York WR300, WR240 User Manual

®

TECHNICAL GUIDE

SUNLINE MagnaDRY™

GAS/ELECTRIC SINGLE PACKAGE AIR CONDITIONERS

WR 180, 240 & 300

15 thru 25 NOMINAL TONS

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

10.0 EER (25 TONS)

262292-YTG-B-0107

DESCRIPTION

YORK Sunline MagnaDRY™ units are convertible single package high efficiency rooftops. All models have independent dual refrigerant circuits for efficient part load operation. Although the units are primarily designed for curb mounting on a roof, they can also be slab-mounted at ground level or set on steel beams above a finished roof.

All units include:

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

•Two-stage cooling provided by dual independent refrigeration circuits with expansion valves, filter-driers, high and low pressure/loss of charge switches and freezestats

•Scroll compressors

•Two-stage heating provided by dual independent heat exchangers with aluminized steel tubes, redundant gas valves, spark ignition with induced draft logic

•Permanently lubricated motors

•Bottom or side air discharge configuration capability (field convertible)

•Belt Drive Blower Motor with high static drive option

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

•Manufactured under the quality standards of ISO9001

•Simplicity® Control Board

•Zero-25% fixed air damper with hood

•Copper tube/aluminum fin coils

•Hinged filter access and toolless latched doors

•Rigging holes in base rails for lifting

•Single point power connection

•Complete factory package - tested, charged and wired

•CSA agency approvals on all units

WARRANTY

•One-year parts warranty

•A Five-year parts warranty on the compressors and electric heat elements

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

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

262292-YTG-B-0107

TABLE OF CONTENTS

DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 PRODUCT NOMENCLATURE . . . . . . . . . . . . . . . . . . . . . . .3 FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

FACTORY-INSTALLED OPTIONS . . . . . . . . . . . . . . . . . . .8 FIELD-INSTALLED ACCESSORIES . . . . . . . . . . . . . . . . . .9

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

LIST OF FIGURES

Fig. #

Pg. #

1 UNIT CUTAWAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 REHEAT CONTROL BOARD . . . . . . . . . . . . . . . . . . . . . 6 3 REHEAT CONTROLS - PART 1. . . . . . . . . . . . . . . . . . . 7 4 REHEAT CONTROLS - PART 2. . . . . . . . . . . . . . . . . . . 7 5 WR180 MOISTURE REMOVAL - ALT. MODE. . . . . . 21 6 WR180 MOISTURE REMOVAL - NORMAL MODE. . 21 7 WR240 MOISTURE REMOVAL - ALT. MODE. . . . . . 22 8 WR240 MOISTURE REMOVAL - NORMAL MODE. . 22 9 WR300 MOISTURE REMOVAL - ALT. MODE. . . . . . 23

10 WR300 MOISTURE REMOVAL - NORMAL MODE. . 23

11 ALTITUDE/TEMPERATURE CONVERSION

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

12 UNIT DIMENSIONS WR180, 240 & 300

(FRONT VIEW) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 13 REAR VIEW DIMENSIONS . . . . . . . . . . . . . . . . . . . . 47

14 UNIT DIMENSIONS WR180, 240 & 300

(RAINHOOD). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 15 UNIT CENTER OF GRAVITY . . . . . . . . . . . . . . . . . . . 49 16 TYPICAL UNIT APPLICATIONS . . . . . . . . . . . . . . . . 49 17 FOUR AND SIX POINT LOADS . . . . . . . . . . . . . . . . . 50 18 UNIT ROOF CURB DIMENSIONS . . . . . . . . . . . . . . . 51 19 ROOF CURB DUCT OPENINGS DIMENSION . . . . . 51 20 CUT AWAY OF ROOF CURB . . . . . . . . . . . . . . . . . . 51 21 TYPICAL FIELD WIRING . . . . . . . . . . . . . . . . . . . . . . 52

LIST OF TABLES

Tbl. #

Pg. #

1 SOUND POWER RATING . . . . . . . . . . . . . . . . . . . . . 11 2 CAPACITY RATINGS - (ARI 360) . . . . . . . . . . . . . . . 11 3 GAS HEAT RATINGS . . . . . . . . . . . . . . . . . . . . . . . . . 11 4 COOLING CAPACITIES FOR WR180 . . . . . . . . . . . . 12 5 COOLING CAPACITIES FOR WR240 . . . . . . . . . . . . 14 6 COOLING CAPACITIES FOR WR300 . . . . . . . . . . . . 16

7 COOLING CAPACITIES FOR WR180 (ALTERNATE REHEAT MODE). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

8 COOLING CAPACITIES FOR WR240 (ALTERNATE REHEAT MODE). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Tbl. #

Pg. #

9 COOLING CAPACITIES FOR WR300 (ALTERNATE REHEAT MODE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

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

11 WR180 BLOWER PERFORMANCE - 15 TON STD. DRIVE (COOLING ONLY) DOWNFLOW . . . . . . . . . . . 26

12 WR180 BLOWER PERFORMANCE - 15 TON STD. DRIVE (GAS HEAT) DOWNFLOW . . . . . . . . . . . . . . . 27

13 WR180 BLOWER PERFORMANCE - 15 TON HIGH STATIC DRIVE (COOLING ONLY) DOWNFLOW . . . . 28

14 WR180 BLOWER PERFORMANCE - 15 TON HIGH STATIC DRIVE (GAS HEAT) DOWNFLOW . . . . . . . . 29

15 WR240 BLOWER PERFORMANCE - 20 TON STD. DRIVE (COOLING ONLY) DOWNFLOW . . . . . . . . . . . 30

16 WR240 BLOWER PERFORMANCE - 20 TON STD. DRIVE (GAS HEAT) DOWNFLOW . . . . . . . . . . . . . . . 31

17 WR240 BLOWER PERFORMANCE - 20 TON HIGH STATIC DRIVE (COOLING ONLY) DOWNFLOW . . . . 32

18 WR240 BLOWER PERFORMANCE - 20 TON HIGH STATIC DRIVE (GAS HEAT) DOWNFLOW . . . . . . . . 33

19 WR300 BLOWER PERFORMANCE - 25 TON STD. DRIVE (COOLING ONLY) DOWNFLOW . . . . . . . . . . . 34

20 WR300 BLOWER PERFORMANCE - 25 TON STD. DRIVE (GAS HEAT) DOWNFLOW . . . . . . . . . . . . . . . 35

21 WR300 BLOWER PERFORMANCE - 25 TON HIGH STATIC DRIVE (COOLING ONLY) DOWNFLOW . . . . 36

22 WR300 BLOWER PERFORMANCE - 25 TON HIGH STATIC DRIVE (GAS HEAT) DOWNFLOW . . . . . . . . 37

23 BLOWER MOTOR AND DRIVE DATA . . . . . . . . . . . . 38 24 STATIC RESISTANCES. . . . . . . . . . . . . . . . . . . . . . . . 38 25 POWER EXHAUST PERFORMANCE . . . . . . . . . . . . . 38

26 WR ELECTRICAL DATA - STANDARD DRIVE

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

27 WR ELECTRICAL DATA - HIGH STATIC DRIVE MOTOR W/O POWERED CONV. OUTLET . . . . . . . . . 40

28 WR ELECTRICAL DATA - LOW AIRFLOW DRIVE MOTOR W/O POWERED CONV. OUTLET . . . . . . . . . 41

29 WR ELECTRICAL DATA - STANDARD DRIVE

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

30 WR ELECTRICAL DATA - HIGH STATIC DRIVE MOTOR WITH POWERED CONV. OUTLET . . . . . . . . 43

31 WR ELECTRICAL DATA - LOW AIRFLOW DRIVE MOTOR WITH POWERED CONV. OUTLET . . . . . . . . 44

32 PHYSICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 33 SUPPLY FAN VFD WEIGHTS, IN LBS. . . . . . . . . . . . . 45 34 UTILITIES ENTRY DATA . . . . . . . . . . . . . . . . . . . . . . . 46 35 MINIMUM CLEARANCES . . . . . . . . . . . . . . . . . . . . . . 48 36 FOUR AND SIX POINT LOADS . . . . . . . . . . . . . . . . . . 50

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PRODUCT NOMENCLATURE

15-25 Ton Sunline MagnaDRY™ Model Number Nomenclature

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

Product Category

W = A/C, Single Pkg.,

R-22 w/6-Row Evap.

