Lennox G32Q3-100 User manual

LENNOX

_2001 Lennox Industt]e-_ _nc

Dallas Texas USA

INSTALLATION

INSTRUCTIONS

G32Q SERIES UNITS

GAS UNITS

504,488M _[_2ech nical

11/2001 blications

Supersedes504,382M LithoU.S.A.

RETAIN THESE INSTRUCTIONS

FOR FUTURE REFERENCE

ITahi6of_ __te:nts i ::

UnitDimensions ................................ 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,

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.

11101 504,488M

IIIIIIIIIlHIIIIIIHIIIIIIIIIIIIIIIIII Pagol IIIIHIIIIIIIIllllIIHHItllUlIIHII

1 1116

(41)

(16)'-IP

1 1116 3 5/8

,o-oI

• v 151 ) AIR OUTLET

TOP VIEW

"ql'-- 28 1/2

(724)

I I

ELECTRICA

INLETS_

{BothSides)

L _____(EitherSide) J

Lt:;:"ZtJ

Return Air

Knockout (Bottom)

SIDE VIEW

21 3/4

(552)

GAS PIPING

INLET

(Both Sides)

91- 4(102)

(1168)

EXTERNAL

SIDE RETURN

/_R FIL'I1ERK]T

(Either Side

O_onal ,

4 (I02) E-IP

,lira A_

I I

AIR FLOW

Return Air

Knockout (Bottom)

FRONT VIEW

A B C D E F G H

Model No.

in. I mm in. mm in. mm In, mm In. mm in. mm in. mm in, mm

G32Q3-75 16-1/4 413 14.1/8 359 12 305 12 305 2-118 54 7-5/8 194 14 356 12-3/4 324

G32Q3/4-100

G32(_4/5-100 21-1/4 540 19-1/8 486 18 457 18 457 1-5/8 41 10-1/8 257 20 508 18-3/4 476

G32Q4/5-125 26-1/4 667 24-1/8 613 18 457 18 457 4-1/8 105 12-5/8 321 20 508 18-3/4 476

Page 2

GLASS FIBER GASKET

FRESH AIR

INTAKE FITTING

BURNERBOX

ASSEMBLY

PATCH

FLUE COLLAR

TOP CAP

WARM

HEADER

_I (COLLECTORTH__

. BOX

/ PATCH PLATE WITH

l BARBED FITTING

AND FLAME

ROLL-OUT SWITCH

FLUE

DuralokPlus TM

HEAT EXCHANGER

ASSEMBLY

CABINET

RESSURE-.

FLAME SIGHT p swrrcH

GLASS

BURNER BOX /

HIGH HEAT

COVER ]3NO-STAGE PRESSURE

GAS VALVE AND SWITCH

MANIFOLD (-75 only)

BURNER

ACCESS

PANEL

BLOWER

ACCESS

DOOR

TWO-SPEED

COMBUSTION AIR

INDUCER

AIR

ORIFICE

z-/"

COLD HEADER

(COLLECTOR)

BOX

4. SUPPLY

AIR

S/" _ BLOWER

DOOR INTERLOCK SWITCH

CONDENSERCOIL

CONTROL TRANSFORMER

CONTROL VOLTAGE

CIRCUIT BREAKER

TWO-STAGE CONTROL BOARD

LBOARD

FIGURE 1

Page 3

Lennox G32Q units are CSA International certified to

ANSI Z21.47 and CSA 2.3 standards.

In the USA, installation of Lennox gas central furnaces

must conform with local building codes. In the absence of

local codes, units must be installed according to the cur-

rent National Fuel Gas Code (ANSI-Z223.1) in the United

States. The National Fuel Gas Code is available from the

following address:

Amedcan National Standards Institute, Inc.

11 West 42rid Street

New York, NY 10036

In Canada, installation must conform with current Nation-

al Standard of Canada CAN/CGA-B149.1 "Installation

Code for Natural Gas Burning Appliances and Equip-

ment" and CAN/CGA-B149.2 "Installation Code for Pro-

pane Gas Burning Appliances and Equipment," local

plumbing or waste water codes and other applicable local

codes.

This furnace is CSA International certified for installation

clearances to combustible matedal as listed on the unit

rating plate and in table 1.

TABLE 1

Clearances Location

Front

Service access

Condensate side

Top

Exhaust

To combustible

materials Side, rear,and front

Floor

Inches(mrn)

24 (610)

3(76)

(fromsideofunit)

1(2s)

NOTE - For installation on combustiblefleers, the furnace

shaft not be installed directly on carpeting, tile, or other

combustible material other than wood flooring.

Accessibility and service clearances must take prece-

dence over fire protectionclearances.

For installation in a residential garage, the furnace must

be installed so that the burner(s) and the ignition source

are located no less than 18 inches(457 mm) above the

floor. The furnace must be located or protected to avoid

physical damage by vehicles. When e furnace is installed

in a public garage, hangar, or other building that has a

hazardous atmosphere,the fumace mustbe installed ac-

cording to recommended good practice requirements

and current National Fuel Gas Code or CAN/CGA B149.1

and B149.2 standards.

When the furnace is used with cooling units, it shall be

installed in parallel with, or on the upstream side of. cool-

ing units to avoid condensation in the heating compart-

ment. With a parallel flow arrangement, a damper (or oth-

er means to control the flow of air) must adequately

prevent chilled air from entering the furnace. If the damp-

er is manually operated, it must be equipped to prevent

operation of either the heating or the cooling unit, unless it

is in the full =HEAT" or "COOL" setting.

When installed, the furnace must be electrically grounded

according to local codes. In addition, in the United States,

installation must conform with the current National Elec-

tric Code, ANSI/NFPA No. 70. The National Electric Code

(ANSI/NFPA No. 70) is available from the following ad-

dress:

National Fire Protection Association

1 Battery March Park

Quincy, MA 02269

In Canada, all electrical wiring and grounding for the unit

must be installed according to the current regulations of

the Canadian Electrical Code Part I (CSA Standard

C22.1 ) and/or local codes.

Field widng connections must meet or exceed specifica-

tions of type T wire and withstand a maximum tempera-

ture dee of 180°F (82°C).

G32 unit must be installed so that electrical components

are protected from water.

