York Sunline Magnadry Wr 180 User Manual

262292-YTG-C-0707

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.

TECHNICAL GUIDE

SUNLINE MagnaDRY™

GAS/ELECTRIC SINGLE

All units include:

• Powder Paint finish that meets ASTM-B-117 1000 hour

salt spray standards

• Two-stage cooling provided by dual independent

refrigeration circuits with expansion valves, filter-driers,

high and low pressure/loss of charge switches and

freezestats

PACKAGE AIR CONDITIONERS

WR 180, 240 & 300

• Scroll compressors

• 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)

15 thru 25 NOMINAL TONS

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

10.0 EER (25 TONS)

• Belt Drive Blower Motor with standard, high and low static

drive option

• Constant supply air volume (CV) with optional variable air

volume (VAV)

• Manufactured under the quality standards of ISO9001

• S implicity® Control Board

• Zero-25% fixed air damper with hood

• Copper tube/aluminum fin coils

• Hinged filter access and tool free latched doors

• Hinged tool free blower, blower motor, filters and electrical

panel access

• Rigging holes in base rails for lifting

• Single point power connection

• Complete factory package - tested, charged and wired

• CSA agency approvals on all units

WARRANTY

• One-year parts warranty

• A Five-year parts warranty on the compressors and

electric heat elements

• Ten-year parts warranty on the gas-fired heat exchangers

FOR DISTRIBUTION USE ONLY - NOT TO BE USED AT POINT OF RETAIL SALE

262292-YTG-C-0707

PRODUCT NOMENCLATURE

15-25 Ton Sunline MagnaDRY™ Model Number Nomenclature

W R 180 N24 A 2 A AA 1 0 1 2 4 A

Product Category

Product Style

W = A/C, Single Pkg.,

R-22 w/6-Row Evap.

A = Style A

Configuration Options (not required for all units)

Product Identifier

R = 90.1 w/Reheat

Nominal Cooling Capacity

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

180 = 15 Ton

240 = 20 Ton

300 = 25 Ton

Novar Controller, DFS, APS

Simplicity IntelliComfort Controller

Simplicity IntelliComfort Controller w/ModLinc

Heat Type and Nominal Heat Capacity

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 ModLINC (not available with factory installed BAS options)

Variable Air Volume, VFD and Manual Bypass (not available with factory installed BAS options)

Variable Air Volume, VFD and Manual Bypass with ModLINC (not available with factory installed BAS options)

Variable Air Volume, VFD (BAS ready)

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

Variable Air Volume, VFD and Manual Bypass (BAS ready)

Variable Air Volume, VFD Ready (for customer provided, field installed drive)

Variable Air Volume, VFD Ready with ModLINC (for customer-provided, field-installed drive)

2" Pleated filters

Electric Heat Options

4" Pleated filters

BAS Ready Economizer (2-10 V.D.C. Actuator without a controller)

Double Wall Construction

E18 = 18 KW

E36 = 36 KW

E54 = 54 KW

E72 = 72 KW

Heat Reclaim Coil Options (2 or 3 Row, 1-5/8" or 2-1/8" Stub Out) (WJ and WR models only)

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

Airflow

Product Generation

A = Std. Drive

1 = First Generation

2 = Second Generation

B = Std. Drive/Single Input Econo.

C = Std. Drive/Single Input Econo./Power Exhaust

(Downflow Only)

D = Std. Drive/Motorized Damper

Additional Options

Hinged Filter Door & Tool Free Access Cabinet

E = Std. Drive/Motorized Damper/Barometric Relief

J = Std. Drive/Single Input Econo./Barometric Relief

N = Hi Static Drive

Standard Cabinet

P = Hi Static Drive/Single Input Econo.

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

(Downflow Only)

R = Hi Static Drive/Motorized Damper

K = Hi Static Drive/Motorized Damper/Barometric Relief

S = Hi Static Drive/ Single Input Econo./Barometric Relief

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

6 = Low Static Drive/Motorized Damper/Barometric Relief

7 = Low Static Drive/Single Input Econo./Barometric Relief

AA = None

BA = Hinged Filter Door & Tool Free Access Panels

BB = Phase Monitor, Hinged Filter Door & Tool Free

Access Panels

AB = Phase Monitor

AC = Coil Guard

AD = Dirty Filter Switch

BC = Coil Guard, Hinged Filter Door & Tool Free

Access Panels

AE = Phase Monitor & Coil Guard

AF = Phase Monitor & Dirty Filter Switch

AG = Coil Guard & Dirty Filter Switch

AH = Phase Monitor, Coil Guard & Dirty Filter Switch

RC = Coil Guard & American Flag

TA = Technicoat Condenser Coil

TJ = Technicoat Evaporator Coil

TS = Technicoat Evaporator & Condenser Coils

BD = Dirty Filter Switch, Hinged Filter Door &

Tool Free Access Panels

BE = Phase Monitor & Coil Guard, Hinged Filter

Door & Tool Free Access Panels

BF = Phase Monitor & Dirty Filter Switch, Hinged

Filter Door & Tool Free Access Panels

BG = Coil Guard & Dirty Filter Switch, Hinged Filter

Door & Tool Free Access Panels

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

Hinged Filter Door & Tool Free Access Panels

Voltage

2 = 208/230-3-60

4 = 460-3-60

5 = 575-3-60

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

N = Options 2 & 3

P = Options 2 & 4

Q = Options 2, 3, & 4

R = Options 3 & 4

S = Option 5

T = Options 1 & 5

U = Options 1, 3, & 5

V = Options 1, 4, & 5

W = Options 1, 3, 4, & 5

X = Options 3 & 5

Y = Options 4 & 5

Z = Options 3, 4 & 5

B = Option 1

C = Option 2

D = Options 1 & 2

E = Option 3

F = Option 4

G = Options 1 & 3

H = Options 1 & 4

J = Options 1, 2 & 3

K = Options 1, 2, & 4

L = Options 1,3 & 4

M = Options 1, 2, 3, & 4

Options

1 = Disconnect

2 = Non-Pwr'd Conv. Outlet

3 = Smoke Detector S.A.

4 = Smoke Detector R.A.

5 = Pwr'd Conv. Outlet

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outdoor ambient without additional assistance. Optionally,

the control board can be programmed to lockout the

compressors when the outdoor air temperature is low or

when free cooling is available.

FEATURES

All models are available with a wide variety of factory-mounted

options such as stainless steel heat exchangers, phase

monitor, dirty filter switch, and coil guard to make them suitable

for almost every application.

• Anti-Short Cycle Protection - To aid compressor life, an

anti-short cycle delay is incorporated into the standard

controls. Compressor reliability is further ensured by

programmable minimum run times. For testing, the anti

short cycle delay can be temporarily overridden with the

push of a button.

All units are self-contained and assembled on full perimeter

base rails with holes in the four corners for overhead rigging.

Every unit is completely piped, wired, charged and tested at the

factory to simplify the field installation and to provide years of

dependable operation.

• Lead-Lag - An integrated Lead-Lag option allows equal

run time hours on all compressors, thereby extending the

life of all compressors. This option is selectable on the unit

control board.

All models (including those with an economizer) are suitable for

either bottom or horizontal duct connections. Models with

factory installed power exhaust are suitable for bottom

duct connections only. For bottom duct, you remove the

sheet metal panels from the supply and return air openings

through the base of the unit. For horizontal duct, you replace

the supply and return air panels on the rear of the unit with a

side duct flange accessory.

• Fan Delays - Fan on and fan off delays are fully

programmable. Furthermore, the heating and cooling fan

delay times are independent of one another. All units are

programmed with default values based upon their

configuration of cooling and heat.

• Safety Monitoring - The control board monitors the high

and low-pressure switches, the freezestats, the gas valve,

if applicable, and the temperature limit switch on gas and

electric heat units. The unit control board will alarm on

ignition failures, compressor lockouts and repeated limit

switch trips.

All models are available with these “factory mounted” outdoor

air damper options:

•

Single enthalpy economizer with or without power exhaust

BAS-ready economizer with or without power exhaust

Motorized outdoor air damper

• Nuisance Trip Protection and Strikes - To prevent

nuisance trouble calls, the control board uses a “three

times, you’re out” philosophy. The high and low-pressure

switches and the freezestats must trip three times within

two hours before the unit control board will lock out the

associated compressor.

Barometric Relief 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.

• On Board Diagnostics - Each alarm will energize a

trouble light on the thermostat, if so equipped, and flash

an alarm code on the control board LED. Each high and

low-pressure switch alarm as well as each freezestat

alarm has its own flash code. The control board saves the

five most recent alarms in memory, and these alarms can

be reviewed at any time. Alarms and programmed values

are retained through the loss of power.

All supply air blowers are equipped with a belt drive that can be

adjusted to meet the exact requirements of the job. A high static

drive option is available for applications with a higher CFM and/

or static pressure requirement. A variable air volume (VAV)

option using a variable frequency drive is available for

applications requiring a constant supply duct pressure. A

differential pressure transducer is used to monitor supply duct

static pressure and return a speed reference signal to the VFD

to control the output of the indoor blower motor.

All units have long lasting powder paint cabinets with 1000 hour

salt spray test approval under ASTM-B117 procedures.

All models are CSA approved.

• Warranty - All models include a one-year limited parts

warranty on the complete unit. Compressors and electric

heater elements carry a five-year warranty. Gas heat

exchangers carry a 10-year parts warranty.

All compressors include scroll compressors and internal

pressure relief. Every refrigerant circuit includes an expansion

valve, a liquid line filter-drier, a discharge line high pressure

switch and a suction line with a freezestat and low pressure/

loss of charge switch to protect all system components. A hot

gas bypass option, consisting of an adjustable compressor

discharge bypass valve, is available for low cooling load

applications.

• Gas Heat Operation - All gas heat units are built with two

heating sections for two equal stages of capacity control.

Each section includes a durable heat exchanger with

aluminized steel or optional stainless steel tubes, a

redundant gas valve, spark ignition, power venting, an

ignition module for 100% shut-off and all of the safety

controls required to meet the latest ANSI standards.

• S implicity® Controls - S implicity® control boards have

standardized a number of features previously available

only as options or by utilizing additional controls.

The gas supply piping can be routed into the heating

compartment through a hole in the base pan of the unit or

through a knockout in the piping panel on the front of the

unit.

• Low Ambient - An integrated low-ambient control allows

all units to operate in the cooling mode down to 0°F

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LOCATION OF VFD (Optional)

LOCATION OF VFD BYPASS (Optional)

FIGURE 1: UNIT CUTAWAY

• Electric Heat Operation - All electric heat models

(factory installed only) are wired for a single power source

and include a bank of nickel chromium elements mounted

at the discharge of the supply air blower to provide a high

velocity and uniform distribution of air across the heating

elements. Every element is fully protected against

excessive current and temperature by fuses and two

thermal limit switches.

“NORMAL” MODE

When the reheat control board (RCB) detects a need for

dehumidification (24VAC) at "HUM" via the field supplied

dehumidistat connected to RHTB-1 and RHTB-2 and there is

not a call for cooling, it energizes the hot gas relay (HGR),

which energizes the 3-way valve (SOL 3), the condenser coil

valve (SOL 2), and de-energizes the reheat coil bleed valve

(SOL 1). The Y1 signal is passed to the unit control board

(UCB), which engages circuit # 1, resulting in circuit #1 reheat

mode operation.

• The power supply wiring can be routed into the control

box through a threaded pipe connection in the base pan of

the unit or through a knockout in the wiring panel on the

front of the unit.

When the room thermostat calls for first stage cooling, with or

without a call for dehumidification, the RCB senses a signal

through "Y1", de-energizing the HGR, which de-energizes SOL

3 and SOL 2, and energizes SOL 1, engaging circuit # 1,

resulting in circuit #1 cooling mode operation.

• BAS Controls - York’s Magnum series units offer factory

mounted BAS controls such as Novar, Honeywell,

Johnson, and CPC.

REHEAT MODE SEQUENCE OF OPERATION

When the room thermostat calls for second stage cooling, the

RCB senses a signal through "Y1" & "Y2" and engages circuit

#1 and circuit #2 in the cooling mode.

The reheat control board allows the user to select two different

modes of operation via a jumper connection on the board. (See

Figure 2.) Each mode is described below. Refer to Figures 2 - 4

when reading this section.

Indoor blower operation is initiated upon a call for first stage

cooling, second stage cooling or dehumidification.

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".

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

for heating.

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.

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.

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.

All safety devices function as previously described.

"ALTERNATE” MODE

Indoor blower operation is initiated upon a call for first stage

cooling, second stage cooling or dehumidification.

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.

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.

When the room thermostat calls for first stage cooling while

there is still a call for dehumidification, no operational change is

All safety devices function as previously described.

OCC

COM

HGRR

HGR

HUM

DEHUMIDISTAT

HARNESS

CONNECTION

MODE

SELECTION

JUMPER

FIGURE 2: REHEAT CONTROL BOARD

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UCB

UNIT CONTROL

BOARD

RHB

REHEAT CONTROL

BOARD

HUM

HUMIDIFY

TERMINAL

RHR

REHEAT

RELAY

RHTB

REHEAT

TERMINAL

BLOCK

FIGURE 3: REHEAT CONTROLS - PART 1

REHEAT

SOLENOID 1

REHEAT

SOLENOID 3

REHEAT

SOLENOID 2

UCB

UNIT CONTROL

BOARD

RHB

REHEAT

CONTROL

BOARD

FIGURE 4: REHEAT CONTROLS - PART 2

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air panel. With horizontal ductwork, the accessory should

be mounted on the return air duct.

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.

• 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.

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.

• 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.

• BAS-READY ECONOMIZER - Includes a slide-in / plug-in

damper assembly with fully modulating spring-return

motor actuator with zero to 95-degree rotation capable of

introducing up to 100% outdoor air with nominal 1% leak-

age type dampers.

Actuator requires 2-10 VDC input from an external source,

such as a field-installed or factory-installed BAS controller.

BAS-ready actuators have an adjustable auxiliary end-

switch for optional power exhaust control.

An optional, factory-installed manual bypass switch avail-

able with factory-installed VFD can be found in the Blower

Motor Access compartment. The switch can be used to

either route power to the VFD for modulating control of the

blower motor, to bypass the drive and operate the motor

at full speed, or to power the drive (and not the motor) for

diagnostic purposes.

For units with optional VAV or Simplicity® Intelli-Comfort™

control, a factory-installed, dry bulb sensor determines if

outdoor air temperature is low enough to provide free-cool-

ing operation. (Field-installed humidity sensors for either

outdoor air or outdoor & return air streams are available for

single enthalpy and differential enthalpy configurations,

respectively).

Due to space limitations, VAV is not available with any of

the factory-installed BAS options described below, but is

available with ‘BAS-ready’ models. Terminal blocks are

provided in the control box for field wiring of the customer-

installed BAS.

The rainhood is painted to match the basic unit and must

be field-assembled before installing.

• POWER EXHAUST - Our 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.

BAS-ready economizer actuators have an adjustable

auxiliary end-switch to provide a range of damper positions

available to energize power exhaust. For units with optional

VAV, power exhaust is energized by means of a binary

output signal from the unit's VAV control board.

A ‘VFD-ready’ option provides the provisions for a cus-

tomer-installed drive. The unit comes with a mounting

bracket installed in the Blower Access compartment which

may accommodate other vendor’s drives depending on

their size. In order to utilize the unit’s mounting bracket, the

maximum recommended drive dimensions are as 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 drive will not fit in the allotted space, then it will have to

be mounted elsewhere; either within the building on a per-

pendicular wall which is not subjected to excessive temper-

ature, vibration, humidity, dust, corrosive gas, explosive gas,

etc., or within an appropriate enclosure rated for outside

installation to safeguard against moisture, dust and exces-

sive heat.

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 INTAKE DAMPER -

Includes a slide-in / plug-in damper assembly with a 2-

position, spring return motor actuator which opens to a pre-

set position whenever the supply air blower is operating

and will drive fully closed when the blower unit shuts down.

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 opera-

tion, a direct-acting pressure-modulating bypass control

valve installed on the system #1 discharge line is used to

divert high temperature, high pressure refrigerant around

the TXV in order to maintain a desired minimum evapora-

tor pressure. HGBP is standard on all units with VAV and

optional with CV units.

The rain hood is painted to match the basic unit and must

be field assembled before installing.

• BAROMETRIC RELIEF DAMPER - This damper option

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

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• FILTER OPTIONS - Standard units are shipped with 2”

throw-away filters installed. 2” pleated and 4” pleated

filters are offered as a factory installed option.

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 control-

ler is factory installed. Includes supply air sensor, return air

sensor, dirty filter indicator switch, and air proving switch.