Product Identifier

R = 90.1 w/Reheat

Nominal Cooling Capacity

180 = 15 Ton

240 = 20 Ton

300 = 25 Ton

Heat Type and Nominal Heat Capacity

C00 = Cooling Only. No field installed electric heat

Gas Heat Options

N24 = 240 MBH Output Aluminized Steel

N32 = 320 MBH Output Aluminized Steel

S24 = 240 MBH Output Stainless Steel

S32 = 320 MBH Output Stainless Steel

Electric Heat Options

E18 = 18 KW

E36 = 36 KW

E54 = 54 KW

E72 = 72 KW

Airflow

A = Std. Drive

B = Std. Drive/Single Input Econo.

C = Std. Drive/Single Input Econo./Power Exhaust (Downflow Only)

D = Std. Drive/Motorized Damper N = Hi Static Drive

P = Hi Static Drive/Single Input Econo.

Q = Hi Static Drive/Single Input Econo./Power Exhaust (Downflow Only)

R = Hi Static Drive/Motorized Damper 2 = Low Static Drive

3 = Low Static Drive/Single Input Econo.

4 = Low Static Drive/Single Input Econo./Power Exhaust (Downflow Only)

5 = Low Static Drive/Motorized Damper

Voltage

2 = 208/230-3-60

4 = 460-3-60

5 = 575-3-60

Product Style

A = Style A

Configuration Options (not required for all units)

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

SS Drain Pan

CPC Controller, DFS, APS

Johnson Controller, DFS, APS

Honeywell Controller, DFS, APS

Novar Controller, DFS, APS

Simplicity IntelliComfort Controller

Simplicity IntelliComfort Controller w/ModLinc

Hot Gas Bypass (Standard on VAV, Optional on CV)

Variable Air Volume (VFD) - Not Available with Factory Installed BAS Options

Variable Air Volume (VFD With Manual Bypass) - Not Available with Factory Installed BAS Options Variable Air Volume (VFD-Ready for Customer Installed Drive)

2" Pleated filters 4" Pleated filters

BAS Ready Unit with Belimo Economizer

Double Wall Construction

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

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

		Product Generation
		1 = First Generation
		2 = Second Generation
				Additional Options
		Standard Cabinet			Hinged Filter Door & Toolless Access Cabinet
	AA = None				BA = Hinged Filter Door & Toolless Access Panels
	AB = Phase Monitor				BB = Phase Monitor, Hinged Filter Door & Toolless
	AC = Coil Guard				Access Panels
	AD = Dirty Filter Switch				BC = Coil Guard, Hinged Filter Door & Toolless
	AE = Phase Monitor & Coil Guard				Access Panels
	AF = Phase Monitor & Dirty Filter Switch				BD = Dirty Filter Switch, Hinged Filter Door &
	AG = Coil Guard & Dirty Filter Switch				Toolless Access Panels
	AH = Phase Monitor, Coil Guard & Dirty Filter Switch				BE = Phase Monitor & Coil Guard, Hinged Filter
	RC = Coil Guard & American Flag				Door & Toolless Access Panels
	TA = Technicoat Condenser Coil				BF = Phase Monitor & Dirty Filter Switch, Hinged
	TJ = Technicoat Evaporator Coil				Filter Door & Toolless Access Panels
	TS = Technicoat Evaporator & Condenser Coils				BG = Coil Guard & Dirty Filter Switch, Hinged Filter
					Door & Toolless Access Panels
					BH = Phase Monitor, Coil Guard & Dirty Filter Switch,
					Hinged Filter Door & Toolless Access Panels
	ZZ = If desired option combination is not listed above, ZZ will be assigned and configuration options will be
		located in digits 15-18.
Installation Options
A = No Options Installed
B = Option 1
C = Option 2
D = Options 1 & 2
E = Option 3
F = Option 4
G = Options 1 & 3
H = Options 1 & 4
J = Options 1, 2 & 3
K = Options 1, 2, & 4
L = Options 1,3 & 4
M = Options 1, 2, 3, & 4
N = Options 2 & 3
P = Options 2 & 4
Q = Options 2, 3, & 4
R = Options 3 & 4
S = Option 5
T = Options 1 & 5
U = Options 1, 3, & 5
V = Options 1, 4, & 5
W = Options 1, 3, 4, & 5
X = Options 3 & 5
Y = Options 4 & 5
Z = Options 3, 4 & 5
	Options
1 = Disconnect
2 = Non-Pwr'd Conv. Outlet
3 = Smoke Detector S.A.
4 = Smoke Detector R.A.
5 = Pwr'd Conv. Outlet

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FEATURES

All models are available with a wide variety of factory-mounted options such as stainless steel heat exchangers, phase monitor, dirty filter switch, and coil guard to make them suitable for almost every application.

All units are self-contained and assembled on full perimeter base rails with holes in the four corners for overhead rigging. Every unit is completely piped, wired, charged and tested at the factory to simplify the field installation and to provide years of dependable operation.

All models (including those with an economizer) are suitable for either bottom or horizontal duct connections. Models with factory installed power exhaust are suitable for bottom duct connections only. For bottom duct, you remove the sheet metal panels from the supply and return air openings through the base of the unit. For horizontal duct, you replace the supply and return air panels on the rear of the unit with a side duct flange accessory.

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

•Single enthalpy economizer

•Single enthalpy economizer with power exhaust

•Motorized outdoor air damper

A fixed outdoor air intake assembly will be shipped in the return air compartment of all units ordered without an economizer or motorized outdoor air damper option. The assembly includes a rain hood with a damper that can be set for 10, 15 or 25% outdoor air. With bottom duct connections, the intake damper assembly should be mounted over the opening in the return air panel. With horizontal ductwork, it should be mounted on the return air duct.

All supply air blowers are equipped with a belt drive that can be adjusted to meet the exact requirements of the job. A high static drive option is available for applications with a higher CFM and/ or static pressure requirement. A variable air volume (VAV) option using a variable frequency drive is available for applications requiring a constant supply duct pressure. A differential pressure transducer is used to monitor supply duct static pressure and return a speed reference signal to the VFD to control the output of the indoor blower motor.

All compressors include scroll compressors and internal pressure relief. Every refrigerant circuit includes an expansion valve, a liquid line filter-drier, a discharge line high pressure switch and a suction line with a freezestat and low pressure/ loss of charge switch to protect all system components. A hot gas bypass option, consisting of an adjustable compressor discharge bypass valve, is available for low cooling load applications.

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

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

outdoor ambient without additional assistance. Optionally, the control board can be programmed to lockout the compressors when the outdoor air temperature is low or when free cooling is available.

•Anti-Short Cycle Protection - To aid compressor life, an anti-short cycle delay is incorporated into the standard controls. Compressor reliability is further ensured by programmable minimum run times. For testing, the anti short cycle delay can be temporarily overridden with the push of a button.

