American Standard Furnace Freedom 80 Install Manual

The American Standard Freedom 80 is a high-efficiency gas furnace designed for residential heating applications. This 80% AFUE furnace features single-stage operation, durable heat exchanger construction, multiple venting options, and compatibility with various thermostat systems. Below are key sections for safety, installation procedures, electrical connections, startup, operation, and maintenance guidelines.

Features at a Glance

Key components: Durable aluminized steel heat exchanger, induced draft combustion system, hot surface ignition, multi-speed blower motor, and integrated control board.

Safety Precautions

Critical safety information for installation and operation.

1. Disconnect electrical power before servicing or installing.
2. Install carbon monoxide detectors in living areas.
3. Ensure proper combustion air and ventilation.
4. Follow all local codes and manufacturer specifications.
5. Use only approved venting materials and methods.

WARNING! Failure to follow safety precautions may result in fire, explosion, property damage, personal injury, or death. Gas furnaces produce carbon monoxide - ensure proper venting.

Pre-Installation Requirements

Site preparation and requirements before installation.

1. Verify furnace size matches heating load calculation.
2. Ensure adequate clearance: 0" sides, 1" front, 6" top, 0" rear.
3. Check gas supply: Natural gas with 5" WC inlet pressure.
4. Verify electrical: 120V, 60Hz, 15 amp circuit.
5. Plan condensate drainage route and trap.

CAUTION! Furnace must be installed level and on solid, non-combustible surface.

Specifications

• Model Series: Freedom 80 Single-Stage Gas Furnace
• AFUE: 80%
• Input BTU/H: 40,000 - 120,000 (varies by model)
• Gas Type: Natural Gas (LP conversion kit available)
• Electrical: 120V, 60Hz, 15A
• Blower Speeds: Multi-speed for heating and cooling
• Venting: Category I, 3" minimum vent diameter
• Dimensions: Varies by model (typical: 21"W x 21"D x 45"H)
• Shipping Weight: 90-140 lbs depending on model
• Sound Rating: Standard residential sound levels

Installation Procedures

Step-by-step furnace installation guide.

1. Position furnace: Place on level, solid surface in approved location.
2. Install filter rack: Mount appropriate filter system.
3. Connect ductwork: Secure supply and return air connections.
4. Set blower speeds: Adjust for proper CFM per heating requirements.
5. Install flue pipe: Connect vent system per local codes.
6. Secure furnace: Fasten to floor or platform as required.

Tip: Use bubble level to ensure furnace is perfectly level in all directions.

Electrical Connections

Wiring and electrical requirements.

1. Disconnect power at main electrical panel.
2. Connect line voltage: 120V supply to furnace junction box.
3. Connect thermostat: Low voltage wiring to control board.
4. Ground furnace: Connect equipment grounding conductor.
5. Verify polarity: Ensure proper hot and neutral connections.

WARNING! All electrical work must comply with NEC and local codes. Use copper conductors only.

Gas Line Connections

Natural gas supply connection procedures.

1. Shut off gas supply at main valve.
2. Install sediment trap: Required within 3 feet of furnace.
3. Connect gas line: Use approved black iron or CSST piping.
4. Apply leak detection solution: Test all connections for leaks.
5. Verify gas pressure: 5" WC natural gas at manifold.

CAUTION! Never use matches or open flame to check for gas leaks. Use approved leak detection fluid.

Venting Systems

Category I venting installation requirements.

1. Determine vent route: Minimum 3" diameter vent pipe.
2. Maintain slope: 1/4" per foot upward toward termination.
3. Install supports: Maximum 4-foot intervals for horizontal runs.
4. Use proper materials: B-vent or L-vent approved piping.
5. Terminate properly: Follow clearance requirements from windows, doors, and intake vents.

WARNING! Improper venting can cause carbon monoxide poisoning. Follow all manufacturer and code requirements.

Startup and Commissioning

Initial startup and system verification.

1. Verify all connections: Electrical, gas, venting, ductwork.
2. Install clean air filter: Proper size and direction.
3. Open gas supply valve: Check for leaks again.
4. Restore electrical power: Turn on disconnect switch.
5. Set thermostat: Call for heat and observe operation.
6. Measure temperature rise: Verify within nameplate range.
7. Check vent draft: Ensure proper combustion gas removal.

CAUTION! Never bypass safety controls during startup. Replace any defective components.

Operating Instructions

Normal furnace operation and user controls.

Thermostat Operation: Set to HEAT mode, adjust temperature setting. Furnace will cycle automatically.

Filter Maintenance: Replace or clean filter monthly during heating season.

Power Switch: Furnace disconnect switch for emergency shutoff.

Pilot Light: Electronic ignition - no standing pilot to light.

Blower Operation: Automatically controlled by furnace control board.

Maintenance and Service

Service Contact: 1-800-332-1111; www.americanstandardair.com

Emergency: If you smell gas, evacuate immediately and call gas company from outside.