• CONVENIENCE OUTLET - This 110 volt outlet can be

“powered” by the unit with a stepdown transformer or you

may order the unit with a “non-powered” convenience

outlet that can be wired in the field.

CPC BAS CONTROL - The Computer Process Controls

Model 810-3060 ARTC Advanced Rooftop building auto-

mation system controller is factory installed. Includes sup-

ply air sensor, return air sensor, dirty filter indicator switch

and air proving switch.

• 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.

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.

• 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

• 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.

contamination of the air stream.

• BAS - Building Automation System Controls

(available on two-system cooling product only).

S implicity® INTELLI-Comfort™ CONTROL - The York®

S implicity® INTELLI-Comfort™ control is factory installed. It

includes a supply air sensor, a return air sensor, and an out-

side 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. Construction 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-Com-

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.

fort™ using CO sensors. It uses an inside CO sensor to

perform Demand Ventilation. It can also use an Outside CO

sensor to perform Differential Demand Ventilation. It uses a

Patented Comfort Ventilation algorithm to provide comfort-

able 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 Unoccu-

pied Setpoints to the Occupied Setpoints just in time for the

Occupied Time Period to begin. The S implicity® INTELLI-

Comfort™ balances space temperature, ventilation air tem-

• 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-of-

phase condition.

• HIGH STATIC DRIVE - May include a belt, blower pulley,

motor pulley or a motor change to enhance blower

performance.

• LOW STATIC DRIVE - May include a belt, blower pulley,

motor pulley or a motor change when standard airflow is

not required. (WR300 & WR240 only)

perature, CO and humidity for ultimate comfort.

• 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.

S implicity® INTELLI-Comfort™ with ModLINC CON-

TROL - The York® S implicity® INTELLI-Comfort™ with

ModLINC control is factory installed. It includes all the fea-

tures of the INTELLI-Comfort™ control with an additional

control to translate communications from MODBUS to the

BACnet MSTP protocol.

• HINGED FILTER DOOR/”TOOL FREE” BLOWER AND

ACCESS PANELS (not hinged) - This option allows for

easy access and maintenance.

Novar® BAS CONTROL - The Novar® ETC-3 building

automation system controller is factory installed. Includes

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NOTE: Knobs are shipped separately within the unit to

prevent shipping damage. These must be field

installed for tool free operation.

• PROPANE - Burner orifices, pilot orifices and gas valve

parts are provided to convert a natural gas furnace to

propane.

• HINGED/"TOOL FREE" BLOWER, BLOWER MOTOR,

FILTER AND ELECTRIC ACCESS PANELS - This option

allows for complete hinged and tool free access to the unit's

blower, blower motor, filters and electrical panel sections.

• 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.

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.

• 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.

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 2-

position, spring return motor actuator which opens to

some pre-set position whenever the supply air blower is

operating and will drive fully closed when the blower unit

shuts down.

• 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.

The rain hood is painted to match the basic unit and must

be field-assembled before installing.

• 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.

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.

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

• CO SENSOR - Senses CO levels and automatically

overrides the economizer when levels rise above the

present limits.

They're designed to fit inside the base rails of the unit and

include both a wood nailing strip and duct hanger

supports.

• COIL GUARD - Customers can purchase a coil guard kit

to protect the condenser coil from damage. This is not a

hail guard kit.

• HIGH ALTITUDE NATURAL GAS - Burner orifices and

pilot orifices are provided for proper furnace operation at

altitudes up to 6,000 feet.

• PHASE MONITORS - Designed to prevent unit damage.

The phase monitor will shut the unit down in an out-of-

phase condition.

Unitary Products Group

262292-YTG-C-0707

TABLE 1: SOUND POWER RATING

-12

SOUND POWER (db 10

Watts)

ESP

IWG

BLOWER

UNIT

SIZE

Octave Band Centerline Frequency (Hz)

dB(A)

10Ft.²

CFM

SWL

dB(A)

RPM

BHP

125

250

500

1,000

2,000

4,000

8,000

WR180

WR240

6,000

8,000

1.00

1.30

1,080

1,120

1160

4.60

6.65

12.5

102

108

102

108

WR300 10,000

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

values provided are to be used for reference only. Calculation of dBA values cover matters of system design and the fan manufacture

has no way of knowing the details of each system. This constitutes and expectation to any specification or guarantee requiring a dBA

value or sound data in any other form than sound power level ratings.

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

TABLE 2: CAPACITY RATINGS - (ARI 360)

TABLE 3: GAS HEAT RATINGS

EER²

IPLV³

MODEL

MBH

MODEL

MBH INPUT

MBH OUTPUT

300

400

300

400

300

400

240

320

240

320

240

320

WR180N/S24

WR180N/S32

COOLING ONLY

WR180C/E00

WR240C/E00

WR300C/E00

180

240

300

11.9

11.0

10.0

12.7

11.3

10.6

WR240N/S24

WR240N/S32

COOLING WITH GAS HEAT

WR180N/S

WR300N/S24

WR300N/S32

180

240

300

11.9

11.0

10.0

12.7

11.3

10.6

WR240N/S

WR300N/S

NOTE:All gas units are two-stage heating.

COOLING WITH ELECTRIC HEAT

WR180E18

First stage is 50% of total.

S.S.E. = Steady State Efficiency (80%) - output divided by input.

180

178

240

238

300

298

11.9

11.7

11.0

10.8

10.0

9.8

12.7

12.5

11.3

11.1

10.6

10.4

WR180E36

WR180E54

WR180E72

WR240E18

WR240E36

WR240E54

For units with VFD and electric or gas heat, the

speed of the indoor blower motor continues to

be controlled by duct static pressure via the

VAV control board.

WR240E72

WR300E18

WR300E36

WR300E54

If there are VAV boxes present in the duct sys-

tem, the boxes must be driven to the full-open

position using a customer-supplied power

source to assure adequate airflow across elec-

tric heating elements or gas heat exchanger

tubes.

WR300E72

9.8

1. Certified in accordance with the Unitary Large Equipment

certification program which is based on ARI Standard 340/

360.

2. EER = Energy Efficiency Ratio at full load - the cooling

capacity in Btu’s per hour (Btuh) divided by the power input in

watts, expressed in Btuh per watt (Btuh/watt).

3. IPLV = Integrated Part Load Value.

Unitary Products Group

262292-YTG-C-0707

TABLE 4: COOLING CAPACITIES FOR WR180

Temperature of Air on Condenser Coil

Air on Evaporator Coil

75°F

85°F

Sensible Capacity (MBH)^*

Return Dry Bulb (°F)

Total Total²

Cap.¹Input

(MBH) (kW)

Total Total

(°F)

Return Dry Bulb (°F)

CFM

3750

Cap.

Input

(MBH) (kW)

217

200

184

165

227

210

192

172

171

237

219

201

180

178

247

228

209

187

186

236

217

194

193

245

224

201

200

10.8

10.5

10.2

9.9

113

132

117

108

129

135

103

100

101

107

114

210

193

177

160

219

202

185

167

166

228

210

192

174

173

237

219

200

181

180

226

207

187

186

233

213

193

192

11.8

11.6

11.3

11.0

11.9

11.7

11.4

11.1

12.1

11.8

11.5

11.3

11.2

12.2

11.9

11.6

11.4

11.3

11.9

11.7

11.4

11.3

12.0

11.7

11.4

111

130

116

106

127

132

101

104

115

156

163

100

130

161

171

127

146

165

178

153

161

170

186

176

184

193

191

199

200

100

128

153

113

143

164

171

126

159

175

178

107

138

170

186

150

187

193

163

199

200

114

148

159

126

152

111

140

162

166

123

155

171

173

134

169

180

145

181

186

157

192

11.0

10.6

10.3

10.0

11.1

10.8

10.4

10.1

11.2

10.9

10.5

10.2

10.9

10.6

10.3

10.2

10.9

10.6

10.3

128

158

166

117

143

168

173

136

157

178

180

171

185

186

184

192

4500

5250

6000

126

147

152

105

139

161

168

115

151

176

183

125

164

188

191

134

177

199

200

123

144

150

102

135

158

164

111

146

172

178

120

158

182

185

129

170

192

112

118

121

127

109

115

118

124

118

141

148

115

138

144

128

153

160

138

162

166

106

148

171

105

130

137

112

136

140

124

149

155

133

157

160

101

142

164

165

101

126

133

108

131

135

103

110

6750

7500

110

114

106

109

120

142

143

114

137

95°F

105°F

203

186

170

155

211

194

177

161

219

202

184

168

228

209

191

174

216

197

179

222

203

185

12.8

12.6

12.4

12.1

12.9

12.7

12.5

12.3

12.2

13.0

12.8

12.6

12.4

12.3

13.2

13.0

12.7

12.5

12.4

13.0

12.8

12.5

13.0

12.8

12.5

109

129

114

103

124

129

107

112

115

120

100

106

195

179

164

151

202

186

170

157

156

209

192

175

162

216

199

181

168

167

204

187

172

210

192

177

14.3

14.1

13.9

13.7

14.4

14.2

14.0

13.8

13.7

14.5

14.3

14.1

13.8

14.6

14.4

14.2

13.9

14.4

14.2

13.9

14.4

14.2

13.9

107

125

109

101

105

109

113

116

121

113

139

155

111

144

148

3750

4500

124

152

109

137

159

161

119

151

167

168

130

164

174

140

174

179

151

185

122

149

106

135

155

156

116

148

161

162

126

161

167

136

169

172

145

177

126

155

161

108

139

171

168

119

153

186

174

165

186

179

177

185

124

153

155

156

113

136

162

131

149

167

160

172

177

120

142

147

117

137

141

119

123

5250

6000

131

155

160

111

135

140

127

149

154

107

129

134

108

141

167

173

116

152

176

179

124

163

185

104

138

162

166

111

148

169

172

119

158

177

119

145

151

127

151

154

115

139

144

123

145

147

122

128

103

127

130

109

131

6750

7500

102

105

104

120

122

105

124

123

136

158

131

150

1. The capacities are gross ratings. For net capacity, deduct air blower motor, MBh = 3.415 x kW. Refer to the appropriate Blower

Performance table for the kW of the supply air blower motor.

2. These ratings include the condenser fan motors (total 1 kW) and the compressor motors but not the supply air blower motor.

All Sensible Capacity

Unitary Products Group

262292-YTG-C-0707

TABLE 4: COOLING CAPACITIES FOR WR180 (CONTINUED)

Temperature of Air on Condenser Coil

Air on Evaporator Coil

115°F

125°F

Sensible Capacity (MBH)^*

Return Dry Bulb (°F)

Sensible Capacity (MBH)^*

Return Dry Bulb (°F)

Total Total²

Cap.¹Input

(MBH) (kW)

Total Total

Cap.

CFM

(°F)

Input

(MBH) (kW)

187

172

157

147

193

177

162

152

151

198

183

167

156

204

188

172

161

160

193

176

165

198

181

169

15.8

15.6

15.4

15.2

15.9

15.7

15.5

15.2

15.9

15.7

15.5

15.3

15.2

16.0

15.8

15.6

15.4

15.3

15.8

15.6

15.4

15.3

15.8

15.6

15.3

15.2

104

121

104

103

106

179

165

151

143

184

169

155

147

146

188

173

159

151

150

193

177

162

154

182

166

158

157

186

170

162

161

17.3

17.1

16.9

16.7

17.3

17.1

16.9

16.7

16.6

17.4

17.2

17.0

16.8

16.7

17.4

17.2

17.0

16.8

16.7

17.2

17.0

16.8

16.7

17.1

16.9

16.7

16.6

101

117

100

110

146

147

108

142

145

3750

120

147

103

133

151

113

145

156

122

157

160

131

163

165

140

169

118

143

100

130

146

109

142

149

150

118

147

153

154

127

154

157

135

161

122

151

111

133

156

130

145

160

156

165

167

169

119

146

147

146

111

130

150

149

150

130

142

153

154

151

157

161

4500

5250

6000

114

133

136

111

128

130

114

117

109

111

124

144

148

103

124

127

121

139

141

100

118

120

134

156

160

106

144

163

164

113

153

169

111

133

137

119

138

140

131

151

153

102

139

156

157

108

148

161

108

127

130

115

131

133

110

114

104

107

6750

7500

113

115

100

116

107

109

108

126

143

122

135

136

1. The capacities are gross ratings. For net capacity, deduct air blower motor, MBh = 3.415 x kW. Refer to the appropriate Blower

Performance table for the kW of the supply air blower motor.

2. These ratings include the condenser fan motors (total 1 kW) and the compressor motors but not the supply air blower motor.

All Sensible Capacity

Unitary Products Group

262292-YTG-C-0707

TABLE 5: COOLING CAPACITIES FOR WR240

Temperature of Air on Condenser Coil

Air on Evaporator Coil

75°F

85°F

Sensible Capacity (MBH)^*

Return Dry Bulb (°F)

Total Total²

Cap.¹Input

(MBH) (kW)

Total Total

(°F)

Return Dry Bulb (°F)

CFM

5000

Cap.

Input

(MBH) (kW)

287

263

238

219

304

278

252

232

229

320

293

265

244

241

337

308

279

257

254

302

274

252

249

296

268

247

244

15.1

14.6

14.2

13.8

15.2

14.8

14.3

14.0

13.8

15.4

14.9

14.4

14.1

13.9

15.5

15.1

14.6

14.2

14.1

15.0

14.5

14.2

14.0

14.9

14.4

14.1

13.9

117

152

187

215

133

171

210

228

229

149

190

233

241

165

210

254

213

249

216

244

113

139

120

100

129

139

278

254

230

212

294

269

243

224

222

310

283

256

236

234

325

297

269

248

246

291

264

243

241

285

258

238

236

16.4

16.0

15.6

15.3

16.5

16.1

15.7

15.4

15.2

16.7

16.3

15.9

15.5

15.3

16.8

16.4

16.0

15.7

15.5

16.4

16.0

15.6

15.4

16.3

15.9

15.6

15.3

112

150

187

210

130

169

207

222

148

187

226

234

167

206

246

209

241

212

236

108

134

115

134

168

198

111

150

188

217

227

123

165

207

235

240

135

181

227

254

184

230

249

187

224

244

115

150

176

128

166

195

205

140

182

214

225

107

153

199

233

245

155

202

239

245

157

205

244

131

165

198

108

146

185

214

221

120

162

204

230

234

131

178

224

246

180

227

241

183

231

236

112

146

172

124

162

191

199

136

179

210

219

102

149

195

230

239

151

198

233

237

153

201

236

131

157

106

144

173

183

115

157

189

200

124

170

205

217

126

173

210

216

128

176

215

127

153

102

140

169

177

111

153

185

193

120

166

201

210

122

169

204

208

124

172

207

6000

7000

8000

122

151

161

118

147

154

124

132

164

175

107

138

149

127

159

167

102

134

142

176

188

144

181

187

113

148

160

115

152

158

137

172

181

140

174

179

108

143

152

110

145

150

8500

9000

147

186

118

157

142

177

113

148

95°F

105°F

270

246

222

206

285

259

234

217

216

299

273

247

228

227

314

286

259

239

238

280

253

234

233

274

248

229

228

17.6

17.3

17.0

16.7

17.8

17.5

17.2

16.8

16.6

17.9

17.6

17.3

17.0

16.7

18.1

17.8

17.5

17.1

16.9

17.7

17.4

17.1

16.8

17.7

17.4

17.1

16.8

105

147

188

205

127

166

204

216

149

184

220

227

171

203

236

238

206

232

233

209

227

228

123

149

104

130

111

255

234

212

195

269

246

224

206

205

283

259

236

217

216

297

272

248

228

226

266

242

223

222

261

237

218

217

19.4

19.1

18.8

18.5

19.6

19.3

19.0

18.7

18.1

19.8

19.5

19.2

18.8

18.3

19.9

19.6

19.3

19.0

18.4

19.6

19.3

18.9

18.4

19.5

19.2

18.9

18.3

103

143

183

192

127

162

197

204

205

150

180

211

216

173

199

225

226

202

220

222

206

216

217

119

144

100

125

105

127

162

197

104

143

181

210

216

116

158

201

224

227

128

174

220

238

177

224

233

179

227

228

108

143

169

120

159

188

193

132

175

207

212

145

191

226

232

147

194

227

230

150

197

228

124

158

190

101

139

177

202

205

112

154

197

214

216

123

169

216

226

172

212

222

175

209

217

104

139

164

116

155

183

185

128

170

201

204

140

186

220

223

143

190

218

220

145

193

217

5000

6000

136

165

170

106

149

181

186

115

162

196

203

117

165

197

200

120

168

198

113

142

147

132

160

162

102

144

175

178

110

157

190

193

113

160

188

190

115

163

186

187

109

137

139

120

125

129

134

114

117

123

125

131

134

100

129

130

103

126

7000

8000

123

155

160

118

149

152

132

167

173

135

168

171

103

138

144

105

138

141

127

161

164

130

159

160

8500

9000

138

168

169

108

139

133

156

157

1. The capacities are gross ratings. For net capacity, deduct air blower motor, MBh = 3.415 x kW. Refer to the appropriate Blower

Performance table for the kW of the supply air blower motor.