When the furnace is installed so that supply ducts carry

air circulated by the furnace to areas outside of the space

containing the furnace, return air shall be handled by a

duct(s) sealed to the furnace casing and terminating out-

side space containing furnace.

A WARNING

Page 4

NOTE - G32 senes units must not be used as a construc-

tion heater dunng any phase of construction. Very low re.

turn air temperatures, harmful vapors and misplacement

of the filters will damage the unit and lower its efficiency.

The G32Q is an upflow gas furnace. A changeover kit

is necessary if the furnace is to be used with L.P. gas,

These instructions are intended as a general guide and

do not supersede Focalcodes in any way. Consult authori-

ties having jurisdiction before installation.

Shipping and Packing List

1 - Assembled G32 furnace

1 - 3 inch x 2 inch vent transition piece (-100, -125

units only)

1 - Bag assembly containing:

1 - Electrical make-up box

1 - Widng harness

1 - Snap bushing

2 - Filter clips

1 - Condensate plug

1 - Condensate drain adapter

1 - Brown accessory wire

1 - Green ground wire

4 - Wire nuts

2 - Star washers and screws

8 - Self-tapping screws

1 - Grounding label

1 - Wire tie

3 - Thread-forming screws

Shipping Damage

Check equipment for shipping damage. If you find any

damage, immediately contact the last carrier.

I Insta!iatton' Setttng Equipment

Select a location that allows for required clearances listed

on the unit rating plate. Also consider gas supply connec-

tions, electrical supply, vent connection and installation

and service clearances [24 inches (610 mm) at unit front].

The furnace must be level.

NOTE - 1/3 and 1/2 hp blower motors are equipped with

either four flexible mounting legs or three flexible legs and

one ngid leg. The ngid leg is equipped with a shipping bolt

and a flat white plastic washer (rather than the rubber

mounting grommet used with a flexible mounting leg).

This shipping bolt and flat washer must be removed be-

fore the furnace is put into operation. Once the sh_pping

bolt and washer are removed, the rigid leg will not touch

the blower housing.

_ CAUTION

[ . WARNING I

WARNING

Returnaircan be brought ineithersideor atthebottomof

the unit.Scdbelinesshowtheoutlineofeachsideandthe

bottom return air opening.

Page 5

Bottom Return Air Applications

If return air is to terminate through the floor under the fur-

nace, a direct, airtight and sealed connection must be

made to the bottom of the furnace,

1 - Cut opening in floor or platform. Using knockouts

provided, cut bottom of base panel. See figure 2.

KNOCKOUT PATTERN FOR BOTTOM

RETURN AIR APPLICATION

,v vd

iV Vd

FIGURE 2

2 - Bend a flange on return air plenum and lower into

floor or platform opening, See figure 3.

3 - Position unit over return air opening. Seal unit air

tight with return air plenum•

BOTTOM RETURN AIR APPLICATION

G32 UNIT

PROPERLY

SIZED FLOOR

OPENING

RETURN AIR

PLENUM

FIGURE 3

NOTE - Be cerefu/ not to damage insulation. Check for

tight seal,

Side Return Air Applications

For installations where thereturn air istaken fl'oma retum

airdrop,unitmay be installed with mtum airentl_ through

eitherthe left or rightside of thefurnace.

For sidereturnair applications,cutfurnacecabinetat the

dimensionsgivenon page 2. Embossedcomers arepro-

vided onbothcabinet sidesfor returnairopeninglocation.

i_ii_!'2'i:i:i_:"i:ii:i:i:;'i:!:11:71:i:7i:i:7!:;:i!:ii:ii;ii'i:ii'i:_;:""_'::<"_i:":i_i_ii,ii_::i:!Ti:i;_;:7:%TiJ;:::tT;;:::7:7

This unitisnot equippedwith a filteror rack.A field-pro-

videdhigh-velocityfilteris requiredforthe unittooperate

properly.A filter must be in place any time the unit is

operating. The unit does include filter clips for instal-

lation of a field-provided, internally installed filter.

See figure 4.

Bottom Return Air Applications

1 - Remove blower access panel.

2- Install filter clips, provided with unit, by slipping

folded section of clip on edge of bottom opening. See

figure 4.

3 - Place filter in bottom of blower compartment beneath

rear filter clip. Press down on filter sides. Filter clips

flex allowing filter to snap into place.

4 - To remove filter, press clip and pull filter up and out.

BOTTOM RETURN FILTER INSTALLATION

REAR FILT R CLIP

URNACE

BACK

SIDE _

FURNACE FURNACE

FIGURE 4

Side Return Air Applications

Filter racksare available from Lennoxfor side returnair

applications.See figures5 and 6.

NOTE - Thefilter doormay be shipped in therack behind

thefilter./fnecessa_ remove the filter, retrieve the door

and continuewiththe installationof the rack.

1 - Align filterrackopening withthe inside edge of the

side return opening. Bottom of rack should be

approximately1 inch(25 mm) fromthe bottom and 3

inches(76 mm) from the frontof the unit.

2 - Screwfilter rack intoplacewiththeeightselfddll,self

tap screws provided.See figure 5.

3 - Push filter door pinsthrough the two holes in filter

doorfrom the insideof the u-channel. See figure 6.

SIDE RETURN FILTER INSTALLATION

in.(turn)

BLOWER DECK _=

RETURN 12 in. (305) for

AIR 14 in. 13561 Filter

OPENING t8 In. (437) for

20 in, (508) Filter

1-13/t6in.

cAa,NETBASEI; .OM,I

RETURN AIR

PLENUM SIZE

12-314 In X 23-1/2 In (324 X

597) for 14 In (356) Filter

18-3/4 In. x 23-1/2 In,

(476 x 507)

for 20 In. 1508) Filter

(34)

FIGURE 5

Page 6

FILTER DOOR ASSEMBLY

FILTER DO0_ _

PIN _T_ TAB

FILTER DOOR I I I _'l]l

FILTER

FIGURE 6

4 - Positionfilter door on end offilter so that the thumb

tab side of the filter door is away from the furnace.

Squeeze thumb tabs to secure filter to door.

5 - Guide filter and filter door into the filter rack installed

on side of furnace. Push door into filter rack until se-

cure.

