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WELCOME TO TODAY’S GENERATION
OF COMFORT
Congratulations! Your new, higher efficiency gas furnace is a
sound investment which will reward you and your family with
years of warm memories winter after winter.
Not only is your new furnace energy efficient, it is also extremely
reliable. Spend just a few minutes with this booklet to learn about
the operation of your new furnace—and the small amount of
maintenance it takes to keep it operating at peak efficiency. Years
went into the development of your new furnace. Take a little time
now to assure its most efficient operation for years to come.
TABLE OF CONTENTS
WELCOME TO A NEW GENERATION OF COMFORT 2....
FURNACE COMPONENTS 2...........................
GENERAL FURNACE SAFETY 2.......................
IMPORTANT FACTS 3................................
SAFETY CONSIDERATIONS 3.........................
BEFORE STARTING YOUR FURNACE 3.................
STARTING YOUR FURNACE 4.........................
SHUTTING DOWN YOUR FURNACE 5..................
PERFORMING ROUTINE MAINTENANCE 6.............
FILTERING OUT TROUBLE 6..........................
COMBUSTION AREA AND VENT SYSTEM 8............
BEFORE YOU REQUEST A SERVICE CALL 8............
MAINTENANCE CHECKLIST 9........................
INSTALLATION DATA 10.............................
GENERAL FURNACE SAFETY
COMBUSTIBLE MATERIALS, GASOLINE WARNING. . . . 1
FLOODDAMAGEWARNING............. ....... ....1
FIREOREXPLOSIONHAZARDWARNING..............1
CARBON MONOXIDE WARNING ................ .....1
FURNACEMUSTBEKEPTFREEANDCLEAROF
INSULATINGMATERIALWARNING..... ..............3
STARTING (LIGHTING) AND SHUTTING DOWN THE
FURNACEWARNING............................ ..4,5
PROPERFURNACESHUTDOWNPROCEDURES. ......5
SERVICE AND MAINTENANCE ELECTRICAL HAZARD
WARNING........ ............................ . 6
IMPROPERVENTWARNING........................ .6
SHARPEDGESCAUTION.......................... 6
NOFILTERCAUTION................ ............. 6
FILTERRODMODIFICATIONCAUTION.... ..... .....7
DIRT,RUST,ORACCUMULATIONCAUTION.. .........8
FURNACE NEEDS AIR FOR COMBUSTION AND
VENTILATION WARNING........................... 8
DRAFT SAFEGUARD SWITCH CAUTION . . ....... .....8
FURNACE COMPONENTS
(Furnace shown in upflow position; may be used in downflow or
horizontal orientation or applications. Vent Elbow may be turned
to a different position, depending on type of installation)
INDUCERMOTOR
ASSEMBLY
PRESSURE
SWITCH
FLUECOLLECTOR
BOX
GASVALVE
HOTSURFACE
IGNITOR
BLOWER
DOORSAFETY
SWITCH
FURNACE
CONTROL
BOARD
VENT
ELBOW
MAINLIMITSWITCH
(BEHINDGASVALVE)
BLOCKEDVENT
SWITCH
FLAME
SENSOR
GASMANIFOLD
GASBURNER
BLOWERAND
MOTOR
MANUALRESET
LIMITSWITCHES
CAPACITOR/
POWERCHOKE
A10259
Fig. 1 -- 80% AFUE Single Stage Furnace Components
INDUCERMOTOR
ASSEMBLY
PRESSURE
SWITCHES
FLUECOLLECTOR
BOX
GASVALVE
HOTSURFACE
IGNITOR
BLOWERDOOR
SAFETYSWITCH
FURNACECONTROL
BOARD
VENT
ELBOW
MAINLIMITSWITCH
(BEHINDGASVALVE)
BLOCKEDVENT
SWITCH
FLAME
SENSOR
GASMANIFOLD
GASBURNER
BLOWERAND
MOTOR
MANUALRESET
LIMITSWITCHES
CAPACITOR/
POWERCHOKE
A10260
Fig. 2 -- 80% AFUE Two--Stage Furnace Components