2. These ratings include the condenser fan motors (total 1 kW) and the compressor motors but not the supply air blower motor.

All Sensible Capacity

Unitary Products Group

262292-YTG-C-0707

TABLE 5: COOLING CAPACITIES FOR WR240 (CONTINUED)

Temperature of Air on Condenser Coil

Air on Evaporator Coil

115°F

125°F

Sensible Capacity (MBH)^*

Return Dry Bulb (°F)

Sensible Capacity (MBH)^*

Return Dry Bulb (°F)

Total Total²

Cap.¹Input

(MBH) (kW)

Total Total

Cap.

CFM

(°F)

Input

(MBH) (kW)

240

221

202

185

253

233

214

195

194

267

246

225

206

205

280

258

236

216

215

252

231

211

210

247

226

206

205

21.3

21.0

20.7

20.4

21.4

21.1

20.8

20.5

19.7

21.6

21.3

21.0

20.7

19.8

21.8

21.5

21.1

20.8

20.0

21.4

21.1

20.8

19.9

21.3

21.0

20.7

19.8

101

140

179

184

126

158

190

194

151

176

202

205

176

195

213

215

198

209

210

202

205

115

139

120

104

131

100

108

116

117

124

125

225

208

192

175

238

220

203

185

184

250

232

214

195

194

263

244

225

205

204

238

220

200

199

233

215

195

194

23.1

22.8

22.5

22.2

23.3

23.0

22.7

22.3

21.2

23.4

23.1

22.8

22.5

21.4

23.6

23.3

23.0

22.7

21.5

23.2

22.9

22.6

21.5

23.1

22.8

22.5

21.4

100

136

174

175

126

154

183

184

151

172

192

193

194

176

190

204

194

198

199

194

111

134

115

100

126

123

103

100

110

108

120

155

184

101

135

159

112

150

177

124

166

196

135

181

214

138

185

209

210

141

190

205

117

151

174

5000

131

154

108

146

172

170

119

161

190

187

130

177

205

204

134

181

200

199

137

186

194

135

173

194

108

150

192

205

119

165

211

215

168

201

210

172

190

205

131

169

184

105

146

188

194

117

160

204

164

189

199

168

171

194

6000

7000

8000

127

154

123

149

147

139

169

113

143

135

163

161

108

137

134

105

152

184

108

155

179

180

111

159

175

100

147

178

175

103

151

170

169

106

155

163

122

154

125

149

117

148

145

120

140

139

118

115

8500

9000

119

114

110

108

101

102

129

144

124

132

1. The capacities are gross ratings. For net capacity, deduct air blower motor, MBh = 3.415 x kW. Refer to the appropriate Blower

Performance table for the kW of the supply air blower motor.

2. These ratings include the condenser fan motors (total 1 kW) and the compressor motors but not the supply air blower motor.

All Sensible Capacity

Unitary Products Group

262292-YTG-C-0707

TABLE 6: COOLING CAPACITIES FOR WR300

Temperature of Air on Condenser Coil

Air on Evaporator Coil

75°F

85°F

Sensible Capacity (MBH)^*

Return Dry Bulb (°F)

Total Total²

Cap.¹Input

(MBH) (kW)

Total Total

(°F)

Return Dry Bulb (°F)

CFM

6250

Cap.

Input

(MBH) (kW)

331

315

299

273

380

362

343

313

305

378

360

342

312

304

376

358

340

310

303

356

338

309

301

354

336

307

299

17.7

17.2

16.7

16.3

20.7

20.1

19.5

19.0

18.5

21.0

20.3

19.7

19.2

18.7

21.2

20.6

19.9

19.4

18.9

20.6

20.0

19.4

18.9

20.7

20.1

19.5

19.0

186

212

237

265

217

247

277

305

220

249

279

304

222

252

282

303

259

290

301

266

299

162

187

213

257

189

218

248

299

305

190

220

250

301

304

192

222

252

303

228

259

300

301

234

265

299

137

163

188

231

160

189

219

269

288

161

191

221

270

290

162

192

222

272

291

197

228

279

295

202

234

286

299

113

138

164

207

131

161

190

240

259

131

161

191

241

260

132

162

192

242

261

166

197

248

264

170

202

255

267

322

303

284

259

371

349

327

298

292

370

348

326

298

292

370

348

326

297

292

347

326

297

291

347

325

296

291

20.0

19.4

18.8

18.4

23.3

22.6

21.9

21.4

20.9

23.4

22.7

22.0

21.5

21.0

23.6

22.9

22.1

21.7

21.1

23.0

22.3

21.8

21.3

23.1

22.4

21.9

21.4

168

199

231

253

197

234

271

292

200

237

274

292

203

240

278

292

248

284

291

255

291

144

175

206

249

168

205

242

289

292

170

207

245

290

292

172

210

248

292

216

255

291

223

263

291

119

151

182

223

139

176

213

260

279

141

178

215

263

282

142

180

217

266

285

185

224

274

288

191

230

282

291

109

149

114

140

182

102

132

161

211

230

102

132

162

212

231

102

132

162

212

231

135

166

217

233

139

170

223

235

126

158

198

110

147

184

231

250

111

148

186

233

253

112

150

187

236

255

154

193

243

257

159

198

250

259

102

133

174

118

155

202

221

119

156

204

223

119

157

205

225

123

162

211

226

126

166

217

227

115

158

103

133

182

201

102

132

182

201

102

132

182

201

104

135

187

202

107

138

191

203

7500

7750

8000

126

173

192

127

174

194

127

175

195

131

180

195

8650

9300

134

185

194

95°F

105°F

313

291

268

245

362

336

310

283

279

362

337

311

283

280

363

338

312

284

281

339

313

285

282

340

314

286

283

22.2

21.5

20.8

20.5

25.8

25.0

24.2

23.8

23.2

25.9

25.1

24.3

23.9

23.3

26.0

25.2

24.3

23.9

23.4

25.3

24.5

24.1

23.6

25.5

24.7

24.3

23.8

150

187

200

241

177

220

264

279

180

224

269

280

183

229

274

281

236

278

282

244

283

125

163

200

241

148

192

235

279

150

195

239

280

153

198

243

281

205

252

282

211

260

283

101

138

176

214

119

163

206

251

270

121

165

210

255

275

123

168

213

259

279

173

220

268

281

179

227

277

283

103

141

297

276

256

232

343

319

295

268

266

343

319

296

268

266

343

320

296

269

266

321

297

270

267

322

298

271

268

24.4

23.7

23.1

22.6

28.3

27.6

26.8

26.3

25.8

28.5

27.7

26.9

26.4

25.9

28.6

27.8

27.1

26.6

26.1

27.9

27.1

26.6

26.1

28.0

27.2

26.7

26.2

139

180

220

230

166

212

257

266

171

216

260

266

176

219

263

266

227

266

267

235

268

117

155

194

225

137

183

229

262

266

140

186

232

264

266

142

189

236

266

196

245

267

203

253

268

122

151

127

113

148

170

114

151

190

134

178

222

241

136

180

226

245

137

183

229

248

142

189

237

249

147

195

244

250

131

170

199

109

154

200

234

256

110

156

203

238

260

112

159

206

241

264

165

213

250

266

170

221

259

268

107

146

175

125

171

205

227

127

173

208

230

129

175

211

233

133

182

219

235

138

189

226

236

6250

7500

127

165

105

149

194

213

106

150

196

215

107

152

198

218

111

157

205

218

114

163

212

218

120

165

184

142

177

198

7750

8000

121

166

186

144

179

201

114

149

171

122

168

188

126

174

187

145

181

203

102

151

187

203

106

156

194

203

115

150

173

119

156

172

8650

9300

130

180

185

124

162

171

1. The capacities are gross ratings. For net capacity, deduct air blower motor, MBh = 3.415 x kW. Refer to the appropriate Blower

Performance table for the kW of the supply air blower motor.

2. These ratings include the condenser fan motors (total 1 kW) and the compressor motors but not the supply air blower motor.

All Sensible Capacity

Unitary Products Group

262292-YTG-C-0707

TABLE 6: COOLING CAPACITIES FOR WR300 (CONTINUED)

Temperature of Air on Condenser Coil

Air on Evaporator Coil

115°F

125°F

Sensible Capacity (MBH)^*

Return Dry Bulb (°F)

Sensible Capacity (MBH)^*

Return Dry Bulb (°F)

Total Total²

Cap.¹Input

(MBH) (kW)

Total Total

Cap.

CFM

(°F)

Input

(MBH) (kW)

281

262

243

220

324

302

280

254

252

324

302

280

254

252

323

302

280

253

252

303

281

254

253

304

282

255

254

26.6

26.0

25.3

24.8

30.9

30.2

29.4

28.8

28.4

31.1

30.4

29.6

29.0

28.5

31.3

30.5

29.8

29.2

28.7

30.5

29.8

29.2

28.7

30.5

29.8

29.1

28.7

128

172

216

218

155

203

250

252

162

207

251

252

168

210

252

218

253

226

254

108

148

188

209

127

174

222

245

252

129

177

225

249

252

131

180

229

252

187

238

253

194

247

254

116

137

113

107

131

155

265

248

230

208

305

285

265

239

304

284

264

239

238

303

284

264

238

284

265

239

285

265

240

239

28.8

28.2

27.5

26.9

33.5

32.8

32.0

31.3

30.9

33.7

33.0

32.3

31.6

31.1

34.0

33.2

32.5

31.8

31.4

33.1

32.4

31.7

31.3

33.0

32.3

31.6

31.2

122

165

207

149

194

239

157

198

238

164

201

238

209

239

218

239

111

122

101

114

141

124

164

185

100

140

161

117

164

188

213

118

166

190

215

120

168

193

218

125

175

201

220

129

182

208

221

141

183

193

116

166

215

228

239

118

168

218

233

238

120

171

222

238

178

231

239

185

239

117

159

170

137

186

199

227

139

189

202

230

141

191

205

233

147

200

214

236

153

208

222

239

6250

135

146

109

158

171

198

110

160

173

201

111

161

175

203

116

168

182

205

121

176

190

207

146

193

217

241

100

148

196

220

245

101

150

199

223

248

156

206

232

251

162

214

241

254

7500

7750

8000

136

159

184

129

142

170

137

161

186

108

132

157

130

143

171

101

114

142

138

163

188

144

169

189

108

132

158

113

138

157

131

145

173

137

151

174

101

115

143

106

120

143

8650

9300

150

176

189

117

144

157

143

158

175

111

126

143

1. The capacities are gross ratings. For net capacity, deduct air blower motor, MBh = 3.415 x kW. Refer to the appropriate Blower

Performance table for the kW of the supply air blower motor.

2. These ratings include the condenser fan motors (total 1 kW) and the compressor motors but not the supply air blower motor.

All Sensible Capacity

Unitary Products Group

262292-YTG-C-0707

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

Temperature of Air on Condenser Coil

Air on Evaporator Coil

75°F

85°F

Sensible Capacity (MBH)^*

Return Dry Bulb (°F)

90 85 80 75 70 65

Sensible Capacity (MBH)^*

Return Dry Bulb (°F)

Total

Cap.¹

(MBH)

Total²

Input

(kW)

Total

CFM

(°F)

Cap.

Input

(kW)

(MBH)

90 85 80 75 70 65

10.6

10.1

9.9

23 21 19 16 14 11

44 42 39 37 35 32

48 46 44 41 39 36

32 29 25 22 19 15

59 56 53 49 46 43

61 59 58 55 51 48

40 36 32 28 23 19

73 70 66 61 57 53

73 73 72 68 64 60

49 44 39 33 28 23

75 74 72 66 61 56

75 75 75 70 65 59

58 52 46 39 33 27

78 78 78 71 65 59

78 78 78 72 65 59

95°F

11.2

10.8

10.6

11.3

10.8

10.7

11.3

10.9

10.7

11.3

10.9

10.7

11.3

10.9

10.7

18 16 14 12 10

4500

5250

6000

6750

7500

35 34 32 30 28 26

39 37 35 34 32 30

26 24 21 18 15 12

53 50 47 44 41 39

55 54 53 50 47 44

35 31 27 24 20 16

70 66 62 58 55 51

70 70 70 66 62 58

43 38 34 29 25 20

72 70 68 63 59 55

72 72 72 67 63 58

51 45 40 34 29 24

74 74 74 68 63 58

105°F

10.7

10.2

10.0

10.8

10.3

10.0

10.8

10.2

10.0

10.7

10.2

10.0

11.8

11.4

11.3

11.8

11.5

11.4

11.9

11.5

11.4

11.9

11.5

11.4

11.9

11.5

11.4

12 11 10

12.5

12.1

12.6

12.2

12.1

12.6

12.2

12.1

12.6

12.2

12.1

12.6

12.2

12.1

4500

5250

6000

6750

7500

27 25 24 23 22 20

30 29 27 26 25 24

21 19 16 14 12 10

46 44 41 39 37 35

48 48 47 45 43 40

29 26 23 20 17 14

65 62 59 56 52 49

67 67 67 63 60 57

36 32 29 25 21 17

67 66 64 60 57 53

68 68 68 64 60 57

43 39 34 30 25 21

70 70 70 65 61 56

115°F

21 20 19 18 17 16

23 22 21 20 19 18

16 15 13 11

41 40 38 36 34 33

43 42 42 40 38 36

24 22 19 16 14 11

62 60 57 54 52 49

63 63 62 60 57 55

31 28 24 21 18 15

63 62 61 57 54 51

64 64 63 60 57 54

37 34 30 26 22 18

64 64 64 60 57 53

64 64 64 61 57 53

125°F

13.3

12.8

13.3

12.9

12.8

13.4

12.9

13.4

12.9

13.4

12.9

14.0

13.5

14.1

13.6

14.1

13.6

14.1

13.6

14.1

13.6

4500

5250

6000

6750

7500

15 14 14 13 13 12

16 15 15 14 14 13

12 11

37 36 35 33 32 31

37 37 36 35 34 33

19 17 15 13 11

59 57 55 53 51 49

59 59 58 56 54 52

25 23 20 18 15 12

59 58 57 54 52 49

59 59 59 56 53 51

32 28 25 22 19 16

59 59 59 56 53 49

59 59 59 56 53 50

33 31 31 30 29 29

31 31 31 30 30 29

14 13 11

55 54 53 52 50 49

54 54 54 53 51 50

20 18 16 14 12 10

54 54 53 52 49 47

54 54 54 52 50 48

26 23 21 18 16 13

54 54 54 51 48 46

54 54 54 52 49 46

1. The capacities are gross ratings. For net capacity, deduct air blower motor, MBh = 3.415 x kW. Refer to the appropriate Blower

Performance table for the kW of the supply air blower motor.

2. These ratings include the condenser fan motors (total 1 kW) and the compressor motors but not the supply air blower motor.

All Sensible Capacity

Unitary Products Group

262292-YTG-C-0707

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

Temperature of Air on Condenser Coil

Air on Evaporator Coil

75°F

85°F

Sensible Capacity (MBH)^*

Return Dry Bulb (°F)

90 85 80 75 70 65

Sensible Capacity (MBH)^*

Return Dry Bulb (°F)

90 85 80 75 70 65

Total

Cap.¹

(MBH)

Total²

Input

(kW)

Total

CFM

(°F)

Cap.

