Lennox LGH092H4B, LGH094U4E, LGH102H4B, LGH092H4M, LGH120H4B, LGH122U4E, LGH152U4E, LGH094U4M, LGH120H4M, LGH122U4M, LGH150S4B, LGH152U4M, LGH102H4M, LGH150S4M Unit Information
Specifications and Main Features
Frequently Asked Questions
User Manual
Corp. 1008-L2
Service Literature
Revised 5/2015
LGH092H through 152U
The LGH092H, 094U, 102H, 120H, 122U, 150S and
152U units are configure to order units (CTO) with a wide
selection of factory-installed options. Units are avail
able in 130,000, 180,000 Btuh or 240,000 Btuh (38.1,
52.7 or 70.3 kW) heating inputs. Gas heat sections are
designed with Lennox' aluminized steel tube heat ex
changers with stainless steel as an option.
Cooling capacities range from 7.5 to 12.5 tons (38.1 to
70.3 kW). All units are equipped with two compressors.
Ultra-high efficiency units are available with an optional di
rect drive blower or belt drive blower equipped with a sup
ply air inverter. Standard and high efficiency units are
available with a belt drive blower equipped with an option
al supply air inverter. The blower will operate at lower
speeds when demand is low and increase to higher
speeds when demand is high.
The following examples show the model numbers of tenton units with all available blower options:
LGH120H4BHigh Efficiency Belt Drive
LGH120H4M High Efficiency Belt Drive with Inverter
LGH122U4M Ultra High Efficiency Belt Drive with Inverter
LGH122U4EUltra High Efficiency Direct Drive
Note - Ten-ton units are available in high and ultra high effi
ciencies only.
Standard and high efficiency units come standard with a
lightweight, all-aluminum condenser coil; optional, fin/
tube condenser coils are available. Ultra-high efficiency
units come standard with a tube/fin condenser coil.
Ultra high efficiency units come standard with two singlespeed compressors plumbed in tandem to form a single re
frigerant circuit.
Units are also designed for R410A refrigerant. See unit
nameplate. Operating pressures and pressure switch set
tings are significantly higher than R22 charged units. Ser
vice equipment must be rated for R410A.
Standard and high efficiency units offer mechanical cooling
down to 0°F when properly equipped. Ultra-high efficiency
units offer mechanical cooling down to 40°F.
All LGH units are designed to accept any of several differ
ent energy management thermostat control systems with
minimum field wiring. Factory or field provided control op
tions connect to the unit with jack plugs. When ”plugged in”
the controls become an integral part of the unit wiring.
Information contained in this manual is intended for use by
qualified service technicians only. All specifications are
subject to change. Procedures outlined in this manual are
presented as a recommendation only and do not super
sede or replace local or state codes.
LGH SERIES
7.5 to 12.5 ton
38.1 to 70.3 kW
If the unit must be lifted for service, rig unit by attaching four
cables to the holes located in the unit base rail (two holes at
each corner). Refer to the installation instructions for the
proper rigging technique.
3
3
Table of Contents
Options / AccessoriesPage 2.....................
SpecificationsPage 8............................
Blower TablesPage 14............................
Electrical DataPage 19...........................
Parts ArrangementPage 25.......................
I-Unit ComponentsPage 28.......................
II-Placement and InstallationPage 47...............
III-ChargingPage 47..............................
IV-Start Up - OperationPage 55....................
V-System Service Checks Page 57................
High AltitudePage 59.........................
VI-MaintenancePage 59..........................
VII-AccessoriesPage 60..........................
VIII-Belt Drive Supply Air InverterPage 67...........
IX-Direct Drive Supply Air BlowerPage 70...........
X-Staged Supply Air OperationPage 71.............
XI-Wiring and Operation SequencePage 72.........
WARNING
Improper installation, adjustment, alteration, service
or maintenance can cause property va, personal in
jury or loss of life. Installation and service must be
performed by a licensed professional HVAC installer
or equivalent, service agency, or the gas supplier
CAUTION
As with any mechanical equipment, contact with
sharp sheet metal edges can result in personal in
jury. Take care while handling this equipment and
wear gloves and protective clothing.
