amana furnace manual amh80804bnbb

The Amana AMH80804BNBB is a high-efficiency gas furnace with 80% AFUE rating, single-stage operation, multi-speed blower motor, durable heat exchanger, electronic ignition system, built-in draft inducer, safety controls, and compatibility with standard thermostat systems. Designed for residential use with natural gas, it features easy installation, quiet operation, and reliable heating performance. Below are key sections for safety, features, installation, operation, maintenance, and troubleshooting.

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

Features at a Glance

Key components: Durable heat exchanger, electronic ignition system, multi-speed blower motor, draft inducer assembly, gas valve, pressure switches, flame sensor, and control board.

Feature	Description
Heat Exchanger	Durable construction for efficient heat transfer
Electronic Ignition	Reliable spark ignition system
Blower Motor	Multi-speed for optimal airflow
Draft Inducer	Ensures proper venting and combustion
Gas Valve	Precise gas flow control
Pressure Switches	Safety monitoring of vent system
Flame Sensor	Detects burner flame
Control Board	System operation and diagnostics
Thermostat Connections	Standard 24V connections
Safety Controls	Overheat protection and limit switches

Installation

Unpack and inspect all components. Ensure proper location with adequate clearance.

Position furnace: Place on stable, level surface with proper clearances.
Connect gas supply: Use approved gas piping and fittings.
Connect electrical: Wire to proper voltage supply with disconnect switch.
Connect venting: Install approved vent pipe per local codes.
Connect thermostat: Wire to R, W, G, C terminals.

WARNING! Installation must be performed by qualified technician. Gas leaks can cause explosion. Follow all local codes.

First-Time Setup

After installation, perform initial startup procedure.

Verify all connections: Gas, electrical, venting, and thermostat.
Check gas pressure: Adjust if necessary per specifications.
Set thermostat: Place in heating mode with temperature above room temp.
Start furnace: Observe ignition sequence and flame establishment.
Check airflow: Verify proper air delivery through registers.

CAUTION! Never bypass safety controls. Test carbon monoxide detectors.

Specifications

Model: AMH80804BNBB
AFUE Rating: 80%
Heating Capacity: 80,000 BTU/H
Gas Type: Natural Gas
Stages: Single-Stage Operation
Blower Motor: Multi-Speed PSC
Ignition: Electronic Spark
Voltage: 120V AC, 60Hz
Dimensions: Standard furnace cabinet size
Venting: Category I

Controls and Settings

Access control board for diagnostic LEDs and dip switch settings. Thermostat controls heating operation.

Control Board: LED status lights, dip switches for blower speeds, diagnostic codes.

Thermostat Settings: Heat mode, fan auto/on, temperature setpoint. Blower Speeds: Adjustable via dip switches for heating operation. Safety Controls: High limit switch, pressure switches, flame rollout switch. Diagnostic LEDs: Flash codes for troubleshooting.

Connecting Thermostat

Standard 24V thermostat wiring with R, W, G, C terminals.

Turn off power to furnace at disconnect switch.
Remove control board cover to access thermostat terminals.
Connect thermostat wires: R (24V), W (Heat), G (Fan), C (Common).
Secure connections and replace cover.
Restore power and test operation.

Tip: Use thermostat compatible with single-stage gas furnace systems.

Operating Instructions

Normal heating operation controlled by thermostat.

Set thermostat to desired temperature in HEAT mode.
Furnace will automatically cycle on when heat is needed.
Observe normal startup sequence: Draft inducer, ignition, main burner.
Blower will start after warm-up period.
System will shut down when thermostat is satisfied.

WARNING! Never operate without proper venting. Report unusual noises or odors immediately.

Maintenance Procedures

Regular maintenance ensures optimal performance and safety.

Monthly: Check and replace air filter.
Annual: Professional inspection and cleaning.
Check vent system for obstructions.
Inspect burners and heat exchanger.
Verify safety controls operation.

CAUTION! Maintenance should be performed by qualified technician only.

Care & Cleaning

Keep furnace area clean and unobstructed. Replace air filters regularly.

CAUTION! Turn off power before cleaning. Use vacuum for dust removal. Never use water or cleaning fluids.

Regulatory Information

UL listed and ANSI certified. Complies with applicable safety standards. Natural gas appliance must be installed according to National Fuel Gas Code and local codes. Manufactured by Amana Heating & Air Conditioning. For support, contact 1-888-292-6262 or visit www.amana-hac.com.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Furnace won't start	Power, thermostat, gas	Check power switch, thermostat setting, gas valve
No heat	Pilot/ignition, filter	Check ignition sequence, replace air filter
Short cycling	Filter, limit switch	Replace filter, check for overheating
Blower not running	Motor, capacitor	Check blower motor and capacitor
Unusual noises	Blower, inducer	Inspect blower wheel and draft inducer

Reset: Turn power off for 30 seconds then restore.

Service: 1-888-292-6262; www.amana-hac.com