Input

(kW)

(MBH)

100

109

102

119

110

113

105

107

15.9

15.1

15.8

15.1

15.0

15.7

15.0

14.9

15.7

15.0

14.9

15.7

14.9

20 18 16 14 12 10

44 42 40 38 36 35

50 48 46 45 43 41

31 28 24 21 18 15

68 65 62 59 56 53

74 74 71 68 64 61

42 37 33 29 24 20

92 88 83 79 75 70

98 98 95 91 86 82

42 38 33 29 25 21

88 88 85 80 76 72

93 93 92 87 83 79

42 38 34 30 26 22

88 88 86 82 78 73

88 88 88 84 80 76

95°F

103

112

103

107

101

16.6

15.9

15.8

16.5

15.8

15.7

16.4

15.8

15.7

16.4

15.8

15.7

16.4

15.8

15.7

13 12 11

6000

7000

8000

8450

8900

30 29 27 26 25 23

34 33 32 30 29 28

25 23 20 18 15 12

57 54 52 49 47 44

63 63 60 58 55 52

38 34 30 26 22 18

84 80 76 72 69 65

93 93 89 85 81 77

39 35 31 27 23 19

84 84 80 76 72 68

88 88 86 82 78 75

40 36 32 29 25 21

84 84 83 79 75 71

84 84 84 80 76 72

105°F

106

101

17.3

16.7

16.5

17.2

16.6

16.4

17.2

16.6

16.4

17.2

16.6

16.4

17.2

16.6

16.4

18.2

17.7

17.4

18.2

17.7

17.4

18.2

17.7

17.4

18.1

17.6

17.3

18.1

17.6

17.3

6000

7000

8000

8450

8900

16 15 14 14 13 12

18 18 17 16 16 15

20 18 16 14 12 10

46 44 42 40 38 35

53 52 50 48 46 44

34 30 27 23 20 16

76 73 69 66 62 59

87 86 83 79 76 72

36 32 29 25 22 18

78 78 75 71 68 64

83 83 81 77 74 70

38 35 31 27 24 20

79 79 79 75 72 67

79 79 79 75 72 68

115°F

15 14 12 11

36 35 33 32 30 28

43 43 41 40 38 36

28 25 22 19 16 13

65 62 59 57 54 51

78 77 74 71 68 65

29 26 23 20 17 14

68 66 63 60 57 54

74 74 72 69 67 64

30 27 24 21 19 16

71 69 66 63 60 57

71 71 71 68 65 62

125°F

19.1

18.7

18.3

19.1

18.7

18.3

19.2

18.7

18.3

19.1

18.6

18.2

19.0

18.5

18.2

20.0

19.7

19.2

20.1

19.7

19.2

20.1

19.8

19.3

20.0

19.7

19.2

19.9

19.5

19.0

6000

7000

8000

8450

8900

11 10

27 26 25 24 23 21

34 33 32 31 30 29

21 19 17 15 13 10

54 52 50 47 45 43

68 67 65 62 60 58

22 19 17 15 13 11

55 53 51 48 46 44

65 65 64 61 59 57

22 20 18 16 14 12

55 53 51 49 47 45

63 63 63 61 59 56

18 17 16 16 15 14

25 24 24 23 22 22

15 14 12 11

43 41 40 38 37 35

58 57 56 54 52 51

14 13 12 10

41 40 38 37 36 34

56 56 55 54 52 51

13 12 11 10

40 38 37 36 35 33

54 54 54 53 52 51

1. The capacities are gross ratings. For net capacity, deduct air blower motor, MBh = 3.415 x kW. Refer to the appropriate Blower

Performance table for the kW of the supply air blower motor.

2. These ratings include the condenser fan motors (total 1 kW) and the compressor motors but not the supply air blower motor.

All Sensible Capacity

Unitary Products Group

262292-YTG-C-0707

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

Temperature of Air on Condenser Coil

Air on Evaporator Coil

75°F

85°F

Sensible Capacity (MBH)^*

Return Dry Bulb (°F)

90 85 80 75 70 65

Sensible Capacity (MBH)^*

Return Dry Bulb (°F)

Total

Cap.¹

(MBH)

Total²

Input

(kW)

Total

CFM

(°F)

Cap.

Input

(kW)

(MBH)

90 85 80 75 70 65

140

128

117

139

127

116

138

126

115

138

125

115

137

125

114

21.1

19.9

18.8

21.2

20.1

18.9

21.3

20.2

19.0

21.4

20.2

19.1

21.4

20.2

19.1

19 17 16 14 12 10

88 86 84 82 80 78

104 102 100 98 96 94

21 19 17 15 12 10

88 86 84 82 80 78

104 102 100 98 96 94

22 20 18 15 13 11

88 86 84 82 80 78

104 102 100 98 96 93

24 22 19 17 15 12

98 95 92 90 88 85

109 108 107 105 102 100

26 23 21 19 16 14

107 104 100 98 96 93

114 114 114 112 109 107

95°F

129

119

113

128

118

112

127

117

111

127

117

111

127

117

111

22.3

21.1

20.3

22.4

21.2

20.4

22.5

21.3

20.4

22.5

21.3

20.5

22.5

21.3

20.5

12 11

68 67 66 65 64 62

81 80 79 78 77 76

13 12 10

75 74 73 71 70 69

90 88 87 86 84 83

14 13 11 10

82 81 79 78 76 75

98 96 95 93 92 91

7500

7750

8000

8500

9000

16 15 13 12 10

95 94 92 90 89 87

104 104 103 101 100 98

18 17 15 13 12 10

108 107 105 103 102 100

111 111 111 109 107 106

105°F

118

110

108

117

109

107

116

108

106

117

109

107

118

110

108

23.4

22.3

21.7

23.5

22.3

21.8

23.6

22.4

21.9

23.6

22.4

21.9

23.6

22.4

21.9

108

101

107

100

106

107

100

108

101

24.8

23.6

23.1

24.9

23.7

23.2

24.9

23.8

23.3

24.9

23.8

23.3

24.9

23.8

23.3

7500

7750

8000

8500

9000

49 48 48 48 47 47

59 59 58 58 57 57

62 62 61 61 60 60

75 75 74 73 73 72

91 90 90 89 89 88

93 92 92 91 90 89

99 99 99 98 97 96

11 10

31 31 30 30 30 29

37 37 36 36 36 35

51 50 50 49 48 48

60 59 59 58 58 57

70 69 69 68 67 66

82 82 81 80 79 79

79 79 78 77 76 75

87 87 86 85 84 83

110 108 107 106 105 104

108 108 108 107 106 105

115°F

89 88 87 86 85 84

92 92 91 90 89 88

125°F

26.2

25.0

24.6

26.2

25.0

24.6

26.3

25.1

24.7

26.3

25.1

24.7

26.3

25.1

24.7

27.6

26.4

26.0

27.6

26.4

26.0

27.6

26.5

26.1

27.7

26.5

26.1

27.7

26.5

26.1

7500

7750

8000

8500

9000

14 13 13 12 12 12

15 15 15 14 14 13

39 39 38 37 37 36

45 44 43 43 42 41

65 64 63 62 62 61

74 73 72 71 70 69

66 65 64 63 62 61

75 74 73 72 71 70

28 27 27 26 25 24

29 29 28 27 27 26

60 59 58 57 56 55

65 64 63 62 61 60

53 52 50 49 48 47

63 62 60 59 58 57

47 45 43 42 40 39

61 59 58 56 55 54

68 66 65 64 63 62

77 76 74 73 72 71

1. The capacities are gross ratings. For net capacity, deduct air blower motor, MBh = 3.415 x kW. Refer to the appropriate Blower

Performance table for the kW of the supply air blower motor.

2. These ratings include the condenser fan motors (total 1 kW) and the compressor motors but not the supply air blower motor.

All Sensible Capacity

Unitary Products Group

262292-YTG-C-0707

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FIGURE 6: WR180 MOISTURE REMOVAL - NORMAL MODE

Unitary Products Group

262292-YTG-C-0707

20-Ton Moisture Removal @ 8000 cfm

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

160

140

120

100

105

Outdoor Temp ºF

75/71

80/71

75/67

85/71

80/67

85/67

FIGURE 7: WR240 MOISTURE REMOVAL - ALTERNATE MODE

20-Ton Moisture Removal @ 8000 cfm

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

105

Outdoor Temp ºF

75/71

80/71

75/67

85/71

FIGURE 8: WR240 MOISTURE REMOVAL - NORMAL MODE

Unitary Products Group

262292-YTG-C-0707

25-Ton Moisture Removal @ 8000 cfm

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

180

160

140

120

100

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

105

Outdoor Temp ºF

75/71

80/71

75/67

85/71

80/67

FIGURE 10:WR300 MOISTURE REMOVAL - NORMAL MODE

Unitary Products Group

262292-YTG-C-0707

use the indoor blower tables for high altitude applications,

certain corrections are necessary.

CFM, STATIC PRESSURE, AND POWER - ALTITUDE

AND TEMPERATURE CORRECTIONS

The information below should be used to assist in application of

product when being applied at altitudes at or exceeding 1000

feet above sea level.

A centrifugal fan is a "constant volume" device. This means

that, if the rpm remains constant, the CFM delivered is the

same regardless of the density of the air. However, since the

air at high altitude is less dense, less static pressure will be

generated and less power will be required than a similar

application at sea level. Air density correction factors are

shown in Table 10 and Figure 11.

The air flow rates listed in the standard blower performance

tables are based on standard air at sea level. As the altitude or

temperature increases, the density of air decreases. In order to

TABLE 10: ALTITUDE CORRECTION FACTORS

ALTITUDE (FEET)

AIR TEMP

1000

1.022

1.002

0.982

0.964

0.947

0.929

0.912

2000

0.986

0.966

0.948

0.930

0.913

0.897

0.880

3000

0.950

0.931

0.913

0.896

0.880

0.864

0.848

4000

0.916

0.898

0.880

0.864

0.848

0.833

0.817

5000

0.882

0.864

0.848

0.832

0.817

0.802

0.787

6000

0.849

0.832

0.816

0.801

0.787

0.772

0.758

7000

0.818

0.802

0.787

0.772

0.758

0.744

0.730

8000

0.788

0.772

0.757

0.743

0.730

0.716

0.703

9000

0.758

0.743

0.729

0.715

0.702

0.689

0.676

10000

0.729

0.715

0.701

0.688

0.676

0.663

0.651

1.060

1.039

1.019

1.000

0.982

0.964

0.946

100

The examples below will assist in determining the airflow

performance of the product at altitude.

blower tables to select the blower speed and the BHP

requirement.

Example 1: What are the corrected CFM, static pressure, and

BHP at an elevation of 5,000 ft. if the blower performance data

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

Solution:

As in the example above, no temperature

information is given so 70°F is assumed.

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

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

conditions.

Solution: At an elevation of 5,000 ft the indoor blower will still

deliver 6,000 CFM if the rpm is unchanged. However, Table 10

must be used to determine the static pressure and BHP. Since

no temperature data is given, we will assume an air

temperature of 70°F. Table 10 shows the correction factor to

be 0.832.

Sea level static pressure = 1.5 / .832 = 1.80"

Enter the blower table at 6000 sCFM and static pressure of

1.8". The rpm listed will be the same rpm needed at 5,000 ft.

Corrected static pressure = 1.5 x 0.832 = 1.248 IWC

Corrected BHP = 4.0 x 0.832 = 3.328

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

This value must be corrected for elevation.

Example 2: A system, located at 5,000 feet of elevation, is to

BHP at 5,000 ft = 3.2 x .832 = 2.66

deliver 6,000 CFM at a static pressure of 1.5". Use the unit

Unitary Products Group

262292-YTG-C-0707

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FIGURE 11:ALTITUDE/TEMPERATURE CONVERSION FACTOR

Unitary Products Group

262292-YTG-C-0707

TABLE 11: WR180 BLOWER PERFORMANCE - 15 TON STANDARD DRIVE (COOLING ONLY) DOWNFLOW

Blower Performance (Downflow Discharge)

ESP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP

0.2 6284 956 3.50 4.20 6080 922 3.14 3.77 5800 889 2.84 3.41 5514 856 2.536 3.04 5290 821 2.209 2.65 5056 788 1.992 2.39

0.4 5918 957 3.25 3.89 5718 923 2.92 3.51 5434 889 2.61 3.13 5228 857 2.32 2.78 4914 822 2.04 2.45 4668 789 1.85 2.22

0.6 5590 958 3.05 3.66 5379 925 2.74 3.28 5098 891 2.41 2.90 4829 858 2.18 2.61 4452 823 1.81 2.17 4175 790 1.67 2.01

0.8 5226 959 2.79 3.34 4985 926 2.45 2.95 4639 893 2.18 2.62 4336 860 1.91 2.30 3937 825 1.58 1.90 3608 791 1.42 1.70

1.0 4801 961 2.52 3.03 4529 928 2.23 2.68 4141 894 1.95 2.34 3754 861 1.69 2.03 3222 826 1.35 1.62 2752 792 1.13 1.35

1.2 4326 962 2.28 2.73 3912 930 1.95 2.34 3405 896 1.59 1.91 2964 863 1.38 1.65

1.4 3650 965 1.95 2.34 3199 931 1.62 1.95

1 turn

2 turns

3 turns

4 turns

5 turns

6 turns

15-Ton Standard Drive, Cooling Only, Bottom Connection

1VP62 x BK105

7000

6500

6000

5500

5000

4500

4000

3500

3000

2500

1 Turn

2 Turns

3 Turns

4 Turns

5 Turns

6 Turns

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

External Static ("WC)

Unitary Products Group

262292-YTG-C-0707

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

Blower Performance (Downflow Discharge)

ESP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP

0.2 6158 956 3.29 3.95 5958 922 2.96 3.55 5684 889 2.67 3.20 5404 856 2.38 2.86 5184 821 2.08 2.49 4955 788 1.87 2.25

0.4 5800 957 3.05 3.66 5604 923 2.75 3.30 5325 889 2.45 2.94 5123 857 2.18 2.62 4816 822 1.92 2.31 4575 789 1.74 2.09

0.6 5478 958 2.87 3.44 5271 925 2.57 3.09 4996 891 2.27 2.72 4732 858 2.05 2.46 4363 823 1.70 2.04 4092 790 1.57 1.89

0.8 5121 959 2.62 3.14 4885 926 2.31 2.77 4546 893 2.05 2.46 4249 860 1.80 2.16 3858 825 1.48 1.78 3536 791 1.33 1.60

1.0 4705 961 2.37 2.85 4438 928 2.10 2.52 4058 894 1.83 2.20 3679 861 1.59 1.91 3158 826 1.27 1.52 2697 792 1.06 1.27

1.2 4239 962 2.14 2.57 3834 930 1.83 2.20 3337 896 1.49 1.79 2905 863 1.29 1.55

1.4 3577 965 1.83 2.20 3135 931 1.52 1.83

1 turn

2 turns

3 turns

4 turns

5 turns

6 turns

15-Ton Standard Drive, Gas Heat, Bottom Connection

1VP62 x BK105

7000

6500

6000

5500

5000

4500

4000

3500

3000

2500

1 Turn

2 Turns

3 Turns

4 Turns

5 Turns

6 Turns

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

External Static ("WC)

Unitary Products Group

262292-YTG-C-0707

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

Blower Performance (Downflow Discharge)

ESP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP

0.2 7695 1120 5.68 6.93 7434 1082 5.12 6.25 7139 1043 4.55 5.55 6853 1005 4.10 4.92 6537 966 3.614 4.34 6173 926 3.20 3.84

0.4 7344 1122 5.34 6.51 7089 1083 4.80 5.86 6791 1044 4.32 5.28 6497 1005 3.80 4.57 6157 966 3.28 3.94 5791 927 2.92 3.50

0.6 6994 1123 4.99 6.08 6751 1084 4.48 5.47 6477 1046 4.06 4.87 6190 1006 3.63 4.36 5855 967 3.25 3.90 5430 927 2.74 3.29

0.8 6711 1125 4.77 5.83 6478 1086 4.29 5.24 6196 1046 3.85 4.62 5864 1007 3.41 4.09 5434 968 2.95 3.54 5023 928 2.54 3.04

1.0 6415 1126 4.54 5.54 6193 1087 4.09 4.90 5802 1048 3.58 4.30 5449 1008 3.07 3.68 5017 969 2.71 3.25 4554 929 2.21 2.66

1.2 6032 1127 4.22 5.15 5823 1088 3.80 4.56 5418 1049 3.28 3.93 5011 1009 2.79 3.34 4554 970 2.40 2.88 4030 930 1.99 2.39

1.4 5659 1128 3.89 4.67 5463 1089 3.50 4.20 4996 1049 3.00 3.60 4549 1010 2.48 2.98 4120 970 2.09 2.51 3216 931 1.63 1.95

1.6 5315 1130 3.60 4.32 5042 1090 3.23 3.88 4481 1050 2.68 3.21 4004 1011 2.20 2.64 3222 971 1.75 2.09

1.8 4733 1131 3.15 3.78 4402 1091 2.83 3.40 3756 1052 2.28 2.73

1 turn

2 turns

3 turns

4 turns

5 turns

6 turns

7.5 HP motor

5 HP motor

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

1VP62 x BK90

8000

1 Turn

7500

7000

6500

6000

5500

5000

4500

4000

3500

3000

2 Turns

3 Turns

4 Turns

5 Turns

6 Turns

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

External Static ("WC)

Unitary Products Group

262292-YTG-C-0707

TABLE 14: WR180 BLOWER PERFORMANCE - 15 TON HIGH STATIC DRIVE (GAS HEAT) DOWNFLOW

Blower Performance (Downflow Discharge)

