The Luxaire GM9S080C16UP11K is a high-efficiency gas furnace with 80,000 BTU input capacity, 80% AFUE rating, single-stage operation, multi-speed blower motor, electronic ignition, and durable heat exchanger construction. Designed for residential heating applications with standard venting requirements. Below are key sections for safety, features, installation, operation, maintenance, and troubleshooting.
Key components: Durable aluminized steel heat exchanger, electronic hot surface ignition, multi-speed direct drive blower, integrated control board, pressure switches, flame sensor, and rollout switches.
| Feature | Description |
|---|---|
| Heat Exchanger | Aluminized steel tubular design for durability |
| Ignition System | Electronic hot surface ignition |
| Blower Motor | Multi-speed direct drive for optimal airflow |
| Control Board | Integrated microprocessor for system control |
| Gas Valve | Single-stage automatic gas control |
| Pressure Switches | Safety verification of venting operation |
| Flame Sensor | Monitors burner flame presence |
| Rollout Switches | Safety protection against flame rollout |
| Filter Rack | Standard 1-inch filter accommodation |
| Venting | Standard Category I venting system |
Professional installation required. Verify local codes and obtain permits.
WARNING! Gas appliances can be hazardous; installation must comply with local codes and manufacturer specifications. Carbon monoxide hazard exists with improper installation.
Professional startup procedure required for proper operation and warranty validation.
CAUTION! Only qualified HVAC technicians should perform startup procedures. Improper setup can create hazardous conditions.
Integrated control board manages all furnace operations with LED status indicator.
Control Board Functions: Ignition sequence, blower control, safety monitoring, diagnostic codes.
Thermostat Connection: Standard 24V connections (R, W, G, C, Y).
Operating Sequence: Call for heat → Inducer motor on → Pressure switch verification → Hot surface ignition → Gas valve opens → Flame detection → Blower on after delay → Satisfy call for heat → Shutdown sequence.
LED Status Codes: Steady on = normal operation; Flashing = fault condition (refer to troubleshooting).
Regular maintenance required for optimal performance and safety.
Tip: Keep area around furnace clean and free of combustible materials.
Category I venting system required for proper operation and safety.
WARNING! Improper venting can cause carbon monoxide poisoning. Vent system must be installed per manufacturer specifications and local codes.
Multiple safety systems protect against hazardous conditions.
| Safety Device | Function |
|---|---|
| Flame Rollout Switches | Detects flame outside combustion chamber |
| Pressure Switches | Verifies proper venting operation |
| Flame Sensor | Confirms burner ignition |
| High Limit Switch | Prevents overheating |
| Ignition Control | Safe ignition sequence with trial for ignition |
| Gas Valve | Automatic shutoff if flame not detected |
Regular maintenance ensures efficiency, reliability, and safety.
Monthly: Check/replace air filter; visually inspect area around furnace.
Annually (Professional Service): Complete system inspection, clean burners and heat exchanger, check gas pressure, verify safety controls, inspect venting, check electrical connections, perform combustion analysis.
CAUTION! Turn off electrical power and gas supply before performing any maintenance. Only qualified technicians should service gas components.
ANSI Z21.47/CSA 2.3: Certified for natural gas operation. UL listed. Must be installed in accordance with National Fuel Gas Code (NFPA 54), National Electrical Code (NFPA 70), and local building codes. Manufactured to meet ENERGY STAR® requirements where applicable. For technical support, contact Luxaire Customer Service at 1-855-733-3445 or visit www.luxaire.com.
| Symptom | Possible Cause | Corrective Action |
|---|---|---|
| Furnace won't start | Power, thermostat, door switch | Check circuit breaker, thermostat setting, door switch engagement |
| No heat | Gas supply, ignition, filter | Verify gas valve on, check for ignition attempts, replace dirty filter |
| Short cycling | Dirty filter, high limit | Replace filter, check for restricted airflow, verify proper venting |
| Blower won't stop | Thermostat fan setting | Check thermostat fan setting (should be AUTO for heating) |
| LED flashing code | Fault condition | Count flashes and refer to diagnostic chart in service manual |
| Unusual noises | Blower, inducer, ductwork | Inspect blower wheel, inducer motor, check for loose panels |
Reset Procedure: Turn thermostat off, turn off electrical power for 30 seconds, restore power, turn thermostat to heat mode.
Service: 1-855-733-3445; www.luxaire.com