2
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
2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SAFETY CONSIDERATIONS
3
. . . . . . . . . . . . . . . . . . . . . . . . .
BEFORE STARTING YOUR FURNACE
3
. . . . . . . . . . . . . . . . .
STARTING YOUR FURNACE
3
. . . . . . . . . . . . . . . . . . . . . . . . .
Steps for Starting Your Furnace
4
. . . . . . . . . . . . . . . . . . . . . . . .
SHUTTING DOWN YOUR FURNACE
5
. . . . . . . . . . . . . . . . . .
PERFORMING ROUTINE MAINTENANCE
5
. . . . . . . . . . . . .
Filtering Out Trouble
6
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
COMBUSTION AREA AND VENT SYSTEM
7
. . . . . . . . . . . .
BEFORE YOU REQUEST A SERVICE CALL
8
. . . . . . . . . . . .
REGULAR DEALER MAINTENANCE
8
. . . . . . . . . . . . . . . . .
INSTALLATION DATA
9
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GENERAL FURNACE SAFETY
1. Combustible Materials, Gasoline Warning. . . . . . . . . . . . . 1
2. Furnace Must be Kept Free and Clear of Insulating Material
Warning. . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
3. Furnace Needs Air for Combustion and Ventilation
Warning . . . . . . . . . . . . . . . . . . . . . .. .. . . . . . . . . . . . . . . . 6
4. Starting (Lighting) and Shutting Down the
Furnace Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4,5
5. Draft Safeguard Switch Caution . . . . . . . . . . . . . . . . . . . . 8
6. Proper Furnace Shutdown Procedures . . . . . . . . . . . . . . . . 5
7. Flood Damage Warning . . . . . . . . . . . . . . . . . . . . . . . . . . 1
8. Fire or Explosion Hazard Warning. . . . . . . . . . . . . . . . . . . 1
9. Carbon Monoxide Warning . . . . . . . . . . . . . . . . . . . . . . . . 1
10. Service and Maintenance Electrical Hazard Warning . . . . . 6
11. Improper Vent Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
12. Sharp Edges Caution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
13. No Filter Caution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
14. Filter Rod Modification Caution . . . . . . . . . . . . . . . . . . . . 6
15. Dirt, Rust, or Accumulation Caution . . . . . . . . . . . . . . . . . 7
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)
VENT ELBOW
MAIN LIMIT SWITCH
(BEHIND GAS VALVE)
DRAFT
SAFEGUARD
SWITCH
FLAME SENSOR
GAS MANIFOLD
GAS BURNER
BLOWER DOOR
SAFETY SWITCH
BLOWER AND
MOTOR
CONTROL
RATING PLATE
NOT SHOWN
(LOCATED ON
BLOWER DOOR)
HOT SURFACE
IGNITER
MANUAL RESET
LIMIT SWITCHES
GAS VALVE
FLUE
COLLECTOR
BOX
PRESSURE
SWITCH
INDUCER MOTOR
ASSEMBLY
CAPACITOR
A02259
Fig. 1 -- 80% AFUE Single Stage Furnace Components
VENT ELBOW
MAIN LIMIT SWITCH
(BEHIND GAS VALVE)
DRAFT
SAFEGUARD
SWITCH
FLAME SENSOR
GAS MANIFOLD
GAS BURNER
BLOWER DOOR
SAFETY SWITCH
BLO
CAPACITOR
WER AND
MOTOR
CONTROL
RATING PLATE
NOT SHOWN
(LOCATED ON
BLOWER DOOR)
HOT SURFACE
IGNITER
MANUAL RESET
LIMIT SWITCHES
GAS VALVE
FLUE
COLLECTOR
BOX
PRESSURE
SWITCH
INDUCER MOTOR
ASSEMBLY
A02260
Fig. 2 -- 80% AFUE Two--Stage Furnace Components
