International comfort products 441 02 7000 02 Owner's Manual

INDUCED COMBUSTION GAS FURNACE

Owner’s Manual

NOTE TO INSTALLER:
THIS MANUAL MUST BE LEFT WITH THE
EQUIPMENT USER.

USER: PLEASE READ ALL INSTRUCTIONS
IN THE MANUAL AND RETAIN ALL
MANUALS FOR FUTURE REFERENCE.

!

WARNING

FIRE OR EXPLOSION HAZARD

Failure to follow warnings could result in injury, death, or
property damage.

Do not store or use gasoline or other flammable vapors and
liquids in the vicinity of this or any other appliance.

WHAT TO DO IF YOU SMELL GAS

−Do not try to light any appliance.

−Do not touch any electrical switch; do not use any

phone in your building.

−Leave the building immediately.

−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.

Installation and service must be performed by a qualified
installer, service agency or the gas supplier.

Illustrations and photographs are only representative.

Some product models may vary.

!

WARNING

CARBON MONOXIDE POISONING HAZARD

Failure to follow this warning could result in personal injury
and/or death.

Carbon Monoxide is invisible, odorless, and toxic! Install a
carbon monoxide alarm in your home, even if you do not
own a gas appliance. Locate the carbon monoxide alarm in
the living area of your home and away from gas appliances
and doorways to attached garages. Follow the alarm
manufacturer’s instruction included with the alarm.

!

ELECTRICAL OPERATION HAZARD

Failure to follow this warning could result in personal injury,
death, or property damage.

Do not use this furnace if any part has been under water. A
flood−damaged furnace is extremely dangerous. Attempts to
use the furnace can result in fire or explosion. A qualified
service agency should be contacted to inspect the furnace and
to replace all gas controls, control system parts, electrical parts
that have been wet or the furnace if deemed necessary.

Use of the AHRI Certified TM Mark indicates a
manufacturer’s participation in the program. For
verification of certification for individual products,
go to www.ahridirectory.org .

Specifications subject to change without notice.

WARNING

441 02 7000 02 Dec. 2013

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.

INDUCER MOTOR

ASSEMBLY

PRESSURE

SWITCH

COLLECTOR

GAS VALVE

MANUAL RESET

LIMIT SWITCHES

HOT SURFACE

IGNITER

CONTROL

FLUE

BOX

VENT ELBOW
MAIN LIMIT SWITCH

(BEHIND GAS VALVE)

DRAFT
SAFEGUARD
SWITCH

FLAME SENSOR

GAS MANIFOLD

GAS BURNER

BLOWER DOOR
SAFETY SWITCH

BLOWER AND
MOTOR

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)

441 02 7000 02

Specifications subject to change without notice.

CAPACITOR

RATING PLATE

NOT SHOWN

(LOCATED ON

BLOWER DOOR)

A02259

Fig. 1 − 80% AFUE Single Stage Furnace Components

IMPORTANT FACTS (DO’S AND DON’TS)

S DO: READ AND UNDERSTAND THIS MANUAL.

S DO: Have your furnace and vent system inspected annually by a

qualified service technician.

S DO: Inspect your filter monthly and clean or replace when

needed.

S DO: Provide adequate airflow to the furnace for efficient

combustion and safe ventilation.

S DO: Keep your furnace free and clear of insulating material.

Some materials may be combustible. Examine the furnace area

when the furnace is installed or when insulation is added.

S DO NOT: Enclose your furnace in an airtight room or seal it

behind solid doors.

S DO NOT: Keep combustible materials, gasoline, and other

flammable liquids or vapors around your furnace.

S DO NOT: Cover your furnace in any manner.

S DO NOT: Store anything (including trash or debris) near your

furnace.

S DO NOT: In any way block or restrict airflow around your

furnace.

S DO NOT: In any way block or restrict airflow to your supply air

and return air grills.

S DO NOT: Use your furnace room as a broom closet or a place to

store any kind of chemical or cleaner.

S DO NOT: Contaminate the air used for combustion of your

furnace with any kind of chemical or fumes. This could also

cause heat exchangers, metal vent systems or components to

deteriorate.

NOTE: These chemicals or fumes are present in many products
around the home, such as: water softener salts, any type of
household cleaning product, any type of laundry product,
adhesives, paints, varnishes, paint strippers, waxes and plastics, etc.

