York Dm 180 User Manual

262259-YTG-B-0107  
®
DESCRIPTION  
YORK Sunline 2000™ units are convertible single package  
high efficiency rooftops. All models have independent dual  
refrigerant circuits for efficient part load operation. Although  
the units are primarily designed for curb mounting on a roof,  
they can also be slab-mounted at ground level or set on steel  
beams above a finished roof.  
TECHNICAL GUIDE  
All units include:  
SINGLE PACKAGE GAS/ELECTRIC UNITS  
AND SINGLE PACKAGE AIR  
CONDITIONERS  
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  
DM 180, 240 & 300  
Scroll compressors (25T model only)  
15, 20 & 25 NOMINAL TONS  
Two-stage heating provided by dual independent heat  
exchangers with aluminized steel tubes, redundant gas  
valves, spark ignition with induced draft logic  
Permanently lubricated motors  
Bottom or side air discharge configuration capability  
(field convertible)  
Belt Drive Blower Motor with high static drive option  
Constant supply air volume (CV) with optional variable  
air volume (VAV)  
Manufactured under the quality standards of ISO9001  
S implicity® Control Board  
Zero-25% fixed air damper with hood  
Copper tube/aluminum fin coils  
Hinged filter access and tooless latched doors  
Rigging holes in base rails for lifting  
Single point power connection  
Complete factory package - tested, charged and wired  
CSA agency approvals on all units  
WARRANTY  
One-year parts warranty  
A Five-year parts warranty on the compressors and  
electric heat elements  
Ten-year parts warranty on the gas-fired heat  
exchangers  
FOR DISTRIBUTION USE ONLY - NOT TO BE USED AT POINT OF RETAIL SALE  
 
262259-YTG-B-0107  
PRODUCT NOMENCLATURE  
15-25 Ton Sunline 2000™ Model Number Nomenclature  
D M 180 N24 A 2 A AA 1 0 1 2 4 A  
Product Category  
Product Style  
D = A/C, Single Pkg., R-22  
A = Style A  
Product Identifier  
M = 8.5-9.0 EER A/C  
Configuration Options (not required for all units)  
These four digits will not be assigned until a quote is requested, or an order placed.  
SS Drain Pan  
CPC Controller, DFS, APS  
Nominal Cooling Capacity  
Johnson Controller, DFS, APS  
Honeywell Controller, DFS, APS  
180 = 15 Ton  
240 = 20 Ton  
300 = 25 Ton  
Novar Controller, DFS, APS  
Simplicity IntelliComfort Controller  
Simplicity IntelliComfort Controller w/ModLinc  
Hot Gas Bypass (Standard on VAV, Optional on CV)  
Variable Air Volume (VFD) - Not Available with Factory Installed BAS Options  
Variable Air Volume (VFD With Manual Bypass) - Not Available with Factory Installed BAS Options  
Variable Air Volume (VFD-Ready for Customer Installed Drive)  
2" Pleated filters  
Heat Type and Nominal Heat Capacity  
C00 = Cooling Only. No field installed  
electric heat  
Gas Heat Options  
4" Pleated filters  
N24 = 240 MBH Output Aluminized Steel  
N32 = 320 MBH Output Aluminized Steel  
S24 = 240 MBH Output Stainless Steel  
S32 = 320 MBH Output Stainless Steel  
BAS Ready Unit with Belimo Economizer  
Double Wall Construction  
Heat Reclaim Coil Options (2 or 3 Row, 1-5/8" or 2-1/8" Stub Out) (WJ and WR models only)  
Any Combination of Additional Options that Don’t Have an Option Code Pre-assigned  
Electric Heat Options  
Product Generation  
E18 = 18 KW  
E36 = 36 KW  
E54 = 54 KW  
E72 = 72 KW  
1 = First Generation  
2 = Second Generation  
Additional Options  
Hinged Filter Door & Toolless Access Cabinet  
Airflow  
Standard Cabinet  
A = Std. Drive  
B = Std. Drive/Single Input Econo.  
C = Std. Drive/Single Input Econo./Power Exhaust  
(Downflow Only)  
D = Std. Drive/Motorized Damper  
N = Hi Static Drive  
AA = None  
AB = Phase Monitor  
BA = Hinged Filter Door & Toolless Access Panels  
BB = Phase Monitor, Hinged Filter Door & Toolless  
Access Panels  
AC = Coil Guard  
AD = Dirty Filter Switch  
BC = Coil Guard, Hinged Filter Door & Toolless  
Access Panels  
AE = Phase Monitor & Coil Guard  
AF = Phase Monitor & Dirty Filter Switch  
AG = Coil Guard & Dirty Filter Switch  
AH = Phase Monitor, Coil Guard & Dirty Filter Switch  
RC = Coil Guard & American Flag  
TA = Technicoat Condenser Coil  
TJ = Technicoat Evaporator Coil  
TS = Technicoat Evaporator & Condenser Coils  
P = Hi Static Drive/Single Input Econo.  
Q = Hi Static Drive/Single Input Econo./Power Exhaust  
(Downflow Only)  
BD = Dirty Filter Switch, Hinged Filter Door &  
Toolless Access Panels  
BE = Phase Monitor & Coil Guard, Hinged Filter  
Door & Toolless Access Panels  
R = Hi Static Drive/Motorized Damper  
BF = Phase Monitor & Dirty Filter Switch, Hinged  
Filter Door & Toolless Access Panels  
BG = Coil Guard & Dirty Filter Switch, Hinged Filter  
Door & Toolless Access Panels  
Voltage  
2 = 208/230-3-60  
4 = 460-3-60  
5 = 575-3-60  
BH = Phase Monitor, Coil Guard & Dirty Filter Switch,  
Hinged Filter Door & Toolless Access Panels  
ZZ = If desired option combination is not listed above, ZZ will be assigned and configuration options will be  
located in digits 15-18.  
Installation Options  
A = No Options Installed  
B = Option 1  
C = Option 2  
D = Options 1 & 2  
E = Option 3  
F = Option 4  
G = Options 1 & 3  
H = Options 1 & 4  
J = Options 1, 2 & 3  
K = Options 1, 2, & 4  
L = Options 1,3 & 4  
M = Options 1, 2, 3, & 4  
N = Options 2 & 3  
P = Options 2 & 4  
Q = Options 2, 3, & 4  
R = Options 3 & 4  
S = Option 5  
T = Options 1 & 5  
U = Options 1, 3, & 5  
V = Options 1, 4, & 5  
W = Options 1, 3, 4, & 5  
X = Options 3 & 5  
Y = Options 4 & 5  
Z = Options 3, 4 & 5  
Options  
1 = Disconnect  
2 = Non-Pwr'd Conv. Outlet  
3 = Smoke Detector S.A.  
4 = Smoke Detector R.A.  
5 = Pwr'd Conv. Outlet  
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262259-YTG-B-0107  
Low Ambient - An integrated low-ambient control  
allows all units to operate in the cooling mode down  
to 0ºF outdoor ambient without additional assis-  
tance. Optionally, the control board can be pro-  
grammed to lockout the compressors when the  
outdoor air temperature is low or when free cooling  
is available.  
FEATURES  
All models are available with a wide variety of factory-  
mounted options such as stainless steel heat exchangers,  
phase monitor, dirty filter switch, and coil guard to make them  
suitable for almost every application.  
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.  
Anti-Short Cycle Protection - To aid compressor  
life, an anti-short cycle delay is incorporated into the  
standard controls. Compressor reliability is further  
ensured by programmable minimum run times. For  
testing, the anti short cycle delay can be temporarily  
overridden with the push of a button.  
All 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.  
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 pro-  
grammable. 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.  
All models are available with these “factory mounted” outdoor  
air damper options:  
Single enthalpy economizer  
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 con-  
trol board will alarm on ignition failures, compressor  
lockouts and repeated limit switch trips.  
Single enthalpy economizer with power exhaust  
Motorized outdoor air damper  
A fixed outdoor air intake assembly will be shipped in the  
return air compartment of all units ordered without an econo-  
mizer 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.  
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.  
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 vol-  
ume (VAV) option using a variable frequency drive is avail-  
able for applications requiring a constant supply duct  
pressure. A differential pressure transducer is used to moni-  
tor supply duct static pressure and return a speed reference  
signal to the VFD to control the output of the indoor blower  
motor.  
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 compressors include scroll compressors and internal pres-  
sure 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.  
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.  
S implicity® Controls - S implicity® control boards have  
standardized a number of features previously available  
only as options or by utilizing additional controls.  
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  
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ELECTRIC HEATER LOCATION  
(OPTIONAL ELECTRIC/ELECTRIC UNITS)  
HIGH EFFICIENCY COMPRESSORS  
WITH CRANKCASE HEATERS  
20 GAUGE ALUMINIZED STEEL  
TUBULAR HEAT EXCHANGERS  
LONG LASTING  
POWDER PAINT FINISH  
COPPER TUBE/ALUMINUM FIN  
CONDENSER COILS  
LOW VOLTAGE RELAY BOARD  
AND TERMINAL STRIP  
ECONOMIZER HOOD  
ELECTRICAL DISCONNECT  
MOUNTING LOCATION  
(Field installed)  
KNOCKOUT FOR  
SIDE CONTROL WIRING ENTRY  
KNOCKOUT FOR  
SIDE POWER WIRING ENTRY SIDE  
2" DISPOSABLE  
FILTERS  
TERMINAL BLOCK  
(For Single Point Power Supply  
with Electric Heat)  
ELECTRIC\ELECTRIC UNITS  
OUTDOOR AIR OPENING  
FOR SLIDE-IN/PLUG-IN  
INTERNAL ECONOMIZER(OPTION)  
BOTTOM POWER & CONTROL  
WIRING ENTRY  
KNOCKOUTS FOR SIDE  
GAS SUPPLY ENTRY  
SIDE AND BOTTOM  
SUPPLY & RETURN AIR  
DUCT OPENINGS(SIDE X SIDE)  
HOLE FOR BOTTOM  
GAS SUPPLY ENTRY  
POWER VENTOR MOTOR  
WITH POST PURGE CYCLE  
1" NPTI  
CONDENSATE DRAIN  
GAS/ELECTRIC  
UNIT SHOWN  
BELT-DRIVE  
BLOWER MOTOR  
LOCATION OF VFD (Optional)  
FULL PERIMETER 14 GUAGE BASE  
RAILS WITH LIFTING HOLES  
LOCATION OF VFD Bypass (Optional)  
FIGURE 1 - UNIT CUTAWAY  
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.  
ble 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 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.  
The rainhood is painted to match the basic unit and must  
be field-assembled before installing.  
POWER EXHAUST - Our single economizer options are  
available with power exhaust. Whenever the outdoor air  
intake dampers are opened for free cooling, the exhaust  
fan will be energized to prevent the conditioned space  
from being over-pressurized during economizer operation.  
Electric Heat Operation - All electric heat models (fac-  
tory 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 pro-  
vide 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 exhaust fan, motor and controls are installed and  
wired at the factory. The rain hood must be assembled  
and installed in the field.  
The power exhaust option can only be used on bot-  
tom duct configurations.  
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.  
MOTORIZED OUTDOOR AIR INTAKE DAMPER -  
Includes a slide-in / plug-in damper assembly with a 2-  
position, spring return motor actuator which opens to a  
pre-set position whenever the supply air blower is oper-  
ating and will drive fully closed when the blower unit  
shuts down.  
BAS Controls - York’s Sunline™ series units offer factory  
mounted BAS controls such as S implicity® INTELLI-Com-  
fort™, Novar, Honeywell, Johnson, and CPC.  
The rain hood is painted to match the basic unit and  
must be field assembled before installing.  
FACTORY-INSTALLED OPTIONS  
SINGLE INPUT ELECTRONIC ENTHALPY ECONO-  
MIZERS - Includes a slide-in / plug-in damper assembly  
with fully modulating spring-return motor actuator capa-  
PHENOLIC COATED EVAPORATOR AND CON-  
DENSER COILS - Special coating process that utilizes  
Technicoat 10-1" processes. Coating is applied by total  
immersion of the complete coil for maximum protection.  
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262259-YTG-B-0107  
ELECTRIC HEATERS wired for single point power sup-  
ply. These nickel chromium heater elements are pro-  
vided with limit and automatic reset capability to prevent  
operation at excessive temperatures.  
you may order the unit with a “non-powered” conve-  
nience 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.  
VARIABLE AIR VOLUME (VAV) - A factory-installed  
variable frequency drive (VFD), mounted in the Blower  
Access compartment, is used to control the speed of the  
indoor blower motor in order to maintain a constant static  
pressure in the supply duct. A pressure transducer and  
VAV control board are mounted inside the control box.  
The drive comes completely wired and pre-programmed  
from the factory.  
BAS - Building Automation System Controls (avail-  
able on two-system cooling product only).  
S implicity® INTELLI-Comfort™ CONTROL - The York®  
S implicity® INTELLI-Comfort™ control is factory  
installed. It includes a supply air sensor, a return air sen-  
sor, 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™  
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 oper-  
ate 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 cus-  
tomer-installed BAS.  
using CO sensors. It uses an inside CO sensor to per-  
2
2
form Demand Ventilation. It can also use an Outside CO  
2
sensor to perform Differential Demand Ventilation. It  
uses a Patented Comfort Ventilation algorithm to provide  
comfortable ventilation air temperature. The patented  
economizer-loading algorithm will protect the equipment  
when harsh operating conditions exist. Humidity in the  
occupied space or return duct can be monitored and  
controlled via humidity sensors and the on-board con-  
nection for hot gas re-heat system. It uses the INTELLI-  
Start™ algorithm to maximize energy savings by recov-  
ering the building from the Unoccupied Setpoints to the  
Occupied Setpoints just in time for the Occupied Time  
Period to begin. The S implicity® INTELLI-Comfort™ bal-  
ances space temperature, ventilation air temperature,  
A ‘VFD-ready’ option provides the provisions for a cus-  
tomer-installed drive. The unit comes with a mounting  
bracket installed in the Blower Access compartment  
which may accommodate other vendor’s drives depend-  
ing 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........................ 10” H x 6” W x 7” D  
For 7.5 thru 15-hp motor applications ........ 13” H x 8” W x 8” D  
If the customer-installed drive will not fit in the allotted  
space, then it will have to be mounted within a NEMA-4  
enclosure for outside installation or inside the building on  
a perpendicular wall not subjected to excessive tempera-  
ture, vibration, humidity, dust, corrosive gas, explosive  
gas, etc.  
CO and humidity for ultimate comfort.  
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S implicity® INTELLI-Comfort™ with ModLINC CON-  
TROL - The York® S implicity® INTELLI-Comfort™ with  
ModLINC control is factory installed. It includes all the  
features of the INTELLI-Comfort™ control with an addi-  
tional control to translate communications from MOD-  
BUS to the BACnet MSTP protocol.  
A terminal block located in the control box is provided for  
field connection of the VFD controls.  
Novar® BAS CONTROL - The Novar® ETC-3 building  
automation system controller is factory installed.  
Includes supply air sensor, return air sensor, dirty filter  
indicator switch, and air proving switch.  
HOT GAS BYPASS - To allow for low cooling load oper-  
ation, 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 evapo-  
rator pressure. HGBP is standard on all units with VAV  
and optional with CV units.  
JOHNSON CONTROLS BAS CONTROL - The Johnson  
Control YK-UNT-1126 building automation system con-  
troller is factory installed. Includes supply air sensor,  
return air sensor, dirty filter indicator switch, and air prov-  
ing switch.  
FILTER OPTIONS - Standard units are shipped with 2”  
throw-away filters installed. 2” pleated and 4” pleated fil-  
ters are offered as a factory installed option.  
CPC BAS CONTROL - The Computer Process Controls  
Model 810-3060 ARTC Advanced Rooftop building auto-  
mation system controller is factory installed. Includes  
CONVENIENCE OUTLET - This 110 volt outlet can be  
“powered” by the unit with a stepdown transformer or  
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262259-YTG-B-0107  
supply air sensor, return air sensor, dirty filter indicator  
switch and air proving switch.  
ble of introducing up to 100% outdoor air with nominal  
1% leakage type dampers.  
HONEYWELL BAS CONTROL - The Honeywell  
W7750C building automation system controller is factory  
installed. Includes air supply sensor, return air sensor,  
dirty filter indicator switch, and air proving switch.  
The enthalpy system contains one sensor that monitors  
the outdoor air and determines when the air is cool  
enough and dry enough to provide free cooling.  
The rainhood is painted to match the basic unit and must  
be field-assembled before installing.  
SMOKE DETECTORS - (supply air & return air) The  
smoke detectors stop operation of the unit by interrupting  
power to the control board if smoke is detected within the  
air compartment.  
MOTORIZED OUTDOOR AIR INTAKE DAMPER -  
Includes a slide-in / plug-in damper assembly with a 2-  
position, spring return motor actuator which opens to  
some pre-set position whenever the supply air blower is  
operating and will drive fully closed when the blower unit  
shuts down.  
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.  
The rain hood is painted to match the basic unit and  
must be field assembled before installing.  
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.  
COIL GUARD - Customers can purchase a coil guard kit  
to protect the condenser coil from damage. This is not a  
hail guard kit.  
They're designed to fit inside the base rails of the unit  
and include both a wood nailing strip and duct hanger  
supports.  
STAINLESS STEEL HEAT EXCHANGER - For applica-  
tions in corrosive environments, this option provides a  
full stainless steel heat exchanger assembly.  
HIGH ALTITUDE NATURAL GAS - Burner orifices and  
pilot orifices are provided for proper furnace operation at  
altitudes up to 6,000 feet.  
STAINLESS STEEL DRAIN PAN- An optional rust-proof  
stainless steel drain pan is available to provide years of  
trouble-free operation in corrosive environments.  
PROPANE - Burner orifices, pilot orifices and gas valve  
parts are provided to convert a natural gas furnace to  
propane.  
PHASE MONITORS - Designed to prevent unit damage.  
The phase monitor will shut the unit down in an out-of-  
phase condition.  
HIGH ALTITUDE PROPANE - Burner orifices and pilot  
orifices are provided for proper furnace operation at alti-  
tudes up to 6,000 feet. This accessory supplements the  
basic propane conversion kit.  
HIGH SPEED DRIVE - Includes a belt and blower pulley  
upgrade to enhance blower performance.  
DIRTY FILTER SWITCH - This kit includes a differential  
pressure switch that energizes the fault light on the unit  
thermostat, indicating that there is an abnormally high  
pressure drop across the filters. Factory installed option  
or field installed accessory.  
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.  
HINGED FILTER DOOR/”TOOLESS” BLOWER AND  
ACCESS PANELS (not hinged) - This option allows for  
easy access and maintenance.  
BAROMETRIC RELIEF DAMPER - This damper acces-  
sory 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.  
NOTE:Knobs are shipped separately within the unit to  
prevent shipping damage. These must be field  
installed for tool-less operation.  
FIELD-INSTALLED ACCESSORIES  
SINGLE INPUT ELECTRONIC ENTHALPY ECONO-  
MIZERS - Includes a slide-in / plug-in damper assembly  
with fully modulating spring-return motor actuator capa-  
HIGH SPEED DRIVE - A smaller blower pulley and a  
shorter belt increase the speed of the supply air blower  
for applications with a higher CFM and/or static pressure  
requirements.  
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ENTHALPY ACCESSORY CONTROL KIT - This kit  
contains the required components to convert a single  
enthalpy economizer to dual enthalpy.  
WOOD SKID - Allows unit to be handled with 90” forks.  
CO SENSOR - Senses CO levels and automatically  
2
2
overrides the economizer when levels rise above the  
present limits.  
BURGLAR BARS - Mount in the supply and return  
openings to prevent entry into the duct work.  
COIL GUARD - Customers can purchase a coil guard kit  
to protect the condenser coil from damage. This is not a  
hail guard kit.  
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.  
PHASE MONITORS - Designed to prevent unit damage.  
The phase monitor will shut the unit down in an out-of-  
phase condition.  
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1
TABLE 1: SOUND POWER RATING  
-12  
SOUND POWER (db 10  
Watts)  
ESP  
IWG  
BLOWER  
UNIT  
SIZE  
Octave Band Centerline Frequency (Hz)  
dB(A)  
@
10Ft.2  
CFM  
SWL  
dB(A)  
RPM  
BHP  
63  
125  
250  
500  
1,000  
2,000  
4,000  
8,000  
180  
240  
300  
6,000  
8,000  
1.00  
1.00  
1.30  
1,080  
1,120  
1160  
4.60  
6.65  
12.5  
99  
99  
89  
92  
98  
82  
85  
91  
84  
87  
93  
77  
80  
86  
72  
75  
81  
67  
70  
76  
89  
92  
98  
56  
102  
108  
102  
108  
59  
10,000  
65  
1. These values have been accessed using a model of sound propagation from a point source into the hemispheric\free field. The  
dBA values provided are to be used for reference only. Calculation of dBA values cover matters of system design and the fan  
manufacture has no way of knowing the details of each system. This constitutes and expectation to any specification or guarantee  
requiring a dBA value or sound data in any other form than sound power level ratings.  
2. At a distance of 10 feet from the blower.  
1
TABLE 3: GAS HEAT RATIINGS  
TABLE 2: CAPACITY RATINGS - (ARI 360)  
MODEL  
MBH INPUT  
MBH OUTPUT  
EER2  
IPLV3  
MODEL  
MBH  
300  
400  
300  
400  
300  
400  
240  
320  
240  
320  
240  
320  
DM180N/S24  
DM180N/S32  
COOLING ONLY  
DM180C/E00  
DM240C/E00  
DM300C/E00  
176  
234  
272  
8.7  
8.6  
8.5  
9.2  
8.05  
9.2  
DM240N/S24  
DM240N/S32  
DM300N/S24  
DM300N/S32  
COOLING WITH GAS HEAT  
DM180N/S  
176  
232  
272  
8.5  
8.5  
8.5  
9.0  
8.05  
9.0  
DM240N/S  
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.  
DM300N/S  
COOLING WITH ELECTRIC HEAT  
DM180E18  
DM180E36  
DM180E54  
DM180E72  
DM240E18  
DM240E36  
DM240E54  
DM240E72  
DM300E18  
DM300E36  
DM300E54  
DM300E72  
176  
176  
174  
174  
234  
234  
232  
232  
272  
272  
270  
270  
8.7  
8.6  
8.5  
8.5  
8.5  
8.5  
8.5  
8.5  
8.5  
8.5  
8.5  
8.5  
9.2  
9.1  
8.7  
8.7  
8.05  
8.05  
8.05  
8.05  
9.1  
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.  
9.1  
If there are VAV boxes present in the duct sys-  
tem, the boxes must be driven to the full-open  
position using a customer-supplied power  
source to assure adequate airflow across elec-  
tric heating elements or gas heat exchanger  
tubes.  
9.0  
9.0  
1. Certified in accordance with the Unitary Large Equip-  
ment certification program which is based on ARI Stan-  
dard 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  
9
     