Conventional Fin/Tube Condenser Coil - E1GARD20B-113T04XXXX
Horizontal Discharge KitK1HECK00B-151W25XXXX
Return Air Adaptor Plate (for LC/LG/LH and TC/TG/TH unit replacement)C1CONV10B-154W96OXOXOXOX
NOTE - Catalog and model numbers shown are for ordering eld installed accessories.
OX - Congure To Order (Factory Installed) or Field Installed
O = Congure To Order (Factory Installed)
Control System - BACnet® Module - C0CTRL60AE1L59W51OXOXOXOX
®
Prodigy
Control System - LonTalk® Module - C0CTRL65FF154W27OXOXOXOX
®
Building Automation System- - -XXXX
®
ETM-2051 - E0CTRL30B1
Novar
Novar
®
LSE
64W73OXOXOXOX
FactoryOOOO
Dirty Filter SwitchE1SNSR55B-153W67OXOXOXOX
Fresh Air TemperingC1SNSR75AD158W63OXOXOXOX
Smoke Detector - Supply or Return (Power board and one sensor)C1SNSR44B-211K76OXOXOXOX
Smoke Detector - Supply and Return (Power board and two sensors)C1SNSR43B-211K80OXOXOXOX
INDOOR AIR QUALITY
Air Filters
High Efciency Air Filters
20 x 25 x 2 (Order 4 per unit)
Replacement Media Filter With Metal Mesh
MERV 8 - C1FLTR15B-150W61OXOXOXOX
MERV 13 - C1FLTR40B-152W41OXOXOXOX
C1FLTR30B-1-Y3063XXXX
Frame (includes non-pleated lter media)
Indoor Air Quality (CO
Sensor - Wall-mount, off-white plastic cover with LCD displayC0SNSR50AE1L77N39XXXX
) Sensors
2
Sensor - Wall-mount, off-white plastic cover, no displayC0SNSR52AE1L87N53XXXX
Sensor - Black plastic case with LCD display, rated for plenum
mounting
Sensor - Wall-mount, black plastic case, no display, rated for
plenum mounting
Sensor Duct Mounting Kit - for downow applicationsC0MISC19AE1-85L43XXXX
CO
2
Aspiration Box - for duct mounting non-plenum rated CO
(87N53 or 77N39)
20 amp non-powered, eld-wired (575V only) C1GFCI20FF167E01
Weatherproof Cover for GFIC1GFCI99FF110C89XXXX
Phase/Voltage Detection (Optional for CAV options only, furnished with staged blower option)FactoryOOOO
ECONOMIZER
Standard Economizer (Not for Title 24)
Standard Economizer
E1ECON15B-155W05OXOXOXOX
Downow or Horizontal - Includes Outdoor Air Hood and Downow
Barometric Relief Dampers with Exhaust Hood
Order Horizontal Barometric Relief Dampers separately
High Performance Economizer (Approved for California Title 24 Building Standards)
High Performance Economizer
E1ECON17B-110U59OXOXOXOX
Downow or Horizontal - Includes Outdoor Air Hood and Downow
Barometric Relief Dampers with Exhaust Hood
Order Horizontal Barometric Relief Dampers separately
Horizontal Barometric Relief Dampers
Horizontal Low Prole Barometric With Exhaust HoodLAGEDH03/1553K04XXXX
Economizer Controls (Not for Title 24)
Differential EnthalpyOrder 2 - C1SNSR64FF153W64OXOXOXOX
Sensible ControlSensor is FurnishedFactoryOOOO
Single EnthalpyC1SNSR64FF153W64OXOXOXOX
Global ControlSensor Field ProvidedFactoryOOOO
1
Lamps operate on 110-230V single-phase power supply. Step-down transformer may be ordered separately for 460V and 575V units. Alternately, 110V power supply
may be used to directly power the UVC ballast(s)
NOTE - Catalog and model numbers shown are for ordering eld installed accessories.