•Lead-Lag - An integrated Lead-Lag option allows equal run time hours on all compressors, thereby extending the life of all compressors. This option is selectable on the unit control board.

•Fan Delays - Fan on and fan off delays are fully programmable. Furthermore, the heating and cooling fan delay times are independent of one another. All units are programmed with default values based upon their configuration of cooling and heat.

•Safety Monitoring - The control board monitors the high and low-pressure switches, the freezestats, the gas valve, if applicable, and the temperature limit switch on gas and electric heat units. The unit control board will alarm on ignition failures, compressor lockouts and repeated limit switch trips.

•Nuisance Trip Protection and Strikes - To prevent nuisance trouble calls, the control board uses a “three times, you’re out” philosophy. The high and low-pressure switches and the freezestats must trip three times within two hours before the unit control board will lock out the associated compressor.

•On Board Diagnostics - Each alarm will energize a trouble light on the thermostat, if so equipped, and flash an alarm code on the control board LED. Each high and low-pressure switch alarm as well as each freezestat alarm has its own flash code. The control board saves the five most recent alarms in memory, and these alarms can be reviewed at any time. Alarms and programmed values are retained through the loss of power.

All units have long lasting powder paint cabinets with 1000 hour salt spray test approval under ASTM-B117 procedures.

All models are CSA approved.

•Warranty - All models include a one-year limited parts warranty on the complete unit. Compressors and electric heater elements carry a five-year warranty. Gas heat exchangers carry a 10-year parts warranty.

•Gas Heat Operation - All gas heat units are built with two heating sections for two equal stages of capacity control. Each section includes a durable heat exchanger with aluminized steel or optional stainless steel tubes, a redundant gas valve, spark ignition, power venting, an ignition module for 100% shut-off and all of the safety controls required to meet the latest ANSI standards.

The gas supply piping can be routed into the heating compartment through a hole in the base pan of the unit or through a knockout in the piping panel on the front of the unit.

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262292-YTG-B-0107

FIGURE 1: UNIT CUTAWAY

•Electric Heat Operation - All electric heat models (factory installed only) are wired for a single power source and include a bank of nickel chromium elements mounted at the discharge of the supply air blower to provide a high velocity and uniform distribution of air across the heating elements. Every element is fully protected against excessive current and temperature by fuses and two thermal limit switches.

•The power supply wiring can be routed into the control box through a threaded pipe connection in the base pan of the unit or through a knockout in the wiring panel on the front of the unit.

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

REHEAT MODE SEQUENCE OF OPERATION

The reheat control board allows the user to select two different modes of operation via a jumper connection on the board. (See Figure 2.) Each mode is described below. Refer to Figures 2 - 4 when reading this section.

LOCATION OF VFD (Optional)

LOCATION OF VFD BYPASS (Optional)

“NORMAL” MODE

When the reheat control board (RCB) detects a need for dehumidification (24VAC) at "HUM" via the field supplied dehumidistat connected to RHTB-1 and RHTB-2 and there is not a call for cooling, it energizes the hot gas relay (HGR), which energizes the 3-way valve (SOL 3), the condenser coil valve (SOL 2), and de-energizes the reheat coil bleed valve (SOL 1). The Y1 signal is passed to the unit control board (UCB), which engages circuit # 1, resulting in circuit #1 reheat mode operation.

When the room thermostat calls for first stage cooling, with or without a call for dehumidification, the RCB senses a signal through "Y1", de-energizing the HGR, which de-energizes SOL 3 and SOL 2, and energizes SOL 1, engaging circuit # 1, resulting in circuit #1 cooling mode operation.

When the room thermostat calls for second stage cooling, the RCB senses a signal through "Y1" & "Y2" and engages circuit #1 and circuit #2 in the cooling mode.

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

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262292-YTG-B-0107

Anytime there is a call for 2 stages of cooling, the unit will not operate in the reheat mode, even if there is a call for dehumidification at "HUM".

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

On units with economizers, the unit will not operate in the reheat mode if there is a call for cooling and the economizer is operating as first stage of cooling.

All safety devices function as previously described.

"ALTERNATE” MODE

When the RCB detects a need for dehumidification (24VAC) at "HUM" via the field supplied dehumidistat connected to RHTB-1 and RHTB-2, and there is not a call for cooling, it energizes the HGR, which energizes the SOL 3, SOL 2, and de-energizes SOL 1. The unit then operates with circuit #1 in reheat mode and circuit #2 in cooling mode.

When the room thermostat calls for first stage cooling while there is still a call for dehumidification, no operational change is made. The call for cooling is ignored and the unit continues to operate with circuit #1 in reheat mode and circuit #2 in cooling mode.

When the room thermostat calls for second stage cooling, the RCB senses a signal through "Y1" & "Y2" and de-energizes the HGR, which de-energizes SOL 3 and SOL 2, and energizes SOL 1. Both circuits operate in the cooling mode.

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

Anytime there is a call for 2 stages of cooling, the unit will not operate in the reheat mode, even if there is still a call for dehumidification at "HUM".

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

All safety devices function as previously described.

