® INTELLI-Comfort™ with ModLINC CON-
TROL - The York® Simplicity® INTELLI-Comf ort™ with

ModLINC control is factory installed. It includes all the fea­tures of the INTELLI-Comfort™ control with an additional
control to translate communications from MODBUS to the
BACnet MSTP protocol.

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.

JOHNSON CONTROLS BAS CONTROL - The Johnson
Control YK-UNT-1126 building automation system control­ler is factory installed. Includes supply air sensor, return
air sensor, dirty filter indicator switch, and air proving
switch.

CPC BAS CONTROL - The Computer Process Controls
Model 810-3060 ARTC Advanced Rooftop building auto­mation system controller is factory installed. Includes sup­ply air sensor , ret ur n air sens or, dirty filter indicator switch
and air proving switch.

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.

• COIL GUARD - Customers can purchase a coil guard kit
to protect the condenser coil from damage. This is not a
hail guard kit.

• 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.

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.

• 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.

• PHASE MONITORS - Designed to prevent unit damage.
The phase monitor will shut the unit down in an out-of­phase condition.

• 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.

• HINGED FILTER DOOR/”TOOLLESS” BLOWER AND
ACCESS PANELS (not hinged) - This option allows for
easy access and maintenance.

NOTE: Knobs are shipped separately within the unit to

prevent shipping damage. These must be field
installed for toolless operation.

• 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.

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.

The rainhood is painted to match the basic unit and must
be field-assembled before installing.

• MOTORIZED OUTDOOR AIR INTAKE DAMPER -
Includes a slide-in / plug-in damper assembly with a 2­position, 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.

• 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.

They're designed to fit inside the base rails of the unit and
include both a wood nailing strip and duct hanger
supports.

• HIGH ALTITUDE NATURAL GAS - Burner orifices and
pilot orifices are provided for proper furnace operation at
altitudes up to 6,000 feet.

• PROPANE - Burner orifices, pilot orifices and gas valve
parts are provided to convert a natural gas furnace to
propane.

• 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.

• 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.

• BAROMETRIC RELIEF DAMPER - This damper
accessory can be used to relieve internal building air

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.

• ENTHALPY ACCESSORY CONTROL KIT - This kit
contains the required components to convert a single
enthalpy economizer to dual enthalpy.

• BURGLAR BARS - Mount in the supply and return
openings to prevent entry into the duct work.

• 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.

• WOOD SKID - Allows unit to be handled with 90” forks.

SENSOR - Senses CO2 levels and automatically

• CO

2

overrides the economizer when levels rise above the
present limits.

• 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-of­phase condition.

10 Unitary Products Group

262292-YTG-B-0107

TABLE 1: SOUND POWER RATING

UNIT
SIZE

WR180 6,000 1.00 1,080 4.60 99 99 89 82 84 77 72 67 89 56
WR240 8,000 1.00 1,120 6.65 102 102 92 85 87 80 75 70 92 59
WR300 10,000 1.30 1160 12.5 108 108 98 91 93 86 81 76 98 65

1. These values have been accessed using a model of sound propagation from a point source into the hemispheric\free field. The dBA

2. At a distance of 10 feet from the blower.

CFM

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.

ESP BLOWER

IWG RPM BHP 63 125 250 500 1,000 2,000 4,000 8,000

TABLE 2: CAPACITY RATINGS - (ARI 360)

MODEL MBH

COOLING ONLY

WR180C/E00
WR240C/E00
WR300C/E00

COOLING WITH GAS HEAT

WR180N/S
WR240N/S
WR300N/S

COOLING WITH ELECTRIC HEAT

WR180E18
WR180E36
WR180E54
WR180E72
WR240E18
WR240E36
WR240E54
WR240E72
WR300E18
WR300E36
WR300E54
WR300E72

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.

1

1

2

EER

180 11.9 12.7
240 11.0 11.3
300 10.0 10.6

180 11.9 12.7
240 11.0 11.3
300 10.0 10.6

180 11.9 12.7
180 11.9 12.7
178 11.7 12.5
178 11.7 12.5
240 11.0 11.3
240 11.0 11.3
238 10.8 11.1
238 10.8 11.1
300 10.0 10.6
300 10.0 10.6
298 9.8 10.4
298 9.8 10.4

IPLV

SOUND POWER (db 10

Octave Band Centerline Frequency (Hz)

-12

TABLE 3: GAS HEAT RATINGS

3

MODEL MBH INPUT MBH OUTPUT

WR180N/S24
WR180N/S32

WR240N/S24
WR240N/S32

WR300N/S24
WR300N/S32

NOTE:All gas units are two-stage heating.

First stage is 50% of total.
S.S.E. = Steady State Efficiency (80%) - output divided by input.

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.

If there are VAV boxes present in the duct sys­tem, the boxes must be driven to th e full-open
position using a customer-supplied power
source to assure adequate airflow across elec­tric heating elements or gas heat exchanger
tubes.

Watts)

SWL

dB(A)

300 240
400 320
300 240
400 320
300 240
400 320

dB(A)

@

10Ft.

2

Unitary Products Group 11

262292-YTG-B-0107

TABLE 4: COOLING CAPACITIES FOR WR180

Air on Evaporator Coil

CFM

WB
(°F)

Total

Cap.

(MBH)

2

Total

1

Input

(kW)

90 85 80 75 70 65 90 85 80 75 70 65

75°F 85°F

Sensible Capacity (MBH)

Return Dry Bulb (°F)

77 21710.874715945301621011.8807358432814

3750

72 200 10.5 115 100 86 72 57 43 193 11.6 114 99 85 70 55 40
67 184 10.2 156 128 113 99 84 70 177 11.3 148 126 111 96 82 67
62 165 9.9 163 153 132 117 103 88 160 11.0 159 152 130 116 101 86
77 227 11.0 100 83 66 48 31 14 219 11.9 99 81 64 47 29 12

4500

72 210 10.6 130 113 96 78 61 44 202 11.7 128 111 93 76 59 41
67 192 10.3 161 143 126 108 91 74 185 11.4 158 140 123 106 88 71
62 172 10.0 171 164 147 129 112 95 167 11.1 166 162 144 127 109 92
57 171 10.0

171 171 152 135 118 100 166 11.1 166 166 150 132 115 97

77 237 11.1 127 95 72 52 32 11 228 12.1 117 90 70 50 30 10

5250

72 219 10.8 146 126 105 85 65 45 210 11.8 143 123 102 82 62 42
67 201 10.4 165 159 139 118 98 78 192 11.5 168 155 135 115 94 74
62 180 10.1 178 175 161 141 121 101 174 11.3 173 171 158 138 118 98
57 178 10.1

178 178 168 148 127 107 173 11.2 173 173 164 144 124 104

77 247 11.2 153 107 79 56 32 9 237 12.2 136 99 76 53 31 8

6000

72 228 10.9 161 138 115 92 69 45 219 11.9 157 134 111 88 66 43
67 209 10.5 170 170 151 128 105 82 200 11.6 178 169 146 124 101 78
62 187 10.2 186 186 176 153 130 107 181 11.4 180 180 172 149 126 103
57 186 10.2

186 186 183 160 137 114 180 11.3 180 180 178 155 133 110

72 236 10.9 176 150 125 99 73 47 226 11.9 171 145 120 95 70 44

6750

67 217 10.6 184 187 164 138 112 86 207 11.7 185 181 158 133 108 82
62 194 10.3 193 193 188 162 136 110 187 11.4 186 186 182 157 131 106
57 193 10.2

193 193 191 166 140 114 186 11.3 186 186 185 160 135 109

72 245 10.9 191 163 134 106 77 49 233 12.0 184 157 129 101 74 46

7500

67 224 10.6 199 199 177 148 120 91 213 11.7 192 192 170 142 114 87
62 201 10.3 199 199 199 171 142 114 193 11.4 192 192 192 164 137 109
57 200 10.3

200 200 200 171 143 114 192 11.4 192 192 192 165 137 109

95°F 105°F

77 20312.887725742271219514.37769533822 6

3750

72 186 12.6 113 98 83 68 53 38 179 14.1 111 96 80 64 49 33
67 170 12.4 139 124 109 94 79 64 164 13.9 144 122 107 91 75 60
62 155 12.1

155 152 129 114 99 84 151 13.7 148 149 125 109 94 78

77 21112.997806245271020214.49577594123 5

4500

72 194 12.7 126 109 91 74 56 39 186 14.2 124 106 88 70 52 34
67 177 12.5 155 137 120 103 85 68 170 14.0 153 135 117 99 81 63
62 161 12.3
57 161 12.2

161 159 142 124 107 89 157 13.8 155 155 137 119 101 83
161 161 147 129 112 95 156 13.7 156 156 141 123 105 87

77 219 13.0 108 88 68 48 28 8 209 14.5 113 84 64 44 23 3

5250

72 202 12.8 139 119 99 79 59 39 192 14.3 136 116 96 75 55 35
67 184 12.6 171 151 131 111 91 71 175 14.1 162 148 127 107 87 66
62 168 12.4
57 168 12.3

168 167 155 135 115 95 162 13.8 162 161 149 129 109 88
168 168 160 140 120 100 162 13.8 162 162 154 134 113 93

77 228 13.2 119 96 74 51 29 6 216 14.6 131 92 69 47 24 1

6000

72 209 13.0 153 130 108 85 63 40 199 14.4 149 126 104 81 58 35
67 191 12.7 186 164 141 119 96 74 181 14.2 167 161 138 115 92 70
62 174 12.5
57 174 12.4

174 174 167 145 122 100 168 13.9 167 167 162 139 116 94
174 174 173 151 128 106 167 13.9 167 167 166 144 121 98

72 216 13.0 165 140 116 91 66 42 204 14.4 160 136 111 86 62 37

6750

67 197 12.8 186 174 152 127 103 78 187 14.2 172 169 148 123 99 74
62 179 12.5
57 179 12.5

179 179 176 151 127 102 172 13.9 172 172 169 145 120 95
179 179 179 154 130 105 172 13.9 172 172 172 147 122 98

72 222 13.0 177 151 124 97 70 43 210 14.4 172 145 119 92 65 39

7500

67 203 12.8 185 185 163 136 109 82 192 14.2 177 177 158 131 105 78
62 185 12.5
57 185 12.5

185 185 185 158 131 104 177 13.9 177 177 177 150 124 97
185 185 185 158 131 104 177 13.9 177 177 177 150 123 97

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.

Temperature of Air on Condenser Coil

*

Total

Cap.

(MBH)

2

Total

1

Input
(kW)

Sensible Capacity (MBH)

Return Dry Bulb (°F)

*

All Sensible Capacity

12 Unitary Products Group

262292-YTG-B-0107

TABLE 4: COOLING CAPACITIES FOR WR180 (CONTINUED)

Air on Evaporator Coil

CFM

WB
(°F)

Total

Cap.

(MBH)

2

Total

1

Input

(kW)

90 85 80 75 70 65 90 85 80 75 70 65

115°F 125°F

Sensible Capacity (MBH)

Return Dry Bulb (°F)

77 18715.87366503417 - 17917.37460473013 -

3750

72 172 15.6 110 93 77 61 44 28 165 17.1 108 91 74 57 40 23
67 157 15.4 146 120 104 88 71 55 151 16.9 142 118 101 84 67 50
62 147 15.2

147 147 121 104 88 72 143 16.7 145 143 117 100 83 66

77 19315.99274553618 - 18417.39270513213 -

4500

72 177 15.7 122 103 84 66 47 29 169 17.1 119 100 81 62 43 24
67 162 15.5 151 133 114 95 77 58 155 16.9 146 130 111 92 73 54
62 152 15.2 151 151 133 114 96 77 147 16.7
57 151 15.2

151 151 136 117 99 80 146 16.6 146 146 130 111 92 73

77 198 15.9 111 81 60 39 18 - 188 17.4 111 80 56 35 14 -

5250

72 183 15.7 133 113 92 71 51 30 173 17.2 130 109 88 67 46 25
67 167 15.5 156 145 124 103 83 62 159 17.0 150 142 121 100 79 58
62 156 15.3
57 156 15.2

156 156 144 124 103 82 151 16.8 149 149 139 118 97 76
156 156 148 127 106 86 150 16.7 150 150 141 120 99 78

77 204 16.0 130 88 65 42 19 - 193 17.4 130 90 60 37 14 -

6000

72 188 15.8 145 122 99 77 54 31 177 17.2 142 118 95 72 49 26
67 172 15.6 160 157 134 111 88 66 162 17.0 153 147 131 108 84 61
62 161 15.4 160 160 156 133 110 87 154 16.8 153 153 151 127 104 81
57 160 15.3

160 160 160 137 114 91 154 16.7 154 154 153 130 107 84

72 193 15.8 156 131 106 82 57 32 182 17.2 151 127 102 77 52 28

6750

67 176 15.6 165 163 144 119 94 69 166 17.0 157 154 139 115 90 65
62 165 15.4
57 165 15.3

165 165 163 138 113 89 158 16.8 157 157 156 131 107 82
165 165 164 140 115 90 157 16.7 157 157 157 133 107 83

72 198 15.8 167 140 113 87 60 34 186 17.1 161 135 108 82 55 29

7500

67 181 15.6 169 169 153 126 100 73 170 16.9 161 161 148 122 95 69
62 169 15.3
57 169 15.2

169 169 169 143 116 90 162 16.7 161 161 161 135 109 82
169 169 169 143 116 89 161 16.6 161 161 161 136 108 82

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.

