Gibson Furnace Owners Manual

The Gibson Furnace is a high-efficiency residential heating system designed for reliable performance and energy savings. This furnace features advanced combustion technology, multiple heating stages, variable-speed blower motor, digital controls, safety shut-off systems, and compatibility with smart thermostats. Below are key sections for safety, features, installation, operation, maintenance, and troubleshooting.

1. Features at a Glance 2. Installation Requirements 3. First-Time Setup 4. Technical Specifications 5. Controls and Settings 6. Operating Instructions 7. Maintenance Schedule 8. Safety Features 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Heat exchanger, blower assembly, gas valve, igniter, flame sensor, control board, air filter, venting system.

Feature	Description
Heat Exchanger	Stainless steel construction for durability and efficiency
Blower Motor	Variable-speed ECM motor for quiet operation
Gas Valve	Precise gas flow control with multiple stages
Ignition System	Hot surface igniter for reliable startup
Flame Sensor	Safety device to detect burner flame
Control Board	Microprocessor-based for advanced operation
Air Filter	Standard 1-inch or 4-inch media filter slot
Venting	PVC pipe compatible for sidewall or roof venting
Thermostat Connection	Compatible with most 24V thermostats
Safety Switches	Multiple pressure and temperature safety switches

Installation Requirements

Professional installation required. Ensure proper clearances and venting.

Location: Install in dry, well-ventilated area with adequate clearance.
Gas Connection: Use approved gas piping; pressure test required.
Electrical: 120V AC, 60Hz dedicated circuit with proper grounding.
Venting: Follow local codes for PVC vent pipe installation.
Drain Line: Install condensate drain line with trap.

WARNING! Gas appliances can be dangerous if improperly installed. Use licensed professional for installation.

First-Time Setup

Initial startup must be performed by qualified technician.

System Check: Verify all connections are secure and proper.
Gas Pressure: Adjust gas valve to manufacturer specifications.
Airflow: Set blower speeds for proper CFM delivery.
Thermostat: Connect and configure compatible thermostat.
Test Operation: Run through complete heating cycle.

CAUTION! Never attempt initial startup without proper training and equipment.

Technical Specifications

Heating Capacity: 40,000-120,000 BTU/h (model dependent)
Efficiency: 80-98% AFUE (model dependent)
Stages: Single-stage, Two-stage, or Modulating
Blower Type: Variable-speed ECM motor
Voltage: 120V AC, 60Hz
Gas Type: Natural Gas or LP (conversion kit required)
Venting: PVC, CPVC, or ABS approved
Dimensions: Varies by model (check specific model label)
Warranty: Limited lifetime heat exchanger, 10 years parts

Controls and Settings

Access control board via front panel. LED status lights indicate system operation.

Control Board: POWER switch, STATUS LED, DIP switches for configuration.

Operation Modes: HEAT, COOL (if AC equipped), FAN ONLY. Temperature Control: Via connected thermostat. Blower Settings: Adjustable delays and speeds. Safety Limits: Automatic high-limit protection. Diagnostic Codes: LED flash patterns for troubleshooting.

Operating Instructions

Use thermostat to control furnace operation.

Set thermostat to desired temperature in HEAT mode.
Furnace will automatically cycle on and off to maintain temperature.
For continuous airflow, set thermostat to FAN ON position.
For seasonal shutdown, turn off power at disconnect switch.

Tip: Keep thermostat away from heat sources and direct sunlight for accurate temperature reading.

Maintenance Schedule

Regular maintenance ensures optimal performance and safety.

Monthly: Check and replace air filter if dirty.
Seasonal: Professional inspection before heating season.
Annual: Complete professional maintenance including:
- Clean heat exchanger and burners
- Check gas pressure and combustion
- Inspect vent system and drain lines
- Lubricate motor if required
- Test safety controls

WARNING! Only qualified technicians should perform internal maintenance.

Safety Features

Multiple safety systems protect against hazardous conditions.

Safety Feature	Function
Flame Rollout Switch	Shuts off gas if flame escapes burner area
High Limit Switch	Prevents overheating by shutting off burners
Pressure Switches	Ensures proper venting before ignition
Flame Sensor	Detects burner flame and shuts off gas if no flame
Gas Valve	Automatic shut-off if system malfunctions

Care & Cleaning

Turn off power before any cleaning. Keep area around furnace clear.

Exterior: Wipe with dry cloth only.
Air Filter: Replace every 1-3 months depending on usage.
Vents: Keep supply and return vents unobstructed.
Drain Line: Ensure condensate drain is clear and flowing.

CAUTION! Never use water or cleaning chemicals on furnace components.

Regulatory Information

UL certified for safety standards. ANSI Z21.47 compliant for gas-fired central furnaces. Meets DOE energy efficiency requirements. Manufactured to ISO 9001 quality standards. For support, visit www.gibsonhvac.com or contact 1-800-888-8888. Keep this manual for future reference.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Furnace won't start	Power, thermostat, switch	Check power supply; verify thermostat settings; ensure door switch engaged.
No heat	Gas supply, filter, pilot	Verify gas valve on; check for clogged filter; ensure igniter working.
Short cycling	Filter, limit switch	Replace dirty filter; check for blocked vents; test limit switch.
Blower not working	Power, motor, control	Check blower door switch; test motor capacitor; verify control board signal.
Unusual noises	Motor, blower, ducts	Inspect blower wheel; check motor bearings; examine ductwork.

Reset: Turn power off for 5 minutes, then restart.

Service: 1-800-888-8888; www.gibsonhvac.com