Desa owner's manual propane construction convection heater 30-80,000 btu/hr, 75-200,000 btu/hr (32 pages)
Summary of Contents for Desa D20H
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PORTABLE FORCED AIR HEATERS OWNER’S MANUAL Models: D20H, D30H, and D44H IMPORTANT: Read and understand this manual before assembling, start- ing or servicing heater. Improper use of heater can cause serious injury. Keep this manual for future reference.
D20H, D30H AND D44H MODELS 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...
PRODUCT IDENTIFICATION Hot Air Outlet Upper Shell Lower Shell Fuel Tank Side Cover ON/OFF Switch Figure 1 - D20H Model Hot Air Outlet Lower Shell Fuel Cap Side Cover Figure 2 - D30H and D44H Models 105843 OWNER’S MANUAL Fan Guard...
(rear) of heater is over wheels. Line up holes on fuel tank flange with holes on wheel support frame. 4. For D20H model, place rear handle on top of fuel tank flange. For D30H and D44H models, place front handle and rear handle on top of fuel tank flange.
D20H, D30H AND D44H MODELS PORTABLE FORCED AIR HEATERS STORING, TRANSPORTING, OR SHIPPING If shipping, transport companies re- Note: quire fuel tanks to be empty. 1. Drain fuel tank. Note: Some models have drain plug on underside of fuel tank. If so, remove drain plug to drain all fuel.
TROUBLESHOOTING FAULT CONDITION Motor does not start five seconds after heater is plugged in Motor starts and runs but heater does not ignite Heater ignites but ignition control assembly shuts heater off after a short period of time 105843 OWNER’S MANUAL WARNING: Never service heater while it is plugged in, operating, or hot.
Guard Figure 7 - Upper Shell Removal, D20H Model Fuel Filter Side Cover Figure 9 - Fuel Filter Removal, D20H Model Fuel Filter, Bushing, and Lower Fuel Line Side Cover Figure 10 - Fuel Filter Removal, D30H and D44H Models...
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SERVICE PROCEDURES Continued IGNITOR 1. Remove upper shell and fan guard (see page 8). 2. Remove fan (see page 13). 3. Remove 4 side cover screws with a 5/16" nut driver. Remove side cover (see Figure 9 or 10, page 8). 4.
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filter end cover. Air Intake Filter Lint Filter Air Output Filter Figure 13 - Air Output, Air Intake, and Lint Filters, D20H Model Air Intake Filter Lint Filter Air Output Filter Figure 14 - Air Output, Air Intake, and Lint Filters, D30H and D44H Models...
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8) and the other end to nozzle adapter (see Figure 17, 18,or 19). Route air and fuel line approximately as shown. For D20H model heater, see Figure 17. For D30H model heater, see Figure 18. For D44H model heater, see Figure 19.
SERVICE PROCEDURES Continued IMPORTANT: Remove fan from motor shaft before removing motor from heater. The weight of the motor resting on the fan could damage the fan pitch. 1. Remove upper shell (see page 8). 2. Use 1/8" allen wrench to loosen set- screw which holds fan to motor shaft.
PARTS LIST D20H MODEL PART NUMBER DESCRIPTION 105793-01 ON/OFF Switch M50901-02BT Upper Shell 079919-01 Switch Cover 102432-01 Screw/Lockwasher, 1/2" 098512-64 Combustion Chamber M10908-2 Screw, #6-32 x 3/8" 103154-03 Photocell Bracket M16656-23 Photocell Assembly Burner Strap Assembly 100735-25 Nozzle Assembly 102548-05...
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D20H, D30H AND D44H MODELS PORTABLE FORCED AIR HEATERS ILLUSTRATED PARTS BREAKDOWN D30H MODEL 10-1 10-2 10-3 10-4 10-17 10-16 10-15 10-13 Motor and Pump Assembly 10-5 10-6 10-7 10-8 10-9 10-14 10-13 10-12 10-10 10-11 105843...
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This list contains replaceable parts used in your heater. When ordering parts, be sure to provide the PARTS LIST correct model and serial numbers (from the model plate), then the part number and description of the desired part. D30H MODEL PART NUMBER DESCRIPTION...
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D20H, D30H AND D44H MODELS PORTABLE FORCED AIR HEATERS ILLUSTRATED PARTS BREAKDOWN D44H MODEL 10-1 10-2 10-3 10-4 10-17 10-16 10-15 10-18 Motor and Pump Assembly 10-5 10-6 10-7 10-8 10-9 10-14 10-13 10-12 10-10 10-11 105843...
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This list contains replaceable parts used in your heater. When ordering parts, be sure to provide the PARTS LIST correct model and serial numbers (from the model plate), then the part number and description of the desired part. D44H Model PART NUMBER DESCRIPTION...
D20H, D30H AND D44H MODELS PORTABLE FORCED AIR HEATERS WHEELS AND HANDLES D20H Model KEY PART ACCESSORIES Purchase accessories from your local dealer. AIR GAUGE KIT - HA1180 For all models. Special tool to check pump pressure. PART NUMBER DESCRIPTION...
3004 ED Rotterdam Holland Manufacturer: DESA International, Inc. 2701 Industrial Drive Bowling Green, KY 42101 U.S.A. Kerosene Portable Forced Air Heaters Model Numbers: D20H, D30H, and D44H DESA International, Inc. Vice President, Specialty Products Engineering OWNER’S MANUAL Douglas D. Rohrer Signature...
DESA International, or any alteration or repair by others in such manner as in DESA International's judgement affects the Product materially and adversely, shall void this Warranty.