Lennox International Inc G32Q4-100, G32Q3-100 Hole in the cabinet. a snaphole plug is providedto

Page 17

3- Electrically ground unit in accordance with local codes or, in the absence of local codes, in accor- dance with the current National Electric Code (ANSI/ NFPA No. 70) and in Canada with the current Cana- dian Electric Code part 1 (CSA standard C22.1). The ground wire is provided in the field make-up box.

To ensure proper grounding of the furnace, two star washers are included in the electrical make-up box bag assembly. Place the star washer on secudng screw before installing the make-up box. Make sure the star washer breaks the paint on the cabinet so that the washer is touching metal. Unit is not properly grounded if paint has not been removed by star washer.

4- An optional 120 volt accessory wira is provided with G32 units. Install the brown accessory wire into J69 jack plug by inserting the pin of the brown wire into

the open socket of the

jack. See figure 25. Any

INSYALUNG BROWN

ACCESSORY WIRE TO J69

accessory rated up to 4

 

amps can be connected to

BROWN

 

this wire.

Connect

the

 

neutral leg of the accesso-

NEUTRAL

 

 

 

ry to the neutral white wire

 

in the make-up box. The

BLAC

accessory terminal is en-

WNIT_

ergized

whenever

the

 

blower is in operation.

 

FIGURE 25

 

 

 

5 - Insert the three-pin (P69) plug from the control box

into the knockout provided in the blower deck.

6 - Connect jack (J69) from make-up box to jack plug in blower deck.

7 - Select wire size according to the blower motor amps.

8 - Snaphole bushing is provided for the widng entry

hole in the cabinet. A snaphole plug is providedto

seal the unused wire entry hole

INTERIOR MAKE-UP BOX INSTALLATION

__._

/

J69

FIGURE 26

EXTERIOR MAKE-UP BOX INSTALLATION

BUSHING

J69

(Shown with

accesso_

wire connec_d)

P69 from

ControlBox

FIGURE 27

G32Q and CONDENSING UNIT

THERMOSTAT DESIGNATIONS

(Refer to specific thermostat and outdoor unit,)

G32

$UREUGHT

Two-Stage

Condensing _nit

Thermostat*/

COkq'ROLBOARD/ _

_

_ H,sUN,T

® ....

.......

 

....

J_J=l _G

COMPRESSQR

OMPRESSC_

(_ J_ -°_"_L°_-_ .(-_

G32"rwo_AGECONTROL

®_

@

co.Mo.A ,so,,T

"$1ngll-_tlgeB_s most it don not contain W2 tmrmlnal

and Wl terminal is designated as W.

FIGURE 28

9- Install room thermostat according to instructions provided with thermostat. See figure 28 for thermo- stat designations. If furnace is being used with heat pump refer to FM21 installation instruction.

NOTE - W2 thermostat connection (pigtail) must be made at two-speed control board. SureLight TM board is not equipped with a W2 terminal

10 - Install a separate disconnect switch near the unit so power can be turned off for servicing.

11 - Complete wiring connections to equipment using wiring diagrams provided with unit and in figures 32

and 33. Use 18-gauge wire or larger for thermostat connections.

12 - The two-stagerelay board controls first- and second- stage furnace operation providing maximum comfort and efficiency. The furnace may be controlled by ei- ther a single- or two-stage room thermostat.

13 - The blower will run on continuous fan speed with the low speed tap connected to the (ACB LOW) 120 volt terminal and the thermostat set to "FAN ON" when there is no call for heating or cooling.

Page 17

Image 17
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