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.
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)
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
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
INDUCER MOTOR |
ASSEMBLY |
PRESSURE |
SWITCH |
FLUE COLLECTOR |
BOX |
GAS VALVE |
MANUAL RESET |
LIMIT SWITCHES |
HOT SURFACE |
IGNITOR |
BLOWER |
DOOR SAFETY |
SWITCH |
FURNACE |
CONTROL |
BOARD |
VENT |
ELBOW |
MAIN LIMIT SWITCH |
(BEHIND GAS VALVE) |
BLOCKED VENT |
SWITCH |
FLAME |
SENSOR |
GAS MANIFOLD |
GAS BURNER |
BLOWER AND |
MOTOR |
CAPACITOR/ |
POWER CHOKE |
COMBUSTION AREA AND VENT SYSTEM . . . . . . . . . . . . 8 BEFORE YOU REQUEST A SERVICE CALL . . . . . . . . . . . . 8 MAINTENANCE CHECKLIST . . . . . . . . . . . . . . . . . . . . . . . . 9
A10259
Fig. 1 - 80% AFUE Single Stage Furnace Components
INSTALLATION DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
GENERAL FURNACE SAFETY
COMBUSTIBLE MATERIALS, GASOLINE WARNING. . . . 1 FLOOD DAMAGE WARNING . . . . . . . . . . . . . . . . . . . . . . . . 1 FIRE OR EXPLOSION HAZARD WARNING. . . . . . . . . . . . . . 1 CARBON MONOXIDE WARNING . . . . . . . . . . . . . . . . . . . . . 1
FURNACE MUST BE KEPT FREE AND CLEAR OF INSULATING MATERIAL WARNING. . . . . . . .. . . . . . . . . . . 3
STARTING (LIGHTING) AND SHUTTING DOWN THE FURNACE WARNING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4,5
PROPER FURNACE SHUTDOWN PROCEDURES . . . . . . . 5
SERVICE AND MAINTENANCE ELECTRICAL HAZARD
WARNING . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . 6 IMPROPER VENT WARNING . . . . . . . . . . . . . . . . . . . . . . . . . 6 SHARP EDGES CAUTION . . . . . . . . . . . . . . . . . . . . . . . . . . 6 NO FILTER CAUTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 FILTER ROD MODIFICATION CAUTION . . . . . . . . . . . . . .7 DIRT, RUST, OR ACCUMULATION CAUTION . . . . . . . . . . . 8
INDUCER MOTOR |
ASSEMBLY |
PRESSURE |
SWITCHES |
FLUE COLLECTOR |
BOX |
GAS VALVE |
MANUAL RESET |
LIMIT SWITCHES |
HOT SURFACE |
IGNITOR |
BLOWER DOOR |
SAFETY SWITCH |
FURNACE CONTROL |
BOARD |
VENT
ELBOW
MAIN LIMIT SWITCH (BEHIND GAS VALVE)
BLOCKED VENT
SWITCH
FLAME
SENSOR
GAS MANIFOLD
GAS BURNER
BLOWER AND
MOTOR
CAPACITOR/
POWER CHOKE
FURNACE NEEDS AIR FOR COMBUSTION AND VENTILATION WARNING . . . . . . . . . . .. . .. .. . . .. . . . . . . 8
DRAFT SAFEGUARD SWITCH CAUTION . . .. . . . . . . . . . . 8
A10260
Fig. 2 - 80% AFUE Two-Stage Furnace Components
2
