York SUNLINE MAGNADRY WR 180 User's Manual

York SUNLINE MAGNADRY WR 180 User's Manual
262292-YTG-C-0707
®
DESCRIPTION
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)
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 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
• Simplicity® 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
TABLE OF CONTENTS
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
PRODUCT NOMENCLATURE . . . . . . . . . . . . . . . . . . . . . . .3
Tbl. #
Pg. #
FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
9 COOLING CAPACITIES FOR WR300 (ALTERNATE
REHEAT MODE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
FACTORY-INSTALLED OPTIONS . . . . . . . . . . . . . . . . . . .8
10 ALTITUDE CORRECTION FACTORS . . . . . . . . . . . . . 24
FIELD-INSTALLED ACCESSORIES . . . . . . . . . . . . . . . . .10
11 WR180 BLOWER PERFORMANCE - 15 TON
STD. DRIVE (COOLING ONLY) DOWNFLOW . . . . . . 26
GUIDE SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . .53
12 WR180 BLOWER PERFORMANCE - 15 TON STD.
DRIVE (GAS HEAT) DOWNFLOW . . . . . . . . . . . . . . . 27
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
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 CONVENIENCE OUTLET . . . . . . . . 39
27 WR ELECTRICAL DATA - HIGH STATIC DRIVE MOTOR
W/O POWERED CONVENIENCE OUTLET . . . . . . . . 40
28 WR ELECTRICAL DATA - LOW STATIC DRIVE MOTOR
W/O POWERED CONVENIENCE OUTLET . . . . . . . . 41
29 WR ELECTRICAL DATA - STANDARD DRIVE MOTOR
WITH POWERED CONVENIENCE OUTLET . . . . . . . 42
30 WR ELECTRICAL DATA - HIGH STATIC DRIVE MOTOR
WITH POWERED CONVENIENCE OUTLET . . . . . . . 43
3 GAS HEAT RATINGS . . . . . . . . . . . . . . . . . . . . . . . . . 11
31 WR ELECTRICAL DATA - LOW STATIC DRIVE MOTOR
WITH POWERED CONVENIENCE OUTLET . . . . . . . 44
4 COOLING CAPACITIES FOR WR180 . . . . . . . . . . . . 12
32 PHYSICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
5 COOLING CAPACITIES FOR WR240 . . . . . . . . . . . . 14
33 SUPPLY FAN VFD WEIGHTS, IN LBS. . . . . . . . . . . . . 45
6 COOLING CAPACITIES FOR WR300 . . . . . . . . . . . . 16
34 UTILITIES ENTRY DATA . . . . . . . . . . . . . . . . . . . . . . . 46
7 COOLING CAPACITIES FOR WR180 (ALTERNATE
REHEAT MODE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
35 MINIMUM CLEARANCES . . . . . . . . . . . . . . . . . . . . . . 48
2 CAPACITY RATINGS - (ARI 360) . . . . . . . . . . . . . . . 11
36 FOUR AND SIX POINT LOADS . . . . . . . . . . . . . . . . . . 50
8 COOLING CAPACITIES FOR WR240 (ALTERNATE
REHEAT MODE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
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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)
These four digits will not be assigned until a quote is requested, or an order placed.
Product Identifier
SS Drain Pan
R = 90.1 w/Reheat
CPC Controller, DFS, APS
Johnson Controller, DFS, APS
Nominal Cooling Capacity
Honeywell Controller, DFS, APS
180 = 15 Ton
240 = 20 Ton
300 = 25 Ton
Novar Controller, DFS, APS
Simplicity IntelliComfort Controller
Simplicity IntelliComfort Controller w/ModLinc
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)
C00 = Cooling Only. No field installed
electric heat
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)
Gas Heat Options
Variable Air Volume, VFD and Manual Bypass with ModLINC (not available with factory installed BAS options)
Variable Air Volume, VFD (BAS ready)
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)
E18 = 18 KW
E36 = 36 KW
E54 = 54 KW
E72 = 72 KW
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
Airflow
Product Generation
A = Std. Drive
B = Std. Drive/Single Input Econo.
C = Std. Drive/Single Input Econo./Power Exhaust
(Downflow Only)
D = Std. Drive/Motorized Damper
E = Std. Drive/Motorized Damper/Barometric Relief
J = Std. Drive/Single Input Econo./Barometric Relief
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
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
1 = First Generation
2 = Second Generation
Additional Options
Standard Cabinet
Hinged Filter Door & Tool Free Access Cabinet
AA = None
AB = Phase Monitor
AC = Coil Guard
AD = Dirty Filter Switch
AE = Phase Monitor & Coil Guard
AF = Phase Monitor & Dirty Filter Switch
AG = Coil Guard & Dirty Filter Switch
AH = Phase Monitor, Coil Guard & Dirty Filter Switch
RC = Coil Guard & American Flag
TA = Technicoat Condenser Coil
TJ = Technicoat Evaporator Coil
TS = Technicoat Evaporator & Condenser Coils
BA = Hinged Filter Door & Tool Free Access Panels
BB = Phase Monitor, Hinged Filter Door & Tool Free
Access Panels
BC = Coil Guard, Hinged Filter Door & Tool Free
Access Panels
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
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.
Unitary Products Group
4 = Smoke Detector R.A.
5 = Pwr'd Conv. Outlet
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262292-YTG-C-0707
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 with or without power exhaust
•
BAS-ready economizer with or without power exhaust
•
Motorized outdoor air damper
•
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.
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
4
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.
Unitary Products Group
262292-YTG-C-0707
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.
• 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.
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
Unitary Products Group
“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.
dehumidification at "HUM".
5
262292-YTG-C-0707
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
MODE
SELECTION
JUMPER
HUM
DEHUMIDISTAT
HARNESS
CONNECTION
FIGURE 2: REHEAT CONTROL BOARD
6
Unitary Products Group
262292-YTG-C-0707
UCB
RHB
UNIT CONTROL
BOARD
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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262292-YTG-C-0707
FACTORY-INSTALLED OPTIONS
• SINGLE INPUT ELECTRONIC ENTHALPY
ECONOMIZERS - Includes a slide-in / plug-in damper
assembly with fully modulating spring-return motor
actuator capable of introducing up to 100% outdoor air
with nominal 1% leakage type dampers.
The enthalpy system contains one sensor that monitors
the outdoor air and determines when the air is cool
enough and dry enough to provide free cooling.
The rainhood is painted to match the basic unit and must
be field-assembled before installing.
• 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% leakage 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 endswitch for optional power exhaust control.
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-cooling operation. (Field-installed humidity sensors for either
outdoor air or outdoor & return air streams are available for
single enthalpy and differential enthalpy configurations,
respectively).
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.
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 2position, spring return motor actuator which opens to a preset 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.
• 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
8
air panel. With horizontal ductwork, the accessory should
be mounted on the return air duct.
• PHENOLIC COATED EVAPORATOR, REHEAT, AND
CONDENSER COILS - Special coating process that utilizes
Technicoat 10-1" processes. Coating is applied by total
immersion of the complete coil for maximum protection.
• ELECTRIC HEATERS wired for single point power
supply. These nickel chromium heater elements are
provided with limit and automatic reset capability to
prevent operation at excessive temperatures.
• VARIABLE AIR VOLUME (VAV) - A factory-installed
variable frequency drive (VFD), mounted in the Blower
Access compartment, is used to control the speed of the
indoor blower motor in order to maintain a constant static
pressure in the supply duct. A pressure transducer and
VAV control board are mounted inside the control box.
The drive comes completely wired and pre-programmed
from the factory.
An optional, factory-installed manual bypass switch available with factory-installed VFD can be found in the Blower
Motor Access compartment. The switch can be used to
either route power to the VFD for modulating control of the
blower motor, to bypass the drive and operate the motor
at full speed, or to power the drive (and not the motor) for
diagnostic purposes.
Due to space limitations, VAV is not available with any of
the factory-installed BAS options described below, but is
available with ‘BAS-ready’ models. Terminal blocks are
provided in the control box for field wiring of the customerinstalled BAS.
A ‘VFD-ready’ option provides the provisions for a customer-installed drive. The unit comes with a mounting
bracket installed in the Blower Access compartment which
may accommodate other vendor’s drives depending on
their size. In order to utilize the unit’s mounting bracket, the
maximum recommended drive dimensions are as follows:
For 5-hp motor applications ........................13” H x 6” W x 7” D
For 7.5 thru 15-hp motor applications .........13” H x 8” W x 8” D
If the drive will not fit in the allotted space, then it will have to
be mounted elsewhere; either within the building on a perpendicular wall which is not subjected to excessive temperature, vibration, humidity, dust, corrosive gas, explosive gas,
etc., or within an appropriate enclosure rated for outside
installation to safeguard against moisture, dust and excessive heat.
A terminal block located in the control box is provided for
field connection of the VFD controls.
• HOT GAS BYPASS - To allow for low cooling load operation, a direct-acting pressure-modulating bypass control
valve installed on the system #1 discharge line is used to
divert high temperature, high pressure refrigerant around
the TXV in order to maintain a desired minimum evaporator pressure. HGBP is standard on all units with VAV and
optional with CV units.
Unitary Products Group
262292-YTG-C-0707
• 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.
• CONVENIENCE OUTLET - This 110 volt outlet can be
“powered” by the unit with a stepdown transformer or you
may order the unit with a “non-powered” convenience
outlet that can be wired in the field.
• DISCONNECT SWITCH - For gas heat units and cooling
units with electric heat, a HACR breaker sized to the unit
is provided. For cooling only units, a switch sized to the
largest electric heat available for the particular unit is
provided. Factory installed option only.
• DOUBLE WALL CONSTRUCTION - Optional double wall
construction is available to provide smooth inner surfaces
for easy and effective cleaning to reduce risk of dirt and
bacterial accumulation. Fiberglass insulation is
sandwiched between heavy gauge steel sheets to form a
durable, rigid casing to withstand higher working
pressures and impact forces. The heavy-duty construction
provides excellent acoustic and thermal insulation and
eliminates erosion of insulation material and
contamination of the air stream.
• BAS - Building Automation System Controls
(available on two-system cooling product only).
Simplicity® INTELLI-Comfort™ CONTROL - The York®
Simplicity® INTELLI-Comfort™ control is factory installed. It
includes a supply air sensor, a return air sensor, and an outside air sensor. There are provisions for a field installed dirty
filter indicator switch, an air-proving switch, an Outside Air
Humidity sensor, a Return Air Humidity sensor, an Inside IAQ
sensor, and an Outside Air IAQ sensor. 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-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 economizerloading 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
Unitary Products Group
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-ofphase 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)
• 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/”TOOL FREE” BLOWER AND
ACCESS PANELS (not hinged) - This option allows for
easy access and maintenance.
9
262292-YTG-C-0707
NOTE: Knobs are shipped separately within the unit to
prevent shipping damage. These must be field
installed for tool free operation.
• 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.
FIELD-INSTALLED ACCESSORIES
• SINGLE INPUT ELECTRONIC ENTHALPY
ECONOMIZERS - Includes a slide-in / plug-in damper
assembly with fully modulating spring-return motor
actuator capable of introducing up to 100% outdoor air
with nominal 1% leakage type dampers.
The enthalpy system contains one sensor that monitors
the outdoor air and determines when the air is cool
enough and dry enough to provide free cooling.
The rainhood is painted to match the basic unit and must
be field-assembled before installing.
• MOTORIZED OUTDOOR AIR INTAKE DAMPER Includes a slide-in / plug-in damper assembly with a 2position, spring return motor actuator which opens to
some pre-set position whenever the supply air blower is
operating and will drive fully closed when the blower unit
shuts down.
The rain hood is painted to match the basic unit and must
be field-assembled before installing.
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.
10
• 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-ofphase condition.
Unitary Products Group
262292-YTG-C-0707
TABLE 1: SOUND POWER RATING1
ESP
UNIT
SIZE
SOUND POWER (db 10-12 Watts)
BLOWER
Octave Band Centerline Frequency (Hz)
CFM
IWG
RPM
BHP
63
125
250
500
1,000
2,000
4,000
8,000
SWL
dB(A)
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
TABLE 3: GAS HEAT RATINGS
MBH
EER2
IPLV3
MODEL
MBH INPUT
MBH OUTPUT
WR180N/S24
300
240
WR180C/E00
180
11.9
12.7
WR180N/S32
400
320
WR240C/E00
240
11.0
11.3
WR240N/S24
300
240
WR300C/E00
300
10.0
10.6
WR240N/S32
400
320
WR300N/S24
300
240
WR300N/S32
400
320
MODEL
COOLING ONLY
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.
Unitary Products Group
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.