6 - To remove filter,pull filterdoor pins untildoor isre-

leased from filter rack,

Use industry-approved standards to size and install the

supply and return air duct system. This will resultin a quiet

and low-static system that has uniform air distribution.

Supply Air Plenum

Furnaces installedwithout a coolingcoilrequirethe installa-

tion of a removable access panel inthe supplyair ducL The

access panel should be large enough to permit inspection

(either by smoke or reflectedlight)ofthe heatexchanger for

leaksafter installation. The furnace access panel must al-

ways be in placewhen the furnace isoperatingand itmust

not allow leaks into the supply air duct system.

Return Air Plenum

See dimensionillustrationon page 2 for properreturnair

duct size.

NOTE - Forbottomreturn air,returnair ductshouldbe se-

curedto the unitusingrivets or Sqocks. For side return

air,secure return airduct to filterrackusingscrews. When

using screws, take care to avoid interference with the fil-

ter which may cause improper filtration.

The return air must not be drawn from a room where

another gas appliance (ie,, a water heater) is

installed. Even thoughthisfurnace draws its combustion

air from outside of the structure, other gas appliances that

share a utility room may not. When retum air is drawn

from a room, a negative pressure is created in the room. If

a gas appliance is operating in a room with negative pres-

sure, the flueproducts can be pulled back down the vent

pipe and into the room. This reverse flow of the flue gas

may result in incomplete combustion and the formation of

carbon monoxide gas. This toxic gas might then be dis-

tributed through the house by the furnace duct system.

Pipe & _tttings S _¢ifi_ti_

J :::%:::::: :::::::::: ::: : ::

]

All pipe,fittings,primerand solventcementmustconform

withAmericanNationalStandard Instituteand theAmeri-

can Society for Testingand Materials (ANSI/ASTM) stan-

dards. The solvent shall be free flowing and contain no

lumps, undissolved particles or any foreign matter that

adversely affectsthejoint strength or chemical resistance

of thecement. The cement shall show no gelation, stratifi-

cation, or separation that cannot be removed by stining.

Refer to table 2 for approved piping and fitting materials.

TABLE 2

PIPING AND FITTINGS SPECIFICATIONS

ASTM

PIPE & FITrlNG MATERIAL SPECIFICATION

Schedule 40 PVC (Pipe) D1785

Schedule 40 PVC (CellularCore Pipe) F89t

Schedule 40 PVC (Fittings) D2466

Schedule40 CPVC (Pipe) F441

Schedule 40 CPVC (Fittings) F438

SDR-21 PVC (Pipe) or SDR-26 PVC (Pipe) D2241

SDR-21 CPVC (Pipe) or SDR-26 CPVC (Pipe) F442

Schedule 40 ABS (Pipe) D1527

Schedule 40 ABS (Fittings) D2468

ABS-DWV (Drain Waste& Vent)

(Pipe & Fittings) D2661

PVC-DWV (Drain Waste & Vent - D2665

Pipe & Fittings)

A CAUTION

Primers and solventsmust meet ASTM specifications,

PVC pdrnerisspecifiedin ASTM F 656. UsePVC solvent

cement as specified in ASTM D 2564 and ABS solvent

cement as specified in ASTM D 2235. Low temperature

solvent cement is recommended. Metal or plastic strap-

ping may be used for vent pipe hangers.

Table 3 liststhe available exhaust termination kits. All

Lennox vent terminations are PVC.

Page 7

Lennox Part

No.

60G77

33K97

15F75

22G44

15F74

44J41

44J40

30G28

30G79

LB-49107CE

LB-87942

LB-49107CC

LB-49107CD

LB_9107CB

LB-65678A

LB-65701A

WTK

WTKX

TABLE 3

TERMINATION KITS

Kit LB# Description*Inches (ram)

1-1/2" (38) Concentric

Termination Kit

3" (50,8) Low Pressure Drop

Concentric Term Kit

2" (50,8) Roof

Termination Kit

2" (50.8) Well

Assembly Termination Kit

2" (50.8) Walt Ring Kit

3" (76,2) Roof

Termination Kit

3" (76.2) Wall

Assembly TerminationKit

2" (50.8) Wall

TerminationExtendedVent

2" (50.6) Wall

TerminationExtensionRiser

When making ABS joints, pieces can be prepared with a

cleaner. When joining ABS to PVC matedals, use PVC

solvent cement. Refer to this procedure as specified in

ASTM D3138.

Canada Only - In some provinces, PVC primer must be

purple in color, PVC solvent cement must be grey, ABS

solvent cement must be yellow and PVC solventcement

used when joining ABS to PVC must be white.

[

:: ::,::.:_::: : :: ::.::..: :.:::::::::: .::::::.:::::::::::::::::.:::::::::::::::::;:. :::_:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: :: :: ::.:]

Pipe used for exhaust and intake lines should be sized ac-

cording to table 4. Note that maximum lengthof vent pipe

is for one run; either intake or exhaust. Maximum vent

length given isnot the total length of intake plus exhaust

vents.

Each 90° elbow is equivalent to 5 feet (1.52 m) of vent

pipe. Two 45° elbows are equivalent to one 90° elbow.

One 45° elbow is equal to 2.5 feet (.76 m) of vent pipe.

If intake and exhaust piping runs are not equal in length

and number of elbows, the larger diameter pipe must be

used for both runs.

NOTE - When a WTKX terminaUon kit (30G79) is

installed as part of the intake and exhaust piping, add

twelve feet tothe equivalent length (the two 2 inch diame-

ter 90° elbows end the 27 inch pipe in thekit).

For 75 kBtuh units, connections are provided for 2 inch

diameter venting which should satisfy most venting re-

quirements. No transition pieces are provided or needed

for 2 inch venting.

