Atwood Mobile Products Furnace Manual

The Atwood Mobile Products Furnace is a high-efficiency RV furnace designed for mobile applications, featuring automatic ignition, multi-speed blower, thermal safety switch, and compatibility with 12V DC power systems. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

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

Features at a Glance

Key components: Burner assembly, heat exchanger, multi-speed blower, control board, thermostat, gas valve, exhaust system.

Feature	Description
Automatic ignition	Electronic spark ignition system
Multi-speed blower	Variable speed for optimal airflow
Thermal safety switch	Prevents overheating
12V DC operation	Compatible with RV electrical systems
Gas valve	Controls propane/natural gas flow
Heat exchanger	Efficient heat transfer system
Exhaust outlet	Vents combustion gases safely
Air intake	Fresh air supply for combustion
Control board	Manages furnace operations
Thermostat connection	For temperature control

Installation

Unpack and inspect contents. Ensure proper ventilation space.

Mount furnace: Secure to floor or wall with provided brackets.
Connect gas line: Use approved gas piping and fittings.
Wire electrical: Connect 12V DC power and thermostat wires.
Install exhaust: Route exhaust pipe to outside with proper clearance.
Connect air intake: Ensure unobstructed fresh air supply.

WARNING! Gas appliances require professional installation. Ensure all connections are leak-tested.

First-Time Setup

Power on furnace; follow startup sequence.

Check gas supply: Ensure propane tank is open and pressurized.
Set thermostat: Adjust to desired temperature setting.
Initial ignition: System will attempt automatic ignition.
Verify operation: Check for proper flame and airflow.
Test safety features: Verify thermal switch operation.

CAUTION! Never bypass safety devices. Ensure proper ventilation during operation.

Specifications

BTU Rating: Varies by model (typically 16,000-30,000 BTU)
Power Source: 12V DC
Gas Type: Propane or Natural Gas
Ignition: Electronic spark ignition
Blower: Multi-speed DC motor
Efficiency: High-efficiency heat exchanger
Dimensions: Varies by model
Weight: Typically 15-25 lbs
Operating Temp Range: Standard RV conditions

Controls and Settings

Access via thermostat or control board. Basic controls: Power switch, thermostat, blower speed selector.

Thermostat: Temperature setting, fan control, system on/off.

Blower Settings: Low, Medium, High speed options. Gas Control: Automatic valve operation. Safety Controls: Thermal cutoff, flame sensor, pressure switch. Diagnostic: LED error codes on control board.

Connecting Components

Gas line: Approved flexible gas hose. Electrical: 12V DC power and thermostat wiring. Venting: Exhaust and intake pipes.

Turn off all power and gas before connecting.
Use proper fittings for gas connections (leak test required).
Follow wiring diagram for electrical connections.
Ensure vent pipes are securely connected and sealed.

Tip: Always use approved materials and follow local codes.

Operating Procedures

Supports automatic temperature control and manual operation.

Startup: Set thermostat above room temperature.
Ignition sequence: Blower runs, then ignition attempt.
Normal operation: Maintains set temperature automatically.
Shutdown: Lower thermostat setting or turn off power.
Emergency stop: Turn off gas supply and power.

WARNING! Never operate without proper ventilation. Monitor for unusual odors or sounds.

Safety Features

Thermal Safety Switch: Cuts power if overheating detected. Flame Sensor: Monitors burner flame. Pressure Switch: Ensures proper venting. Gas Valve: Automatic shutoff if ignition fails.

Maintenance & Cleaning

Turn off power and gas before maintenance. Clean air intake and exhaust regularly. Inspect burner annually.

CAUTION! Only qualified technicians should service gas components. Keep area around furnace clear.

Regulatory Information

Troubleshooting

Symptom	Possible Cause	Corrective Action
No ignition	Gas supply/ignition	Check gas valve; verify spark ignition; check control board.
Blower not running	Power/thermostat	Check 12V power; verify thermostat setting; inspect blower motor.
Furnace cycles off	Overheating/venting	Check air intake/exhaust; verify thermal switch; clean heat exchanger.
No heat output	Gas flow/ignition	Verify gas pressure; check burner assembly; inspect flame sensor.
Error codes flashing	System fault	Refer to diagnostic chart in manual; reset system if applicable.

Reset: Turn power off for 30 seconds then restart.

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