ESP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP

0.2 7541 1120 5.34 6.51 7285 1082 4.81 5.87 6996 1043 4.28 5.22 6716 1005 3.85 4.63 6406 966 3.40 4.08 6050 926 3.00 3.61

0.4 7197 1122 5.02 6.12 6947 1083 4.51 5.50 6655 1044 4.06 4.88 6367 1005 3.58 4.29 6034 966 3.08 3.70 5675 927 2.74 3.29

0.6 6854 1123 4.69 5.72 6616 1084 4.21 5.14 6347 1046 3.81 4.58 6066 1006 3.41 4.09 5738 967 3.06 3.67 5321 927 2.58 3.09

0.8 6576 1125 4.49 5.48 6348 1086 4.04 4.84 6072 1046 3.62 4.35 5747 1007 3.20 3.84 5325 968 2.78 3.33 4923 928 2.38 2.86

1.0 6287 1126 4.27 5.21 6069 1087 3.84 4.61 5686 1048 3.37 4.04 5340 1008 2.88 3.46 4917 969 2.54 3.05 4463 929 2.08 2.50

1.2 5911 1127 3.97 4.76 5707 1088 3.57 4.29 5310 1049 3.08 3.69 4911 1009 2.62 3.14 4463 970 2.25 2.70 3949 930 1.87 2.24

1.4 5545 1128 3.66 4.39 5354 1089 3.29 3.95 4896 1049 2.82 3.38 4458 1010 2.33 2.80 4038 970 1.96 2.36 3152 931 1.53 1.83

1.6 5209 1130 3.38 4.06 4941 1090 3.04 3.65 4391 1050 2.51 3.02 3924 1011 2.07 2.48 3158 971 1.64 1.97

1.8 4638 1131 2.96 3.56 4314 1091 2.66 3.19 3681 1052 2.14 2.57

1 turn

2 turns

3 turns

4 turns

5 turns

6 turns

7.5 HP motor

5 HP motor

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

1VP62 x BK90

8000

7500

1 Turn

2 Turns

3 Turns

7000

6500

6000

5500

5000

4500

4000

3500

3000

4 Turns

5 Turns

6 Turns

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

External Static ("WC)

Unitary Products Group

262292-YTG-C-0707

TABLE 15: WR240 BLOWER PERFORMANCE - 20 TON STANDARD DRIVE (COOLING ONLY) DOWNFLOW

Blower Performance (Downflow Discharge)

ESP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP

0.4

9557 1071 7.78 9.49 9313 1036 7.22 8.81 8842 1002 6.35 7.75 8481 968 5.68 6.93 8267 932 5.22 6.38

0.6 9720 1107 8.33 10.16 9159 1073 7.58 9.25 8901 1038 6.79 8.29 8426 1003 6.02 7.34 8048 969 5.34 6.51 7805 934 4.83 5.90

0.8 9345 1108 8.04 9.81 8775 1074 7.26 8.86 8503 1039 6.50 7.94 7980 1005 5.64 6.88 7621 970 5.03 6.14 7340 935 4.39 5.35

1.0 8975 1109 7.62 9.29 8390 1076 6.82 8.32 8089 1040 6.10 7.45 7576 1006 5.33 6.51 7195 971 4.81 5.87 6858 936 4.21 5.13

1.2 8590 1110 7.32 8.93 7977 1077 6.29 7.67 7643 1041 5.72 6.97 7123 1007 5.00 6.10 6739 972 4.46 5.44 6288 937 3.79 4.62

1.4 8197 1112 6.75 8.24 7571 1078 5.98 7.29 7218 1043 5.43 6.62 6638 1008 4.54 5.54

1.6 7795 1113 6.40 7.81 7086 1079 5.71 6.97 6729 1044 4.95 6.04

1.8 7313 1115 6.27 7.65

1 turn

2 turns

3 turns

4 turns

5 turns

6 turns

10 HP motor

7.5 HP motor

20-Ton Standard Drive, Cooling Only, Bottom Connection

VP68 x BK100

11000

10000

9000

8000

7000

6000

1 Turn

2 Turns

3 Turns

4 Turns

5 Turns

6 Turns

5000

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

External Static ("WC)

Unitary Products Group

262292-YTG-C-0707

TABLE 16: WR240 BLOWER PERFORMANCE - 20 TON STANDARD DRIVE (GAS HEAT) DOWNFLOW

Blower Performance (Downflow Discharge)

ESP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP

0.4 9892 1106 8.30 10.13 9366 1071 7.31 8.92 9127 1036 6.78 8.28 8665 1002 5.97 7.28 8311 968 5.34 6.52 8102 932 4.91 5.99

0.6 9526 1107 7.83 9.55 8976 1073 7.12 8.69 8723 1038 6.38 7.79 8257 1003 5.65 6.90 7887 969 5.01 6.12 7649 934 4.54 5.55

0.8 9158 1108 7.56 9.23 8600 1074 6.83 8.33 8333 1039 6.11 7.46 7820 1005 5.30 6.47 7469 970 4.73 5.77 7193 935 4.12 5.03

1.0 8796 1109 7.16 8.74 8222 1076 6.41 7.82 7927 1040 5.73 7.00 7424 1006 5.01 6.12 7051 971 4.52 5.51 6721 936 3.95 4.83

1.2 8418 1110 6.88 8.40 7817 1077 5.91 7.21 7490 1041 5.37 6.56 6981 1007 4.70 5.74 6604 972 4.19 5.12 6162 937 3.56 4.35

1.4 8033 1112 6.35 7.75 7420 1078 5.62 6.86 7074 1043 5.10 6.22 6505 1008 4.26 5.20

1.6 7639 1113 6.01 7.34 6944 1079 5.37 6.55 6594 1044 4.65 5.68

1.8 7167 1115 5.89 7.19

1 turn

2 turns

3 turns

4 turns

5 turns

6 turns

10 HP motor

7.5 HP motor

20-Ton Standard Drive, Gas Heat, Bottom Connection

VP68 x BK100

11000

10000

9000

8000

7000

6000

1 Turn

2 Turns

3 Turns

4 Turns

5 Turns

6 Turns

5000

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

External Static ("WC)

Unitary Products Group

262292-YTG-C-0707

TABLE 17: WR240 BLOWER PERFORMANCE - 20 TON HIGH STATIC DRIVE (COOLING ONLY) DOWNFLOW

Blower Performance (Downflow Discharge)

ESP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP

0.4 11465 1201 11.98 14.62 10938 1167 10.57 12.90 10528 1131 9.67 11.80 9886 1096 8.54 10.43 9525 1063 7.55 9.21 9054 1027 7.05 8.60

0.6 11056 1202 11.46 13.98 10545 1168 10.23 12.48 10137 1133 9.20 11.23 9488 1097 8.17 9.98 9092 1064 7.32 8.93 8633 1028 6.45 7.87

0.8 10697 1203 10.97 13.39 10169 1169 9.78 11.93 9769 1134 8.68 10.59 9109 1099 7.70 9.39 8729 1065 7.28 8.88 8237 1029 6.18 7.54

1.0 10354 1204 10.68 13.03 9808 1170 9.42 11.50 9370 1135 8.50 10.37 8721 1101 7.38 9.01 8314 1066 6.65 8.11 7835 1030 5.82 7.11

1.2 9993 1205 10.12 12.35 9450 1171 8.94 10.91 9000 1136 7.94 9.69 8355 1102 6.98 8.52 7899 1067 6.03 7.36 7412 1031 5.53 6.75

1.4 9637 1207 9.61 11.73 9050 1172 8.48 10.35 8624 1137 7.39 9.02 7990 1103 6.64 8.10 7500 1068 5.96 7.28 6962 1032 4.79 5.84

1.6 9229 1208 9.20 11.23 8658 1174 7.94 9.69 8239 1138 7.24 8.84 7591 1104 6.31 7.70 7009 1069 5.58 6.81

1.8 8833 1209 9.02 11.01 8287 1175 7.83 9.56 7852 1140 6.67 8.14 7135 1105 5.91 7.21

2.0 8446 1210 8.27 10.09 7916 1176 7.41 9.04 7356 1141 6.48 7.91

2.2 7996 1212 7.90 9.64

1 turn

2 turns

3 turns

4 turns

5 turns

6 turns

15 HP motor

10 HP motor

7.5 HP motor

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

VP71 x BK100

12000

1 Turn

2 Turns

11000

3 Turns

4 Turns

10000

5 Turns

6 Turns

9000

8000

7000

6000

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

2.2

External Static ("WC)

Unitary Products Group

262292-YTG-C-0707

TABLE 18: WR240 BLOWER PERFORMANCE - 20 TON HIGH STATIC DRIVE (GAS HEAT) DOWNFLOW

Blower Performance (Downflow Discharge)

ESP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP

0.4 11236 1201 11.26 13.74 10719 1167 9.94 12.13 10317 1131 9.09 11.09 9688 1096 8.03 9.80 9335 1063 7.10 8.66 8873 1027 6.62 8.08

0.6 10835 1202 10.77 13.14 10334 1168 9.62 11.73 9934 1133 8.65 10.56 9298 1097 7.68 9.38 8910 1064 6.88 8.39 8460 1028 6.06 7.40

0.8 10483 1203 10.31 12.58 9966 1169 9.19 11.22 9574 1134 8.16 9.96 8927 1099 7.23 8.83 8554 1065 6.84 8.35 8072 1029 5.81 7.09

1.0 10147 1204 10.04 12.25 9612 1170 8.86 10.81 9183 1135 7.99 9.75 8547 1101 6.94 8.47 8148 1066 6.25 7.62 7678 1030 5.48 6.68

1.2 9793 1205 9.52 11.61 9261 1171 8.40 10.25 8820 1136 7.46 9.11 8188 1102 6.56 8.01 7741 1067 5.67 6.92 7264 1031 5.20 6.35

1.4 9444 1207 9.03 11.02 8869 1172 7.97 9.73 8452 1137 6.95 8.48 7830 1103 6.24 7.61 7350 1068 5.61 6.84 6823 1032 4.50 5.49

1.6 9044 1208 8.65 10.55 8485 1174 7.47 9.11 8074 1138 6.81 8.31 7439 1104 5.93 7.24 6869 1069 5.24 6.40

1.8 8656 1209 8.48 10.35 8121 1175 7.36 8.99 7695 1140 6.27 7.65 6992 1105 5.55 6.78

2.0 8277 1210 7.77 9.49 7758 1176 6.97 8.50 7209 1141 6.09 7.44

2.2 7836 1212 7.43 9.07

1 turn

2 turns

3 turns

4 turns

5 turns

6 turns

15 HP motor

10 HP motor

7.5 HP motor

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

VP71 x BK100

12000

1 Turn

11000

2 Turns

3 Turns

10000

4 Turns

5 Turns

6 Turns

9000

8000

7000

6000

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

2.2

External Static ("WC)

Unitary Products Group

262292-YTG-C-0707

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

Blower Performance (Downflow Discharge)

ESP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP

0.4 10636 1106 9.46 11.55 10163 1072 8.55 10.44 9813 1036 7.76 9.47 9394 999 6.98 8.52 8936 963 6.14 7.49 8388 927 5.45 6.65

0.6 10312 1106 9.06 11.06 9824 1072 8.17 9.97 9463 1036 7.37 8.99 9006 1000 6.60 8.05 8553 963 5.83 7.11 7987 927 5.10 6.23

0.8 9975 1107 8.76 10.69 9466 1073 7.75 9.46 9087 1036 6.99 8.53 8626 1001 6.31 7.69 8159 964 5.51 6.73 7553 928 4.84 5.91

1.0 9629 1108 8.34 10.18 9108 1073 7.41 9.04 8706 1037 6.64 8.11 8218 1001 5.91 7.22 7717 965 5.16 6.29 7118 929 4.49 5.48

1.2 9262 1109 7.97 9.73 8730 1074 7.11 8.67 8319 1038 6.33 7.72 7783 1002 5.55 6.77 7265 966 4.83 5.89 6625 929 4.21 5.14

1.4 8897 1110 7.56 9.22 8326 1075 6.72 8.21 7879 1039 5.85 7.14 7351 1002 5.18 6.32 6804 967 4.52 5.51 6087 930 3.82 4.66

1.6 8488 1111 7.15 8.73 7919 1076 6.28 7.67 7414 1039 5.46 6.66 6800 1003 4.79 5.84 6205 968 4.12 5.03 5425 931 3.51 4.28

1.8 8068 1112 6.74 8.23 7472 1076 5.92 7.22 6919 1040 5.09 6.22 6187 1004 4.29 5.24 5478 969 3.74 4.56 4665 931 3.02 3.69

2.0 7654 1113 6.38 7.79 6906 1077 5.37 6.56 6327 1041 4.67 5.70 5539 1005 3.88 4.73 4750 969 3.18 3.88

2.2 7135 1114 5.92 7.22 6346 1078 4.91 5.99 5735 1042 4.25 5.19

1 turn

2 turns

3 turns

4 turns

5 turns

6 turns

15 HP motor

10 HP motor

7.5 HP motor

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

1VP65 & B5V94

12000

11000

1 Turn

2 Turns

10000

9000

8000

7000

6000

5000

4000

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

External Static ("WC)

Unitary Products Group

262292-YTG-C-0707

TABLE 20: WR300 BLOWER PERFORMANCE - 25 TON STANDARD DRIVE (GAS HEAT) DOWNFLOW

Blower Performance (Downflow Discharge)

ESP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP

0.4 10423 1106 8.89 10.85 9960 1072 8.04 9.81 9617 1036 7.29 8.90 9206 999 6.56 8.01 8757 963 5.77 7.04 8220 927 5.12 6.25

0.6 10106 1106 8.52 10.40 9628 1072 7.68 9.38 9274 1036 6.92 8.45 8826 1000 6.20 7.57 8382 963 5.48 6.68 7827 927 4.80 5.85

0.8 9776 1107 8.24 10.05 9277 1073 7.28 8.89 8905 1036 6.57 8.01 8453 1001 5.93 7.23 7996 964 5.18 6.33 7402 928 4.55 5.55

1.0 9436 1108 7.84 9.57 8926 1073 6.97 8.50 8532 1037 6.24 7.62 8054 1001 5.56 6.78 7563 965 4.85 5.91 6976 929 4.22 5.15

1.2 9077 1109 7.49 9.14 8555 1074 6.68 8.15 8153 1038 5.95 7.26 7627 1002 5.21 6.36 7120 966 4.54 5.53 6493 929 3.96 4.83

1.4 8719 1110 7.10 8.67 8159 1075 6.32 7.71 7721 1039 5.50 6.71 7204 1002 4.87 5.94 6668 967 4.25 5.18 5965 930 3.59 4.38

1.6 8318 1111 6.72 8.20 7761 1076 5.91 7.21 7266 1039 5.13 6.26 6664 1003 4.50 5.49 6081 968 3.87 4.73 5317 931 3.30 4.02

1.8 7907 1112 6.34 7.74 7323 1076 5.56 6.79 6781 1040 4.79 5.84 6063 1004 4.03 4.92 5368 969 3.52 4.29 4572 931 2.84 3.47

2.0 7501 1113 6.00 7.32 6768 1077 5.05 6.16 6200 1041 4.39 5.36 5428 1005 3.65 4.45 4655 969 2.99 3.65

2.2 6992 1114 5.56 6.79 6219 1078 4.62 5.63 5620 1042 4.00 4.88

1 turn

2 turns

3 turns

4 turns

5 turns

6 turns

15 HP motor

10 HP motor

7.5 HP motor

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

1VP65 & B5V94

12000

11000

1 Turn

2 Turns

10000

9000

8000

7000

6000

5000

4000

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

External Static ("WC)

Unitary Products Group

262292-YTG-C-0707

TABLE 21: WR300 BLOWER PERFORMANCE - 25 TON HIGH STATIC DRIVE (COOLING ONLY) DOWNFLOW

Blower Performance (Downflow Discharge)

ESP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP

0.4 11830 1216 12.80 15.62 11374 1181 11.51 14.05 11030 1146 10.55 12.87 10572 1111 9.50 11.59 10220 1075 8.67 10.58 9928 1041 7.91 9.65

0.6 11546 1217 12.31 15.02 11079 1181 11.12 13.57 10600 1147 10.00 12.20 10231 1112 9.11 11.12 9885 1076 8.28 10.10 9575 1040 7.52 9.18

0.8 11239 1217 11.87 14.49 10770 1182 10.79 13.17 10232 1147 9.63 11.75 9912 1112 8.87 10.82 9537 1077 7.94 9.69 9207 1042 7.08 8.63