Temperature of Air on Condenser Coil

*

Total

Cap.

(MBH)

2

Total

1

Input
(kW)

Sensible Capacity (MBH)

Return Dry Bulb (°F)

147 146 128 109 90 71

*

All Sensible Capacity

Unitary Products Group 13

262292-YTG-B-0107

TABLE 5: COOLING CAPACITIES FOR WR240

Air on Evaporator Coil

CFM

WB
(°F)

Total

Cap.

(MBH)

2

Total

1

Input

(kW)

90 85 80 75 70 65 90 85 80 75 70 65

75°F 85°F

Sensible Capacity (MBH)

Return Dry Bulb (°F)

77 287 15.1 117 99 80 62 43 25 278 16.4 112 96 77 58 39 20

5000

72 263 14.6 152 134 115 96 78 59 254 16.0 150 131 112 93 74 55
67 238 14.2 187 168 150 131 113 94 230 15.6 187 165 146 127 108 89
62 219 13.8 215 198 176 157 139 120 212 15.3 210 198 172 153 134 115
77 304 15.2 133 111 89 67 45 23 294 16.5 130 108 85 63 41 19

6000

72 278 14.8 171 150 128 106 84 62 269 16.1 169 146 124 102 79 57
67 252 14.3 210 188 166 144 122 100 243 15.7 207 185 162 140 118 95
62 232 14.0 228 217 195 173 151 129 224 15.4 222 214 191 169 147 124
57 229 13.8

229 227 205 183 161 139 222 15.2 222 221 199 177 154 132

77 320 15.4 149 123 98 73 47 22 310 16.7 148 120 94 68 43 17

7000

72 293 14.9 190 165 140 115 90 64 283 16.3 187 162 136 111 85 59
67 265 14.4 233 207 182 157 132 107 256 15.9 226 204 179 153 127 102
62 244 14.1 241 235 214 189 164 138 236 15.5 234 230 210 185 159 134
57 241 13.9

241 240 225 200 175 149 234 15.3 234 234 219 193 167 142

77 337 15.5 165 135 107 78 50 21 325 16.8 167 131 102 74 45 16

8000

72 308 15.1 210 181 153 124 96 67 297 16.4 206 178 149 120 91 62
67 279 14.6 254 227 199 170 142 113 269 16.0 246 224 195 166 137 108
62 257 14.2 254 254 233 205 176 148 248 15.7 246 246 230 201 172 143
57 254 14.1

254 254 245 217 188 160 246 15.5 246 246 239 210 181 152

72 302 15.0 213 184 155 126 97 69 291 16.4 209 180 151 122 93 64

8500

67 274 14.5 249 230 202 173 144 115 264 16.0 241 227 198 169 140 110
62 252 14.2 249 249 239 210 181 152 243 15.6 241 241 233 204 174 145
57 249 14.0

249 249 245 216 187 158 241 15.4 241 241 237 208 179 150

72 296 14.9 216 187 157 128 99 70 285 16.3 212 183 153 124 95 65

9000

67 268 14.4 244 224 205 176 147 118 258 15.9 236 231 201 172 142 113
62 247 14.1 244 244 244 215 186 157 238 15.6 236 236 236 207 177 148
57 244 13.9

244 244 244 215 186 157 236 15.3 236 236 236 207 177 148

95°F 105°F

77 270 17.6 105 93 73 54 35 15 255 19.4 103 89 70 50 31 11

5000

72 246 17.3 147 127 108 89 69 50 234 19.1 143 124 104 85 65 46
67 222 17.0 188 162 143 123 104 84 212 18.8 183 158 139 119 100 80
62 206 16.7 205 197 169 149 130 111 195 18.5 192 190 164 144 125 105
77 285 17.8 127 104 82 59 36 14 269 19.6 127 101 78 55 32 9

6000

72 259 17.5 166 143 120 97 75 52 246 19.3 162 139 116 93 70 48
67 234 17.2 204 181 159 136 113 91 224 19.0 197 177 155 132 109 86
62 217 16.8 216 210 188 165 142 120 206 18.7 204 202 183 160 137 114
57 216 16.6

216 216 193 170 147 125 205 18.1 205 205 185 162 139 117

77 299 17.9 149 116 90 64 38 12 283 19.8 150 112 86 59 33 7

7000

72 273 17.6 184 158 132 106 80 54 259 19.5 180 154 128 102 76 49
67 247 17.3 220 201 175 149 123 97 236 19.2 211 197 170 144 118 92
62 228 17.0 227 224 207 181 155 129 217 18.8 216 214 201 175 149 123
57 227 16.7

227 227 212 186 160 134 216 18.3 216 216 204 178 152 125

77 314 18.1 171 128 98 69 40 10 297 19.9 173 123 94 64 34 5

8000

72 286 17.8 203 174 145 115 86 56 272 19.6 199 169 140 110 81 51
67 259 17.5 236 220 191 162 132 103 248 19.3 225 216 186 157 127 97
62 239 17.1 238 238 226 196 167 138 228 19.0 226 226 220 190 161 131
57 238 16.9

238 238 232 203 173 144 226 18.4 226 226 223 193 164 134

72 280 17.7 206 177 147 117 88 58 266 19.6 202 172 143 113 83 53

8500

67 253 17.4 232 224 194 165 135 105 242 19.3 220 212 190 160 130 100
62 234 17.1 233 233 227 197 168 138 223 18.9 222 222 218 188 159 129
57 233 16.8

233 233 230 200 171 141 222 18.4 222 222 220 190 160 130

72 274 17.7 209 179 150 120 90 60 261 19.5 206 175 145 115 85 55

9000

67 248 17.4 227 227 197 168 138 108 237 19.2 216 209 193 163 133 103
62 229 17.1 228 228 228 198 168 139 218 18.9 217 217 217 186 156 126
57 228 16.8

228 228 228 198 169 139 217 18.3 217 217 217 187 157 126

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.

Temperature of Air on Condenser Coil

*

Total

Cap.

(MBH)

2

Total

1

Input
(kW)

Sensible Capacity (MBH)

Return Dry Bulb (°F)

*

All Sensible Capacity

14 Unitary Products Group

262292-YTG-B-0107

TABLE 5: COOLING CAPACITIES FOR WR240 (CONTINUED)

Air on Evaporator Coil

CFM

WB
(°F)

Total

Cap.

(MBH)

2

Total

1

Input

(kW)

90 85 80 75 70 65 90 85 80 75 70 65

115°F 125°F

Sensible Capacity (MBH)

Return Dry Bulb (°F)

77 240 21.3 101 86 66 46 27 - 225 23.1 100 81 63 43 23 -

5000

72 221 21.0 140 120 101 81 61 42 208 22.8 136 117 97 77 57 37
67 202 20.7 179 155 135 115 96 76 192 22.5 174 151 131 111 92 72
62 185 20.4 184 184 159 139 120 100 175 22.2
77 253 21.4 126 97 74 51 28 - 238 23.3 126 93 70 47 23 -

6000

72 233 21.1 158 135 112 89 66 43 220 23.0 154 131 108 85 62 38
67 214 20.8 190 173 150 127 104 81 203 22.7 183 169 146 123 100 77
62 195 20.5 194 194 177 154 131 108 185 22.3 184 184 172 149 126 103
57 194 19.7

194 194 177 154 131 108 184 21.2 184 184 170 147 123 100

77 267 21.6 151 108 81 55 29 - 250 23.4 151 105 77 50 24 -

7000

72 246 21.3 176 150 124 97 71 44 232 23.1 172 146 119 93 66 39
67 225 21.0 202 192 166 139 113 87 214 22.8 192 188 161 135 108 82
62 206 20.7 205 205 196 169 143 116 195 22.5 193 194 190 163 137 110
57 205 19.8

205 205 196 169 143 117 194 21.4 194 194 187 161 134 108

77 280 21.8 176 119 89 59 29 - 263 23.6 176 117 84 54 24 -

8000

72 258 21.5 195 165 135 105 76 46 244 23.3 190 160 130 100 70 41
67 236 21.1 213 211 181 152 122 92 225 23.0 204 204 177 147 117 87
62 216 20.8 215 215 214 184 154 124 205 22.7 204 204 205 178 148 118
57 215 20.0

215 215 214 184 154 125 204 21.5 204 204 204 175 145 115

72 252 21.4 198 168 138 108 78 48 238 23.2 194 164 134 103 73 43

8500

67 231 21.1 209 201 185 155 125 95 220 22.9 198 189 181 151 120 90
62 211 20.8 210 210 209 179 149 119 200 22.6 199 199 200 170 140 110
57 210 19.9

210 210 210 180 149 119 199 21.5 199 199 199 169 139 108

72 247 21.3 202 172 141 111 80 50 233 23.1 194 168 137 106 76 45

9000

67 226 21.0 205 190 190 159 129 98 215 22.8 194 171 186 155 124 94
62 206 20.7 205 205 205 175 144 114 195 22.5 194 194 194 163 132 101
57 205 19.8 205 205 205 175 144 114 194 21.4

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.

Temperature of Air on Condenser Coil

*

Total

Cap.

(MBH)

2

Total

1

Input
(kW)

Sensible Capacity (MBH)

Return Dry Bulb (°F)

175 174 154 134 115 95

194 194 194 163 132 102

*

All Sensible Capacity

Unitary Products Group 15

262292-YTG-B-0107

TABLE 6: COOLING CAPACITIES FOR WR300

Air on Evaporator Coil

CFM

WB
(°F)

Total

Cap.

(MBH)

2

Total

1

Input

(kW)

90 85 80 75 70 65 90 85 80 75 70 65

75°F 85°F

Sensible Capacity (MBH)

Return Dry Bulb (°F)

77 331 17.7 186 162 137 113 88 64 322 20.0 168 144 119 95 70 46

6250

72 315 17.2 212 187 163 138 114 90 303 19.4 199 175 151 126 102 78
67 299 16.7 237 213 188 164 140 115 284 18.8 231 206 182 158 133 109
62 273 16.3 265 257 231 207 182 158 259 18.4 253 249 223 198 174 149
77 380 20.7 217 189 160 131 102 73 371 23.3 197 168 139 110 82 53

7500

72 362 20.1 247 218 189 161 132 103 349 22.6 234 205 176 147 118 89
67 343 19.5 277 248 219 190 161 133 327 21.9 271 242 213 184 155 126
62 313 19.0 305 299 269 240 211 182 298 21.4 292 289 260 231 202 173
57 305 18.5

305 305 288 259 230 201 292 20.9 292 292 279 250 221 192

77 378 21.0 220 190 161 131 102 73 370 23.4 200 170 141 111 82 52

7750

72 360 20.3 249 220 191 161 132 102 348 22.7 237 207 178 148 119 89
67 342 19.7 279 250 221 191 162 132 326 22.0 274 245 215 186 156 127
62 312 19.2 304 301 270 241 212 182 298 21.5 292 290 263 233 204 174
57 304 18.7

304 304 290 260 231 201 292 21.0 292 292 282 253 223 194

77 376 21.2 222 192 162 132 102 72 370 23.6 203 172 142 112 82 52

8000

72 358 20.6 252 222 192 162 132 102 348 22.9 240 210 180 150 119 89
67 340 19.9 282 252 222 192 162 132 326 22.1 278 248 217 187 157 127
62 310 19.4 303 303 272 242 212 182 297 21.7 292 292 266 236 205 175
57 303 18.9

