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Desa H.S.I. manual

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Table of contents for the manual

  • Page 1

    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: 40,000 55,000 60,000 70,000 110,000 115,000 150,000 155,000 165,000 and 200,000 Btu/Hr Models H.S.I. Series POR T ABLE FORCED AIR HEA TERS OWNER’S MANUAL [...]

  • Page 2

    108871 2 For more information, visit www.desatech.com For more information, visit www.desatech.com SAFETY INFORMA TION WARNINGS IMPORTANT: Read this owner’s manual carefully and completely before trying to assemble, operate, or ser- vice this heater. Improper use of this heater can cause serious injury or death from burns, fire, explosion, elect[...]

  • Page 3

    108871 3 3 For more information, visit www.desatech.com For more information, visit www.desatech.com Side Cover Lower Shell Fuel Cap Hot Air Outlet Upper Shell Power Cord Fuel Tank Fan Guard Lower Shell Side Cover Fuel Tank Upper Shell Hot Air Outlet Handle Fan Guard Air Filter End Cover Fuel Cap Power Cord Ignition Control Assembly (On Inside of S[...]

  • Page 4

    108871 4 For more information, visit www.desatech.com For more information, visit www.desatech.com Figure 4 - Cross Section Operational View THEORY OF OPERATION FUELS VENTILATION THEOR Y OF OPERA TION The Fuel System: The air pump forces air through the air line. The air is then pushed through the nozzle. This air causes fuel to be lifted from the [...]

  • Page 5

    108871 5 5 For more information, visit www.desatech.com For more information, visit www.desatech.com Figure 5 - Wheel and Handle Assembly, 110/115/150/155/165/ 200 Models Only Wheel Support Frame Fuel Tank Flange Cap Nut Wheel Nut Axle Extended Hub Air Inlet Handle Hot Air Outlet Screw ASSEMBL Y (FOR 110/115/150/155/165/200 MODELS ONLY) These model[...]

  • Page 6

    108871 6 For more information, visit www.desatech.com For more information, visit www.desatech.com WARNING: Before operating heater or any appli- ance from a portable generator, verify that generator has been properly connected to earth ground. Im- proper grounding or failure to ground generator can result in electrocution if a ground fault occurs.[...]

  • Page 7

    108871 7 7 For more information, visit www.desatech.com For more information, visit www.desatech.com REMEDY 1. Check circuit breaker in electrical panel 2. T urn thermostat knob to a higher setting 3. Check all electrical connections. See W iring Diagrams, page 17 4. If fan does not turn freely , see Pump Ro- tor , page 14 5. Replace ignition contr[...]

  • Page 8

    108871 8 For more information, visit www.desatech.com For more information, visit www.desatech.com SER VICE PROCEDURES WARNING: To avoid risk of burn and electrical shock, never attempt to service heater while it is plugged in, operating, or hot. Upper Shell Fan Guard Figure 7 - Upper Shell Removal, 40/50/60/70 Models Only Figure 8 - Upper Shell Re[...]

  • Page 9

    108871 9 9 For more information, visit www.desatech.com For more information, visit www.desatech.com Figure 15 - Fuel Filter Removal, 40/55/60/70 Models Fuel Filter and Bushing Side Cover Upper Fuel Line Fuel Filter, Bushing, and Lower Fuel Line Upper Fuel Line Side Cover Figure 16 - Fuel Filter Removal, 110/115/150/155/165 Models SERVICE PROCEDURE[...]

  • Page 10

    108871 10 For more information, visit www.desatech.com For more information, visit www.desatech.com (For 200 Model Only) 1. Remove side cover screws using 5/16" nut-driver . 2. Remove side cover (see Figure 17). 3. Pull lower fuel line off the fuel valve fitting (see Figure 17). Note: See Figure 16, page 9 if your model does not come equipped [...]

  • Page 11

    108871 11 11 For more information, visit www.desatech.com For more information, visit www.desatech.com CAUTION: Do not bend or strike ignitor element. Handle with care. IGNITOR 1. Remove upper shell and fan guard (See Upper Shell Removal , page 8). 2. Remove fan (see page 8). 3. Remove 4 side cover screws with a 5/16" nut driver . Remove side [...]

  • Page 12

    108871 12 For more information, visit www.desatech.com For more information, visit www.desatech.com SER VICE PROCEDURES Continued Figure 22 - Removing Air and Fuel Line Hoses (110/115 Models Only) NOZZLE ASSEMBLY (For 40/55/60/70/110/115/150/155/165 Models Only) 1. Remove upper shell (see Upper Shell Removal , page 8). 2. Remove fan (see Fan , page[...]

  • Page 13

    108871 13 13 For more information, visit www.desatech.com For more information, visit www.desatech.com SERVICE PROCEDURES Figure 26 - Removing Air and Fuel Line Hoses (200 Model Only) Fuel Line Hose Nozzle/ Adapter Assembly Combustion Chamber Nozzle Adapter Bracket Photocell Bracket Air Line Hose Nozzle Adapter Bracket Screw Nozzle Face Nozzle Nozz[...]