1.0 10923 1218 11.48 14.01 10388 1183 10.25 12.51 9919 1148 9.28 11.32 9607 1114 8.39 10.24 9171 1078 7.54 9.20 8833 1043 6.72 8.21

1.2 10618 1219 11.14 13.60 10054 1185 9.82 11.98 9591 1149 8.93 10.90 9201 1114 8.01 9.77 8799 1079 7.18 8.76 8439 1044 6.39 7.80

1.4 10302 1221 10.66 13.01 9703 1186 9.42 11.50 9228 1150 8.48 10.35 8793 1115 7.55 9.21 8407 1080 6.76 8.25 7996 1044 6.03 7.36

1.6 9958 1222 10.21 12.45 9346 1186 9.05 11.04 8861 1151 8.12 9.91 8394 1116 7.13 8.69 7992 1081 6.42 7.84 7565 1045 5.66 6.90

1.8 9605 1223 9.71 11.85 9032 1187 8.61 10.51 8484 1153 7.58 9.25 8008 1117 6.86 8.37 7513 1081 6.01 7.33 7045 1047 5.20 6.35

2.0 9219 1225 9.25 11.29 8638 1189 8.18 9.98 8092 1154 7.26 8.86 7624 1118 6.37 7.77 6987 1082 5.53 6.75

2.2 8796 1226 8.82 10.76 8250 1190 7.78 9.49 7637 1155 6.67 8.14 7134 1119 5.99 7.31

2.4 8287 1227 8.19 10.00 7791 1191 7.26 8.86

2.6 7782 1229 7.98 9.74

1 turn

2 turns

3 turns

4 turns

5 turns

6 turns

15 HP motor

10 HP motor

7.5 HP motor

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

1VP71 & 1B5V94

13000

12000

11000

10000

9000

1 Turn

2 Turns

3 Turns

4 Turns

5 Turns

6 Turns

8000

7000

6000

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

2.2

2.4

2.6

External Static ("WC)

Unitary Products Group

262292-YTG-C-0707

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

Blower Performance (Downflow Discharge)

ESP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP

0.4 11593 1216 12.03 14.68 11147 1181 10.82 13.20 10809 1146 9.91 12.10 10361 1111 8.93 10.90 10016 1075 8.15 9.95 9729 1041 7.43 9.07

0.6 11315 1217 11.57 14.12 10857 1181 10.45 12.76 10388 1147 9.40 11.47 10026 1112 8.56 10.45 9687 1076 7.78 9.49 9384 1040 7.07 8.63

0.8 11014 1217 11.16 13.62 10555 1182 10.14 12.38 10027 1147 9.05 11.05 9714 1112 8.34 10.17 9346 1077 7.46 9.11 9023 1042 6.65 8.12

1.0 10705 1218 10.79 13.17 10180 1183 9.64 11.76 9721 1148 8.72 10.65 9415 1114 7.88 9.62 8988 1078 7.09 8.65 8656 1043 6.32 7.71

1.2 10406 1219 10.47 12.78 9853 1185 9.23 11.26 9399 1149 8.39 10.24 9017 1114 7.53 9.19 8623 1079 6.75 8.23 8270 1044 6.01 7.33

1.4 10096 1221 10.02 12.23 9509 1186 8.85 10.81 9043 1150 7.97 9.73 8617 1115 7.10 8.66 8239 1080 6.36 7.76 7836 1044 5.67 6.92

1.6 9759 1222 9.59 11.71 9159 1186 8.51 10.38 8684 1151 7.63 9.31 8226 1116 6.70 8.17 7832 1081 6.04 7.37 7414 1045 5.32 6.49

1.8 9413 1223 9.13 11.14 8851 1187 8.09 9.88 8314 1153 7.13 8.70 7848 1117 6.45 7.87 7363 1081 5.65 6.89 6904 1047 4.89 5.97

2.0 9035 1225 8.70 10.61 8465 1189 7.69 9.38 7930 1154 6.82 8.33 7472 1118 5.98 7.30 6847 1082 5.20 6.34

2.2 8620 1226 8.29 10.12 8085 1190 7.31 8.92 7484 1155 6.27 7.65 6991 1119 5.63 6.87

2.4 8121 1227 7.70 9.40 7635 1191 6.82 8.33

2.6 7626 1229 7.50 9.15

1 turn

2 turns

3 turns

4 turns

5 turns

6 turns

15 HP motor

10 HP motor

7.5 HP motor

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

1VP71 & 1B5V94

13000

12000

1 Turn

2 Turns

3 Turns

4 Turns

11000

10000

9000

8000

7000

6000

5 Turns

6 Turns

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

2.2

2.4

2.6

External Static ("WC)

Unitary Products Group

262292-YTG-C-0707

TABLE 23: BLOWER MOTOR AND DRIVE DATA

BELT

(NOTCHED)

ADJUSTABLE MOTOR PULLEY

FIXED BLOWER PULLEY

OUTSIDE PITCH

MOTOR

BLOWER

RANGE

(RPM)

MODEL

SIZE

DRIVE

OUTSIDE PITCH

PITCH

LENGTH QTY.

(IN.)

EFF.

(%)

DESIG-

NATION

BORE DESIG-

(IN.) NATION

BORE DESIG-

(IN.) NATION

HP FRAME

DIA.

(IN.)

DIA.

(IN.)

DIA.

(IN.)

DIA.

(IN.)

Standard 790/970

High

Static

184 T 89.5

1-1/8

1-3/8

BK105

BK90

10.25

9.9

15 TON

1VP62

5.95

BX81

82.8

4.9-5.9

940/1130 7.5 213 T

8.75

8.4

Low

Static

7.5 213 T

910/1100

1VP68

1VP71

1VP65

1VP71

6.55

7.1

6.0

7.1

5.5-6.5

5.4-6.6

4.8-6.0

5.5-6.5

1-3/8

20 TON Standard

10 215 T

BK100

9.75

9.7

9.4

9.5

1-3/16

High

Static

1000/1180 15 254 T

1-5/8

1-3/8

Low

Static

7.5 213 T

900/1100

1-3/16

1-7/16

BX78

BX81

79.8

82.8

25 TON Standard

1B5V94

15 254 T

1000/1200

1-5/8

High

Static

1. All motors have a nominal speed of 1800 RPM, a 1.15 service factor and a solid base. They can operate to the limit of their service factor because they are

located in the moving air, upstream of any heating device.

2. Do NOT close this pully below 1 turn open.

TABLE 24: STATIC RESISTANCES

RESISTANCE, IWG

CFM

DESCRIPTION

15 TON

6000

0.1

20 TON

8000

0.1

25 TON

8000

0.1

4500

0.1

0.3

0.4

0.1

7500

0.1

0.4

0.5

0.1

0.3

6000

0.1

0.4

0.5

0.1

0.2

9000

0.2

0.5

0.6

0.2

0.5

7500

0.1

0.4

0.5

0.1

0.3

9000

WET INDOOR COIL

0.2

0.5

0.6

0.2

0.5

18 KW

36 KW

54 KW

72 KW

0.4

0.5

ELECTRIC HEAT OPTIONS

0.5

ECONOMIZER OPTION

HORIZONTAL DUCT CONNECTIONS²

0.1

0.2

0.3

1. Deduct these resistance values from the available external static pressures shown in the respective Blower Performance Table.

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

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

TABLE 25: POWER EXHAUST PERFORMANCE

STATIC RESISTANCE OF RETURN DUCTWORK, IWG

MOTOR

SPEED¹

0.2

0.3

0.4

0.5

0.6

CFM

HIGH²

MEDIUM

LOW

5250

4900

4400

0.83

0.77

0.72

4500

3900

3700

0.85

0.79

0.74

4200

3500

3000

0.88

0.82

0.78

3750

2900

0.93

0.85

3000

0.99

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

2. The factory setting.

Unitary Products Group

262292-YTG-C-0707

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

COMPRESSORS

HEATER OPTION

MIN.

CIRCUIT

AMPACITY

(AMPS)

76.5

MAX. FUSE/

BRKR

SIZE

(AMPS)

OD FAN

MOTORS

FLA EACH

CONV

OUTLET

AMPS

MODEL

(TONNAGE)

BLOWER

MOTOR

FLA

VOLTAGE

RLA

LRA

MODEL KW STAGES AMPS

EACH

None

E18

E36

E54

E72

None

E18

E36

E54

E72

None

E18

E36

E54

E72

None

E18

E36

E54

E72

None

E18

E36

E54

E72

None

E18

E36

E54

E72

None

E18

E36

E54

E72

None

E18

E36

E54

E72

None

E18

E36

E54

E72

None

E18

E36

E54

E72

None

E18

E36

E54

E72

None

E18

E36

E54

E72

13.5

40.6

54.1

18.0

36.0

54.0

72.0

18.0

36.0

54.0

72.0

18.0

36.0

54.0

72.0

13.5

40.6

54.1

18.0

36.0

54.0

72.0

18.0

36.0

54.0

72.0

18.0

36.0

54.0

72.0

13.5

40.6

54.1

18.0

36.0

54.0

72.0

18.0

36.0

54.0

72.0

37.5

74.9

112.7

150.2

43.3

86.6

129.9

173.2

21.7

43.3

65.0

86.6

17.3

34.6

52.0

69.3

37.5

74.9

112.7

150.2

43.3

86.6

129.9

173.2

21.7

43.3

65.0

86.6

17.3

34.6

52.0

69.3

37.5

74.9

112.7

150.2

43.3

86.6

129.9

173.2

21.7

43.3

65.0

86.6

17.3

34.6

52.0

69.3

76.5

208

22.4

10.9

8.3

164

100

2.1

1.2

0.9

2.4

0.9

0.6

2.4

0.9

0.6

17.7

16.4

8.2

0.0

115.8

163.0

172.3

75.2

125

175

200

75.2

230

460

575

208

230

460

575

208

230

460

575

128.8

150.4

193.7

37.5

64.4

75.2

96.9

28.9

29.9

150

175

225

110

180

(15)

6.6

51.6

60.2

77.5

101.5

123.9

171.1

180.4

101.5

138.5

160.2

203.5

50.6

69.3

80.1

101.7

39.9

125

175

200

125

150

175

225

110

30.1

15.5

12.1

42.3

17.6

14.5

225

114

24.2

12.1

10.3

38.6

19.3

16.2

240

(20)

39.9

56.2

64.8

82.2

143.4

189.1

198.4

143.4

156.5

178.2

221.5

62.9

78.3

89.1

110.7

51.7

175

200

225

175

200

250

100

125

245

125

100

300

(25)

18.0

36.0

54.0

72.0

51.7

63.6

72.2

89.5

100

NOTE 1: HACR Type per NEC.

VOLTAGE LIMITATIONS

POWER SUPPLY

ELECTRIC HEAT CORRECTION FACTORS

VOLTAGE

NOMINAL VOLTAGE

VOLTAGE

208

kW CAP. MULTIPLIER

MIN.

187

414

518

MAX.

208

240

480

600

1.00

0.92

VOLTAGE

LIMITATIONS¹

208/230-3-60

460-3-60

575-3-60

253

506

630

230

460

575

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

Unitary Products Group

262292-YTG-C-0707

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

COMPRESSORS

HEATER OPTION

MIN.

CIRCUIT

AMPACITY

(AMPS)

78.8

MAX. FUSE/

BRKR

OD FAN

MOTORS

FLA EACH

CONV

OUTLET

AMPS

MODEL

(TONNAGE)

BLOWER

MOTOR

FLA

VOLTAGE

RLA

LRA

SIZE

(AMPS)

100

125

175

200

100

150

175

225

110

150

200

225

150

175

200

250

100

125

MODEL KW STAGES AMPS

EACH

None

E18

E36

E54

E72

None

E18

E36

E54

E72

None

E18

E36

E54

E72

None

E18

E36

E54

E72

None

E18

E36

E54

E72

None

E18

E36

E54

E72

None

E18

E36

E54

E72

None

E18

E36

E54

E72

None

E18

E36

E54

E72

None

E18

E36

E54

E72

None

E18

E36

E54

E72

None

E18

E36

E54

E72

13.5

40.6

54.1

37.5

74.9

112.7

150.2

43.3

86.6

129.9

173.2

21.7

43.3

65.0

86.6

17.3

34.6

52.0

69.3

37.5

74.9

112.7

150.2

43.3

86.6

129.9

173.2

21.7

43.3

65.0

86.6

17.3

34.6

52.0

69.3

37.5

74.9

112.7

150.2

43.3

86.6

129.9

173.2

21.7

43.3

65.0

86.6

17.3

34.6

52.0

69.3

78.8

208

22.4

10.9

8.3

164

100

2.1

1.2

0.9

2.4

0.9

0.6

2.4

0.9

0.6

20.0

10.0

7.5

0.0

118.7

165.9

175.2

78.8

18.0

36.0

54.0

72.0

79.1

230

460

575

208

230

460

575

208

230

460

575

133.3

154.9

198.2

39.3

39.6

66.6

77.5

99.1

29.8

31.0

180

(15)

18.0

36.0

54.0

72.0

18.0

36.0

54.0

72.0

52.7

61.3

78.7

118.1

141.9

189.1

198.4

118.1

156.5

178.2

221.5

58.7

78.3

89.1

110.7

46.9

13.5

40.6

54.1

30.1

15.5

12.1

42.3

17.6

14.5

225

114

38.6

19.3

16.2

38.6

19.3

16.2

18.0

36.0

54.0

72.0

240

(20)

18.0

36.0

54.0

72.0

18.0

36.0

54.0

72.0

46.9

63.6

72.2

89.5

100

175

200

225

175

200

250

100

125

143.4

189.1

198.4

143.4

156.5

178.2

221.5

62.9

78.3

89.1

110.7

51.7

13.5

40.6

54.1

245

125

100

18.0

36.0

54.0

72.0

300

(25)

18.0

36.0

54.0

72.0

18.0

36.0

54.0

72.0

51.7

63.6

72.2

89.5

100

NOTE 1: HACR Type per NEC.

VOLTAGE LIMITATIONS

POWER SUPPLY

ELECTRIC HEAT CORRECTION FACTORS

VOLTAGE

NOMINAL VOLTAGE

VOLTAGE

208

kW CAP. MULTIPLIER

MIN.

187

414

518

MAX.

208

240

480

600

1.00

0.92

VOLTAGE

LIMITATIONS¹

208/230-3-60

460-3-60

575-3-60

253

506

630

230

460

575

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

Unitary Products Group

262292-YTG-C-0707

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

COMPRESSORS

HEATER OPTION

MIN.

MAX. FUSE/

BRKR

SIZE

(AMPS)

OD FAN

MOTORS

FLA EACH

CONV

OUTLET

AMPS

MODEL

(TONNAGE)

BLOWER

MOTOR

FLA

CIRCUIT

AMPACITY

(AMPS)

VOLTAGE

RLA

LRA

MODEL KW STAGES AMPS

EACH

None

E18

E36

E54

E72

None

E18

E36

E54

E72

None

E18

E36

E54

E72

None

E18

E36

E54

E72

None

E18

E36

E54

E72

None

E18

E36

E54

E72

None

E18

E36

E54

E72

None

E18

E36

E54

E72

0.0

97.3

118.7

165.9

175.2

97.3

125

175

200

125

150

175

225

110

13.5

27.0

40.6

54.1

0.0

18.0

36.0

54.0

72.0

0.0

18.0

36.0

54.0

72.0

0.0

18.0

36.0

54.0

72.0

0.0

13.5

27.0

40.6

54.1

0.0

18.0

36.0

54.0

72.0

0.0

18.0

36.0

54.0

72.0

0.0

18.0

36.0

54.0

72.0

37.5

75.1

112.7

150.2

43.3

86.6

129.9

173.2

21.7

43.3

65.0

86.6

17.3

34.6

52.0

69.3

37.5

75.1

112.6

150.1

43.3

86.6

129.9

173.2

21.7

43.3

65.0

86.6

17.3

34.6

52.0

69.3

208

30.1

15.5

12.1

42.3

17.6

14.5

225

114

2.4

0.9

0.6

2.4

0.9

0.6

20.0

10.0

7.5

0.0

97.3

230

460

575

208

230

460

575

133.3

154.9

198.2

48.5

66.6

77.5

99.1

37.1

240

(20)

52.7

61.3

78.7

124.8

165.9

175.2

124.8

133.3

154.9

198.2

53.2

66.6

77.5

99.1

42.5

52.7

61.3

150

175

200

150

175

225

110

245

125

100

20.0

10.0

7.5

300

(25)

78.7

NOTE 1: HACR Type per NEC.