R

Y1

P4

Y2

K1

G

W1

K2

W2

OCC

K4

C

K3

COM

`	P6
	P5	P3

								HGRR
	HGR
					HUM
	MODE							DEHUMIDISTAT
SELECTION								HARNESS
	JUMPER							CONNECTION

FIGURE 2: REHEAT CONTROL BOARD

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UCB	RHB
UNIT CONTROL	REHEAT CONTROL
BOARD	BOARD

HUM

HUMIDIFY

TERMINAL

RHR

REHEAT

RELAY

RHTB

REHEAT

TERMINAL

BLOCK

FIGURE 3: REHEAT CONTROLS - PART 1

REHEAT

SOLENOID 1

REHEAT		REHEAT
SOLENOID 3
		SOLENOID 2

UCB

UNIT CONTROL

BOARD

RHB

REHEAT

CONTROL

BOARD

FIGURE 4: REHEAT CONTROLS - PART 2

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		262292-YTG-B-0107
	FACTORY-INSTALLED OPTIONS	A ‘VFD-ready’ option provides the provisions for a cus-
	• SINGLE INPUT ELECTRONIC ENTHALPY	tomer-installed drive. The unit comes with a mounting
		bracket installed in the Blower Access compartment which
	ECONOMIZERS - Includes a slide-in / plug-in damper	may accommodate other vendor’s drives depending on
	assembly with fully modulating spring-return motor	their size. In order to utilize the unit’s mounting bracket,
	actuator capable of introducing up to 100% outdoor air	the maximum recommended drive dimensions are as fol-
	with nominal 1% leakage type dampers.	lows:
	The enthalpy system contains one sensor that monitors	For 5-hp motor applications ........................13” H x 6” W x 7” D
	the outdoor air and determines when the air is cool
		For 7.5 thru 15-hp motor applications.........13” H x 8” W x 8” D
	enough and dry enough to provide free cooling.
	The rainhood is painted to match the basic unit and must	If the customer-installed drive will not fit in the allotted
	be field-assembled before installing.	space, then it will have to be mounted within a NEMA-4
	• POWER EXHAUST - Our single economizer options are	enclosure for outside installation or inside the building on
		a perpendicular wall not subjected to excessive tempera-
	available with power exhaust. Whenever the outdoor air
		ture, vibration, humidity, dust, corrosive gas, explosive
	intake dampers are opened for free cooling, the exhaust
		gas, etc.
	fan will be energized to prevent the conditioned space
	from being over-pressurized during economizer operation.	A terminal block located in the control box is provided for
	The exhaust fan, motor and controls are installed and	field connection of the VFD controls.
	wired at the factory. The rain hood must be assembled	• HOT GAS BYPASS - To allow for low cooling load opera-
	and installed in the field.
		tion, a direct-acting pressure-modulating bypass control
	• MOTORIZED OUTDOOR AIR INTAKE DAMPER -
		valve installed on the system #1 discharge line is used to
	Includes a slide-in / plug-in damper assembly with a 2-
		divert high temperature, high pressure refrigerant around
	position, spring return motor actuator which opens to a
		the TXV in order to maintain a desired minimum evaporator
	pre-set position whenever the supply air blower is
		pressure. HGBP is standard on all units with VAV and
	operating and will drive fully closed when the blower unit
		optional with CV units.
	shuts down.
		• FILTER OPTIONS - Standard units are shipped with 2”
	The rain hood is painted to match the basic unit and must
		throw-away filters installed. 2” pleated and 4” pleated
	be field assembled before installing.
		filters are offered as a factory installed option.
	• PHENOLIC COATED EVAPORATOR, REHEAT, AND
		• CONVENIENCE OUTLET - This 110 volt outlet can be
	CONDENSER COILS - Special coating process that
		“powered” by the unit with a stepdown transformer or you
	utilizes Technicoat 10-1" processes. Coating is applied by
		may order the unit with a “non-powered” convenience
	total immersion of the complete coil for maximum
		outlet that can be wired in the field.
	protection.
		• DISCONNECT SWITCH - For gas heat units and cooling
	• ELECTRIC HEATERS wired for single point power
		units with electric heat, a HACR breaker sized to the unit
	supply. These nickel chromium heater elements are
		is provided. For cooling only units, a switch sized to the
	provided with limit and automatic reset capability to
		largest electric heat available for the particular unit is
	prevent operation at excessive temperatures.
		provided. Factory installed option only.
	• VARIABLE AIR VOLUME (VAV) - A factory-installed
		• DOUBLE WALL CONSTRUCTION - Optional double wall
	variable frequency drive (VFD), mounted in the Blower
		construction is available to provide smooth inner surfaces
	Access compartment, is used to control the speed of the
		for easy and effective cleaning to reduce risk of dirt and
	indoor blower motor in order to maintain a constant static
		bacterial accumulation. Fiberglass insulation is
	pressure in the supply duct. A pressure transducer and
		sandwiched between heavy gauge steel sheets to form a
	VAV control board are mounted inside the control box.
		durable, rigid casing to withstand higher working
	The drive comes completely wired and pre-programmed
		pressures and impact forces. The heavy-duty construction
	from the factory.
		provides excellent acoustic and thermal insulation and
	An optional, factory-installed manual bypass switch avail-
		eliminates erosion of insulation material and
	able with factory-installed VFD can be found in the Blower	contamination of the air stream.
	Motor Access compartment. The switch can be used to	• BAS - Building Automation System Controls
	either route power to the VFD for modulating control of the
		(available on two-system cooling product only).
	blower motor, to bypass the drive and operate the motor
		Simplicity® INTELLI-Comfort™ CONTROL - The York®
	at full speed, or to power the drive (and not the motor) for
	diagnostic purposes.	Simplicity® INTELLI-Comfort™ control is factory installed.
		It includes a supply air sensor, a return air sensor, and an
	Due to space limitations, VAV is not available with any of
		outside air sensor. There are provisions for a field installed
	the factory-installed BAS options described below, but is	dirty filter indicator switch, an air-proving switch, an Out-
	available with ‘BAS-ready’ models. Terminal blocks are	side Air Humidity sensor, a Return Air Humidity sensor, an
	provided in the control box for field wiring of the customer-	Inside IAQ sensor, and an Outside Air IAQ sensor. Con-
	installed BAS.

8	Unitary Products Group

262292-YTG-B-0107

struction mode operation, 365-day real time clock with 7 day programming plus holiday scheduling is built-in. Two different modes of demand ventilation are achieved through the INTELLI-Comfort™ using CO2 sensors. It uses an inside CO2 sensor to perform Demand Ventilation. It can also use an Outside CO2 sensor to perform Differential Demand Ventilation. It uses a Patented Comfort Ventilation algorithm to provide comfortable ventilation air temperature. The patented economizer-loading algorithm will protect the equipment when harsh operating conditions exist. Humidity in the occupied space or return duct can be monitored and controlled via humidity sensors and the on-board connection for hot gas re-heat system. It uses the INTELLI-Start™ algorithm to maximize energy savings by recovering the building from the Unoccupied Setpoints to the Occupied Setpoints just in time for the Occupied Time Period to begin. The Simplicity® INTELLIComfort™ balances space temperature, ventilation air temperature, CO2 and humidity for ultimate comfort.

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

Novar® BAS CONTROL - The Novar® ETC-3 building automation system controller is factory installed. Includes supply air sensor, return air sensor, dirty filter indicator switch, and air proving switch.

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

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

HONEYWELL BAS CONTROL - The Honeywell W7750C building automation system controller is factory installed. Includes air supply sensor, return air sensor, dirty filter indicator switch, and air proving switch.

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

•SMOKE DETECTORS - (supply air & return air) The smoke detectors stop operation of the unit by interrupting power to the control board if smoke is detected within the air compartment.

Factory installed smoke detectors in the return air, may be subjected to freezing temperatures during “off” times due to out side air infiltration. these smoke detectors have an operational limit of 32°F to 131°F. smoke detectors installed in areas that could be out side those limitations will have to be moved to prevent having false alarms.

•STAINLESS STEEL HEAT EXCHANGER - For applications in corrosive environments, this option provides a full stainless steel heat exchanger assembly.

•STAINLESS STEEL DRAIN PAN - An optional rust-proof stainless steel drain pan is available to provide years of trouble-free operation in corrosive environments.

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

•HIGH SPEED DRIVE - May include a belt, blower pulley, motor pulley or a motor change to enhance blower performance.

•DIRTY FILTER SWITCH - This kit includes a differential pressure switch that energizes the fault light on the unit thermostat, indicating that there is an abnormally high pressure drop across the filters. Factory installed option or field installed accessory.

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

NOTE: Knobs are shipped separately within the unit to prevent shipping damage. These must be field installed for toolless operation.

•LOW SPEED DRIVE - Includes a motor change when high airflow is not required. (WR300 & WR240 only)

FIELD-INSTALLED ACCESSORIES

•SINGLE INPUT ELECTRONIC ENTHALPY ECONOMIZERS - Includes a slide-in / plug-in damper assembly with fully modulating spring-return motor actuator capable of introducing up to 100% outdoor air with nominal 1% leakage type dampers.

The enthalpy system contains one sensor that monitors the outdoor air and determines when the air is cool enough and dry enough to provide free cooling.

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

•MOTORIZED OUTDOOR AIR INTAKE DAMPER - Includes a slide-in / plug-in damper assembly with a 2- position, spring return motor actuator which opens to some pre-set position whenever the supply air blower is operating and will drive fully closed when the blower unit shuts down.

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

Unitary Products Group

9

262292-YTG-B-0107

Power exhaust is not available as a field installed option.

•ROOF CURBS - Fourteen-inch high roof curbs provide a water-tight seal between the unit and the finished roof. These full perimeter curbs meet the requirements of the National Roofing Contractors Association (NRCA) and are shipped knocked-down for field assembly.

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

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

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

•HIGH ALTITUDE PROPANE - Burner orifices and pilot orifices are provided for proper furnace operation at altitudes up to 6,000 feet. This accessory supplements the basic propane conversion kit.

•SIDE DUCT FLANGES - One-inch flanges replace the supply and return air panels on the rear of the unit to accommodate horizontal duct connections. These flanges can also be used individually for bottom supply/horizontal return or horizontal supply/bottom return. They cannot be used on units with power exhaust.