303 303 291 261 231 201 292 21.1 292 292 285 255 225 195

72 356 20.6 259 228 197 166 135 104 347 23.0 248 216 185 154 123 92

8650

67 338 20.0 290 259 228 197 166 135 326 22.3 284 255 224 193 162 131
62 309 19.4 301 300 279 248 217 187 297 21.8 291 291 274 243 211 180
57 301 18.9

301 301 295 264 233 202 291 21.3 291 291 288 257 226 195

72 354 20.7 266 234 202 170 139 107 347 23.1 255 223 191 159 126 94

9300

67 336 20.1 299 265 234 202 170 138 325 22.4 291 263 230 198 166 134
62 307 19.5 299 299 286 255 223 191 296 21.9 291 291 282 250 217 185
57 299 19.0

299 299 299 267 235 203 291 21.4 291 291 291 259 227 194

95°F 105°F

77 313 22.2 150 125 101 77 53 28 297 24.4 139 117 92 68 44 20

6250

72 291 21.5 187 163 138 114 90 66 276 23.7 180 155 131 107 83 59
67 268 20.8 200 200 176 151 127 103 256 23.1 220 194 170 146 122 98
62 245 20.5 241 241 214 190 165 141 232 22.6 230 225 199 175 151 127
77 362 25.8 177 148 119 90 61 32 343 28.3 166 137 109 80 51 22

7500

72 336 25.0 220 192 163 134 105 76 319 27.6 212 183 154 125 97 68
67 310 24.2 264 235 206 178 149 120 295 26.8 257 229 200 171 142 113
62 283 23.8 279 279 251 222 194 165 268 26.3 266 262 234 205 177 148
57 279 23.2

279 279 270 241 213 184 266 25.8 266 266 256 227 198 170

77 362 25.9 180 150 121 91 61 32 343 28.5 171 140 110 81 51 22

7750

72 337 25.1 224 195 165 136 106 76 319 27.7 216 186 156 127 97 68
67 311 24.3 269 239 210 180 150 121 296 26.9 260 232 203 173 144 114
62 283 23.9 280 280 255 226 196 166 268 26.4 266 264 238 208 179 149
57 280 23.3

280 280 275 245 215 186 266 25.9 266 266 260 230 201 171

77 363 26.0 183 153 123 92 62 31 343 28.6 176 142 112 82 51 21

8000

72 338 25.2 229 198 168 137 107 77 320 27.8 219 189 159 129 98 68
67 312 24.3 274 243 213 183 152 122 296 27.1 263 236 206 175 145 115
62 284 23.9 281 281 259 229 198 168 269 26.6 266 266 241 211 181 150
57 281 23.4

281 281 279 248 218 188 266 26.1 266 266 264 233 203 173

72 339 25.3 236 205 173 142 111 79 321 27.9 227 196 165 133 102 71

8650

67 313 24.5 278 252 220 189 157 126 297 27.1 266 245 213 182 151 119
62 285 24.1 282 282 268 237 205 174 270 26.6 267 267 250 219 187 156
57 282 23.6

282 282 281 249 218 187 267 26.1 267 267 266 235 203 172

72 340 25.5 244 211 179 147 114 82 322 28.0 235 203 170 138 106 73

9300

67 314 24.7 283 260 227 195 163 130 298 27.2 268 253 221 189 156 124
62 286 24.3 283 283 277 244 212 180 271 26.7 268 268 259 226 194 162
57 283 23.8

283 283 283 250 218 185 268 26.2 268 268 268 236 203 171

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

Temperature of Air on Condenser Coil

*

Total

Cap.

(MBH)

2

Total

1

Input
(kW)

Sensible Capacity (MBH)

Return Dry Bulb (°F)

*

16 Unitary Products Group

262292-YTG-B-0107

TABLE 6: COOLING CAPACITIES FOR WR300 (CONTINUED)

Air on Evaporator Coil

CFM

WB
(°F)

Total

Cap.

(MBH)

2

Total

1

Input

(kW)

90 85 80 75 70 65 90 85 80 75 70 65

115°F 125°F

Sensible Capacity (MBH)

Return Dry Bulb (°F)

77 281 26.6 128 108 84 60 36 12 265 28.8 122 99 75 51 27 -

6250

72 262 26.0 172 148 124 100 76 52 248 28.2 165 141 117 93 69 45
67 243 25.3 216 188 164 140 116 92 230 27.5 207 183 159 135 111 87
62 220 24.8 218 209 185 161 137 113 208 26.9 207 193 170 146 122 98
77 324 30.9 155 127 98 70 41 12 305 33.5 149 116 88 59 31 -

7500

72 302 30.2 203 174 146 117 88 60 285 32.8 194 166 137 109 80 52
67 280 29.4 250 222 193 164 136 107 265 32.0 239 215 186 158 129 101
62 254 28.8 252 245 217 188 159 131 239 31.3
57 252 28.4

252 252 241 213 184 155 239 30.9 239 239 227 198 170 141

77 324 31.1 162 129 100 70 41 11 304 33.7 157 118 89 60 31 -

7750

72 302 30.4 207 177 148 118 89 60 284 33.0 198 168 139 110 80 51
67 280 29.6 251 225 196 166 137 108 264 32.3 238 218 189 160 130 101
62 254 29.0 252 249 220 190 161 132 239 31.6 238 233 202 173 143 114
57 252 28.5

252 252 245 215 186 157 238 31.1 238 238 230 201 171 142

77 323 31.3 168 131 101 71 41 11 303 34.0 164 120 90 60 30 -

8000

72 302 30.5 210 180 150 120 89 59 284 33.2 201 171 141 111 81 51
67 280 29.8 252 229 199 168 138 108 264 32.5 238 222 191 161 131 101
62 253 29.2 252 252 223 193 163 132 238 31.8
57 252 28.7

252 252 248 218 188 158 238 31.4 238 238 233 203 173 143

72 303 30.5 218 187 156 125 93 62 284 33.1 209 178 147 116 85 53

8650

67 281 29.8 253 238 206 175 144 113 265 32.4 239 231 200 168 137 106
62 254 29.2 253 253 232 201 169 138 239 31.7 239 239 214 182 151 120
57 253 28.7

253 253 251 220 189 157 239 31.3 239 239 236 205 174 143

72 304 30.5 226 194 162 129 97 65 285 33.0 218 185 153 121 89 56

9300

67 282 29.8 254 247 214 182 150 117 265 32.3 239 239 208 176 143 111
62 255 29.1 254 254 241 208 176 144 240 31.6 239 239 222 190 158 126
57 254 28.7

254 254 254 221 189 157 239 31.2 239 239 239 207 175 143

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.

Temperature of Air on Condenser Coil

*

Total

Cap.

(MBH)

2

Total

1

Input
(kW)

Sensible Capacity (MBH)

Return Dry Bulb (°F)

239 228 199 171 142 114

238 238 205 175 145 115

*

All Sensible Capacity

Unitary Products Group 17

262292-YTG-B-0107

TABLE 7: COOLING CAPACITIES FOR WR180 (ALTERNATE REHEAT MODE)

Air on Evaporator Coil

CFM

WB
(°F)

Total

Cap.

(MBH)

Total

1

Input
(kW)

75°F 85°F

2

Sensible Capacity (MBH)

90 85 80 75 70 65 90 85 80 75 70 65

67 88 10.6 232119161411 80 11.2 1816141210 9

4500

62 79 10.1 444239373532 72 10.8 353432302826
57 70 9.9 484644413936 66 10.6 393735343230
67 90 10.7 322925221915 82 11.3 262421181512

5250

62 81 10.2 595653494643 74 10.8 535047444139
57 72 10.0 615958555148 68 10.7 555453504744
67 92 10.8 403632282319 85 11.3 353127242016

6000

62 82 10.3 737066615753 76 10.9 706662585551
57 73 10.0

73 73 72 68 64 60 70 10.7 70 70 70 66 62 58

67 95 10.8 494439332823 87 11.3 433834292520

6750

62 85 10.2 757472666156 78 10.9 727068635955
57 75 10.0

75 75 75 70 65 59 72 10.7 72 72 72 67 63 58

67 98 10.7 585246393327 90 11.3 514540342924

7500

62 88 10.2 787878716559 81 10.9 747474686358
57 78 10.0

78 78 78 72 65 59 74 10.7 74 74 74 68 63 58

95°F 105°F

67 71 11.8 12 11 10 8 7 6 65 12.5 8 8 7 6 5 4

4500

62 64 11.4 272524232220 60 12.1 212019181716
57 61 11.3 302927262524 57 12.1 232221201918
67 74 11.8 21 19 16 14 12 10 69 12.6 16 15 13 11 9 8

5250

62 68 11.5 464441393735 63 12.2 414038363433
57 64 11.4 484847454340 60 12.1 434242403836

6000

6750

7500

67 78 11.9 292623201714 72 12.6 242219161411
62 71 11.5 656259565249 66 12.2 626057545249
57 67 11.4

67 67 67 63 60 57 63 12.1 63 63 62 60 57 55
67 79 11.9 363229252117 73 12.6 312824211815
62 72 11.5 676664605753 66 12.2 636261575451
57 68 11.4

68 68 68 64 60 57 64 12.1 64 64 63 60 57 54
67 81 11.9 433934302521 74 12.6 373430262218
62 73 11.5 707070656156 67 12.2 646464605753
57 70 11.4

70 70 70 65 61 56 64 12.1 64 64 64 61 57 53

115°F 125°F

4500

67 60 13.3 5 4 4 3 3 2 54 14.0 - - - - - ­62 55 12.8 15 14 14 13 13 12 50 13.5 9 9 9 8 8 8
57 53 12.8 16 15 15 14 14 13 50 13.5 9 8 8 8 8 8

5250

67 63 13.3 12 11 9 8 7 6 57 14.1 8 7 6 5 4 3
62 58 12.9 373635333231 53 13.6 333131302929
57 56 12.8 373736353433 52 13.6 313131303029

6000

6750

7500

67 66 13.4 19 17 15 13 11 9 60 14.1 14 13 11 9 8 6
62 60 12.9 595755535149 55 13.6 555453525049
57 59 12.9

59 59 58 56 54 52 54 13.6 54 54 54 53 51 50
67 66 13.4 252320181512 59 14.1 201816141210
62 61 12.9 595857545249 55 13.6 545453524947
57 59 12.9

59 59 59 56 53 51 54 13.6 54 54 54 52 50 48
67 66 13.4 322825221916 59 14.1 262321181613
62 61 12.9 595959565349 55 13.6 545454514846
57 59 12.9

59 59 59 56 53 50 54 13.6 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

Temperature of Air on Condenser Coil

*

Return Dry Bulb (°F)

Total
Cap.
(MBH)

2

Total

1

Input

Sensible Capacity (MBH)

Return Dry Bulb (°F)

(kW)

*

18 Unitary Products Group

262292-YTG-B-0107

TABLE 8: COOLING CAPACITIES FOR WR240 (ALTERNATE REHEAT MODE)

Air on Evaporator Coil

CFM

6000

WB
(°F)

67 100 15.9 20 18 16 14 12 10 94 16.6 13 12 11 9 8 7
62 93 15.1 444240383635 86 15.9 302927262523

Total

Cap.