OX - Congure To Order (Factory Installed) or Field Installed
O = Congure To Order (Factory Installed)
X = Field Installed
Page 3
Unit Model No
092 102 120 150
OXOXOXOX
OPTIONS / ACCESSORIES - 092H, 102H, 120H, 150S
Item Description
Model
Number
Catalog
Number
OUTDOOR AIR
Outdoor Air Dampers With Outdoor Air Hood
MotorizedE1DAMP20B-163W60OXOXOXOX
ManualC1DAMP10B-153W48OXOXOXOX
POWER EXHAUST
Standard Static208/230V-3ph - K1PWRE10B-1Y53W44OXOXOXOX
460V-3ph - K1PWRE10B-1G53W45OXOXOXOX
575V-3ph - K1PWRE10B-1J53W46OXOXOXOX
®
HUMIDITROL
Humiditrol
CONDENSER REHEAT OPTION
®
Dehumidication Option (NOTE - Not available all-aluminum condenser coil.
FactoryOOOO
Conventional Fin/Tube condenser coil must be ordered as a factory option)
Line Communication Filter (external)C1C400D11A10F93XXXX
Transformer (6 kW)E1TRFM15AD3Y (208Y to 208 VAC Delta)11H71XXXX
E1TRFM15AD2Y (230 VAC Delta)11H28XXXX
E1TRFM15AD3G (460 VAC Delta or Wye)11H29XXXX
NOTE - Catalog and model numbers shown are for ordering eld installed accessories.
OX - Congure To Order (Factory Installed) or Field Installed
O = Congure To Order (Factory Installed)
X = Field Installed
Unit Model No
092 102 120 150
Page 4
OPTIONS / ACCESSORIES - 094U, 122U, 152U
Item Description
Model
Number
Catalog
Number
COOLING SYSTEM
Condensate Drain TrapPVC - C1TRAP20AD276W26OXOXOX
Copper - C1TRAP10AD276W27OXOXOX
Corrosion ProtectionFactoryOOO
Drain Pan Overow SwitchE1SNSR71AD168W88OXOXOX
Refrigerant TypeR-410AOOO
HEATING SYSTEM
Bottom Gas Piping KitC1GPKT01B-0154W95OXOXOX
Combustion Air Intake ExtensionsT1EXTN10AN119W51XXX
Gas Heat Input130,000 BtuhFactoryOOO
180,000 BtuhFactoryOOO
240,000 BtuhFactoryOOO
Low Temperature Vestibule Heater208/230V-3ph - C1LTVH10B-1Y55W91OXOXOX
Belt Drive supply air blower (With VFD Bypass Control)FactoryOOO
Belt Drive supply air blower (Without VFD Bypass Control)FactoryOOO
Motors -
Multi-Stage Air Volume supply air
Direct Drive ECM 3.75 hp FactoryOOO
Belt Drive (high efciency) - 2 hpFactoryOOO
Belt Drive (standard or high efciency) - 3 hpFactoryOOO
Belt Drive (standard efciency) - 5 hpFactoryOOO
Drive Kits
See Blower Data Tables for selection
Kit #1 590-890 rpmFactoryOOO
Kit #2 800-1105 rpm FactoryOOO
Kit #3 795-1195 rpmFactoryOOO
Kit #4 730-970 rpmFactoryOOO
Kit #5 940-1200 rpmFactoryOOO
Kit #6 1015-1300 rpmFactoryOOO
Kit #7 730-970 rpmFactoryOOO
Kit #8 940-1200 rpmFactoryOOO
Kit #9 1015-1300 rpmFactoryOOO
Kit #10 900-1135 rpmFactoryOOO
Kit #11 1040-1315 rpmFactoryOOO
Kit #12 1125-1425 rpmFactoryOOO
Blower Belt Auto-TensionerFactoryOOO
NOTE - Catalog and model numbers shown are for ordering eld installed accessories.