TABLE 4

VENT PIPE SIZING TABLE FOR G32Q FURNACES

MINIMUM DIAMETER OF INTAKE/EXHAUST PIPE

Vent Pipe

Equivalent Length

Max. Feet (Meters)

15 (4.57 m)

20 (6,10 m)

25 (7.62 m)

30 (9.14 m)

40 (12.19 m)

50 (I 5.24 m)

55 (16.76 m)

60 (18,29 m)

70 (21,34 rn)

80 (24.38 m)

90 (27.43 m)

100 (30.48 m)

110 (33,53 m)

120 (36.58 m)

130 (39.62 m)

G32-76 G32-100 G32-125

75,000 100,000 125.000

BTU BTU BTU

2" 2" 2'

2" 2" 3"

2" 3" 3_

2" 3" 3"

3" 3" 3"

3" 3" --

NOTE - Min. pipeforG32-75 is5feet and 2elbowsof2inchdmmeterp_pe.

NOTE - Min. pipe for G32-100 is 5feet end 2 elbowsof 2 inch diameter

pipe,

NOTE - Min. pipe for G32-125 is 5 feet and 2 e/bows of 2 inchdiameter

pipe.

For -100 and -125 kBtuhunits,the intakeconnectionis

sized for 3 inchdiameter pipe. The exhaustconnection

has a 2 inchnipple,A pipetransitionpieceisshippedwith

the unitto connectto 3 inchpipe. See figure7 for2 inch

and 3 inchventingapplications.

Most venting applicationswillrequire 3 inchventingfor

properunitoperation.For no reason should the intake

and exhaust pipe be different diameter pipes. Re-

gardlessofthe diameterofpipe used,the standardroof

and wail terminationsdescribed in Intake and Exhaust

Piping Terminations sectionshouldbe used.Exhaustpip-

ingmustterminatewith 1-1/2 inchpipefor 1-1/2 inchor 2

inchventingand 2 inch pipe for 3 inchventing.

G32-100 OR -125 WITH 2 IN. VENTING

2 IN. VEN_] 3RIIENI_XC2EIN,

2IN. I 3IN.

OUT N

G32-100 OR -125 WITH 3 IN. VENTING

L_I

NIPPLE ,..,

OUT IN

FIGURE 7

3 IN. VENT PiPE

Page 8

All cementing of joints should be done according to the

specifications outlined in ASTM D 2855.

1 - Measure and cut vent pipeto desired length.

2 - Debur and chamfer end of pipe, removing any ddges

or rough edges. If end is notchamfered, edge of pipe

may remove cement fTomfitting socket and result in

a leaking joint.

3 - Clean and dry surfaces to be joined.

4 - Test fit joint and mark depth offitting on outside of

pipe.

5 - Uniformly applyliberal coat of PVC primer for PVC or

ABS cleaner for ABS to inside socket surface of fit-

ting and male end of pipe to depth of fitting socket.

6 - Promptly apply solvent cement to end of pipeand in-

side socket surface of fitting. Cement should be ap-

plied lightly but uniformly to inside of socket. Take

care to keep excess cement out of socket. Apply

second coat to end of pipe.

NOTE - Time is critical at this stage. Do not allow

pnmer to dry before applying cement.

7 - Immediately after applying last coat of cement to

pipe, and while both inside socketsurface and end of

pipe are wet with cement, forcefully insert endof pipe

intosocket until it bottoms out. Turn pipe 1/4turn dur-

ing assembly (but not after pipe is fully inserted) to

distribute cement evenly.

NOTE - Assembly should be completed within 20

seconds after last application of cement. Hammer

blows should not be used when inse_ng pipe.

8 - After assembly, wipe excess cement from pipe at

end offitting socket.A properlymadejointwillshowa

bead arounditsentireperimeter. Anygaps may indi-

cate a defective assembly due to insufficientsol-

vent.

9 - Handle joints carefully untilcompletelyset.

Iventing ractl es

The thickness of construction through which vent!air in-

take pipes may be installed is a minimum of 3 inches (76

mm) and a maximum of 24 inches (610 mm). If a G32 fur-

nace replaces a furnace which was commonly vented

with another gas appliance, the size of the existing vent

pipe for that gas appliance must be checked. Without the

heat of the original furnace flue products, the existingvent

pipe is probably oversized for the single water heater or

other appliance. The vent should be checked for proper

draw with the remaining appliance,

Intake Piping

1 - Cement intakepipinginslip connectorlocated at top

of unit.

2 - Route pipingto outside of structure.Continue with

installationfollowing instructionsgiven in exhaust

and intakepipingterminationsection.

WARNING

Exhaust Piping

1- Cemente_(haustpipthgintofluecollarsocketloceted

on the left side of the top cap.

2 - Allhorizontalrunsofexhaust pipe mustslopeback

towardthe unit.A minimumof 1/4 inch(6 ram) drop

for each 12inches(305 mm) ofhorizontalrunisman-

datory fordrainage. Horizontal runsofexhaust pip*

ing mustbe supported every 5 feet (1.52 m) using

hangers.

Page 9

{

NOTE - Exhaust piping should be checked carefully

to make sure there are no sags or low spots.

NOTE - Exhaust piping must be Insulated wffh 1/2 inch

(13 ram) Armaflex or equivalent when nJn through un-

heated space. Do not leave any area of exhaust pipe

open to outside air. extenor exhaust must be insulated

wrth 1/2 inch (13 ram) Armaflex or equivalent.

Zl, CAUTION

CAUTION

Removal of Unit from Common Venting System

In the event thatan existing furnace is removedfrom a

venting system commonly run with separate gas ap-

pliances, the venting system may be too largeto property

vent the remaining attached appliances. The following

test should be conducted while all appliances (beth in op-

eration and those not in operation) are connected to the

common venting system.If the venting system has been

installed improperly, corrections must be made as out-

lined in the previous section.

1 - Seal any unused openings in the common venting

system.

2 - Visually inspect the venting system for proper size

and horizontal pitchand determinethere is noblock-

age or restdction,leakage, corrosionor otherdefi-

ciencieswhichcouldcause an unsafe condition.

3 - To the extent that it is practical, close all building

doors andwindows,and alldoorsbetweenthespace

in whichthe appliancesremainingconnectedto the

common venting system are located and other

spaces of the building. Turn on clothes dryers and

any appliancesnot connectedto the commonvent-

ing system. Turn on anyexhaust fans, suchas range

hoods and bathroom exhausts, so they willoperate

at maximum speed. Do not operate a summer ex-

haust fan. Close fireplace dampers.

4 - Follow the lightinginstructions. Place the appliance

being inspected in operation. Adjust thermostat so

appliance will operate continuously.