(MBH)

Total

1

Input
(kW)

75°F 85°F

2

Sensible Capacity (MBH)

90 85 80 75 70 65 90 85 80 75 70 65

57 83 15.1 504846454341 77 15.8 343332302928

7000

67 109 15.8 31 28 24 21 18 15 103 16.5 25 23 20 18 15 12
62 102 15.1 686562595653 95 15.8 575452494744
57 90 15.0 747471686461 85 15.7 636360585552

8000

8450

8900

67 119 15.7 42 37 33 29 24 20 112 16.4 38 34 30 26 22 18
62 110 15.0 92 88 83 79 75 70 103 15.8 84 80 76 72 69 65
57 98 14.9

98 98 95 91 86 82 93 15.7 93 93 89 85 81 77
67 113 15.7 42 38 33 29 25 21 107 16.4 39 35 31 27 23 19
62 105 15.0 888885807672 98 15.8 848480767268
57 93 14.9

93 93 92 87 83 79 88 15.7 88 88 86 82 78 75
67 107 15.7 42 38 34 30 26 22 101 16.4 40 36 32 29 25 21
62 99 14.9 888886827873 93 15.8 848483797571
57 88 14.9

88 88 88 84 80 76 84 15.7 84 84 84 80 76 72

95°F 105°F

6000

67 87 17.3 7 6 5 5 4 3 77 18.2 3 3 3 2 2 2
62 79 16.7 16 15 14 14 13 12 68 17.7 8 7 7 7 6 6
57 72 16.5 18 18 17 16 16 15 63 17.4 9 9 9 8 8 7

7000

67 96 17.2 20 18 16 14 12 10 86 18.2 15 14 12 11 9 7
62 88 16.6 464442403835 76 17.7 363533323028
57 79 16.4 535250484644 70 17.4 434341403836

8000

8450

8900

67 106 17.2 343027232016 94 18.2 282522191613
62 96 16.6 767369666259 84 17.7 656259575451
57 87 16.4

87 86 83 79 76 72 78 17.4 78 77 74 71 68 65
67 101 17.2 363229252218 90 18.1 292623201714
62 92 16.6 787875716864 80 17.6 686663605754
57 83 16.4

83 83 81 77 74 70 74 17.3 74 74 72 69 67 64
67 96 17.2 383531272420 86 18.1 302724211916
62 87 16.6 797979757267 76 17.6 716966636057
57 79 16.4

79 79 79 75 72 68 71 17.3 71 71 71 68 65 62

115°F 125°F

6000

67 67 19.1 - - - - - - 57 20.0 - - - - - ­62 57 18.7 - - - - - - 46 19.7 - - - - - ­57 54 18.3 - - - - - - 46 19.2 - - - - - -

7000

67 75 19.1 11 10 8 7 6 5 64 20.1 6 5 5 4 3 3
62 64 18.7 272625242321 52 19.7 181716161514
57 61 18.3 343332313029 52 19.2 252424232222

8000

8450

8900

67 83 19.2 21 19 17 15 13 10 72 20.1 15 14 12 11 9 7
62 71 18.7 545250474543 58 19.8 434140383735
57 68 18.3

68 67 65 62 60 58 58 19.3 58 57 56 54 52 51
67 80 19.1 22 19 17 15 13 11 70 20.0 14 13 12 10 9 7
62 68 18.6 555351484644 56 19.7 414038373634
57 65 18.2

65 65 64 61 59 57 56 19.2 56 56 55 54 52 51
67 77 19.0 22 20 18 16 14 12 67 19.9 13 12 11 10 9 7
62 65 18.5 555351494745 54 19.5 403837363533
57 63 18.2

63 63 63 61 59 56 54 19.0 54 54 54 53 52 51

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.

Temperature of Air on Condenser Coil

*

Return Dry Bulb (°F)

Total
Cap.
(MBH)

2

Total

1

Input

Sensible Capacity (MBH)

Return Dry Bulb (°F)

(kW)

*

All Sensible Capacity

Unitary Products Group 19

262292-YTG-B-0107

TABLE 9: COOLING CAPACITIES FOR WR300 (ALTERNATE REHEAT MODE)

Air on Evaporator Coil

CFM

7500

WB
(°F)

67 140 21.1 19 17 16 14 12 10 129 22.3 12 11 9 8 7 6
62 128 19.9 88 86 84 82 80 78 119 21.1 68 67 66 65 64 62

Total

Cap.

(MBH)

Total

1

Input
(kW)

75°F 85°F

2

Sensible Capacity (MBH)

90 85 80 75 70 65 90 85 80 75 70 65

57 117 18.8 104 102 100 98 96 94 113 20.3 81 80 79 78 77 76

7750

67 139 21.2 21 19 17 15 12 10 128 22.4 13 12 10 9 8 7
62 127 20.1 88 86 84 82 80 78 118 21.2 75 74 73 71 70 69
57 116 18.9 104 102 100 98 96 94 112 20.4 90 88 87 86 84 83

8000

67 138 21.3 22 20 18 15 13 11 127 22.5 14 13 11 10 9 7
62 126 20.2 88 86 84 82 80 78 117 21.3 82 81 79 78 76 75
57 115 19.0 104 102 100 98 96 93 111 20.4 98 96 95 93 92 91

8500

67 138 21.4 24 22 19 17 15 12 127 22.5 16 15 13 12 10 9
62 125 20.2 98 95 92 90 88 85 117 21.3 95 94 92 90 89 87
57 115 19.1 109 108 107 105 102 100 111 20.5 104 104 103 101 100 98

9000

67 137 21.4 26 23 21 19 16 14 127 22.5 18 17 15 13 12 10
62 125 20.2 107 104 100 98 96 93 117 21.3 108 107 105 103 102 100
57 114 19.1

114 114 114 112 109 107 111 20.5 111 111 111 109 107 106

95°F 105°F

7500

67 118 23.4 443322 108 24.8 332211
62 110 22.3 49 48 48 48 47 47 101 23.6 31 31 30 30 30 29
57 108 21.7 59 59 58 58 57 57 98 23.1 37 37 36 36 36 35

7750

67 117 23.5 554433 107 24.9 544322
62 109 22.3 62 62 61 61 60 60 100 23.7 51 50 50 49 48 48
57 107 21.8 75 75 74 73 73 72 97 23.2 60 59 59 58 58 57

8000

67 116 23.6 665443 106 24.9 665433
62 108 22.4 75 75 74 73 73 72 99 23.8 70 69 69 68 67 66
57 106 21.9 91 90 90 89 89 88 96 23.3 82 82 81 80 79 79

8500

67 117 23.6 987655 107 24.9 876543
62 109 22.4 93 92 92 91 90 89 100 23.8 79 79 78 77 76 75
57 107 21.9 99 99 99 98 97 96 97 23.3 87 87 86 85 84 83

9000

67 118 23.6 11 10 9 8 7 6 108 24.9 9 8 7 6 5 4
62 110 22.4
57 108 21.9

110 108 107 106 105 104 101 23.8 89 88 87 86 85 84
108 108 108 107 106 105 98 23.3 92 92 91 90 89 88

115°F 125°F

7500

67 97 26.2------ 87 27.6-----­62 91 25.0141313121212 82 26.4 -----­57 88 24.6151515141413 77 26.0 ------

7750

67 97 26.2 4 4 3 2 2 1 87 27.6 4 3 2 2 - ­62 91 25.0 39 39 38 37 37 36 82 26.4 28 27 27 26 25 24
57 87 24.6 45 44 43 43 42 41 77 26.0 29 29 28 27 27 26

8000

67 96 26.3 7 6 5 4 3 2 86 27.6 7 6 5 4 - ­62 90 25.1 65 64 63 62 62 61 81 26.5 60 59 58 57 56 55
57 86 24.7 74 73 72 71 70 69 76 26.1 65 64 63 62 61 60

8500

67 98 26.3 7 6 5 4 3 2 88 27.7 6 5 4 3 - ­62 92 25.1 66 65 64 63 62 61 83 26.5 53 52 50 49 48 47
57 88 24.7 75 74 73 72 71 70 78 26.1 63 62 60 59 58 57

9000

67 99 26.3 7 6 5 4 3 2 90 27.7 6 4 3 2 - ­62 93 25.1 68 66 65 64 63 62 85 26.5 47 45 43 42 40 39
57 89 24.7 77 76 74 73 72 71 80 26.1 61 59 58 56 55 54

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.

Temperature of Air on Condenser Coil

*

Return Dry Bulb (°F)

Total

Cap.

(MBH)

2

Total

1

Input

Sensible Capacity (MBH)

Return Dry Bulb (°F)

(kW)

*

All Sensible Capacity

20 Unitary Products Group

262292-YTG-B-0107

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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

160

140

120

100

80

Lbs/Hr

60

40

20

262292-YTG-B-0107

20-Ton Moisture Removal @ 8000 cfm

Alternate mode @ various indoor (wet bulb/dry bulb) conditions

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

70

60

50

40

30

Lbs/Hr

20

10

Normal mode @ various indoor (wet bulb/dry bulb) conditions

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

Lbs/Hr

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

Lbs/Hr

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

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.

use the indoor blower tables for high altitude applications,
certain corrections are necessary.

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

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

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.

TABLE 10: ALTITUDE CORRECTION FACTORS

AIR TEMP

40 1.060 1.022 0.986 0.950 0.916 0.882 0.849 0.818 0.788 0.758 0.729
50 1.039 1.002 0.966 0.931 0.898 0.864 0.832 0.802 0.772 0.743 0.715
60 1.019 0.982 0.948 0.913 0.880 0.848 0.816 0.787 0.757 0.729 0.701
70 1.000 0.964 0.930 0.896 0.864 0.832 0.801 0.772 0.743 0.715 0.688
80 0.982 0.947 0.913 0.880 0.848 0.817 0.787 0.758 0.730 0.702 0.676
90 0.964 0.929 0.897 0.864 0.833 0.802 0.772 0.744 0.716 0.689 0.663

100 0.946 0.912 0.880 0.848 0.817 0.787 0.758 0.730 0.703 0.676 0.651

0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000

The examples below will assist in determining the airflow
performance of the product at altitude.

Example 1: What are the corrected CFM, static pressure, and
BHP at an elevation of 5,000 ft. if the blower performance data

ALTITUDE (FEET)

blower tables to select the blower speed and the BHP
requirement.

Solution: As in the example above, no temperature
information is given so 70°F is assumed.

is 6,000 CFM, 1.5 IWC and 4.0 BHP?

The 1.5" static pressure given is at an elevation of 5,000 ft. The
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

first step is to convert this static pressure to equivalent sea level

conditions.
must be used to determine the static pressure and BHP. Since
no temperature data is given, we will assume an air

Sea level static pressure = 1.5 / .832 = 1.80"
temperature of 70°F. Table 10 shows the correction factor to
be 0.832.

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

Suppose that the corresponding BHP listed in the table is 3.2.

Corrected BHP = 4.0 x 0.832 = 3.328

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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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

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

Blower Performance (Downflow Discharge)

15-Ton Standard Drive, Cooling Only, Bottom Connection

1VP62 x BK105

7000

6500

6000

5500

5000

4500

SCFM

4000

3500

3000

2500

0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4

1 Turn

2 Turns

3 Turns

4 Turns

5 Turns
6 Turns

External Static ("WC)

26 Unitary Products Group

262292-YTG-B-0107

TABLE 12: WR180 BLOWER PERFORMANCE - 15 TON STANDARD DRIVE (GAS HEAT) DOWNFLOW

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

Blower Performance (Downflow Discharge)

15-Ton Standard Drive, Gas Heat, Bottom Connection

1VP62 x BK105

7000

6500

6000

5500

5000

4500

SCFM

4000

3500

3000

2500

0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4

1 Turn

2 Turns

3 Turns

4 Turns

5 Turns
6 Turns

External Static ("WC)

Unitary Products Group 27

262292-YTG-B-0107

TABLE 13: WR180 BLOWER PERFORMANCE - 15 TON HIGH STATIC DRIVE (COOLING ONLY) DOWNFLOW

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

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

0.2

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

0.4

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

0.6

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

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

1.0

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

1.2

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

1.4

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 - - - ­4733 1131 3.15 3.78 4402 1091 2.83 3.40 3756 1052 2.28 2.73------------

1.8
1 turn 2 turns 3 turns 4 turns 5 turns 6 turns

7.5 HP motor 5 HP motor

Blower Performance (Downflow Discharge)

15-Ton High Static Drive, Cooling Only, Bottom Connection

1VP62 x BK90

8000

1 Turn

7500

7000

6500

2 Turns
3 Turns

4 Turns

5 Turns

6 Turns

6000

5500

SCFM

5000

4500

4000

3500

3000

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

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

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

0.2

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
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

0.6

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

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

1.0

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

1.2

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

1.4

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 - - - ­4638 1131 2.96 3.56 4314 1091 2.66 3.19 3681 1052 2.14 2.57------------

1.8
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

8000

7500

7000

1 Turn

2 Turns

3 Turns

4 Turns

6500

5 Turns

6 Turns

6000

Blower Performance (Downflow Discharge)

1VP62 x BK90

5500

SCFM

5000

4500

4000

3500

3000

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

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 - - - -

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
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

0.8

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

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

1.2

8197 1112 6.75 8.24 7571 1078 5.98 7.29 7218 1043 5.43 6.62 6638 1008 4.54 5.54 - - - - - - - -

1.4

7795 1113 6.40 7.81 7086 1079 5.71 6.97 6729 1044 4.95 6.04------------

1.6

1.8

7313 1115 6.27 7.65--------------------

1 turn 2 turns 3 turns 4 turns 5 turns 6 turns

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

10 HP motor 7.5 HP motor

Blower Performance (Downflow Discharge)

