Atwood 7916 Furnace Manual

The Atwood 7916 is a high-efficiency RV furnace designed for reliable heating in recreational vehicles. This furnace features a forced-air heating system with electronic ignition, multiple heat settings, safety shut-off controls, and easy maintenance access. 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 to Power 7. Operating the Furnace 8. Maintenance Procedures 9. Safety Features 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Electronic ignition system, blower motor, heat exchanger, thermostat control, safety shut-off valve, combustion chamber.

Feature	Description
Electronic Ignition	Automatic spark ignition for reliable startup
Forced Air System	High-efficiency blower for even heat distribution
Multiple Heat Settings	Adjustable temperature control
Safety Shut-off	Automatic shut-off in case of malfunction
Easy Access Panel	Removable front panel for maintenance
Thermostat Control	Precise temperature regulation
Combustion Chamber	Stainless steel construction for durability
Vent System	Dual venting for intake and exhaust
Gas Valve	Automatic gas flow control
Blower Motor	Quiet operation with variable speeds

Installation

Unpack and inspect contents. Ensure proper ventilation and clearances.

Select installation location: Choose area with adequate ventilation and access.
Mount furnace: Secure to floor or wall using provided brackets.
Connect gas line: Use approved gas piping and fittings.
Connect venting: Install intake and exhaust vents according to specifications.
Connect electrical: Wire to 12V DC power source.
Connect thermostat: Install and wire thermostat control.

WARNING! Installation must be performed by qualified technician. Ensure proper gas line connections to prevent leaks.

First-Time Setup

Complete installation checks before initial operation.

Check gas connections: Test for leaks with soap solution.
Verify electrical connections: Ensure proper 12V DC power.
Test ignition: Turn on thermostat to verify proper startup.
Check airflow: Ensure vents are clear and blower operates smoothly.
Set thermostat: Program desired temperature settings.

CAUTION! Never operate furnace without proper ventilation. Test carbon monoxide detector.

Specifications

Model: Atwood 7916
Fuel Type: Propane/Natural Gas
BTU Output: 16,000 BTU
Power Requirement: 12V DC
Dimensions: 14" x 10" x 7"
Weight: 12 lbs
Airflow: 120 CFM
Efficiency: 85% AFUE
Operating Temp Range: -40°F to 120°F
Vent Size: 2-inch diameter

Controls and Settings

Thermostat control with multiple temperature settings. Manual on/off switch with indicator lights.

Control Panel: Power switch, thermostat dial, pilot light indicator, fault indicator.

Temperature Settings: Adjustable from 50°F to 85°F. Blower Speed: Automatic adjustment based on temperature setting. Safety Controls: Automatic shut-off for high temperature, flame failure, and ventilation issues.

Connecting to Power

12V DC power connection with proper grounding.

Turn off all power sources before connecting.
Connect positive and negative wires to appropriate terminals.
Ensure proper grounding to chassis.
Check fuse rating (15A recommended).

Tip: Use marine-grade wiring for corrosion resistance in RV applications.

Operating the Furnace

Simple operation via thermostat control.

Turn on power: Switch furnace to ON position.
Set temperature: Adjust thermostat to desired setting.
Wait for ignition: Electronic ignition will activate automatically.
Monitor operation: Listen for blower and check for heat output.
Adjust as needed: Change temperature settings as required.
Shut down: Turn thermostat to lowest setting, then power off.

WARNING! Never block air vents. Ensure proper ventilation during operation.

Maintenance Procedures

Regular maintenance ensures optimal performance and safety.

Monthly: Clean air intake and exhaust vents.
Seasonal: Inspect and clean heat exchanger.
Annual: Professional inspection of gas lines and combustion chamber.
As needed: Replace air filter and check blower operation.

CAUTION! Always turn off power and gas supply before performing maintenance.

Safety Features

Multiple safety systems for reliable operation: High temperature limit switch, flame failure detection, ventilation monitoring, gas pressure regulation.

Regulatory Information

UL certified for RV use. Complies with ANSI Z21.44 standards for gas-fired furnaces. CSA approved for North American markets. For technical support, contact Atwood Customer Service at 1-800-555-HEAT or visit www.atwoodmobile.com.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Furnace won't start	Power/gas supply	Check 12V power; verify gas valve open; check thermostat setting.
No heat output	Ignition failure	Check spark electrode; verify gas flow; clean combustion chamber.
Blower not working	Motor/electrical	Check blower motor; verify wiring connections; replace if necessary.
Furnace cycles on/off	Thermostat/overheat	Check thermostat calibration; clean heat exchanger; verify proper airflow.
Gas odor	Leaks/ventilation	Immediately shut off gas; check for leaks; ensure proper ventilation.

Reset: Turn power off for 30 seconds, then restart.

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