5 - Testfor spillage at thedraft hood relief openingafter

5 minutes of main burner operation. Usethe flame of

match or candle, or smoke from a cigarette or cigar,

or a draftgauge.

6- After determining that each appliance remaining

connected to the common venting system properly

vents when tested as indicated in step 3, return

doors, windows, exhaust fans, fireplace dampers

and any other gas-burning appliance to their pre-

vious condition of use.

7 - If improper venting is observed dudng any of the

above tests, the common venting system must be

corrected. The common venting system shouldbe

resized to approach the minimum size as deter-

mined by using the appropriate tables in appendixG

in the current standards of the National Fuel Gas

Code ANSI Z223-1 in the USA, and the appropriate

Category 1 Natural Gas appliances venting sizing

tables in the current standard of the CAN/

CGA-B149.1 in the Natural Gas InstalLationCode in

Canada.

Intake and Exhaust Piping Terminations

Intake and exhaustpipesmay be routedeitherhorizontal-

lythrough an outsidewall or verticallythroughthe roof.In

attic or closet instaUations,verticalterminationthrough

the roofis preferred. Figures 8 through20 show typical

terminations.

1 - Use recommendedpiping materialsfor bothintake

and exhaust piping.

2 - Secure all joints,includingdrain leg,gas tightusing

approvedcement.

3 - Pipingdiametersshouldbe determinedaccordingto

length of pipe run.See table 4. Locate intakepiping

upwind (prevailing wind) from exhaust piping. To

avoid recirculation of exhaust gas on roof termina-

tions, end of exhaust pipe must be higher than intake

pipe.

Exhaust and intake exits must be in same pressure

zone. Donot exit one through the roof and one on the

side. Also, do not exittheintake on one sideandthe

exhaust on another side of the house or structure.

4 - intake and exhaust pipes should be placed as close

together as possible at termination end (refer to il-

lustrations). Maximum separation is 3 inches (76

ram) on roof terminations and 6 inches (152 ram)on

sidewall terminations.

5 - Exhaustpipingmustterminate straightout or up as

shown, tnrooftopapplications,a 2 inchX 1-1/2 inch

reducer for 2 inch venting,3 inch x 2 inch reducerfor

3 inch venting must be used on the exhaust piping at

the point where it exits the structure to improve the

velocity of exhaust away from the intakepiping.

Page 10

On roof terminations, the intake piping should termi-

natestraight down using two 90° elbows.See figure 8.

NOTE - If winter design temperature is below 32°F (O°C),

exhaust piping must be insulated with 1/2 inch (13 mm)

Armaflex or equivalent when run through unheated

space. Do not leave any surface area of exhaust pipe

open to outside air," exterior exhaust pipe must be insu-

lated with 1/2 inch (13 ram) Armaflex or equivalent. In ex-

treme cold climate areas, 3/4 inch (19 mm) Armaflex or

equivalent is recommended. Insulation on outside runs of

exhaust pipe must be painted or wrapped to protect in-

sulation from deterioration.

NOTE - During extremely cold temperatures, below

approximately 20°F (6.67°C), units with long runs of vent

pipe through unconditioned space, even when insulated,

may form ice in the exhaust termination that prevents the

unit from operating properly. Longer run times of at least 5

minutes will alleviate most icing problems. Also, a heating

cable may be installed on exhaust piping and termination

to prevent freeze-ups. Heating cable installation kit is

available from Lennox. See Condensate Piping section

for part numbers.

NOTE - Care must be taken to avoid recirculation of ex-

haust back into intake pipe.

6 - On field-supplied terminations for side wall exits, ex-

haust piping should extend a maximum of 12 inches

(305 mm) beyond the outside wall. Intake piping

should be as short as possible. See figure 10.

IMAX.

Inches (ram) 3 x 2 (70 x 51) OR

2 x %1/2 (51 x 38)

PVC REDUCER

1/2 (13) FOAM

INSULATION IN

UNCONDrrlONED

12 (305) ABOVE SPACE

AVERAGE SNOW

ACCUMULATION

3 (76) OR UNCONDmONED

2 (5t) PVC ATTIC SPACE

PROVIDE SUPPORT

FOR INTAKE AND

F.XHAUST LINES

ROOFTERMINATIONKIT

(15F'75)LB-49107CCfor2 (5t) Venting

(44341)LB-65678Afor 3 (76)Venting

FIGURE 8

EXHAUST

12 (305) ABOVE

AVERAGE SNOW

ACCUMULATION

INTAKE

TERMINATION

Inches (mm)

EXHAUST INTAKE

CONCENTRIC ROOFTOP TERMINATION

(60G77) LB-49107CE for G32-75 Units Only

(33K97) LB-87942 for G32-100 & -125 Units Only

FIGURE 9

1/2 (13) ARMAFLEX

INSULATION IN

UNCONDITIONED SPACE

1/2 (13) ARMAFLEX t'

INSULATION

OUTSIDE j

WALL

12 (305) MIN.

2 X 1-1/2

(51 X 38)

PV REDUCER

_ _ 'VC

I 6 (I 52)

MAXIMUM

_ 2 (_ I PVC

PLING

Inches (ram)

TOPVIEW

WALLRINGKIT

(15J74) LB-49107CBfor2 (50,8! Venting

FIGURE 10

On field-supplied terminations, a minimum separa-

tion distance between the end of the exhaust pipe

and the end of the intake pipe is 8 inches (203mm).

If intake and exhaust piping must be run up a side

wall to position above snow accumulation or other

obstructions, the piping must be supported every 3

feet (.91 m) as shown in figure 15.Refer to figures 13

and 14 for proper piping method. W'FKwall termina-

tion kit must be extended for use in this application,

See figure 18 or use kit WTKX shown in figure 19.

When exhaust and intake piping must be run up an

outside wall, the exhaust piping is reduced to 1-1/2

inches (38 mm) after the final elbow. The intake pip-

ing may be equipped with a 90°elbow turndown. Us-

ing 90°turndown will add 5 feet (1.5m) to the equiva-

lent length of the pipe.