262259-YTG-B-0107  
TABLE 4: DM 180 COOLING CAPACITIES (15 TON)  
TEMPERATURE OF AIR ON CONDENSER COIL  
AIR ON  
EVAPORATOR  
COIL  
75°F  
85°F  
SENSIBLE CAPACITY, MBH  
ENTERING DRY BULB, °F  
SENSIBLE CAPACITY, MBH  
ENTERING DRY BULB, °F  
TOTAL POWER  
TOTAL  
POWER  
1
2
1
2
CAP.  
INPUT  
KW  
CAP.  
INPUT  
WB  
MBH  
MBH  
KW  
CFM  
°F  
90  
85  
80  
75  
70  
65  
90  
85  
80  
75  
70  
65  
77  
72  
223.2  
206.6  
190.0  
171.6  
171.6  
232.6  
215.3  
198.0  
178.8  
178.8  
242.0  
224.0  
206.0  
186.0  
186.0  
230.0  
211.5  
191.0  
191.0  
236.0  
217.0  
195.9  
195.9  
16.6  
15.9  
15.2  
14.8  
14.7  
16.8  
16.1  
15.4  
15.0  
14.9  
17.0  
16.3  
15.6  
15.2  
15.1  
16.5  
15.8  
15.4  
15.3  
16.7  
16.0  
15.6  
15.5  
116.8 95.5  
74.1  
-
-
-
-
-
-
212.0  
195.5  
179.0  
161.6  
161.6  
221.5  
204.3  
187.0  
168.8  
168.8  
231.0  
213.0  
195.0  
176.0  
176.0  
217.9  
199.5  
180.1  
180.1  
222.8  
204.0  
184.1  
184.1  
17.5  
16.8  
16.1  
15.6  
15.5  
17.7  
17.0  
16.3  
15.8  
15.7  
17.9  
17.2  
16.5  
16.0  
15.9  
17.4  
16.7  
16.2  
16.1  
17.6  
16.9  
16.4  
16.3  
110.9 89.5  
68.2  
-
-
-
-
-
-
143.3 121.9 100.5 79.2  
137.8 116.5 95.1 73.7  
4500  
5250  
6000  
67  
62  
57  
77  
72  
67  
62  
57  
77  
72  
67  
62  
57  
72  
67  
62  
57  
72  
67  
62  
57  
169.8 148.4 127.0 105.6 84.2  
164.8 143.4 122.0 100.6 79.2  
171.6 171.6 152.5 131.1 109.8 88.4  
171.6 171.6 158.4 137.0 115.7 94.3  
161.6 161.6 144.7 123.3 101.9 80.6  
161.6 161.6 148.1 126.7 105.3 83.9  
131.7 105.8 80.5  
-
-
-
-
-
-
129.3 99.8  
74.6  
-
-
-
-
-
-
159.8 134.5 109.3 84.0  
154.6 129.3 104.0 78.8  
187.9 163.3 138.0 112.7 87.5  
179.9 158.8 133.5 108.2 83.0  
178.8 178.8 165.8 140.5 115.2 89.9  
178.8 178.8 172.2 146.9 121.7 96.4  
168.8 168.8 158.4 133.1 107.8 82.5  
168.8 168.8 162.0 136.8 111.5 86.2  
146.6 116.2 87.0  
-
-
-
-
-
-
147.6 110.2 81.0  
-
-
-
-
-
-
176.3 147.2 118.0 88.8  
171.3 142.2 113.0 83.8  
206.0 178.2 149.0 119.8 90.7  
195.0 174.2 145.0 115.8 86.7  
186.0 186.0 179.0 149.8 120.7 91.5  
186.0 186.0 186.0 156.8 127.7 98.5  
176.0 176.0 172.0 142.8 113.7 84.5  
176.0 176.0 176.0 146.8 117.7 88.5  
195.9 162.7 129.5 96.2  
-
-
-
189.6 156.3 123.1 89.9  
-
-
-
211.5 197.6 163.5 130.3 97.1  
199.5 189.1 158.0 124.8 91.6  
6750  
7500  
191.0 191.0 187.5 154.3 121.0 87.8  
191.0 191.0 191.0 157.8 124.5 91.3  
180.1 180.1 178.1 144.9 111.6 78.4  
180.1 180.1 180.1 146.9 113.6 80.4  
215.4 178.2 140.9 103.6  
-
-
-
207.8 170.5 133.3 96.0  
-
-
-
217.0 217.0 178.0 140.7 103.5  
204.0 204.0 171.0 133.7 96.5  
195.9 195.9 195.9 158.7 121.4 84.2  
195.9 195.9 195.9 158.7 121.4 84.2  
184.1 184.1 184.1 146.9 109.6 72.3  
184.1 184.1 184.1 146.9 109.6 72.3  
TEMPERATURE OF AIR ON CONDENSER COIL  
AIR ON  
EVAPORATOR  
COIL  
95°F  
105°F  
SENSIBLE CAPACITY, MBH  
ENTERING DRY BULB, °F  
SENSIBLE CAPACITY, MBH  
ENTERING DRY BULB, °F  
TOTAL POWER  
TOTAL  
POWER  
1
2
1
2
CAP.  
INPUT  
KW  
CAP.  
INPUT  
WB  
MBH  
MBH  
KW  
CFM  
°F  
90  
85  
80  
75  
70  
65  
90  
85  
80  
75  
70  
65  
77  
72  
200.9  
184.4  
168.0  
151.6  
151.6  
210.4  
193.2  
176.0  
158.8  
158.8  
220.0  
202.0  
184.0  
166.0  
166.0  
205.8  
187.5  
169.2  
169.2  
209.7  
191.0  
172.3  
172.3  
18.4  
17.7  
17.0  
16.4  
16.3  
18.6  
17.9  
17.2  
16.6  
16.5  
18.8  
18.1  
17.4  
16.8  
16.7  
18.3  
17.6  
17.0  
16.9  
18.5  
17.8  
17.2  
17.1  
105.0 83.6  
62.2  
-
-
-
-
188.8  
173.2  
157.5  
143.7  
143.7  
196.9  
180.6  
164.3  
149.9  
149.9  
205.0  
188.0  
171.0  
156.0  
156.0  
192.1  
174.8  
159.4  
159.4  
196.2  
178.5  
162.9  
162.9  
19.4  
18.6  
17.8  
17.3  
17.3  
19.6  
18.8  
18.0  
17.4  
17.4  
19.8  
19.0  
18.2  
17.6  
17.6  
19.2  
18.4  
17.8  
17.8  
19.4  
18.6  
18.0  
18.0  
101.7 80.3  
58.9  
-
-
-
-
132.4 111.0 89.6  
68.2  
-
128.2 106.8 85.5 64.1  
153.4 133.4 112.0 90.6  
-
4500  
5250  
6000  
67  
62  
57  
77  
72  
67  
62  
57  
77  
72  
67  
62  
57  
72  
67  
62  
57  
72  
67  
62  
57  
159.8 138.4 117.0 95.6  
74.2  
-
69.2  
-
151.6 151.6 136.9 115.5 94.1  
151.6 151.6 137.7 116.4 95.0  
72.8  
143.7 143.7 129.0 107.6 86.2  
143.7 143.7 129.4 108.0 86.7  
64.9  
73.6  
65.3  
126.8 93.9  
68.6  
-
-
-
-
-
-
126.7 90.3  
65.0  
-
-
-
-
149.4 124.1 98.8  
73.5  
144.8 119.5 94.2 69.0  
162.2 148.7 123.5 98.2  
-
171.9 154.3 129.0 103.7 78.5  
73.0  
-
158.8 158.8 151.0 125.7 100.4 75.1  
158.8 158.8 151.9 126.6 101.3 76.1  
149.9 149.9 142.3 117.0 91.7  
149.9 149.9 142.7 117.4 92.2  
66.4  
66.9  
148.6 104.2 75.0  
-
-
-
-
-
-
151.6 100.2 71.0  
-
-
-
-
166.3 137.2 108.0 78.8  
161.3 132.2 103.0 73.8  
-
-
184.0 170.2 141.0 111.8 82.7  
171.0 164.1 135.0 105.8 76.7  
156.0 156.0 155.5 126.3 97.2  
156.0 156.0 156.0 126.8 97.7  
166.0 166.0 165.0 135.8 106.7 77.5  
166.0 166.0 166.0 136.8 107.7 78.5  
68.0  
68.5  
-
183.2 150.0 116.8 83.6  
-
-
-
176.4 145.4 112.2 78.9  
-
187.5 180.6 152.5 119.3 86.1  
174.8 171.3 147.0 113.8 80.6  
159.4 159.4 159.2 126.0 92.8  
159.4 159.4 159.4 126.2 93.0  
-
6750  
7500  
169.2 169.2 168.7 135.4 102.2 69.0  
169.2 169.2 169.2 135.9 102.7 69.5  
59.5  
59.8  
-
200.1 162.9 125.6 88.4  
-
-
191.5 158.6 121.3 84.0  
-
191.0 191.0 164.0 126.7 89.5  
172.3 172.3 172.3 135.1 97.8  
172.3 172.3 172.3 135.1 97.8  
-
178.5 178.5 159.0 121.7 84.5  
162.9 162.9 162.9 125.6 88.3  
162.9 162.9 162.9 125.6 88.3  
-
60.5  
60.5  
51.1  
51.1  
10  
Unitary Products Group  
262259-YTG-B-0107  
TABLE 4: DM 180 COOLING CAPACITIES (15 TON) (CONTINUED)  
TEMPERATURE OF AIR ON CONDENSER COIL  
AIR ON  
EVAPORATOR  
115°F  
SENSIBLE CAPACITY, MBH  
COIL  
TOTAL POWER  
ENTERING DRY BULB, °F  
1
2
CAP.  
INPUT  
KW  
WB  
°F  
MBH  
CFM  
90  
85  
80  
75  
70  
65  
77  
72  
67  
62  
57  
77  
72  
67  
62  
57  
77  
72  
67  
62  
57  
72  
67  
62  
57  
72  
67  
62  
57  
176.8  
161.9  
147.0  
135.8  
135.8  
183.4  
167.9  
152.5  
140.9  
140.9  
190.0  
174.0  
158.0  
146.0  
146.0  
178.4  
162.0  
149.7  
149.7  
182.8  
166.0  
153.4  
153.4  
20.4  
19.5  
18.6  
18.1  
18.2  
20.5  
19.6  
18.8  
18.3  
18.4  
20.7  
19.8  
18.9  
18.4  
18.5  
20.1  
19.2  
18.6  
18.7  
20.3  
19.4  
18.9  
19.0  
98.3 77.0  
55.6  
-
-
-
-
124.1 102.7 81.3 59.9  
147.0 128.4 107.0 85.6  
135.8 135.8 121.1 99.7  
135.8 135.8 121.1 99.7  
-
4500  
64.2  
78.3  
78.3  
-
-
56.9  
56.9  
126.5 86.6  
61.3  
-
-
140.2 114.9 89.6 64.4  
152.5 143.2 118.0 92.7  
-
-
5250  
6000  
67.5  
-
140.9 140.9 133.6 108.3 83.0  
140.9 140.9 133.6 108.3 83.0  
57.7  
57.7  
154.6 96.3  
67.0  
-
-
-
-
156.3 127.2 98.0 68.8  
158.0 158.0 129.0 99.8  
-
-
70.7  
146.0 146.0 146.0 116.8 87.7  
146.0 146.0 146.0 116.8 87.7  
58.5  
58.5  
-
169.6 140.7 107.5 74.3  
-
162.0 162.0 141.5 108.3 75.1  
149.7 149.7 149.7 116.5 83.3  
149.7 149.7 149.7 116.5 83.3  
-
6750  
7500  
50.1  
50.1  
-
182.8 154.3 117.0 79.7  
-
166.0 166.0 154.0 116.7 79.5  
153.4 153.4 153.4 116.1 78.9  
153.4 153.4 153.4 116.1 78.9  
-
41.6  
41.6  
1. These capacities are gross ratings. For net capacity, deduct the air blower motor, MBH = 3.415 x KW. Refer to the appropriate Blower Perfor-  
mance Table for the KW of the supply air blower motor.  
2. These ratings include the condenser fan motors (Total 1.5 KW) and the compressor motors but not the supply air blower motor.  
Nominal Rating  
Unitary Products Group  
11  
262259-YTG-B-0107  
TABLE 5: DM 240 COOLING CAPACITIES (20 TON)  
TEMPERATURE OF AIR ON CONDENSER COIL  
AIR ON  
EVAPORATOR  
COIL  
75°F  
85°F  
SENSIBLE CAPACITY, MBH  
ENTERING DRY BULB, °F  
SENSIBLE CAPACITY, MBH  
ENTERING DRY BULB, °F  
TOTAL POWER  
TOTAL  
POWER  
1
2
1
2
CAP.  
INPUT  
KW  
CAP.  
INPUT  
WB  
MBH  
MBH  
KW  
CFM  
°F  
90  
85  
80  
75  
70  
65  
90  
85  
80  
75  
70  
65  
77  
72  
322.5  
291.2  
260.0  
225.8  
225.8  
331.2  
299.1  
267.0  
231.9  
231.9  
340.0  
307.0  
274.0  
238.0  
238.0  
313.5  
279.8  
243.0  
243.0  
320.0  
285.5  
248.0  
248.0  
22.3  
21.6  
20.9  
20.3  
19.9  
22.3  
21.6  
20.9  
20.3  
19.9  
22.3  
21.6  
20.9  
20.3  
19.9  
21.9  
21.2  
20.6  
20.2  
22.2  
21.5  
20.9  
20.5  
159.6 131.1 102.6  
-
-
-
-
-
-
298.6  
272.3  
246.0  
213.1  
213.1  
308.3  
281.1  
254.0  
220.1  
220.1  
318.0  
290.0  
262.0  
227.0  
227.0  
297.7  
269.0  
233.1  
233.1  
305.5  
276.0  
239.1  
239.1  
23.9  
22.9  
21.9  
21.3  
20.8  
24.0  
23.0  
22.0  
21.4  
20.9  
24.1  
23.1  
22.1  
21.5  
21.0  
23.5  
22.5  
21.8  
21.3  
23.8  
22.8  
22.2  
21.7  
154.3 125.8 97.3  
-
-
-
-
-
-
194.3 165.8 137.3 108.8  
188.7 160.1 131.6 103.1  
6000  
7000  
8000  
67  
62  
57  
77  
72  
67  
62  
57  
77  
72  
67  
62  
57  
72  
67  
62  
57  
72  
67  
62  
57  
229.0 200.5 172.0 143.5 115.0  
223.0 194.5 166.0 137.5 109.0  
225.8 225.8 192.7 164.2 135.7 107.2  
225.8 225.8 194.2 165.7 137.2 108.7  
213.1 213.1 185.3 156.8 128.3 99.7  
213.1 213.1 190.3 161.8 133.3 104.8  
186.6 147.0 113.3  
-
-
-
-
-
-
180.9 140.3 106.6  
-
-
-
-
-
-
219.0 185.3 151.6 118.0  
211.7 178.0 144.3 110.6  
251.5 223.7 190.0 156.3 122.6  
242.5 215.7 182.0 148.3 114.6  
231.9 231.9 212.8 179.2 145.5 111.8  
231.9 231.9 214.6 180.9 147.2 113.5  
220.1 220.1 203.1 169.4 135.7 102.1  
220.1 220.1 208.7 175.0 141.3 107.6  
213.5 162.9 124.0  
-
-
-
-
-
-
207.5 154.9 116.0  
-
-
-
-
-
-
243.8 204.9 166.0 127.1  
234.8 195.9 157.0 118.1  
274.0 246.9 208.0 169.1 130.2  
262.0 236.9 198.0 159.1 120.2  
238.0 238.0 233.0 194.1 155.2 116.4  
238.0 238.0 235.0 196.1 157.2 118.4  
227.0 227.0 221.0 182.1 143.2 104.4  
227.0 227.0 227.0 188.1 149.2 110.4  
273.3 229.1 184.8 140.5  
-
-
-
264.6 220.3 176.0 131.8  
-
-
-
279.8 266.2 231.5 187.2 142.9  
269.0 256.4 222.0 177.7 133.4  
9000  
243.0 243.0 240.5 196.2 151.9 107.7  
243.0 243.0 241.5 197.2 152.9 108.7  
233.1 233.1 230.1 185.8 141.5 97.2  
233.1 233.1 233.1 188.8 144.5 100.2  
302.9 253.2 203.5 153.9  
-
-
-
294.4 244.7 195.1 145.4  
-
-
-
285.5 285.5 255.0 205.3 155.6  
276.0 276.0 246.0 196.3 146.6  
10000  
248.0 248.0 248.0 198.3 148.6 99.0  
248.0 248.0 248.0 198.3 148.6 99.0  
239.1 239.1 239.1 189.4 139.8 90.1  
239.1 239.1 239.1 189.4 139.8 90.1  
TEMPERATURE OF AIR ON CONDENSER COIL  
AIR ON  
EVAPORATOR  
COIL  
95°F  
105°F  
SENSIBLE CAPACITY, MBH  
ENTERING DRY BULB, °F  
SENSIBLE CAPACITY, MBH  
ENTERING DRY BULB, °F  
TOTAL POWER  
TOTAL  
POWER  
1
2
1
2
CAP.  
INPUT  
KW  
CAP.  
INPUT  
WB  
MBH  
MBH  
KW  
CFM  
°F  
90  
85  
80  
75  
70  
65  
90  
85  
80  
75  
70  
65  
77  
72  
274.7  
253.3  
232.0  
200.4  
200.4  
285.3  
263.2  
241.0  
208.2  
208.2  
296.0  
273.0  
250.0  
216.0  
216.0  
282.0  
258.3  
223.1  
223.1  
291.0  
266.5  
230.3  
230.3  
25.5  
24.2  
22.9  
22.3  
21.7  
25.7  
24.4  
23.1  
22.5  
21.9  
25.9  
24.6  
23.3  
22.7  
22.1  
25.0  
23.7  
23.1  
22.5  
25.4  
24.1  
23.5  
22.9  
148.9 120.4 91.9  
-
-
-
-
-
-
255.9  
236.4  
217.0  
192.0  
192.0  
266.2  
246.0  
225.8  
199.8  
199.8  
276.5  
255.5  
234.5  
207.5  
207.5  
261.2  
239.8  
212.1  
212.1  
267.0  
245.0  
216.7  
216.7  
27.0  
25.6  
24.2  
23.5  
23.0  
27.1  
25.7  
24.3  
23.6  
23.1  
27.3  
25.9  
24.5  
23.8  
23.2  
26.2  
24.8  
24.1  
23.6  
26.6  
25.2  
24.5  
23.9  
142.4 113.9 85.4  
-
-
-
-
-
-
183.0 154.5 126.0 97.4  
177.2 148.7 120.2 91.7  
6000  
7000  
8000  
67  
62  
57  
77  
72  
67  
62  
57  
77  
72  
67  
62  
57  
72  
67  
62  
57  
72  
67  
62  
57  
217.0 188.5 160.0 131.5 103.0  
209.5 183.5 155.0 126.5 98.0  
200.4 200.4 177.9 149.4 120.8 92.3  
200.4 200.4 186.4 157.9 129.4 100.8  
192.0 192.0 172.2 143.7 115.1 86.6  
192.0 192.0 179.5 151.0 122.4 93.9  
175.2 133.7 100.0  
-
-
-
-
-
-
171.7 126.2 92.5  
-
-
-
-
-
-
204.4 170.7 137.0 103.3  
197.5 163.8 130.1 96.4  
233.5 207.7 174.0 140.3 106.6  
222.0 201.4 167.8 134.1 100.4  
208.2 208.2 193.4 159.7 126.0 92.3  
208.2 208.2 202.7 169.0 135.3 101.6  
199.8 199.8 186.3 152.6 118.9 85.2  
199.8 199.8 194.2 160.5 126.8 93.1  
201.5 146.9 108.0  
-
-
-
-
-
-
201.0 138.4 99.5  
-
-
-
-
-
-
225.8 186.9 148.0 109.1  
217.8 178.9 140.0 101.1  
250.0 226.9 188.0 149.1 110.2  
234.5 219.4 180.5 141.6 102.7  
216.0 216.0 209.0 170.1 131.2 92.4  
216.0 216.0 219.0 180.1 141.2 102.4  
207.5 207.5 200.5 161.6 122.7 83.9  
207.5 207.5 209.0 170.1 131.2 92.4  
255.8 211.6 167.3 123.0  
-
-
-
241.1 201.2 156.9 112.6  
-
-
-
258.3 246.7 212.5 168.2 123.9  
239.8 232.2 202.3 158.0 113.7  
9000  
223.1 223.1 219.6 175.3 131.1 86.8  
223.1 223.1 224.6 180.3 136.1 91.8  
212.1 212.1 208.6 164.3 120.0 75.7  
212.1 212.1 212.8 168.6 124.3 80.0  
285.9 236.3 186.6 136.9  
-
-
-
264.4 223.5 173.8 124.1  
-
-
-
266.5 266.5 237.0 187.3 137.6  
245.0 245.0 224.0 174.3 124.6  
10000  
230.3 230.3 230.3 180.6 130.9 81.2  
230.3 230.3 230.3 180.6 130.9 81.2  
216.7 216.7 216.7 167.0 117.3 67.6  
216.7 216.7 216.7 167.0 117.3 67.6  
12  
Unitary Products Group  
262259-YTG-B-0107  
TABLE 5: DM 240 COOLING CAPACITIES (20 TON) (CONTINUED)  
TEMPERATURE OF AIR ON CONDENSER COIL  
AIR ON  
EVAPORATOR  
115°F  
SENSIBLE CAPACITY, MBH  
COIL  
TOTAL POWER  
ENTERING DRY BULB, °F  
1
2
CAP.  
INPUT  
KW  
WB  
°F  
MBH  
CFM  
90  
85  
80  
75  
70  
65  
77  
72  
67  
62  
57  
77  
72  
67  
62  
57  
77  
72  
67  
62  
57  
72  
67  
62  
57  
72  
67  
62  
57  
237.1  
219.5  
202.0  
183.6  
183.6  
247.0  
228.8  
210.5  
191.3  
191.3  
257.0  
238.0  
219.0  
199.0  
199.0  
240.4  
221.3  
201.0  
201.0  
242.9  
223.5  
203.1  
203.1  
28.5  
27.0  
25.5  
24.7  
24.2  
28.5  
27.0  
25.6  
24.8  
24.3  
28.6  
27.1  
25.6  
24.8  
24.3  
27.5  
26.0  
25.1  
24.6  
27.8  
26.3  
25.5  
25.0  
135.9 107.4 78.9  
-
-
-
-
-
-
171.5 143.0 114.5 85.9  
6000  
202.0 178.5 150.0 121.5 93.0  
183.6 183.6 166.5 138.0 109.4 80.9  
183.6 183.6 172.5 144.0 115.5 87.0  
168.2 118.6 85.0  
-
-
-
-
-
-
190.6 156.9 123.2 89.5  
7000  
8000  
210.5 195.2 161.5 127.8 94.1  
191.3 191.3 179.2 145.5 111.8 78.1  
191.3 191.3 185.8 152.1 118.4 84.7  
200.5 129.9 91.0  
-
-
-
-
-
-
209.8 170.9 132.0 93.1  
219.0 211.9 173.0 134.1 95.2  
199.0 199.0 192.0 153.1 114.2 75.4  
199.0 199.0 199.0 160.1 121.2 82.4  
226.3 190.8 146.5 102.2  
-
-
-
221.3 217.7 192.0 147.7 103.4  
9000  
201.0 201.0 197.5 153.3 109.0 64.7  
201.0 201.0 201.0 156.8 112.5 68.2  
242.9 210.7 161.0 111.3  
-
-
-
223.5 223.5 211.0 161.3 111.6  
10000  
203.1 203.1 203.1 153.4 103.7 54.0  
203.1 203.1 203.1 153.4 103.7 54.0  
1. These capacities are gross ratings. For net capacity, deduct the air blower motor, MBH = 3.415 x KW. Refer to the appropriate Blower Perfor-  
mance Table for the KW of the supply air blower motor.  
2. These ratings include the condenser fan motors (Total 2.3 KW) and the compressor motors but not the supply air blower motor.  
Nominal Rating  
Unitary Products Group  
13  
262259-YTG-B-0107  
TABLE 6: DM 300 COOLING CAPACITIES (25 TON)  
TEMPERATURE OF AIR ON CONDENSER COIL  
AIR ON  
EVAPORATOR  
COIL  
75°F  
85°F  
SENSIBLE CAPACITY, MBH  
ENTERING DRY BULB, °F  
SENSIBLE CAPACITY, MBH  
ENTERING DRY BULB, °F  
TOTAL POWER  
TOTAL  
POWER  
1
2
1
2
CAP.  
INPUT  
KW  
CAP.  
INPUT  
WB  
MBH  
MBH  
KW  
CFM  
°F  
90  
85  
80  
75  
70  
65  
90  
85  
80  
75  
70  
65  
77  
72  
364.9  
341.5  
318.1  
290.0  
287.2  
367.6  
344.0  
320.4  
292.1  
289.2  
370.2  
346.5  
322.7  
294.1  
291.3  
348.9  
325.1  
296.2  
293.3  
351.4  
327.4  
298.2  
295.3  
24.2  
23.7  
23.2  
23.1  
22.7  
24.2  
23.7  
23.2  
23.1  
22.7  
24.2  
23.7  
23.2  
23.1  
22.7  
23.5  
23.0  
22.9  
22.6  
23.4  
22.9  
22.8  
22.4  
197.4 161.8 126.1  
-
-
-
-
-
-
349.9  
326.3  
302.8  
279.5  
276.6  
355.6  
331.7  
307.8  
284.1  
281.1  
361.3  
337.0  
312.7  
288.6  
285.6  
342.3  
317.6  
293.2  
290.1  
347.6  
322.6  
297.7  
294.6  
26.9  
26.4  
25.9  
25.4  
25.4  
27.0  
26.5  
25.9  
25.4  
25.4  
27.1  
26.5  
26.0  
25.5  
25.5  
26.6  
26.0  
25.5  
25.5  
26.6  
26.1  
25.6  
25.6  
188.9 153.3 117.6  
-
-
-
-
-
-
237.8 202.2 166.5 130.9  
230.5 194.8 159.2 123.6  
7500  
8750  
67  
62  
57  
77  
72  
67  
62  
57  
77  
72  
67  
62  
57  
72  
67  
62  
57  
72  
67  
62  
57  
278.2 242.5 206.9 171.2 135.6  
272.1 236.4 200.8 165.1 129.5  
290.0 290.0 259.7 224.1 188.4 152.8  
287.2 287.2 259.1 223.5 187.8 152.2  
279.5 279.5 247.5 211.8 176.2 140.5  
276.6 276.6 251.1 215.5 179.8 144.2  
214.3 173.3 131.2  
-
-
-
-
-
-
209.9 165.4 123.3  
-
-
-
-
-
-
257.4 215.3 173.2 131.0  
251.1 209.0 166.9 124.8  
300.5 257.2 215.1 173.0 130.8  
292.4 252.6 210.5 168.3 126.2  
292.1 292.1 270.1 228.0 185.8 143.7  
289.2 289.2 269.4 227.3 185.1 143.0  
284.1 284.1 259.4 217.3 175.1 133.0  
281.1 281.1 263.2 221.1 179.0 136.9  
231.3 184.9 136.3  
-
-
-
-
-
-
230.8 177.6 129.0  
-
-
-
-
-
-
277.0 228.4 179.8 131.2  
271.8 223.2 174.6 126.0  
10000  
322.7 271.9 223.3 174.7 126.1  
312.7 268.7 220.1 171.5 122.9  
294.1 294.1 280.4 231.8 183.2 134.6  
291.3 291.3 279.7 231.1 182.5 133.9  
288.6 288.6 271.3 222.7 174.1 125.5  
285.6 285.6 275.3 226.7 178.1 129.5  
301.9 246.6 191.2 135.9  
-
-
-
293.9 238.6 183.2 127.9  
-
-
-
325.1 292.9 237.6 182.2 126.9  
317.6 286.4 231.0 175.7 120.3  
11250  
12500  
296.2 296.2 297.8 242.5 187.1 131.8  
293.3 293.3 289.6 234.3 178.9 123.6  
293.2 293.2 284.5 229.2 173.8 118.5  
290.1 290.1 285.0 229.6 174.3 118.9  
326.9 264.8 202.7 140.6  
-
-
-
316.0 253.9 191.8 129.7  
-
-
-
327.4 314.0 251.9 189.8 127.7  
322.6 304.0 241.9 179.8 117.7  
298.2 298.2 315.2 253.1 191.0 128.9  
295.3 295.3 299.6 237.5 175.4 113.3  
297.7 297.7 297.7 235.6 173.5 111.4  
294.6 294.6 294.6 232.5 170.4 108.3  
TEMPERATURE OF AIR ON CONDENSER COIL  
AIR ON  
EVAPORATOR  
COIL  
95°F  
105°F  
SENSIBLE CAPACITY, MBH  
ENTERING DRY BULB, °F  
SENSIBLE CAPACITY, MBH  
ENTERING DRY BULB, °F  
TOTAL POWER  
TOTAL  
POWER  
1
2
1
2
CAP.  
INPUT  
KW  
CAP.  
INPUT  
WB  
MBH  
MBH  
KW  
CFM  
°F  
90  
85  
80  
75  
70  
65  
90  
85  
80  
75  
70  
65  
77  
72  
334.8  
311.2  
287.6  
269.0  
266.0  
343.6  
319.3  
295.1  
276.1  
273.0  
352.4  
327.5  
302.7  
283.1  
280.0  
335.7  
310.2  
290.2  
286.9  
343.9  
317.8  
297.3  
293.9  
29.7  
29.1  
28.5  
27.7  
28.0  
29.8  
29.2  
28.7  
27.8  
28.1  
29.9  
29.3  
28.8  
27.9  
28.3  
29.6  
29.0  
28.1  
28.5  
29.9  
29.3  
28.4  
28.8  
180.4 144.8 109.1  
-
-
-
-
-
-
316.8  
294.4  
272.1  
253.0  
250.3  
323.0  
300.2  
277.4  
258.0  
255.3  
329.2  
306.0  
282.8  
263.0  
260.2  
311.8  
288.2  
267.9  
265.1  
317.6  
293.5  
272.9  
270.1  
32.8  
32.3  
31.7  
30.8  
31.3  
33.0  
32.4  
31.8  
30.9  
31.4  
33.1  
32.5  
31.9  
31.1  
31.5  
32.8  
32.2  
31.3  
31.7  
33.0  
32.4  
31.5  
32.0  
162.5 126.9 91.3  
-
-
-
-
-
-
223.2 187.5 151.9 116.3  
211.3 175.6 140.0 104.3  
7500  
8750  
67  
62  
57  
77  
72  
67  
62  
57  
77  
72  
67  
62  
57  
72  
67  
62  
57  
72  
67  
62  
57  
266.0 230.3 194.7 159.0 123.4  
260.0 224.3 188.7 153.1 117.4  
269.0 269.0 235.2 199.6 163.9 128.3  
266.0 266.0 243.1 207.5 171.8 136.2  
253.0 252.8 218.1 182.5 146.8 111.2  
250.3 250.3 223.0 187.4 151.7 116.1  
205.4 157.5 115.4  
-
-
-
-
-
-
194.4 139.0 96.9  
-
-
-
-
-
-
244.9 202.7 160.6 118.5  
232.9 190.8 148.7 106.5  
284.3 248.0 205.8 163.7 121.6  
271.4 242.6 200.5 158.4 116.2  
276.1 276.1 248.7 206.6 164.5 122.3  
273.0 273.0 257.1 214.9 172.8 130.7  
258.0 257.9 231.7 189.5 147.4 105.3  
255.3 255.3 236.8 194.7 152.6 110.5  
230.4 170.2 121.6  
-
-
-
-
-
-
226.3 151.1 102.5  
-
-
-
-
-
-
266.5 217.9 169.3 120.7  
254.6 206.0 157.4 108.8  
10000  
302.7 265.6 217.0 168.4 119.8  
282.8 260.8 212.2 163.6 115.0  
283.1 283.1 262.2 213.6 165.0 116.4  
280.0 280.0 271.0 222.4 173.8 125.2  
263.0 263.0 245.2 196.6 148.0 99.4  
260.2 260.2 250.7 202.1 153.5 104.9  
285.9 230.5 175.2 119.8  
-
-
-
272.1 216.8 161.4 106.1  
-
-
-
310.2 279.8 224.5 169.1 113.8  
288.2 271.3 217.6 162.3 106.9  
11250  
12500  
290.2 290.2 271.2 215.9 160.5 105.2  
286.9 286.9 280.4 225.0 169.7 114.3  
267.9 267.9 251.5 196.2 140.8 85.5  
265.1 265.1 257.2 201.8 146.5 91.1  
305.2 243.1 181.0 118.9  
-
-
-
289.7 227.6 165.5 103.4  
-
-
-
317.8 294.1 232.0 169.9 107.8  
293.5 281.7 223.0 160.9 98.8  
297.3 297.3 280.3 218.2 156.1 94.0  
293.9 293.9 289.7 227.6 165.5 103.4  
272.9 272.9 257.9 195.8 133.7 71.6  
270.1 270.1 263.7 201.6 139.5 77.4  
14  
Unitary Products Group  
 
