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Carrier OM9GFC-03 Owner's Manual

Condensing gas furnace
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Condensing Gas Furnace
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 personal
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 nearby
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.
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.
Owner's Manual
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, and electrical
parts that have been wet, or the entire furnace if deemed
necessary.
WARNING
!
A11263

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Summary of Contents for Carrier OM9GFC-03

  • Page 1 Condensing 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 personal injury, death, or property damage.

  • Page 2: Table Of Contents

    TM Mark indicates a Congratulations! In light of rising energy costs, a 90+% AFUE manufacturer’s participation in the Condensing Gas Furnace from Carrier Corporation is among the program For verification of certification for individual soundest investments today’s homeowner can make.

  • Page 3: Furnace Components

    FURNACE COMPONENTS (Furnace shown in upflow position; may be used in downflow or horizontal orientation or applications. HOT SURFACE IGNITER MANUAL RESET GAS BURNER ROLLOUT SWITCH FLAME SENSOR MANUAL RESET ROLLOUT SWITCH GAS VALVE MAIN LIMIT SWITCH (BEHIND GAS VALVE) OPERATING INSTRUCTIONS NOT SHOWN (LOCATED ON MAIN FURNACE DOOR, SEE...

  • Page 4: Safety Considerations

    SAFETY CONSIDERATIONS Installing and servicing of 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 and replacing air filters. All other operations must be performed by trained service personnel.

  • Page 5: Before Starting Your Furnace

    extended period of time, have it checked periodically for proper WARNING 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. FIRE OR EXPLOSION HAZARD BEFORE STARTING YOUR FURNACE Failure to follow this warning could result in personal injury, death, or property damage.

  • Page 6: Steps For Starting Your Furnace

    Read and follow the operating instructions on inside of main furnace door, especially the item that reads as fol- lows: (See Fig. 31.) “Wait 5 minutes to clear out any gas. Then smell for gas, including near the floor. If you smell gas, STOP! Fol- low “B”...

  • Page 7: Shutting Down Your Furnace

    TWO-STAGE GAS CONTROL SINGLE-STAGE GAS CONTROL GAS CONTROL SWITCH SHOWN IN “OFF” POSITION MODULATING GAS CONTROL A92359 Fig. 14 - - Turn on Electrical Supply GAS CONTROL SWITCH SHOWN IN “OFF” POSITION 9. Open the external manual gas valve. See Fig. 15. A11292 Fig.

  • Page 8: Performing Routine Maintenance

    Comfort Fant - - On all but the base series furnace, the blower 4. Remove main furnace door. See Fig. 10. speed can be increased or decreased if desired due to change of 5. Turn control switch on the gas control to OFF position. See seasons, large gatherings in your home, etc.

  • Page 9: Filtering Out Trouble

    a. Remove filter cabinet door. (See Fig. 21 and 22.) CAUTION NOTE: It may be necessary to remove one thumbscrew. b. Slide air filter out of furnace. Keep dirty side up (if CUT HAZARD dirty) to avoid spilling dirt. Failure to follow this caution may result in personal injury. 3.
  • Page 10 A00228 A00226 Fig. 24 - - Removal of Filter from Bottom Blower Cabinet Fig. 22 - - Removal of Filter Cabinet Door from Bottom Blower Cabinet A00229 Fig. 25 - - Replacement of Filter Cabinet Door to Side Blower A00227 Fig.

  • Page 11: Combustion Air And Vent System

    COMBUSTION AIR AND VENT SYSTEM HOT SURFACE IGNITOR WARNING GAS BURNER MANUAL RESET ASSEMBLY LIMIT SWITCH FLAME SENSOR CARBON MONOXIDE POISONING HAZARD MANUAL RESET LIMIT SWITCH MAIN LIMIT SWITCH (BEHIND GAS VALVE) Failure to follow this warning could result in personal injury GAS VALVE or death.

  • Page 12: Winterization

    WINTERIZATION 7. Pour 1 quart of anti-freeze solution into the funnel/tube. Antifreeze should run through the inducer housing, overfill CAUTION condensate trap and flow to an open drain. 8. If a condensate pump is used, check with pump manufacturer to verify pump is safe for use with antifreeze UNIT AND PROPERTY DAMAGE HAZARD used.

  • Page 13: A Check- -Up Checklist

    A CHECK- - UP CHECKLIST BEFORE YOU REQUEST A “SERVICE CALL” Your furnace represents an important investment in your family’s comfort and your home’s value. To keep it performing properly If your furnace is not operating or not performing properly, and to prevent future problems, have a trained service specialist you may save the expense of a service call by checking a few give your furnace a professional check- -up annually.

  • Page 14: Installation Data

    NOTE TO INSTALLER: This manual must be left with the equipment owner. Catalog No: OM9GFC ---03 Copyright 2011 Carrier Corp. S 7310 W. Morris St. S Indianapolis, IN 46231 Printed in U.S.A. Edition Date: 08/11 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.

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