20-Ton Standard Drive, Cooling Only, Bottom Connection

VP68 x BK100

11000

10000

9000

8000

2 Turns

3 Turns

4 Turns
5 Turns
6 Turns

1 Turn

SCFM

7000

6000

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

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

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

0.4

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
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

0.8

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
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

1.2
8033 1112 6.35 7.75 7420 1078 5.62 6.86 7074 1043 5.10 6.22 6505 1008 4.26 5.20 - - - - - - - -

1.4
7639 1113 6.01 7.34 6944 1079 5.37 6.55 6594 1044 4.65 5.68-- ----------

1.6

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

Blower Performance (Downflow Discharge)

20-Ton Standard Drive, Gas Heat, Bottom Connection

VP68 x BK100

11000

10000

9000

8000

1 Turn
2 Turns
3 Turns

4 Turns

5 Turns
6 Turns

SCFM

7000

6000

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

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

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

0.4
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

0.6
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

0.8

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

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

1.2

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

1.4

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 - - - -

1.6

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 - - - - - - - ­8446 1210 8.27 10.09 7916 1176 7.41 9.04 7356 1141 6.48 7.91------------

2.0

7996 1212 7.90 9.64- -- - - ------- --------

2.2

1 turn 2 turns 3 turns 4 turns 5 turns 6 turns

15 HP motor 10 HP motor 7.5 HP motor

Blower Performance (Downflow Discharge)

20-Ton High Static Drive, Cooling Only, Bottom Connection

VP71 x BK100

12000

1 Turn

11000

10000

9000

2 Turns

3 Turns

4 Turns

5 Turns

6 Turns

SCFM

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

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

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

0.4
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

0.6
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

0.8

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

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

1.2

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

1.4

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 - - - -

1.6

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 - - - - - - - ­8277 1210 7.77 9.49 7758 1176 6.97 8.50 7209 1141 6.09 7.44------------

2.0

7836 1212 7.43 9.07- -- - - ------- --------

2.2

1 turn 2 turns 3 turns 4 turns 5 turns 6 turns

15 HP motor 10 HP motor 7.5 HP motor

Blower Performance (Downflow Discharge)

20-Ton High Static Drive, Gas Heat, Bottom Connection

VP71 x BK100

12000

11000

10000

9000

SCFM

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

External Static ("WC)

Unitary Products Group 33

262292-YTG-B-0107

TABLE 19: WR300 BLOWER PERFORMANCE - 25 TON STANDARD DRIVE (COOLING ONLY) DOWNFLOW

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

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

0.4
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

0.6

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

0.8

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

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

1.2

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

1.4

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

1.6

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
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 - - - -

2.0

7135 1114 5.92 7.22 6346 1078 4.91 5.99 5735 1042 4.25 5.19------------

2.2

1 turn 2 turns 3 turns 4 turns 5 turns 6 turns

15 HP motor 10 HP motor 7.5 HP motor

Blower Performance (Downflow Discharge)

25-Ton Standard Drive, Cooling Only, Bottom Duct Connection

1VP65 & B5V94

12000

11000

10000

SCFM

1 Turn
2 Turns
3 Turns

4 Turns

9000

5 Turns

6 Turns

8000

7000

6000

5000

4000

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

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

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

0.4

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

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

0.8

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
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

1.2
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

1.4
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

1.6

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
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 - - - -

2.0
6992 1114 5.56 6.79 6219 1078 4.62 5.63 5620 1042 4.00 4.88------------

2.2

1 turn 2 turns 3 turns 4 turns 5 turns 6 turns

15 HP motor 10 HP motor 7.5 HP motor

Blower Performance (Downflow Discharge)

25-Ton Standard Drive, Gas Heat, Bottom Duct Connection

1VP65 & B5V94

12000

11000

10000

SCFM

1 Turn

2 Turns

3 Turns
4 Turns

9000

5 Turns

6 Turns

8000

7000

6000

5000

4000

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

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

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

0.4

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
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

0.8

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

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

1.2

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

1.4
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

1.6

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
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 - - - -

2.0
8796 1226 8.82 10.76 8250 1190 7.78 9.49 7637 1155 6.67 8.14 7134 1119 5.99 7.31 - - - - - - - -

2.2
8287 1227 8.19 10.00 7791 1191 7.26 8.86- ------- --------

2.4
7782 1229 7.98 9.74- -- - - ------- --------

2.6

1 turn 2 turns 3 turns 4 turns 5 turns 6 turns

15 HP motor 10 HP motor 7.5 HP motor

Blower Performance (Downflow Discharge)

25-Ton High Static Drive, Cooling Only, Bottom Duct Connection

13000

12000

11000

10000

SCFM

9000

8000

7000

6000

1 Turn

2 Turns
3 Turns

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

1VP71 & 1B5V94

External Static ("WC)

36 Unitary Products Group

262292-YTG-B-0107

TABLE 22: WR300 BLOWER PERFORMANCE - 25 TON HIGH STATIC DRIVE (GAS HEAT) DOWNFLOW

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

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

0.4

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

0.6

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

0.8

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

1.0

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
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

1.6
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

1.8
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 - - - -

2.0
8620 1226 8.29 10.12 8085 1190 7.31 8.92 7484 1155 6.27 7.65 6991 1119 5.63 6.87 - - - - - - - -

2.2

2.4

8121 1227 7.70 9.40 7635 1191 6.82 8.33- --- -----------­7626 1229 7.50 9.15- -- - - ------- --------

2.6

1 turn 2 turns 3 turns 4 turns 5 turns 6 turns

15 HP motor 10 HP motor 7.5 HP motor

Blower Performance (Downflow Discharge)

25-Ton High Static Drive, Gas Heat, Bottom Duct Connection

13000

12000

11000

10000

SCFM

9000

8000

7000

6000

1 Turn

2 Turns
3 Turns

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

1VP71 & 1B5V94

External Static ("WC)

Unitary Products Group 37

262292-YTG-B-0107

TABLE 23: BLOWER MOTOR AND DRIVE DATA

1

MODEL

SIZE

Standard 790/970 5 184 T 89.5

15 TON

20 TON

25 TON

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 servi ce factor becau se they are
located in the moving air, upstream of any heating device.

2. Do NOT

BLOWER

DRIVE

Speed

Access

Speed

Speed

Access

Speed

Speed

Access

RANGE

(RPM)

High

940/1130 7.5 213 T 91 1-3/8 BK90 8.75 8.4

Low

910/1100

Drive

High

1000/118 0 15 254 T 91 1VP71 7.1 5.4-6.6 1-5/8

Low

900/1100

Drive

High

1000/1200 1VP71 7.1 5.5-6.5 BX81 82.8

close this pully below 1 turn open.

MOTOR

HP FRAME

7.5 213 T 91

7.5 213 T 91

15 254 T 91 1-5/8 1-7/16

EFF.

(%)

ADJUSTABLE MOTOR PULLEY FIXED BLOWER PULLEY

DESIG-

NATION

1VP62 5.95

1VP68 6.55 5.5-6.5 1-3/8

1VP65 6.0 4.8-6.0

OUTSIDE

DIA.

(IN.)

PITCH

DIA.
(IN.)

4.9-5.9

BORE

DESIG-

(IN.)

NATION

1-1/8 BK105 10.25 9.9

2

1-3/8

1B5V94 9.7 9.5

OUTSIDE

DIA.
(IN.)

BK100 9.75 9.4 1-3/16 BX81 82.8 1Standard 10 215 T 91

PITCH

DIA.
(IN.)

(NOTCHED)

BORE

DESIG-

(IN.)

NATION

1 BX81 82.8 1

1-3/16

BX78 79.8

BELT

PITCH

LENGTH

(IN.)

QTY.

1Standard

TABLE 24: STATIC RESISTANCES

1

RESISTANCE, IWG

DESCRIPTION

15 TON 20 TON 25 TON

CFM

4500 6000 7500 6000 8000 9000 7500 8000 9000

WET INDOOR COIL 0.1 0.1 0.1 0.1 0.1 0.2 0.1 0.1 0.2

18 KW 0.3 0.4 0.4 0.4 0.4 0.5 0.4 0.4 0.5

ELECTRIC HEAT OPTIONS

36 KW 0.3 0.4 0.5 0.4 0.5 0.5 0.5 0.5 0.5
54 KW 0.4 0.5 0.5 0.5 0.5 0.6 0.5 0.5 0.6
72 KW 0.4 0.5 0.5 0.5 0.5 0.6 0.5 0.5 0.6

ECONOMIZER OPTION 0.1 0.1 0.1 0.1 0.1 0.2 0.1 0.1 0.2
HORIZONTAL DUCT CONNECTIONS

1. Deduct these resistance values from the available external static pressures shown in the respective Blower Perfo r m a nce Table.

Since the resistance to air flow will be less for horizontal duct connections than for bottom duct connections, add these pressures to the

2.

2

0.1 0.2 0.3 0.2 0.3 0.5 0.3 0.3 0.5

ESP values on the respective unit’s blower performance table.

TABLE 25: POWER EXHAUST PERFORMANCE

MOTOR

SPEED

2

HIGH

MEDIUM

LOW

1

CFM kW CFM kW CFM kW CFM kW CFM kW

5250 0.83 4500 0.85 4200 0.88 3750 0.93 3000 0.99
4900 0.77 3900 0.79 3500 0.82 2900 0.85 - -

4400 0.72 3700 0.74 3000 0.78 - - - -

0.2 0.3 0.4 0.5 0.6

1. Power exhaust motor is a 3/4 HP, PSC type with sleeve bearings, a 48 frame and inherent protection.

2. The factory setting.

STATIC RESISTANCE OF RETURN DUCTWORK, IWG

38 Unitary Products Group

262292-YTG-B-0107

TABLE 26: WR ELECTRICAL DATA - STANDARD DRIVE MOTOR W/O POWERED CONVENIENCE OUTLET

MODEL

(TONNAGE)

180
(15)

240
(20)

300
(25)

VOLTAGE

208 22.4 164 2.1 17.7 0.0

230 22.4 164 2.1 16.4 0.0

460 10.9 100 1.2 8.2 0.0

575 8.3 78 0.9 6.6 0.0

208 30.1 225 2.4 24.2 0.0

230 30.1 225 2.4 24.2 0.0

460 15.5 114 0.9 12.1 0.0

575 12.1 80 0.6 10.3 0.0

208 42.3 245 2.4 38.6 0.0

230 42.3 245 2.4 38.6 0.0

460 17.6 125 0.9 19.3 0.0

575 14.5 100 0.6 16.2 0.0

COMPRESSORS

RLA

EACH

LRA

EACH

NOTE 1: HACR Type per NEC.

VOLTAGE LIMITATIONS ELECTRIC HEAT CORRECTION FACTORS

POWER SUPPLY

VOLTAGE

LIMITATIONS

1. Utilization Range “A” in accordance with ARI Standard 110.

1

208/230-3-60 187 253 240 230 0.92

460-3-60 414 506 480 460 0.92
575-3-60 518 630 600 575 0.92

MIN. MAX. 208 208 1.00

OD FAN

MOTORS

FLA EACH

VOLTAGE NOMINAL VOLTAGE VOLTAGE kW CAP. MULTIPLIER

ID

BLOWER

MOTOR

FLA

CONV

OUTLET

AMPS

HEATER OPTION MIN.