11
262292-YTG-C-0707
TABLE 4: COOLING CAPACITIES FOR WR180
Temperature of Air on Condenser Coil
Air on Evaporator Coil
CFM
3750
4500
5250
6000
6750
7500
3750
4500
5250
6000
6750
7500
WB
(°F)
75°F
Total
Cap.1 Input
(MBH) (kW)
85°F
Total2
Sensible Capacity (MBH)*
Return Dry Bulb (°F)
Total2
Total
Cap.1 Input
(MBH) (kW)
Sensible Capacity (MBH)*
Return Dry Bulb (°F)
90
85
80
75
70
65
90
85
80
75
70
65
77
72
67
62
77
72
67
62
57
77
72
67
62
57
77
72
67
62
57
72
67
62
57
72
67
62
57
217
200
184
165
227
210
192
172
171
237
219
201
180
178
247
228
209
187
186
236
217
194
193
245
224
201
200
10.8
10.5
10.2
9.9
11.0
10.6
10.3
10.0
10.0
11.1
10.8
10.4
10.1
10.1
11.2
10.9
10.5
10.2
10.2
10.9
10.6
10.3
10.2
10.9
10.6
10.3
10.3
74
115
156
163
100
130
161
171
171
127
146
165
178
178
153
161
170
186
186
176
184
193
193
191
199
199
200
45
72
99
117
48
78
108
129
135
52
85
118
141
148
56
92
128
153
160
99
138
162
166
106
148
171
171
30
57
84
103
31
61
91
112
118
32
65
98
121
127
32
69
105
130
137
73
112
136
140
77
120
142
143
16
43
70
88
14
44
74
95
100
11
45
78
101
107
9
45
82
107
114
47
86
110
114
49
91
114
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
11.1
12.1
11.8
11.5
11.3
11.2
12.2
11.9
11.6
11.4
11.3
11.9
11.7
11.4
11.3
12.0
11.7
11.4
11.4
80
114
148
159
99
128
158
166
166
117
143
168
173
173
136
157
178
180
180
171
185
186
186
184
192
192
192
28
55
82
101
29
59
88
109
115
30
62
94
118
124
31
66
101
126
133
70
108
131
135
74
114
137
137
14
40
67
86
12
41
71
92
97
10
42
74
98
104
8
43
78
103
110
44
82
106
109
46
87
109
109
203
186
170
155
211
194
177
161
161
219
202
184
168
168
228
209
191
174
174
216
197
179
179
222
203
185
185
12.8
12.6
12.4
12.1
12.9
12.7
12.5
12.3
12.2
13.0
12.8
12.6
12.4
12.3
13.2
13.0
12.7
12.5
12.4
13.0
12.8
12.5
12.5
13.0
12.8
12.5
12.5
87
113
139
155
97
126
155
161
161
108
139
171
168
168
119
153
186
174
174
165
186
179
179
177
185
185
185
42
68
94
114
45
74
103
124
129
48
79
111
135
140
51
85
119
145
151
91
127
151
154
97
136
158
158
27
53
79
99
27
56
85
107
112
28
59
91
115
120
29
63
96
122
128
66
103
127
130
70
109
131
131
12
38
64
84
10
39
68
89
95
8
39
71
95
100
6
40
74
100
106
42
78
102
105
43
82
104
104
195
179
164
151
202
186
170
157
156
209
192
175
162
162
216
199
181
168
167
204
187
172
172
210
192
177
177
14.3
14.1
13.9
13.7
14.4
14.2
14.0
13.8
13.7
14.5
14.3
14.1
13.8
13.8
14.6
14.4
14.2
13.9
13.9
14.4
14.2
13.9
13.9
14.4
14.2
13.9
13.9
77
111
144
148
95
124
153
155
156
113
136
162
162
162
131
149
167
167
167
160
172
172
172
172
177
177
177
73
58
99
85
126
111
152
130
81
64
111
93
140
123
162
144
166
150
90
70
123
102
155
135
171
158
173
164
99
76
134
111
169
146
180
172
180
178
145
120
181
158
186
182
186
185
157
129
192
170
192
192
192
192
105°F
69
53
96
80
122
107
149
125
77
59
106
88
135
117
155
137
156
141
84
64
116
96
148
127
161
149
162
154
92
69
126
104
161
138
167
162
167
166
136
111
169
148
172
169
172
172
145
119
177
158
177
177
177
177
43
70
96
116
47
76
106
127
132
50
82
115
138
144
53
88
124
149
155
95
133
157
160
101
142
164
165
77
72
67
62
77
72
67
62
57
77
72
67
62
57
77
72
67
62
57
72
67
62
57
72
67
62
57
71
59
100
86
128
113
153
132
83
66
113
96
143
126
164
147
171
152
95
72
126
105
159
139
175
161
178
168
107
79
138
115
170
151
186
176
186
183
150
125
187
164
193
188
193
191
163
134
199
177
199
199
200
200
95°F
72
57
98
83
124
109
152
129
80
62
109
91
137
120
159
142
161
147
88
68
119
99
151
131
167
155
168
160
96
74
130
108
164
141
174
167
174
173
140
116
174
152
179
176
179
179
151
124
185
163
185
185
185
185
38
64
91
109
41
70
99
119
123
44
75
107
129
134
47
81
115
139
144
86
123
145
147
92
131
150
150
22
49
75
94
23
52
81
101
105
23
55
87
109
113
24
58
92
116
121
62
99
120
122
65
105
124
123
6
33
60
78
5
34
63
83
87
3
35
66
88
93
1
35
70
94
98
37
74
95
98
39
78
97
97
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-C-0707
TABLE 4: COOLING CAPACITIES FOR WR180 (CONTINUED)
Temperature of Air on Condenser Coil
Air on Evaporator Coil
CFM
3750
4500
5250
6000
6750
7500
WB
(°F)
77
72
67
62
77
72
67
62
57
77
72
67
62
57
77
72
67
62
57
72
67
62
57
72
67
62
57
115°F
Total
Cap.1 Input
(MBH) (kW)
187
172
157
147
193
177
162
152
151
198
183
167
156
156
204
188
172
161
160
193
176
165
165
198
181
169
169
15.8
15.6
15.4
15.2
15.9
15.7
15.5
15.2
15.2
15.9
15.7
15.5
15.3
15.2
16.0
15.8
15.6
15.4
15.3
15.8
15.6
15.4
15.3
15.8
15.6
15.3
15.2
125°F
Total2
Sensible Capacity (MBH)*
Return Dry Bulb (°F)
Total2
90
85
80
75
70
65
73
110
146
147
92
122
151
151
151
111
133
156
156
156
130
145
160
160
160
156
165
165
165
167
169
169
169
66
93
120
147
74
103
133
151
151
81
113
145
156
156
88
122
157
160
160
131
163
165
165
140
169
169
169
50
77
104
121
55
84
114
133
136
60
92
124
144
148
65
99
134
156
160
106
144
163
164
113
153
169
169
34
61
88
104
36
66
95
114
117
39
71
103
124
127
42
77
111
133
137
82
119
138
140
87
126
143
143
17
44
71
88
18
47
77
96
99
18
51
83
103
106
19
54
88
110
114
57
94
113
115
60
100
116
116
28
55
72
29
58
77
80
30
62
82
86
31
66
87
91
32
69
89
90
34
73
90
89
Total
Cap.1 Input
(MBH) (kW)
179
165
151
143
184
169
155
147
146
188
173
159
151
150
193
177
162
154
154
182
166
158
157
186
170
162
161
17.3
17.1
16.9
16.7
17.3
17.1
16.9
16.7
16.6
17.4
17.2
17.0
16.8
16.7
17.4
17.2
17.0
16.8
16.7
17.2
17.0
16.8
16.7
17.1
16.9
16.7
16.6
Sensible Capacity (MBH)*
Return Dry Bulb (°F)
90
85
80
75
70
65
74
108
142
145
92
119
146
147
146
111
130
150
149
150
130
142
153
153
154
151
157
157
157
161
161
161
161
60
91
118
143
70
100
130
146
146
80
109
142
149
150
90
118
147
153
154
127
154
157
157
135
161
161
161
47
74
101
117
51
81
111
128
130
56
88
121
139
141
60
95
131
151
153
102
139
156
157
108
148
161
161
30
57
84
100
32
62
92
109
111
35
67
100
118
120
37
72
108
127
130
77
115
131
133
82
122
135
136
13
40
67
83
13
43
73
90
92
14
46
79
97
99
14
49
84
104
107
52
90
107
107
55
95
109
108
23
50
66
24
54
71
73
25
58
76
78
26
61
81
84
28
65
82
83
29
69
82
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-C-0707
TABLE 5: COOLING CAPACITIES FOR WR240
Temperature of Air on Condenser Coil
Air on Evaporator Coil
CFM
5000
6000
7000
8000
8500
9000
5000
6000
7000
8000
8500
9000
WB
(°F)
75°F
Total
Cap.1 Input
(MBH) (kW)
85°F
Total2
Sensible Capacity (MBH)*
Return Dry Bulb (°F)
Total2
Total
Cap.1 Input
(MBH) (kW)
Sensible Capacity (MBH)*
Return Dry Bulb (°F)
90
85
80
75
70
65
90
85
80
75
70
65
77
72
67
62
77
72
67
62
57
77
72
67
62
57
77
72
67
62
57
72
67
62
57
72
67
62
57
287
263
238
219
304
278
252
232
229
320
293
265
244
241
337
308
279
257
254
302
274
252
249
296
268
247
244
15.1
14.6
14.2
13.8
15.2
14.8
14.3
14.0
13.8
15.4
14.9
14.4
14.1
13.9
15.5
15.1
14.6
14.2
14.1
15.0
14.5
14.2
14.0
14.9
14.4
14.1
13.9
117
152
187
215
133
171
210
228
229
149
190
233
241
241
165
210
254
254
254
213
249
249
249
216
244
244
244
62
96
131
157
67
106
144
173
183
73
115
157
189
200
78
124
170
205
217
126
173
210
216
128
176
215
215
43
78
113
139
45
84
122
151
161
47
90
132
164
175
50
96
142
176
188
97
144
181
187
99
147
186
186
25
59
94
120
23
62
100
129
139
22
64
107
138
149
21
67
113
148
160
69
115
152
158
70
118
157
157
278
254
230
212
294
269
243
224
222
310
283
256
236
234
325
297
269
248
246
291
264
243
241
285
258
238
236
16.4
16.0
15.6
15.3
16.5
16.1
15.7
15.4
15.2
16.7
16.3
15.9
15.5
15.3
16.8
16.4
16.0
15.7
15.5
16.4
16.0
15.6
15.4
16.3
15.9
15.6
15.3
112
150
187
210
130
169
207
222
222
148
187
226
234
234
167
206
246
246
246
209
241
241
241
212
236
236
236
39
74
108
134
41
79
118
147
154
43
85
127
159
167
45
91
137
172
181
93
140
174
179
95
142
177
177
20
55
89
115
19
57
95
124
132
17
59
102
134
142
16
62
108
143
152
64
110
145
150
65
113
148
148
270
246
222
206
285
259
234
217
216
299
273
247
228
227
314
286
259
239
238
280
253
234
233
274
248
229
228
17.6
17.3
17.0
16.7
17.8
17.5
17.2
16.8
16.6
17.9
17.6
17.3
17.0
16.7
18.1
17.8
17.5
17.1
16.9
17.7
17.4
17.1
16.8
17.7
17.4
17.1
16.8
105
147
188
205
127
166
204
216
216
149
184
220
227
227
171
203
236
238
238
206
232
233
233
209
227
228
228
54
89
123
149
59
97
136
165
170
64
106
149
181
186
69
115
162
196
203
117
165
197
200
120
168
198
198
35
69
104
130
36
75
113
142
147
38
80
123
155
160
40
86
132
167
173
88
135
168
171
90
138
168
169
15
50
84
111
14
52
91
120
125
12
54
97
129
134
10
56
103
138
144
58
105
138
141
60
108
139
139
255
234
212
195
269
246
224
206
205
283
259
236
217
216
297
272
248
228
226
266
242
223
222
261
237
218
217
19.4
19.1
18.8
18.5
19.6
19.3
19.0
18.7
18.1
19.8
19.5
19.2
18.8
18.3
19.9
19.6
19.3
19.0
18.4
19.6
19.3
18.9
18.4
19.5
19.2
18.9
18.3
103
143
183
192
127
162
197
204
205
150
180
211
216
216
173
199
225
226
226
202
220
222
222
206
216
217
217
96
77
131
112
165
146
198
172
108
85
146
124
185
162
214
191
221
199
120
94
162
136
204
179
230
210
234
219
131
102
178
149
224
195
246
230
246
239
180
151
227
198
241
233
241
237
183
153
231
201
236
236
236
236
105°F
89
70
124
104
158
139
190
164
101
78
139
116
177
155
202
183
205
185
112
86
154
128
197
170
214
201
216
204
123
94
169
140
216
186
226
220
226
223
172
143
212
190
222
218
222
220
175
145
209
193
217
217
217
217
58
93
127
153
63
102
140
169
177
68
111
153
185
193
74
120
166
201
210
122
169
204
208
124
172
207
207
77
72
67
62
77
72
67
62
57
77
72
67
62
57
77
72
67
62
57
72
67
62
57
72
67
62
57
99
80
134
115
168
150
198
176
111
89
150
128
188
166
217
195
227
205
123
98
165
140
207
182
235
214
240
225
135
107
181
153
227
199
254
233
254
245
184
155
230
202
249
239
249
245
187
157
224
205
244
244
244
244
95°F
93
73
127
108
162
143
197
169
104
82
143
120
181
159
210
188
216
193
116
90
158
132
201
175
224
207
227
212
128
98
174
145
220
191
238
226
238
232
177
147
224
194
233
227
233
230
179
150
227
197
228
228
228
228
50
85
119
144
55
93
132
160
162
59
102
144
175
178
64
110
157
190
193
113
160
188
190
115
163
186
187
31
65
100
125
32
70
109
137
139
33
76
118
149
152
34
81
127
161
164
83
130
159
160
85
133
156
157
11
46
80
105
9
48
86
114
117
7
49
92
123
125
5
51
97
131
134
53
100
129
130
55
103
126
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-C-0707
TABLE 5: COOLING CAPACITIES FOR WR240 (CONTINUED)
Temperature of Air on Condenser Coil
Air on Evaporator Coil
CFM
5000
6000
7000
8000
8500
9000
WB
(°F)
77
72
67
62
77
72
67
62
57
77
72
67
62
57
77
72
67
62
57
72
67
62
57
72
67
62
57
115°F
Total Total2
Cap.1 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
125°F
Sensible Capacity (MBH)*
Return Dry Bulb (°F)
90
85
80
75
70
65
101
140
179
184
126
158
190
194
194
151
176
202
205
205
176
195
213
215
215
198
209
210
210
202
205
205
205
86
120
155
184
97
135
173
194
194
108
150
192
205
205
119
165
211
215
215
168
201
210
210
172
190
205
205
66
101
135
159
74
112
150
177
177
81
124
166
196
196
89
135
181
214
214
138
185
209
210
141
190
205
205
46
81
115
139
51
89
127
154
154
55
97
139
169
169
59
105
152
184
184
108
155
179
180
111
159
175
175
27
61
96
120
28
66
104
131
131
29
71
113
143
143
29
76
122
154
154
78
125
149
149
80
129
144
144
42
76
100
43
81
108
108
44
87
116
117
46
92
124
125
48
95
119
119
50
98
114
114
Total Total2
Cap.1 Input
(MBH) (kW)
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
Sensible Capacity (MBH)*
Return Dry Bulb (°F)
90
85
80
75
70
65
100
136
174
175
126
154
183
184
184
151
172
192
193
194
176
190
204
204
204
194
198
199
199
194
194
194
194
81
117
151
174
93
131
169
184
184
105
146
188
194
194
117
160
204
204
204
164
189
199
199
168
171
194
194
63
97
131
154
70
108
146
172
170
77
119
161
190
187
84
130
177
205
204
134
181
200
199
137
186
194
194
43
77
111
134
47
85
123
149
147
50
93
135
163
161
54
100
147
178
175
103
151
170
169
106
155
163
163
23
57
92
115
23
62
100
126
123
24
66
108
137
134
24
70
117
148
145
73
120
140
139
76
124
132
132
37
72
95
38
77
103
100
39
82
110
108
41
87
118
115
43
90
110
108
45
94
101
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-C-0707
TABLE 6: COOLING CAPACITIES FOR WR300
Temperature of Air on Condenser Coil
Air on Evaporator Coil
CFM
6250
7500
7750
8000
8650
9300
6250
7500
7750
8000
8650
9300
WB
(°F)
75°F
Total
Cap.1 Input
(MBH) (kW)
85°F
Total2
Sensible Capacity (MBH)*
Return Dry Bulb (°F)
Total2
Total
Cap.1 Input
(MBH) (kW)
Sensible Capacity (MBH)*
Return Dry Bulb (°F)
90
85
80
75
70
65
90
85
80
75
70
65
77
72
67
62
77
72
67
62
57
77
72
67
62
57
77
72
67
62
57
72
67
62
57
72
67
62
57
331
315
299
273
380
362
343
313
305
378
360
342
312
304
376
358
340
310
303
356
338
309
301
354
336
307
299
17.7
17.2
16.7
16.3
20.7
20.1
19.5
19.0
18.5
21.0
20.3
19.7
19.2
18.7
21.2
20.6
19.9
19.4
18.9
20.6
20.0
19.4
18.9
20.7
20.1
19.5
19.0
186
212
237
265
217
247
277
305
305
220
249
279
304
304
222
252
282
303
303
259
290
301
301
266
299
299
299
113
138
164
207
131
161
190
240
259
131
161
191
241
260
132
162
192
242
261
166
197
248
264
170
202
255
267
88
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
64
90
115
158
73
103
133
182
201
73
102
132
182
201
72
102
132
182
201
104
135
187
202
107
138
191
203
322
303
284
259
371
349
327
298
292
370
348
326
298
292
370
348
326
297
292
347
326
297
291
347
325
296
291
20.0
19.4
18.8
18.4
23.3
22.6
21.9
21.4
20.9
23.4
22.7
22.0
21.5
21.0
23.6
22.9
22.1
21.7
21.1
23.0
22.3
21.8
21.3
23.1
22.4
21.9
21.4
168
199
231
253
197
234
271
292
292
200
237
274
292
292
203
240
278
292
292
248
284
291
291
255
291
291
291
70
102
133
174
82
118
155
202
221
82
119
156
204
223
82
119
157
205
225
123
162
211
226
126
166
217
227
46
78
109
149
53
89
126
173
192
52
89
127
174
194
52
89
127
175
195
92
131
180
195
94
134
185
194
313
291
268
245
362
336
310
283
279
362
337
311
283
280
363
338
312
284
281
339
313
285
282
340
314
286
283
22.2
21.5
20.8
20.5
25.8
25.0
24.2
23.8
23.2
25.9
25.1
24.3
23.9
23.3
26.0
25.2
24.3
23.9
23.4
25.3
24.5
24.1
23.6
25.5
24.7
24.3
23.8
150
187
200
241
177
220
264
279
279
180
224
269
280
280
183
229
274
281
281
236
278
282
282
244
283
283
283
77
114
151
190
90
134
178
222
241
91
136
180
226
245
92
137
183
229
248
142
189
237
249
147
195
244
250
53
90
127
165
61
105
149
194
213
61
106
150
196
215
62
107
152
198
218
111
157
205
218
114
163
212
218
28
66
103
141
32
76
120
165
184
32
76
121
166
186
31
77
122
168
188
79
126
174
187
82
130
180
185
297
276
256
232
343
319
295
268
266
343
319
296
268
266
343
320
296
269
266
321
297
270
267
322
298
271
268
24.4
23.7
23.1
22.6
28.3
27.6
26.8
26.3
25.8
28.5
27.7
26.9
26.4
25.9
28.6
27.8
27.1
26.6
26.1
27.9
27.1
26.6
26.1
28.0
27.2
26.7
26.2
139
180
220
230
166
212
257
266
266
171
216
260
266
266
176
219
263
266
266
227
266
267
267
235
268
268
268
144
119
175
151
206
182
249
223
168
139
205
176
242
213
289
260
292
279
170
141
207
178
245
215
290
263
292
282
172
142
210
180
248
217
292
266
292
285
216
185
255
224
291
274
291
288
223
191
263
230
291
282
291
291
105°F
117
92
155
131
194
170
225
199
137
109
183
154
229
200
262
234
266
256
140
110
186
156
232
203
264
238
266
260
142
112
189
159
236
206
266
241
266
264
196
165
245
213
267
250
267
266
203
170
253
221
268
259
268
268
95
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
77
72
67
62
77
72
67
62
57
77
72
67
62
57
77
72
67
62
57
72
67
62
57
72
67
62
57
162
137
187
163
213
188
257
231
189
160
218
189
248
219
299
269
305
288
190
161
220
191
250
221
301
270
304
290
192
162
222
192
252
222
303
272
303
291
228
197
259
228
300
279
301
295
234
202
265
234
299
286
299
299
95°F
125
101
163
138
200
176
241
214
148
119
192
163
235
206
279
251
279
270
150
121
195
165
239
210
280
255
280
275
153
123
198
168
243
213
281
259
281
279
205
173
252
220
282
268
282
281
211
179
260
227
283
277
283
283
68
107
146
175
80
125
171
205
227
81
127
173
208
230
82
129
175
211
233
133
182
219
235
138
189
226
236
44
83
122
151
51
97
142
177
198
51
97
144
179
201
51
98
145
181
203
102
151
187
203
106
156
194
203
20
59
98
127
22
68
113
148
170
22
68
114
149
171
21
68
115
150
173
71
119
156
172
73
124
162
171
1. The capacities are gross ratings. For net capacity, deduct air blower motor, MBh = 3.415 x kW. Refer to the appropriate Blower
Performance table for the kW of the supply air blower motor.
