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.
FIRE OR EXPLOSION HAZARD
Failure to follow safety 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.
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to the Expertg
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CARBON MONOXIDE POISONING HAZARD
Failure to follow this warning could result in personal
injury and/or death.
Carbon Monoxide is invisible, odorless, and toxic!
Carrier Heating and Cooling Systems recommends 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.
A02177
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.
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)
j VENT ELBOW
_ MAIN LIMIT SWITCH
.s (BEHIND GAS VALVE)
DRAFT
_ SAFEGUARD
SWITCH
.................. FLAME SENSOR
GAS MANIFOLD
HOT SURFACE _
CONTROL --" .....
RATING PLATE
NOT SHOWN
(LOCATED ON
BLOWER DOOR)
J
Fig. 1 - 80% AFUE Single Stage Furnace Components
INDUCER MOTOR
ASSEMBLY
PRESSURE
FLUE
COLLECTOR
BOX
GAS VALVE z/J/"
MANUAL RESET
LIMIT SWITCHES
HOT SURFACE _ " " BLOWER DOOR
IGNITER SAFETY SWITCH
RATING PLATE
NOT SHOWN
(LOCATED ON
BLOWER DOOR)
Fig. 2 - 80% AFUE Two-Stage Furnace Components
BLOWER DOOR
A02259
VENT ELBOW
MAIN LIMIT SWITCH
jJJ_ (BEHIND GAS VALVE)
DRAFT
SAFEGUARD
SWITCH
GAS BURNER
BLOWER AND
MOTOR
CAPACITOR
A02260
IMPORTANT FACTS (DO'S AND DON'TS)
• DO: READ AND UNDERSTAND THIS MANUAL
• DO: Have your furnace and vent system inspected annually by a
qualified service technician.
• DO: Inspect your filter monthly and clean or replace when
needed.
• DO: Provide adequate airflow to the furnace for efficient
combustion and safe ventilation.
• 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.
• DO NOT: Enclose your furnace in an airtight room or seal it
behind solid doors.
• DO NOT: Keep combustible materials, gasoline, and other
flammable liquids or vapors around your furnace.
• DO NOT: Cover your furnace in any manner.
• DO NOT: Store anything (including trash or debris) near your
furnace.
• DO NOT: In any way block or restrict airflow around your
furnace.
• DO NOT: In any way block or restrict airflow to your supply air
and return air grills.
• DO NOT: Use your furnace room as a broom closet or a place to
store any kind of chemical or cleaner.
• 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,
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.
ELECTRICAL OPERATION HAZARD
Failure to follow this safety warning could result in injury,
death, or property damage.
Do not keep combustible materials, gasoline, and other
flammable liquids or vapors around your furnace.
FIRE OR EXPLOSION HAZARD
Failure to follow safety warnings could result in personal
iniury, death, or property damage.
Keep insulation clear of furnace and maintain clearances
shown on unit clearance label.
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 pilot and 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).
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 iniury.
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 iniury or death. WARNING signifies hazards
which could result in personal iniury or death. CAUTION is used
to identify unsafe practices which would result in minor personal
iniury or product and property damage. NOTE is used to highlight
suggestions which will result in enhanced installation, reliability or
operation.