MODEL KW STAGES AMPS

None - - - 76.5 90

E18 13.5 1 37.5 76.5 90
E36 27 2 74.9 115.8 125
E54 40.6 2 112.7 163.0 175
E72 54.1 2 150.2 172.3 200

None - - - 75.2 90

E18 18.0 1 43.3 75.2 90
E36 36.0 2 86.6 128.8 150
E54 54.0 2 129.9 150.4 175
E72 72.0 2 173.2 193.7 225

None - - - 37.5 45

E18 18.0 1 21.7 37.5 45
E36 36.0 2 43.3 64.4 70
E54 54.0 2 65.0 75.2 90
E72 72.0 2 86.6 96.9 110

None - - - 28.9 35

E18 18.0 1 17.3 29.9 35
E36 36.0 2 34.6 51.6 60
E54 54.0 2 52.0 60.2 70
E72 72.0 2 69.3 77.5 90

None - - - 101.5 125

E18 13.5 1 37.5 101.5 125
E36 27 2 74.9 123.9 125
E54 40.6 2 112.7 171.1 175
E72 54.1 2 150.2 180.4 200

None - - - 101.5 125

E18 18.0 1 43.3 101.5 125
E36 36.0 2 86.6 138.5 150
E54 54.0 2 129.9 160.2 175
E72 72.0 2 173.2 203.5 225

None - - - 50.6 60

E18 18.0 1 21.7 50.6 60
E36 36.0 2 43.3 69.3 70
E54 54.0 2 65.0 80.1 90
E72 72.0 2 86.6 101.7 110

None - - - 39.9 50

E18 18.0 1 17.3 39.9 50
E36 36.0 2 34.6 56.2 60
E54 54.0 2 52.0 64.8 70
E72 72.0 2 69.3 82.2 90

None - - - 143.4 175

E18 13.5 1 37.5 143.4 175
E36 27 2 74.9 143.4 175
E54 40.6 2 112.7 189.1 200
E72 54.1 2 150.2 198.4 225

None - - - 143.4 175

E18 18.0 1 43.3 143.4 175
E36 36.0 2 86.6 156.5 175
E54 54.0 2 129.9 178.2 200
E72 72.0 2 173.2 221.5 250

None - - - 62.9 80

E18 18.0 1 21.7 62.9 80
E36 36.0 2 43.3 78.3 80
E54 54.0 2 65.0 89.1 100
E72 72.0 2 86.6 110.7 125

None - - - 51.7 60

E18 18.0 1 17.3 51.7 60
E36 36.0 2 34.6 63.6 70
E54 54.0 2 52.0 72.2 80
E72 72.0 2 69.3 89.5 100

CIRCUIT

AMPACITY

(AMPS)

MAX. FUSE/

1

BRKR

SIZE

(AMPS)

Unitary Products Group 39

262292-YTG-B-0107

TABLE 27: WR ELECTRICAL DATA - HIGH STATIC DRIVE MOTOR W/O POWERED CONVENIENCE OUTLET

MODEL

(TONNAGE)

180
(15)

240
(20)

300
(25)

VOLTAGE

208 22.4 164 2.1 20.0 0.0

230 22.4 164 2.1 20.0 0.0

460 10.9 100 1.2 10.0 0.0

575 8.3 78 0.9 7.5 0.0

208 30.1 225 2.4 38.6 0.0

230 30.1 225 2.4 38.6 0.0

460 15.5 114 0.9 19.3 0.0

575 12.1 80 0.6 16.2 0.0

208 42.3 245 2.4 38.6 0.0

230 42.3 245 2.4 38.6 0.0

460 17.6 125 0.9 19.3 0.0

575 14.5 100 0.6 16.2 0.0

COMPRESSORS

RLA

EACH

LRA

EACH

NOTE 1: HACR Type per NEC.

VOLTAGE LIMITATIONS ELECTRIC HEAT CORRECTION FACTORS

POWER SUPPLY

VOLTAGE

LIMITATIONS

1. Utilization Range “A” in accordance with ARI Standard 110.

1

208/230-3-60 187 253 240 230 0.92

460-3-60 414 506 480 460 0.92
575-3-60 518 630 600 575 0.92

MIN. MAX. 208 208 1.00

OD FAN

MOTORS

FLA EACH

VOLTAGE NOMINAL VOLTAGE VOLTAGE kW CAP. MULTIPLIER

ID

BLOWER

MOTOR

FLA

CONV

OUTLET

AMPS

HEATER OPTION MIN.

MODEL KW STAGES AMPS

None - - - 78.8 100

E18 13.5 1 37.5 78.8 100
E36 27 2 74.9 118.7 125
E54 40.6 2 112.7 165.9 175
E72 54.1 2 150.2 175.2 200

None - - - 78.8 100

E18 18.0 1 43.3 79.1 100
E36 36.0 2 86.6 133.3 150
E54 54.0 2 129.9 154.9 175
E72 72.0 2 173.2 198.2 225

None - - - 39.3 50

E18 18.0 1 21.7 39.6 50
E36 36.0 2 43.3 66.6 70
E54 54.0 2 65.0 77.5 90
E72 72.0 2 86.6 99.1 110

None - - - 29.8 35

E18 18.0 1 17.3 31.0 35
E36 36.0 2 34.6 52.7 60
E54 54.0 2 52.0 61.3 70
E72 72.0 2 69.3 78.7 90

None - - - 118.1 150

E18 13.5 1 37.5 118.1 150
E36 27 2 74.9 141.9 150
E54 40.6 2 112.7 189.1 200
E72 54.1 2 150.2 198.4 225

None - - - 118.1 150

E18 18.0 1 43.3 118.1 150
E36 36.0 2 86.6 156.5 175
E54 54.0 2 129.9 178.2 200
E72 72.0 2 173.2 221.5 250

None - - - 58.7 70

E18 18.0 1 21.7 58.7 70
E36 36.0 2 43.3 78.3 80
E54 54.0 2 65.0 89.1 100
E72 72.0 2 86.6 110.7 125

None - - - 46.9 60

E18 18.0 1 17.3 46.9 60
E36 36.0 2 34.6 63.6 70
E54 54.0 2 52.0 72.2 80
E72 72.0 2 69.3 89.5 100

None - - - 143.4 175

E18 13.5 1 37.5 143.4 175
E36 27 2 74.9 143.4 175
E54 40.6 2 112.7 189.1 200
E72 54.1 2 150.2 198.4 225

None - - - 143.4 175

E18 18.0 1 43.3 143.4 175
E36 36.0 2 86.6 156.5 175
E54 54.0 2 129.9 178.2 200
E72 72.0 2 173.2 221.5 250

None - - - 62.9 80

E18 18.0 1 21.7 62.9 80
E36 36.0 2 43.3 78.3 80
E54 54.0 2 65.0 89.1 100
E72 72.0 2 86.6 110.7 125

None - - - 51.7 60

E18 18.0 1 17.3 51.7 60
E36 36.0 2 34.6 63.6 70
E54 54.0 2 52.0 72.2 80
E72 72.0 2 69.3 89.5 100

CIRCUIT

AMPACITY

(AMPS)

MAX. FUSE/

1

BRKR

SIZE

(AMPS)

40 Unitary Products Group

262292-YTG-B-0107

TABLE 28: WR ELECTRICAL DATA - LOW AIRFLOW DRIVE MOTOR W/O POWERED CONVENIENCE OUTLET

MODEL

(TONNAGE)

240
(20)

300
(25)

VOLTAGE

208 30.1 225 2.4 20.0 0.0

230 30.1 225 2.4 20.0 0.0

460 15.5 114 0.9 10.0 0.0

575 12.1 80 0.6 7.5 0.0

208 42.3 245 2.4 20.0 0.0

230 42.3 245 2.4 20.0 0.0

460 17.6 125 0.9 10.0 0.0

575 14.5 100 0.6 7.5 0.0

RLA

EACH

LRA

EACH

NOTE 1: HACR Type per NEC.

VOLTAGE LIMITATIONS ELECTRIC HEAT CORRECTION FACTORS

COMPRESSORS

POWER SUPPLY

VOLTAGE

LIMITATIONS

1. Utilization Range “A” in accordance with ARI Standard 110.

1

208/230-3-60 187 253 240 230 0.92

460-3-60 414 506 480 460 0.92
575-3-60 518 630 600 575 0.92

MIN. MAX. 208 208 1.00

OD FAN

MOTORS

FLA EACH

VOLTAGE NOMINAL VOLTAGE VOLTAGE kW CAP. MULTIPLIER

ID

BLOWER

MOTOR

FLA

CONV

OUTLET

AMPS

HEATER OPTION MIN.

CIRCUIT

MODEL KW STAGES AMPS

None 0.0 - - 97.3 125

E18 13.5 1 37.5 97.3 125
E36 27.0 2 75.1 118.7 125
E54 40.6 2 112.7 165.9 175
E72 54.1 2 150.2 175.2 200

None 0.0 - - 97.3 125

E18 18.0 1 43.3 97.3 125
E36 36.0 2 86.6 133.3 150
E54 54.0 2 129.9 154.9 175
E72 72.0 2 173.2 198.2 225

None 0.0 - - 48.5 60

E18 18.0 1 21.7 48.5 60
E36 36.0 2 43.3 66.6 70
E54 54.0 2 65.0 77.5 90
E72 72.0 2 86.6 99.1 110

None 0.0 - - 37.1 45

E18 18.0 1 17.3 37.1 45
E36 36.0 2 34.6 52.7 60
E54 54.0 2 52.0 61.3 70
E72 72.0 2 69.3 78.7 90

None 0.0 - - 124.8 150

E18 13.5 1 37.5 124.8 150
E36 27.0 2 75.1 124.8 150
E54 40.6 2 112.6 165.9 175
E72 54.1 2 150.1 175.2 200

None 0.0 - - 124.8 150

E18 18.0 1 43.3 124.8 150
E36 36.0 2 86.6 133.3 150
E54 54.0 2 129.9 154.9 175
E72 72.0 2 173.2 198.2 225

None 0.0 - - 53.2 70

E18 18.0 1 21.7 53.2 70
E36 36.0 2 43.3 66.6 70
E54 54.0 2 65.0 77.5 90
E72 72.0 2 86.6 99.1 110

None 0.0 - - 42.5 50

E18 18.0 1 17.3 42.5 50
E36 36.0 2 34.6 52.7 60
E54 54.0 2 52.0 61.3 70
E72 72.0 2 69.3 78.7 90

AMPACITY

(AMPS)

MAX. FUSE/

1

BRKR

SIZE

(AMPS)

Unitary Products Group 41

262292-YTG-B-0107

TABLE 29: WR ELECTRICAL DATA - STANDARD DRIVE MOTOR WITH POWERED CONVENIENCE OUTLET

MODEL

(TONNAGE)

180
(15)

240
(20)

300
(25)

VOLTAGE

208 22.4 164 2.1 17.7 10.0

230 22.4 164 2.1 16.4 10.0

460 10.9 100 1.2 8.2 5.0

575 8.3 78 0.9 6.6 4.0

208 30.1 225 2.4 24.2 10.0

230 30.1 225 2.4 24.2 10.0

460 15.5 114 0.9 12.1 5.0

575 12.1 80 0.6 10.3 4.0

208 42.3 245 2.4 38.6 10.0

230 42.3 245 2.4 38.6 10.0

460 17.6 125 0.9 19.3 5.0

575 14.5 100 0.6 16.2 4.0

COMPRESSORS

RLA

EACH

LRA

EACH

NOTE 1: HACR Type per NEC.

VOLTAGE LIMITATIONS ELECTRIC HEAT CORRECTION FACTORS

POWER SUPPLY

VOLTAGE

LIMITATIONS

1. Utilization Range “A” in accordance with ARI Standard 110.

1

208/230-3-60 187 253 240 230 0.92

460-3-60 414 506 480 460 0.92
575-3-60 518 630 600 575 0.92

MIN. MAX. 208 208 1.00

OD FAN

MOTORS

FLA EACH

VOLTAGE NOMINAL VOLTAGE VOLTAGE kW CAP. MULTIPLIER

ID

BLOWER

MOTOR

FLA

CONV

OUTLET

AMPS

HEATER OPTION MIN.