2. These ratings include the condenser fan motors (total 1 kW) and the compressor motors but not the supply air blower motor.
All Sensible Capacity
16
Unitary Products Group
262292-YTG-C-0707
TABLE 6: COOLING CAPACITIES FOR WR300 (CONTINUED)
Temperature of Air on Condenser Coil
Air on Evaporator Coil
115°F
CFM
6250
7500
7750
8000
8650
9300
WB
(°F)
77
72
67
62
77
72
67
62
57
77
72
67
62
57
77
72
67
62
57
72
67
62
57
72
67
62
57
Total Total
Cap.1 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
125°F
Total2
Sensible Capacity (MBH)*
Return Dry Bulb (°F)
2
90
85
80
75
70
65
128
172
216
218
155
203
250
252
252
162
207
251
252
252
168
210
252
252
252
218
253
253
253
226
254
254
254
108
148
188
209
127
174
222
245
252
129
177
225
249
252
131
180
229
252
252
187
238
253
253
194
247
254
254
84
124
164
185
98
146
193
217
241
100
148
196
220
245
101
150
199
223
248
156
206
232
251
162
214
241
254
60
100
140
161
70
117
164
188
213
70
118
166
190
215
71
120
168
193
218
125
175
201
220
129
182
208
221
36
76
116
137
41
88
136
159
184
41
89
137
161
186
41
89
138
163
188
93
144
169
189
97
150
176
189
12
52
92
113
12
60
107
131
155
11
60
108
132
157
11
59
108
132
158
62
113
138
157
65
117
144
157
Total
Cap.1 Input
(MBH) (kW)
265
248
230
208
305
285
265
239
239
304
284
264
239
238
303
284
264
238
238
284
265
239
239
285
265
240
239
28.8
28.2
27.5
26.9
33.5
32.8
32.0
31.3
30.9
33.7
33.0
32.3
31.6
31.1
34.0
33.2
32.5
31.8
31.4
33.1
32.4
31.7
31.3
33.0
32.3
31.6
31.2
Sensible Capacity (MBH)*
Return Dry Bulb (°F)
90
85
80
75
70
65
122
165
207
207
149
194
239
239
239
157
198
238
238
238
164
201
238
238
238
209
239
239
239
218
239
239
239
99
141
183
193
116
166
215
228
239
118
168
218
233
238
120
171
222
238
238
178
231
239
239
185
239
239
239
75
117
159
170
88
137
186
199
227
89
139
189
202
230
90
141
191
205
233
147
200
214
236
153
208
222
239
51
93
135
146
59
109
158
171
198
60
110
160
173
201
60
111
161
175
203
116
168
182
205
121
176
190
207
27
69
111
122
31
80
129
142
170
31
80
130
143
171
30
81
131
145
173
85
137
151
174
89
143
158
175
45
87
98
52
101
114
141
51
101
114
142
51
101
115
143
53
106
120
143
56
111
126
143
1. The capacities are gross ratings. For net capacity, deduct air blower motor, MBh = 3.415 x kW. Refer to the appropriate Blower
Performance table for the kW of the supply air blower motor.
2. These ratings include the condenser fan motors (total 1 kW) and the compressor motors but not the supply air blower motor.
All Sensible Capacity
Unitary Products Group
17
262292-YTG-C-0707
TABLE 7: COOLING CAPACITIES FOR WR180 (ALTERNATE REHEAT MODE)
Air on Evaporator Coil
CFM
4500
5250
6000
6750
7500
4500
5250
6000
6750
7500
4500
5250
6000
6750
7500
67
62
57
67
62
57
67
62
57
67
62
57
67
62
57
Total
Cap.1
(MBH)
88
79
70
90
81
72
92
82
73
95
85
75
98
88
78
Total2
Input
(kW)
10.6
10.1
9.9
10.7
10.2
10.0
10.8
10.3
10.0
10.8
10.2
10.0
10.7
10.2
10.0
67
62
57
67
62
57
67
62
57
67
62
57
67
62
57
71
64
61
74
68
64
78
71
67
79
72
68
81
73
70
11.8
11.4
11.3
11.8
11.5
11.4
11.9
11.5
11.4
11.9
11.5
11.4
11.9
11.5
11.4
67
62
57
67
62
57
67
62
57
67
62
57
67
62
57
60
55
53
63
58
56
66
60
59
66
61
59
66
61
59
13.3
12.8
12.8
13.3
12.9
12.8
13.4
12.9
12.9
13.4
12.9
12.9
13.4
12.9
12.9
WB
(°F)
Temperature of Air on Condenser Coil
75°F
Sensible Capacity (MBH)*
Total2
Total
Return Dry Bulb (°F)
Cap.1
Input
(kW)
(MBH)
90 85 80 75 70 65
23 21 19 16 14 11
80
11.2
44 42 39 37 35 32
72
10.8
48 46 44 41 39 36
66
10.6
32 29 25 22 19 15
82
11.3
59 56 53 49 46 43
74
10.8
61 59 58 55 51 48
68
10.7
40 36 32 28 23 19
85
11.3
73 70 66 61 57 53
76
10.9
73 73 72 68 64 60
70
10.7
49 44 39 33 28 23
87
11.3
75 74 72 66 61 56
78
10.9
75 75 75 70 65 59
72
10.7
58 52 46 39 33 27
90
11.3
78 78 78 71 65 59
81
10.9
78 78 78 72 65 59
74
10.7
95°F
12 11 10
8
7
6
65
12.5
27 25 24 23 22 20
60
12.1
30 29 27 26 25 24
57
12.1
21 19 16 14 12 10
69
12.6
46 44 41 39 37 35
63
12.2
48 48 47 45 43 40
60
12.1
29 26 23 20 17 14
72
12.6
65 62 59 56 52 49
66
12.2
67 67 67 63 60 57
63
12.1
36 32 29 25 21 17
73
12.6
67 66 64 60 57 53
66
12.2
68 68 68 64 60 57
64
12.1
43 39 34 30 25 21
74
12.6
70 70 70 65 61 56
67
12.2
70 70 70 65 61 56
64
12.1
115°F
5
4
4
3
3
2
54
14.0
15 14 14 13 13 12
50
13.5
16 15 15 14 14 13
50
13.5
12 11
9
8
7
6
57
14.1
37 36 35 33 32 31
53
13.6
37 37 36 35 34 33
52
13.6
19 17 15 13 11
9
60
14.1
59 57 55 53 51 49
55
13.6
59 59 58 56 54 52
54
13.6
25 23 20 18 15 12
59
14.1
59 58 57 54 52 49
55
13.6
59 59 59 56 53 51
54
13.6
32 28 25 22 19 16
59
14.1
59 59 59 56 53 49
55
13.6
59 59 59 56 53 50
54
13.6
85°F
Sensible Capacity (MBH)*
Return Dry Bulb (°F)
90 85 80 75 70 65
18 16 14 12 10
9
35 34 32 30 28 26
39 37 35 34 32 30
26 24 21 18 15 12
53 50 47 44 41 39
55 54 53 50 47 44
35 31 27 24 20 16
70 66 62 58 55 51
70 70 70 66 62 58
43 38 34 29 25 20
72 70 68 63 59 55
72 72 72 67 63 58
51 45 40 34 29 24
74 74 74 68 63 58
74 74 74 68 63 58
105°F
8
8
7
6
5
4
21 20 19 18 17 16
23 22 21 20 19 18
16 15 13 11
9
8
41 40 38 36 34 33
43 42 42 40 38 36
24 22 19 16 14 11
62 60 57 54 52 49
63 63 62 60 57 55
31 28 24 21 18 15
63 62 61 57 54 51
64 64 63 60 57 54
37 34 30 26 22 18
64 64 64 60 57 53
64 64 64 61 57 53
125°F
9
9
9
8
8
8
9
8
8
8
8
8
8
7
6
5
4
3
33 31 31 30 29 29
31 31 31 30 30 29
14 13 11
9
8
6
55 54 53 52 50 49
54 54 54 53 51 50
20 18 16 14 12 10
54 54 53 52 49 47
54 54 54 52 50 48
26 23 21 18 16 13
54 54 54 51 48 46
54 54 54 52 49 46
1. The capacities are gross ratings. For net capacity, deduct air blower motor, MBh = 3.415 x kW. Refer to the appropriate Blower
Performance table for the kW of the supply air blower motor.
2. These ratings include the condenser fan motors (total 1 kW) and the compressor motors but not the supply air blower motor.
All Sensible Capacity
18
Unitary Products Group
262292-YTG-C-0707
TABLE 8: COOLING CAPACITIES FOR WR240 (ALTERNATE REHEAT MODE)
Air on Evaporator Coil
CFM
6000
7000
8000
8450
8900
6000
7000
8000
8450
8900
6000
7000
8000
8450
8900
67
62
57
67
62
57
67
62
57
67
62
57
67
62
57
Total
Cap.1
(MBH)
100
93
83
109
102
90
119
110
98
113
105
93
107
99
88
Total2
Input
(kW)
15.9
15.1
15.1
15.8
15.1
15.0
15.7
15.0
14.9
15.7
15.0
14.9
15.7
14.9
14.9
67
62
57
67
62
57
67
62
57
67
62
57
67
62
57
87
79
72
96
88
79
106
96
87
101
92
83
96
87
79
17.3
16.7
16.5
17.2
16.6
16.4
17.2
16.6
16.4
17.2
16.6
16.4
17.2
16.6
16.4
67
62
57
67
62
57
67
62
57
67
62
57
67
62
57
67
57
54
75
64
61
83
71
68
80
68
65
77
65
63
19.1
18.7
18.3
19.1
18.7
18.3
19.2
18.7
18.3
19.1
18.6
18.2
19.0
18.5
18.2
WB
(°F)
Temperature of Air on Condenser Coil
75°F
Sensible Capacity (MBH)*
Total2
Total
Return Dry Bulb (°F)
Cap.1
Input
(kW)
(MBH)
90 85 80 75 70 65
20 18 16 14 12 10
94
16.6
44 42 40 38 36 35
86
15.9
50 48 46 45 43 41
77
15.8
31 28 24 21 18 15
103
16.5
68 65 62 59 56 53
95
15.8
74 74 71 68 64 61
85
15.7
42 37 33 29 24 20
112
16.4
92 88 83 79 75 70
103
15.8
98 98 95 91 86 82
93
15.7
42 38 33 29 25 21
107
16.4
88 88 85 80 76 72
98
15.8
93 93 92 87 83 79
88
15.7
42 38 34 30 26 22
101
16.4
88 88 86 82 78 73
93
15.8
88 88 88 84 80 76
84
15.7
95°F
7
6
5
5
4
3
77
18.2
16 15 14 14 13 12
68
17.7
18 18 17 16 16 15
63
17.4
20 18 16 14 12 10
86
18.2
46 44 42 40 38 35
76
17.7
53 52 50 48 46 44
70
17.4
34 30 27 23 20 16
94
18.2
76 73 69 66 62 59
84
17.7
87 86 83 79 76 72
78
17.4
36 32 29 25 22 18
90
18.1
78 78 75 71 68 64
80
17.6
83 83 81 77 74 70
74
17.3
38 35 31 27 24 20
86
18.1
79 79 79 75 72 67
76
17.6
79 79 79 75 72 68
71
17.3
115°F
57
20.0
46
19.7
46
19.2
11 10
8
7
6
5
64
20.1
27 26 25 24 23 21
52
19.7
34 33 32 31 30 29
52
19.2
21 19 17 15 13 10
72
20.1
54 52 50 47 45 43
58
19.8
68 67 65 62 60 58
58
19.3
22 19 17 15 13 11
70
20.0
55 53 51 48 46 44
56
19.7
65 65 64 61 59 57
56
19.2
22 20 18 16 14 12
67
19.9
55 53 51 49 47 45
54
19.5
63 63 63 61 59 56
54
19.0
85°F
Sensible Capacity (MBH)*
Return Dry Bulb (°F)
90 85 80 75 70 65
13 12 11
9
8
7
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
3
3
3
2
2
2
8
7
7
7
6
6
9
9
9
8
8
7
15 14 12 11
9
7
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
6
5
5
4
3
3
18 17 16 16 15 14
25 24 24 23 22 22
15 14 12 11
9
7
43 41 40 38 37 35
58 57 56 54 52 51
14 13 12 10
9
7
41 40 38 37 36 34
56 56 55 54 52 51
13 12 11 10
9
7
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
19
262292-YTG-C-0707
TABLE 9: COOLING CAPACITIES FOR WR300 (ALTERNATE REHEAT MODE)
Air on Evaporator Coil
CFM
7500
7750
8000
8500
9000
7500
7750
8000
8500
9000
7500
7750
8000
8500
9000
67
62
57
67
62
57
67
62
57
67
62
57
67
62
57
Total
Cap.1
(MBH)
140
128
117
139
127
116
138
126
115
138
125
115
137
125
114
Total2
Input
(kW)
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
67
62
57
67
62
57
67
62
57
67
62
57
67
62
57
118
110
108
117
109
107
116
108
106
117
109
107
118
110
108
23.4
22.3
21.7
23.5
22.3
21.8
23.6
22.4
21.9
23.6
22.4
21.9
23.6
22.4
21.9
67
62
57
67
62
57
67
62
57
67
62
57
67
62
57
97
91
88
97
91
87
96
90
86
98
92
88
99
93
89
26.2
25.0
24.6
26.2
25.0
24.6
26.3
25.1
24.7
26.3
25.1
24.7
26.3
25.1
24.7
WB
(°F)
Temperature of Air on Condenser Coil
75°F
Sensible Capacity (MBH)*
Total2
Total
Return Dry Bulb (°F)
Cap.1
Input
(kW)
(MBH)
90 85 80 75 70 65
19 17 16 14 12 10
129
22.3
88 86 84 82 80 78
119
21.1
104 102 100 98 96 94
113
20.3
21 19 17 15 12 10
128
22.4
88 86 84 82 80 78
118
21.2
104 102 100 98 96 94
112
20.4
22 20 18 15 13 11
127
22.5
88 86 84 82 80 78
117
21.3
104 102 100 98 96 93
111
20.4
24 22 19 17 15 12
127
22.5
98 95 92 90 88 85
117
21.3
109 108 107 105 102 100
111
20.5
26 23 21 19 16 14
127
22.5
107 104 100 98 96 93
117
21.3
114 114 114 112 109 107
111
20.5
95°F
4
4
3
3
2
2
108
24.8
49 48 48 48 47 47
101
23.6
59 59 58 58 57 57
98
23.1
5
5
4
4
3
3
107
24.9
62 62 61 61 60 60
100
23.7
75 75 74 73 73 72
97
23.2
6
6
5
4
4
3
106
24.9
75 75 74 73 73 72
99
23.8
91 90 90 89 89 88
96
23.3
9
8
7
6
5
5
107
24.9
93 92 92 91 90 89
100
23.8
99 99 99 98 97 96
97
23.3
11 10
9
8
7
6
108
24.9
110 108 107 106 105 104
101
23.8
108 108 108 107 106 105
98
23.3
115°F
87
27.6
14 13 13 12 12 12
82
26.4
15 15 15 14 14 13
77
26.0
4
4
3
2
2
1
87
27.6
39 39 38 37 37 36
82
26.4
45 44 43 43 42 41
77
26.0
7
6
5
4
3
2
86
27.6
65 64 63 62 62 61
81
26.5
74 73 72 71 70 69
76
26.1
7
6
5
4
3
2
88
27.7
66 65 64 63 62 61
83
26.5
75 74 73 72 71 70
78
26.1
7
6
5
4
3
2
90
27.7
68 66 65 64 63 62
85
26.5
77 76 74 73 72 71
80
26.1
85°F
Sensible Capacity (MBH)*
Return Dry Bulb (°F)
90 85 80 75 70 65
12 11
9
8
7
6
68 67 66 65 64 62
81 80 79 78 77 76
13 12 10
9
8
7
75 74 73 71 70 69
90 88 87 86 84 83
14 13 11 10
9
7
82 81 79 78 76 75
98 96 95 93 92 91
16 15 13 12 10
9
95 94 92 90 89 87
104 104 103 101 100 98
18 17 15 13 12 10
108 107 105 103 102 100
111 111 111 109 107 106
105°F
3
3
2
2
1
1
31 31 30 30 30 29
37 37 36 36 36 35
5
4
4
3
2
2
51 50 50 49 48 48
60 59 59 58 58 57
6
6
5
4
3
3
70 69 69 68 67 66
82 82 81 80 79 79
8
7
6
5
4
3
79 79 78 77 76 75
87 87 86 85 84 83
9
8
7
6
5
4
89 88 87 86 85 84
92 92 91 90 89 88
125°F
4
3
2
2
28 27 27 26 25 24
29 29 28 27 27 26
7
6
5
4
60 59 58 57 56 55
65 64 63 62 61 60
6
5
4
3
53 52 50 49 48 47
63 62 60 59 58 57
6
4
3
2
47 45 43 42 40 39
61 59 58 56 55 54
1. The capacities are gross ratings. For net capacity, deduct air blower motor, MBh = 3.415 x kW. Refer to the appropriate Blower
Performance table for the kW of the supply air blower motor.
