1. Manuals
  2. Brands
  3. Desa Manuals
  4. Heater
  5. RJ70
  6. Owner's manual

Desa RJ70 Owner's Manual

Portable forced air heater
Hide thumbs Also See for RJ70:
Table of Contents

Advertisement

Quick Links

Download this manual
PORTABLE
FORCED
AIR HEATER
OWNER'S MANUAL
Heater Sizes:
RJ45 And RJ70
IMPORTANT: Read and understand this manual before assembling, starting,
or servicing heater. Improper use of heater can cause serious injury. Keep
this manual for future reference.

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the RJ70 and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Desa RJ70

Summary of Contents for Desa RJ70

  • Page 1 PORTABLE FORCED AIR HEATER OWNER’S MANUAL Heater Sizes: RJ45 And RJ70 IMPORTANT: Read and understand this manual before assembling, starting, or servicing heater. Improper use of heater can cause serious injury. Keep this manual for future reference.

  • Page 2: Safety Information

    RJ45 And RJ70 PORTABLE FORCED AIR HEATERS SAFETY INFORMATION WARNINGS IMPORTANT: Read this Owner’s Manual carefully and completely before trying to assemble, oper- ate, or service this heater. Im- proper use of this heater can cause serious injury or death from burns, fire, explosion, electrical...

  • Page 3: Product Identification

    Figure 1 - RJ45 Hot Air Outlet Lower Shell Fuel Gauge Fuel Tank Receptacle Side Cover ON/OFF Switch Flame-Out Control Reset Button Power Cord Figure 2 - RJ70 104950 OWNER’S MANUAL Handle Upper Shell Fan Guard Air Filter End Cover Fuel Cap Handle...

  • Page 4: Theory Of Operation

    This ignites the fuel/air mixture in the combustion chamber. The Ignition System (RJ70): The elec- tronic ignitor sends voltage to the spark plug. The spark plug ignites the fuel and air mixture.

  • Page 5: Operation

    60 hertz grounded outlet. 6. Switch heater ON. RJ45 Note: Ignitor will preheat for five seconds, then heater will start. RJ70 Note: If heater will not start, push in flame-out control reset button (see Figure 2, page 3). TO STOP HEATER 1.

  • Page 6: Troubleshooting

    RJ45 And RJ70 PORTABLE FORCED AIR HEATERS TROUBLESHOOTING RJ45 OBSERVED FAULT Motor does not start five seconds after heater is plugged in and switched ON Motor starts and runs but heater does not ignite Heater ignites but ignition control assembly...
  • Page 7 TROUBLESHOOTING Continued RJ70 OBSERVED FAULT Heater ignites, but flame-out control shuts off heater after a short period of time Heater will not ignite, but motor runs for a short period of time Motor does not start when heater is plugged...

  • Page 8: Service Procedures

    RJ45 And RJ70 PORTABLE FORCED AIR HEATERS SERVICE PROCEDURES WARNING: Never service heater while it is plugged in, op- erating, or hot. Severe burns and electrical shock can occur. UPPER SHELL REMOVAL 1. Remove screws along each side of heater using 5/16" nut-driver. These screws attach upper and lower shells together.

  • Page 9: Fuel Filter

    SERVICE PROCEDURES Continued FUEL FILTER 1. Remove side cover screws using 5/16" nut-driver (see Figure 9). 2. Remove side cover. 3. Pull upper fuel line off fuel filter neck. 4. Carefully pry bushing and fuel filter out of fuel tank. 5.
  • Page 10 RJ45 And RJ70 PORTABLE FORCED AIR HEATERS SERVICE PROCEDURES Continued SPARK PLUG (RJ70) 1. Remove upper shell (see Upper Shell Removal, page 8). 2. Remove fan (see Fan, page 8). 3. Remove spark plug wire from spark plug. 4. Remove spark plug from burner head using 13/16"...

  • Page 11: Pump Rotor

    SERVICE PROCEDURES Continued NOZZLE (RJ70) 1. Remove upper shell (see Upper Shell Removal, page 8). 2. Remove fan (see Fan, page 8). 3. Remove fuel and air line hoses from burner head. 4. Remove spark plug wire from spark plug.

  • Page 12: Wiring Diagrams

    White Figure 22- Wiring Diagram For RJ45 White White Green/ Green Motor Yellow Ignitor Spark Plug Black Relay Figure 23- Wiring Diagram For RJ70 Orange Green Motor Black Black Receptacle White Blue Photocell Blue Power Plug 100V/50 or 60 Hz...

  • Page 13: Specifications

    Purchase accessories and parts from your nearest dealer. AIR GAUGE KIT - HA1180 Special tool to check pump pressure. 104950 OWNER’S MANUAL RJ45 RJ70 11,900 17,600 Use Only Kerosene or No. 1 Fuel Oil 15.1 18.9 100V/50 or 60 Hz...

  • Page 14: Illustrated Parts Breakdown

    RJ45 And RJ70 PORTABLE FORCED AIR HEATERS ILLUSTRATED PARTS BREAKDOWN RJ45 12-1 12-2 12-3 12-4 12-18 12-17 12-16 12-5 12-15 Motor and Pump Assembly 12-7 12-8 12-6 12-14 12-12 12-9 12-13 12-11 12-10 104950...

  • Page 15: Parts List

    This list contains replaceable parts used in your heater. When ordering parts, be sure to provide the correct PARTS LIST model and serial numbers (from the model plate), then the part number and description of the desired part. RJ45 PART NUMBER DESCRIPTION M51104-01...

  • Page 16: Illustrated Parts

    RJ45 And RJ70 RJ70 PORTABLE FORCED AIR HEATERS ILLUSTRATED PARTS BREAKDOWN RJ70 10-1 10-2 10-4 10-3 10-5 10-6 Burner Head Assembly 18-18 18-4 18-1 18-2 18-3 18-17 18-16 18-15 18-14 Motor and Pump Assembly 10-7 18-5 18-6 18-7 18-8 18-9...
  • Page 17 PARTS LIST This list contains replaceable parts used in your heater. When ordering parts, be sure to provide the correct model and serial numbers (from the model plate), then the part number and description of the desired part. RJ70 PART PART...

  • Page 18: Warranty And Repair Service

    Proof of purchase must be presented with the heater. The heater will be inspected. A defect may be caused by faulty materials or workman- ship. If so, DESA International will repair or replace the heater without charge. REPAIR SERVICE Return the heater to your nearest authorized service center.

This manual is also suitable for:

Rj45

Table of Contents

Save PDF