MODEL KW STAGES AMPS

None - - - 86.5 100

E18 13.5 1 37.5 86.5 100
E36 27 2 74.9 128.3 150
E54 40.6 2 112.7 175.5 200
E72 54.1 2 150.2 184.8 200

None - - - 85.2 100

E18 18.0 1 43.3 87.1 100
E36 36.0 2 86.6 141.3 150
E54 54.0 2 129.9 162.9 175
E72 72.0 2 173.2 206.2 225

None - - - 42.5 50

E18 18.0 1 21.7 43.6 50
E36 36.0 2 43.3 70.6 80
E54 54.0 2 65.0 81.5 90
E72 72.0 2 86.6 103.1 110

None - - - 32.9 40

E18 18.0 1 17.3 34.9 40
E36 36.0 2 34.6 56.6 60
E54 54.0 2 52.0 65.2 70
E72 72.0 2 69.3 82.5 90

None - - - 111.5 125

E18 13.5 1 37.5 111.5 125
E36 27 2 74.9 136.4 150
E54 40.6 2 112.7 183.6 200
E72 54.1 2 150.2 192.9 200

None - - - 111.5 125

E18 18.0 1 43.3 111.5 125
E36 36.0 2 86.6 151.0 175
E54 54.0 2 129.9 172.7 175
E72 72.0 2 173.2 216.0 225

None - - - 55.6 70

E18 18.0 1 21.7 55.6 70
E36 36.0 2 43.3 75.5 80
E54 54.0 2 65.0 86.3 90
E72 72.0 2 86.6 108.0 110

None - - - 43.9 50

E18 18.0 1 17.3 43.9 50
E36 36.0 2 34.6 61.2 70
E54 54.0 2 52.0 69.8 70
E72 72.0 2 69.3 87.2 90

None - - - 153.4 175

E18 13.5 1 37.5 153.4 175
E36 27 2 74.9 154.4 175
E54 40.6 2 112.7 201.6 225
E72 54.1 2 150.2 210.9 225

None - - - 153.4 175

E18 18.0 1 43.3 153.4 175
E36 36.0 2 86.6 169.0 175
E54 54.0 2 129.9 190.7 225
E72 72.0 2 173.2 234.0 250

None - - - 67.9 80

E18 18.0 1 21.7 67.9 80
E36 36.0 2 43.3 84.5 90
E54 54.0 2 65.0 95.3 110
E72 72.0 2 86.6 117.0 125

None - - - 55.7 70

E18 18.0 1 17.3 55.7 70
E36 36.0 2 34.6 68.6 70
E54 54.0 2 52.0 77.2 90
E72 72.0 2 69.3 94.5 100

CIRCUIT

AMPACITY

(AMPS)

MAX. FUSE/

1

BRKR

SIZE

(AMPS)

42 Unitary Products Group

262292-YTG-B-0107

TABLE 30: WR ELECTRICAL DATA - HIGH STATIC DRIVE MOTOR WITH POWERED CONVENIENCE OUTLET

MODEL

(TONNAGE)

180
(15)

240
(20)

300
(25)

VOLTAGE

208 22.4 164 2.1 20.0 10.0

230 22.4 164 2.1 20.0 10.0

460 10.9 100 1.2 10.0 5.0

575 8.3 78 0.9 7.5 4.0

208 30.1 225 2.4 38.6 10.0

230 30.1 225 2.4 38.6 10.0

460 15.5 114 0.9 19.3 5.0

575 12.1 80 0.6 16.2 4.0

208 42.3 245 2.4 38.6 10.0

230 42.3 245 2/4 38.6 10.0

460 17.6 125 0.9 19.3 5.0

575 14.5 100 0.6 16.2 4.0

COMPRESSORS

RLA

EACH

LRA

EACH

NOTE 1: HACR Type per NEC.

VOLTAGE LIMITATIONS ELECTRIC HEAT CORRECTION FACTORS

POWER SUPPLY

VOLTAGE

LIMITATIONS

1. Utilization Range “A” in accordance with ARI Standard 110.

1

208/230-3-60 187 253 240 230 0.92

460-3-60 414 506 480 460 0.92
575-3-60 518 630 600 575 0.92

MIN. MAX. 208 208 1.00

OD FAN

MOTORS

FLA EACH

VOLTAGE NOMINAL VOLTAGE VOLTAGE kW CAP. MULTIPLIER

ID

BLOWER

MOTOR

FLA

CONV

OUTLET

AMPS

HEATER OPTION MIN.

MODEL KW STAGES AMPS

None - - - 88.8 110

E18 13.5 1 37.5 88.8 110
E36 27 2 74.9 131.2 150
E54 40.6 2 112.7 178.4 200
E72 54.1 2 150.2 187.7 200

None - - - 88.8 110

E18 18.0 1 43.3 91.6 110
E36 36.0 2 86.6 145.8 150
E54 54.0 2 129.9 167.4 175
E72 72.0 2 173.2 210.7 225

None - - - 44.3 50

E18 18.0 1 21.7 45.8 50
E36 36.0 2 43.3 72.9 80
E54 54.0 2 65.0 83.7 90
E72 72.0 2 86.6 105.4 110

None - - - 33.8 40

E18 18.0 1 17.3 36.0 40
E36 36.0 2 34.6 57.7 60
E54 54.0 2 52.0 66.3 70
E72 72.0 2 69.3 83.7 90

None - - - 128.1 150

E18 13.5 1 37.5 128.1 150
E36 27 2 74.9 154.4 175
E54 40.6 2 112.7 201.6 225
E72 54.1 2 150.2 210.9 225

None - - - 128.1 150

E18 18.0 1 43.3 128.1 150
E36 36.0 2 86.6 169.0 175
E54 54.0 2 129.9 190.7 225
E72 72.0 2 173.2 234.0 250

None - - - 63.7 80

E18 18.0 1 21.7 63.7 80
E36 36.0 2 43.3 84.5 90
E54 54.0 2 65.0 95.3 110
E72 72.0 2 86.6 117.0 125

None - - - 50.9 60

E18 18.0 1 17.3 50.9 60
E36 36.0 2 34.6 68.6 70
E54 54.0 2 52.0 77.2 90
E72 72.0 2 69.3 94.5 100

None - - - 153.4 175

E18 13.5 1 37.5 153.4 175
E36 27 2 74.9 154.4 175
E54 40.6 2 112.7 201.6 225
E72 54.1 2 150.2 210.9 225

None - - - 153.4 175

E18 18.0 1 43.3 153.4 175
E36 36.0 2 86.6 169.0 175
E54 54.0 2 129.9 190.7 225
E72 72.0 2 173.2 234.0 250

None - - - 67.9 80

E18 18.0 1 21.7 67.9 80
E36 36.0 2 43.3 84.5 90
E54 54.0 2 65.0 95.3 110
E72 72.0 2 86.6 117.0 125

None - - - 55.7 70

E18 18.0 1 17.3 55.7 70
E36 36.0 2 34.6 68.6 70
E54 54.0 2 52.0 77.2 90
E72 72.0 2 69.3 94.5 100

CIRCUIT

AMPACITY

(AMPS)

MAX. FUSE/

1

BRKR

SIZE

(AMPS)

Unitary Products Group 43

262292-YTG-B-0107

TABLE 31: WR ELECTRICAL DATA - LOW AIRFLOW DRIVE MOTOR WITH POWERED CONVENIENCE OUTLET

MODEL

(TONNAGE)

240
(20)

300
(25)

VOLTAGE

208 30.1 225 2.4 20.0 10.0

230 30.1 225 2.4 20.0 10.0

460 15.5 114 0.9 10.0 5.0

575 12.1 80 0.6 7.5 4.0

208 42.3 245 2.4 20.0 10.0

230 42.3 245 2.4 20.0 10.0

460 17.6 125 0.9 10.0 5.0

575 14.5 100 0.6 7.5 4.0

RLA

EACH

LRA

EACH

NOTE 1: HACR Type per NEC.

VOLTAGE LIMITATIONS ELECTRIC HEAT CORRECTION FACTORS

COMPRESSORS

POWER SUPPLY

VOLTAGE

LIMITATIONS

1. Utilization Range “A” in accordance with ARI Standard 110.

1

208/230-3-60 187 253 240 230 0.92

460-3-60 414 506 480 460 0.92
575-3-60 518 630 600 575 0.92

MIN. MAX. 208 208 1.00

OD FAN

MOTORS

FLA EACH

VOLTAGE NOMINAL VOLTAGE VOLTAGE kW CAP. MULTIPLIER

ID

BLOWER

MOTOR

FLA

CONV

OUTLET

AMPS

HEATER OPTION MIN.

CIRCUIT

MODEL KW STAGES AMPS

None 0.0 - - 107.3 125

E18 13.5 1 37.5 107.3 125
E36 27.0 2 75.1 131.2 150
E54 40.6 2 112.7 178.4 200
E72 54.1 2 150.2 187.7 200

None 0.0 - - 107.3 125

E18 18.0 1 43.3 107.3 125
E36 36.0 2 86.6 145.8 150
E54 54.0 2 129.9 167.4 175
E72 72.0 2 173.2 210.7 225

None 0.0 - - 53.5 60

E18 18.0 1 21.7 53.5 60
E36 36.0 2 43.3 72.9 80
E54 54.0 2 65.0 83.7 90
E72 72.0 2 86.6 105.4 110

None 0.0 - - 41.1 50

E18 18.0 1 17.3 41.1 50
E36 36.0 2 34.6 57.7 60
E54 54.0 2 52.0 66.3 70
E72 72.0 2 69.3 83.7 90

None 0.0 - - 134.8 175

E18 13.5 1 37.5 134.8 175
E36 27.0 2 75.1 134.8 175
E54 40.6 2 112.6 178.4 200
E72 54.1 2 150.1 187.7 200

None 0.0 - - 134.8 175

E18 18.0 1 43.3 134.8 175
E36 36.0 2 86.6 145.8 175
E54 54.0 2 129.9 167.4 175
E72 72.0 2 173.2 210.7 225

None 0.0 - - 58.2 70

E18 18.0 1 21.7 58.2 70
E36 36.0 2 43.3 72.9 80
E54 54.0 2 65.0 83.7 90
E72 72.0 2 86.6 105.4 110

None 0.0 - - 46.5 60

E18 18.0 1 17.3 46.5 60
E36 36.0 2 34.6 57.7 60
E54 54.0 2 52.0 66.3 70
E72 72.0 2 69.3 83.7 90

AMPACITY

(AMPS)

MAX. FUSE/

1

BRKR

SIZE

(AMPS)

44 Unitary Products Group

262292-YTG-B-0107

TABLE 32: PHYSICAL DATA

EVAPORATOR

BLOWER

EVAPORATOR

COIL

CONDENSER FAN
(FOUR PER UNIT)

CONDENSER

COIL

REHEAT COIL

COMPRESSOR

(QTY. PER UNIT)

FILTERS

CHARGE

OPERATING

WEIGHTS

(LBS.)

CENTRIFUGAL BLOWER (Dia. x Wd.) 15x15 18x15
FAN MOTOR HP 5/7.5 7.5/10.0/15.0 7.5/15.0
ROWS DEEP 6
FINS PER INCH 13
FACE AREA (Sq. Ft.) 20.52
PROPELLER DIA. (In.) (Each) 24 30
FAN MOTOR HP (Each) 1/3 3/4
NOM. CFM TOTAL (Each) 4,000 5,000
ROWS DEEP 2
FINS PER INCH 20
FACE AREA (Sq. Ft.) 63.8
ROWS DEEP 2
FINS PER INCH 13
FACE AREA (Sq. Ft.) 17.2

SCROLL 2
QUANTITY PER UNIT (16” X 25” X 2”) 4

QUANTITY PER UNIT (16” X 20” X 2”) 4
TOTAL FACE AREA (Sq. Ft.) 20
REFRIGERANT 22

(Lb./Oz.)

MODELS WR180 WR240 WR300

SYSTEM No. 1 24/0 28/8 28/0
SYSTEM No. 2 23/0 27/0 26/4

BASIC

UNIT

OPTIONS

ACCESSORIES

COOLING ONLY 2410 2710 2810
GAS / ELECTRIC
DOUBLE WALL 260

ECONOMIZER 160
ECONOMIZER WITH
POWER EXHAUST

MOTORIZED DAMPER 150

ELECTRIC

HEATER

HOT GAS BYPASS 10
SUPPLY FAN VFD See Table 33
ROOF CURB 185
BAROMETRIC DAMPER 45
ECONOMIZER / MOTORIZED
DAMPER RAIN HOOD
ECONOMIZER / POWER
EXHAUST RAIN HOOD
WOOD SKID 220

N24 2610 2910 3010
N32 2650 2950 3050

245

18 KW 25
36 KW 30
54 KW 35
72 KW 40

55

90

TABLE 33: SUPPLY FAN VFD WEIGHTS, IN LBS.

SUPPLY FAN MOTOR 230V 460V 575V

W/O MANUAL BYPASS

5.0 hp

7.5 hp

10.0 hp

15.0 hp

W/MANUAL BYPASS

5.0 hp

7.5 hp

10.0 hp

15.0 hp

Unitary Products Group 45

25 25 30
30 30 30
30 30 35
30 30 40

30 30 35
35 35 35
35 35 40
40 35 45

BLOWER
COMPARTMENT
ACCESS

BLOWER MOTOR
ACCESS (Location of
Optional VFD Bypass)

BLOWER ACCESS
(Location of
Optional VFD)

ECONOMIZER / MOTORIZED DAMPER
FIXED OUTDOOR INTAKE AIR AND
POWER EXHAUST RAIN HOODS
(See detail Y)

180-19/32

COMPRESSOR ACCESS

262292-YTG-B-0107

DOT PLUG
(For pressure
drop reading)

GAS OR ELECTRIC
HEAT
ACCESS

VENT AIR
OUTLET
HOODS

UNIT BASE RAILS
Shown separately to illustrate
Bottom Duct openings. Power
and Gas Piping Connection
location.