2. These ratings include the condenser fan motors (total 1 kW) and the compressor motors but not the supply air blower motor.
All Sensible Capacity
20
Unitary Products Group
262292-YTG-C-0707
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FIGURE 5: WR180 MOISTURE REMOVAL - ALTERNATE MODE
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FIGURE 6: WR180 MOISTURE REMOVAL - NORMAL MODE
Unitary Products Group
21
262292-YTG-C-0707
20-Ton Moisture Removal @ 8000 cfm
Alternate mode @ various indoor (wet bulb/dry bulb) conditions
160
140
120
Lbs/Hr
100
80
60
40
20
0
65
75
85
95
105
Outdoor Temp ºF
75/71
80/71
75/67
85/71
80/67
85/67
FIGURE 7: WR240 MOISTURE REMOVAL - ALTERNATE MODE
20-Ton Moisture Removal @ 8000 cfm
Normal mode @ various indoor (wet bulb/dry bulb) conditions
70
60
Lbs/Hr
50
40
30
20
10
0
65
75
85
95
105
Outdoor Temp ºF
75/71
80/71
75/67
85/71
FIGURE 8: WR240 MOISTURE REMOVAL - NORMAL MODE
22
Unitary Products Group
262292-YTG-C-0707
25-Ton Moisture Removal @ 8000 cfm
Alternate mode @ various indoor (wet bulb/dry bulb) conditions
180
160
140
Lbs/Hr
120
100
80
60
40
20
0
65
75
85
95
105
Outdoor Temp ºF
75/71
80/71
75/67
85/71
80/67
85/67
FIGURE 9: WR300 MOISTURE REMOVAL - ALTERNATE MODE
25-Ton Moisture Removal @ 8000 cfm
Normal mode @ various indoor (wet bulb/dry bulb) conditions
100
90
80
Lbs/Hr
70
60
50
40
30
20
10
0
65
75
85
95
105
Outdoor Temp ºF
75/71
80/71
75/67
85/71
80/67
FIGURE 10:WR300 MOISTURE REMOVAL - NORMAL MODE
Unitary Products Group
23
262292-YTG-C-0707
CFM, STATIC PRESSURE, AND POWER - ALTITUDE
AND TEMPERATURE CORRECTIONS
use the indoor blower tables for high altitude applications,
certain corrections are necessary.
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
AIR TEMP
40
50
60
70
80
90
100
0
1.060
1.039
1.019
1.000
0.982
0.964
0.946
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
ALTITUDE (FEET)
4000
5000
0.916
0.882
0.898
0.864
0.880
0.848
0.864
0.832
0.848
0.817
0.833
0.802
0.817
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
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.
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.
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.
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
Example 2: A system, located at 5,000 feet of elevation, is to
deliver 6,000 CFM at a static pressure of 1.5". Use the unit
24
Suppose that the corresponding BHP listed in the table is 3.2.
This value must be corrected for elevation.
BHP at 5,000 ft = 3.2 x .832 = 2.66
Unitary Products Group
262292-YTG-C-0707
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FIGURE 11:ALTITUDE/TEMPERATURE CONVERSION FACTOR
Unitary Products Group
25
262292-YTG-C-0707
TABLE 11: WR180 BLOWER PERFORMANCE - 15 TON STANDARD DRIVE (COOLING ONLY) DOWNFLOW
ESP
0.2
0.4
0.6
0.8
1.0
1.2
1.4
Blower Performance (Downflow Discharge)
CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP
6284 956 3.50 4.20 6080 922 3.14 3.77 5800 889 2.84 3.41 5514 856 2.536 3.04
5918 957 3.25 3.89 5718 923 2.92 3.51 5434 889 2.61 3.13 5228 857 2.32 2.78
5590 958 3.05 3.66 5379 925 2.74 3.28 5098 891 2.41 2.90 4829 858 2.18 2.61
5226 959 2.79 3.34 4985 926 2.45 2.95 4639 893 2.18 2.62 4336 860 1.91 2.30
4801 961 2.52 3.03 4529 928 2.23 2.68 4141 894 1.95 2.34 3754 861 1.69 2.03
4326 962 2.28 2.73 3912 930 1.95 2.34 3405 896 1.59 1.91 2964 863 1.38 1.65
3650 965 1.95 2.34 3199 931 1.62 1.95
1 turn
2 turns
3 turns
4 turns
CFM RPM KW BHP CFM RPM KW BHP
5290 821 2.209 2.65 5056 788 1.992 2.39
4914 822 2.04 2.45 4668 789 1.85 2.22
4452 823 1.81 2.17 4175 790 1.67 2.01
3937 825 1.58 1.90 3608 791 1.42 1.70
3222 826 1.35 1.62 2752 792 1.13 1.35
5 turns
6 turns
15-Ton Standard Drive, Cooling Only, Bottom Connection
1VP62 x BK105
7000
6500
1 Turn
2 Turns
3 Turns
6000
4 Turns
5 Turns
6 Turns
SCFM
5500
5000
4500
4000
3500
3000
2500
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
External Static ("WC)
26
Unitary Products Group
262292-YTG-C-0707
TABLE 12: WR180 BLOWER PERFORMANCE - 15 TON STANDARD DRIVE (GAS HEAT) DOWNFLOW
ESP
0.2
0.4
0.6
0.8
1.0
1.2
1.4
Blower Performance (Downflow Discharge)
CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP CFM RPM KW BHP
6158 956 3.29 3.95 5958 922 2.96 3.55 5684 889 2.67 3.20 5404 856 2.38 2.86
5800 957 3.05 3.66 5604 923 2.75 3.30 5325 889 2.45 2.94 5123 857 2.18 2.62
5478 958 2.87 3.44 5271 925 2.57 3.09 4996 891 2.27 2.72 4732 858 2.05 2.46
5121 959 2.62 3.14 4885 926 2.31 2.77 4546 893 2.05 2.46 4249 860 1.80 2.16
4705 961 2.37 2.85 4438 928 2.10 2.52 4058 894 1.83 2.20 3679 861 1.59 1.91
4239 962 2.14 2.57 3834 930 1.83 2.20 3337 896 1.49 1.79 2905 863 1.29 1.55
3577 965 1.83 2.20 3135 931 1.52 1.83
1 turn
2 turns
3 turns
4 turns
CFM RPM KW
5184 821 2.08
4816 822 1.92
4363 823 1.70
3858 825 1.48
3158 826 1.27
5 turns
BHP
2.49
2.31
2.04
1.78
1.52
-
CFM RPM KW
4955 788 1.87
4575 789 1.74
4092 790 1.57
3536 791 1.33
2697 792 1.06
6 turns
BHP
2.25
2.09
1.89
1.60
1.27
-
15-Ton Standard Drive, Gas Heat, Bottom Connection
1VP62 x BK105
7000
6500
1 Turn
2 Turns
3 Turns
4 Turns
5 Turns
6 Turns
6000
SCFM
5500
5000
4500
4000
3500
3000
2500
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
External Static ("WC)
Unitary Products Group
27
262292-YTG-C-0707
TABLE 13: WR180 BLOWER PERFORMANCE - 15 TON HIGH STATIC DRIVE (COOLING ONLY) DOWNFLOW
ESP
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
CFM
7695
7344
6994
6711
6415
6032
5659
5315
4733
RPM KW
1120 5.68
1122 5.34
1123 4.99
1125 4.77
1126 4.54
1127 4.22
1128 3.89
1130 3.60
1131 3.15
1 turn
BHP
6.93
6.51
6.08
5.83
5.54
5.15
4.67
4.32
3.78
7.5 HP motor
CFM
7434
7089
6751
6478
6193
5823
5463
5042
4402
RPM KW
1082 5.12
1083 4.80
1084 4.48
1086 4.29
1087 4.09
1088 3.80
1089 3.50
1090 3.23
1091 2.83
2 turns
BHP
6.25
5.86
5.47
5.24
4.90
4.56
4.20
3.88
3.40
Blower Performance (Downflow Discharge)
CFM RPM KW BHP CFM RPM KW BHP
7139 1043 4.55 5.55 6853 1005 4.10 4.92
6791 1044 4.32 5.28 6497 1005 3.80 4.57
6477 1046 4.06 4.87 6190 1006 3.63 4.36
6196 1046 3.85 4.62 5864 1007 3.41 4.09
5802 1048 3.58 4.30 5449 1008 3.07 3.68
5418 1049 3.28 3.93 5011 1009 2.79 3.34
4996 1049 3.00 3.60 4549 1010 2.48 2.98
4481 1050 2.68 3.21 4004 1011 2.20 2.64
3756 1052 2.28 2.73
3 turns
4 turns
CFM RPM KW BHP CFM RPM KW
6537 966 3.614 4.34 6173 926 3.20
6157 966 3.28 3.94 5791 927 2.92
5855 967 3.25 3.90 5430 927 2.74
5434 968 2.95 3.54 5023 928 2.54
5017 969 2.71 3.25 4554 929 2.21
4554 970 2.40 2.88 4030 930 1.99
4120 970 2.09 2.51 3216 931 1.63
3222 971 1.75 2.09
5 turns
6 turns
BHP
3.84
3.50
3.29
3.04
2.66
2.39
1.95
-
5 HP motor
15-Ton High Static Drive, Cooling Only, Bottom Connection
1VP62 x BK90
8000
1 Turn
7500
7000
2 Turns
3 Turns
4 Turns
6500 5 Turns
6 Turns
SCFM
6000
5500
5000
4500
4000
3500
3000
0.0
28
0.2
0.4
0.6
0.8
1.0
1.2
External Static ("WC)
1.4
1.6
1.8
2.0
Unitary Products Group
262292-YTG-C-0707
TABLE 14: WR180 BLOWER PERFORMANCE - 15 TON HIGH STATIC DRIVE (GAS HEAT) DOWNFLOW
ESP
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
CFM
7541
7197
6854
6576
6287
5911
5545
5209
4638
RPM KW
1120 5.34
1122 5.02
1123 4.69
1125 4.49
1126 4.27
1127 3.97
1128 3.66
1130 3.38
1131 2.96
1 turn
BHP
6.51
6.12
5.72
5.48
5.21
4.76
4.39
4.06
3.56
7.5 HP motor
CFM
7285
6947
6616
6348
6069
5707
5354
4941
4314
RPM KW
1082 4.81
1083 4.51
1084 4.21
1086 4.04
1087 3.84
1088 3.57
1089 3.29
1090 3.04
1091 2.66
2 turns
BHP
5.87
5.50
5.14
4.84
4.61
4.29
3.95
3.65
3.19
Blower Performance (Downflow Discharge)
CFM RPM KW BHP CFM RPM KW BHP
6996 1043 4.28 5.22 6716 1005 3.85 4.63
6655 1044 4.06 4.88 6367 1005 3.58 4.29
6347 1046 3.81 4.58 6066 1006 3.41 4.09
6072 1046 3.62 4.35 5747 1007 3.20 3.84
5686 1048 3.37 4.04 5340 1008 2.88 3.46
5310 1049 3.08 3.69 4911 1009 2.62 3.14
4896 1049 2.82 3.38 4458 1010 2.33 2.80
4391 1050 2.51 3.02 3924 1011 2.07 2.48
3681 1052 2.14 2.57
3 turns
4 turns
CFM RPM KW
6406 966 3.40
6034 966 3.08
5738 967 3.06
5325 968 2.78
4917 969 2.54
4463 970 2.25
4038 970 1.96
3158 971 1.64
5 turns
BHP
4.08
3.70
3.67
3.33
3.05
2.70
2.36
1.97
-
CFM RPM KW
6050 926 3.00
5675 927 2.74
5321 927 2.58
4923 928 2.38
4463 929 2.08
3949 930 1.87
3152 931 1.53
6 turns
BHP
3.61
3.29
3.09
2.86
2.50
2.24
1.83
-
5 HP motor
15-Ton High Static Drive, Gas Heat, Bottom Connection
1VP62 x BK90
8000
7500
7000
1 Turn
2 Turns
3 Turns
4 Turns
6500
SCFM
6000
5 Turns
6 Turns
5500
5000
4500
4000
3500
3000
0.0
Unitary Products Group
0.2
0.4
0.6
0.8
1.0
1.2
External Static ("WC)
1.4
1.6
1.8
2.0
29
262292-YTG-C-0707
TABLE 15: WR240 BLOWER PERFORMANCE - 20 TON STANDARD DRIVE (COOLING ONLY) DOWNFLOW
ESP
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
CFM
9720
9345
8975
8590
8197
7795
7313
RPM KW
1107 8.33
1108 8.04
1109 7.62
1110 7.32
1112 6.75
1113 6.40
1115 6.27
1 turn
BHP
10.16
9.81
9.29
8.93
8.24
7.81
7.65
10 HP motor
CFM
9557
9159
8775
8390
7977
7571
7086
-
RPM KW
1071 7.78
1073 7.58
1074 7.26
1076 6.82
1077 6.29
1078 5.98
1079 5.71
2 turns
BHP
9.49
9.25
8.86
8.32
7.67
7.29
6.97
-
Blower Performance (Downflow Discharge)
CFM RPM KW BHP CFM RPM KW BHP
9313 1036 7.22 8.81 8842 1002 6.35 7.75
8901 1038 6.79 8.29 8426 1003 6.02 7.34
8503 1039 6.50 7.94 7980 1005 5.64 6.88
8089 1040 6.10 7.45 7576 1006 5.33 6.51
7643 1041 5.72 6.97 7123 1007 5.00 6.10
7218 1043 5.43 6.62 6638 1008 4.54 5.54
6729 1044 4.95 6.04
3 turns
4 turns
CFM RPM KW
8481 968 5.68
8048 969 5.34
7621 970 5.03
7195 971 4.81
6739 972 4.46
5 turns
BHP
6.93
6.51
6.14
5.87
5.44
-
CFM RPM KW
8267 932 5.22
7805 934 4.83
7340 935 4.39
6858 936 4.21
6288 937 3.79
6 turns
BHP
6.38
5.90
5.35
5.13
4.62
-
7.5 HP motor
20-Ton Standard Drive, Cooling Only, Bottom Connection
VP68 x BK100
11000
10000
2 Turns
3 Turns
SCFM
9000
1 Turn
4 Turns
5 Turns
6 Turns
8000
7000
6000
5000
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
External Static ("WC)
30
Unitary Products Group
262292-YTG-C-0707
TABLE 16: WR240 BLOWER PERFORMANCE - 20 TON STANDARD DRIVE (GAS HEAT) DOWNFLOW
ESP
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
CFM
9892
9526
9158
8796
8418
8033
7639
7167
RPM KW
1106 8.30
1107 7.83
1108 7.56
1109 7.16
1110 6.88
1112 6.35
1113 6.01
1115 5.89
1 turn
BHP
10.13
9.55
9.23
8.74
8.40
7.75
7.34
7.19
10 HP motor
CFM
9366
8976
8600
8222
7817
7420
6944
-
RPM KW
1071 7.31
1073 7.12
1074 6.83
1076 6.41
1077 5.91
1078 5.62
1079 5.37
2 turns
BHP
8.92
8.69
8.33
7.82
7.21
6.86
6.55
-
Blower Performance (Downflow Discharge)
CFM RPM KW BHP CFM RPM KW BHP
9127 1036 6.78 8.28 8665 1002 5.97 7.28
8723 1038 6.38 7.79 8257 1003 5.65 6.90
8333 1039 6.11 7.46 7820 1005 5.30 6.47
7927 1040 5.73 7.00 7424 1006 5.01 6.12
7490 1041 5.37 6.56 6981 1007 4.70 5.74
7074 1043 5.10 6.22 6505 1008 4.26 5.20
6594 1044 4.65 5.68
3 turns
4 turns
CFM RPM KW
8311 968 5.34
7887 969 5.01
7469 970 4.73
7051 971 4.52
6604 972 4.19
5 turns
BHP
6.52
6.12
5.77
5.51
5.12
-
CFM RPM KW
8102 932 4.91
7649 934 4.54
7193 935 4.12
6721 936 3.95
6162 937 3.56
6 turns
BHP
5.99
5.55
5.03
4.83
4.35
-
7.5 HP motor
