1. Important Safety Information
Read all instructions carefully before installing, operating, or servicing this appliance. Failure to follow these instructions could result in property damage, personal injury, or death.
- Ensure all gas and electrical connections are made by a qualified technician.
- Verify proper ventilation to prevent carbon monoxide buildup.
- Do not store flammable materials near the furnace.
- Always turn off the gas supply and disconnect power before performing any maintenance or service.
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
2. Product Overview
The Dometic Mojave Small Doored Furnace (Model DFS) is a compact, 16,000 BTU heating unit designed for recreational vehicles. It operates on LP Gas and 12V DC power, offering efficient and quiet heating. Its low-profile design allows for flexible installation in various configurations.
This image displays the Dometic Mojave Small Doored Furnace, highlighting its compact dimensions. The unit measures 7 inches in height, 12 inches in width, and 20 inches in depth, illustrating its suitability for flexible installation in recreational vehicles.
3. Setup and Installation
This furnace is designed for either horizontal or vertical installation. An outside access door is required and sold separately.
3.1 Unpacking
- Carefully remove the furnace from its packaging.
- Inspect the unit for any shipping damage. Report any damage to your dealer immediately.
- Verify that all components listed in the 'Scope of delivery' (Furnace, Duct Adaptors, and Manual) are present.
3.2 Mounting and Venting
- Select a suitable location within the RV that allows for proper air circulation and access for maintenance.
- Ensure adequate clearance around the furnace as specified in the detailed installation manual (refer to Dometic DFSAD12, DFSD12, DFSD16, DFSD20, DFMD16, DFMD20, DFMD25, DFMD30, DFMD35, DFLD35, DFLD40, DFLA35, DFLA40 - Installation Instructions AMER(en) for comprehensive guidance).
- Install the furnace securely using appropriate fasteners.
- Connect the exhaust and intake vents to the outside access door (sold separately). Ensure all seals are airtight.
3.3 Gas and Electrical Connections
- Connect the LP gas supply line to the furnace. Use only approved gas fittings and ensure all connections are leak-free.
- Connect the 12V DC power supply to the furnace's electrical terminals. Observe correct polarity.
- Install any necessary thermostats or control wiring according to the wiring diagram provided in the full installation manual.
- Test all connections for leaks and proper operation before initial use.
4. Operating Instructions
This section provides general guidance for operating your Dometic Mojave furnace. For detailed operational procedures, refer to the comprehensive operating manual.
4.1 Initial Startup
- Ensure the LP gas supply is turned on and the 12V DC power is connected.
- Open all gas valves leading to the furnace.
- Set the thermostat to the desired temperature. The furnace will initiate its ignition sequence.
- If the furnace fails to ignite after several attempts, turn off the thermostat, wait a few minutes, and then try again. If issues persist, refer to the troubleshooting section.
4.2 Normal Operation
- The furnace will cycle on and off automatically to maintain the set temperature.
- The unit is designed for quiet operation due to reduced air turbulence.
- Monitor the exhaust for proper venting.
4.3 Shutting Down
- To turn off the furnace, set the thermostat to its lowest setting or to the 'OFF' position.
- For extended periods of non-use, turn off the LP gas supply valve.
5. Maintenance
Regular maintenance ensures optimal performance and longevity of your furnace. Always disconnect power and turn off the gas supply before performing any maintenance.
5.1 Annual Inspection
- Have a qualified service technician inspect the furnace annually.
- Check all gas connections for leaks.
- Inspect the exhaust and intake vents for obstructions or damage.
- Clean the blower wheel and motor if necessary.
5.2 Cleaning
- Keep the area around the furnace clear of dust, debris, and flammable materials.
- Periodically clean the exterior of the furnace with a damp cloth. Do not use abrasive cleaners.
6. Troubleshooting
Refer to this table for common issues and their potential solutions. If the problem persists, contact a qualified service technician.
| Problem | Possible Cause | Solution |
|---|---|---|
| Furnace does not ignite | No LP gas supply, faulty ignition, power issue | Check gas tank level and valve. Verify 12V DC power. Consult service manual for ignition system. |
| Furnace cycles on and off too frequently | Restricted airflow, incorrect thermostat setting | Ensure vents are clear. Adjust thermostat. |
| No heat output | No gas, blower not operating, thermostat issue | Check gas supply. Verify electrical connections. Test thermostat. |
| Unusual noises | Loose components, debris in blower | Inspect for loose parts. Clean blower area. |
7. Specifications
| Brand | Dometic |
| Model Info | DFS (DFSD16111) |
| Part Number | 38917 |
| Cooling Power (BTU) | 16,000 |
| Fuel Type | Liquid Gas (LPG) |
| Voltage | 12V DC |
| Input Current (DC) | 4.3 A |
| Product Dimensions (H x W x D) | 7 in. x 12 in. x 20 in. |
| Item Weight | 20.8 lbs |
| Material Type | Steel |
| Noise Level | 51 Decibels |
| Certification | ETL |
8. Warranty and Support
Dometic products are manufactured to high-quality standards and come with a manufacturer's warranty. For specific warranty details, claims, or technical support, please refer to the documentation included with your purchase or visit the official Dometic website.
It is recommended to register your product to facilitate warranty service and receive important product updates.
For further assistance, please contact Dometic Customer Service.