Page 11

1/2 (12.7) FOAM INSULATION

IN UNCONDITIONED SPACE

Inches (mm)

OUTSIDEWALL

qlp

Optional Turndown

Shown

(Intake Onty)

TOPVIEW

WALLTERMINATION

(22G44)LB-49107CDfor2 (50,8)Venting

(44J40)LB-65701Afor3 (76.2)Venting

FIGURE 11

EXHAUST

INTAKE

Inches (ram)

EXHAUST

TERMINATION

abovegrade,

CONCENTRIC WALL TERMINATION

(60G77) LB-49107CE for G32-75 Units Only

(331(97) LB-87942 for G32-t00 & -125 Units Only

FIGURE 12

Inches(mm)

UNCONDITIONED

SPACE

OUTSIDE WALL

PROVIDE SUPPORT

FOR INTAKE AND /

EXHAUST UNES EVERY

3_(914)

1/2113) FOAM

INSULATION IN

UNCONOmONED

SPACE

12 (305) MIN for2 (51)

20(5oa)MAXfor3(76):

HI II t2(S_0)ASOVE

Ii2 (131FOAM

INSULATION

SiDEVIEW

WALLRINGTERMINATION

(15F74)LE-49107CBfor2In. (51)Venting

See v.ntlng table 4 for maglng_ venting lengths with this Irmr:l_mant.

FIGURE 13

9 - Position terminationends sothey are free from any

obstructions and abovethe level ofsnowaccumula-

tion (where applicable). Termination ends must be a

minimum of 12 inches (305 mm) above grade level.

Do not point into window wells, stairwells, alcoves,

courtyard areas or other recessed areas. Do not

position termination ends directly below roof eaves

or above a walkway. Since the G32 is a certified di-

rect vent, Category iV gas furnace, the location of

the termination is limited by local building codes. In

the absence of local codes, refer to the current Na-

tional Fuel Gas Code ANSI Z223-1 in USA, and cur-

rent standard CAN/CGA-B149.1 of the Natural Gas

Installation Instructions in Canada for details. The

termination should be at least 12 inches (305 mm)

from any opening through which flue products could

enter the building.

When horizontally vented, minimum clearance for

termination from electric meters, gas meters, regula-

tors and relief equipment is 4 feet (1.2 m) for US

installations. Refer to the current CAN/CGA-B149.1

for installations in Canada or with authorities having

local jurisdiction.

At vent termination, care must be taken to maintain

protective coatings over building materials (pro-

longed exposure to exhaust condensate can destroy

protective coatings). It is recommended that the ex-

haust outlet not be located within 6 feet (1.8 m) of a

condensing unit because the condensate can dam-

age the painted coating.

10 - Suspend piping usinghangers at a minimum ofevery

5 feet (1.52 m) for schedule 40 PVC and every 3 feet

(.91 m) for ABS-DWV, PVC-DWV, SDR-21 PVC,

and SDR-26 PVC piping. A suitable hanger can be

fabricated by using metal or plastic strapping or a

large wire tie.

11 - In areas where piping penetrates joists or interior

walls, hole must be large enough to allow clearance

on all sides of pipe as it passes through the center of

the hole.

12 - Isolate piping at the point where it exits the outside

wall or roof.

Page 12

Inches(turn) 1/2 (13) 3 x 2 {76 x 51) OR

FOAM 2 x 1.t/2 (61 x 36)

INSULATION REDUCER BUSHING LOCATION

3 (76) OR FOR OFFSET TERMINATION

2 (51) 90 _ELBOW

3 (76) OR

Optional Turndown _ _ 2 (5t) 90" ELBOW

(Not Shown)

May Be Used on

Intake Only FRONT VIEW

WALL TERMINATION

(22G44) LB-49107CD for 2(51) Venting

(44J40) LB-65701A for 3(76) Venting

FIGURE 14

METALOR PLASTIC

STRAPPING

FIGURE 15

13 - When furnace is installed in a residence where unit is

shut down for an extended period of time, such as a

vacation home, make provisions for draining con-

densate collection trap and lines.

14 - Based on the recommendation of the manufacturer,

a multiplefurnace installation may use a group of up

to four termination kits WTK assembled together

horizontally, as shown in figure 17.

Front View _,_, "_'l/EXHAUST VENT

1/2 (13) Foam

Insulation in

Unconditioned _ace F

Inches (mm) L_

VENT TERMINATIONS

WALL TERMINATION KIT 130G28) WTK

Side View

EXHAUST VEN_

INTAKE VENT

OUTSIDE WALL

FIGURE t6

Front View EXHAUST

18M

i EXHAUST VENT

Side View_

Inches (ram) • INTAKE

VENT

OPTIONAL VENT TERMINATION FOR

MULTIPLE UNIT INSTALLATION

WALL TERMINATION KIT WTK

FIGURE 17

Front View

INTAKE

AIR

1127)..L

(3os)

COVER EXHAUST

VENT WITH

1/2(13)

FOAM

INSULATION

EXHAUST

AIR

t 2 MIN

(30_)

Above Grade

GRADE

INTAKE

AIR

//// EXHAARUS_ SideView

_--T_-- ----n

// (('-_-_-_" II

/ / @1 812031

/ / I_=_,,,I,,,=_l Inches (ram)

//,ii II r'--r

lJil,

/ / Mn}mum

/ / ABO'_GPJmE

, GRADE

VENT TERMINATIONS

MODEL WTK WALL TERMINATION KIT (30G28)

EXTENDED VENT FOR GRADE CLEARANCE

FIGURE 18

Page 13

Inches (mm)

Front View

[

_,EXHAUST

I '10" VENT

= _ NOTE - Enclosed ex_us_ pipe _s

insuleted w;th _F2 i,_Ch(13 ram)

INTAKE foam insu_abon If in_al(ear_ ex-

VENT hsusl I_pes am reversed, sl=land

r_move foam instJlat_ot_ and

Ii teat)ply to OUmr vent Exhaust

vent mr=st be insulated

Side View

USTVENT

iNTAKE

VENT

VENT TERMINATIONS

MODEL WTKX (30GT9)

EXTENSION RISER FOR GRADE CLEARANCE

FIGURE 19

G32Q VENTING IN EXISTING CHIMNEY

NOTE - Do not dischal_e exhaust gases ditently into or vent stack.