20-Ton Standard Drive, Gas Heat, Bottom Connection
VP68 x BK100
11000
10000
1 Turn
2 Turns
3 Turns
SCFM
9000
4 Turns
5 Turns
6 Turns
8000
7000
6000
5000
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
External Static ("WC)
Unitary Products Group
31
262292-YTG-C-0707
TABLE 17: WR240 BLOWER PERFORMANCE - 20 TON HIGH STATIC DRIVE (COOLING ONLY) DOWNFLOW
ESP
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
CFM
11465
11056
10697
10354
9993
9637
9229
8833
8446
7996
RPM KW
1201 11.98
1202 11.46
1203 10.97
1204 10.68
1205 10.12
1207 9.61
1208 9.20
1209 9.02
1210 8.27
1212 7.90
1 turn
BHP CFM RPM KW
14.62 10938 1167 10.57
13.98 10545 1168 10.23
13.39 10169 1169 9.78
13.03 9808 1170 9.42
12.35 9450 1171 8.94
11.73 9050 1172 8.48
11.23 8658 1174 7.94
11.01 8287 1175 7.83
10.09 7916 1176 7.41
9.64
2 turns
15 HP motor
Blower Performance (Downflow Discharge)
BHP CFM RPM KW BHP CFM RPM KW
12.90 10528 1131 9.67 11.80 9886 1096 8.54
12.48 10137 1133 9.20 11.23 9488 1097 8.17
11.93 9769 1134 8.68 10.59 9109 1099 7.70
11.50 9370 1135 8.50 10.37 8721 1101 7.38
10.91 9000 1136 7.94 9.69 8355 1102 6.98
10.35 8624 1137 7.39 9.02 7990 1103 6.64
9.69 8239 1138 7.24 8.84 7591 1104 6.31
9.56 7852 1140 6.67 8.14 7135 1105 5.91
9.04 7356 1141 6.48 7.91
3 turns
4 turns
10 HP motor
BHP
10.43
9.98
9.39
9.01
8.52
8.10
7.70
7.21
-
CFM
9525
9092
8729
8314
7899
7500
7009
-
RPM KW
1063 7.55
1064 7.32
1065 7.28
1066 6.65
1067 6.03
1068 5.96
1069 5.58
5 turns
BHP
9.21
8.93
8.88
8.11
7.36
7.28
6.81
-
CFM
9054
8633
8237
7835
7412
6962
-
RPM KW
1027 7.05
1028 6.45
1029 6.18
1030 5.82
1031 5.53
1032 4.79
6 turns
BHP
8.60
7.87
7.54
7.11
6.75
5.84
-
7.5 HP motor
20-Ton High Static Drive, Cooling Only, Bottom Connection
VP71 x BK100
12000
1 Turn
11000
2 Turns
3 Turns
10000
4 Turns
SCFM
5 Turns
6 Turns
9000
8000
7000
6000
0.2
32
0.4
0.6
0.8
1.0
1.2
1.4
External Static ("WC)
1.6
1.8
2.0
2.2
Unitary Products Group
262292-YTG-C-0707
TABLE 18: WR240 BLOWER PERFORMANCE - 20 TON HIGH STATIC DRIVE (GAS HEAT) DOWNFLOW
ESP
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
CFM
11236
10835
10483
10147
9793
9444
9044
8656
8277
7836
RPM KW
1201 11.26
1202 10.77
1203 10.31
1204 10.04
1205 9.52
1207 9.03
1208 8.65
1209 8.48
1210 7.77
1212 7.43
1 turn
BHP CFM RPM KW
13.74 10719 1167 9.94
13.14 10334 1168 9.62
12.58 9966 1169 9.19
12.25 9612 1170 8.86
11.61 9261 1171 8.40
11.02 8869 1172 7.97
10.55 8485 1174 7.47
10.35 8121 1175 7.36
9.49 7758 1176 6.97
9.07
2 turns
15 HP motor
Blower Performance (Downflow Discharge)
BHP CFM RPM KW BHP CFM RPM KW
12.13 10317 1131 9.09 11.09 9688 1096 8.03
11.73 9934 1133 8.65 10.56 9298 1097 7.68
11.22 9574 1134 8.16 9.96 8927 1099 7.23
10.81 9183 1135 7.99 9.75 8547 1101 6.94
10.25 8820 1136 7.46 9.11 8188 1102 6.56
9.73 8452 1137 6.95 8.48 7830 1103 6.24
9.11 8074 1138 6.81 8.31 7439 1104 5.93
8.99 7695 1140 6.27 7.65 6992 1105 5.55
8.50 7209 1141 6.09 7.44
3 turns
4 turns
10 HP motor
BHP
9.80
9.38
8.83
8.47
8.01
7.61
7.24
6.78
-
CFM
9335
8910
8554
8148
7741
7350
6869
-
RPM KW
1063 7.10
1064 6.88
1065 6.84
1066 6.25
1067 5.67
1068 5.61
1069 5.24
5 turns
BHP
8.66
8.39
8.35
7.62
6.92
6.84
6.40
-
CFM
8873
8460
8072
7678
7264
6823
-
RPM KW
1027 6.62
1028 6.06
1029 5.81
1030 5.48
1031 5.20
1032 4.50
6 turns
BHP
8.08
7.40
7.09
6.68
6.35
5.49
-
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
SCFM
4 Turns
5 Turns
9000
6 Turns
8000
7000
6000
0.2
Unitary Products Group
0.4
0.6
0.8
1.0
1.2
1.4
External Static ("WC)
1.6
1.8
2.0
2.2
33
262292-YTG-C-0707
TABLE 19: WR300 BLOWER PERFORMANCE - 25 TON STANDARD DRIVE (COOLING ONLY) DOWNFLOW
ESP CFM RPM KW
0.4 10636 1106 9.46
0.6 10312 1106 9.06
0.8 9975 1107 8.76
1.0 9629 1108 8.34
1.2 9262 1109 7.97
1.4 8897 1110 7.56
1.6 8488 1111 7.15
1.8 8068 1112 6.74
2.0 7654 1113 6.38
2.2 7135 1114 5.92
1 turn
BHP CFM RPM KW
11.55 10163 1072 8.55
11.06 9824 1072 8.17
10.69 9466 1073 7.75
10.18 9108 1073 7.41
9.73 8730 1074 7.11
9.22 8326 1075 6.72
8.73 7919 1076 6.28
8.23 7472 1076 5.92
7.79 6906 1077 5.37
7.22 6346 1078 4.91
2 turns
15 HP motor
10 HP motor
Blower Performance (Downflow Discharge)
BHP CFM RPM KW BHP CFM RPM KW
10.44 9813 1036 7.76 9.47 9394 999 6.98
9.97 9463 1036 7.37 8.99 9006 1000 6.60
9.46 9087 1036 6.99 8.53 8626 1001 6.31
9.04 8706 1037 6.64 8.11 8218 1001 5.91
8.67 8319 1038 6.33 7.72 7783 1002 5.55
8.21 7879 1039 5.85 7.14 7351 1002 5.18
7.67 7414 1039 5.46 6.66 6800 1003 4.79
7.22 6919 1040 5.09 6.22 6187 1004 4.29
6.56 6327 1041 4.67 5.70 5539 1005 3.88
5.99 5735 1042 4.25 5.19
3 turns
4 turns
BHP
8.52
8.05
7.69
7.22
6.77
6.32
5.84
5.24
4.73
-
CFM
8936
8553
8159
7717
7265
6804
6205
5478
4750
-
RPM KW
963 6.14
963 5.83
964 5.51
965 5.16
966 4.83
967 4.52
968 4.12
969 3.74
969 3.18
5 turns
BHP
7.49
7.11
6.73
6.29
5.89
5.51
5.03
4.56
3.88
-
CFM
8388
7987
7553
7118
6625
6087
5425
4665
-
RPM KW
927 5.45
927 5.10
928 4.84
929 4.49
929 4.21
930 3.82
931 3.51
931 3.02
6 turns
BHP
6.65
6.23
5.91
5.48
5.14
4.66
4.28
3.69
-
7.5 HP motor
25-Ton Standard Drive, Cooling Only, Bottom Duct Connection
1VP65 & B5V94
12000
11000
1 Turn
2 Turns
3 Turns
4 Turns
5 Turns
6 Turns
10000
SCFM
9000
8000
7000
6000
5000
4000
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
External Static ("WC)
34
Unitary Products Group
262292-YTG-C-0707
TABLE 20: WR300 BLOWER PERFORMANCE - 25 TON STANDARD DRIVE (GAS HEAT) DOWNFLOW
ESP CFM RPM KW
0.4 10423 1106 8.89
0.6 10106 1106 8.52
0.8 9776 1107 8.24
1.0 9436 1108 7.84
1.2 9077 1109 7.49
1.4 8719 1110 7.10
1.6 8318 1111 6.72
1.8 7907 1112 6.34
2.0 7501 1113 6.00
2.2 6992 1114 5.56
1 turn
BHP
10.85
10.40
10.05
9.57
9.14
8.67
8.20
7.74
7.32
6.79
15 HP motor
CFM
9960
9628
9277
8926
8555
8159
7761
7323
6768
6219
RPM KW
1072 8.04
1072 7.68
1073 7.28
1073 6.97
1074 6.68
1075 6.32
1076 5.91
1076 5.56
1077 5.05
1078 4.62
2 turns
10 HP motor
Blower Performance (Downflow Discharge)
BHP CFM RPM KW BHP CFM RPM KW
9.81 9617 1036 7.29 8.90 9206 999 6.56
9.38 9274 1036 6.92 8.45 8826 1000 6.20
8.89 8905 1036 6.57 8.01 8453 1001 5.93
8.50 8532 1037 6.24 7.62 8054 1001 5.56
8.15 8153 1038 5.95 7.26 7627 1002 5.21
7.71 7721 1039 5.50 6.71 7204 1002 4.87
7.21 7266 1039 5.13 6.26 6664 1003 4.50
6.79 6781 1040 4.79 5.84 6063 1004 4.03
6.16 6200 1041 4.39 5.36 5428 1005 3.65
5.63 5620 1042 4.00 4.88
3 turns
4 turns
BHP
8.01
7.57
7.23
6.78
6.36
5.94
5.49
4.92
4.45
-
CFM
8757
8382
7996
7563
7120
6668
6081
5368
4655
-
RPM KW
963 5.77
963 5.48
964 5.18
965 4.85
966 4.54
967 4.25
968 3.87
969 3.52
969 2.99
5 turns
BHP
7.04
6.68
6.33
5.91
5.53
5.18
4.73
4.29
3.65
-
CFM
8220
7827
7402
6976
6493
5965
5317
4572
-
RPM KW
927 5.12
927 4.80
928 4.55
929 4.22
929 3.96
930 3.59
931 3.30
931 2.84
6 turns
BHP
6.25
5.85
5.55
5.15
4.83
4.38
4.02
3.47
-
7.5 HP motor
25-Ton Standard Drive, Gas Heat, Bottom Duct Connection
1VP65 & B5V94
12000
11000
1 Turn
2 Turns
3 Turns
4 Turns
5 Turns
6 Turns
10000
SCFM
9000
8000
7000
6000
5000
4000
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
External Static ("WC)
Unitary Products Group
35
262292-YTG-C-0707
TABLE 21: WR300 BLOWER PERFORMANCE - 25 TON HIGH STATIC DRIVE (COOLING ONLY) DOWNFLOW
ESP
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
2.6
CFM
11830
11546
11239
10923
10618
10302
9958
9605
9219
8796
8287
7782
RPM KW
1216 12.80
1217 12.31
1217 11.87
1218 11.48
1219 11.14
1221 10.66
1222 10.21
1223 9.71
1225 9.25
1226 8.82
1227 8.19
1229 7.98
1 turn
BHP
15.62
15.02
14.49
14.01
13.60
13.01
12.45
11.85
11.29
10.76
10.00
9.74
15 HP motor
CFM
11374
11079
10770
10388
10054
9703
9346
9032
8638
8250
7791
-
10 HP motor
Blower Performance (Downflow Discharge)
BHP CFM RPM KW BHP CFM RPM KW
14.05 11030 1146 10.55 12.87 10572 1111 9.50
13.57 10600 1147 10.00 12.20 10231 1112 9.11
13.17 10232 1147 9.63 11.75 9912 1112 8.87
12.51 9919 1148 9.28 11.32 9607 1114 8.39
11.98 9591 1149 8.93 10.90 9201 1114 8.01
11.50 9228 1150 8.48 10.35 8793 1115 7.55
11.04 8861 1151 8.12 9.91 8394 1116 7.13
10.51 8484 1153 7.58 9.25 8008 1117 6.86
9.98 8092 1154 7.26 8.86 7624 1118 6.37
9.49 7637 1155 6.67 8.14 7134 1119 5.99
8.86
3 turns
4 turns
BHP
11.59
11.12
10.82
10.24
9.77
9.21
8.69
8.37
7.77
7.31
-
CFM
10220
9885
9537
9171
8799
8407
7992
7513
6987
-
RPM KW
1075 8.67
1076 8.28
1077 7.94
1078 7.54
1079 7.18
1080 6.76
1081 6.42
1081 6.01
1082 5.53
5 turns
BHP
10.58
10.10
9.69
9.20
8.76
8.25
7.84
7.33
6.75
-
CFM
9928
9575
9207
8833
8439
7996
7565
7045
-
RPM KW
1041 7.91
1040 7.52
1042 7.08
1043 6.72
1044 6.39
1044 6.03
1045 5.66
1047 5.20
6 turns
BHP
9.65
9.18
8.63
8.21
7.80
7.36
6.90
6.35
-
7.5 HP motor
25-Ton High Static Drive, Cooling Only, Bottom Duct Connection
1VP71 & 1B5V94
13000
12000
1 Turn
2 Turns
3 Turns
4 Turns
5 Turns
6 Turns
11000
SCFM
RPM KW
1181 11.51
1181 11.12
1182 10.79
1183 10.25
1185 9.82
1186 9.42
1186 9.05
1187 8.61
1189 8.18
1190 7.78
1191 7.26
2 turns
10000
9000
8000
7000
6000
0.2
36
0.4
0.6
0.8
1.0
1.2
1.4
1.6
External Static ("WC)
1.8
2.0
2.2
2.4
2.6
Unitary Products Group
262292-YTG-C-0707
TABLE 22: WR300 BLOWER PERFORMANCE - 25 TON HIGH STATIC DRIVE (GAS HEAT) DOWNFLOW
ESP
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
2.6
CFM
11593
11315
11014
10705
10406
10096
9759
9413
9035
8620
8121
7626
RPM KW
1216 12.03
1217 11.57
1217 11.16
1218 10.79
1219 10.47
1221 10.02
1222 9.59
1223 9.13
1225 8.70
1226 8.29
1227 7.70
1229 7.50
1 turn
BHP
14.68
14.12
13.62
13.17
12.78
12.23
11.71
11.14
10.61
10.12
9.40
9.15
15 HP motor
CFM
11147
10857
10555
10180
9853
9509
9159
8851
8465
8085
7635
-
RPM KW
1181 10.82
1181 10.45
1182 10.14
1183 9.64
1185 9.23
1186 8.85
1186 8.51
1187 8.09
1189 7.69
1190 7.31
1191 6.82
2 turns
10 HP motor
BHP
10.90
10.45
10.17
9.62
9.19
8.66
8.17
7.87
7.30
6.87
-
CFM
10016
9687
9346
8988
8623
8239
7832
7363
6847
-
RPM KW
1075 8.15
1076 7.78
1077 7.46
1078 7.09
1079 6.75
1080 6.36
1081 6.04
1081 5.65
1082 5.20
5 turns
BHP
9.95
9.49
9.11
8.65
8.23
7.76
7.37
6.89
6.34
-
CFM
9729
9384
9023
8656
8270
7836
7414
6904
-
RPM KW
1041 7.43
1040 7.07
1042 6.65
1043 6.32
1044 6.01
1044 5.67
1045 5.32
1047 4.89
6 turns
BHP
9.07
8.63
8.12
7.71
7.33
6.92
6.49
5.97
-
7.5 HP motor
25-Ton High Static Drive, Gas Heat, Bottom Duct Connection
1VP71 & 1B5V94
13000
12000
1 Turn
2 Turns
3 Turns
11000
SCFM
Blower Performance (Downflow Discharge)
BHP CFM RPM KW BHP CFM RPM KW
13.20 10809 1146 9.91 12.10 10361 1111 8.93
12.76 10388 1147 9.40 11.47 10026 1112 8.56
12.38 10027 1147 9.05 11.05 9714 1112 8.34
11.76 9721 1148 8.72 10.65 9415 1114 7.88
11.26 9399 1149 8.39 10.24 9017 1114 7.53
10.81 9043 1150 7.97 9.73 8617 1115 7.10
10.38 8684 1151 7.63 9.31 8226 1116 6.70
9.88 8314 1153 7.13 8.70 7848 1117 6.45
9.38 7930 1154 6.82 8.33 7472 1118 5.98
8.92 7484 1155 6.27 7.65 6991 1119 5.63
8.33
3 turns
4 turns
4 Turns
5 Turns
6 Turns
10000
9000
8000
7000
6000
0.2
0.4
Unitary Products Group
0.6
0.8
1.0
1.2
1.4
1.6
External Static ("WC)
1.8
2.0
2.2
2.4
2.6
37
262292-YTG-C-0707
TABLE 23: BLOWER MOTOR AND DRIVE DATA
MODEL
SIZE
MOTOR1
BLOWER
RANGE
(RPM) HP FRAME EFF.