VOLTAGE LIMITATIONS

POWER SUPPLY

ELECTRIC HEAT CORRECTION FACTORS

VOLTAGE

NOMINAL VOLTAGE

VOLTAGE

208

kW CAP. MULTIPLIER

MIN.

187

414

518

MAX.

208

240

480

600

1.00

0.92

VOLTAGE

LIMITATIONS¹

208/230-3-60

460-3-60

575-3-60

253

506

630

230

460

575

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

Unitary Products Group

262292-YTG-C-0707

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

COMPRESSORS

HEATER OPTION

MIN.

CIRCUIT

AMPACITY

(AMPS)

86.5

MAX. FUSE/

BRKR

OD FAN

MOTORS

FLA EACH

CONV

OUTLET

AMPS

MODEL

(TONNAGE)

BLOWER

MOTOR

FLA

VOLTAGE

RLA

LRA

SIZE

(AMPS)

100

150

200

100

150

175

225

110

125

150

200

125

175

225

110

MODEL KW STAGES AMPS

EACH

None

E18

E36

E54

E72

None

E18

E36

E54

E72

None

E18

E36

E54

E72

None

E18

E36

E54

E72

None

E18

E36

E54

E72

None

E18

E36

E54

E72

None

E18

E36

E54

E72

None

E18

E36

E54

E72

None

E18

E36

E54

E72

None

E18

E36

E54

E72

None

E18

E36

E54

E72

None

E18

E36

E54

E72

13.5

40.6

54.1

37.5

74.9

112.7

150.2

43.3

86.6

129.9

173.2

21.7

43.3

65.0

86.6

17.3

34.6

52.0

69.3

37.5

74.9

112.7

150.2

43.3

86.6

129.9

173.2

21.7

43.3

65.0

86.6

17.3

34.6

52.0

69.3

37.5

74.9

112.7

150.2

43.3

86.6

129.9

173.2

21.7

43.3

65.0

86.6

17.3

34.6

52.0

69.3

86.5

208

22.4

10.9

8.3

164

100

2.1

1.2

0.9

2.4

0.9

0.6

2.4

0.9

0.6

17.7

16.4

8.2

10.0

5.0

128.3

175.5

184.8

85.2

18.0

36.0

54.0

72.0

87.1

230

460

575

208

230

460

575

208

230

460

575

141.3

162.9

206.2

42.5

43.6

70.6

81.5

103.1

32.9

34.9

56.6

180

(15)

18.0

36.0

54.0

72.0

18.0

36.0

54.0

72.0

6.6

4.0

65.2

82.5

111.5

136.4

183.6

192.9

111.5

151.0

172.7

216.0

55.6

75.5

86.3

108.0

43.9

13.5

40.6

54.1

30.1

15.5

12.1

42.3

17.6

14.5

225

114

24.2

12.1

10.3

38.6

19.3

16.2

10.0

5.0

18.0

36.0

54.0

72.0

240

(20)

18.0

36.0

54.0

72.0

18.0

36.0

54.0

72.0

43.9

61.2

69.8

87.2

4.0

153.4

154.4

201.6

210.9

153.4

169.0

190.7

234.0

67.9

84.5

95.3

117.0

55.7

175

225

175

225

250

110

125

13.5

40.6

54.1

245

125

100

10.0

5.0

18.0

36.0

54.0

72.0

300

(25)

18.0

36.0

54.0

72.0

18.0

36.0

54.0

72.0

55.7

68.6

77.2

94.5

100

4.0

NOTE 1: HACR Type per NEC.

VOLTAGE LIMITATIONS

POWER SUPPLY

ELECTRIC HEAT CORRECTION FACTORS

VOLTAGE

NOMINAL VOLTAGE

VOLTAGE

208

kW CAP. MULTIPLIER

MIN.

187

414

518

MAX.

208

240

480

600

1.00

0.92

VOLTAGE

LIMITATIONS¹

208/230-3-60

460-3-60

575-3-60

253

506

630

230

460

575

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

Unitary Products Group

262292-YTG-C-0707

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

COMPRESSORS

HEATER OPTION

MIN.

CIRCUIT

AMPACITY

(AMPS)

88.8

MAX. FUSE/

BRKR

OD FAN

MOTORS

FLA EACH

CONV

OUTLET

AMPS

MODEL

(TONNAGE)

BLOWER

MOTOR

FLA

VOLTAGE

RLA

LRA

SIZE

(AMPS)

110

150

200

110

150

175

225

110

150

175

225

150

175

225

250

110

125

MODEL KW STAGES AMPS

EACH

None

E18

E36

E54

E72

None

E18

E36

E54

E72

None

E18

E36

E54

E72

None

E18

E36

E54

E72

None

E18

E36

E54

E72

None

E18

E36

E54

E72

None

E18

E36

E54

E72

None

E18

E36

E54

E72

None

E18

E36

E54

E72

None

E18

E36

E54

E72

None

E18

E36

E54

E72

None

E18

E36

E54

E72

13.5

40.6

54.1

37.5

74.9

112.7

150.2

43.3

86.6

129.9

173.2

21.7

43.3

65.0

86.6

17.3

34.6

52.0

69.3

37.5

74.9

112.7

150.2

43.3

86.6

129.9

173.2

21.7

43.3

65.0

86.6

17.3

34.6

52.0

69.3

37.5

74.9

112.7

150.2

43.3

86.6

129.9

173.2

21.7

43.3

65.0

86.6

17.3

34.6

52.0

69.3

88.8

208

22.4

10.9

8.3

164

100

2.1

1.2

0.9

2.4

0.9

0.6

2.4

2/4

0.9

0.6

20.0

10.0

7.5

10.0

5.0

131.2

178.4

187.7

88.8

18.0

36.0

54.0

72.0

91.6

230

460

575

208

230

460

575

208

230

460

575

145.8

167.4

210.7

44.3

45.8

72.9

83.7

105.4

33.8

36.0

57.7

180

(15)

18.0

36.0

54.0

72.0

18.0

36.0

54.0

72.0

4.0

66.3

83.7

128.1

154.4

201.6

210.9

128.1

169.0

190.7

234.0

63.7

84.5

95.3

117.0

50.9

13.5

40.6

54.1

30.1

15.5

12.1

42.3

17.6

14.5

225

114

38.6

19.3

16.2

38.6

19.3

16.2

10.0

5.0

18.0

36.0

54.0

72.0

240

(20)

18.0

36.0

54.0

72.0

18.0

36.0

54.0

72.0

50.9

68.6

77.2

94.5

4.0

100

175

225

175

225

250

110

125

153.4

154.4

201.6

210.9

153.4

169.0

190.7

234.0

67.9

84.5

95.3

117.0

55.7

13.5

40.6

54.1

245

125

100

10.0

5.0

18.0

36.0

54.0

72.0

300

(25)

18.0

36.0

54.0

72.0

18.0

36.0

54.0

72.0

55.7

68.6

77.2

94.5

100

4.0

NOTE 1: HACR Type per NEC.

VOLTAGE LIMITATIONS

POWER SUPPLY

ELECTRIC HEAT CORRECTION FACTORS

VOLTAGE

NOMINAL VOLTAGE

VOLTAGE

208

kW CAP. MULTIPLIER

MIN.

187

414

518

MAX.

208

240

480

600

1.00

0.92

VOLTAGE

LIMITATIONS¹

208/230-3-60

460-3-60

575-3-60

253

506

630

230

460

575

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

Unitary Products Group

262292-YTG-C-0707

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

COMPRESSORS

HEATER OPTION

MIN.

MAX. FUSE/

BRKR

SIZE

(AMPS)

OD FAN

MOTORS

FLA EACH

CONV

OUTLET

AMPS

MODEL

(TONNAGE)

BLOWER

MOTOR

FLA

CIRCUIT

AMPACITY

(AMPS)

VOLTAGE

RLA

LRA

MODEL KW STAGES AMPS

EACH

None

E18

E36

E54

E72

None

E18

E36

E54

E72

None

E18

E36

E54

E72

None

E18

E36

E54

E72

None

E18

E36

E54

E72

None

E18

E36

E54

E72

None

E18

E36

E54

E72

None

E18

E36

E54

E72

0.0

107.3

131.2

178.4

187.7

107.3

145.8

167.4

210.7

53.5

72.9

83.7

105.4

41.1

125

150

200

125

150

175

225

110

13.5

27.0

40.6

54.1

0.0

18.0

36.0

54.0

72.0

0.0

18.0

36.0

54.0

72.0

0.0

18.0

36.0

54.0

72.0

0.0

13.5

27.0

40.6

54.1

0.0

18.0

36.0

54.0

72.0

0.0

18.0

36.0

54.0

72.0

0.0

18.0

36.0

54.0

72.0

37.5

75.1

112.7

150.2

43.3

86.6

129.9

173.2

21.7

43.3

65.0

86.6

17.3

34.6

52.0

69.3

37.5

75.1

112.6

150.1

43.3

86.6

129.9

173.2

21.7

43.3

65.0

86.6

17.3

34.6

52.0

69.3

208

30.1

15.5

12.1

42.3

17.6

14.5

225

114

2.4

0.9

0.6

2.4

0.9

0.6

20.0

10.0

7.5

10.0

5.0

230

460

575

208

230

460

575

240

(20)

41.1

57.7

66.3

83.7

4.0

134.8

178.4

187.7

134.8

145.8

167.4

210.7

58.2

72.9

83.7

105.4

46.5

175

200

175

225

110

245

125

100

20.0

10.0

7.5

10.0

5.0

300

(25)

46.5

57.7

66.3

83.7

4.0

NOTE 1: HACR Type per NEC.

VOLTAGE LIMITATIONS

POWER SUPPLY

ELECTRIC HEAT CORRECTION FACTORS

VOLTAGE

NOMINAL VOLTAGE

VOLTAGE

208

kW CAP. MULTIPLIER

MIN.

187

414

518

MAX.

208

240

480

600

1.00

0.92

VOLTAGE

LIMITATIONS¹

208/230-3-60

460-3-60

575-3-60

253

506

630

230

460

575

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

Unitary Products Group

262292-YTG-C-0707

TABLE 32: PHYSICAL DATA

MODELS

WR180

WR240

WR300

CENTRIFUGAL BLOWER (Dia. x Wd.)

FAN MOTOR HP

15x15

5/7.5

18x15

EVAPORATOR

BLOWER

7.5/10.0/15.0

7.5/15.0

ROWS DEEP

EVAPORATOR

COIL

FINS PER INCH

FACE AREA (Sq. Ft.)

PROPELLER DIA. (In.)

FAN MOTOR HP

20.52

(Each)

1/3

3/4

CONDENSER FAN

(FOUR PER UNIT)

NOM. CFM TOTAL

ROWS DEEP

4,000

5,000

CONDENSER

COIL

FINS PER INCH

FACE AREA (Sq. Ft.)

ROWS DEEP

63.8

REHEAT COIL

FINS PER INCH

FACE AREA (Sq. Ft.)

17.2

COMPRESSOR

(QTY. PER UNIT)

SCROLL

QUANTITY PER UNIT (16” X 25” X 2”)

QUANTITY PER UNIT (16” X 20” X 2”)

TOTAL FACE AREA (Sq. Ft.)

FILTERS

CHARGE

SYSTEM No. 1

SYSTEM No. 2

COOLING ONLY

24/0

23/0

28/8

27/0

2710

2910

2950

260

160

28/0

26/4

REFRIGERANT 22

(Lb./Oz.)

2410

2610

2650

2810

3010

3050

BASIC

UNIT

N24

N32

GAS / ELECTRIC

DOUBLE WALL

ECONOMIZER

ECONOMIZER WITH

POWER EXHAUST

245

MOTORIZED DAMPER

18 KW

150

36 KW

54 KW

72 KW

OPERATING

WEIGHTS

(LBS.)

ELECTRIC

HEATER

HOT GAS BYPASS

SUPPLY FAN VFD

ROOF CURB

See Table 33

185

BAROMETRIC DAMPER

ECONOMIZER / MOTORIZED

DAMPER RAIN HOOD

ECONOMIZER / POWER

EXHAUST RAIN HOOD

WOOD SKID

220

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

262292-YTG-C-0707

ECONOMIZER / MOTORIZED DAMPER

FIXED OUTDOOR INTAKE AIR AND

POWER EXHAUST RAIN HOODS

(See detail Y)

BLOWER MOTOR

ACCESS (Location of

Optional VFD Bypass)

BLOWER ACCESS

(Location of

BLOWER

COMPARTMENT

ACCESS

Optional VFD)

COMPRESSOR ACCESS

180-19/32

DOT PLUG

52-5/8

(For pressure

drop reading)

GAS OR ELECTRIC

HEAT

ACCESS

COIL

VENT AIR

GUARD

KIT

OUTLET

HOODS

COMBUSTION

AIR INLET HOOD

21.00

9-3/4

SUPPLY

ENTRY

CONDENSER

COILS

7-1/8

136-1/4

(A) CONTROL WIRING

6-3/8

ENTRY

DISCONNECT

SWITCH

46-5/8

11-1/2

CONTROL BOX

ACCESS

LOCATION

5-7/8

(B) POWER

All dimensions are in inches. They are

subject to change without notice.

Certified dimensions will be provided

upon request.

WIRING

ENTRY

BOTTOM SUPPLY

AND RETURN

AIR OPENINGS

(See Note)

35-1/4

RETURN

AIR

2-3/4

SUPPLY

AIR

3-3/4

21-1/2

UNIT BASE RAILS

Shown separately to illustrate

Bottom Duct openings. Power

and Gas Piping Connection

location.

(D)

GAS SUPPLY

ENTRY

(B) POWER WIRING

ENTRY

11-1/8

NOTE:

For curb mounted units, refer to the curb hanger

dimensions of the curb for proper size of the

supply and return air duct connections.

8-1/8

(A) CONTROL WIRING

ENTRY

12-1/2

46-5/8

9-1/4

9-3/4

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

TABLE 34: UTILITIES ENTRY DATA

OPENING SIZE

HOLE

USED FOR

(DIA.)

1-1/8” KO

Side

Control Wiring

3/4” NPS (Fem.)

3-5/8” KO

Bottom

Side

Bottom

Power Wiring

3” NPS (Fem.)

2-3/8” KO

Gas Piping (Front)

1-11/16” Hole

Gas Piping (Bottom)

1. One-inch gas piping NPT required.

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

the insulation.

NOTE: All entry holes should be field sealed to prevent rain

water entry into the building.

Unitary Products Group

262292-YTG-C-0707

EVAPORATOR

SECTION

DOT PLUG

(For pressure

drop reading)

40-3/8"

FILTER

ACCESS

SUPPLY

AIR

RETURN

AIR

COMPRESSOR

ACCESS

OUTDOOR

AIR

40-1/2"

SUPPLY AIR

ACCESS

18-5/8"

1" NPT FEMALE

COND. DRAIN

CONNECTION

27-3/4"

Dimensions listed are for side

5-1/8"

RETURN AIR

ACCESS

duct flange openings; see

Field Accessories for Side

Duct Flange Kit.

OUTDOOR AIR

COMPARTMENT

ACCESS

39-5/8"

REAR

VIEW

FIGURE 13:REAR VIEW DIMENSIONS

NOTE:Units are shipped with the bottom duct openings

covered. An accessory flange kit is available for

connecting side ducts.

For bottom duct applications:

For side duct applications:

1. Remove the side panels from the supply and return air

compartments to gain access to the bottom supply and

return air duct covers.

1. Replace the side panels on the supply and return air

compartments with the side duct flange accessory kit

panels.

2. Remove and discard the bottom duct covers. Duct

2. Connect ductwork to the flanges on those panels.

openings are closed with sheet metal covers except when

the unit includes a power exhaust option. The covering

consists of a heavy black paper composition.

3. Replace the side supply and return air compartment

panels.

Unitary Products Group

262292-YTG-C-0707

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

for zero clearance to combustible material when

equipped with electric heaters.

TABLE 35: MINIMUM CLEARANCES

LOCATION

CLEARANCE

36”

Front

24” (Less Economizer)

49” (With Economizer)

Rear

GAS / ELEC Models: A 1” clearance must be provided

between any combustible material and the supply air

ductwork for a distance of 3 feet from the unit.

24” (Less Economizer)

Left Side (Filter Access)

Right Side (Cond. Coil)

36” (With Economizer)

36”

The products of combustion must not be allowed to

accumulate within a confined space and recirculate.

0”

Below Unit

72” With 36” Maximum

Horizontal Overhang (For

Condenser Air Discharge)

Above Unit

Locate unit so that the vent air outlet hood is at least:

• Three (3) feet above any force air inlet located within

10 horizontal feet (excluding those integral to the unit).

1. Units may be installed on combustible floors made from wood or

class A, B, or C roof covering material.