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

pressure on units with an economizer without power exhaust. This accessory includes a rain hood, a bird screen and a fully assembled damper. With bottom duct connections, the damper should be mounted over the opening in the return air panel. With horizontal ductwork, the accessory should be mounted on the return air duct.

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

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

•FLUE EXHAUST EXTENSION KIT - In locations with wind or weather conditions which may interfere with proper exhausting of furnace combustion products, this kit can be installed to prevent the flue exhaust from entering nearby fresh air intakes.

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

•CO2 SENSOR - Senses CO2 levels and automatically overrides the economizer when levels rise above the present limits.

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

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

10	Unitary Products Group

262292-YTG-B-0107

TABLE 1: SOUND POWER RATING1

		ESP	BLOWER						SOUND POWER (db 10-12				Watts)
UNIT
	CFM						Octave Band Centerline Frequency (Hz)								SWL	dB(A)
SIZE
																@
		IWG	RPM	BHP	63	125		250	500	1,000	2,000		4,000	8,000	dB(A)
																10Ft.2
WR180	6,000	1.00	1,080	4.60	99	99		89	82	84	77		72	67	89	56
WR240	8,000	1.00	1,120	6.65	102	102		92	85	87	80		75	70	92	59
WR300	10,000	1.30	1160	12.5	108	108		98	91	93	86		81	76	98	65

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

MODEL	MBH	EER2	IPLV3
COOLING ONLY
WR180C/E00	180	11.9	12.7
WR240C/E00	240	11.0	11.3
WR300C/E00	300	10.0	10.6
COOLING WITH GAS HEAT
WR180N/S	180	11.9	12.7
WR240N/S	240	11.0	11.3
WR300N/S	300	10.0	10.6
COOLING WITH ELECTRIC HEAT
WR180E18	180	11.9	12.7
WR180E36	180	11.9	12.7
WR180E54	178	11.7	12.5
WR180E72	178	11.7	12.5
WR240E18	240	11.0	11.3
WR240E36	240	11.0	11.3
WR240E54	238	10.8	11.1
WR240E72	238	10.8	11.1
WR300E18	300	10.0	10.6
WR300E36	300	10.0	10.6
WR300E54	298	9.8	10.4
WR300E72	298	9.8	10.4

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.

TABLE 3: GAS HEAT RATINGS

MODEL	MBH INPUT	MBH OUTPUT
WR180N/S24	300	240
WR180N/S32	400	320
WR240N/S24	300	240
WR240N/S32	400	320
WR300N/S24	300	240
WR300N/S32	400	320

NOTE:All gas units are two-stage heating. First stage is 50% of total.

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

For units with VFD and electric or gas heat, the speed of the indoor blower motor continues to be controlled by duct static pressure via the VAV control board.

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

Unitary Products Group

11

																	262292-YTG-B-0107
TABLE 4: COOLING CAPACITIES FOR WR180
Air on Evaporator Coil								Temperature of Air on Condenser Coil
					75°F									85°F
	WB	Total	Total2		Sensible Capacity (MBH)*						Total	Total2		Sensible Capacity (MBH)*
CFM		Cap.1	Input		Return Dry Bulb (°F)						Cap.1	Input		Return Dry Bulb (°F)
	(°F)	(MBH)	(kW)								(MBH)	(kW)
				90	85		80	75	70	65			90	85		80		75	70	65
	77	217	10.8	74	71		59	45	30	16	210	11.8	80	73		58		43	28	14
3750	72	200	10.5	115	100		86	72	57	43	193	11.6	114	99		85		70	55	40
	67	184	10.2	156	128		113	99	84	70	177	11.3	148	126		111		96	82	67
	62	165	9.9	163	153		132	117	103	88	160	11.0	159	152		130		116	101	86
	77	227	11.0	100	83		66	48	31	14	219	11.9	99	81		64		47	29	12
4500	72	210	10.6	130	113		96	78	61	44	202	11.7	128	111		93		76	59	41
	67	192	10.3	161	143		126	108	91	74	185	11.4	158	140		123		106	88	71
	62	172	10.0	171	164		147	129	112	95	167	11.1	166	162		144		127	109	92
	57	171	10.0	171	171		152	135	118	100	166	11.1	166	166		150		132	115	97
	77	237	11.1	127	95		72	52	32	11	228	12.1	117	90		70		50	30	10
5250	72	219	10.8	146	126		105	85	65	45	210	11.8	143	123		102		82	62	42
	67	201	10.4	165	159		139	118	98	78	192	11.5	168	155		135		115	94	74
	62	180	10.1	178	175		161	141	121	101	174	11.3	173	171		158		138	118	98
	57	178	10.1	178	178		168	148	127	107	173	11.2	173	173		164		144	124	104
	77	247	11.2	153	107		79	56	32	9	237	12.2	136	99		76		53	31	8
6000	72	228	10.9	161	138		115	92	69	45	219	11.9	157	134		111		88	66	43
	67	209	10.5	170	170		151	128	105	82	200	11.6	178	169		146		124	101	78
	62	187	10.2	186	186		176	153	130	107	181	11.4	180	180		172		149	126	103
	57	186	10.2	186	186		183	160	137	114	180	11.3	180	180		178		155	133	110
	72	236	10.9	176	150		125	99	73	47	226	11.9	171	145		120		95	70	44
6750	67	217	10.6	184	187		164	138	112	86	207	11.7	185	181		158		133	108	82
	62	194	10.3	193	193		188	162	136	110	187	11.4	186	186		182		157	131	106
	57	193	10.2	193	193		191	166	140	114	186	11.3	186	186		185		160	135	109
	72	245	10.9	191	163		134	106	77	49	233	12.0	184	157		129		101	74	46
7500	67	224	10.6	199	199		177	148	120	91	213	11.7	192	192		170		142	114	87
	62	201	10.3	199	199		199	171	142	114	193	11.4	192	192		192		164	137	109
	57	200	10.3	200	200		200	171	143	114	192	11.4	192	192		192		165	137	109
					95°F									105°F
	77	203	12.8	87	72		57	42	27	12	195	14.3	77	69		53		38	22	6
3750	72	186	12.6	113	98		83	68	53	38	179	14.1	111	96		80		64	49	33
	67	170	12.4	139	124		109	94	79	64	164	13.9	144	122		107		91	75	60
	62	155	12.1	155	152		129	114	99	84	151	13.7	148	149		125		109	94	78
	77	211	12.9	97	80		62	45	27	10	202	14.4	95	77		59		41	23	5
4500	72	194	12.7	126	109		91	74	56	39	186	14.2	124	106		88		70	52	34
	67	177	12.5	155	137		120	103	85	68	170	14.0	153	135		117		99	81	63
	62	161	12.3	161	159		142	124	107	89	157	13.8	155	155		137		119	101	83
	57	161	12.2	161	161		147	129	112	95	156	13.7	156	156		141		123	105	87
	77	219	13.0	108	88		68	48	28	8	209	14.5	113	84		64		44	23	3
5250	72	202	12.8	139	119		99	79	59	39	192	14.3	136	116		96		75	55	35
	67	184	12.6	171	151		131	111	91	71	175	14.1	162	148		127		107	87	66
	62	168	12.4	168	167		155	135	115	95	162	13.8	162	161		149		129	109	88
	57	168	12.3	168	168		160	140	120	100	162	13.8	162	162		154		134	113	93
	77	228	13.2	119	96		74	51	29	6	216	14.6	131	92		69		47	24	1
6000	72	209	13.0	153	130		108	85	63	40	199	14.4	149	126		104		81	58	35
	67	191	12.7	186	164		141	119	96	74	181	14.2	167	161		138		115	92	70
	62	174	12.5	174	174		167	145	122	100	168	13.9	167	167		162		139	116	94
	57	174	12.4	174	174		173	151	128	106	167	13.9	167	167		166		144	121	98
	72	216	13.0	165	140		116	91	66	42	204	14.4	160	136		111		86	62	37
6750	67	197	12.8	186	174		152	127	103	78	187	14.2	172	169		148		123	99	74
	62	179	12.5	179	179		176	151	127	102	172	13.9	172	172		169		145	120	95
	57	179	12.5	179	179		179	154	130	105	172	13.9	172	172		172		147	122	98
	72	222	13.0	177	151		124	97	70	43	210	14.4	172	145		119		92	65	39
7500	67	203	12.8	185	185		163	136	109	82	192	14.2	177	177		158		131	105	78
	62	185	12.5	185	185		185	158	131	104	177	13.9	177	177		177		150	124	97
	57	185	12.5	185	185		185	158	131	104	177	13.9	177	177		177		150	123	97