(%)
DRIVE
Standard
15 TON
High
Static
790/970
5
184 T
940/1130 7.5
Low
Static
High
Static
Low
Static
213 T
91
213 T
91
10
215 T
91
1000/1180 15
254 T
91
7.5
213 T
91
900/1100
DESIGNATION
OUTSIDE
DIA.
(IN.)
PITCH
DIA.
(IN.)
1VP62
5.95
4.9-5.92
1VP68
6.55
5.5-6.5
89.5
7.5
910/1100
20 TON Standard
ADJUSTABLE MOTOR PULLEY
1VP71
7.1
5.4-6.6
1VP65
6.0
4.8-6.0
BORE DESIG(IN.) NATION
1000/1200
15
254 T
91
1VP71
7.1
5.5-6.5
OUTSIDE
DIA.
(IN.)
PITCH
DIA.
(IN.)
1-1/8
BK105
10.25
9.9
1-3/8
BK90
8.75
8.4
BK100
9.75
9.4
1B5V94
9.7
9.5
PITCH
BORE DESIGLENGTH QTY.
(IN.) NATION
(IN.)
1
BX81
82.8
1
1-3/16
BX81
82.8
1
BX78
79.8
1-3/8
1-5/8
1-3/8
1-3/16
25 TON Standard
High
Static
BELT
(NOTCHED)
FIXED BLOWER PULLEY
1-5/8
1
1-7/16
BX81
82.8
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 RESISTANCES1
DESCRIPTION
WET INDOOR COIL
18 KW
36 KW
54 KW
72 KW
ELECTRIC HEAT OPTIONS
ECONOMIZER OPTION
HORIZONTAL DUCT CONNECTIONS2
4500
0.1
0.3
0.3
0.4
0.4
0.1
15 TON
6000
0.1
0.4
0.4
0.5
0.5
0.1
7500
0.1
0.4
0.5
0.5
0.5
0.1
0.1
0.2
0.3
RESISTANCE, IWG
CFM
20 TON
6000
8000
9000
0.1
0.1
0.2
0.4
0.4
0.5
0.4
0.5
0.5
0.5
0.5
0.6
0.5
0.5
0.6
0.1
0.1
0.2
0.2
0.3
0.5
7500
0.1
0.4
0.5
0.5
0.5
0.1
25 TON
8000
0.1
0.4
0.5
0.5
0.5
0.1
9000
0.2
0.5
0.5
0.6
0.6
0.2
0.3
0.3
0.5
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
0.2
1
SPEED
0.3
0.4
0.5
0.6
CFM
kW
CFM
kW
CFM
kW
CFM
kW
CFM
kW
HIGH
5250
0.83
4500
0.85
4200
0.88
3750
0.93
3000
0.99
MEDIUM
4900
0.77
3900
0.79
3500
0.82
2900
0.85
-
-
LOW
4400
0.72
3700
0.74
3000
0.78
-
-
-
-
2
1. Power exhaust motor is a 3/4 HP, PSC type with sleeve bearings, a 48 frame and inherent protection.
2. The factory setting.
38
Unitary Products Group
262292-YTG-C-0707
TABLE 26: WR ELECTRICAL DATA - STANDARD DRIVE MOTOR W/O POWERED CONVENIENCE OUTLET
COMPRESSORS
MODEL
(TONNAGE)
VOLTAGE
RLA
EACH
LRA
EACH
OD FAN
MOTORS
FLA EACH
ID
BLOWER
MOTOR
FLA
CONV
OUTLET
AMPS
208
22.4
164
2.1
17.7
0.0
230
22.4
164
2.1
16.4
0.0
460
10.9
100
1.2
8.2
0.0
575
8.3
78
0.9
6.6
0.0
208
30.1
225
2.4
24.2
0.0
230
30.1
225
2.4
24.2
0.0
460
15.5
114
0.9
12.1
0.0
575
12.1
80
0.6
10.3
0.0
208
42.3
245
2.4
38.6
0.0
230
42.3
245
2.4
38.6
0.0
460
17.6
125
0.9
19.3
0.0
575
14.5
100
0.6
16.2
0.0
180
(15)
240
(20)
300
(25)
HEATER OPTION
MODEL
KW
STAGES
AMPS
None
E18
E36
E54
E72
None
E18
E36
E54
E72
None
E18
E36
E54
E72
None
E18
E36
E54
E72
None
E18
E36
E54
E72
None
E18
E36
E54
E72
None
E18
E36
E54
E72
None
E18
E36
E54
E72
None
E18
E36
E54
E72
None
E18
E36
E54
E72
None
E18
E36
E54
E72
None
E18
E36
E54
E72
13.5
27
40.6
54.1
18.0
36.0
54.0
72.0
18.0
36.0
54.0
72.0
18.0
36.0
54.0
72.0
13.5
27
40.6
54.1
18.0
36.0
54.0
72.0
18.0
36.0
54.0
72.0
18.0
36.0
54.0
72.0
13.5
27
40.6
54.1
18.0
36.0
54.0
72.0
18.0
36.0
54.0
72.0
18.0
36.0
54.0
72.0
1
2
2
2
1
2
2
2
1
2
2
2
1
2
2
2
1
2
2
2
1
2
2
2
1
2
2
2
1
2
2
2
1
2
2
2
1
2
2
2
1
2
2
2
1
2
2
2
37.5
74.9
112.7
150.2
43.3
86.6
129.9
173.2
21.7
43.3
65.0
86.6
17.3
34.6
52.0
69.3
37.5
74.9
112.7
150.2
43.3
86.6
129.9
173.2
21.7
43.3
65.0
86.6
17.3
34.6
52.0
69.3
37.5
74.9
112.7
150.2
43.3
86.6
129.9
173.2
21.7
43.3
65.0
86.6
17.3
34.6
52.0
69.3
MIN.
CIRCUIT
AMPACITY
(AMPS)
76.5
76.5
115.8
163.0
172.3
75.2
75.2
128.8
150.4
193.7
37.5
37.5
64.4
75.2
96.9
28.9
29.9
51.6
60.2
77.5
101.5
101.5
123.9
171.1
180.4
101.5
101.5
138.5
160.2
203.5
50.6
50.6
69.3
80.1
101.7
39.9
39.9
56.2
64.8
82.2
143.4
143.4
143.4
189.1
198.4
143.4
143.4
156.5
178.2
221.5
62.9
62.9
78.3
89.1
110.7
51.7
51.7
63.6
72.2
89.5
MAX. FUSE/
BRKR1
SIZE
(AMPS)
90
90
125
175
200
90
90
150
175
225
45
45
70
90
110
35
35
60
70
90
125
125
125
175
200
125
125
150
175
225
60
60
70
90
110
50
50
60
70
90
175
175
175
200
225
175
175
175
200
250
80
80
80
100
125
60
60
70
80
100
NOTE 1: HACR Type per NEC.
VOLTAGE LIMITATIONS
POWER SUPPLY
VOLTAGE
LIMITATIONS1
1.
208/230-3-60
460-3-60
575-3-60
VOLTAGE
MIN.
187
414
518
MAX.
253
506
630
NOMINAL VOLTAGE
208
240
480
600
ELECTRIC HEAT CORRECTION FACTORS
VOLTAGE
kW CAP. MULTIPLIER
208
1.00
230
0.92
460
0.92
575
0.92
Utilization Range “A” in accordance with ARI Standard 110.
Unitary Products Group
39
262292-YTG-C-0707
TABLE 27: WR ELECTRICAL DATA - HIGH STATIC DRIVE MOTOR W/O POWERED CONVENIENCE OUTLET
COMPRESSORS
MODEL
(TONNAGE)
VOLTAGE
RLA
EACH
LRA
EACH
OD FAN
MOTORS
FLA EACH
ID
BLOWER
MOTOR
FLA
CONV
OUTLET
AMPS
208
22.4
164
2.1
20.0
0.0
230
22.4
164
2.1
20.0
0.0
460
10.9
100
1.2
10.0
0.0
575
8.3
78
0.9
7.5
0.0
208
30.1
225
2.4
38.6
0.0
230
30.1
225
2.4
38.6
0.0
460
15.5
114
0.9
19.3
0.0
575
12.1
80
0.6
16.2
0.0
208
42.3
245
2.4
38.6
0.0
230
42.3
245
2.4
38.6
0.0
460
17.6
125
0.9
19.3
0.0
575
14.5
100
0.6
16.2
0.0
180
(15)
240
(20)
300
(25)
HEATER OPTION
MODEL
KW
STAGES
AMPS
None
E18
E36
E54
E72
None
E18
E36
E54
E72
None
E18
E36
E54
E72
None
E18
E36
E54
E72
None
E18
E36
E54
E72
None
E18
E36
E54
E72
None
E18
E36
E54
E72
None
E18
E36
E54
E72
None
E18
E36
E54
E72
None
E18
E36
E54
E72
None
E18
E36
E54
E72
None
E18
E36
E54
E72
13.5
27
40.6
54.1
18.0
36.0
54.0
72.0
18.0
36.0
54.0
72.0
18.0
36.0
54.0
72.0
13.5
27
40.6
54.1
18.0
36.0
54.0
72.0
18.0
36.0
54.0
72.0
18.0
36.0
54.0
72.0
13.5
27
40.6
54.1
18.0
36.0
54.0
72.0
18.0
36.0
54.0
72.0
18.0
36.0
54.0
72.0
1
2
2
2
1
2
2
2
1
2
2
2
1
2
2
2
1
2
2
2
1
2
2
2
1
2
2
2
1
2
2
2
1
2
2
2
1
2
2
2
1
2
2
2
1
2
2
2
37.5
74.9
112.7
150.2
43.3
86.6
129.9
173.2
21.7
43.3
65.0
86.6
17.3
34.6
52.0
69.3
37.5
74.9
112.7
150.2
43.3
86.6
129.9
173.2
21.7
43.3
65.0
86.6
17.3
34.6
52.0
69.3
37.5
74.9
112.7
150.2
43.3
86.6
129.9
173.2
21.7
43.3
65.0
86.6
17.3
34.6
52.0
69.3
MIN.
CIRCUIT
AMPACITY
(AMPS)
78.8
78.8
118.7
165.9
175.2
78.8
79.1
133.3
154.9
198.2
39.3
39.6
66.6
77.5
99.1
29.8
31.0
52.7
61.3
78.7
118.1
118.1
141.9
189.1
198.4
118.1
118.1
156.5
178.2
221.5
58.7
58.7
78.3
89.1
110.7
46.9
46.9
63.6
72.2
89.5
143.4
143.4
143.4
189.1
198.4
143.4
143.4
156.5
178.2
221.5
62.9
62.9
78.3
89.1
110.7
51.7
51.7
63.6
72.2
89.5
MAX. FUSE/
BRKR1
SIZE
(AMPS)
100
100
125
175
200
100
100
150
175
225
50
50
70
90
110
35
35
60
70
90
150
150
150
200
225
150
150
175
200
250
70
70
80
100
125
60
60
70
80
100
175
175
175
200
225
175
175
175
200
250
80
80
80
100
125
60
60
70
80
100
NOTE 1: HACR Type per NEC.
VOLTAGE LIMITATIONS
POWER SUPPLY
VOLTAGE
LIMITATIONS1
1.
40
208/230-3-60
460-3-60
575-3-60
VOLTAGE
MIN.
187
414
518
MAX.
253
506
630
NOMINAL VOLTAGE
208
240
480
600
ELECTRIC HEAT CORRECTION FACTORS
VOLTAGE
kW CAP. MULTIPLIER
208
1.00
230
0.92
460
0.92
575
0.92
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
MODEL
(TONNAGE)
VOLTAGE
RLA
EACH
LRA
EACH
OD FAN
MOTORS
FLA EACH
ID
BLOWER
MOTOR
FLA
CONV
OUTLET
AMPS
208
30.1
225
2.4
20.0
0.0
230
30.1
225
2.4
20.0
0.0
460
15.5
114
0.9
10.0
0.0
575
12.1
80
0.6
7.5
0.0
208
42.3
245
2.4
20.0
0.0
230
42.3
245
2.4
20.0
0.0
460
17.6
125
0.9
10.0
0.0
575
14.5
100
0.6
7.5
0.0
240
(20)
300
(25)
HEATER OPTION
MODEL
KW
STAGES
AMPS
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
13.5
27.0
40.6
54.1
0.0
18.0
36.0
54.0
72.0
0.0
18.0
36.0
54.0
72.0
0.0
18.0
36.0
54.0
72.0
0.0
13.5
27.0
40.6
54.1
0.0
18.0
36.0
54.0
72.0
0.0
18.0
36.0
54.0
72.0
0.0
18.0
36.0
54.0
72.0
1
2
2
2
1
2
2
2
1
2
2
2
1
2
2
2
1
2
2
2
1
2
2
2
1
2
2
2
1
2
2
2
37.5
75.1
112.7
150.2
43.3
86.6
129.9
173.2
21.7
43.3
65.0
86.6
17.3
34.6
52.0
69.3
37.5
75.1
112.6
150.1
43.3
86.6
129.9
173.2
21.7
43.3
65.0
86.6
17.3
34.6
52.0
69.3
MIN.
CIRCUIT
AMPACITY
(AMPS)
97.3
97.3
118.7
165.9
175.2
97.3
97.3
133.3
154.9
198.2
48.5
48.5
66.6
77.5
99.1
37.1
37.1
52.7
61.3
78.7
124.8
124.8
124.8
165.9
175.2
124.8
124.8
133.3
154.9
198.2
53.2
53.2
66.6
77.5
99.1
42.5
42.5
52.7
61.3
78.7
MAX. FUSE/
BRKR1
SIZE
(AMPS)
125
125
125
175
200
125
125
150
175
225
60
60
70
90
110
45
45
60
70
90
150
150
150
175
200
150
150
150
175
225
70
70
70
90
110
50
50
60
70
90
NOTE 1: HACR Type per NEC.
VOLTAGE LIMITATIONS
POWER SUPPLY
VOLTAGE
LIMITATIONS1
1.
208/230-3-60
460-3-60
575-3-60
VOLTAGE
MIN.
187
414
518
MAX.
253
506
630
NOMINAL VOLTAGE
208
240
480
600
ELECTRIC HEAT CORRECTION FACTORS
VOLTAGE
kW CAP. MULTIPLIER
208
1.00
230
0.92
460
0.92
575
0.92
Utilization Range “A” in accordance with ARI Standard 110.