2. Units must be installed outdoors. Overhanging structures or

shrubs should not obstruct condenser air discharge outlet.

3. If economizer is factory installed, the unassembled rain hood

must be removed from its ride along position in front of evapora-

tor coil, or in the outdoor air compartment, prior to final installa-

tion.

• Four (4) feet below, four horizontal feet from, or one

foot above any door or gravity air inlet into the building.

• Four (4) feet from electric and gas meters, regulators

and relief equipment.

ECONOMIZER

MOTORIZED

DAMPER

POWER EXHAUST

RAIN HOOD

(on Return Air Compartment)

SUPPLY AIR

RAIN HOOD

(on Outdoor Air Compartment)

COMPARTMENT

ECONOMIZER / MOTORIZED DAMPER

AND POWER EXHAUST RAIN HOODS

FIXED

OUTDOOR AIR

INTAKE HOOD

(located on

Return Air

Compartment)

36-5/8”

1“ CONDENSATE

DRAIN

(Must be trapped)

16-1/8”

5”

28-3/16”

92”

REAR VIEW

LH VIEW

DETAIL “Y”

UNIT WITH RAIN HOODS

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

Unitary Products Group

262292-YTG-C-0707

47.5" (15, 20, 25 TON)

FIGURE 15:UNIT CENTER OF GRAVITY

ROOF JACK

INSTALLATION

ROOF CURB

INSTALLATION

SLAB ON

GROUND

INSTALLATION

FIGURE 16:TYPICAL UNIT APPLICATIONS

Unitary Products Group

262292-YTG-C-0707

FIGURE 17:FOUR AND SIX POINT LOADS

TABLE 36: FOUR AND SIX POINT LOADS

4 Point Loads (lbs)

Operating

Unit Size

Weight

WR180 Gas

WR240 Gas

WR300 Gas

WR180 Elec

WR240 Elec

WR300 Elec

2900

3200

3300

2700

3000

3100

495

558

575

460

523

540

924

965

516

558

575

481

523

540

1042

1075

860

1042

1075

898

977

1010

6 Point Loads (lbs)

Operating

Weight

Unit Size

WR180 Gas

WR240 Gas

WR300 Gas

WR180 Elec

WR240 Elec

WR300 Elec

2900

3200

3300

2700

3000

3100

330

372

383

307

349

360

344

372

383

321

349

360

494

533

550

460

500

517

643

695

717

599

651

673

616

695

717

573

651

673

473

533

550

440

500

517

Unitary Products Group

262292-YTG-C-0707

25-1/4"

FIGURE 18:UNIT ROOF CURB DIMENSIONS

NOTE: Ducts can be installed into the curb from the roof. All

electrical and gas line connections can be made inside

the curb.

ꢁ³

ꢊꢉꢂ´ꢌ;ꢌꢅꢎꢅꢉꢂ´ꢌ:,'(ꢌ*$6.(7,1*ꢌ)25ꢌ&85%

)5$0(ꢌ$1'ꢌ$//ꢌ'8&7ꢌ6833257ꢌ685)$&(6

81,7ꢌ%$6(

:22'ꢌ1$,/(5

81,7ꢌ%$6(ꢌ5$,/6

ꢅꢂ´

ꢄ³ꢌ0,1ꢋꢌ$%29(ꢌ),1,6+('ꢌ522)

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

&$1¶7ꢌ675,3

FIGURE 19:ROOF CURB DUCT OPENINGS DIMENSION

&85%ꢌ)5$0(

,168/$7,21ꢌ$1'ꢌ522),1*ꢌ0$7(5,$/

,168/$7,21

1. The 2” space between the ducts allows for “jumping” an

existing roof joist.

522)ꢌ'(&.ꢌ$1'ꢌ6833257ꢌ6758&785(

2. The 58-1/2” overall dimension of the ducts allows ductwork

penetration between roof joists that are spaced on 72”

centers.

FIGURE 20:CUT AWAY OF ROOF CURB

Unitary Products Group

262292-YTG-C-0707

THERMOSTAT ¹

TERMINALS

( RCB )

REHEAT

CONTROL BOARD

OCC

TERMINAL BLOCK

HUM

DEHUMIDISTAT³

TO REMOTE SENSOR

2ET04701324 IF USED

¹Electronic programmable Thermostat 2ET0770010024

( includes subbase).

²Terminals A1 and A2 provide a relay output to close the

outdoor economizer dampers when the thermostat

switches to the set-back position.

³Dehumidistat closes on rise in humidity.

TYPICAL

THERMOSTAT

( RCB )

REHEAT

CONTROL

BOARD

OCC

TERMINAL

BLOCK

DEHUMIDISTAT¹

HUM

¹Dehumidistat closes on rise in humidity.

TERMINAL BLOCK TB1

FACTORY OR FIELD

SUPPLIED DISCONNECT

GROUND

LUG

THREE

PHASE

POWER

SUPPLY

FIGURE 21:TYPICAL FIELD WIRING

Unitary Products Group

262292-YTG-C-0707

return, and be available with factory installed options or field

installed accessories. The units shall be factory wired, piped,

charged with R-22 refrigerant and factory tested prior to

shipment. All unit wiring shall be both numbered and color

coded. All units shall be manufactured in a facility certified to

ISO 9001 standards and the cooling performance shall be rated

in accordance with DOE and ARI test procedures. Units shall

be ETL & CGA listed, classified to ANSIZ21.47 standards, UL

1995/CAN/CSA No. 236-M90 conditions.

GUIDE SPECIFICATIONS

GENERAL

Units shall be manufactured by York International Unitary

Products Group in an ISO 9001 certified facility.

York's Sunline Magnum™ units are convertible single package

units. All models have dual independent refrigerant circuits for

efficient part load operation and maximum comfort control.

Although the units are primarily designed for curb mounting on

a roof, they can also be slab-mounted at ground level or set on

steel beams above a finished roof. Cooling only, cooling with

gas heat and cooling with electric heat models are available

with a wide variety of factory-mounted options and field-

installed accessories to make them suitable for almost every

application. All units are self-contained and assembled on full

perimeter base rails with holes in the four corners for overhead

rigging. Every unit is completely piped, wired, charged and

tested at the factory to simplify the field installation and to

provide years of dependable operation. All models (including

those with an economizer) are suitable for either bottom or

horizontal duct connections. Models with power exhaust are

suitable for bottom duct connections only. For bottom duct,

remove the sheet metal panels from the supply and return air

openings through the base of the unit. For horizontal duct,

replace the supply and return air panels on the rear of the unit

with a side duct flange accessory. All supply air blowers are

equipped with a belt drive that can be adjusted to meet the

exact requirements of the job.

UNIT CABINET

Unit cabinet shall be constructed of G90 galvanized steel, with

exterior surfaces coated with a non-chalking, powdered paint

finish, certified at 1000 hour salt spray test per ASTM-B117

standards. Indoor blower section shall be insulated with a

minimum 1/2" thick insulation, coated on the airside. Aluminum

foil faced insulation shall be used in the furnace compartment

and be fastened with ridged fasteners to prevent insulation from

entering the air stream. Cabinet panels shall be "large" size,

easily removable for servicing and maintenance. Full perimeter

base rails shall be provided to assure reliable transit of

equipment, overhead rigging and proper sealing on roof curb

applications. Disposable 2" filters shall be furnished and be

accessible through a removable access door, sealed airtight.

Units filter track shall be designed to accommodate either 1" or

2" filters. Fan performance measuring ports shall be provided

on the outside of the cabinet to allow accurate air

measurements of evaporator fan performance without removing

panels or creating air by-pass of the coils. Condensate pan

shall be internally sloped and conform to ASHRAE 62-89 self-

draining standards. Condensate connection shall be a minimum

of 1" I.D. female and be a ridged mount connection. Unit shall

incorporate a fixed outdoor air damper with an outdoor air

intake opening covered with a bird screen and a rain hood

painted to match the exterior of the unit.

Each unit shall have 4 condenser fan motors. A high static drive

option 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.

INDOOR (EVAPORATOR) FAN ASSEMBLY

Fan shall be a belt drive assembly and include an adjustable-

pitch motor pulley. Job site selected (B.H.P.) brake horsepower

shall not exceed the motors nameplate horsepower rating, plus

the service factor. Units shall be designed not to operate above

service factor. Fan wheel shall be double-inlet type with

forward-curved blades, dynamically balanced to operate

smoothly throughout the entire range of operation. Airflow

design shall be constant air volume.

A variable air volume (VAV) option using a variable frequency

drive (VFD) is available for applications requiring a constant

supply duct static pressure. Units equipped for VAV shall be

controlled by a duct pressure transducer with a 0 - 5” WC

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. The

VAV control board shall operate using factory-installed Supply

Air, Return Air and Outside Air Temperature Sensors. Units

equipped with VFD’s shall have factory-installed manual

bypass as an option.

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/

Unitary Products Group

262292-YTG-C-0707

OUTDOOR (CONDENSER) FAN ASSEMBLY

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

1. High-pressure switch.

The outdoor fans shall be of the direct-driven propeller type,

discharge air vertically, have aluminum blades riveted to

corrosion resistant steel spider brackets and shall be

dynamically balanced for smooth operation. The 4 outdoor fan

motors shall be totally enclosed with permanently lubricated

bearings, internally protected against overload conditions and

staged independently.

2. Freeze-protection thermostat, evaporator coil. If any of

the above safety devices trip, a LED (light-emitting

diode) indicator shall flash a diagnostic code that

indicates which safety switch has tripped.

d. Unit shall incorporate "AUTO RESET" compressor over

temperature, over current protection.

REFRIGERANT COMPONENTS

e. Unit shall operate with conventional thermostat designs

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

Compressors:

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

fault code display.

a. Shall be Scroll compressors internally protected with

internal high-pressure relief and over temperature

protection.

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

voltage protection, and permit cooling operation down to

0 °F.

b. Shall have internal spring isolation and sound muffling to

minimize vibration and noise, and be externally isolated

on a dedicated, independent mounting.

h. Control board shall monitor each refrigerant safety switch

independently.

Coils:

i. Control board shall retain last 5 fault codes in non volatile

memory, which will not be lost in the event of a power

loss.

a. Evaporator and condenser coils shall have aluminum

plate fins mechanically bonded to seamless internally

enhanced copper tubes with all joints brazed. Special

Phenolic coating shall be available as a factory option.

GAS HEATING SECTION (WR***N MODELS)

b. Evaporator and Condenser coils shall be of the direct

expansion, draw-thru, design.

Shall be designed with induced draft combustion with post

purge logic and energy saving direct spark ignition, redundant

main gas valve. Ventor wheel shall be constructed of stainless

steel for corrosion resistance. The heat exchanger shall be of

the tubular type, constructed of T1-40 aluminized steel for

corrosion resistance and allowing minimum mixed air entering

temperature of 25° F. Burners shall be of the in-shot type,

constructed of aluminum coated steel and contain air mixture

adjustments. All gas piping shall enter the unit cabinet at a

single location through either the side or curb, without any field

modifications. An integrated control board shall provide timed

control of evaporator fan functioning and burner ignition.

Heating section shall be provided with the following minimum

protection:

Refrigerant Circuit and Refrigerant Safety Components shall

include:

a. Balance-port thermostatic expansion valve with

independent circuit feed system.

b. Filter drier/strainer to eliminate any moisture or foreign

matter.

c. Accessible service gage connections on both suction

and discharge lines to charge, evacuate, and measure

refrigerant pressure during any necessary servicing or

troubleshooting, without losing charge.

d. The refrigeration system shall provide at least 10° F of

sub-cooling at design conditions.

a. Primary and auxiliary high-temperature limit switches.

b. Induced draft motor speed sensor.

e. All models shall have two independent circuits.

c. Flame roll out switch (automatic reset).

f. Hot gas bypass option shall be factory-installed on

compressor #1 discharge line to provide cooling in low-

load applications. HGBP shall be a standard feature on

VAV models and an optional feature on CV models.

d. Flame proving controls. Unit shall have two independent

stages of capacity.

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

UNIT CONTROLS

Nickel chromium electric heating elements shall be provided as

required by the application with 1 or 2 stage control, as

required, from 13.5 KW to 72 KW capacities. The heating

section shall have a primary limit control(s) and automatic reset

to prevent the heating element system from operating at an

excessive temperature. Units with Electric Heating shall be

wired for a single point power supply with branch circuit fusing

(where required).

a. Unit shall be complete with self-contained low-voltage

control circuit protected by a resetable circuit breaker on

the 24-volt transformer side.

b. Unit shall incorporate a lockout circuit which provides

reset capability at the space thermostat or base unit,

should any of the following standard safety devices trip

and shut off compressor.

Unitary Products Group

262292-YTG-C-0707

UNIT OPERATING CHARACTERISTICS

enthalpy or dual-enthalpy configurations, respectively. If

free-cooling is available, a call for cooling shall modulate

the economizer in order to maintain a supply air tempera-

ture (SAT) programmable set-point. With the use of a

field-installed indoor air quality sensor, the controller shall

provide Demand Ventilation by modulating the econo-

mizer dampers to allow more outside airflow upon detec-

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).

tion of elevated indoor CO concentrations above a

programmable set-point. With an additional field-installed

outdoor air quality sensor, Differential Demand Ventilation

shall be provided.

ELECTRICAL REQUIREMENTS

The outdoor intake opening shall be covered with a rain

hood that matches the exterior of the unit. Water elimina-

tor/filters shall be provided.

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.

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

STANDARD LIMITED WARRANTIES

•

Compressor 5 Years

Heat Exchanger 10 Years

Electric Heat Element 5 Years

Other Parts 1 Year

OPTIONAL OUTDOOR AIR (Shall be made available by

either/or):

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 de-

energized. Dampers shall fully close on power loss.

• 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.

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.

Simultaneous economizer/compressor operation is also

possible. Dampers shall fully close on power loss.

• HIGH ALTITUDE - PROPANE GAS - Contains orifices

required for applications between 2000 and 6000 feet

altitude. Must be used with propane conversion kit.

• BAS-READY 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.

• BURGLAR BARS - Designed to work with above roof

curbs, depending on unit model. Fits duct openings of

curb supply and return air openings.

For units with optional VAV or Simplicity® Intelli-Comfort™

control, free-cooling shall be available while the outdoor

dry bulb temperature (OAT) remains below a programma-

ble set-point of the controller. Field-installed humidity sen-

sors for either outdoor air or outdoor & return air streams

are available to provide free-cooling based on single-

• SIDE DUCT FLANGE - Supply and return air duct flanges

for side duct applications. Do not use on units with power

exhaust.

• HIGH STATIC DRIVE - May Include a belt, blower pulley,

motor pulley or a motor change to enhance blower

performance.

Unitary Products Group

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

• PHASE MONITOR

• ECONOMIZER/MOTORIZED DAMPER RAIN HOOD

(WRN/E/C30 only) - Contains all hood panels and the

hardware for assembling.

• COIL GUARD

• POWERED GFI CONVENIENCE OUTLET

• NON-POWERED GFI CONVENIENCE OUTLET

• ANTI-RECYCLE TIMER - Assures 5-minute off time

between compressor cycles.

• BAS CONTROLS (S implicity® INTELLI-Comfort™, CPC,

JOHNSON, HONEYWELL, NOVAR)

• LOW AMBIENT KIT - Provides unit cooling operation

down to 0°F.

• BAS READY ECONOMIZER ( 2-10 V.D.C. Actuator with-

out a controller)

• COIL GUARD KIT - Guard for cooling coil.

• HINGED FILTER DOOR ACCESS AND TOOL FREE

ACCESS PANELS

OTHER FACTORY INSTALLED OPTIONS

• HINGED TOOL FREE BLOWER, BLOWER MOTOR,

FILTER AND ELECTRICAL ACCESS PANELS

• POWER EXHAUST OPTION - To work in conjunction

with economizers.

• HIGH STATIC DRIVE

• STAINLESS STEEL HEAT EXCHANGER

• STAINLESS STEEL DRAIN PAN

• 2" PLEATED FILTERS

• 4" THROW AWAY FILTERS

• DISCONNECT SWITCH

• TECHNICOAT PHENOLIC COATED CONDENSER AND

EVAPORATOR COIL

• SUPPLY AIR SMOKE DETECTOR

• RETURN AIR SMOKE DETECTOR

• LOW STATIC DRIVE (WR240 & WR300 only)

• ELECTRONIC SINGLE ENTHALPY ECONOMIZER

• DIRTY FILTER SWITCH

• DOUBLE WALL

Subject to change without notice. Printed in U.S.A.

262292-YTG-C-0707

Supersedes: 262292-YTG-B-0107

Unitary

Products

Group

5005

York

Drive

Norman

73069

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