Lennox International Inc G32Q3-100, G32Q3-75 Iprepurge, Combustion AIR Inducer on for 2.5 Minutes

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HEATINGSEQUENCECONTINUED

NORMALHEATINGMODEABNORMALHEATINGMODE

IPREPURGE

IPRESSURESWtTCHCLOSED?

GAS VALVE DE-ENERGIZED.

!11INDOOR BLOWER DE-ENERGIZED,(Seetop of previous page.)

L'WO'STAGE'OOEI S,N";L;'S_;_%T

COMBUSTION AIR INDUCER ON FOR 2.5 MINUTES,

	CALLFOR 2ridSTAGE		2ridSTAGEON DELAY
	HEAT(HIGHHEAT)		ON CONTROLBOARD
	FROM THERMOSTAT	COMPLETE (B, 12 OR 15 MIN
I	INDOOR BLOWER ON
	HIGH HEATING SPEED?
		1		2.5
		1		MINUTES
I COMBUSTION AIR BLOWER ON HIGH SPEED?
I	HIGH HEAT PRESSURE		SWITCH CLOSED?	I
	YES	_
I	HIGH HEAT GAS VALVE OPEN? (8 SEC. DELAY)			_'NO

CONTROL CHECKS: FLAME PRESENCE, CLOSED I PRIMARY LIMIT, CLOSED PRESSURE SWITCHES, r

CONTINUOUSLY CLOSED ROLl.OUT SWITCH (dudng heating cycle).

SEE PREVIOUS SEQUENCES FOR FAILURE MODES.

DEMAND FOR HEAT SATISFIED.	I
THERMOSTAT OPENS.

GAS VALVE DE-ENERGIZED.		]

COMBUSTION	AIR BLOWER	I
POST-PURGE	- 5 SECONDS.
INDOOR BLOWER		J
SELECTED TIME OFF DELAY.

PRESSURESW,TC c

:_ _o

PRESSURE SWITCH WATCHGUARD

COMBUSTION AIR INDUCER

DE-ENERGIZED.

5-MINUTE DELAY

COMBUSTIONiNDUCER ONAIR. I

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Contents Lennox TOP View AIR OutletAccess AssemblyAccess Panel AIR Door Interlock SwitchInches mrn Insta!iatton Setttng Equipment Shipping DamageBottom Return Air Applications Bottom Return Filter InstallationSide Return Filter Installation in.turn Knockout Pattern for Bottom Return AIR ApplicationFilter Door Assembly Piping and Fittings SpecificationsSupply Air Plenum OUT Termination KitsG32-100 or -125 with 3 IN. Venting BTUIventingractl es Resized to approach the minimum size as deter PipeWallringkit TopviewExhaust Termination Intake OutsidewallWall Termination Wall RingterminationSide View Front View ExhaustFront View ,, l/EXHAUST Vent ExhaarusNipplebootorcap Adapter Use the provided condensate drain adapter 3/4For Right-Hand Side Condensate Exit Left Side Piping Condensate PlumbingGroundjoint type Right Side PipingElectrostatic Discharge ESD Connections factory- and field-installed for gas leaksPrecautions and Procedures GAS Pipe Capacity ft.3/hr Im31hrlHole in the cabinet. a snaphole plug is providedto Interior MAKE-UP BOX InstallationExterior MAKE-UP BOX Installation G32Q and Condensing UnitG32Q Control BOX Surelight Integrated Control BoardTypical G32Q Field Wiring Diagram G32Q TWO-STAGE Control BoardTypical G32Q Schematic Wiring Diagram Turn gas valve knob to on position For Your Safety Read Before OperatingHoneywell VR8205 Series GAS Valve GAS Valve Shown in OFF PositionOperation sequence followssteps 1 through4 as out Manifold Pressure Measurement & Adjustment KBtuhDIFFERENTIALPRESSURESWITCHCIRCUITRYTemperature Rise Annual ServiceBlower Speeds Cleaning DuralokPlus TM Heat Exchanger Bushing.Reconnect wires275F 135C Cleaning the Bumer Assembly Reinstallthe screws to secure the burner box coverHeating Parts CabinetBlower Parts SimultaneousHeating Sequence Normal Heating ModeAbnormal Heating Mode OperationFlame Signal Normal Heating Mode AbnormalIndoor Blower on Delay Begins GAS Valve OFF. Combustion AIRIprepurge High Heat GAS Valve OPEN? 8 SEC. DelayPressure Switch Watchguard Combustion AIR Inducer Combustion AIR Inducer on for 2.5 MinutesNormal Cooling Mode Abnormal Cooling Mode GPRRoOuPNEDRELYIHeating Section InstallerJob Number TH Ermostat