OX - Congure To Order (Factory Installed) or Field Installed
O = Congure To Order (Factory Installed)
X = Field Installed
Unit Model No
094122152
Page 5
OPTIONS / ACCESSORIES - 094U, 122U, 152U
Item Description
Model
Number
Catalog
Number
CABINET
Combination Coil/Hail GuardsE1GARD51BP113T06XXX
Horizontal Discharge KitK1HECK00B-151W25XXX
Return Air Adaptor Plate (for LC/LG and TC/TG/TH unit replacement)C1CONV10B-154W96OXOXOX
CONTROLS
Blower Proving SwitchC1SNSR35FF153W65OXOXOX
Commercial ControlsL Connection
System - BACnet
System - LonTalk
®
Building Automation SystemXXX
®
Module - C0CTRL60AE1L59W51OXOXOX
®
Module - C0CTRL65FF154W27OXOXOX
Dirty Filter SwitchE1SNSR55B-153W67OXOXOX
Fresh Air TemperingC1SNSR75AD158W63OXOXOX
General Purpose Control KitE1GPBK30C113J78XXX
Smoke Detector - Supply or Return (Power board and one sensor)C1SNSR44B-211K76OXOXOX
Smoke Detector - Supply and Return (Power board and two sensors)C1SNSR43B-211K80OXOXOX
INDOOR AIR QUALITY
Air Filters
High Efciency Air Filters
20 x 25 x 2 (Order 4 per unit)
Replacement Media Filter With Metal Mesh Frame (includes non-
MERV 8 - C1FLTR15B-150W61OXOXOX
MERV 13 - C1FLTR40B-152W41OXOXOX
C1FLTR30B-1-Y3063XXX
pleated lter media)
Indoor Air Quality (CO
) Sensors
2
Sensor - Wall-mount, off-white plastic cover with LCD displayC0SNSR50AE1L77N39XXX
Sensor - Wall-mount, off-white plastic cover, no displayC0SNSR52AE1L87N53XXX
Sensor - Black plastic case with LCD display, rated for plenum
mounting
Sensor - Wall-mount, black plastic case, no display, rated for plenum
mounting
CO
Sensor Duct Mounting Kit - for downow applicationsC0MISC19AE1-85L43XXX
2
Aspiration Box - for duct mounting non-plenum rated CO
(87N53 or 77N39)
Lamps operate on 110-230V single-phase power supply. Step-down transformer may be ordered separately for 460V and 575V units. Alternately, 110V power supply
may be used to directly power the UVC ballast(s)
ECONOMIZER
Standard Economizer (Not for Title 24)
NOTE - Catalog and model numbers shown are for ordering eld installed accessories.
OX - Congure To Order (Factory Installed) or Field Installed
O = Congure To Order (Factory Installed)
X = Field Installed
Page 6
Unit Model No
094122152
OXOX
OPTIONS / ACCESSORIES - 094U, 122U, 152U
Item Description
Standard Economizer
Model
Number
E1ECON15B-155W05OXOXOX
Catalog
Number
Downow or Horizontal - Includes Outdoor Air Hood and Downow
Barometric Relief Dampers with Exhaust Hood
Order Horizontal Barometric Relief Dampers separately
High Performance Economizer (Approved for California Title 24 Building Standards)
High Performance Economizer
E1ECON17B-110U59OXOXOX
Downow or Horizontal - Includes Outdoor Air Hood and Downow
Barometric Relief Dampers with Exhaust Hood
Order Horizontal Barometric Relief Dampers separately
Economizer Controls
Differential Enthalpy (Not for Title 24)Order 2 - C1SNSR64FF153W64OXOXOX
Sensible ControlSensor is FurnishedFactoryOOO
Single Enthalpy (Not for Title 24)C1SNSR64FF153W64OXOXOX
Global ControlSensor Field ProvidedFactoryOOO
Building Pressure ControlE1GPBK20C113J77XXX
Outdoor Air CFM ControlE1GPBK10C113J76XXX
Standard Static208/230V-3ph - K1PWRE10B-1Y53W44OXOXOX
460V-3ph - K1PWRE10B-1G53W45OXOXOX
575V-3ph - K1PWRE10B-1J53W46OXOXOX
ROOF CURBS
Hybrid Roof Curbs, Downow
8 in. heightC1CURB70B-111F54XXX
14 in. heightC1CURB71B-111F55XXX
18 in. heightC1CURB72B-111F56XXX
24 in. heightC1CURB73B-111F57XXX
Adjustable Pitch Curb, Downow
14 in. heightC1CURB55B-154W50XXX
CEILING DIFFUSERS
Step-Down - Order oneRTD11-9529G04X
RTD11-13529G05X
RTD11-18529G06X
Flush - Order oneFD11-9529G08X
FD11-13529G09X
FD11-18529G10X
Transitions (Supply and Return) - Order oneC1DIFF30B-112X65X
C1DIFF31B-112X66X
C1DIFF32B-112X67X
Sunsource
Solar Module
CE Kit
®
Commercial Energy System
One 285W Solar Module (silver frame), One PanelClaw Polar Bear III Mounting
System and One Enphase M250 Microinverter
10U67XXX
Solar Power Entry with DisconnectFactoryOOO
Enphase Envoy Communications Gateway (with Wireless Capability)13L89XXX
Line Communication Filter (external)C1C400D11A10F93XXX
Transformer (6 kW)E1TRFM15AD3Y (208Y to 208 VAC Delta)11H71XXX
E1TRFM15AD2Y (230 VAC Delta)11H28XXX
E1TRFM15AD3G (460 VAC Delta or Wye)11H29XXX
NOTE - Catalog and model numbers shown are for ordering eld installed accessories.