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

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

All Sensible Capacity

12	Unitary Products Group

262292-YTG-B-0107

TABLE 4: COOLING CAPACITIES FOR WR180 (CONTINUED)

	Air on Evaporator Coil							Temperature of Air on Condenser Coil
						115°F								125°F
		WB	Total	Total2		Sensible Capacity (MBH)*					Total	Total2		Sensible Capacity (MBH)*
	CFM		Cap.1	Input		Return Dry Bulb (°F)					Cap.1	Input		Return Dry Bulb (°F)
		(°F)	(MBH)	(kW)							(MBH)	(kW)
					90	85	80	75	70	65			90	85	80	75	70	65
		77	187	15.8	73	66	50	34	17	-	179	17.3	74	60	47	30	13	-
	3750	72	172	15.6	110	93	77	61	44	28	165	17.1	108	91	74	57	40	23
		67	157	15.4	146	120	104	88	71	55	151	16.9	142	118	101	84	67	50
		62	147	15.2	147	147	121	104	88	72	143	16.7	145	143	117	100	83	66
		77	193	15.9	92	74	55	36	18	-	184	17.3	92	70	51	32	13	-
	4500	72	177	15.7	122	103	84	66	47	29	169	17.1	119	100	81	62	43	24
		67	162	15.5	151	133	114	95	77	58	155	16.9	146	130	111	92	73	54
		62	152	15.2	151	151	133	114	96	77	147	16.7	147	146	128	109	90	71
		57	151	15.2	151	151	136	117	99	80	146	16.6	146	146	130	111	92	73
		77	198	15.9	111	81	60	39	18	-	188	17.4	111	80	56	35	14	-
	5250	72	183	15.7	133	113	92	71	51	30	173	17.2	130	109	88	67	46	25
		67	167	15.5	156	145	124	103	83	62	159	17.0	150	142	121	100	79	58
		62	156	15.3	156	156	144	124	103	82	151	16.8	149	149	139	118	97	76
		57	156	15.2	156	156	148	127	106	86	150	16.7	150	150	141	120	99	78
		77	204	16.0	130	88	65	42	19	-	193	17.4	130	90	60	37	14	-
	6000	72	188	15.8	145	122	99	77	54	31	177	17.2	142	118	95	72	49	26
		67	172	15.6	160	157	134	111	88	66	162	17.0	153	147	131	108	84	61
		62	161	15.4	160	160	156	133	110	87	154	16.8	153	153	151	127	104	81
		57	160	15.3	160	160	160	137	114	91	154	16.7	154	154	153	130	107	84
		72	193	15.8	156	131	106	82	57	32	182	17.2	151	127	102	77	52	28
	6750	67	176	15.6	165	163	144	119	94	69	166	17.0	157	154	139	115	90	65
		62	165	15.4	165	165	163	138	113	89	158	16.8	157	157	156	131	107	82
		57	165	15.3	165	165	164	140	115	90	157	16.7	157	157	157	133	107	83
		72	198	15.8	167	140	113	87	60	34	186	17.1	161	135	108	82	55	29
	7500	67	181	15.6	169	169	153	126	100	73	170	16.9	161	161	148	122	95	69
		62	169	15.3	169	169	169	143	116	90	162	16.7	161	161	161	135	109	82
		57	169	15.2	169	169	169	143	116	89	161	16.6	161	161	161	136	108	82

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

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

All Sensible Capacity

Unitary Products Group

13

																	262292-YTG-B-0107
TABLE 5: COOLING CAPACITIES FOR WR240
Air on Evaporator Coil								Temperature of Air on Condenser Coil
					75°F									85°F
	WB	Total	Total2		Sensible Capacity (MBH)*						Total	Total2		Sensible Capacity (MBH)*
CFM		Cap.1	Input		Return Dry Bulb (°F)						Cap.1	Input		Return Dry Bulb (°F)
	(°F)	(MBH)	(kW)								(MBH)	(kW)
				90	85		80	75	70	65			90	85		80		75	70	65
	77	287	15.1	117	99		80	62	43	25	278	16.4	112	96		77		58	39	20
5000	72	263	14.6	152	134		115	96	78	59	254	16.0	150	131		112		93	74	55
	67	238	14.2	187	168		150	131	113	94	230	15.6	187	165		146		127	108	89
	62	219	13.8	215	198		176	157	139	120	212	15.3	210	198		172		153	134	115
	77	304	15.2	133	111		89	67	45	23	294	16.5	130	108		85		63	41	19
6000	72	278	14.8	171	150		128	106	84	62	269	16.1	169	146		124		102	79	57
	67	252	14.3	210	188		166	144	122	100	243	15.7	207	185		162		140	118	95
	62	232	14.0	228	217		195	173	151	129	224	15.4	222	214		191		169	147	124
	57	229	13.8	229	227		205	183	161	139	222	15.2	222	221		199		177	154	132
	77	320	15.4	149	123		98	73	47	22	310	16.7	148	120		94		68	43	17
7000	72	293	14.9	190	165		140	115	90	64	283	16.3	187	162		136		111	85	59
	67	265	14.4	233	207		182	157	132	107	256	15.9	226	204		179		153	127	102
	62	244	14.1	241	235		214	189	164	138	236	15.5	234	230		210		185	159	134
	57	241	13.9	241	240		225	200	175	149	234	15.3	234	234		219		193	167	142
	77	337	15.5	165	135		107	78	50	21	325	16.8	167	131		102		74	45	16
8000	72	308	15.1	210	181		153	124	96	67	297	16.4	206	178		149		120	91	62
	67	279	14.6	254	227		199	170	142	113	269	16.0	246	224		195		166	137	108
	62	257	14.2	254	254		233	205	176	148	248	15.7	246	246		230		201	172	143
	57	254	14.1	254	254		245	217	188	160	246	15.5	246	246		239		210	181	152
	72	302	15.0	213	184		155	126	97	69	291	16.4	209	180		151		122	93	64
8500	67	274	14.5	249	230		202	173	144	115	264	16.0	241	227		198		169	140	110
	62	252	14.2	249	249		239	210	181	152	243	15.6	241	241		233		204	174	145
	57	249	14.0	249	249		245	216	187	158	241	15.4	241	241		237		208	179	150
	72	296	14.9	216	187		157	128	99	70	285	16.3	212	183		153		124	95	65
9000	67	268	14.4	244	224		205	176	147	118	258	15.9	236	231		201		172	142	113
	62	247	14.1	244	244		244	215	186	157	238	15.6	236	236		236		207	177	148
	57	244	13.9	244	244		244	215	186	157	236	15.3	236	236		236		207	177	148
					95°F									105°F
	77	270	17.6	105	93		73	54	35	15	255	19.4	103	89		70		50	31	11
5000	72	246	17.3	147	127		108	89	69	50	234	19.1	143	124		104		85	65	46
	67	222	17.0	188	162		143	123	104	84	212	18.8	183	158		139		119	100	80
	62	206	16.7	205	197		169	149	130	111	195	18.5	192	190		164		144	125	105
	77	285	17.8	127	104		82	59	36	14	269	19.6	127	101		78		55	32	9
6000	72	259	17.5	166	143		120	97	75	52	246	19.3	162	139		116		93	70	48
	67	234	17.2	204	181		159	136	113	91	224	19.0	197	177		155		132	109	86
	62	217	16.8	216	210		188	165	142	120	206	18.7	204	202		183		160	137	114
	57	216	16.6	216	216		193	170	147	125	205	18.1	205	205		185		162	139	117
	77	299	17.9	149	116		90	64	38	12	283	19.8	150	112		86		59	33	7
7000	72	273	17.6	184	158		132	106	80	54	259	19.5	180	154		128		102	76	49
	67	247	17.3	220	201		175	149	123	97	236	19.2	211	197		170		144	118	92
	62	228	17.0	227	224		207	181	155	129	217	18.8	216	214		201		175	149	123
	57	227	16.7	227	227		212	186	160	134	216	18.3	216	216		204		178	152	125
	77	314	18.1	171	128		98	69	40	10	297	19.9	173	123		94		64	34	5
8000	72	286	17.8	203	174		145	115	86	56	272	19.6	199	169		140		110	81	51
	67	259	17.5	236	220		191	162	132	103	248	19.3	225	216		186		157	127	97
	62	239	17.1	238	238		226	196	167	138	228	19.0	226	226		220		190	161	131
	57	238	16.9	238	238		232	203	173	144	226	18.4	226	226		223		193	164	134
	72	280	17.7	206	177		147	117	88	58	266	19.6	202	172		143		113	83	53
8500	67	253	17.4	232	224		194	165	135	105	242	19.3	220	212		190		160	130	100
	62	234	17.1	233	233		227	197	168	138	223	18.9	222	222		218		188	159	129
	57	233	16.8	233	233		230	200	171	141	222	18.4	222	222		220		190	160	130
	72	274	17.7	209	179		150	120	90	60	261	19.5	206	175		145		115	85	55
9000	67	248	17.4	227	227		197	168	138	108	237	19.2	216	209		193		163	133	103
	62	229	17.1	228	228		228	198	168	139	218	18.9	217	217		217		186	156	126
	57	228	16.8	228	228		228	198	169	139	217	18.3	217	217		217		187	157	126