262259-YTG-B-0107  
TABLE 6: DM 300 COOLING CAPACITIES (25 TON) (CONTINUED)  
TEMPERATURE OF AIR ON CONDENSER COIL  
AIR ON  
EVAPORATOR  
115°F  
SENSIBLE CAPACITY, MBH  
COIL  
TOTAL POWER  
ENTERING DRY BULB, °F  
1
2
CAP.  
INPUT  
KW  
WB  
°F  
MBH  
CFM  
90  
85  
80  
75  
70  
65  
77  
72  
67  
62  
57  
77  
72  
67  
62  
57  
77  
72  
67  
62  
57  
72  
67  
62  
57  
72  
67  
62  
57  
298.7  
277.7  
256.6  
236.9  
234.7  
302.4  
281.1  
259.8  
239.9  
237.6  
306.1  
284.5  
263.0  
242.8  
240.5  
287.9  
266.1  
245.7  
243.3  
291.3  
269.3  
248.6  
246.2  
36.0  
35.4  
34.8  
34.0  
34.5  
36.1  
35.5  
34.9  
34.1  
34.6  
36.3  
35.7  
35.1  
34.2  
34.8  
35.9  
35.3  
34.5  
35.0  
36.1  
35.5  
34.7  
35.2  
144.7 109.0 73.4  
-
-
-
-
-
-
199.3 163.7 128.1 92.4  
7500  
254.0 218.4 182.7 147.1 111.5  
236.9 236.6 201.0 165.4 129.7 94.1  
234.7 234.7 202.9 167.2 131.6 96.0  
183.4 120.5 78.3  
-
-
-
-
-
-
221.0 178.8 136.7 94.6  
8750  
258.5 237.2 195.1 153.0 110.9  
239.9 239.7 214.6 172.5 130.4 88.2  
237.6 237.6 216.6 174.5 132.4 90.3  
222.2 131.9 83.3  
-
-
-
-
-
-
242.6 194.0 145.4 96.8  
10000  
263.0 256.1 207.5 158.9 110.3  
242.8 242.8 228.2 179.6 131.0 82.4  
240.5 240.5 230.4 181.8 133.2 84.6  
258.4 203.1 147.7 92.4  
-
-
-
266.1 262.7 210.8 155.4 100.1  
11250  
12500  
245.7 245.7 231.8 176.5 121.1 65.8  
243.3 243.3 234.0 178.7 123.3 68.0  
274.2 212.1 150.0 87.9  
-
-
-
269.3 269.3 214.1 152.0 89.9  
248.6 248.6 235.5 173.4 111.3 49.2  
246.2 246.2 237.7 175.6 113.5 51.4  
1. These capacities are gross ratings. For net capacity, deduct the air blower motor, MBH = 3.415 x KW. Refer to the appropriate Blower Perfor-  
mance Table for the KW of the supply air blower motor.  
2. These ratings include the condenser fan motors (Total 2.1 KW) and the compressor motors but not the supply air blower motor.  
Unitary Products Group  
15  
262259-YTG-B-0107  
order to use the indoor blower tables for high altitude applica-  
tions, certain corrections are necessary.  
CFM, STATIC PRESSURE, AND POWER - ALTI-  
TUDE AND TEMPERATURE CORRECTIONS  
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 7 and Figure 2.  
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.  
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  
TABLE 7: ALTITUDE CORRECTION FACTORS  
ALTITUDE (FEET)  
AIR TEMP  
0
1000  
1.022  
1.002  
0.982  
0.964  
0.947  
0.929  
0.912  
2000  
0.986  
0.966  
0.948  
0.930  
0.913  
0.897  
0.880  
3000  
0.950  
0.931  
0.913  
0.896  
0.880  
0.864  
0.848  
4000  
0.916  
0.898  
0.880  
0.864  
0.848  
0.833  
0.817  
5000  
0.882  
0.864  
0.848  
0.832  
0.817  
0.802  
0.787  
6000  
0.849  
0.832  
0.816  
0.801  
0.787  
0.772  
0.758  
7000  
0.818  
0.802  
0.787  
0.772  
0.758  
0.744  
0.730  
8000  
0.788  
0.772  
0.757  
0.743  
0.730  
0.716  
0.703  
9000  
0.758  
0.743  
0.729  
0.715  
0.702  
0.689  
0.676  
10000  
0.729  
0.715  
0.701  
0.688  
0.676  
0.663  
0.651  
40  
50  
1.060  
1.039  
1.019  
1.000  
0.982  
0.964  
0.946  
60  
70  
80  
90  
100  
The examples below will assist in determining the airflow per-  
formance 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 informa-  
tion is given so 70°F is assumed.  
The 1.5" static pressure given is at an elevation of 5,000 ft.  
The first step is to convert this static pressure to equivalent  
sea level conditions.  
Solution: At an elevation of 5,000 ft., the indoor blower will  
still deliver 6,000 CFM if the rpm is unchanged. However,  
Table 7 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 7 shows the correction factor  
to be 0.832.  
Sea level static pressure = 1.5 / .832 = 1.80"  
Enter the blower table at 6000 sCFM and static pressure of  
1.8". The rpm listed will be the same rpm needed at 5,000 ft.  
Corrected static pressure = 1.5 x 0.832 = 1.248 IWC  
Corrected BHP = 4.0 x 0.832 = 3.328  
Suppose that the corresponding BHP listed in the table is 3.2.  
This value must be corrected for elevation.  
Example 2: A system, located at 5,000 feet of elevation, is to  
BHP at 5,000 ft = 3.2 x .832 = 2.66  
deliver 6,000 CFM at a static pressure of 1.5". Use the unit  
16  
Unitary Products Group  
 