Unitary Products Group
41
262292-YTG-C-0707
TABLE 29: WR ELECTRICAL DATA - STANDARD DRIVE MOTOR WITH POWERED CONVENIENCE OUTLET
COMPRESSORS
MODEL
(TONNAGE)
VOLTAGE
RLA
EACH
LRA
EACH
OD FAN
MOTORS
FLA EACH
ID
BLOWER
MOTOR
FLA
CONV
OUTLET
AMPS
208
22.4
164
2.1
17.7
10.0
230
22.4
164
2.1
16.4
10.0
460
10.9
100
1.2
8.2
5.0
575
8.3
78
0.9
6.6
4.0
208
30.1
225
2.4
24.2
10.0
230
30.1
225
2.4
24.2
10.0
460
15.5
114
0.9
12.1
5.0
575
12.1
80
0.6
10.3
4.0
208
42.3
245
2.4
38.6
10.0
230
42.3
245
2.4
38.6
10.0
460
17.6
125
0.9
19.3
5.0
575
14.5
100
0.6
16.2
4.0
180
(15)
240
(20)
300
(25)
HEATER OPTION
MODEL
KW
STAGES
AMPS
None
E18
E36
E54
E72
None
E18
E36
E54
E72
None
E18
E36
E54
E72
None
E18
E36
E54
E72
None
E18
E36
E54
E72
None
E18
E36
E54
E72
None
E18
E36
E54
E72
None
E18
E36
E54
E72
None
E18
E36
E54
E72
None
E18
E36
E54
E72
None
E18
E36
E54
E72
None
E18
E36
E54
E72
13.5
27
40.6
54.1
18.0
36.0
54.0
72.0
18.0
36.0
54.0
72.0
18.0
36.0
54.0
72.0
13.5
27
40.6
54.1
18.0
36.0
54.0
72.0
18.0
36.0
54.0
72.0
18.0
36.0
54.0
72.0
13.5
27
40.6
54.1
18.0
36.0
54.0
72.0
18.0
36.0
54.0
72.0
18.0
36.0
54.0
72.0
1
2
2
2
1
2
2
2
1
2
2
2
1
2
2
2
1
2
2
2
1
2
2
2
1
2
2
2
1
2
2
2
1
2
2
2
1
2
2
2
1
2
2
2
1
2
2
2
37.5
74.9
112.7
150.2
43.3
86.6
129.9
173.2
21.7
43.3
65.0
86.6
17.3
34.6
52.0
69.3
37.5
74.9
112.7
150.2
43.3
86.6
129.9
173.2
21.7
43.3
65.0
86.6
17.3
34.6
52.0
69.3
37.5
74.9
112.7
150.2
43.3
86.6
129.9
173.2
21.7
43.3
65.0
86.6
17.3
34.6
52.0
69.3
MIN.
CIRCUIT
AMPACITY
(AMPS)
86.5
86.5
128.3
175.5
184.8
85.2
87.1
141.3
162.9
206.2
42.5
43.6
70.6
81.5
103.1
32.9
34.9
56.6
65.2
82.5
111.5
111.5
136.4
183.6
192.9
111.5
111.5
151.0
172.7
216.0
55.6
55.6
75.5
86.3
108.0
43.9
43.9
61.2
69.8
87.2
153.4
153.4
154.4
201.6
210.9
153.4
153.4
169.0
190.7
234.0
67.9
67.9
84.5
95.3
117.0
55.7
55.7
68.6
77.2
94.5
MAX. FUSE/
BRKR1
SIZE
(AMPS)
100
100
150
200
200
100
100
150
175
225
50
50
80
90
110
40
40
60
70
90
125
125
150
200
200
125
125
175
175
225
70
70
80
90
110
50
50
70
70
90
175
175
175
225
225
175
175
175
225
250
80
80
90
110
125
70
70
70
90
100
NOTE 1: HACR Type per NEC.
VOLTAGE LIMITATIONS
POWER SUPPLY
VOLTAGE
LIMITATIONS1
1.
42
208/230-3-60
460-3-60
575-3-60
VOLTAGE
MIN.
187
414
518
MAX.
253
506
630
NOMINAL VOLTAGE
208
240
480
600
ELECTRIC HEAT CORRECTION FACTORS
VOLTAGE
kW CAP. MULTIPLIER
208
1.00
230
0.92
460
0.92
575
0.92
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
MODEL
(TONNAGE)
VOLTAGE
RLA
EACH
LRA
EACH
OD FAN
MOTORS
FLA EACH
ID
BLOWER
MOTOR
FLA
CONV
OUTLET
AMPS
208
22.4
164
2.1
20.0
10.0
230
22.4
164
2.1
20.0
10.0
460
10.9
100
1.2
10.0
5.0
575
8.3
78
0.9
7.5
4.0
208
30.1
225
2.4
38.6
10.0
230
30.1
225
2.4
38.6
10.0
460
15.5
114
0.9
19.3
5.0
575
12.1
80
0.6
16.2
4.0
208
42.3
245
2.4
38.6
10.0
230
42.3
245
2/4
38.6
10.0
460
17.6
125
0.9
19.3
5.0
575
14.5
100
0.6
16.2
4.0
180
(15)
240
(20)
300
(25)
HEATER OPTION
MODEL
KW
STAGES
AMPS
None
E18
E36
E54
E72
None
E18
E36
E54
E72
None
E18
E36
E54
E72
None
E18
E36
E54
E72
None
E18
E36
E54
E72
None
E18
E36
E54
E72
None
E18
E36
E54
E72
None
E18
E36
E54
E72
None
E18
E36
E54
E72
None
E18
E36
E54
E72
None
E18
E36
E54
E72
None
E18
E36
E54
E72
13.5
27
40.6
54.1
18.0
36.0
54.0
72.0
18.0
36.0
54.0
72.0
18.0
36.0
54.0
72.0
13.5
27
40.6
54.1
18.0
36.0
54.0
72.0
18.0
36.0
54.0
72.0
18.0
36.0
54.0
72.0
13.5
27
40.6
54.1
18.0
36.0
54.0
72.0
18.0
36.0
54.0
72.0
18.0
36.0
54.0
72.0
1
2
2
2
1
2
2
2
1
2
2
2
1
2
2
2
1
2
2
2
1
2
2
2
1
2
2
2
1
2
2
2
1
2
2
2
1
2
2
2
1
2
2
2
1
2
2
2
37.5
74.9
112.7
150.2
43.3
86.6
129.9
173.2
21.7
43.3
65.0
86.6
17.3
34.6
52.0
69.3
37.5
74.9
112.7
150.2
43.3
86.6
129.9
173.2
21.7
43.3
65.0
86.6
17.3
34.6
52.0
69.3
37.5
74.9
112.7
150.2
43.3
86.6
129.9
173.2
21.7
43.3
65.0
86.6
17.3
34.6
52.0
69.3
MIN.
CIRCUIT
AMPACITY
(AMPS)
88.8
88.8
131.2
178.4
187.7
88.8
91.6
145.8
167.4
210.7
44.3
45.8
72.9
83.7
105.4
33.8
36.0
57.7
66.3
83.7
128.1
128.1
154.4
201.6
210.9
128.1
128.1
169.0
190.7
234.0
63.7
63.7
84.5
95.3
117.0
50.9
50.9
68.6
77.2
94.5
153.4
153.4
154.4
201.6
210.9
153.4
153.4
169.0
190.7
234.0
67.9
67.9
84.5
95.3
117.0
55.7
55.7
68.6
77.2
94.5
MAX. FUSE/
BRKR1
SIZE
(AMPS)
110
110
150
200
200
110
110
150
175
225
50
50
80
90
110
40
40
60
70
90
150
150
175
225
225
150
150
175
225
250
80
80
90
110
125
60
60
70
90
100
175
175
175
225
225
175
175
175
225
250
80
80
90
110
125
70
70
70
90
100
NOTE 1: HACR Type per NEC.
VOLTAGE LIMITATIONS
POWER SUPPLY
VOLTAGE
LIMITATIONS1
1.
208/230-3-60
460-3-60
575-3-60
VOLTAGE
MIN.
187
414
518
MAX.
253
506
630
NOMINAL VOLTAGE
208
240
480
600
ELECTRIC HEAT CORRECTION FACTORS
VOLTAGE
kW CAP. MULTIPLIER
208
1.00
230
0.92
460
0.92
575
0.92
Utilization Range “A” in accordance with ARI Standard 110.
Unitary Products Group
43
262292-YTG-C-0707
TABLE 31: WR ELECTRICAL DATA - LOW STATIC DRIVE MOTOR WITH POWERED CONVENIENCE OUTLET
COMPRESSORS
MODEL
(TONNAGE)
VOLTAGE
RLA
EACH
LRA
EACH
OD FAN
MOTORS
FLA EACH
ID
BLOWER
MOTOR
FLA
CONV
OUTLET
AMPS
208
30.1
225
2.4
20.0
10.0
230
30.1
225
2.4
20.0
10.0
460
15.5
114
0.9
10.0
5.0
575
12.1
80
0.6
7.5
4.0
208
42.3
245
2.4
20.0
10.0
230
42.3
245
2.4
20.0
10.0
460
17.6
125
0.9
10.0
5.0
575
14.5
100
0.6
7.5
4.0
240
(20)
300
(25)
HEATER OPTION
MODEL
KW
STAGES
AMPS
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
13.5
27.0
40.6
54.1
0.0
18.0
36.0
54.0
72.0
0.0
18.0
36.0
54.0
72.0
0.0
18.0
36.0
54.0
72.0
0.0
13.5
27.0
40.6
54.1
0.0
18.0
36.0
54.0
72.0
0.0
18.0
36.0
54.0
72.0
0.0
18.0
36.0
54.0
72.0
1
2
2
2
1
2
2
2
1
2
2
2
1
2
2
2
1
2
2
2
1
2
2
2
1
2
2
2
1
2
2
2
37.5
75.1
112.7
150.2
43.3
86.6
129.9
173.2
21.7
43.3
65.0
86.6
17.3
34.6
52.0
69.3
37.5
75.1
112.6
150.1
43.3
86.6
129.9
173.2
21.7
43.3
65.0
86.6
17.3
34.6
52.0
69.3
MIN.
CIRCUIT
AMPACITY
(AMPS)
107.3
107.3
131.2
178.4
187.7
107.3
107.3
145.8
167.4
210.7
53.5
53.5
72.9
83.7
105.4
41.1
41.1
57.7
66.3
83.7
134.8
134.8
134.8
178.4
187.7
134.8
134.8
145.8
167.4
210.7
58.2
58.2
72.9
83.7
105.4
46.5
46.5
57.7
66.3
83.7
MAX. FUSE/
BRKR1
SIZE
(AMPS)
125
125
150
200
200
125
125
150
175
225
60
60
80
90
110
50
50
60
70
90
175
175
175
200
200
175
175
175
175
225
70
70
80
90
110
60
60
60
70
90
NOTE 1: HACR Type per NEC.
VOLTAGE LIMITATIONS
POWER SUPPLY
VOLTAGE
LIMITATIONS1
1.
44
208/230-3-60
460-3-60
575-3-60
VOLTAGE
MIN.
187
414
518
MAX.
253
506
630
NOMINAL VOLTAGE
208
240
480
600
ELECTRIC HEAT CORRECTION FACTORS
VOLTAGE
kW CAP. MULTIPLIER
208
1.00
230
0.92
460
0.92
575
0.92
Utilization Range “A” in accordance with ARI Standard 110.
Unitary Products Group
262292-YTG-C-0707
TABLE 32: PHYSICAL DATA
MODELS
EVAPORATOR
COIL
CONDENSER FAN
(FOUR PER UNIT)
CONDENSER
COIL
REHEAT COIL
COMPRESSOR
(QTY. PER UNIT)
FILTERS
CHARGE
WR180
CENTRIFUGAL BLOWER (Dia. x Wd.)
FAN MOTOR HP
ROWS DEEP
FINS PER INCH
FACE AREA (Sq. Ft.)
PROPELLER DIA. (In.)
FAN MOTOR HP
NOM. CFM TOTAL
ROWS DEEP
FINS PER INCH
FACE AREA (Sq. Ft.)
ROWS DEEP
FINS PER INCH
FACE AREA (Sq. Ft.)
15x15
5/7.5
(Each)
(Each)
(Each)
24
1/3
4,000
SCROLL
QUANTITY PER UNIT (16” X 25” X 2”)
QUANTITY PER UNIT (16” X 20” X 2”)
TOTAL FACE AREA (Sq. Ft.)
SYSTEM No. 1
REFRIGERANT 22
(Lb./Oz.)
SYSTEM No. 2
COOLING ONLY
BASIC
UNIT
GAS / ELECTRIC
N24
N32
DOUBLE WALL
ECONOMIZER
ECONOMIZER WITH
POWER EXHAUST
MOTORIZED DAMPER
18 KW
36 KW
ELECTRIC
HEATER
54 KW
72 KW
HOT GAS BYPASS
SUPPLY FAN VFD
ROOF CURB
BAROMETRIC DAMPER
ECONOMIZER / MOTORIZED
DAMPER RAIN HOOD
ECONOMIZER / POWER
EXHAUST RAIN HOOD
WOOD SKID
ACCESSORIES
OPERATING
WEIGHTS
(LBS.)
WR240
WR300
18x15
7.5/10.0/15.0
7.5/15.0
6
13
20.52
30
3/4
5,000
2
20
63.8
2
13
17.2
2
OPTIONS
EVAPORATOR
BLOWER
24/0
23/0
2410
2610
2650
4
4
20
28/8
27/0
2710
2910
2950
260
160
28/0
26/4
2810
3010
3050
245
150
25
30
35
40
10
See Table 33
185
45
55
90
220
TABLE 33: SUPPLY FAN VFD WEIGHTS, IN LBS.
SUPPLY FAN MOTOR
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
230V
460V
575V
25
25
30
30
30
30
30
30
35
30
30
40
30
30
35
35
35
35
35
35
40
40
35
45
45
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
COMPARTMENT
ACCESS
DOT PLUG
(For pressure
drop reading)
BLOWER ACCESS
(Location of
Optional VFD)
COMPRESSOR ACCESS
180-19/32
52-5/8
GAS OR ELECTRIC
HEAT
ACCESS
COIL
GUARD
KIT
VENT AIR
OUTLET
HOODS
COMBUSTION
AIR INLET HOOD
21.00
(C) GAS
SUPPLY
ENTRY
9-3/4
CONDENSER
COILS
7-1/8
136-1/4
(A) CONTROL WIRING
ENTRY
92
6-3/8
5
DISCONNECT
SWITCH
LOCATION
46-5/8
11-1/2
CONTROL BOX
ACCESS
5-7/8
(B) POWER
WIRING
ENTRY
35
BOTTOM SUPPLY
AND RETURN
AIR OPENINGS
(See Note)
35-1/4
33
2-3/4
RETURN
AIR
SUPPLY
AIR
All dimensions are in inches. They are
subject to change without notice.
Certified dimensions will be provided
upon request.
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
12-1/2
46-5/8
(A) CONTROL WIRING
ENTRY
9-1/4
9-3/4
FIGURE 12:UNIT DIMENSIONS WR180, 240 & 300 (FRONT VIEW)
TABLE 34: UTILITIES ENTRY DATA
HOLE
A
B
OPENING SIZE
(DIA.)
1-1/8” KO
3/4” NPS (Fem.)
3-5/8” KO
3” NPS (Fem.)
C
2-3/8” KO
D
1-11/16” Hole
USED FOR
Control Wiring
Power Wiring
Side
Bottom
Side
Bottom
Gas Piping (Front)1
Gas Piping (Bottom)1,
2
1. One-inch gas piping NPT required.
2. Opening in the bottom of the unit can be located by the slice in
the insulation.
NOTE: All entry holes should be field sealed to prevent rain
water entry into the building.
46
Unitary Products Group
262292-YTG-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
Dimensions listed are for side
duct flange openings; see
Field Accessories for Side
Duct Flange Kit.
18-5/8"
1" NPT FEMALE
COND. DRAIN
CONNECTION
27-3/4"
RETURN AIR
ACCESS
5-1/8"
39-5/8"
REAR
VIEW
OUTDOOR AIR
COMPARTMENT
ACCESS
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
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.
2.
Connect ductwork to the flanges on those panels.
3.
Replace the side supply and return air compartment
panels.
Unitary Products Group
47
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
CLEARANCE
LOCATION
Front
36”
Rear
24” (Less Economizer)
49” (With Economizer)
Left Side (Filter Access)
24” (Less Economizer)
36” (With Economizer)3
Right Side (Cond. Coil)
36”
Below
Unit1
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.
The products of combustion must not be allowed to
accumulate within a confined space and recirculate.
0”
72” With 36” Maximum
Horizontal Overhang (For
Condenser Air Discharge)
Above Unit2
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 evaporator coil, or in the outdoor air compartment, prior to final installation.
