Page 2 - PORTABLE FORCED AIR HEATERS; UNPACKING; WARNINGS
2 102388 PORTABLE FORCED AIR HEATERS 35,000, 50,000, And 55,000 Btu/Hr H.S.I. Series UNPACKING 1. Remove all packing items applied toheater for shipment. 2. Remove all items from carton. 3. Check items for shipping damage. Ifheater is damaged, promptly informdealer where you bought heater. Carbon Mo...
Page 3 - OWNER’S MANUAL; PRODUCT IDENTIFICATION; THEORY OF OPERATION; FUELS; VENTILATION
3 102388 OWNER’S MANUAL PRODUCT IDENTIFICATION Figure 2 - Cross Section Operational View FuelFilter Air LineTo Burner AirOutputFilter Air Pump Air IntakeFilter CoolAir In Fan Combustion Chamber Ignitor Motor CleanHeatedAir Out IgnitionControlAssembly Figure 1 - 55,000 Btu/Hr Model Shown Handle Fuel ...
Page 4 - Item; TO START HEATER; OPERATION; TO STOP HEATER; How To
4 102388 PORTABLE FORCED AIR HEATERS 35,000, 50,000, And 55,000 Btu/Hr H.S.I. Series Item Fuel tank Air output and lint filters Air intake filter Fuel filter Ignitor Fan blades Motor WARNING: Never service heater while it is plugged in, op-erating, or hot. Severe burns andelectrical shock can occur....
Page 5 - TROUBLESHOOTING; REMEDY
5 102388 OWNER’S MANUAL TROUBLESHOOTING 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 Wiring Diagrams, page 10. 3. If fan does not tur...
Page 6 - UPPER SHELL REMOVAL
6 102388 PORTABLE FORCED AIR HEATERS 35,000, 50,000, And 55,000 Btu/Hr H.S.I. Series PUMP PRESSUREADJUSTMENT 1. Remove pressure gauge plug from filterend cover. 2. Install accessory pressure gauge (partnumber HA1180). 3. Start heater (see Operation, page 4). Al-low motor to reach full speed. 4. Usin...
Page 7 - FUEL FILTER
7 102388 OWNER’S MANUAL Fuel Filter Side Cover Upper Fuel Line Figure 8 - Fuel Filter Removal FUEL FILTER 1. Remove 4 side cover screws using5/16" nut-driver. 2. Remove side cover. 3. Pull upper fuel line off fuel filter neck. 4. Carefully pry bushing and fuel filter outof fuel tank. 5. Wash fue...
Page 8 - PUMP ROTOR; NOZZLE
8 102388 PORTABLE FORCED AIR HEATERS 35,000, 50,000, And 55,000 Btu/Hr H.S.I. Series PUMP ROTOR (Procedure if Rotor is Binding) 1. Remove upper shell (see page 6). 2. Remove filter end cover screws using5/16" nut-driver. 3. Remove filter end cover and air filters. 4. Remove pump plate screws usi...
Page 9 - SPECIFICATIONS; PARTS UNDER WARRANTY
9 102388 OWNER’S MANUAL SPECIFICATIONS Output Rating (Btu/Hr) 35,000 50,000 55,000 Fuel Use Only Kerosene or No. 1 Fuel Oil Fuel Tank Capacity (U.S. Gal.) 3.0 4.0 5.0 Fuel Consumption (Gal. Per Hr.) .26 .40 .40 Electric Requirements 120 V/60 Hz (All Models) Amperage (Normal Run) 2.0 2.0 2.0 Motor Sp...
Page 10 - Ignition Control; Ignition Control; WIRING DIAGRAMS
10 102388 PORTABLE FORCED AIR HEATERS 35,000, 50,000, And 55,000 Btu/Hr H.S.I. Series Blue Photocell Power Plug 120V/60Hz IGNITOR Ignitor Blue White Red Gray Gray Green Motor White Black AC NEUTRAL (L2) PHOTOCELL PHOTOCELL MOTOR RETURN MOTOR MAIN 120V (L1) IGNITOR Ignition Control Assembly Green 104...
Page 11 - ACCESSORIES
11 102388 OWNER’S MANUAL ACCESSORIES Purchase accessories and parts from yournearest dealer or service center. If they cannot supply these accessories or parts, eithercontact your nearest Parts Central or DESAInternational for referral information. PartsCentrals are listed in the Authorized ServiceC...
Page 12 - Motor and Pump Assembly
12 102388 PORTABLE FORCED AIR HEATERS 35,000, 50,000, And 55,000 Btu/Hr H.S.I. Series 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 33 31 ILLUSTRATEDPARTSBREAKDOWN REM35BR35DB50HREM50CR55AREM55A Motor and Pump Assembly 12-11 12-18 12...
Page 13 - PARTS LIST
13 102388 OWNER’S MANUAL PARTS LIST This list contains replaceable parts used in your heater. When ordering parts, be sure to provide the correctmodel 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...
Page 14 - WARRANTY AND REPAIR SERVICE; WARRANTY SERVICE; LIMITED WARRANTY; NOT A UPC
WARRANTY AND REPAIR SERVICE 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 heaterwill be inspected. A defect may be caused by faulty materials or workmanship. If so, DESA International...