262259-YTG-B-0107  
FIGURE 2 - ALTITUDE/TEMPERATURE CONVERSION FACTOR  
Unitary Products Group  
17  
 
262259-YTG-B-0107  
TABLE 8: SUPPLY AIR BLOWER PERFORMANCE (15 TON) -  
COOLING ONLY 180 MBH - BOTTOM DUCT CONNECTIONS  
MOTOR  
PULLEY  
(TURNS  
OPEN)*  
CFM  
6000  
BHP  
BLOWER  
SPEED,  
(RPM)  
4500  
BHP  
5250  
BHP  
6750  
BHP  
7200  
ESP  
KW  
ESP  
KW  
ESP  
KW  
ESP  
KW  
ESP  
BHP  
KW  
208 VOLT AND STANDARD DRIVE  
850  
870  
6.0**  
5.5  
4.5  
3.5  
3.0  
2.0  
1.0  
0.9  
1.0  
1.1  
1.2  
1.3  
1.4  
1.5  
2.4  
2.5  
2.6  
2.9  
3.0  
3.1  
3.2  
2.2  
2.3  
2.4  
2.6  
2.7  
2.8  
2.9  
0.7  
0.8  
0.9  
1.0  
1.1  
1.2  
1.3  
3.0  
3.1  
3.4  
3.6  
3.7  
3.8  
3.9  
2.7  
2.8  
3.0  
3.2  
3.3  
3.4  
3.5  
0.5  
0.6  
0.7  
0.8  
0.9  
1.0  
1.1  
3.2  
3.5  
3.7  
4.0  
4.1  
4.2  
4.5  
2.9  
3.1  
3.3  
3.6  
3.7  
3.8  
4.0  
-
-
-
-
-
-
0.2  
0.3  
0.5  
0.6  
0.7  
0.9  
4.1  
4.4  
4.7  
4.8.  
5.0  
5.2  
3.7  
3.9  
4.2  
4.3  
4.5  
4.7  
-
-
-
915  
0.2  
0.4  
0.5  
0.6  
0.7  
4.5  
4.9  
5.1  
5.4  
5.7  
4.0  
4.4  
4.6  
4.8  
5.1  
965  
980  
1010  
1040  
208 VOLT AND HIGH SPEED DRIVE  
965  
980  
6.0  
5.5  
4.5  
3.5  
3.0  
2.0  
1.0  
1.2  
1.3  
1.5  
1.6  
1.7  
1.9  
2.1  
2.9  
3.0  
3.2  
3.4  
3.5  
3.7  
3.9  
2.6  
2.7  
2.9  
3.0  
3.1  
3.3  
3.5  
1.0  
1.1  
1.3  
1.4  
1.5  
1.7  
2.0  
3.6  
3.7  
3.9  
4.0  
4.2  
4.5  
4.7  
3.2  
3.3  
3.5  
3.6  
3.8  
4.0  
4.2  
0.8  
0.9  
1.1  
1.2  
1.3  
1.5  
1.8  
4.0  
4.1  
4.5  
4.7  
4.9  
5.1  
5.5  
3.6  
3.7  
4.0  
4.2  
4.4  
4.6  
4.9  
0.5  
0.6  
0.8  
1.0  
1.2  
-
4.7  
4.8  
5.1  
5.5  
5.7  
-
4.2  
4.3  
4.6  
4.9  
5.1  
-
0.4  
5.0  
4.4  
0.5  
5.1  
4.6  
1025  
1065  
1095  
1130  
1170  
0.7  
5.6  
5.0  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
230/460/575 VOLT AND STANDARD DRIVE  
870  
915  
6.0**  
5.0  
4.0  
3.5  
2.0  
1.0  
1.0  
1.1  
1.2  
1.3  
1.5  
1.6  
2.4  
2.6  
2.9  
3.0  
3.2  
3.3  
2.2  
2.4  
2.6  
2.7  
2.9  
3.0  
0.8  
0.9  
1.0  
1.1  
1.3  
1.4  
3.1  
3.3  
3.6  
3.7  
3.9  
4.0  
2.8  
3.0  
3.2  
3.3  
3.5  
3.6  
0.6  
0.7  
0.8  
0.9  
1.1  
1.2  
3.5  
3.7  
4.0  
4.1  
4.5  
4.7  
3.1  
3.3  
3.6  
3.7  
4.0  
4.2  
0.2  
0.3  
0.5  
0.6  
0.9  
1.0  
4.1  
4.4  
4.7  
4.8  
5.3  
5.5  
3.7  
3.9  
4.2  
4.3  
4.7  
4.9  
-
-
-
0.2  
0.4  
0.5  
0.7  
-
4.5  
5.0  
5.1  
5.7  
-
4.0  
4.4  
4.6  
5.1  
-
965  
980  
1040  
1065  
230/460/575 VOLT AND HIGH SPEED DRIVE  
980  
6.0  
4.5  
4.0  
3.5  
2.5  
1.5  
1.0  
1.3  
1.5  
1.6  
1.7  
1.9  
2.1  
2.2  
2.9  
3.2  
3.4  
3.5  
3.7  
3.9  
4.0  
2.6  
2.9  
3.0  
3.1  
3.3  
3.5  
3.6  
1.1  
1.3  
1.4  
1.5  
1.7  
2.0  
2.1  
3.7  
3.9  
4.0  
4.2  
4.5  
4.7  
4.8  
3.3  
3.5  
3.6  
3.8  
4.0  
4.2  
4.3  
0.9  
1.1  
1.2  
1.3  
1.5  
1.8  
2.0  
4.1  
4.5  
4.7  
4.9  
5.1  
5.5  
5.7  
3.7  
4.0  
4.2  
4.4  
4.6  
4.9  
5.1  
0.6  
0.9  
1.0  
1.2  
-
4.8  
5.3  
5.5  
5.7  
-
4.3  
4.7  
4.9  
5.1  
-
0.5  
5.1  
4.6  
1040  
1065  
1095  
1130  
1170  
1190  
0.7  
5.7  
5.1  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
NOTES: 1. Blower performance includes fixed outdoor air, 2” T/A filters, a dry evaporator coil and no electric heat.  
2. Refer to Table 13 for additional static resistances.  
ESP = External Static Pressure available for the supply and return air duct system. All internal unit resistances have been deducted from the  
total static pressure of the blower.  
* Do NOT close the pulley below 1 turn open.  
** Factory setting.  
18  
Unitary Products Group  
 