OX - Congure To Order (Factory Installed) or Field Installed
O = Congure To Order (Factory Installed)
X = Field Installed
Unit Model No
094122152
Page 7
SPECIFICATIONS - 092H, 102H
General DataNominal Tonnage7.5 Ton7.5 Ton8.5 Ton8.5 Ton
Gas Heating Options Available - See page 10Standard (2 Stage), Medium (2 Stage), High (2 Stage)
Compressor Type (number)Scroll (2)Scroll (2)Scroll (2)Scroll (2)
Outdoor Coils
Aluminum
(Fin/Tube)
Outdoor
Coil Fans
Net face area (total) - sq. ft.28.0 (29.33)28.0 (29.33)28.0 (29.33)28.0 (29.33)
Number of rows1 (3)1 (3)1 (3)1 (3)
Fins per inch20 (20)20 (20)20 (20)20 (20)
Motor - (No.) hp(2) 1/3(2) 1/3(2) 1/3(2) 1/3
Motor rpm1075107510751075
Total Motor watts800800800800
Diameter - (No.) in.(2) 24(2) 24(2) 24(2) 24
Number of blades3333
Total Air volume - cfm8800880088008800
Indoor
Coils
Net face area (total) - sq. ft.12.7812.7812.7812.78
Tube diameter - in.3/83/83/83/8
Number of rows4444
Fins per inch14141414
Drain connection - Number and size(1) 1 in. NPT coupling
Expansion device typeBalance port TXV, removable head
NOTE - Net capacity includes evaporator blower motor heat deduction. Gross capacity does not include evaporator blower motor heat deduction.
1
AHRI Certied to AHRI Standard 340/360; 95°F outdoor air temperature and 80°F db/67°F wb entering evaporator air; minimum external duct static pressure.
2
Integrated Energy Efciency Ratio certied and tested according to AHRI Standard 340/360.
3
Using total air volume and system static pressure requirements determine from blower performance tables rpm and motor output required. Maximum usable output of
motors furnished are shown. In Canada, nominal motor output is also maximum usable motor output. If motors of comparable output are used, be sure to keep within
the service factor limitations outlined on the motor nameplate.
NOTE – Units equipped with Multi-Stage Air Volume option are limited to a motor service factor of 1.0.
Gas Heating Options Available - See page 10Standard (2 Stage), Medium (2 Stage), High (2 Stage)
Compressor Type (number)Scroll (2)Scroll (2)Scroll (2)Scroll (2)
Outdoor Coils
Aluminum
(Fin/Tube)
Outdoor
Coil Fans
Net face area (total) - sq. ft.28.0 (29.33)28.0 (29.33)28.0 (29.33)28.0 (29.33)
Number of rows1 (3)1 (3)1 (3)1 (3)
Fins per inch20 (20)20 (20)20 (20)20 (20)
Motor - (No.) hp(2) 1/3(2) 1/3(2) 1/2(2) 1/2
Motor rpm1075107510751075
Total Motor watts80080010501050
Diameter - (No.) in.(2) 24(2) 24(2) 24(2) 24
Number of blades3333
Total Air volume - cfm8800880097009700
Indoor
Coils
Net face area (total) - sq. ft.13.5413.5413.5413.54
Tube diameter - in.3/83/83/83/8
Number of rows4444
Fins per inch14141414
Drain connection - Number and size(1) 1 in. NPT coupling
Expansion device typeBalance port TXV, removable head
3
Indoor
Blower and
Drive
Selection
Maximum usable motor output
Nominal motor output2 hp, 3 hp, 5 hp
(US Only)
Motor - Drive kit number2 hp
Blower wheel nominal diameter x width - in.(1) 15 X 15(1) 15 X 15(1) 15 X 15(1) 15 X 15
NOTE - Net capacity includes evaporator blower motor heat deduction. Gross capacity does not include evaporator blower motor heat deduction.
