American Freedom 80 Furnace Manual

The American Freedom 80 is a high-efficiency gas furnace with 80% AFUE rating, featuring electronic ignition, variable-speed blower motor, multi-speed operation, durable heat exchanger, built-in diagnostic system, safety controls, and compatibility with standard thermostats. Designed for residential use with natural gas or propane capability. Below are key sections for safety, features, installation, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: Durable aluminized steel heat exchanger, electronic hot surface ignition, variable-speed ECM blower motor, integrated control board, flame sensor, pressure switches, and diagnostic LED.

Installation Requirements

Professional installation required. Verify local codes and obtain permits.

1. Location: Install in dry, clean area with adequate combustion air and service clearance.
2. Gas Connection: Use black iron pipe; test for leaks with soap solution.
3. Electrical: 120V AC, 60Hz dedicated circuit required; proper grounding essential.
4. Venting: Follow manufacturer specifications for vent pipe size and routing.
5. Ductwork: Ensure proper sizing and sealing for optimal performance.

WARNING! Gas appliances can be hazardous; installation must comply with all local codes and be performed by qualified technician.

First-Time Setup

Initial startup must be performed by qualified technician.

1. Gas pressure check: Verify inlet and manifold pressures per specifications.
2. Venting verification: Confirm proper draft and venting integrity.
3. Electrical checks: Verify proper voltage and grounding.
4. Combustion analysis: Measure flue gas temperatures and CO levels.
5. Blower settings: Adjust blower speeds for heating mode as needed.
6. Thermostat configuration: Set up thermostat for proper furnace operation.

CAUTION! Never attempt first-time startup without proper training and equipment.

Technical Specifications

• Model Series: American Freedom 80
• AFUE Rating: 80%
• Input BTU/H: 40,000 - 120,000 (varies by model)
• Output BTU/H: 32,000 - 96,000 (varies by model)
• Gas Type: Natural gas or propane (conversion kit required)
• Electrical: 120V AC, 60Hz, 5-8 amps
• Blower Motor: Variable-speed ECM
• Static Pressure: 0.1 - 0.8 in. w.c.
• Vent Size: 3" - 5" depending on model and installation
• Dimensions: Varies by model (typically 21"W x 21"D x 40"H)

Controls and Settings

Integrated control board manages all furnace operations with diagnostic capabilities.

Control Board Features: LED status indicator, dip switch settings, terminal connections for thermostat, safety circuit monitoring.

Operating Modes: Heating mode, blower-only mode, standby mode. Blower Settings: Adjustable delays for blower on/off. Diagnostic Codes: Flashing LED indicates specific error codes for troubleshooting. Safety Controls: Automatic shutdown for high temperature, flame rollout, pressure switch faults.

Venting System

Category I venting system required for proper operation and safety.

1. Vent Material: PVC, CPVC, or approved metal vent pipe.
2. Vent Sizing: Follow manufacturer specifications for proper diameter.
3. Vent Routing: Maintain proper slope and support; avoid excessive elbows.
4. Termination: Locate vent termination away from windows, doors, and air intakes.
5. Combustion Air: Ensure adequate fresh air supply for proper combustion.

Tip: Regular inspection of vent system is essential for safe operation.

Operating Instructions

Normal operation controlled by thermostat; furnace operates automatically.

1. Thermostat Setting: Set thermostat to desired temperature; switch to HEAT mode.
2. Startup Sequence: Control board initiates pre-purge, ignition trial, and main burner operation.
3. Normal Operation: Burner fires; blower activates after warm-up period.
4. Shutdown: Thermostat satisfied; burner shuts off; blower continues for cool-down.
5. Blower Only: Use FAN ON setting at thermostat for continuous air circulation.

WARNING! Never adjust gas valve or limit settings without proper training.

Maintenance Schedule

Regular maintenance ensures efficiency, reliability, and safety.

Safety Information

Critical safety information for proper furnace operation.

Carbon Monoxide: Install CO detectors near sleeping areas. Gas Leaks: If gas odor detected, evacuate immediately and call gas company. Fire Hazard: Keep combustible materials away from furnace. Electrical Safety: Disconnect power before servicing. Burn Hazard: Surfaces become hot during operation.

EMERGENCY SHUTOFF: Familiarize yourself with gas shutoff valve location and procedure.

Regulatory Compliance

ANSI Z21.47/CSA 2.3: Certified for safety standards. UL Listed: Electrical components certified. National Fuel Gas Code: Complies with NFPA 54. Local Codes: Installation must meet all applicable local building codes. For technical support, contact manufacturer at 1-800-555-HEAT or visit www.americanfreedomfurnace.com.

Troubleshooting Guide

Diagnostic Codes: Refer to control board LED flash patterns for specific error codes.

Service: 1-800-555-HEAT; www.americanfreedomfurnace.com