SUPPLY AIR
COMPARTMENT
POWER EXHAUST
RAIN HOOD
(on Return Air Compartment)
• 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
RAIN HOOD
(on Outdoor Air 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”
REAR VIEW
92”
LH VIEW
DETAIL “Y”
UNIT WITH RAIN HOODS
FIGURE 14:UNIT DIMENSIONS WR180, 240 & 300 (RAINHOOD)
48
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
49
262292-YTG-C-0707
B
F
E
C
D
C
A
A
D
B
FIGURE 17:FOUR AND SIX POINT LOADS
TABLE 36: FOUR AND SIX POINT LOADS
50
4 Point Loads (lbs)
Unit Size
Operating
Weight
A
B
C
D
WR180 Gas
2900
495
924
965
516
WR240 Gas
3200
558
1042
1042
558
WR300 Gas
3300
575
1075
1075
575
WR180 Elec
2700
460
860
898
481
WR240 Elec
3000
523
977
977
523
WR300 Elec
3100
540
1010
1010
540
Unit Size
Operating
Weight
A
B
C
D
E
F
WR180 Gas
2900
330
344
494
643
616
473
WR240 Gas
3200
372
372
533
695
695
533
WR300 Gas
3300
383
383
550
717
717
550
WR180 Elec
2700
307
321
460
599
573
440
WR240 Elec
3000
349
349
500
651
651
500
WR300 Elec
3100
360
360
517
673
673
517
6 Point Loads (lbs)
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.
´;´:,'(*$6.(7,1*)25&85%
)5$0($1'$//'8&76833257685)$&(6
³
81,7%$6(
:22'1$,/(5
81,7%$6(5$,/6
´
³0,1$%29(),1,6+('522)
FIGURE 19:ROOF CURB DUCT OPENINGS DIMENSION
&85%)5$0(
&2817(5)/$6+,1*
&$1¶7675,3
,168/$7,21$1'522),1*0$7(5,$/
1.
The 2” space between the ducts allows for “jumping” an
existing roof joist.
2.
The 58-1/2” overall dimension of the ducts allows ductwork
penetration between roof joists that are spaced on 72”
centers.
,168/$7,21
522)'(&.$1'68332576758&785(
Unitary Products Group
FIGURE 20:CUT AWAY OF ROOF CURB
51
262292-YTG-C-0707
THERMOSTAT
TERMINALS
1
( RCB )
REHEAT
CONTROL BOARD
RC
RH
R
Y1
Y1
Y2
Y2
W1
W1
W2
W2
G
G
C
C
X1
OCC
X3
TERMINAL BLOCK
RH
2
X4
A1
HUM
1
A2
HUM
2
T
DEHUMIDISTAT 3
3
T
4
TO REMOTE SENSOR
2ET04701324 IF USED
1 Electronic programmable Thermostat 2ET0770010024
( includes subbase).
2 Terminals A1 and A2 provide a relay output to close the
outdoor economizer dampers when the thermostat
switches to the set-back position.
3
Dehumidistat closes on rise in humidity.
TYPICAL
THERMOSTAT
RC
R
RH
Y1
Y1
Y2
Y2
G
G
W1
W1
W2
W2
OCC
C
C
( RCB )
REHEAT
CONTROL
BOARD
TERMINAL
BLOCK
RH
1
2
DEHUMIDISTAT 1
3
4
HUM
1
Dehumidistat closes on rise in humidity.
TERMINAL BLOCK TB1
GROUND
LUG
FACTORY OR FIELD
SUPPLIED DISCONNECT
THREE
PHASE
POWER
SUPPLY
FIGURE 21:TYPICAL FIELD WIRING
52
Unitary Products Group
262292-YTG-C-0707
GUIDE SPECIFICATIONS
GENERAL
Units shall be manufactured by York International Unitary
Products Group in an ISO 9001 certified facility.
York's Sunline Magnum™ units are convertible single package
units. All models have dual independent refrigerant circuits for
efficient part load operation and maximum comfort control.
Although the units are primarily designed for curb mounting on
a roof, they can also be slab-mounted at ground level or set on
steel beams above a finished roof. Cooling only, cooling with
gas heat and cooling with electric heat models are available
with a wide variety of factory-mounted options and fieldinstalled accessories to make them suitable for almost every
application. All units are self-contained and assembled on full
perimeter base rails with holes in the four corners for overhead
rigging. Every unit is completely piped, wired, charged and
tested at the factory to simplify the field installation and to
provide years of dependable operation. All models (including
those with an economizer) are suitable for either bottom or
horizontal duct connections. Models with power exhaust are
suitable for bottom duct connections only. For bottom duct,
remove the sheet metal panels from the supply and return air
openings through the base of the unit. For horizontal duct,
replace the supply and return air panels on the rear of the unit
with a side duct flange accessory. All supply air blowers are
equipped with a belt drive that can be adjusted to meet the
exact requirements of the job.
Each unit shall have 4 condenser fan motors. A high 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.
Aluminized steel tubular heat exchangers carry an additional 9year 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.
return, and be available with factory installed options or field
installed accessories. The units shall be factory wired, piped,
charged with R-22 refrigerant and factory tested prior to
shipment. All unit wiring shall be both numbered and color
coded. All units shall be manufactured in a facility certified to
ISO 9001 standards and the cooling performance shall be rated
in accordance with DOE and ARI test procedures. Units shall
be ETL & CGA listed, classified to ANSIZ21.47 standards, UL
1995/CAN/CSA No. 236-M90 conditions.
UNIT CABINET
Unit cabinet shall be constructed of G90 galvanized steel, with
exterior surfaces coated with a non-chalking, powdered paint
finish, certified at 1000 hour salt spray test per ASTM-B117
standards. Indoor blower section shall be insulated with a
minimum 1/2" thick insulation, coated on the airside. Aluminum
foil faced insulation shall be used in the furnace compartment
and be fastened with ridged fasteners to prevent insulation from
entering the air stream. Cabinet panels shall be "large" size,
easily removable for servicing and maintenance. Full perimeter
base rails shall be provided to assure reliable transit of
equipment, overhead rigging and proper sealing on roof curb
applications. Disposable 2" filters shall be furnished and be
accessible through a removable access door, sealed airtight.
Units filter track shall be designed to accommodate either 1" or
2" filters. Fan performance measuring ports shall be provided
on the outside of the cabinet to allow accurate air
measurements of evaporator fan performance without removing
panels or creating air by-pass of the coils. Condensate pan
shall be internally sloped and conform to ASHRAE 62-89 selfdraining standards. Condensate connection shall be a minimum
of 1" I.D. female and be a ridged mount connection. Unit shall
incorporate a fixed outdoor air damper with an outdoor air
intake opening covered with a bird screen and a rain hood
painted to match the exterior of the unit.
INDOOR (EVAPORATOR) FAN ASSEMBLY
Fan shall be a belt drive assembly and include an adjustablepitch motor pulley. Job site selected (B.H.P.) brake horsepower
shall not exceed the motors nameplate horsepower rating, plus
the service factor. Units shall be designed not to operate above
service factor. Fan wheel shall be double-inlet type with
forward-curved blades, dynamically balanced to operate
smoothly throughout the entire range of operation. Airflow
design shall be constant air volume.
A variable air volume (VAV) option using a variable frequency
drive (VFD) is available for applications requiring a constant
supply duct static pressure. Units equipped for VAV shall be
controlled by a duct pressure transducer with a 0 - 5” WC
pressure range. The pressure transducer shall provide a 0 - 5
VDC output signal to a VAV control board which, in turn shall
provide a 2 - 10 VDC speed reference signal to the VFD. 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.
They shall have built-in field convertible duct connections for
down discharge supply/return or horizontal discharge supply/
Unitary Products Group
53
262292-YTG-C-0707
OUTDOOR (CONDENSER) FAN ASSEMBLY
c. Loss-of-charge/Low-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.
REFRIGERANT COMPONENTS
2. Freeze-protection thermostat, evaporator coil. If any of
the above safety devices trip, a LED (light-emitting
diode) indicator shall flash a diagnostic code that
indicates which safety switch has tripped.
d. Unit shall incorporate "AUTO RESET" compressor over
temperature, over current protection.
e. Unit shall operate with conventional thermostat designs
and have a low voltage terminal strip for easy hook-up.
Compressors:
a. Shall be Scroll compressors internally protected with
internal high-pressure relief and over temperature
protection.
b. Shall have internal spring isolation and sound muffling to
minimize vibration and noise, and be externally isolated
on a dedicated, independent mounting.
Coils:
a. Evaporator and condenser coils shall have aluminum
plate fins mechanically bonded to seamless internally
enhanced copper tubes with all joints brazed. Special
Phenolic coating shall be available as a factory option.
b. Evaporator and Condenser coils shall be of the direct
expansion, draw-thru, design.
Refrigerant Circuit and Refrigerant Safety Components shall
include:
a. Balance-port thermostatic expansion
independent circuit feed system.
1. High-pressure switch.
valve
with
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.
f. Unit control board shall have on-board diagnostics and
fault code display.
g. Standard controls shall include anti-short cycle and low
voltage protection, and permit cooling operation down to
0 °F.
h. Control board shall monitor each refrigerant safety switch
independently.
i. Control board shall retain last 5 fault codes in non volatile
memory, which will not be lost in the event of a power
loss.
GAS HEATING SECTION (WR***N MODELS)
Shall be designed with induced draft combustion with post
purge logic and energy saving direct spark ignition, redundant
main gas valve. Ventor wheel shall be constructed of stainless
steel for corrosion resistance. The heat exchanger shall be of
the tubular type, constructed of T1-40 aluminized steel for
corrosion resistance and allowing minimum mixed air entering
temperature of 25° F. Burners shall be of the in-shot type,
constructed of aluminum coated steel and contain air mixture
adjustments. All gas piping shall enter the unit cabinet at a
single location through either the side or curb, without any field
modifications. An integrated control board shall provide timed
control of evaporator fan functioning and burner ignition.
Heating section shall be provided with the following minimum
protection:
a. Primary and auxiliary high-temperature limit switches.
e. All models shall have two independent circuits.
b. Induced draft motor speed sensor.
f. Hot gas bypass option shall be factory-installed on
compressor #1 discharge line to provide cooling in lowload applications. HGBP shall be a standard feature on
VAV models and an optional feature on CV models.
c. Flame roll out switch (automatic reset).
d. Flame proving controls. Unit shall have two independent
stages of capacity.
ELECTRIC HEATING (WR***C/E MODELS)
UNIT CONTROLS
a. Unit shall be complete with self-contained low-voltage
control circuit protected by a resetable circuit breaker on
the 24-volt transformer side.
b. Unit shall incorporate a lockout circuit which provides
reset capability at the space thermostat or base unit,
should any of the following standard safety devices trip
and shut off compressor.
54
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).
Unitary Products Group
262292-YTG-C-0707
UNIT OPERATING CHARACTERISTICS
Unit shall be capable of starting and running at 125° F outdoor
temperature, exceeding maximum load criteria of ARI Standard
340/360. The compressor, with standard controls, shall be
capable of operation down to 25° F outdoor temperature.
Accessory low ambient kit shall be available for operation to 0°
F. Unit shall be provided with fan time delay to prevent cold air
delivery before heat exchanger warms up (Gas heat only).
ELECTRICAL REQUIREMENTS
All unit power wiring shall enter unit cabinet at a single factory
provided location and be capable of side or bottom entry, to
minimize roof penetrations and avoid unit field modifications.
Separate side and bottom openings shall be provided for the
control wiring.
STANDARD LIMITED WARRANTIES
•
Compressor 5 Years
•
Heat Exchanger 10 Years
•
Electric Heat Element 5 Years
•
Other Parts 1 Year
OPTIONAL OUTDOOR AIR (Shall be made available by
either/or):
• ELECTRONIC ENTHALPY AUTOMATIC ECONOMIZER
- Outdoor and return air dampers that are interlocked and
positioned by a fully-modulating, spring-return damper
actuator. The maximum leakage rate for the outdoor air
intake dampers shall not exceed 2% when dampers are
fully closed and operating against a pressure differential
of 0.5 IWG. A unit-mounted potentiometer shall be
provided to adjust the outdoor and return air damper
assembly to take in CFM of outdoor air to meet the
minimum ventilation requirement of the conditioned space
during normal operation. During economizer operation, a
mixed-air temperature control shall modulate the outdoor
and return air damper assembly to prevent the supply air
temperature from dropping below 55°F. Changeover from
compressor to economizer operation shall be provided by
an integral electronic enthalpy control that feeds input into
the basic module. The outdoor intake opening shall be
covered with a rain hood that matches the exterior of the
unit. Water eliminator/filters shall be provided.
Simultaneous economizer/compressor operation is also
possible. Dampers shall fully close on power loss.
• BAS-READY ECONOMIZER - Outdoor and return air
dampers that are interlocked and positioned by a fullymodulating, 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.
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 programmable set-point of the controller. Field-installed humidity sensors for either outdoor air or outdoor & return air streams
are available to provide free-cooling based on single-
Unitary Products Group
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 temperature (SAT) programmable set-point. With the use of a
field-installed indoor air quality sensor, the controller shall
provide Demand Ventilation by modulating the economizer dampers to allow more outside airflow upon detection of elevated indoor CO2 concentrations above a
programmable set-point. With an additional field-installed
outdoor air quality sensor, Differential Demand Ventilation
shall be provided.
The outdoor intake opening shall be covered with a rain
hood that matches the exterior of the unit. Water eliminator/filters shall be provided.
Simultaneous economizer/compressor operation is also
possible. Dampers shall fully close on power loss.
• MOTORIZED OUTDOOR AIR DAMPERS - Outdoor and
return air dampers that are interlocked and positioned by
a 2-position, spring-return damper actuator. The
maximum leakage rate for the outdoor air intake dampers
shall not exceed 2% when dampers are fully closed and
operating against a pressure differential of 0.5 IWG. A
unit-mounted potentiometer shall be provided to adjust
the outdoor and return air damper assembly to take in the
design CFM of outdoor air to meet the ventilation
requirements of the conditioned space during normal
operation. Whenever the indoor fan motor is energized,
the dampers open up to one of two pre-selected positions
- regardless of the outdoor air enthalpy. Dampers return to
the fully closed position when the indoor fan motor is deenergized. Dampers shall fully close on power loss.
OTHER PRE-ENGINEERED ACCESSORIES AVAILABLE
• ROOF CURB - 14" high, full perimeter curb with wood
nailer (shipped knocked-down).
• 100% BAROMETRIC RELIEF DAMPER - Contains a rain
hood, air inlet screen, exhaust damper and mounting
hardware. Used to relieve internal air pressure through
the unit.
• PROPANE CONVERSION KIT - Contains new orifices
and gas valve parts to convert from natural to L.P. gas.
One per unit required.
• HIGH ALTITUDE - NATURAL GAS - Contains orifices
required for applications between 2000 and 6000 feet
altitude.
• HIGH ALTITUDE - PROPANE GAS - Contains orifices
required for applications between 2000 and 6000 feet
altitude. Must be used with propane conversion kit.
• BURGLAR BARS - Designed to work with above roof
curbs, depending on unit model. Fits duct openings of
curb supply and return air openings.
• SIDE DUCT FLANGE - Supply and return air duct flanges
for side duct applications. Do not use on units with power
exhaust.
• HIGH STATIC DRIVE - May Include a belt, blower pulley,
motor pulley or a motor change to enhance blower
performance.
55
• WOOD SKID - Allows unit to be handled with 90" forks.
• ECONOMIZER/MOTORIZED DAMPER RAIN HOOD
(WRN/E/C30 only) - Contains all hood panels and the
hardware for assembling.
• ANTI-RECYCLE TIMER - Assures 5-minute off time
between compressor cycles.
• LOW AMBIENT KIT - Provides unit cooling operation
down to 0°F.
• COIL GUARD KIT - Guard for cooling coil.
•
•
•
•
•
• BAS READY ECONOMIZER ( 2-10 V.D.C. Actuator without a controller)
• 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.
• STAINLESS STEEL HEAT EXCHANGER
• STAINLESS STEEL DRAIN PAN
• TECHNICOAT PHENOLIC COATED CONDENSER AND
EVAPORATOR COIL
• ELECTRONIC SINGLE ENTHALPY ECONOMIZER
• DIRTY FILTER SWITCH
• DOUBLE WALL
• HIGH STATIC DRIVE
• 2" PLEATED FILTERS
• 4" THROW AWAY FILTERS
• DISCONNECT SWITCH
• SUPPLY AIR SMOKE DETECTOR
• RETURN AIR SMOKE DETECTOR
• LOW STATIC DRIVE (WR240 & WR300 only)
Subject to change without notice. Printed in U.S.A.
Copyright © 2007 by Unitary Products Group. All rights reserved.
Unitary
Products
Group
PHASE MONITOR
COIL GUARD
POWERED GFI CONVENIENCE OUTLET
NON-POWERED GFI CONVENIENCE OUTLET
BAS CONTROLS (Simplicity® INTELLI-Comfort™, CPC,
JOHNSON, HONEYWELL, NOVAR)
262292-YTG-C-0707
Supersedes: 262292-YTG-B-0107
5005
York
Drive
Norman
OK
73069
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