Lennox International Inc G32Q5-125, G32Q3-100, G32Q5-100, G32Q3-75 installation instructions Lennox

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LENNOX

_2001 Lennox Industt]e-_ _nc

Dallas Texas USA

RETAIN THESE INSTRUCTIONS FOR FUTURE REFERENCE

INSTALLATION

INSTRUCTIONS

G32Q

SERIES

UNITS

GAS UNITS

 

 

 

 

504,488M

 

 

_[_2ech

nical

11/2001

 

 

 

blications

Supersedes504,382M

 

Litho U.S.A.

ITahi6 of_ __te:nts

i

 

::

Unit Dimensions

................................

 

2

G32Q Parts Arrangement

 

3

Requirements

 

 

4

General

 

 

5

Installation - Setting Equipment

..................

5

Return Air Opening Guidelines

...................

5

Filters & Optional Filter Assembly

6

Duct System

 

 

7

Pipe & Fittings Specifications

....................

7

Vent Piping L_uidelines

 

8

Joint Cementing Procedure

 

8

Venting Practices

 

9

Gas Piping

 

 

15

Electrical

 

 

16

Unit Start-Up

 

 

21

Heating Sequence of Operation

22

Blower Operation

 

22

Gas Pressure Adjustment

 

22

High Altitude Information

 

23

Other Unit Adjustments

 

23

Service

 

 

24

Repair Parts

 

 

27

Troubleshooting

...............................

 

27

Start-Up & Performance Checklist .

 

32

-AWARNING

Do not store or use gasoline or other flammable vapors and liquids in the vi- cinity of this or any other appliance.

Installation and service must be per-

formed by a qualified installer, service

agency or the gas supplier,

11101

WHAT TO DO IF YOU SMELL GAS:

Do not by to light any appliance.

Extinguish any open flames.

Do not touch any electrical switch; do not use any phone in your building.

Immediately call your gas supplier from a

neighbor's phone. Follow the gas supplier's instructions.

If you cannot reach your gas supplier, call the fire department.

504,488M

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Contents Lennox AIR Outlet TOP ViewAccess Panel AIR AssemblyAccess Door Interlock SwitchInches mrn Shipping Damage Insta!iatton Setttng EquipmentSide Return Filter Installation in.turn Bottom Return Filter InstallationBottom Return Air Applications Knockout Pattern for Bottom Return AIR ApplicationPiping and Fittings Specifications Filter Door AssemblySupply Air Plenum G32-100 or -125 with 3 IN. Venting Termination KitsOUT BTUIventingractl es Pipe Resized to approach the minimum size as deterTopview WallringkitWall Termination OutsidewallExhaust Termination Intake Wall RingterminationFront View ,, l/EXHAUST Vent Front View ExhaustSide View ExhaarusUse the provided condensate drain adapter 3/4 Nipplebootorcap AdapterFor Right-Hand Side Condensate Exit Groundjoint type Condensate PlumbingLeft Side Piping Right Side PipingPrecautions and Procedures Connections factory- and field-installed for gas leaksElectrostatic Discharge ESD GAS Pipe Capacity ft.3/hr Im31hrlExterior MAKE-UP BOX Installation Interior MAKE-UP BOX InstallationHole in the cabinet. a snaphole plug is providedto G32Q and Condensing UnitSurelight Integrated Control Board G32Q Control BOXG32Q TWO-STAGE Control Board Typical G32Q Field Wiring DiagramTypical G32Q Schematic Wiring Diagram Honeywell VR8205 Series GAS Valve For Your Safety Read Before OperatingTurn gas valve knob to on position GAS Valve Shown in OFF PositionOperation sequence followssteps 1 through4 as out KBtuhDIFFERENTIALPRESSURESWITCHCIRCUITRY Manifold Pressure Measurement & AdjustmentAnnual Service Temperature RiseBlower Speeds Bushing.Reconnect wires Cleaning DuralokPlus TM Heat Exchanger275F 135C Reinstallthe screws to secure the burner box cover Cleaning the Bumer AssemblyBlower Parts CabinetHeating Parts SimultaneousAbnormal Heating Mode Normal Heating ModeHeating Sequence OperationIndoor Blower on Delay Begins Normal Heating Mode AbnormalFlame Signal GAS Valve OFF. Combustion AIRPressure Switch Watchguard Combustion AIR Inducer High Heat GAS Valve OPEN? 8 SEC. DelayIprepurge Combustion AIR Inducer on for 2.5 MinutesGPRRoOuPNEDRELYI Normal Cooling Mode Abnormal Cooling ModeJob Number InstallerHeating Section TH Ermostat