BROAN FG7S 80 Percent AFUE High Efficiency Upflow Horizontal and Downflow Gas Furnaces Owner’s Manual

BROAN FG7S 80 Percent AFUE High Efficiency Up flow Horizontal and

Downflow Gas Furnaces

Technical Specifications

• Model: FG7S (A and K Series)
• Features: 100% fired and tested, High Efficiency
• Upflow/Horizontal and Downflow Gas Furnaces, Induced Draft – 80+ AFUE, Low Boy Height, Tubular primary heat exchanger, 30 second blower delay at start-up, 30 second post purge, Hot surface igniter, Color coded wire harness, High static blowers, 90 second cooling cycle blower-off delay (TDR), Flexible category I venting system, High efficiency blower kits, Multi-speed direct drive blower, LP convertible, Diagnostic lights for easy troubleshooting without counting flashes, Integrated control board, Two piece door design, Blower Compartment
• Input Range: 45,000 – 126,000 Btuh

Product Usage Instructions

Installation
Follow the instructions provided in the user manual to install the gas furnace. Ensure that the unit is installed in a suitable location with proper ventilation and clearances as specified in the manual.

Operation
To operate the gas furnace

1. Make sure the gas supply to the unit is turned on.
2. Set the thermostat to the desired temperature.
3. The integrated control board will control the ignition and heating process automatically.
4. The diagnostic lights on the control board can be used for troubleshooting in case of any issues.

Maintenance
Regular maintenance is important to ensure the efficient and safe operation of the gas furnace. Follow these maintenance guidelines:

• Inspect and clean the combustion tube, burners, and flame sensor regularly.
• Check and replace the air filters as recommended by the manufacturer.
• Keep the blower compartment clean and free from debris.
• Ensure that the venting system is clear and free from obstructions.

Troubleshooting
If you encounter any issues with the gas furnace, refer to the diagnostic lights on the control board for troubleshooting guidance. If the issue persists, contact your local installer or the Nortek Global HVAC LLC warranty department for further assistance.

FAQ

1. What is AFUE?
   AFUE stands for Annual Fuel Utilization Efficiency. It is a measure of how efficiently a gas furnace converts fuel into usable heat over a typical heating season. The higher the AFUE rating, the more efficient the furnace.

2. Can the gas furnace be converted to use LP (liquefied petroleum) gas?
   Yes, the gas furnace is LP convertible. Follow the instructions provided in the user manual for proper conversion procedures.

3. How often should I clean or replace the air filters?
   The air filters should be inspected regularly and cleaned or replaced as recommended by the manufacturer. In general, it is recommended to clean or replace the filters every 1-3 months depending on the usage and air quality.

TECHNICAL SPECIFICATIONS

FG7S (A and K Series)

• High Efficiency Upflow/Horizontal and Downflow Gas Furnaces Induced Draft – 80+ AFUE Input 45,000 – 126,000 Btuh The high efficiency gas furnace may be installed free standing in a utility room, basement, or enclosed in an alcove or closet. The rounded corner jacket provides a pleasing “appliance appearance.” Design certified by CSA for application in Canada and the United States.

FEATURES and BENEFITS

• 100% fired and tested: All units and each component are tested on the manufacturing line.
• Best packaging in the industry: Unique corner post design assures product will arrive to the homeowner dent free.
• Low Boy Height: Easy to apply in low ceiling applications, works well with taller high SEER coils, easier to handle and install.
• Tubular primary heat exchanger: Heavy gauge aluminized steel heat exchanger assures a long life.
• 30 second blower delay at start-up: Assures a warm duct temperature at furnace start-up. Adjustable blower off settings (60, 90, 120 and 180 seconds).
• 30 second post purge: Increases life of heat exchanger.
• Hot surface igniter : Innovative application of a silicon nitride igniter. Utilizes proven Smartlite® technology.
• Color coded wire harness: Designed to fit the components, all with quick-connect fittings for ease of service and replacement.
• High static blowers: All models equipped with high static lowers.
• 90 second cooling cycle blower-off delay (TDR): increases cooling performance when matched with a NORDYNE coil.
• Flexible category I venting system : May be vented with dedicated venting system or common vented with other category one appliances.
• High efficiency blower kits : Maximize efficiencies. On select units, a SEER improvement of up to 1 point is realized.
• Multi-speed direct drive blower : Designed to give a wide range of cooling capacities. Switches on PCB, provide ultra easy motor speed selection.
• LP convertible: Simple burner orifice and regulator spring change for ease of convertibility.
• Diagnostic lights for easy troubleshooting without counting flashes : Dedicated light for flame signal strength and 2 lights in combination to indicate all other fault codes with easy to recognize states without counting flashes.
• Integrated control board: Incorporates connections for electronic air cleaner and humidifier.
• Two piece door design: Enhances furnace appearance and uses captured screws to prevent loosing door screws.
• Blower Compartment: Insulated for ultra quiet operation.

GAS FURNACE COMPONENTS

1. Blower Assembly
2. Blower Door Switch
3. Burner Assembly
4. Control Board
5. Flame Sensor
6. Gas Manifold
7. Gas Valve
8. Igniter
9. Inducer
10. Insulated Combustion Tube (Downflow Models)
11. Low Voltage Transformer
12. Main Air Limit Switch
13. Pressure Switch
14. Roll-Out Switch(s)

DIMENTIONS

BLOWER PERFORMANCE – FG7SA

• ( ) Can be C or N
• • Factory Set Cooling Speed
• ** Factory Set Heating Speed

NOTES

1. Two openings are required for airflows above 1600 CFM if filter(s) is(are) adjacent to furnace.
2. Temperature rises in the table are approximate. Actual temperature rises may vary.
3. Temperature rises shaded in gray are not recommended.

•  ( ) Can be C or N
• • Factory Set Cooling Speed
• ** Factory Set Heating Speed

NOTES:

1. Temperature rises in the table are approximate. Actual temperature rises may vary.
2. Temperature rises shaded in gray are not recommended.

SPECIFICATIONS

ACCESSORIES

GENERAL TERMS OF LIMITED WARRANTY

• Nortek Global HVAC LLC will furnish a replacement for any part of this product which fails in normal use and service within the terms and conditions of the warranty.
• For complete details of the Limited Warranty, including applicable terms and conditions, see your local installer or contact the Nortek Global HVAC LLC warranty department for a copy.
• Before purchasing this appliance, read important energy cost and efficiency information available from your retailer.

Specifications and illustrations subject to change without notice and without incurring obligations. Printed in U.S.A (06/2015)

• 213D-0614 (Replaces 213D-0309)
• www.broanhvac.net
• Broan® trademark used under license. ® Nortek Global HVAC, LLC. All Rights Reserved.

References

• TCPDF

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