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.

52-5/8

COMBUSTION
AIR INLET HOOD

CONTROL BOX
ACCESS

(D)
GAS SUPPLY
ENTRY

(C) GAS
SUPPLY
ENTRY

136-1/4

35

35-1/4

11-1/8

7-1/8

46-5/8

2-3/4

5-7/8

33

12-1/2

21.00

6-3/8

9-3/4

46-5/8

RETURN
AIR

21-1/2

5

SUPPLY
AIR

9-1/4

11-1/2

8-1/8

9-3/4

92

(B) POWER
WIRING
ENTRY

BOTTOM SUPPLY
AND RETURN
AIR OPENINGS
(See Note)

(B) POWER WIRING
ENTRY

(A) CONTROL WIRING
ENTRY

CONDENSER
COILS

(A) CONTROL WIRING
ENTRY

DISCONNECT
SWITCH
LOCATION

All dimensions are in inches. They are
subject to change without notice.
Certified dimensions will be provided
upon request.

3-3/4

COIL
GUARD
KIT

FIGURE 12:UNIT DIMENSIONS WR180, 240 & 300 (FRONT VIEW)

TABLE 34: UTILITIES ENTRY DATA

HOLE

OPENING SIZE

(DIA.)

A

B

C
D

1. One-inch gas piping NPT required.

2. Opening in the bottom of the unit can be located by the slice in

1-1/8” KO

3/4” NPS (Fem.) Bottom

3-5/8” KO

3” NPS (Fem.) Bottom

2-3/8” KO

1-11/16” Hole

Control Wiring

Power Wiring

USED FOR

Gas Piping (Front)

Gas Piping (Bottom)

the insulation.

All entry holes should be field sealed to prevent rain

NOTE:

water entry into the building.

Side

Side

1

,

1

2

46 Unitary Products Group

262292-YTG-B-0107

Dimensions listed are for side
duct flange openings; see
Field Accessories for Side
Duct Flange Kit.

FIGURE 13:REAR VIEW DIMENSIONS

40-3/8"

COMPRESSOR
ACCESS

SUPPLY AIR
ACCESS

RETURN AIR
ACCESS

SUPPLY
AIR

18-5/8"

REAR

VIEW

5-1/8"

RETURN
AIR

27-3/4"

OUTDOOR
AIR

39-5/8"

40-1/2"

OUTDOOR AIR
COMPARTMENT
ACCESS

EVAPORATOR
SECTION

DOT PLUG
(For pressure
drop reading)

FILTER
ACCESS

1" NPT FEMALE
COND. DRAIN
CONNECTION

NOTE:Units are shipped with the bottom duct openings

covered. An accessory flange kit is available for
connecting side ducts.

For bottom

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.

2. Remove and discard the bottom duct covers. Duct
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 sup ply and return air compartment
panels.

For side duct applications:

1. Replace the side panels on the supply and return air
compartments with the side duct flange accessory kit
panels.

2. Connect ductwork to the flanges on those panels.

Unitary Products Group 47

262292-YTG-B-0107

TABLE 35: MINIMUM CLEARANCES

LOCATION

Front

Rear

Left Side (Filter Access)

Right Side (Cond. Coil)

Below Unit

Above Unit

1

2

CLEARANCE

36”

24” (Less Economizer)
49” (With Economizer)

24” (Less Economizer)

36” (With Economizer)

36”

72” With 36” Maximum
Horizontal Overhang (For
Condenser Air Discharge)

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 evapora­tor coil, or in the outdoor air compartment, prior to final installa­tion.

ECONOMIZER
MOTORIZED

SUPPLY AIR
COMPARTMENT

POWER EXHAUST
RAIN HOOD
(on Return Air Compartment)

DAMPER
RAIN HOOD
(on Outdoor Air Compartment)

NOTE: ELEC / ELEC Models: Units and ductwork are approved

for zero clearance to combustible material when
equipped with electric heaters.

GAS / ELEC Models

: A 1” clearance must be provided

between any combustible material and the supply air

3

0”

ductwork for a distance of 3 feet from the unit.
The products of combustion must not be allowed to

accumulate within a confined space and recirculate.
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).

• 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
AND POWER EXHAUST RAIN HOODS

36-5/8”

5”

REAR VIEW

DETAIL “Y”

UNIT WITH RAIN HOODS

FIGURE 14:UNIT DIMENSIONS WR180, 240 & 300 (RAINHOOD)

28-3/16”

16-1/8”

FIXED
OUTDOOR AIR
INTAKE HOOD
(located on
Return Air
Compartment)

92”

LH VIEW

1“ CONDENSATE
DRAIN

apped)

(Must be tr

48 Unitary Products Group

262292-YTG-B-0107

FIGURE 15:UNIT CENTER OF GRAVITY

47.5" (15, 20, 25 TON)

ROOF JACK

INSTALLATION

ROOF CURB

INSTALLATION

FIGURE 16:TYPICAL UNIT APPLICATIONS

SLAB ON
GROUND

INSTALLATION

Unitary Products Group 49

262292-YTG-B-0107

B

C

A

D

A

E

F

D

C

B

FIGURE 17:FOUR AND SIX POINT LOADS

TABLE 36: FOUR AND SIX POINT LOADS

Unit Size

Operating

Weight

ABC D

WR180 Gas 2900 495 924 965 516
WR240 Gas 3200 558 1042 1042 558

WR300 Gas 3300 575 1075 1075 575
WR180 Elec 2700 460 860 898 481
WR240 Elec 3000 523 977 977 523
WR300 Elec 3100 540 1010 1010 540

Unit Size

Operating

Weight

ABC D E F

WR180 Gas 2900 330 344 494 643 616 473

WR240 Gas 3200 372 372 533 695 695 533

WR300 Gas 3300 383 383 550 717 717 550
WR180 Elec 2700 307 321 460 599 573 440
WR240 Elec 3000 349 349 500 651 651 500
WR300 Elec 3100 360 360 517 673 673 517

4 Point Loads (lbs)

6 Point Loads (lbs)

50 Unitary Products Group

262292-YTG-B-0107

´;´:,'(*$6.(7,1*)25&85%
)5$0($1'$//'8&76833257685)$&(6

³

81,7%$6(

:22'1$,/(5

³0,1$%29(),1,6+('522)

&85%)5$0(

,168/$7,21

81,7%$6(5$,/6

&2817(5)/$6+,1*

&$1¶7675,3

,168/$7,21$1'522),1*0$7(5,$/

522)'(&.$1'68332576758&785(

´

25-1/4"

FIGURE 18:UNIT ROOF CURB DIMENSIONS

FIGURE 19:ROOF CURB DUCT OPENINGS DIMENSION

1. The 2” space betwee n the ducts allows for “jumping” an
existing roof joist.

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 install ed into the curb from the roof. All

electrical and gas line connections can be made inside
the curb.

FIGURE 20:CUT AWAY OF ROOF CURB

Unitary Products Group 51

262292-YTG-B-0107

Y

THERMOSTAT

TERMINALS

1

RC

RH

Y1

Y2

W1

W2

G

C

X1

X3

X4

A1

A2

T

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.

2

CONTROL BOARD

( RCB )

REHEAT

R

Y1

Y2

W1

W2

G

C

OCC

HUM

HUM

TERMINAL BLOCK

RH

1

2

3

4

TYPICAL

THERMOSTAT

RC

RH

Y1

Y2

G

W1

W2

C

R

Y1

Y2

G

W1

W2

OCC

C

DEHUMIDISTAT

( RCB )

REHEAT

CONTROL

BOARD

HUM

3

TERMINAL

BLOCK

RH

1

2

DEHUMIDISTAT

1

3

4

1

Dehumidistat closes on rise in humidity.

TERMINAL BLOCK TB1

GROUND

LUG

FACTORY OR FIELD

SUPPLIED DISCONNECT

THREE
PHASE
POWER
SUPPL

FIGURE 21:TYPICAL FIELD WIRING

52 Unitary Products Group

262292-YTG-B-0107

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 field­installed 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.

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.

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.

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.

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 self­draining 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.

INDOOR (EVAPORATOR) FAN ASSEMBLY

Fan shall be a belt drive assembly and include an adjustable­pitch 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 pres­sure 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.

Unitary Products Group 53

262292-YTG-B-0107

OUTDOOR (CONDENSER) FAN ASSEMBLY

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.

REFRIGERANT COMPONENTS

Compressors:

a. Shall be Scroll compressors internally protected with

internal high-pressure relief and over temperature
protection.

b. Shall have internal spring isolation and sound muffling to

minimize vibration and noise, and be externally isolated
on a dedicated, independent mounting.

Coils:

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.

b. Evaporator and Condenser coils shall be of the direct

expansion, draw-thru, design.

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.
e. All models shall have two independent circuits.
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.

UNIT CONTROLS

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.

c. Loss-of-charge/Low-pressure switch.

1. High-pressure switch.

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.

e. Unit shall operate with conventional thermostat designs

and have a low voltage terminal strip for easy hook-up.

f. Unit control board shall have on-board diagnostics and

fault code display.

g. Standard controls shall include anti-short cycle and low

voltage protection, and permit cooling operation down to
0 °F.

h. Control board shall monitor each refrigerant safety switch

independently.

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.

GAS HEATING SECTION (WR***N MODELS)

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:

a. Primary and auxiliary high-temperature limit switches.
b. Induced draft motor speed sensor.
c. Flame roll out switch (automatic reset).
d. Flame proving controls. Unit shall have two independent

stages of capacity.

ELECTRIC HEATING (WR***C/E MODELS)

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).

54 Unitary Products Group

262292-YTG-B-0107

UNIT OPERATING CHARACTERISTICS

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).

ELECTRICAL REQUIREMENTS

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.

STANDARD LIMITED WARRANTIES

• Compressor 5 Yea r s

• Heat Exchanger 10 Years

• Electric Heat Element 5 Years

• Other Parts 1 Year

OPTIONAL OUTDOOR AIR (Shall be made available by
either/or):

• 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.
Simultaneous economizer/compressor operation is also
possible. Dampers shall fully close on power loss.

• 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

the fully closed position when the indoor fan motor is de­energized. Dampers shall fully close on power loss.

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.

• PROPANE CONVERSION KIT - Contains new orifices
and gas valve parts to convert from natural to L.P. gas.
One per unit required.

• HIGH ALTITUDE - NATURAL GAS - Contains orifices
required for applications between 2000 and 6000 feet
altitude.

• HIGH ALTITUDE - PROPANE GAS - Contains orifices
required for applications between 2000 and 6000 feet
altitude. Must be used with propane conversion kit.

• BURGLAR BARS - Designed to work with above roof
curbs, depending on unit model. Fits duct openings of
curb supply and return air openings.

• SIDE DUCT FLANGE - Supply and return air duct flanges
for side duct applications. Do not use on units with power
exhaust.

• 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

• TECHNICOAT PHENOLIC COATED CONDENSER AND
EVAPORATOR COIL

• ELECTRONIC SINGLE ENTHALPY ECONOMIZER

• DIRTY FILTER SWITCH

•DOUBLE WALL

• PHASE MONITOR

• COIL GUARD

• POWERED GFI CONVENIENCE OUTLET

• NON-POWERED GFI CONVENIENCE OUTLET

• BAS CONTROLS (Simplicity® INTELLI-Comfort™, CPC,
JOHNSON, HONEYWELL, NOVAR)

Unitary Products Group 55

• BAS READY ECONOMIZER (BELIMO ACTUATOR
WITHOUT A CONTROLLER)

• HINGED FILTER DOOR ACCESS AND TOOLLESS
ACCESS PANELS

• HIGH SPEED DRIVE

• 2" PLEATED FILTERS

• 4" THROW AWAY FILTERS

• DISCONNECT SWITCH

• SUPPLY AIR SMOKE DETECTOR

• RETURN AIR SMOKE DETECTOR

• LOW SPEED DRIVE (WR240 & WR300 only)

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 5005 Norman
Products York OK
Group Drive 73069