II ventCal discharge through at, ex_6ng unused chimney or stack ts require<J,

i_sertpipingintgde chlm,'.eyurdilthe pipeopenend Isabovetopof _y and

termimlte as iltusttstad. I. any extedor po(tlon of ¢ilrmney, the exhaust vent must

be insulated.An alternatemethodistoflitthechimneywithvetrmc.ulitoor equal

to take advantage of its acoustic and thermal properties,

FIGURE 20

Condensate Piping

This unit is designed for either right- or left-side exit of

condensate piping. Route the condensate drainiine only

within the conditioned space: this prevents possible

freezing of the condensate, which would block the drain-

line. Use an electric heat cable if you route the conden-

sate line through unconditioned areas.

A CAUTION

1 - Determine which side condensate will exit the unit.

2- Connect 1/2 inch (13 mm) plastic pipe plug (pro-

vided) in the unused end of the condensate trap.

Install plug so that it is sealed water tight yet able to

be removed. Do not permanently seal the connec-

tion. Teflon tape is recommended to seal joint. See

figure 21.

CONDENSATE ASSEMBLY

(Forleftor rightinstallation)

COLD

COMBUSTION AIR HEADER

INDUCER BRACKET BOX

ADAPTER

ELBOW

CONDENSATE TRAP

NIPPLE BOOTORCAP

ADAPTER

FIGURE 2t

3 - Use the providedcondensate drain adapter (3/4" x

1/2") and a field-providednipple to carry drainage

outside the cabinet. If a fieldsubstitute is needed, 1/2

inch CPVC x 1/2 inch MPT adapter and 1/2 inch

CPVC is acceptable for use.

4 - Glue nipple to the adapter using the procedures out-

lined in the "Joint Cementing Procedures" section.

The nipple/adapter assembly should be connected

in a non-permanentmanner and must be water tight.

Teflon tape is recommended to seal the joint.

For Right-Hand Side Condensate Exit:

Install the nipple/adapter assembly from the out-

side of the cabinet and insert the adapter intothe

threaded opening in the condensate trap.

For Left-Hand Side Condensate Exit:

Insertnipple/adapterassemblyfrom the left hand

side of the cabinet and through the combustion air

inducer mounting structure into the threaded

opening in the condensate trap.

5 - Connect field-supplied plumbing to nipple and route

to open drain. Plumbing should be vented to a point

higher than the condensing coil. See figure 22.

Page14

CONDENSATE PLUMBING

(Plumbing must be vented higher than coll.)

FIGURE 22

6- Connect condensate drain line (1/2 inch [13 mm]

SDR 11 plastic pipe or tubing)to condensate con-

nection on condensate trap assembly and route to

open drain. Condensate line must be sloped down-

ward away from drip leg to drain. If the drain level is

above condensate outlet, use a condensate pumpto

pump the condensate to the higher level. Conden-

sate drain line should be routed within the condi-

tioned space to avoid freezing of condensate and

blockage of drain line. If this is not possible,a heat

cable kit may be used on the condensate line. Heat-

ing cable kit is available from Lennox in various

lengths; 6 feet (1.8 m) - kit no. 18K48; 24 feet (7.3 m)

- kit no. 18K49; and 50 feet (15.2 m) - kit no. 18K50.

1 - Gas piping may be muted intothe unitthrough either

the left- or right-hand side. Supply piping enters into

the gas valve from the bottom of the valve asshown

in figure 24.

2- When connecting the gas supply, factors such as

length of run, number of fittings and furnace rating

must be considered to avoid excessive pressure

drop. Table 5 lists recommended pipe sizes for typi-

cal applications.

NOTE - Use two wrenches when connecting gas pip-

ing to avoid transferring torque to the manifold.

3 - The gas piping must not run in or through air ducts,

clothes chutes, gas vents or chimneys, dumb wait-

ers or elevator shafts. Center gas line through piping

hole. Gas lineshould not touch side of unit. When

left-hand gas plumbing is required, gas line should

be installed in the lower half of knockout so that pip-

ing will clear combustion air inducer. See figure 24.

4 - The piping should be sloped 1/4inch (6.4mm) per 15

feet (4.57 m) upward toward the meter from the fur-

nace. The piping must be supported at properinter-

vals [every 8to 10 feet (2.44to 3.01m) using suitable

hangers or straps. A drip leg should be installed in

vertical pipe runs to the unit.

5 - Some local codesmay require installationof a manu-

al main shut-off valve and union (furnished by the in-

staller) external to the unit. Union must be of the

groundjointtype,

CAP-_D-I_I U

FIGURE 23

NOTE - Installa 1/8inch NPTplugged tapin thefield pip

ing upstream ofthe gas supplyconnection tothe unit.The

tap must be accessible for test gauge connection. See

figure 24.

LEFT SIDE PIPING

MANUAL MAIN

SHUT-OFF

VALVE

1/8in. NPT

PLUGGED

TAP

GAS VALVE

.... --I, RIGHT SIDE PIPING

_(.=.___=.-,_t_ (STANDARD)

118In. NPT

PLUGGED

..........................j,AP

GAS VALVE

FIGURE 24

Page 15

Nominal

Iron Pipe Size

-InchesImm)

t/4

(635)

3/8

(6,53)

(127)

314

(19.05)

(254)

1-1/4

(31.75)

Io1/2

(381)

(5O.8)

2-112

(83.5)

(76.2)

(101.6)

NOTE - Capacity j

TABLE 5

GAS PIPE CAPACITY - ft.3/hr Im31hrl

Internal Length of Pipe-Feet (m)

Diameter 10 20 30 40 50 60 70 80 90 100

.InchesImm) (3.048) (6.096) (9.144) (12.192) 115.2401 (18.288) (21.336) (24.384) (27.432 (30.480)

364 43 29 24 29 18 18 15 14 19 12

(9 246) (1 13) (.82) (68) (.57) (81) (45) ( 401 (40} (3?) (.34)

493 95 65 52 45 40 36 33 31 29 27

(12.5221 (269) (1.84) (1 47) (127) (113) (1.02) (73) (88) (.82) (75)

622 175 120 97 82 73 66 61 57 53 50

(17.799) (496) (340) (2.75) (232) (2.07) (1.87) (173) (101) (1.50) (142)

