Owner's Manual
Table Of Contents
- OWNER’S MANUAL
- NOTE: Read the entire instruction manual before starting the installation.
- IMPORTANT FACTS (DO’S AND DON’TS)
- FURNACE COMPONENTS
- TABLE OF CONTENTS
- SAFETY CONSIDERATIONS
- BEFORE STARTING YOUR FURNACE
- 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.
- STARTING YOUR FURNACE
- STEPS FOR STARTING YOUR FURNACE
- 1. Set your room thermostat to the lowest temperature setting (see Fig. 4).
- Fig. 4 – Lowest Temperature Setting
- Fig. 5 – Close Valve
- Fig. 6 – Turn Off Electrical Supply
- Fig. 7 – Remove Furnace Door
- Fig. 8 – Control Switch to OFF
- Fig. 9 – Control Switch to ON
- Fig. 10 – Furnace Door Replaced
- Fig. 11 – Turn On Electrical Supply
- Fig. 12 – Open Valve
- 11. Set the room thermostat to a temperature slightly above the room temperature. This will automatically signal the furnace to start. The inducer motor will start and the hot surface igniter will energize. When hot, the igniter will have an orange glow
- 12. After about 17 seconds, the gas valve permits gas to flow to the main burners where it is ignited. Hot flames begin to warm the furnace’s heat exchanger. After a time delay of approximately 25-45 seconds the furnace blower is switched on.
- 13. Set your thermostat to the temperature that satisfies your comfort requirements.
- SHUTTING DOWN YOUR FURNACE
- 1. Set your room thermostat to the lowest temperature setting (see Fig. 4).
- 2. Close the external manual gas valve (see Fig. 5).
- 3. Turn off electrical supply to the furnace (see Fig. 6).
- 4. Remove outer furnace door (see Fig. 7).
- 5. Turn the switch on the gas control to the OFF position (see Fig. 8).
- 6. Replace the outer furnace door (see Fig. 10).
- 7. If the furnace is being shut down because of a malfunction, call your dealer as soon as possible.
- PERFORMING ROUTINE MAINTENANCE
- FILTERING OUT TROUBLE
- 1. Turn off the electrical supply to the furnace (see Fig. 13).
- Fig. 13 – Turn Off Electrical Supply
- Fig. 14 – Removing Side Filter Cabinet Door
- Fig. 15 – Removing Bottom Filter Cabinet Door
- Fig. 16 – Slide Side Filter Out of Furnace
- Fig. 17 – Slide Bottom Filter Out of Furnace
- 6. Inspect the filter. If torn, replace it.
- a. Factory specified disposable media filter — Do not clean. If dirty, replace only with media filter having the same part number and size. Install with airflow direction arrow pointing towards blower (some models may vary).
- b. Electronic Air Cleaner (EAC) — Refer to EAC Owner’s Manual for maintenance information (some models may vary).
- c. Factory specified disposable filter, do not clean. Replace it with a new filter of same size.
- d. Wash filter (if dirty) in sink, bathtub, or outside with a garden hose. Always use cold tap water. A mild liquid detergent may be used if necessary. Spray water through filter in the opposite direction of airflow. Allow filter to dry.
- 7. Reinstall clean air filter.
- 8. Replace filter cabinet door (see Fig. 18 and Fig. 19).
- 9. Turn on electrical supply to furnace (see Fig. 11).
- 6. Inspect the filter. If torn, replace it.
- Fig. 18 – Replace Side Filter Cabinet Door
- Fig. 19 – Replace Bottom Filter Cabinet Door
- COMBUSTION AREA AND VENT SYSTEM
- 1. Turn off electrical supply to the furnace and remove the access door (see Fig. 6 and Fig. 7).
- 2. Carefully inspect the gas burner for dirt, rust, or scale. Inspect the elbow, flue connection area, and the vent pipe for rust.
- Fig. 20 – Burner Flame
- 3. Inspect the vent pipe for a sag, holes, or a disconnection. A horizontal vent pipe must slope upward away from furnace. If rusty joints or seams, or signs of water leakages are found, call your dealer for service.
- 4. Restore electrical power to the furnace (see Fig. 11).
- 5. Start the furnace and observe its operation. If possible, watch the burner flames. Are they burning bright blue? If not or if you suspect some other malfunction, call your servicing dealer.
- 6. Replace the access door (see Fig. 10).
- BEFORE YOU REQUEST A “SERVICE CALL”
- A200102
- NOTE: Read the entire instruction manual before starting the installation.
© 2022 Carrier. All rights reserved.
Edition Date: 08/22
Catalog No: 80GSFRN-C-03OM
Replaces:OM8GFRC-02
NON-CONDENSING, 80% AFUE GAS FURNACE: OWNER’S MANUAL
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
8
A200102
MAINTENANCE CHECKLIST
In addition to the type of routine maintenance you might be willing to perform; your furnace should be inspected regularly by a properly trained
service technician.
You should work with your dealer or service technician to assure your inspection includes the following at a minimum.
This list may not include all maintenance items, and inspection interval times may vary depending on operational conditions of the furnace.
NOTE TO EQUIPMENT OWNER:
For your convenience, please record the model and serial numbers of your new equipment in the spaces
provided. This information, along with the installation data and dealer contact information will be helpful
should your system require maintenance or service.
FURNACE
Model # _____________________________________
Serial # ______________________________________
AIR CONDITIONER OR HEAT PUMP
Model # _____________________________________
Serial # _____________________________________
INDOOR COIL (Furnace Coil or Fan Coil)
Model # _____________________________________
Serial # _____________________________________
INSTALLATION INFORMATION:
Date Installed ________________________________
DEALERSHIP CONTACT INFORMATION:
Company Name_______________________________
Address______________________________________
_____________________________________________
Phone Number _______________________________
Technician Name _____________________________
_____________________________________________
_____________________________________________
NOTE TO INSTALLER:
This manual must be left with the equipment owner.
DESCRIPTION
INSPECTION INTERVAL
Monthly Semi-Annually Annually
Furnace specific, external items:
Clean or replace air filters. X
Inspect cabinet for signs of damage. X
Inspect and clean door louvers if needed. X
Inspect electrical disconnect for proper function. Repair or replace as necessary. X
Inspect external wiring for damage. X
Inspect gas supply line and manual shut-off for leaks. X
Ensure there is no debris or clutter that could interfere with operation of furnace X
Furnace specific, internal items:
Inspect and clean blower assembly (includes blower housing, blower wheel and motor). X
Inspect gas valve and check for proper manifold gas pressure Adjust as needed. X
Inspect ignition system and safety controls. Clean and adjust as needed. X
Inspect control box, associated controls, wiring and connections. X
Check combustion blower housing for lint and debris and clean as necessary. X
Inspect burner assembly - clean as needed. X
Inspect heat exchanger - clean as needed. X
Inspect flue system-check for proper attachment to the furnace, any dislocated sections,
and for signs of corrosion. Replace if necessary.
X
System:
Inspect airflow system (ductwork)-check for leaks and repair as needed. X
Inspect evaporator coil, drain pan and condensate drain lines as applicable. Clean as
needed.
X