262259-YTG-B-0107  
TABLE 9: SUPPLY AIR BLOWER PERFORMANCE (20 TON) - COOLING ONLY  
240 MBH - BOTTOM DUCT CONNECTIONS  
MOTOR  
PULLEY  
(TURNS  
OPEN)*  
CFM  
8000  
BHP  
BLOWER  
SPEED,  
(RPM)  
6000  
BHP  
7000  
BHP  
9000  
BHP  
9400  
BHP  
ESP  
KW  
ESP  
KW  
ESP  
KW  
ESP  
KW  
ESP  
KW  
208 VOLT AND STANDARD DRIVE  
870  
900  
930  
950  
980  
1015  
6.0**  
5.0  
4.0  
3.0  
2.0  
1.0  
0.4  
0.8  
1.1  
1.3  
1.6  
1.9  
2.1  
3.2  
4.1  
4.6  
5.3  
5.9  
1.8  
2.7  
3.4  
3.9  
4.5  
5.0  
0.1  
0.5  
0.9  
1.1  
1.4  
1.7  
2.3  
3.5  
4.5  
5.1  
5.8  
6.5  
2.0  
2.9  
3.8  
4.3  
4.9  
5.5  
-
-
-
-
-
-
-
-
-
-
-
-
0.2  
0.6  
0.8  
1.2  
1.5  
3.8  
4.9  
5.5  
6.3  
7.0  
3.2  
4.1  
4.6  
5.3  
5.9  
-
-
-
0.1  
0.4  
0.7  
1.0  
5.1  
5.9  
6.9  
7.7  
4.3  
5.0  
5.8  
6.5  
-
-
-
-
-
-
0.2  
0.6  
7.3  
8.2  
6.1  
6.9  
208 VOLT AND HIGH SPEED DRIVE  
950  
980  
6.0  
5.0  
4.0  
3.5  
3.0  
2.5  
2.0  
1.0  
1.3  
1.6  
1.8  
1.9  
2.0  
2.1  
2.3  
2.4  
4.6  
5.3  
5.8  
6.1  
6.2  
6.4  
6.6  
6.7  
3.9  
4.5  
4.9  
5.1  
5.2  
5.4  
5.5  
5.6  
1.1  
1.4  
1.7  
1.8  
1.9  
2.0  
2.1  
2.2  
5.1  
5.8  
6.3  
6.5  
6.8  
7.0  
7.2  
7.3  
4.3  
4.9  
5.3  
5.5  
5.7  
5.9  
6.0  
6.1  
0.8  
1.2  
1.5  
1.6  
1.7  
1.8  
1.9  
2.1  
5.5  
6.3  
6.9  
7.1  
7.4  
7.6  
7.8  
7.9  
4.6  
5.3  
5.8  
6.0  
6.2  
6.4  
6.6  
6.7  
0.4  
0.7  
1.0  
1.1  
1.2  
1.3  
1.5  
-
5.9  
6.9  
7.5  
7.8  
8.1  
8.3  
8.6  
-
5.0  
5.8  
6.3  
6.6  
6.8  
7.0  
7.2  
-
-
0.2  
0.5  
0.6  
0.7  
-
-
7.3  
7.9  
8.3  
8.6  
-
-
6.1  
6.7  
7.0  
7.3  
-
1010  
1020  
1035  
1050  
1075  
1100  
-
-
-
-
-
-
230/460/575 VOLT AND STANDARD DRIVE  
870  
900  
6.0**  
5.0  
4.0  
3.5  
2.5  
1.5  
1.0  
0.4  
0.8  
1.1  
1.3  
1.6  
1.9  
2.0  
2.1  
3.2  
4.1  
4.6  
5.3  
5.9  
6.1  
1.8  
2.7  
3.4  
3.9  
4.5  
5.0  
5.1  
0.1  
0.5  
0.9  
1.1  
1.4  
1.7  
1.8  
2.3  
3.5  
4.5  
5.1  
5.8  
6.5  
6.6  
2.0  
2.9  
3.8  
4.3  
4.9  
5.5  
5.6  
-
-
-
-
-
-
-
-
-
-
-
-
0.2  
0.6  
0.8  
1.2  
1.5  
1.6  
3.8  
4.9  
5.5  
6.3  
7.0  
7.3  
3.2  
4.1  
4.6  
5.3  
5.9  
6.1  
-
-
-
930  
0.1  
0.4  
0.7  
1.0  
1.1  
5.1  
5.9  
6.9  
7.7  
7.9  
4.3  
5.0  
5.8  
6.5  
6.7  
-
-
-
950  
-
-
-
980  
0.2  
0.6  
0.7  
7.3  
8.2  
8.6  
6.1  
6.9  
7.3  
1015  
1025  
230/460/575 VOLT AND HIGH SPEED DRIVE  
950  
980  
6.0  
5.0  
4.0  
3.5  
3.0  
2.0  
1.5  
1.0  
1.3  
1.6  
1.9  
2.0  
2.1  
2.3  
2.4  
2.5  
4.6  
5.3  
5.9  
6.2  
6.4  
6.6  
6.7  
6.8  
3.9  
4.5  
5.0  
5.2  
5.4  
5.5  
5.6  
5.7  
1.1  
1.4  
1.7  
1.9  
2.0  
2.1  
2.2  
2.3  
5.1  
5.8  
6.5  
6.8  
7.0  
7.2  
7.3  
7.4  
4.3  
4.9  
5.5  
5.7  
5.9  
6.0  
6.1  
6.2  
0.8  
1.2  
1.5  
1.7  
1.8  
1.9  
2.1  
2.2  
5.5  
6.3  
7.0  
7.4  
7.6  
7.8  
7.9  
8.1  
4.6  
5.3  
5.9  
6.2  
6.4  
6.6  
6.7  
6.8  
0.4  
0.7  
1.0  
1.2  
1.3  
1.5  
-
5.9  
6.9  
7.7  
8.1  
8.3  
8.6  
-
5.0  
5.8  
6.5  
6.8  
7.0  
7.2  
-
-
0.2  
0.6  
0.7  
-
-
7.3  
8.2  
8.6  
-
-
6.1  
6.9  
7.3  
-
1015  
1035  
1050  
1080  
1100  
1120  
-
-
-
-
-
-
-
-
-
-
-
-
NOTES: 1. Blower performance includes fixed outdoor air, 2” T/A filters, a dry evaporator coil and no electric heat.  
2. Refer to Table 13 for additional static resistances.  
ESP = External Static Pressure available for the supply and return air duct system. All internal unit resistances have been deducted from the  
total static pressure of the blower.  
* Do NOT close the pulley below 1 turn open.  
** Factory setting.  
Unitary Products Group  
19  
 
262259-YTG-B-0107  
TABLE 10: SUPPLY AIR BLOWER PERFORMANCE (15 TON) - GAS HEAT  
180 MBH - BOTTOM DUCT CONNECTIONS  
MOTOR  
PULLEY  
(TURNS  
OPEN)*  
CFM  
6000  
BHP  
BLOWER  
SPEED,  
(RPM)  
4500  
BHP  
5250  
BHP  
6750  
BHP  
7200  
ESP  
KW  
ESP  
KW  
ESP  
KW  
ESP  
KW  
ESP  
BHP  
KW  
208 VOLT AND STANDARD DRIVE  
850  
870  
6.0**  
5.5  
4.5  
3.5  
3.0  
2.0  
1.0  
0.9  
1.0  
1.1  
1.2  
1.3  
1.4  
1.6  
2.4  
2.5  
2.6  
2.7  
2.9  
3.0  
3.2  
2.1  
2.2  
2.4  
2.5  
2.6  
2.7  
2.9  
0.6  
0.7  
0.8  
0.9  
1.0  
1.1  
1.3  
2.9  
3.0  
3.1  
3.2  
3.4  
3.6  
3.8  
2.6  
2.7  
2.8  
2.9  
3.0  
3.2  
3.4  
0.3  
0.4  
0.5  
0.6  
0.7  
0.8  
1.0  
3.4  
3.5  
3.6  
3.7  
3.8  
4.0  
4.4  
3.0  
3.1  
3.2  
3.3  
3.4  
3.6  
3.9  
-
-
-
-
-
-
-
-
-
-
-
-
915  
0.2  
0.4  
0.5  
0.6  
0.8  
4.1  
4.4  
4.5  
4.7  
5.0  
3.7  
3.0  
4.0  
4.2  
4.5  
-
-
-
965  
0.2  
0.3  
0.4  
0.6  
5.0  
5.1  
5.4  
5.6  
4.5  
4.6  
4.8  
5.0  
980  
1010  
1040  
208 VOLT AND HIGH SPEED DRIVE  
965  
980  
6.0  
5.5  
4.5  
3.5  
2.0  
1.0  
1.2  
1.3  
1.4  
1.6  
1.9  
2.1  
2.7  
2.9  
3.1  
3.4  
3.6  
3.9  
2.5  
2.6  
2.8  
3.0  
3.2  
3.5  
0.9  
1.0  
1.2  
1.4  
1.7  
1.9  
3.2  
3.4  
3.6  
3.9  
4.4  
4.7  
2.9  
3.0  
3.2  
3.5  
3.9  
4.2  
0.6  
0.7  
0.9  
1.1  
1.4  
1.6  
3.7  
3.8  
4.1  
4.5  
5.0  
5.5  
3.3  
3.4  
3.7  
4.0  
4.5  
4.9  
0.4  
0.5  
0.7  
0.9  
1.2  
-
4.4  
4.5  
4.8  
5.1  
5.8  
-
3.9  
4.0  
4.3  
4.6  
5.2  
-
0.2  
0.3  
0.4  
-
5.0  
5.1  
5.5  
-
4.5  
4.6  
4.9  
-
1025  
1065  
1125  
1170  
-
-
-
-
-
-
230/460/575 VOLT AND STANDARD DRIVE  
870  
915  
6.0**  
5.0  
4.0  
3.5  
2.5  
1.5  
1.0  
1.0  
1.1  
1.2  
1.3  
1.4  
1.5  
1.6  
2.5  
2.6  
2.7  
2.9  
3.0  
3.1  
3.4  
2.2  
2.4  
2.5  
2.6  
2.7  
2.8  
3.0  
0.7  
0.8  
0.9  
1.0  
1.1  
1.2  
1.4  
3.0  
3.1  
3.2  
3.4  
3.6  
3.7  
3.9  
2.7  
2.8  
2.9  
3.0  
3.2  
3.3  
3.5  
0.4  
0.5  
0.6  
0.7  
0.8  
0.9  
1.1  
3.5  
3.6  
3.7  
3.8  
4.0  
4.2  
4.5  
3.1  
3.2  
3.3  
3.4  
3.6  
3.8  
4.0  
-
-
-
-
-
-
0.2  
0.4  
0.5  
0.6  
0.7  
0.9  
4.1  
4.4  
4.5  
4.7  
4.9  
5.1  
3.7  
3.9  
4.0  
4.2  
4.4  
4.6  
-
-
-
965  
0.2  
0.3  
0.4  
0.5  
-
5.0  
5.1  
5.4  
5.7  
-
4.5  
4.6  
4.8  
5.1  
-
980  
1015  
1050  
1065  
230/460/575 VOLT AND HIGH SPEED DRIVE  
980  
6.0  
4.5  
4.0  
2.5  
1.5  
1.0  
1.3  
1.6  
1.7  
1.9  
2.1  
2.2  
2.9  
3.2  
3.4  
3.6  
3.9  
4.0  
2.6  
2.9  
3.0  
3.2  
3.5  
3.6  
1.0  
1.3  
1.4  
1.7  
1.8  
1.9  
3.4  
3.8  
3.9  
4.4  
4.7  
4.8  
3.0  
3.4  
3.5  
3.9  
4.2  
4.3  
0.7  
1.0  
1.1  
1.4  
1.6  
1.7  
3.8  
4.4  
4.5  
5.0  
5.5  
5.6  
3.4  
3.9  
4.0  
4.5  
4.9  
5.0  
0.5  
0.8  
0.9  
1.2  
-
4.5  
5.0  
5.1  
5.8  
-
4.0  
4.5  
4.6  
5.2  
-
0.3  
5.1  
4.6  
1045  
1065  
1125  
1170  
1190  
0.6  
5.6  
5.0  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
NOTES: 1. Blower performance includes a gas-fired heat exchanger, fixed outdoor air, two-inch T/A filters and a dry evaporator coil.  
2. Refer to the additional Static Resistances table.  
ESP = External Static Pressure available for the supply and return air duct system. All internal unit resistances have been deducted from the  
total static pressure of the blower.  
* Do NOT close the pulley below 1 turn open.  
** Factory setting.  
20  
Unitary Products Group  
 
262259-YTG-B-0107  
TABLE 11: SUPPLY AIR BLOWER PERFORMANCE (20 TON) - GAS HEAT  
240 MBH - BOTTOM DUCT CONNECTIONS  
MOTOR  
PULLEY  
(TURNS  
OPEN)*  
CFM  
8000  
BHP  
BLOWER  
SPEED,  
(RPM)  
6000  
BHP  
7000  
BHP  
9000  
BHP  
9400  
BHP  
ESP  
KW  
ESP  
KW  
ESP  
KW  
ESP  
KW  
ESP  
KW  
208 VOLT AND STANDARD DRIVE  
870  
900  
930  
950  
980  
995  
1015  
6.0**  
5.0  
4.0  
3.0  
2.0  
1.5  
1.0  
1.3  
1.4  
1.6  
1.7  
1.9  
2.1  
2.2  
3.6  
3.8  
4.1  
4.2  
4.5  
4.6  
4.8  
3.0  
3.2  
3.4  
3.6  
3.8  
3.9  
4.0  
0.7  
0.9  
1.1  
1.3  
1.5  
1.6  
1.7  
4.3  
4.7  
5.0  
5.1  
5.4  
5.5  
4.7  
3.7  
4.0  
4.2  
4.3  
4.5  
4.7  
4.8  
0.2  
0.4  
0.6  
0.8  
1.0  
1.1  
1.2  
5.1  
5.6  
5.9  
6.0  
6.3  
6.4  
6.6  
4.3  
4.7  
5.0  
5.1  
5.3  
5.4  
5.6  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
0.1  
0.2  
0.4  
0.5  
0.7  
6.7  
6.9  
7.2  
7.5  
7.8  
5.7  
5.8  
6.1  
6.3  
6.6  
-
-
-
0.1  
0.2  
-
8.5  
8.6  
-
7.1  
7.3  
-
208 VOLT AND HIGH SPEED DRIVE  
950  
980  
6.0  
5.0  
4.5  
3.5  
2.5  
2.0  
1.0  
1.7  
1.9  
2.1  
2.3  
2.5  
2.6  
2.9  
4.2  
4.5  
4.5  
4.9  
5.1  
5.3  
5.6  
3.6  
3.8  
3.9  
4.1  
4.3  
4.4  
4.7  
1.3  
1.5  
1.6  
1.8  
2.0  
2.1  
2.3  
5.1  
5.4  
5.5  
5.8  
6.1  
6.3  
6.8  
4.3  
4.5  
4.7  
4.9  
5.1  
5.3  
5.7  
0.8  
1.0  
1.1  
1.3  
1.4  
1.5  
1.8  
6.0  
6.3  
6.4  
6.7  
7.1  
7.3  
7.9  
5.1  
5.3  
5.4  
5.7  
6.0  
6.2  
6.6  
0.2  
0.4  
0.5  
0.7  
0.9  
1.0  
-
6.9  
7.2  
7.5  
8.0  
8.4  
8.6  
-
5.8  
6.1  
6.3  
6.7  
7.0  
7.2  
-
-
-
-
0.1  
8.5  
7.1  
995  
0.2  
8.6  
7.3  
1025  
1050  
1065  
1100  
-
-
-
-
-
-
-
-
-
-
-
-
230/460/575 VOLT AND STANDARD DRIVE  
870  
900  
6.0**  
5.0  
4.0  
3.5  
2.5  
2.0  
1.5  
1.0  
1.3  
1.4  
1.6  
1.7  
1.9  
2.1  
2.2  
2.3  
3.6  
3.8  
4.1  
4.2  
4.5  
4.6  
4.8  
4.9  
3.0  
3.2  
3.4  
3.6  
3.8  
3.9  
4.0  
4.1  
0.7  
0.9  
1.1  
1.3  
1.5  
1.6  
1.7  
1.8  
4.3  
4.7  
5.0  
5.1  
5.4  
5.5  
5.7  
5.8  
3.7  
4.0  
4.2  
4.3  
4.5  
4.7  
4.8  
4.9  
0.2  
0.4  
0.6  
0.8  
1.0  
1.1  
1.2  
1.3  
5.1  
5.6  
5.9  
6.0  
6.3  
6.4  
6.6  
6.7  
4.3  
4.7  
5.0  
5.1  
5.3  
5.4  
5.6  
5.7  
-
-
-
-
-
-
-
-
-
-
-
-
930  
0.1  
0.2  
0.4  
0.5  
0.6  
0.7  
6.7  
6.9  
7.2  
7.5  
7.8  
8.0  
5.7  
5.8  
6.1  
6.3  
6.6  
6.7  
-
-
-
-
-
-
950  
965  
0.1  
0.2  
-
8.5  
8.6  
-
7.1  
7.3  
-
995  
1015  
1025  
-
-
-
230/460/575 VOLT AND HIGH SPEED DRIVE  
950  
980  
6.0  
5.0  
4.5  
4.0  
3.5  
3.0  
2.5  
1.5  
1.0  
1.7  
1.9  
2.1  
2.2  
2.3  
2.5  
2.6  
2.9  
3.1  
4.2  
4.5  
4.6  
4.8  
4.9  
5.1  
5.3  
5.6  
5.8  
3.6  
3.8  
3.9  
4.0  
4.1  
4.3  
4.4  
4.7  
4.9  
1.3  
1.5  
1.6  
1.7  
1.8  
2.0  
2.1  
2.3  
2.5  
5.1  
5.4  
5.5  
5.7  
5.8  
6.1  
6.3  
6.8  
7.0  
4.3  
4.5  
4.7  
4.8  
4.9  
5.1  
5.3  
4.7  
5.9  
0.8  
1.0  
1.1  
1.2  
1.3  
1.4  
1.5  
1.8  
1.9  
6.0  
6.3  
6.4  
6.6  
6.7  
7.1  
7.3  
7.9  
8.3  
5.1  
5.3  
5.4  
5.6  
5.7  
6.0  
6.2  
6.6  
6.9  
0.2  
0.4  
0.5  
0.6  
0.7  
0.9  
1.0  
-
6.9  
7.2  
7.5  
7.8  
8.0  
8.4  
8.6  
-
5.8  
6.1  
6.3  
6.6  
6.7  
7.0  
7.2  
-
-
-
-
0.1  
8.5  
7.1  
995  
0.2  
8.6  
7.3  
1015  
1025  
1050  
1065  
1100  
1120  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
NOTES: 1. Blower performance includes a gas-fired heat exchanger, fixed outdoor air, two-inch T/A filters and a dry evaporator coil.  
2. Refer to the additional Static Resistances table.  
ESP = External Static Pressure available for the supply and return air duct system. All internal unit resistances have been deducted from the  
total static pressure of the blower.  
* Do NOT close the pulley below 1 turn open.  
** Factory setting.  
Unitary Products Group  
21  
 