  • Page 14

    108871 14 For more information, visit www.desatech.com For more information, visit www.desatech.com PUMP ROTOR (Procedure if Rotor is Binding) 1. Remove upper shell (see Upper Shell Removal , page 8). 2. Remove filter end cover screws using 5/16" nut driver (see Fig- ure 29 or 30 ). 3. Remove filter end cover and air filters. 4. Remove pump [...]

  • Page 15

    108871 15 15 For more information, visit www.desatech.com For more information, visit www.desatech.com SER VICE PROCEDURES Continued IGNITION CONTROL ASSEMBLY WARNING: High voltage! SERVICE PROCEDURES TECHNICAL SERVICE REPLACEMENT PARTS Figure 34 - Replacing Fuse Fuse Fuse Cover Fuse Clips 1. Unplug heater . 2. Remove side cover screws (4) using 5/[...]

  • Page 16

    108871 16 For more information, visit www.desatech.com For more information, visit www.desatech.com WIRING DIAGRAMS SPECIFICATIONS WIRING DIAGRAMS Power Plug 120V/60Hz Blue Blue White White Photocell Green Green Red Black Y ellow Y ellow Motor Ignitor Ignition Control Assembly Photocell Photocell Ignitor Motor Return A C Neutral (L2) 120V (L1) Igni[...]

  • Page 17

    108871 17 17 For more information, visit www.desatech.com For more information, visit www.desatech.com Power Plug 120V/60Hz Blue Blue White White Photocell Ignition Control Assembly Green Green Red Black Black Y ellow Y ellow Motor Ignitor Thermostat Photocell Photocell Ignitor Motor Return A C Neutral (L2) 120V (L1) Ignitor Motor Figure 36 - Wirin[...]

  • Page 18

    108871 18 For more information, visit www.desatech.com For more information, visit www.desatech.com 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 33 34 35 31 32 38 37 36 9-2 9-1 9-3 9-4 9-5 ILLUSTRA TED P AR TS BREAKDOWN 40/55/60/70 MODELS Motor and Pump Assembly 12-11 12-18 12-17 12-16 12-15 12-14 12-13 12-12 12-[...]

  • Page 19

    108871 19 19 For more information, visit www.desatech.com For more information, visit www.desatech.com P ARTS LIST 40/55/60/70 MODELS 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.[...]

  • Page 20

    108871 20 For more information, visit www.desatech.com For more information, visit www.desatech.com ILLUSTRA TED P AR TS BREAKDOWN 110/115/150/155/165 MODELS ILLUSTRATED PARTS BREAKDOWN 110/115/150/155/165 Models 1 2 3 23 19 9 10 16 11 12 15 25 27 24 28 29 20 22 21 30 31 17 14 14 33 34 35 36 32 26 18 5 4 6 7 8 7-2 7-1 7-5 7-4 7-3 37 13 38 7-6 Motor[...]

  • Page 21

    108871 21 21 For more information, visit www.desatech.com For more information, visit www.desatech.com P ARTS LIST 110/115/150/155/165 MODELS 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 desir[...]

  • Page 22

    108871 22 For more information, visit www.desatech.com For more information, visit www.desatech.com ILLUSTRA TED P AR TS BREAKDOWN 200 MODELS ILLUSTRATED PARTS BREAKDOWN Standard Model R200A Thermostat Models R200AT, RM200AT, B200AT, and REM200AT 1 2 3 23 19 9 10 11 12 13 15 25 27 24 28 29 30 31 17 14 14 33 34 35 36 32 26 5 4 6 7 8 16 18 37 38 20 2[...]

  • Page 23

    108871 23 23 For more information, visit www.desatech.com For more information, visit www.desatech.com 16 102756-01 Fan Guard 1 17 M2 741 7 Drain Plug (Includes “ o ” Ring) 1 18 103523-01 Rubber Bushing 1 19 M51345-03 Fuel Line (Models with Fuel Valve Assy) 1 M51345-04 Fuel Line (Models without Fuel Valve Assy) 1 20 M51150-01*** Fuel Filter 1 2[...]

  • Page 24

    108871 24 For more information, visit www.desatech.com For more information, visit www.desatech.com WHEELS AND HANDLES WHEELS AND HANDLES 110/115/150/155/165/200 Models WHEELS AND HANDLE PARTS LIST KEY PART PART NO. NUMBER DESCRIPTION QTY. 1 HA2203 Handle (110/115) 2 (If Equipped) HA2204 Handle (150/155/165/200) 2 (If Equipped) 2 M12345-33 Screw, #[...]

  • Page 25

    108871 25 25 For more information, visit www.desatech.com For more information, visit www.desatech.com ACCESSORIES ACCESSORIES Purchase accessories and parts from your nearest dealer or service center. If they can not supply these accessories or parts, either contact your nearest parts dealer or DESA International at 1-800-458-2472 for referral inf[...]

  • Page 26

    108871 26 For more information, visit www.desatech.com For more information, visit www.desatech.com W ARRANTY AND REP AIR SERVICE Printed in U.S.A. 108871-01 Rev. D 04/02 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 i[...]