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

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

All Sensible Capacity

14	Unitary Products Group

262292-YTG-B-0107

TABLE 5: COOLING CAPACITIES FOR WR240 (CONTINUED)

	Air on Evaporator Coil							Temperature of Air on Condenser Coil
						115°F								125°F
		WB	Total	Total2		Sensible Capacity (MBH)*					Total	Total2		Sensible Capacity (MBH)*
	CFM		Cap.1	Input		Return Dry Bulb (°F)					Cap.1	Input		Return Dry Bulb (°F)
		(°F)	(MBH)	(kW)							(MBH)	(kW)
					90	85	80	75	70	65			90	85	80	75	70	65
		77	240	21.3	101	86	66	46	27	-	225	23.1	100	81	63	43	23	-
	5000	72	221	21.0	140	120	101	81	61	42	208	22.8	136	117	97	77	57	37
		67	202	20.7	179	155	135	115	96	76	192	22.5	174	151	131	111	92	72
		62	185	20.4	184	184	159	139	120	100	175	22.2	175	174	154	134	115	95
		77	253	21.4	126	97	74	51	28	-	238	23.3	126	93	70	47	23	-
	6000	72	233	21.1	158	135	112	89	66	43	220	23.0	154	131	108	85	62	38
		67	214	20.8	190	173	150	127	104	81	203	22.7	183	169	146	123	100	77
		62	195	20.5	194	194	177	154	131	108	185	22.3	184	184	172	149	126	103
		57	194	19.7	194	194	177	154	131	108	184	21.2	184	184	170	147	123	100
		77	267	21.6	151	108	81	55	29	-	250	23.4	151	105	77	50	24	-
	7000	72	246	21.3	176	150	124	97	71	44	232	23.1	172	146	119	93	66	39
		67	225	21.0	202	192	166	139	113	87	214	22.8	192	188	161	135	108	82
		62	206	20.7	205	205	196	169	143	116	195	22.5	193	194	190	163	137	110
		57	205	19.8	205	205	196	169	143	117	194	21.4	194	194	187	161	134	108
		77	280	21.8	176	119	89	59	29	-	263	23.6	176	117	84	54	24	-
	8000	72	258	21.5	195	165	135	105	76	46	244	23.3	190	160	130	100	70	41
		67	236	21.1	213	211	181	152	122	92	225	23.0	204	204	177	147	117	87
		62	216	20.8	215	215	214	184	154	124	205	22.7	204	204	205	178	148	118
		57	215	20.0	215	215	214	184	154	125	204	21.5	204	204	204	175	145	115
		72	252	21.4	198	168	138	108	78	48	238	23.2	194	164	134	103	73	43
	8500	67	231	21.1	209	201	185	155	125	95	220	22.9	198	189	181	151	120	90
		62	211	20.8	210	210	209	179	149	119	200	22.6	199	199	200	170	140	110
		57	210	19.9	210	210	210	180	149	119	199	21.5	199	199	199	169	139	108
		72	247	21.3	202	172	141	111	80	50	233	23.1	194	168	137	106	76	45
	9000	67	226	21.0	205	190	190	159	129	98	215	22.8	194	171	186	155	124	94
		62	206	20.7	205	205	205	175	144	114	195	22.5	194	194	194	163	132	101
		57	205	19.8	205	205	205	175	144	114	194	21.4	194	194	194	163	132	102