262259-YTG-B-0107  
TABLE 12: SUPPLY AIR BLOWER PERFORMANCE (25 TON) - GAS HEAT  
300 MBH - BOTTOM DUCT CONNECTIONS  
MOTOR  
PULLEY  
(TURNS  
OPEN)*  
CFM  
10000  
BHP  
BLOWER  
SPEED,  
(RPM)  
7500  
BHP  
8750  
BHP  
11250  
BHP  
12500  
ESP  
KW  
ESP  
KW  
ESP  
KW  
ESP  
KW  
ESP  
BHP  
KW  
208 VOLT AND STANDARD DRIVE  
975  
6.0  
5.0  
4.0  
3.0  
2.0  
1.0  
0.0  
1.2  
1.4  
1.6  
1.8  
2.0  
2.2  
2.4  
5.9  
6.2  
6.6  
6.9  
7.3  
7.7  
8.0  
4.9  
5.1  
5.4  
5.7  
6.0  
6.3  
6.6  
5.0  
0.7  
0.9  
1.1  
1.3  
1.6  
1.8  
7.3  
7.7  
8.1  
8.5  
8.9  
9.3  
9.7  
6.0  
6.3  
6.7  
7.0  
7.3  
7.6  
8.0  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1005  
1040  
1070  
1100  
1135  
1165  
-
-
-
-
-
-
0.2  
0.4  
0.6  
0.8  
1.0  
9.7  
10.2  
10.6  
11.1  
11.6  
8.0  
8.3  
8.7  
9.1  
9.5  
-
-
-
-
-
-
-
-
-
-
-
-
0.2  
13.5  
11.0  
208 VOLT AND HIGH SPEED DRIVE  
1140  
1180  
1215  
1255  
1290  
1330  
1365  
6.0  
5.0  
4.0  
3.0  
2.0  
1.0  
0.0  
2.2  
2.5  
2.7  
3.0  
3.2  
3.5  
3.7  
7.7  
8.2  
6.3  
6.7  
7.0  
7.4  
7.8  
8.2  
8.6  
1.6  
1.9  
2.1  
2.4  
2.7  
3.0  
3.2  
9.4  
9.9  
7.7  
8.1  
8.5  
9.0  
9.4  
9.9  
10.3  
0.9  
1.2  
1.4  
1.7  
2.0  
2.3  
2.6  
11.2  
11.8  
12.3  
12.9  
13.5  
14.1  
14.7  
9.2  
9.7  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
0.3  
0.6  
0.9  
1.2  
1.5  
1.8  
13.7  
14.3  
15.0  
15.6  
16.4  
17.0  
11.2  
11.7  
12.3  
12.8  
13.4  
13.9  
8.6  
10.4  
11.0  
11.5  
12.0  
12.6  
10.1  
10.6  
11.1  
11.6  
12.1  
9.1  
9.5  
10.0  
10.5  
230/460/575 VOLT AND STANDARD DRIVE  
975  
6.0*  
5.0  
4.0  
3.0  
2.0  
1.0  
0.0  
1.4  
1.6  
1.8  
2.0  
2.1  
2.4  
2.6  
5.9  
6.2  
6.6  
6.9  
7.3  
7.7  
8.0  
4.9  
5.1  
5.4  
5.7  
6.0  
6.3  
6.6  
1.0  
1.2  
1.4  
1.6  
1.8  
2.0  
2.2  
7.3  
7.7  
8.1  
8.5  
8.9  
9.3  
9.7  
6.0  
6.3  
6.7  
7.0  
7.3  
7.6  
8.0  
0.5  
0.7  
0.9  
1.1  
1.3  
1.6  
1.8  
8.8  
9.2  
7.2  
7.6  
8.0  
8.3  
8.7  
9.1  
9.5  
-
-
-
-
-
-
-
1005  
1040  
1070  
1100  
1135  
1165  
0.1  
0.3  
0.6  
0.8  
1.0  
1.3  
10.9  
11.4  
11.9  
12.4  
13.0  
13.5  
8.9  
-
-
9.7  
9.4  
-
-
-
10.2  
10.6  
11.1  
11.6  
9.8  
-
-
-
10.2  
10.6  
11.0  
0.2  
0.4  
0.7  
14.3  
14.9  
15.5  
11.7  
12.2  
12.7  
230/460/575 VOLT AND HIGH SPEED DRIVE  
1140  
1180  
1215  
1255  
1290  
1330  
1365  
6.0  
5.0  
4.0  
3.0  
2.0  
1.0  
0.0  
2.4  
2.7  
2.9  
3.2  
3.4  
3.7  
3.9  
7.7  
8.2  
6.3  
6.7  
7.0  
7.4  
7.8  
8.2  
8.6  
2.1  
2.3  
2.6  
2.9  
3.1  
3.4  
3.7  
9.4  
9.9  
7.7  
8.1  
8.5  
9.0  
9.4  
9.9  
10.3  
1.6  
1.9  
2.2  
2.5  
2.7  
3.0  
3.3  
11.2  
11.8  
12.3  
12.9  
13.5  
14.1  
14.7  
9.2  
9.7  
1.1  
1.4  
1.7  
2.0  
2.2  
2.6  
2.9  
13.1  
13.7  
14.3  
15.0  
15.6  
16.4  
17.0  
10.7  
11.2  
11.7  
12.3  
12.8  
13.4  
13.9  
0.5  
0.8  
1.1  
1.4  
-
15.0  
15.8  
16.4  
17.2  
-
12.3  
12.9  
13.5  
14.1  
-
8.6  
10.4  
11.0  
11.5  
12.0  
12.6  
10.1  
10.6  
11.1  
11.6  
12.1  
9.1  
9.5  
10.0  
10.5  
-
-
-
-
-
-
NOTES: 1. Blower performance includes a gas-fired heat exchanger, fixed outdoor air, two-inch T/A filters and a dry evaporator coil.  
2. Refer to the additional Static Resistances table.  
ESP = External Static Pressure available for the supply and return air duct system. All internal unit resistances have been deducted from the  
total static pressure of the blower.  
* Do NOT close the pulley below 1 turn open.  
** Factory setting.  
15 HP Motor is required.  
22  
Unitary Products Group  
 
262259-YTG-B-0107  
TABLE 13: BLOWER MOTOR AND DRIVE DATA  
BELT  
(NOTCHED)  
1
MOTOR  
ADJUSTABLE MOTOR PULLEY  
FIXED BLOWER PULLEY  
OUTSIDE PITCH  
BLOWER  
DRIVE RANGE  
(RPM)  
MODEL  
SIZE  
OUTSIDE PITCH  
PITCH  
LENGTH QTY.  
(IN.)  
EFF.  
(%)  
DESIG-  
NATION  
BORE DESIG-  
(IN.) NATION  
BORE DESIG-  
HP FRAME  
DIA.  
(IN.)  
DIA.  
(IN.)  
DIA.  
(IN.)  
DIA.  
(IN.)  
(IN.) NATION  
Standard 850/1065  
BK90  
8.75  
7.75  
11.75  
10.75  
11.3  
8.4  
1
BX81  
BX68  
BX83  
BX81  
BX81  
82.8  
69.8  
84.8  
82.8  
82.8  
84.0  
1
1
1
1
1
1
2
High  
15 TON  
20 TON  
25 TON  
5
184 T  
83  
89  
1VP56  
1VP68  
5.35  
6.75  
4.3-5.3  
1-1/8  
BK80  
Speed 965/1190  
Access  
7.4  
1
Standard 870/1025  
BK120  
11.4  
10.4  
11.1  
9.5  
1-3/16  
1-3/16  
1-7/16  
2
2
High  
7.5 213 T  
5.5-6.5  
5.5-6.5  
1-3/8  
Speed 950/1120  
Access  
BK110  
Standard 950/1120 10 215 T 89.5  
High  
Speed 1140/1365 15 254 T  
Access  
1VP68  
6.75  
7.5  
1-3/8 1B5V110  
91  
1VP75X  
6.2-7.4 1-5/8 1B5V94  
9.7  
1-7/16 5VX840  
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 pulley below 1 turn open.  
1
TABLE 14: STATIC RESISTANCES  
RESISTANCE, IWG  
CFM  
DESCRIPTION  
15 TON  
6000  
0.1  
20 TON  
8000  
0.1  
25 TON  
10000  
0.1  
4500  
0.1  
0.3  
0.3  
0.4  
0.4  
0.1  
0.1  
7200  
0.1  
0.4  
0.5  
0.5  
0.5  
0.1  
0.3  
6000  
0.1  
0.4  
0.4  
0.5  
0.5  
0.1  
0.2  
9400  
0.1  
0.5  
0.5  
0.6  
0.6  
0.2  
0.5  
7500  
0.1  
0.4  
0.5  
0.5  
0.5  
0.1  
0.3  
12500  
0.1  
WET INDOOR COIL  
18 KW  
36 KW  
54 KW  
72 KW  
0.4  
0.4  
0.5  
0.6  
0.4  
0.5  
0.5  
0.6  
ELECTRIC HEAT OPTIONS  
0.5  
0.5  
0.6  
0.7  
0.5  
0.5  
0.6  
0.7  
ECONOMIZER OPTION  
0.1  
0.1  
0.2  
0.3  
HORIZONTAL DUCT CONNECTIONS2  
0.2  
0.3  
0.5  
0.6  
1. Deduct these resistance values from the available external static pressures shown in the respective Blower Performance Table (See Note 2 for  
exception.)  
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 15: POWER EXHAUST PERFORMANCE  
STATIC RESISTANCE OF RETURN DUCTWORK, IWG  
MOTOR  
SPEED1  
0.2  
0.3  
0.4  
0.5  
0.6  
CFM  
kW  
CFM  
kW  
CFM  
kW  
CFM  
kW  
CFM  
kW  
HIGH2  
MEDIUM  
LOW  
5250  
4900  
4400  
0.83  
0.77  
0.72  
4500  
3900  
3700  
0.85  
0.79  
0.74  
4200  
3500  
3000  
0.88  
0.82  
0.78  
3750  
2900  
-
0.93  
0.85  
-
3000  
0.99  
-
-
-
-
1. Power exhaust motor is a 3/4 HP, PSC type with sleeve bearings, a 48 frame and inherent protection.  
2. The factory setting.  
Unitary Products Group  
23  
     
262259-YTG-B-0107  
TABLE 16: DM 180, 240 ELECTRICAL DATA WITHOUT POWERED CONVENIENCE OUTLET  
COMPRESSORS  
HEATER OPTION  
MAX.  
FUSE/  
ID  
MIN.  
MODEL  
(TON-  
OD FAN  
MOTORS  
FLA EACH  
CONV  
OUTLET  
AMPS  
BLOWER  
MOTOR  
FLA  
CIRCUIT  
AMPACITY  
(AMPS)  
BRKR1  
SIZE  
(AMPS)  
100  
100  
125  
175  
200  
100  
100  
150  
175  
225  
50  
VOLTAGE  
RLA  
LRA  
MODEL KW STAGES AMPS  
EACH  
EACH  
NAGE)  
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  
-
-
85.4  
85.4  
13.5  
27.0  
40.6  
54.1  
0.0  
1
2
2
2
-
37.5  
75.1  
112.6  
150.1  
-
43.3  
86.6  
129.9  
173.2  
-
208  
230  
460  
575  
208  
230  
460  
575  
19.2  
19.2  
9.6  
124  
124  
62  
4.5  
4.3  
2.2  
1.7  
4.5  
4.3  
2.2  
1.7  
14.0  
14.0  
7.0  
0.0  
0.0  
0.0  
0.0  
0.0  
0.0  
0.0  
0.0  
111.2  
158.4  
167.7  
85.0  
18.0  
36.0  
54.0  
72.0  
0.0  
1
2
2
2
-
85.0  
125.8  
147.4  
190.7  
42.6  
180  
(15)  
18.0  
36.0  
54.0  
72.0  
0.0  
1
2
2
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  
-
42.6  
62.9  
73.7  
50  
70  
90  
95.4  
33.7  
33.7  
110  
40  
40  
18.0  
36.0  
54.0  
72.0  
0.0  
1
2
2
2
-
7.7  
50  
5.3  
49.9  
58.6  
75.9  
50  
70  
90  
110.3  
110.3  
118.2  
165.4  
174.7  
109.9  
109.9  
132.8  
154.4  
197.7  
55.1  
125  
125  
125  
175  
200  
125  
125  
150  
175  
225  
60  
13.5  
27.0  
40.6  
54.1  
0.0  
1
2
2
2
-
19.2  
19.2  
9.6  
124  
124  
62  
19.6  
19.6  
9.8  
18.0  
36.0  
54.0  
72.0  
0.0  
1
2
2
2
-
43.3  
86.6  
129.9  
173.2  
-
21.7  
43.3  
65.0  
86.6  
-
240  
(20)  
18.0  
36.0  
54.0  
72.0  
0.0  
1
2
2
2
-
55.1  
60  
66.4  
77.2  
98.6  
70  
90  
110  
50  
50  
44.5  
44.5  
53.6  
18.0  
36.0  
54.0  
72.0  
1
2
2
2
17.3  
34.6  
52.0  
69.3  
7.7  
50  
8.2  
60  
62.2  
79.5  
70  
90  
NOTE 1: HACR Type per NEC.  
24  
Unitary Products Group  
 
262259-YTG-B-0107  
TABLE 17: DM 300 ELECTRICAL DATA STANDARD MOTOR WITHOUT POWERED CONVENIENCE OUTLET  
COMPRESSORS  
HEATER OPTION  
MAX.  
FUSE/  
ID  
MIN.  
MODEL  
(TON-  
OD FAN  
MOTORS  
FLA EACH  
CONV  
OUTLET  
AMPS  
BLOWER  
MOTOR  
FLA  
CIRCUIT  
AMPACITY  
(AMPS)  
BRKR1  
SIZE  
(AMPS)  
150  
150  
150  
200  
200  
150  
150  
150  
175  
225  
80  
VOLTAGE  
RLA  
LRA  
MODEL KW STAGES AMPS  
EACH  
EACH  
NAGE)  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
-
-
-
129.3  
129.3  
129.3  
175.9  
185.2  
126.9  
126.9  
140.8  
162.4  
205.7  
63.5  
13.5  
27.0  
40.6  
54.1  
-
1
2
2
2
-
37.5  
74.9  
112.7  
150.2  
-
43.3  
86.6  
129.9  
173.2  
-
208  
230  
460  
575  
41.0  
41.0  
20.5  
17.3  
255  
255  
145  
102  
4.5  
4.3  
2.2  
1.7  
28.0  
26.0  
13.0  
10.0  
0.0  
0.0  
0.0  
0.0  
18.0  
36.0  
54.0  
72.0  
-
1
2
2
2
-
300  
(25)  
18.0  
36.0  
54.0  
72.0  
-
1
2
2
2
-
21.7  
43.3  
65.0  
86.6  
-
17.3  
34.6  
52.0  
69.3  
63.5  
70.4  
81.2  
80  
80  
90  
102.9  
52.3  
52.3  
110  
60  
60  
18.0  
36.0  
54.0  
72.0  
1
2
2
2
55.8  
64.5  
81.8  
60  
70  
90  
NOTE 1: HACR Type per NEC.  
TABLE 18: DM 300 ELECTRICAL DATA HIGH STATIC MOTOR WITHOUT POWERED CONVENIENCE OUTLET  
COMPRESSORS  
HEATER OPTION  
MAX.  
FUSE/  
ID  
MIN.  
MODEL  
(TON-  
OD FAN  
MOTORS  
FLA EACH  
CONV  
OUTLET  
AMPS  
BLOWER  
MOTOR  
FLA  
CIRCUIT  
AMPACITY  
(AMPS)  
BRKR1  
SIZE  
(AMPS)  
175  
175  
175  
200  
225  
175  
175  
175  
200  
250  
90  
VOLTAGE  
RLA  
LRA  
MODEL KW STAGES AMPS  
EACH  
EACH  
NAGE)  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
-
-
-
139.9  
139.9  
141.9  
189.1  
198.4  
139.5  
139.5  
156.5  
178.2  
221.5  
69.8  
13.5  
27.0  
40.6  
54.1  
-
1
2
2
2
-
37.5  
74.9  
112.7  
150.2  
-
208  
230  
460  
575  
41.0  
41.0  
20.5  
17.3  
255  
255  
145  
102  
4.5  
4.3  
2.2  
1.7  
38.6  
38.6  
19.3  
15.4  
0.0  
0.0  
0.0  
0.0  
18.0  
36.0  
54.0  
72.0  
-
1
2
2
2
-
43.3  
86.6  
129.9  
173.2  
-
21.7  
43.3  
65.0  
86.6  
-
300  
(25)  
18.0  
36.0  
54.0  
72.0  
-
1
2
2
2
-
69.8  
90  
78.3  
89.1  
110.7  
57.7  
57.7  
90  
100  
125  
70  
70  
70  
18.0  
36.0  
54.0  
72.0  
1
2
2
2
17.3  
34.6  
52.0  
69.3  
62.6  
71.2  
88.5  
80  
100  
NOTE 1: HACR Type per NEC.  
Unitary Products Group  
25  
   