During remodeling be sure the combustion air is fresh and
uncontaminated. If these compounds are burned in your furnace,
the heat exchangers and metal vent system may deteriorate.

NOTE: The qualified installer or agency must use only
factory−authorized replacement parts, kits, and accessories when
modifying this product.

This furnace contains safety devices which must be manually reset.
If the furnace is left unattended for an extended period of time,

2

have it checked periodically for proper operation. This precaution
will prevent problems associated with no heat, such as frozen water
pipes, etc. See “Before You Request a Service Call” section in this
manual.

STARTING YOUR FURNACE

Your furnace uses an automatic, hot surface ignition system to light
the burners each time the thermostat signals the furnace to start.

!

WARNING

ELECTRICAL OPERATION HAZARD

Failure to follow this warning could result in injury, death, or
property damage.

Do not keep combustible materials, gasoline, and other
flammable liquids or vapors around your furnace.

!

WARNING

FIRE OR EXPLOSION HAZARD

Failure to follow warnings could result in personal injury,
death, or property damage.

Keep insulation clear of furnace and maintain clearances
shown on unit clearance label.

SAFETY CONSIDERATIONS

Installing and servicing heating equipment can be hazardous due to
gas and electrical components. Only trained and qualified
personnel should install, repair, or service heating equipment.

Untrained personnel can perform basic maintenance functions such
as cleaning or replacing air filters. All other operations must be
performed by trained service personnel. Observe safety precautions
in this manual, on tags, and on labels attached to the furnace, and
other safety precautions that may apply.

Recognize safety information. This is the safety−alert symbol .
When you see this symbol on the furnace and in instructions or
manuals, be alert to the potential for personal injury.

Understand the signal words DANGER, WARNING, and
CAUTION. These words are used with the safety−alert symbol.
DANGER identifies the most serious hazards which will result in
severe personal injury or death. WARNING signifies hazards
which could result in personal injury or death. CAUTION is used
to identify unsafe practices which would result in minor personal
injury or product and property damage. NOTE is used to highlight
suggestions which will result in enhanced installation, reliability or
operation.

BEFORE STARTING YOUR FURNACE

Examine the furnace installation to determine that:

1. All flue gas carrying areas external to the furnace (i.e.
chimney, vent connector) are clear and free of obstructions.

2. The vent connector is in place, slopes upward and is
physically sound without holes or excessive corrosion.

3. The return−air duct connection(s) is physically sound, is
sealed to the furnace casing, and terminates outside the
space containing the furnace.

4. The physical support of the furnace is sound without
sagging cracks, gaps, etc. around the base.

5. There are no obvious signs of deterioration of the furnace.

6. The burner flames are in good adjustment (by comparison
with pictorial sketches or drawings of the main burner flame
and, if applicable, the pilot burner flame).

Follow these important safeguards:

S Never attempt to manually light the burners with a match

or other source of flame.

Fig. 2 − Do Not Light Burner with Match

S Read and follow the operating instructions on inside of

main furnace door, especially the item that reads as
follows:
“Wait 5 minutes to clear out any gas. Then smell for gas,
including near the floor. If you smell gas, STOP!
Follow “B” in the safety information above on this
furnace label. If you don’t smell gas, go to the next step.”

S If a suspected malfunction occurs with your gas control

system, such as the burners do not light when they
should, refer to the shutdown procedures on inside of
main furnace door, or in the “Shutting Down Your
Furnace” section and call your dealer as soon as possible.

!

FIRE AND EXPLOSION HAZARD

Failure to follow this warning could result in personal injury,
death or property damage.

Should the gas supply fail to shut off or if overheating occurs,
turn off the manual gas valve to the furnace BEFORE turning
off the electrical supply and install lockout tag.

S CHECK AIR FILTER: Before attempting to start your

furnace, be sure the furnace filter is clean and in place.
See “Performing Routine Maintenance” section in this
manual. Do not run the furnace without a filter in place.
Then proceed as follows:

WARNING

STEPS FOR STARTING YOUR FURNACE

1. Set your room thermostat to the lowest temperature setting.
See Fig. 3.

Fig. 3 − Lowest Temperature Setting

A92319

A08175

3

Specifications subject to change without notice.

441 02 7000 02