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

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

All Sensible Capacity

Unitary Products Group

15

																	262292-YTG-B-0107
TABLE 6: COOLING CAPACITIES FOR WR300
Air on Evaporator Coil								Temperature of Air on Condenser Coil
					75°F									85°F
	WB	Total	Total2		Sensible Capacity (MBH)*						Total	Total2		Sensible Capacity (MBH)*
CFM		Cap.1	Input		Return Dry Bulb (°F)						Cap.1	Input		Return Dry Bulb (°F)
	(°F)	(MBH)	(kW)								(MBH)	(kW)
				90	85		80	75	70	65			90	85		80		75	70	65
	77	331	17.7	186	162		137	113	88	64	322	20.0	168	144		119		95	70	46
6250	72	315	17.2	212	187		163	138	114	90	303	19.4	199	175		151		126	102	78
	67	299	16.7	237	213		188	164	140	115	284	18.8	231	206		182		158	133	109
	62	273	16.3	265	257		231	207	182	158	259	18.4	253	249		223		198	174	149
	77	380	20.7	217	189		160	131	102	73	371	23.3	197	168		139		110	82	53
7500	72	362	20.1	247	218		189	161	132	103	349	22.6	234	205		176		147	118	89
	67	343	19.5	277	248		219	190	161	133	327	21.9	271	242		213		184	155	126
	62	313	19.0	305	299		269	240	211	182	298	21.4	292	289		260		231	202	173
	57	305	18.5	305	305		288	259	230	201	292	20.9	292	292		279		250	221	192
	77	378	21.0	220	190		161	131	102	73	370	23.4	200	170		141		111	82	52
7750	72	360	20.3	249	220		191	161	132	102	348	22.7	237	207		178		148	119	89
	67	342	19.7	279	250		221	191	162	132	326	22.0	274	245		215		186	156	127
	62	312	19.2	304	301		270	241	212	182	298	21.5	292	290		263		233	204	174
	57	304	18.7	304	304		290	260	231	201	292	21.0	292	292		282		253	223	194
	77	376	21.2	222	192		162	132	102	72	370	23.6	203	172		142		112	82	52
8000	72	358	20.6	252	222		192	162	132	102	348	22.9	240	210		180		150	119	89
	67	340	19.9	282	252		222	192	162	132	326	22.1	278	248		217		187	157	127
	62	310	19.4	303	303		272	242	212	182	297	21.7	292	292		266		236	205	175
	57	303	18.9	303	303		291	261	231	201	292	21.1	292	292		285		255	225	195
	72	356	20.6	259	228		197	166	135	104	347	23.0	248	216		185		154	123	92
8650	67	338	20.0	290	259		228	197	166	135	326	22.3	284	255		224		193	162	131
	62	309	19.4	301	300		279	248	217	187	297	21.8	291	291		274		243	211	180
	57	301	18.9	301	301		295	264	233	202	291	21.3	291	291		288		257	226	195
	72	354	20.7	266	234		202	170	139	107	347	23.1	255	223		191		159	126	94
9300	67	336	20.1	299	265		234	202	170	138	325	22.4	291	263		230		198	166	134
	62	307	19.5	299	299		286	255	223	191	296	21.9	291	291		282		250	217	185
	57	299	19.0	299	299		299	267	235	203	291	21.4	291	291		291		259	227	194
					95°F									105°F
	77	313	22.2	150	125		101	77	53	28	297	24.4	139	117		92		68	44	20
6250	72	291	21.5	187	163		138	114	90	66	276	23.7	180	155		131		107	83	59
	67	268	20.8	200	200		176	151	127	103	256	23.1	220	194		170		146	122	98
	62	245	20.5	241	241		214	190	165	141	232	22.6	230	225		199		175	151	127
	77	362	25.8	177	148		119	90	61	32	343	28.3	166	137		109		80	51	22
7500	72	336	25.0	220	192		163	134	105	76	319	27.6	212	183		154		125	97	68
	67	310	24.2	264	235		206	178	149	120	295	26.8	257	229		200		171	142	113
	62	283	23.8	279	279		251	222	194	165	268	26.3	266	262		234		205	177	148
	57	279	23.2	279	279		270	241	213	184	266	25.8	266	266		256		227	198	170
	77	362	25.9	180	150		121	91	61	32	343	28.5	171	140		110		81	51	22
7750	72	337	25.1	224	195		165	136	106	76	319	27.7	216	186		156		127	97	68
	67	311	24.3	269	239		210	180	150	121	296	26.9	260	232		203		173	144	114
	62	283	23.9	280	280		255	226	196	166	268	26.4	266	264		238		208	179	149
	57	280	23.3	280	280		275	245	215	186	266	25.9	266	266		260		230	201	171
	77	363	26.0	183	153		123	92	62	31	343	28.6	176	142		112		82	51	21
8000	72	338	25.2	229	198		168	137	107	77	320	27.8	219	189		159		129	98	68
	67	312	24.3	274	243		213	183	152	122	296	27.1	263	236		206		175	145	115
	62	284	23.9	281	281		259	229	198	168	269	26.6	266	266		241		211	181	150
	57	281	23.4	281	281		279	248	218	188	266	26.1	266	266		264		233	203	173
	72	339	25.3	236	205		173	142	111	79	321	27.9	227	196		165		133	102	71
8650	67	313	24.5	278	252		220	189	157	126	297	27.1	266	245		213		182	151	119
	62	285	24.1	282	282		268	237	205	174	270	26.6	267	267		250		219	187	156
	57	282	23.6	282	282		281	249	218	187	267	26.1	267	267		266		235	203	172
	72	340	25.5	244	211		179	147	114	82	322	28.0	235	203		170		138	106	73
9300	67	314	24.7	283	260		227	195	163	130	298	27.2	268	253		221		189	156	124
	62	286	24.3	283	283		277	244	212	180	271	26.7	268	268		259		226	194	162
	57	283	23.8	283	283		283	250	218	185	268	26.2	268	268		268		236	203	171

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

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

All Sensible Capacity

16	Unitary Products Group

262292-YTG-B-0107

TABLE 6: COOLING CAPACITIES FOR WR300 (CONTINUED)

	Air on Evaporator Coil							Temperature of Air on Condenser Coil
						115°F								125°F
		WB	Total	Total2		Sensible Capacity (MBH)*					Total	Total2		Sensible Capacity (MBH)*
	CFM		Cap.1	Input		Return Dry Bulb (°F)					Cap.1	Input		Return Dry Bulb (°F)
		(°F)	(MBH)	(kW)							(MBH)	(kW)
					90	85	80	75	70	65			90	85	80	75	70	65
		77	281	26.6	128	108	84	60	36	12	265	28.8	122	99	75	51	27	-
	6250	72	262	26.0	172	148	124	100	76	52	248	28.2	165	141	117	93	69	45
		67	243	25.3	216	188	164	140	116	92	230	27.5	207	183	159	135	111	87
		62	220	24.8	218	209	185	161	137	113	208	26.9	207	193	170	146	122	98
		77	324	30.9	155	127	98	70	41	12	305	33.5	149	116	88	59	31	-
	7500	72	302	30.2	203	174	146	117	88	60	285	32.8	194	166	137	109	80	52
		67	280	29.4	250	222	193	164	136	107	265	32.0	239	215	186	158	129	101
		62	254	28.8	252	245	217	188	159	131	239	31.3	239	228	199	171	142	114
		57	252	28.4	252	252	241	213	184	155	239	30.9	239	239	227	198	170	141
		77	324	31.1	162	129	100	70	41	11	304	33.7	157	118	89	60	31	-
	7750	72	302	30.4	207	177	148	118	89	60	284	33.0	198	168	139	110	80	51
		67	280	29.6	251	225	196	166	137	108	264	32.3	238	218	189	160	130	101
		62	254	29.0	252	249	220	190	161	132	239	31.6	238	233	202	173	143	114
		57	252	28.5	252	252	245	215	186	157	238	31.1	238	238	230	201	171	142
		77	323	31.3	168	131	101	71	41	11	303	34.0	164	120	90	60	30	-
	8000	72	302	30.5	210	180	150	120	89	59	284	33.2	201	171	141	111	81	51
		67	280	29.8	252	229	199	168	138	108	264	32.5	238	222	191	161	131	101
		62	253	29.2	252	252	223	193	163	132	238	31.8	238	238	205	175	145	115
		57	252	28.7	252	252	248	218	188	158	238	31.4	238	238	233	203	173	143
		72	303	30.5	218	187	156	125	93	62	284	33.1	209	178	147	116	85	53
	8650	67	281	29.8	253	238	206	175	144	113	265	32.4	239	231	200	168	137	106
		62	254	29.2	253	253	232	201	169	138	239	31.7	239	239	214	182	151	120
		57	253	28.7	253	253	251	220	189	157	239	31.3	239	239	236	205	174	143
		72	304	30.5	226	194	162	129	97	65	285	33.0	218	185	153	121	89	56
	9300	67	282	29.8	254	247	214	182	150	117	265	32.3	239	239	208	176	143	111
		62	255	29.1	254	254	241	208	176	144	240	31.6	239	239	222	190	158	126
		57	254	28.7	254	254	254	221	189	157	239	31.2	239	239	239	207	175	143

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

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

All Sensible Capacity

Unitary Products Group

17