262259-YTG-B-0107  
TABLE 19: DM 180, 240 ELECTRICAL DATA WITH POWERED CONVENIENCE OUTLET  
COMPRESSORS  
HEATER OPTION  
MAX.  
FUSE/  
BRKR1  
SIZE  
ID  
MIN.  
CIRCUIT  
AMPACITY  
(AMPS)  
MODEL  
(TON-  
OD FAN  
MOTORS  
FLA EACH  
CONV  
OUTLET  
AMPS  
BLOWER  
MOTOR  
FLA  
VOLTAGE  
RLA  
LRA  
MODEL KW STAGES AMPS  
EACH  
EACH  
NAGE)  
(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  
-
-
95.4  
95.4  
110  
110  
125  
175  
200  
110  
110  
150  
175  
225  
50  
13.5  
27.0  
40.6  
54.1  
0.0  
18.0  
36.0  
54.0  
72.0  
0.0  
1
2
2
2
-
1
2
2
2
-
37.5  
75.1  
112.6  
150.1  
-
43.3  
86.6  
129.9  
173.2  
-
208  
230  
460  
575  
208  
230  
460  
575  
19.2  
19.2  
9.6  
124  
124  
62  
4.5  
4.3  
2.2  
1.7  
4.5  
4.3  
2.2  
1.7  
14.0  
14.0  
7.0  
10.0  
10.0  
5.0  
123.7  
170.9  
180.2  
95.0  
95.0  
138.3  
159.9  
203.2  
47.6  
180  
(15)  
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  
1
2
2
2
-
1
2
2
2
-
1
2
2
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  
-
47.6  
69.1  
80.0  
50  
70  
90  
101.6  
37.7  
37.7  
110  
45  
45  
7.7  
50  
5.3  
4.0  
54.9  
63.6  
80.9  
60  
70  
90  
120.3  
120.3  
130.7  
177.9  
187.2  
119.9  
119.9  
145.3  
166.9  
210.2  
60.1  
125  
125  
150  
200  
200  
125  
125  
150  
175  
225  
70  
19.2  
19.2  
9.6  
124  
124  
62  
19.6  
19.6  
9.8  
10.0  
10.0  
5.0  
18.0  
36.0  
54.0  
72.0  
0.0  
18.0  
36.0  
54.0  
72.0  
0.0  
1
2
2
2
-
1
2
2
2
-
43.3  
86.6  
129.9  
173.2  
-
21.7  
43.3  
65.0  
86.6  
-
240  
(20)  
60.1  
70  
72.6  
83.5  
105.1  
48.5  
48.5  
80  
90  
110  
50  
50  
18.0  
36.0  
54.0  
72.0  
1
2
2
2
17.3  
34.6  
52.0  
69.3  
7.7  
50  
8.2  
4.0  
58.6  
60  
67.2  
84.5  
70  
90  
NOTE 1: HACR Type per NEC.  
26  
Unitary Products Group  
 
262259-YTG-B-0107  
TABLE 20: DM 300 ELECTRICAL DATA STANDARD MOTOR WITH POWERED CONVENIENCE OUTLET  
COMPRESSORS  
HEATER OPTION  
MAX.  
FUSE/  
ID  
MIN.  
MODEL  
(TON-  
OD FAN  
MOTORS  
FLA EACH  
CONV  
OUTLET  
AMPS  
BLOWER  
MOTOR  
FLA  
CIRCUIT  
AMPACITY  
(AMPS)  
BRKR1  
SIZE  
(AMPS)  
175  
175  
175  
200  
200  
175  
175  
175  
175  
225  
80  
VOLTAGE  
RLA  
LRA  
MODEL KW STAGES AMPS  
EACH  
EACH  
NAGE)  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
-
-
-
139.3  
139.3  
141.2  
188.4  
197.7  
136.9  
136.9  
153.3  
174.9  
218.2  
68.5  
13.5  
27.0  
40.6  
54.1  
-
1
2
2
2
-
37.5  
74.9  
112.7  
150.2  
-
43.3  
86.6  
129.9  
173.2  
-
208  
230  
460  
575  
41.0  
41.0  
20.5  
17.3  
255  
255  
145  
102  
4.5  
4.3  
2.2  
1.7  
28.0  
26.0  
13.0  
10.0  
10.0  
10.0  
5.0  
18.0  
36.0  
54.0  
72.0  
-
1
2
2
2
-
300  
(25)  
18.0  
36.0  
54.0  
72.0  
-
1
2
2
2
-
21.7  
43.3  
65.0  
86.6  
-
17.3  
34.6  
52.0  
69.3  
68.5  
76.6  
87.5  
80  
80  
90  
109.1  
56.3  
56.3  
110  
70  
70  
18.0  
36.0  
54.0  
72.0  
1
2
2
2
4.0  
60.8  
69.5  
86.8  
70  
70  
90  
NOTE 1: HACR Type per NEC.  
TABLE 21: DM 300 ELECTRICAL DATA HIGH STATIC MOTOR WITH POWERED CONVENIENCE OUTLET  
COMPRESSORS  
HEATER OPTION  
MAX.  
FUSE/  
ID  
MIN.  
MODEL  
(TON-  
OD FAN  
MOTORS  
FLA EACH  
CONV  
OUTLET  
AMPS  
BLOWER  
MOTOR  
FLA  
CIRCUIT  
AMPACITY  
(AMPS)  
BRKR1  
SIZE  
(AMPS)  
175  
175  
175  
225  
225  
175  
175  
175  
225  
250  
90  
VOLTAGE  
RLA  
LRA  
MODEL KW STAGES AMPS  
EACH  
EACH  
NAGE)  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
None  
E18  
E36  
E54  
E72  
-
-
-
149.9  
149.9  
154.4  
201.6  
210.9  
149.5  
149.5  
169.0  
190.7  
234.0  
74.8  
13.5  
27.0  
40.6  
54.1  
-
1
2
2
2
-
37.5  
74.9  
112.7  
150.2  
-
208  
230  
460  
575  
41.0  
41.0  
20.5  
17.3  
255  
255  
145  
102  
4.5  
4.3  
2.2  
1.7  
38.6  
38.6  
19.3  
15.4  
10.0  
10.0  
5.0  
18.0  
36.0  
54.0  
72.0  
-
1
2
2
2
-
43.3  
86.6  
129.9  
173.2  
-
21.7  
43.3  
65.0  
86.6  
-
300  
(25)  
18.0  
36.0  
54.0  
72.0  
-
1
2
2
2
-
74.8  
90  
84.5  
95.3  
117.0  
61.7  
61.7  
90  
110  
125  
70  
70  
70  
18.0  
36.0  
54.0  
72.0  
1
2
2
2
17.3  
34.6  
52.0  
69.3  
4.0  
67.6  
76.2  
93.5  
90  
100  
NOTE 1: HACR Type per NEC.  
Unitary Products Group  
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262259-YTG-B-0107  
1
TABLE 22: DM VOLTAGE LIMITATIONS  
VOLTAGE LIMITATIONS  
VOLTAGE  
POWER  
SUPPLY  
MIN.  
MAX.  
VOLTAGE  
208/230-3-60  
187  
253  
LIMITATIONS  
414  
518  
506  
630  
460-3-60  
575-3-60  
1. Utilization Range “A” in accordance with ARI Standard  
110.  
TABLE 23: PHYSICAL DATA  
MODELS  
DM180  
DM240  
DM300  
CENTRIFUGAL BLOWER (Dia. x Wd.)  
FAN MOTOR HP, STANDARD/HI STATIC  
ROWS DEEP  
15x15  
5.0  
18x15  
7.5  
3
18x15  
10/15  
4
EVAPORATOR  
BLOWER  
3
EVAPORATOR COIL FINS PER INCH  
13.5  
20  
FACE AREA (Sq. Ft.)  
15.5  
20.52  
PROPELLER DIA. (In.) (Each)  
30  
CONDENSER FAN  
(Two Per Unit)  
FAN MOTOR HP  
NOM. CFM TOTAL  
ROWS DEEP  
(Each)  
(Each)  
1
6,500  
2
7,200  
2
7,200  
2
20  
43.3  
-
CONDENSER  
COIL  
FINS PER INCH  
FACE AREA (Sq. Ft.)  
13  
36  
1
20  
43.3  
-
5 TON HERMETIC (RECIP.)  
COMPRESSOR  
(Qty. Per Unit)  
11  
10 TON TANDEM (RECIP.)  
2
-
12.5 TON (SCROLL)  
-
-
2
QUANTITY PER UNIT (12" X 24" X 2" or 4”)  
QUANTITY PER UNIT (16" X 20" X 2" or 4”)  
QUANTITY PER UNIT (16" X 25" X 2" or 4”)  
QUANTITY PER UNIT (18" X 24" X 2" or 4”)  
TOTAL FACE AREA (Sq. Ft.)  
-
-
-
-
4
4
FILTERS  
CHARGE  
-
4
4
5
-
-
15  
17/8  
8/8  
1900  
2100  
2140  
20  
24  
18/0  
18/0  
2291  
2491  
2531  
SYSTEM No.1  
SYSTEM No. 2  
COOLING ONLY  
18/0  
18/0  
2100  
2300  
2340  
160  
REFRIGERANT  
22 (Lb./Oz.)  
BASIC UNIT  
N24  
N32  
GAS / ELECTRIC  
ECONOMIZER  
ECONOMIZER WITH  
POWER EXHAUST  
245  
MOTORIZED DAMPER  
150  
25  
30  
35  
40  
10  
18 KW  
36 KW  
54 KW  
72 KW  
ELECTRIC HEATER  
OPERATING  
WEIGHTS  
(LBS.)  
HOT GAS BYPASS  
SUPPLY FAN VFD  
ROOF CURB  
175  
200  
185  
45  
185  
220  
BAROMETRIC DAMPER  
ECONOMIZER / MOTORIZED  
DAMPER RAIN HOOD  
ECONOMIZER / POWER  
EXHAUST RAIN HOOD  
WOOD SKID  
55  
90  
220  
1. This compressor will be energized first.  
28  
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TABLE 24: SUPPLY FAN VFD WEIGHTS, IN LBS.  
TABLE 25: ELECTRIC HEAT CORRECTION  
FACTORS  
SUPPLY FAN MOTOR  
230V  
460V  
575V  
NOMINAL VOLTAGE  
VOLTAGE  
kW CAP. MULTIPLIER  
W/O MANUAL BYPASS  
25  
30  
30  
30  
25  
30  
30  
30  
30  
30  
35  
40  
208  
230  
460  
575  
1.00  
0.92  
0.92  
0.92  
5.0 hp  
7.5 hp  
208  
240  
480  
600  
10.0 hp  
15.0 hp  
W/MANUAL BYPASS  
5.0 hp  
30  
35  
35  
40  
30  
35  
35  
35  
35  
35  
40  
45  
7.5 hp  
10.0 hp  
15.0 hp  
CONTROL WIRING  
COOLING / HEATING (24 VOLT THERMOSTAT)  
THERMOSTAT1  
TERMINALS  
UNIT TERMINAL  
BLOCK 1TB2  
COOLING ONLY (24 VOLT THERMOSTAT)  
THERMOSTAT1  
R
RH  
RC  
Y1  
Y2  
TERMINALS  
Y1  
Y2  
W1  
UNIT TERMINAL  
BLOCK 1 TB2  
RC  
RH  
R
ADD  
JUMPER  
W2  
G
Y1  
Y2  
Y1  
Y2  
ADD  
JUMPER  
W1  
W2  
B
W1  
W2  
G
W1  
W2  
24 VOLT  
TRANSFORMER  
X
3
3
A1  
A2  
Y3  
G
G
B
X
B
124 Volt Thermostat 2TH04701024 or 2TH04701524  
(with Subbase 2TB04700324).  
LED1  
24 VOLT  
TRANSFORMER  
LED2  
4
A1  
A2  
NOT USED  
2Terminal strip 1TB - located on relay board in 24-volt section  
of the unit control box.  
4
COM  
A1  
3Second stage heating is not required on units with a single stage  
electric heater.  
ADD  
JUMPER  
A2  
T
POWER WIRING  
T
L1  
Refer to the  
TO REMOTE SENSOR  
2THO4702224 IF USED  
LINE VOLTAGE  
TERMINAL  
BLOCK 2TB  
ELECTRICAL DATA  
tables to size the  
power wiring, the  
fuses and the  
L2  
L3  
1Electronic programmable thermostat 2ET04700224 (includes subbase).  
2Terminal block 1TB- located on relay board in 24-volt section of the unit control box.  
3Second stage heating is not required on units with a single stage electric heater.  
4Terminals A1 and A2 provide a relay output to close the outdoor economizer dampers  
when the thermostat switches to the set-back position.  
IN CONTROL BOX  
disconnect switch.  
GROUND LUG  
NOTE: Fans switch must be in "ON" position for minimum ventilation during heater operation.  
FIGURE 3 - TYPICAL DM FIELD WIRING DIAGRAM  
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BLOWER ACCESS  
(Location Of  
Optional VFD)  
ECONOMIZER / MOTORIZED DAMPER,  
FIXED OUTDOOR INTAKE AIR AND  
POWER EXHAUST RAIN HOODS  
(See detail "Y")  
FIELD-SUPPLIED  
BLOWER MOTOR ACCESS  
(Location Of Optional  
VFD Bypass)  
DISCONNECT SWITCH  
COMPRESSOR  
ACCESS  
LOCATION  
BLOWER  
COMPARTMENT  
ACCESS  
(Auxiliary)  
COIL  
GUARD  
DOT PLUG  
(For pressure  
Drop Reading)  
48-5/8"(15 TON)  
52-5/8" (20, 25 TON)  
ELECTRIC/  
GAS HEAT  
ACCESS  
CONDENSER  
COILS  
VENT AIR  
OUTLET  
HOODS  
21"  
5"  
7-1/8"  
COMBUSTION  
AIR INLET  
HOOD  
6-3/8"  
9-3/4"  
5-7/8"  
92"  
)
(C)  
(A)  
GAS SUPPLY  
ENTRY  
CONTROL WIRING  
ENTRY  
46-5/8"  
CONTROL BOX  
ACCESS  
11-1/2"  
(B)  
35"  
POWER WIRING  
ENTRY  
BOTTOM SUPPLY  
AND RETURN  
AIR OPENINGS  
(See Note)  
FRONT  
VIEW  
RETURN  
AIR  
3-3/4"  
33"  
SUPPLY  
AIR  
2-3/4" 21-1/2"  
11-1/8"  
All dimensions are in inches. They are  
subject to change without notice. Certified  
dimensions will be provided upon request.  
UNIT BASE WITH RAILS  
(B)  
(D)  
Shown separately to illustrate  
Bottom Duct openings, Power  
and Gas Piping Connection  
locations  
POWER WIRING  
ENTRY  
GAS SUPPLY  
ENTRY  
(A)  
CONTROL WIRING  
ENTRY  
8-1/8"  
NOTE:  
46-5/8"  
For curb mounted units, refer to the curb hanger  
dimensions of the curb for the proper size of the  
supply and return air duct connections.  
9-1/4"  
12-1/2"  
9-3/4"  
FIGURE 4 - UNIT DIMENSIONS & CLEARANCES 15, 20 & 25 TON  
TABLE 26: UTILITIES ENTRY DATA  
OPENING SIZE  
HOLE  
USED FOR  
(DIA.)  
1-1/8” KO  
Side  
Bottom  
Side  
Control Wiring  
A
3/4” NPS (Fem.)  
3-5/8” KO  
B
Power Wiring  
3” NPS (Fem.)  
Bottom  
1
2-3/8” KO  
C
D
Gas Piping (Front)  
,
1
2
1-11/16” Hole  
Gas Piping (Bottom)  
1. One-inch gas piping NPT required.  
2. Opening in the bottom of the unit can be located by the slice in  
the insulation.  
NOTE: All entry holes should be field sealed to prevent rain  
water entry into the building.  
30  
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262259-YTG-B-0107  
EVAPORATOR  
SECTION  
DOT PLUG  
(For pressure  
drop reading)  
40-3/8"  
FILTER  
ACCESS  
SUPPLY  
AIR  
RETURN  
AIR  
COMPRESSOR  
ACCESS  
OUTDOOR  
AIR  
40-1/2"  
SUPPLY AIR  
ACCESS  
18-5/8"  
1" NPT FEMALE  
COND. DRAIN  
CONNECTION  
27-3/4"  
Dimensions listed are for side  
5-1/8"  
RETURN AIR  
ACCESS  
duct flange openings; see  
Field Accessories for Side  
Duct Flange Kit.  
OUTDOOR AIR  
COMPARTMENT  
ACCESS  
28-5/8” (15 TON)  
39-5/8" (20, 25 TON)  
REAR  
VIEW  
FIGURE 5 - 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  
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NOTE: ELEC / ELEC Models: Units and ductwork are  
TABLE 27: MINIMUM CLEARANCES  
approved for zero clearance to combustible material  
when equipped with electric heaters.  
LOCATION  
CLEARANCE  
36”  
Front  
24” (Less Economizer)  
49” (With Economizer)  
Rear  
GAS / ELEC Models: A 1” clearance must be  
provided between any combustible material and the  
supply air ductwork for a distance of 3 feet from the  
unit.  
24” (Less Economizer)  
Left Side (Filter Access)  
Right Side (Cond. Coil)  
3
36” (With Economizer)  
36”  
0”  
1
Below Unit  
The products of combustion must not be allowed to  
accumulate within a confined space and recirculate.  
72” With 36” Maximum  
Horizontal Overhang (For  
Condenser Air Discharge)  
2
Above Unit  
Locate unit so that the vent air outlet hood is at least:  
1. Units may be installed on combustible floors made from wood or  
class A, B, or C roof covering material.  
• Three (3) feet above any force air inlet located  
within 10 horizontal feet (excluding those integral to  
the unit).  
2. Units must be installed outdoors. Overhanging structures or  
shrubs should not obstruct condenser air discharge outlet.  
3. If economizer is factory installed, the unassembled rain hood  
must be removed from its ride along position in front of evapora-  
tor coil, or in the outdoor air compartment, prior to final installa-  
tion.  
• Four (4) feet below, four horizontal feet from, or one  
foot above any door or gravity air inlet into the  
building.  
• Four (4) feet from electric and gas meters,  
regulators and relief equipment.  
ECONOMIZER  
MOTORIZED  
DAMPER  
POWER EXHAUST  
RAIN HOOD  
(on Return Air Compartment)  
SUPPLY AIR  
COMPARTMENT  
RAIN HOOD  
ECONOMIZER / MOTORIZED DAMPER  
AND POWER EXHAUST RAIN HOODS  
(on Outdoor Air Compartment)  
FIXED  
OUTDOOR AIR  
INTAKE HOOD  
(located on  
Return Air  
Compartment)  
36-5/8”  
1“ CONDENSATE  
DRAIN  
(Must be trapped)  
16-1/8”  
5”  
28-3/16”  
92”  
REAR VIEW  
LH VIEW  
DETAIL “Y”  
UNIT WITH RAIN HOODS  
FIGURE 6 - UNIT DIMENSIONS DM180, 240 & 300 (RAINHOOD)  
32  
Unitary Products Group  
   
