Lennox International Inc G32Q4-100 Normal Heating Mode Abnormal, GAS Valve OFF. Combustion AIR

Page 29

HEATINGSEQUENCECONTINUED

 

NORMAL

HEATING MODE

 

 

 

ABNORMAL

HEATING

MODE

 

 

J

 

15PREPURGESECONDS

J_

 

 

 

 

 

 

 

 

 

 

 

 

 

 

l

 

 

 

 

 

GAS VALVE OFF. COMBUSTION AIR

 

 

 

 

 

 

 

 

 

j (s,GW'N_%_,%_0,0/_',_",G

 

 

 

 

 

 

 

 

 

 

AND INDOOR BLOWER OFF.

J-

 

IGNITION

SEQUENCE BEGINS

 

 

 

ALTERNL%t"%F SRES/

 

 

(Ignition

tfiatcounter initiated.)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WATCHGUARD

 

- FLAME

FAILURE.

 

 

 

IGNITOR(20 SECONDS)WARM-UP

 

 

 

i

 

COMBUSTION

 

AIR INDUCER

OFF.

 

 

 

 

 

 

 

 

 

 

 

 

INDOOR

 

BLOWER

OFF,

 

 

J-lr

 

 

"_-

-IF

_.

 

 

LED

#1

& LED #2

ALTERNATE

FLASH,

 

I

 

 

 

 

 

 

 

 

 

 

 

TWO-STAGEMODE

WETIMEDMODE

I I

 

_TAS

 

J

 

 

VALVE OFF.

 

 

CALLFOR Ist STAGEHEAT j

L

SINGLE STAGET'STAT j

L

SINGLE-STAGE MODE

 

 

YES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HIGH HEAT ONLY

j

 

 

 

 

 

 

 

MAIN GAS VALVE OPEN

 

MAIN

GAS VALVE OPEN

 

 

 

 

 

CONTROL

CHECKS

RETRY

 

 

 

 

 

GAS VALVE OPEN

 

FOR

IGNmON

COUNT

 

 

LOW HEATONLY

 

LOW HEATONLY

 

 

HIGH AND LOW HEAT

 

 

 

 

 

 

 

 

(Ignitorremains energized,)

 

(IgNitor

remains energized,

 

 

(ignitor remains energized,)

 

HAVE FOUR E-TRIES

 

 

 

 

 

SECONDSTAGE

 

 

 

 

 

BEEN COMPLETED?

 

 

 

 

 

TIME ONBEGINS

 

 

 

/

 

/

 

 

 

 

I

 

 

4 SECONDS_

 

 

 

 

 

 

 

 

 

FLAME RECTIFICATION CURRENT CHECK

J

 

 

 

 

 

 

 

I >

0.15 microamps)

 

 

 

I

 

 

 

 

 

I

(ResponseE MEPRESENT?V'--'I

DEGAS-ENERGIZEDVALVE

 

J

 

 

 

 

 

time -- 2 seconds maximum.)

 

 

 

 

 

 

 

 

 

I

INDOOR BLOWER ON DELAY BEGINS

I

 

 

 

 

 

 

 

 

3__

 

(45 seconds.)

 

 

 

I

 

 

 

 

 

 

 

 

........

 

.__

_

 

_.

 

 

 

 

 

 

 

 

 

TWO-STAGEMODE

 

W'2TIMEDMOOE

I

I

SINGLE-STAGEMODE

 

I

 

 

 

 

 

 

CALLFOR Ist STAGEHEAT J L

 

 

 

 

 

 

 

 

 

 

 

 

SINGLESTAGET'STAT

JL

HIGH HEATONLY j

 

 

 

 

 

 

 

 

 

 

 

 

 

 

....

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-_-

 

 

 

 

 

 

 

 

INDOOR BLOWER ON LOW SPEED,

INDOOR BLOWER ON HIGH HEATING I

 

 

 

 

 

 

ACC. TERM NAL ENERG ZES

SPEED, ACC, TERM NAL ENERGIZES. I

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

I

 

 

 

 

 

 

I

FLAME PRESENT?

I

!Continuous flame check)

I

1

FLAME SIGNAL

_

( > 0.7 microamps)

I

PRIMARY LIMIT SWITCH CLOSED?

 

 

 

I

ROLLOUT SWITCH CLOSED?

 

I

PRESSURE SWITCH CLOSED?

 

ICONTtNUED ON NEXT PAGE)

 

 

 

I

CONTINUED ON NEXT PAGE

NO

LEDLOWFLAMEB,GNAL#1 - SLOW FLASH

LED #2 - FAST FLASH

COMBUSTION AIR INDUCER DE-ENERGIZED.

INDOOR BLOWER ON.

GAS VALVE DE-ENERGIZED.

LED #1 - SLOW FLASH; LED #2 - ON.

t

J

HAS THREELIMITCLOSEDMINUTES?WITHIN

 

COMBUSTION AIR INDUCER DE*ENERGIZED.

 

INDOOR BLOWER OFF DELAY (Selected time)

 

 

GAS VALVELED DE#1--ENERGIZEDON.

I

LED #2 - SLOW FLASH

Page 29

Page 28 Page 30
Image 29
Page 28 Page 30
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 ApplicationSupply Air Plenum Filter Door AssemblyPiping and Fittings Specifications 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 ExhaarusFor Right-Hand Side Condensate Exit Nipplebootorcap AdapterUse the provided condensate drain adapter 3/4 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 & AdjustmentBlower Speeds Temperature RiseAnnual Service 275F 135C Cleaning DuralokPlus TM Heat ExchangerBushing.Reconnect wires 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
Top Page Image Contents