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Desa RJ70 - page 1
POR T ABLE FORCED AIR HEA TER OWNER’S MANUAL 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. Heater Sizes: RJ45 And RJ70 ...
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Desa RJ70 - page 2
2 104950 POR T ABLE FORCED AIR HEA TERS RJ45 And RJ70 UNP ACKING 1. Remove all packing items applied to heater for shipment. 2. Remove all items from carton. 3. Check items for shipping damage. If heater is damaged, promptly inform dealer where you bought heater . Carbon Monoxide Poisoning: Early signs of carbon monoxide poisoning re- semble the ? ...
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Desa RJ70 - page 3
3 104950 OWNER’S MANUAL PRODUCT IDENTIFICA TION Figure 1 - RJ45 Handle Fuel Cap Lower Shell Power Cord Fuel Tank Hot Air Outlet Air Filter End Cover Fan Guard Upper Shell Side Cover Ignition Control Assembly (assembly on inside of side cover) Handle Fuel Cap Lower Shell Power Cord Fuel Tank Hot Air Outlet Air Filter End Cover Fan Guard Upper Shel ...
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Desa RJ70 - page 4
4 104950 POR T ABLE FORCED AIR HEA TERS RJ45 And RJ70 Figure 3 - Cross Section Operational View Fuel Filter Air Line To Burner Air Output Filter Air Pump Air Intake Filter Cool Air In Fan Combustion Chamber Ignitor or Spark Plug Motor Clean Heated Air Out Ignition Control Assembly or Electronic Ignitor Air For Fuel System Air For Combustion And Hea ...
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Desa RJ70 - page 5
5 104950 OWNER’S MANUAL Item Fuel tank Air output and lint filters Air intake filter Fuel filter RJ45: Ignitor RJ70: Spark Plug Fan blades Motor WARNING: Never service heater while it is plugged in, operating, or hot. Severe burns and electrical shock can occur. STORING, TRANSPOR TING, OR SHIPPING Note: If shipping, transport companies re- qui ...
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Desa RJ70 - page 6
6 104950 POR T ABLE FORCED AIR HEA TERS RJ45 And RJ70 TROUBLESHOOTING RJ45 WARNING: Never service heater while it is plugged in, operating, or hot. Severe burns and electrical shock can occur. REMEDY 1. Check circuit breaker in electrical panel 2. Check all electrical connections. See W iring Diag rams, page 12 3. If fan does not turn freely , see ...
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Desa RJ70 - page 7
7 104950 OWNER’S MANUAL TROUBLESHOOTING Continued RJ70 WARNING: Never service heater while it is plugged in, operating, or hot. Severe burns and electrical shock can occur. 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 ...
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Desa RJ70 - page 8
8 104950 POR T ABLE FORCED AIR HEA TERS RJ45 And RJ70 PUMP PRESSURE ADJUSTMENT 1. Remove pressure gauge plug from filter end cover . 2. Install accessory pressure gauge (part number HA1 180). 3. Start heater (see Opera tion , page 5). Al- low motor to reach full speed. 4. Using a flat blade screwdriver , adjust pressure. T urn relief valve to righ ...
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Desa RJ70 - page 9
9 104950 OWNER’S MANUAL Fuel Filter Side Cover Upper Fuel Line Figure 9 - Fuel Filter Removal 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. W ash fuel filter with clean fuel an ...
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Desa RJ70 - page 10
10 104950 POR T ABLE FORCED AIR HEA TERS RJ45 And RJ70 NOZZLE (RJ45) 1. Remove upper shell (see Upper Shell Removal , page 8). 2. Remove fan (see Fa n , page 8). 3. Remove fuel and air line hoses from nozzle adapter . 4. T urn nozzle adapter 1/4 turn to left and pull toward motor to remove. 5 . Place nozzle adapter into vise and lightly tighten. 6 ...
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Desa RJ70 - page 11
11 104950 OWNER’S MANUAL Sandpaper Figure 22 - Sanding Rotor Figure 21 - Gap Adjusting Screw Locations Figure 20 - Rotor Location O TOR PFA/P 056 Insert Rotor Air Output Filter Blade Pump Plate Air Intake Filter Filter End Cover Fan Guard 0.08/0.10 mm Gap Measured With Feeler Gauge Blade Rotor Gap Adjusting Screw Gap Adjusting Screw SER VICE PROC ...
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Desa RJ70 - page 12
12 104950 POR T ABLE FORCED AIR HEA TERS RJ45 And RJ70 Figure 23- Wiring Diagram For RJ70 WIRING DIAGRAMS Figure 22- Wiring Diagram For RJ45 White Photo- cell Black Blue Flame- Out Control B Reset Button R Red Blue White Spark Plug Green/ Yellow Black Power Plug 100V/50 or 60 Hz Green White White White Red Green Terminal Board Ignitor Plug Receptac ...
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Desa RJ70 - page 13
13 104950 OWNER’S MANUAL ACCESSORIES Purchase accessories and parts from your nearest dealer. AIR GAUGE KIT - HA1180 Special tool to check pump pressure. HEAVY DUTY WHEELS AND HANDLE KIT - HA1202 For heavy duty applications. Makes your heater even more portable and convenient. A 008 IGNITION CONTROL ASSEMBLY/PHOTOCELL TESTER - HA1170 Special tool ...
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Desa RJ70 - page 14
14 104950 POR T ABLE FORCED AIR HEA TERS RJ45 And RJ70 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 9-1 9-2 9-3 9-4 9-5 17 18 19 20 21 22 23 24 25 26 27 28 29 30 34 35 36 32 38 33 31 42 41 40 39 37 ILLUSTRA TED P ARTS BREAKDOWN RJ45 Motor and Pump Assembly 12-1 12-2 12-18 12-4 12-3 12-17 12-16 12-5 12-6 12-15 12-8 12-9 12-10 12-7 12-14 12-13 12-11 12-12 ...
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Desa RJ70 - page 15
15 104950 OWNER’S MANUAL P ARTS LIST RJ45 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. KEY PART NO. NUMBER DESCRIPTION QTY. 1 M51104-01 Handle 1 2 098511-36 Upper Shell 1 3 M11 ...
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Desa RJ70 - page 16
16 104950 POR T ABLE FORCED AIR HEA TERS RJ45 And RJ70 ILLUSTRA TED P AR TS BREAKDOWN RJ70 40 41 43 5 47 46 2 4 3 6 7 8 10 11 12 12 14 18 21 22 24 27 28 29 30 31 32 34 38 37 19 13 9 33 35 36 42 39 23 44 45 1 26 15 17 20 16 25 48 10-1 18-1 18-18 18-2 18-3 18-4 18-17 18-16 18-15 18-14 18-7 18-6 18-5 18-8 18-9 18-10 18-11 18-12 18-13 Motor and Pump As ...
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Desa RJ70 - page 17
17 104950 OWNER’S MANUAL P ARTS LIST RJ70 ∆ Not available as an assembly ** Included in Rotor Kit (Part No. HA3004) ⊕ Included in Filter Kit (Part No. HA3014) ∞ Included in Pump Adjustment Kit (Part No. HA3020) KEY PART PART NO. NUMBER DESCRIPTION QTY. 18-17 M8643** Blade 4 18-18 FHPF3-5C Screw, #10-32 x 5/8" 2 19 M50050 Rubber Cap 1 2 ...
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Desa RJ70 - page 18
W ARRANTY AND REP AIR SER VICE WARRANTY SERVICE Should your heater require service, return it to your nearest authorized service center. 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 c ...
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