262259-YTG-B-0107  
FIGURE 7 - CENTER OF GRAVITY  
FIGURE 8 - TYPICAL UNIT APPLICATIONS  
Unitary Products Group  
33  
   
262259-YTG-B-0107  
B
E
F
C
D
A
A
F
R
O
N
T
F
R
O
N
T
C
B
D
FIGURE 9 - FOUR AND SIX POINT LOADS  
TABLE 28: FOUR AND SIX POINT LOADS  
Total  
4 Point Loads (lbs)  
Unit Size  
Shipping  
Weight  
A
B
C
D
180 Gas  
240 Gas  
300 Gas  
180 Elec  
240 Elec  
300 Elec  
2300  
2500  
2531  
2100  
2300  
2331  
539  
538  
593  
492  
295  
546  
563  
563  
645  
514  
517  
594  
612  
715  
674  
558  
658  
621  
586  
684  
619  
536  
630  
570  
Total  
6 Point Loads (lbs)  
Unit Size  
Shipping  
Weight  
A
B
C
D
E
F
180 Gas  
240 Gas  
300 Gas  
180 Elec  
240 Elec  
300 Elec  
2300  
2500  
2531  
2100  
2300  
2331  
351  
334  
390  
320  
307  
359  
367  
350  
412  
335  
322  
379  
392  
426  
436  
358  
392  
402  
416  
502  
456  
380  
462  
420  
399  
481  
430  
364  
442  
396  
375  
407  
407  
343  
375  
375  
34  
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262259-YTG-B-0107  
MIN. ROOF OPENING:  
SUPPLY AIR*  
BACK OF UNIT  
39-7/8" WIDE X 61-7/8" Long  
OUTDOOR COIL  
END OF UNIT  
RETURN AIR*  
DUCT SUPPORT RAILS  
4"  
2"  
22-3/4"  
2"  
4"  
33-1/8"  
14-1/4" (15 Ton)  
25-1/4" (20, 25 Ton)  
35-7/8"  
84"  
115-5/16" (15 Ton)  
126-1/4" (20, 25 Ton)  
4"  
*Supply and Return Air (including duct support rails)  
as shown, are typical for bottom duct applications.  
DUCT SIZES:  
Supply Air = 22-1/2" x 35-5/8"  
Return Air = 32-7/8" x 35-5/8"  
FRONT  
OF  
For location of horizontal duct applications  
(on back of unit), refer to Unit Dimension details.  
UNIT  
FIGURE 10 -UNIT ROOF CURB DIMENSIONS  
2. The 58-1/2” overall dimension of the ducts allows duct-  
work penetration between roof joists that are spaced on  
72” centers.  
NOTE: Ducts can be installed into the curb from the roof. All  
electrical and gas line connections can be made  
inside the curb.  
FIGURE 11 -ROOF CURB DUCT OPENINGS  
DIMENSION  
1. The 2” space between the ducts allows for “jumping” an  
existing roof joist.  
Unitary Products Group  
35  
   
262259-YTG-B-0107  
THERMOSTAT  
TERMINALS  
CONTROL  
TERMINAL  
BLOCK  
W1  
W1  
W2  
Y1  
G
1
W2  
Y1  
2
Y2  
OCC  
P
G
R
C
P1  
Y2  
X
Smoke  
Detector  
R
Jumper 3  
R
SD  
SD  
C
4
SD  
C
RC  
5
OCC  
24 VAC  
Class 2  
6
X
TERMINALS ON  
A LIMITED  
NUMBER OF  
THERMOSTATS  
1
2
3
4
5
6
Second stage heating not required on single stage heating units.  
Second stage cooling not required on single stage cooling units.  
Jumper is required if there is no Smoke Detector circuit.  
Jumper is required for any combination of R, RC, or RH.  
OCC is an output from the thermostat to indicate the Occupied condition.  
X is an input to the thermostat to display Error Status conditions.  
FIGURE 13 -TYPICAL S implicity® CONTROL WIRING DIAGRAM  
36  
Unitary Products Group  
 
262259-YTG-B-0107  
ment. 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  
CGA listed, classified to ANSIZ21.47 standards, UL 1995/  
CAN/CSA No. 236-M90 conditions.  
GUIDE SPECIFICATIONS  
GENERAL  
Units shall be manufactured by York International Unitary  
Products Group in an ISO 9001 certified facility.  
York's Sunline 2000™ 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, cool-  
ing with gas heat and cooling with electric heat models are  
available with a wide variety of factory-mounted options and  
field-installed accessories to make them suitable for almost  
every application. All units are self-contained and assembled  
on full perimeter base rails with holes in the four corners for  
overhead rigging. Every unit is completely piped, wired,  
charged and tested at the factory to simplify the field installa-  
tion 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 hori-  
zontal 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  
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 hours salt spray test per ASTM-B117  
standards. Indoor blower section shall be insulated with a min-  
imum 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 air-  
tight. Units filter track shall be designed to accommodate  
either 2" or 4" filters. Fan performance measuring ports shall  
be provided on the outside of the cabinet to allow accurate air  
measurements of evaporator fan performance without remov-  
ing panels or creating air by-pass of the coils. Condensate  
pan shall be internally sloped and conform to ASHRAE 62-89  
self-draining standards. Condensate connection shall be a  
minimum of 1" I.D. female and be a ridged mount connection.  
Unit shall incorporate a fixed outdoor air damper with an out-  
door air intake opening covered with a bird screen and a rain  
hood painted to match the exterior of the unit.  
adjusted to meet the exact requirements of the job.  
Each unit shall have 2 condenser fan motors. A high speed  
drive accessory is available for applications with a higher  
CFM and/or static pressure requirement. All compressors  
include crankcase heat and internal pressure relief. Every  
refrigerant circuit includes an expansion valve, a liquid line fil-  
ter-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 addi-  
tional set of pin connectors to simplify the interface of addi-  
tional field controls. All units have long lasting powder paint  
cabinets with 1000 hour salt spray test approval under  
ASTM-B117 procedures. All models are CSA approved. All  
models include a 1-year limited warranty on the complete  
unit. Compressors and electric heater elements carry an  
additional 4-year warranty. Aluminized steel tubular heat  
exchangers carry an additional 9-year warranty.  
INDOOR (EVAPORATOR) FAN ASSEMBLY  
Fan shall be a belt drive assembly and include an adjustable-  
pitch motor pulley. Job site selected (B.H.P.) brake horse-  
power shall not exceed the motors nameplate horsepower  
rating, plus the service factor. Units shall be designed not to  
operate above service factor. Fan wheel shall be double-inlet  
type with forward-curved blades, dynamically balanced to  
operate smoothly throughout the entire range of operation.  
Airflow design shall be constant air volume.  
A variable air volume (VAV) option using a variable frequency  
drive (VFD) is available for applications requiring a constant  
supply duct static pressure. Units equipped for VAV shall be  
controlled by a duct pressure transducer with a 0 - 5” WC  
pressure range. The pressure transducer shall provide a 0 - 5  
VDC output signal to a VAV control board which, in turn shall  
provide a 2 - 10 VDC speed reference signal to the VFD.  
Units equipped with VFD’s shall have factory-installed man-  
ual bypass as an option.  
DESCRIPTION  
Units shall be factory-assembled, single packaged, DM***N  
Electric Cooling/Gas Heat, DM***C/E Electric Cooling/  
Optional Electric Heat, designed for outdoor mounted instal-  
lation. The 15, 20 and 25 ton units shall have minimum EER  
ratings of 8.5.  
OUTDOOR (CONDENSER) FAN ASSEMBLY  
The outdoor fans shall be of the direct-driven propeller type,  
discharge air vertically, have aluminum blades riveted to cor-  
rosion resistant steel spider brackets and shall be dynami-  
cally balanced for smooth operation. The 2 outdoor fan  
motors shall be totally enclosed with permanently lubricated  
They shall have built-in field convertible duct connections for  
down discharge supply/return or horizontal discharge supply/  
return, and be available with factory installed options or field  
installed accessories. The units shall be factory wired, piped,  
charged with R-22 refrigerant and factory tested prior to ship-  
Unitary Products Group  
37  
 
262259-YTG-B-0107  
bearings, internally protected against overload conditions and  
staged independently.  
diagnostic code that indicates which safety  
switch has tripped.  
REFRIGERANT COMPONENTS  
d. Unit shall incorporate "AUTO RESET" compressor  
over temperature, over current protection.  
Compressors:  
e. Unit shall operate with conventional thermostat  
designs and have a low voltage terminal strip for  
easy hook-up.  
a. Shall be Scroll (25T only) compressors internally  
protected with internal high-pressure relief and over  
temperature protection.  
f. Unit control board shall have on-board diagnostics  
and fault code display.  
b. Shall have internal spring isolation and sound muf-  
fling to minimize vibration and noise, and be exter-  
nally isolated on a dedicated, independent  
mounting.  
g. Standard controls shall include anti-short cycle and  
low voltage protection, and permit cooling operation  
down to 0 °F.  
Coils:  
h. Control board shall monitor each refrigerant safety  
switch independently.  
a. Evaporator and condenser coils shall have alumi-  
num plate fins mechanically bonded to seamless  
internally enhanced copper tubes with all joints  
brazed. Special Phenolic coating shall be available  
as a factory option.  
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.  
b. Evaporator and Condenser coils shall be of the  
direct expansion, draw-thru, design.  
GAS HEATING SECTION (DM***N MODELS)  
Shall be designed with induced draft combustion with post  
purge logic and energy saving direct spark ignition, redun-  
dant 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 fol-  
lowing minimum protection:  
Refrigerant Circuit and Refrigerant Safety Components shall  
include:  
a. Balance-port thermostatic expansion valve with  
independent circuit feed system.  
b. Filter drier/strainer to eliminate any moisture or for-  
eign matter.  
c. Accessible service gage connections on both suc-  
tion 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 15° F  
of sub-cooling at design conditions.  
a. Primary and auxiliary high-temperature limit  
switches.  
e. All models shall have two independent circuits.  
f. Hot gas bypass option shall be factory-installed on  
compressor #1 discharge line to provide cooling in  
low-load applications. HGBP shall be a standard  
feature on VAV models and an optional feature on  
CV models.  
b. Induced draft motor speed sensor.  
c. Flame roll out switch (automatic reset).  
d. Flame proving controls. Unit shall have two inde-  
pendent stages of capacity.  
UNIT CONTROLS  
ELECTRIC HEATING (DM***C/E MODELS)  
a. Unit shall be complete with self-contained low-volt-  
age control circuit protected by a resettable circuit  
breaker on the 24-volt transformer side.  
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).  
b. Unit shall incorporate a lockout circuit which pro-  
vides reset capability at the space thermostat or  
base unit, should any of the following standard  
safety devices trip and shut off compressor.  
c. Loss-of-charge/Low-pressure switch.  
1. High-pressure switch.  
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 0° F outdoor  
2. Freeze-protection thermostat, evaporator coil. If  
any of the above safety devices trip, a LED  
(light-emitting diode) indicator shall flash a  
38  
Unitary Products Group  
262259-YTG-B-0107  
temperature. Unit shall be provided with fan time delay to  
prevent cold air delivery before heat exchanger warms up  
(Gas heat only).  
OTHER PRE-ENGINEERED ACCESSORIES AVAILABLE  
ROOF CURB - 14" high, full perimeter curb with wood  
nailer (shipped knocked-down).  
ELECTRICAL REQUIREMENTS  
100% BAROMETRIC RELIEF DAMPER - Contains a  
rain hood, air inlet screen, exhaust damper and mount-  
ing hardware. Used to relieve internal air pressure  
through the unit.  
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.  
PROPANE CONVERSION KIT - Contains new orifices  
and gas valve parts to convert from natural to L.P. gas.  
One per unit required.  
STANDARD LIMITED WARRANTIES  
HIGH ALTITUDE - NATURAL GAS - Contains orifices  
required for applications between 2000 and 6000 feet  
altitude.  
Compressor 5 Years  
Heat Exchanger 10 Years  
Electric Heat Element 5 Years  
Other Parts 1 Year  
HIGH ALTITUDE - PROPANE GAS - Contains orifices  
required for applications between 2000 and 6000 feet  
altitude. Must be used with propane conversion kit.  
OPTIONAL OUTDOOR AIR (Shall be made available by  
either/or):  
BURGLAR BARS - Designed to work with above roof  
curbs, depending on unit model. Fits duct openings of  
curb supply and return air openings.  
ELECTRONIC ENTHALPY AUTOMATIC ECONO-  
MIZER - Outdoor and return air dampers that are inter-  
locked 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 potenti-  
ometer 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 condi-  
tioned space during normal operation. During econo-  
mizer 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 oper-  
ation shall be provided by an integral electronic enthalpy  
control that feeds input into the basic module. The out-  
door intake opening shall be covered with a rain hood  
that matches the exterior of the unit. Water eliminator/fil-  
ters shall be provided. Simultaneous economizer/com-  
pressor operation is also possible. Dampers shall fully  
close on power loss.  
SIDE DUCT FLANGE - Supply and return air duct  
flanges for side duct applications. Do not use on units  
with power exhaust.  
HIGH SPEED DRIVE - Includes blower pulley and belt  
for higher CFM and/or static pressure requirements.  
WOOD SKID - Allows unit to be handled with 90" forks.  
ECONOMIZER/MOTORIZED DAMPER RAIN HOOD  
(DMN/E/C300 only) - Contains all hood panels and the  
hardware for assembling.  
ANTI-RECYCLE TIMER - Assures 5-minute off time  
between compressor cycles.  
COIL GUARD KIT - Guard for cooling coil.  
OTHER FACTORY INSTALLED OPTIONS  
POWER EXHAUST OPTION - To work in conjunction  
with economizers.  
STAINLESS STEEL HEAT EXCHANGER  
STAINLESS STEEL DRAIN PAN  
MOTORIZED OUTDOOR AIR DAMPERS - Outdoor and  
return air dampers that are interlocked and positioned by  
a 2-position, spring-return damper actuator. The maxi-  
mum 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 posi-  
tions - regardless of the outdoor air enthalpy. Dampers  
return to the fully closed position when the indoor fan  
motor is de-energized. Dampers shall fully close on  
power loss.  
TECHNICOAT PHENOLIC COATED CONDENSER  
AND EVAPORATOR COIL  
ELECTRONIC SINGLE ENTHALPY ECONOMIZER  
DIRTY FILTER SWITCH  
PHASE MONITOR  
COIL GUARD  
POWERED GFI CONVENIENCE OUTLET  
NON-POWERED GFI CONVENIENCE OUTLET  
BAS CONTROLS (S implicity® INTELLI-Comfort™ CPC,  
JOHNSON, HONEYWELL, NOVAR)  
BAS READY ECONOMIZER (BELIMO ACTUATOR  
WITHOUT A CONTROLLER)  
Unitary Products Group  
39  
HINGED FILTER DOOR ACCESS AND TOOLESS  
ACCESS PANELS  
4" PLEATED FILTERS  
DISCONNECT SWITCH  
HIGH SPEED DRIVE  
SUPPLY AIR SMOKE DETECTOR  
RETURN AIR SMOKE DETECTOR  
2" THROW AWAY FILTERS  
Subject to change without notice. Printed in U.S.A.  
262259-YTG-B-0107  
Copyright © 2007 by Unitary Products. All rights reserved.  
Supersedes: 262259-YTG-A-0706  
Unitary  
Products  
Group  
5005  
York  
Drive  
Norman  
OK  
73069  

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