1
AHRI Certied to AHRI Standard 340/360; 95°F outdoor air temperature and 80°F db/67°F wb entering evaporator air; minimum external duct static pressure.
2
Integrated Energy Efciency Ratio certied and tested according to AHRI Standard 340/360.
3
Using total air volume and system static pressure requirements determine from blower performance tables rpm and motor output required. Maximum usable output of
motors furnished are shown. In Canada, nominal motor output is also maximum usable motor output. If motors of comparable output are used, be sure to keep within
the service factor limitations outlined on the motor nameplate.
5
150 models ordered with the Humiditrol® Dehumidication option are equipped with factory installed expansion valves.
NOTE – Units equipped with Multi-Stage Air Volume option are limited to a motor service factor of 1.0.
NOTE - Net capacity includes evaporator blower motor heat deduction. Gross capacity does not include evaporator blower motor heat deduction.
1
AHRI Certied to AHRI Standard 340/360; 95°F outdoor air temperature and 80°F db/67°F wb entering evaporator air; minimum external duct static pressure.
2
Integrated Energy Efciency Ratio certied and tested according to AHRI Standard 340/360.
Page 11
SPECIFICATIONS - BELT DRIVE MODELS - 094U, 122U, 152U
General DataNominal Tonnage7.5 Ton10 Ton12.5 Ton
Model NumberLGH094U4MLGH122U4MLGH152U4M
Efciency TypeUltraUltraUltra
Blower Type
Belt Drive
Cooling
Performance
Gross Cooling Capacity - Btuh93,700119,000141,900
1
Net Cooling Capacity - Btuh92,000116,000136,000
AHRI Rated Air Flow - cfm280036004000
Total Unit Power - kW6.98.811.5
1
EER (Btuh/Watt)13.412.612.0
2
IEER (Btuh/Watt)20.719.218.1
Refrigerant TypeR-410AR-410AR-410A
Refrigerant ChargeCircuit 129 lbs. 0 oz.29 lbs. 0 oz.29 lbs. 0 oz.
Gas Heating Options Available - See page 7Standard (2 Stage), Medium (2 Stage), High (2 Stage)
Compressor Type (number)Tandem Scroll (2)Tandem Scroll (2)Tandem Scroll (2)
Outdoor CoilsNet face area (total) - sq. ft.40.840.840.8
Number of rows222
Fins per inch202020
Outdoor
Coil Fans
Motor - (No.) hp(3) 1/3 ECM(3) 1/3 ECM(3) 1/3 ECM
Motor rpm520 - 900640 - 900640 - 900
Total Motor watts160 - 650280 - 650280 - 650
Diameter - (No.) in.(3) 24(3) 24(3) 24
Number of blades333
Total Air volume - cfm5160 - 10,2507100 - 10,2507100 - 10,250
Indoor
Coil
Net face area (total) - sq. ft.13.5413.5413.54
Tube diameter - in.3/83/83/8
Number of rows444
Fins per inch141414
Drain connection - Number and size(1) 1 in. NPT coupling
Expansion device type Dual-Flow Thermal Expansion Valve System Dual with Flow Control
NOTE - Net capacity includes evaporator blower motor heat deduction. Gross capacity does not include evaporator blower motor heat deduction.
1
AHRI Certied to AHRI Standard 340/360; 95°F outdoor air temperature and 80°F db/67°F wb entering evaporator air; minimum external duct static pressure.
2
Integrated Energy Efciency Ratio certied and tested according to AHRI Standard 340/360.
3
Using total air volume and system static pressure requirements determine from blower performance tables rpm and motor output required. Maximum usable output of
motors furnished are shown. If motors of comparable output are used, be sure to keep within the service factor limitations outlined on the motor nameplate.
Belt Drive
3 hp
5 hp
Belt Drive
Page 12
SPECIFICATIONS - GAS HEAT - 094U, 122U, 152U
Heat Input TypeStandardMediumHigh
Number of Gas Heat Stages222
Gas Heating
Performance
Recommended Gas Supply
Pressure - in. w.g.