.824 360 250 200 176 161 138 125 118 110 103

(20.930) (10.19) {706) (566) (4.81) (4.28) (3.91) (3 54) (3.34) (3 11) (292)

1049 680 468 379 320 288 260 240 220 208 !95

(26.645) (19,25) (13.17) (10,62) (9,06) (807) (7.36) (6 90) (6.23) (580) (6.62)

1.380 1400 960 770 660 580 630 490 460 430 400

(35.052) (39.64) (26.90) (21.80) (18,69) (1642) (15.01) (13.67) (13.031 (1218) (11.33)

1.610 21 O0 466 1180 990 900 810 750 690 650 620

(40.894) (59.46) (41.34) (3341) (2803) (2548) (22.94) (2124) (19.54) (1841) (17,56)

2.0_7 3950 2750 2200 1906 1680 1520 1400 1300 1220 1150

(52.502) (111.85) (77,87) (62.30) (5380) (47.57) (43.041 (3964) (36.81) (34.58) (32.56)

2469 6300 4350 9520 3000 2650 2400 2250 2050 1950 1880

(67 713) (17839) (12317) (9967) (84.95) (75.04) (67.96) (63.71) (58,05) (55.22) (52.38)

3068 11000 7700 6250 5300 4750 4300 3900 3700 3450 3250

(77.927) (31148) (218.03) (17698) (150.07) (134.50) (121,76) (110.43) (104.77) (97,69) (92.03)

4 026 23000 15800 12800 10900 9700 8800 St00 7500 7200 6700

(102.260) (651.27) (447.39) (362 44) (308.64) (274.67) (249.t8) (229.99) (212.37) (203.88) (189.72)

'iven in cubsc feet (m 3) o f gas per hour and based on O.60 specific gravity gas.

Leak Check

After gas piping is completed, carefully check all piping

connections (factory- and field-installed) for gas leaks.

Use a leak detecting solution or other preferred means.

CAUTION

Figure 28 shows thermostat designations for identifica-

tion purposes. Refer tofigure 29 for control box arra nge-

ment, figure 30 for a detail of the Surelight _integrated

control, figure 32 for point-to-point field wiring and figure

33 for schematic wiring diagram and troubleshooting,

ELECTROSTATIC DISCHARGE (ESD)

Precautions and Procedures

A, IMPORTANT 1

iii::i:: i.................j

A field make-up box is provided for line voltage wiring.

Line voltage wiring to unit is done through the J69 jack

from the field make-up box to plug P69 from the control

box. See figures26 and 27 for make-up box installation.

1 - Install field make-up box on either side,inside orout

of the cabinet. Knockouts are provided in box and

cabinet to run wiring. See figures 26 and 27.

2 - Remove cap from knockout in blower deck on the

same side as the installed make-up box.

A IMPORTANT

Page 16

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

accessory rated up to 4

amps can be connected to

this wire. Connect the

neutral leg of the accesso-

ryto the neutral white wire

in the make-up box. The

accessory terminal is en-

ergized whenever the

blower is in operation.

5 - Insert the three-pin (P69)

plug from the control box

INSYALUNG BROWN

ACCESSORY WIRE TO J69

BROWN

WNIT_

NEUTRAL

BLAC

FIGURE 25

into the knockout provided in the blower deck.

6 - Connect jack (J69) from make-up box tojack 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 snapholeplug is providedto

seal the unused wire entry hole

INTERIOR MAKE-UP BOX INSTALLATION

__._ / J69

FIGURE 26

EXTERIOR MAKE-UP BOX INSTALLATION

J69

(Shown with

accesso_

wire connec_d)

P69 from

ControlBox

BUSHING

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-_tlge B_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 isbeing used with heat

pump refer to FM21 installation instruction.

NOTE - W2 thermostat connection (pigtail) must be

made at two-speed control board. SureLightTM 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

G32Q CONTROL BOX

DOOR

INTERLOCK

SWITCH

SURELIGHT /

CONTROL

TRANSFORMER

._,_ C=RCU_

'_1_ _BREA_ER

TWO_TAGE

_ _'--'-CONTROL

BOARD

FIGURE 29

SURELIGHT INTEGRATED CONTROL BOARD

IIZ II LO_ TX HOT :_(_ ,_

"_-III 0110 UIIO I

÷ _.._, .. _

÷ L_____J _

FANDELAY SFJ_-_E JI

o.P --

i I

I I I

........... J J

_.__ _--.-J ® ®

Y G W R C

Y Q W R C

ACBCOOL

ACB HEAT

PARK

ACB LOW

ACC

HOT

HTG ACC

NEUTRALS

24VAC HOT

24VAC RTN

FLAME SENSE

TERMINAL DESIGNATION_

Blower - Coollr_ Bleed {LineVolt)

Blower- Heatina SPeed (LineVolt)

AJtemateBlower SPeeds (Dead}

ContinuousLowSpeed Blower

AccessoryTerminal(Line VoW4ampmax.)

120VAC Hot to Transformer

120VAC Hot Input

Heat OnlyAccessory (Line VoltI

120VAC Neutrals

24VAC Hot from Transformer

24VAC Return from Transformer(Common)

Flame SenseTerminal

LOW VOLTAGE TERMINAL

/ CONN ECTJON TO THERMOSTAT

* FACTORY SET AT SOSECONDS

FIGURE 30

Page 18

G32Q TWO-STAGE CONTROL BOARD

MODE OF

OPERATION

JUMPER

(Factory set

at TWO STAGE)

FIGURE 31

TYPICAL G32Q FIELD WIRING DIAGRAM

W2 TIMED

ON DELAY

JUMPER

(Factoryset

at 8 minutes.)

FIGURE 32

Page 19

F20M/_C

4.5 E]_(4

I|F IJ_D] O

Ll'_b_m

II I I I I

it i I i i

IIilll

I --_'

TYPICAL G32Q SCHEMATIC WIRING DIAGRAM

,,o

HION NEAT

srj Ti_ IVI

SlO

Ul_ LIMIT SI]_

c_urr l_

AiR Lml_

r---n 2

(ill

FIGURE 33

Page 20

Lennox G32Q3-100 User manual

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