Input - BtuhFirst Stage84,500117,000156,000
Second Stage130,000180,000240,000
Output - BtuhSecond Stage104,000144,000192,000
Temperature Rise Range - °F15 - 4530 - 6040 - 70
Thermal Efciency80%80%80%
Gas Supply Connections3/4 in. npt3/4 in. npt3/4 in. npt.
Natural7 in. w.c.7 in. w.c.7 in. w.c.
LPG/Propane11 in. w.c.11 in. w.c.11 in. w.c.
Page 13
BLOWER DATA
092, 094, AND 102 BELT DRIVE BLOWER − BASE UNIT
BLOWER TABLE INCLUDES RESISTANCE FOR BASE UNIT ONLY (NO HEAT SECTION) WITH DRY INDOOR COIL AND AIR
FILTERS IN PLACE.
FOR ALL UNITS ADD:
1 − Wet indoor coil air resistance of selected unit.
2 − Any factory installed options air resistance (heat section, economizer, etc.)
3 − Any eld installed accessories air resistance (duct resistance, diffuser, etc.)
Then determine from blower table blower motor output required.
See page 16 for blower motors and drives. See page 16 for wet coil and option/accessory air resistance data.
MAXIMUM STATIC PRESSURE WITH GAS HEAT - 2.0 in. w.g.
120, 122, 150 AND 152 BELT DRIVE BLOWER − BASE UNIT
BLOWER TABLE INCLUDES RESISTANCE FOR BASE UNIT ONLY (NO HEAT SECTION) WITH DRY INDOOR COIL AND AIR
FILTERS IN PLACE.
FOR ALL UNITS ADD:
1 − Wet indoor coil air resistance of selected unit.
2 − Any factory installed options air resistance (heat section, economizer, etc.)
3 − Any eld installed accessories air resistance (duct resistance, diffuser, etc.)
Then determine from blower table blower motor output required.
See page 16 for blower motors and drives. See page 16 for wet coil and option/accessory air resistance data.
MAXIMUM STATIC PRESSURE WITH GAS HEAT - 2.0 in. w.g.
Motor EfciencyNominal hpMaximum hpDrive Kit NumberRPM Range
Standard & High22.31590 - 890
Standard & High22.32800 - 1105
Standard & High22.33795 - 1195
Standard33.454730 - 970
Standard33.455940 - 1200
Standard33.4561015 - 1300
High33.457730 - 970
High33.458940 - 1200
High33.4591015 - 1300
Standard55.7510900 - 1135
Standard55.75111040 - 1315
Standard55.75121125 - 1425
NOTE - Using total air volume and system static pressure requirements determine from blower performance tables rpm and motor output required. Maximum usable
output of motors furnished are shown. In Canada, nominal motor output is also maximum usable motor output. If motors of comparable output are used, be sure to keep
within the service factor limitations outlined on the motor nameplate.
NOTE – Units equipped with Multi-Stage Air Volume option are limited to a motor service factor of 1.0.
POWER EXHAUST FAN PERFORMANCE
Return Air System Static Pressure Air Volume Exhausted
in. w.g. cfm
03175
0.052955
0.102685
0.152410
0.202165
0.251920
0.301420
0.351200
FACTORY INSTALLED OPTIONS/FIELD INSTALLED ACCESSORY AIR RESISTANCE - in. w.g.
Throw is the horizontal or vertical distance an air stream travels on leaving the outlet or diffuser
before the maximum velocity is reduced to 50 ft. per minute. Four sides open.
Page 17
BLOWER DATA - DIRECT DRIVE - 094U, 122U, 152U
BLOWER TABLE INCLUDES RESISTANCE FOR BASE UNIT ONLY (NO HEAT SECTION) WITH DRY INDOOR COIL AND AIR
FILTERS IN PLACE.
FOR ALL UNITS ADD:
1 − Wet indoor coil air resistance of selected unit.
2 − Any factory installed options air resistance (heat section, economizer, etc.)
3 − Any eld installed accessories air resistance (duct resistance, diffuser, etc.)
See page 21 for wet coil and option/accessory air resistance data.
MAXIMUM STATIC PRESSURE WITH GAS HEAT - 2.0 in. w.g.