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Desa H.S.I. Series manual

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Table of contents for the manual

  • Page 1

    R Heater Sizes: 30,000 70,000 90,000 150,000 BTU/Hr 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. PORT ABLE FORCED AIR HEA TERS OWNER’S MANUAL[...]

  • Page 2

    2 099605 Safety Information ......................................................................... 3 Product Identification .................................................................... 4 Unpacking ...................................................................................... 5 Assembly ...........................................[...]

  • Page 3

    3 099605 SAFETY INFORMA TION W ARNINGS IMPORTANT: Read this owner’s manual carefully and completely before trying to assemble, operate, or service this heater. Improper use of this heater can cause serious injury or death from burns, fire, explosion, electrical shock, and carbon monoxide poisoning. Carbon Monoxide Poisoning: Early signs of carbo[...]

  • Page 4

    4 099605 Fuel Cap Lower Shell Power Cord Upper Shell Figure 3 - 150,000 BTU/Hr Model Handle Fuel Cap Lower Shell Side Cover Fuel Tank Figure 1 - 30/70,000 BTU/Hr Models Side Cover Fuel Tank Lower Shell Fuel Cap Fan Guard Upper Shell PRODUCT IDENTIFICA TION Upper Shell Hot Air Outlet Hot Air Outlet Hot Air Outlet Air Filter End Cover Fan Guard Power[...]

  • Page 5

    5 099605 UNP ACKING 1. Remove all packing items applied to heater for shipment. 2. Remove all items from carton. 3. Check items for any shipping damage. If heater is damaged, promptly inform dealer where you bought heater. ASSEMBL Y (For 90,000 and 150,000 BTU/Hr Models Only) These models are furnished with wheels and handles. Wheels, handles, and [...]

  • Page 6

    6 099605 THEOR Y OF OPERA TION The Fuel System: The air pump forces air through the air line. The air is then pushed through the burner head nozzle. This air causes fuel to lift from the tank. A fine mist of fuel is sprayed into the combustion chamber. The Air System: The motor turns the fan. The fan pushes air into and around the combustion chamb[...]

  • Page 7

    7 099605 VENTILA TION OPERA TION Continued Figure 6 - Flame-Out Control Reset Button, 30/70,000 BTU/Hr EDI Models Figure 7 - Flame-Out Control Reset Button, 90,000 BTU/Hr EDI Model Provide a fresh air opening of at least three square feet (2800 square cm) for each 100,000 BTU/Hr rating. Provide extra fresh air if more heaters are being used. Exampl[...]

  • Page 8

    8 099605 OPERA TION Continued Figure 8 - Flame-Out Control Reset Button, 150,000 BTU/Hr EDI Model Continued PREVENT A TIVE MAINTENANCE SCHEDULE Item How Often How To Fuel tank Flush every 150-200 hours See Storage above. of operation or as needed. Air output and Replace every 500 hours of See Air Output, Air Intake , lint filters operation or once[...]

  • Page 9

    9 099605 Continued Item How Often How To Spark plug Clean and regap every 600 See Spark Plug , pages 12 and 13. hours operation or replace as needed. Fan blades Clean every season or as needed. See Fan , page 19. Motor Not required/permanently lubricated TROUBLE- SHOOTING OBSERVED FAULT POSSIBLE CAUSE REMEDY Wrong pump pressure Dirty air output, ai[...]

  • Page 10

    10 099605 Fan Guard Figure 12 - Fuel Filter Removal, 30/70,000 BTU/Hr Models Figure 11 - Upper Shell Removal, 150,000 BTU/Hr Model Figure 9 - Upper Shell Removal, 30/70,000 BTU/Hr Models Figure 10 - Upper Shell Removal, 90,000 BTU/Hr Model Fuel Filter Side Cover Fuel Line Fuel Filter (30/70,000 BTU/Hr Models) 1. Remove side cover screws using 5/16&[...]

  • Page 11

    11 099605 Fuel Filter (90,000 BTU/Hr Model) 1. Remove side cover screws using 5/16" nut-driver. 2. Remove side cover. 3. Pull upper fuel line off fuel filter neck. 4. Carefully pry bushing, lower fuel line, and fuel filter out of fuel tank. 5. Wash fuel filter with clean fuel and replace in tank. 6. Attach upper fuel line to fuel filter ne[...]

  • Page 12

    12 099605 Spark Plug (30,000 BTU/Hr Model) 1. Remove upper shell (see page 10). 2. Remove fan (see page 19). 3. Remove fuel and air line hoses from nozzle assembly. 4. Remove spark plug wire from spark plug. 5. Remove two screws using 5/16" nut-driver and remove burner strap. 6. Place hex-body of spark plug into vise and tighten. 7. Remove spa[...]

  • Page 13

    13 099605 Spark Plug (70/90/150,000 BTU/Hr Models) 1. Remove upper shell (see page 10). 2. Remove fan (see page 19). 3. Remove spark plug wire from spark plug. 4. Remove spark plug from burner head using 13/16" open-end wrench. 5. Clean and regap spark plug electrodes to .055" (1.4 mm) gap. 6. Install spark plug in burner head. 7. Attach [...]

  • Page 14

    14 099605 Air Output, Air Intake, and Lint Filters 1. Remove upper shell (see page 10). 2. Remove filter end cover screws using 5/16" nut- driver. 3. Remove filter end cover. 4. Replace air output and lint filters. 5. Wash or replace air intake filter (see Preventative Maintenance Schedule, page 8). 6. Replace filter end cover. 7. Replace[...]

  • Page 15

    15 099605 Nozzle (30,000 BTU/Hr Model) 1. Remove upper shell (see page 10). 2. Remove fan (see page 19). 3. Remove fuel and air line hoses from nozzle assem- bly. 4. Turn nozzle assembly 1/4 turn to left and pull toward motor to remove. 5. Place plastic hex-body into vise and lightly tighten. 6. Carefully remove nozzle from the nozzle adapter using[...]

  • Page 16

    16 099605 Nozzle (70/90,000 BTU/Hr Models) 1. Remove upper shell (see page 10). 2. Remove fan (see page 19). 3. Remove fuel and air line hoses from burner head. 4. Remove spark plug wire from spark plug. 5. Remove spark plug from burner head using 13/16" open-end wrench. 6. Remove three screws using 5/16" nut-driver and remove burner head[...]

  • Page 17

    17 099605 Nozzle (150,000 BTU/Hr Model) 1. Remove upper shell (see page 10). 2. Remove fan (see page 19). 3. Remove spark plug wire from spark plug. 4. Remove spark plug from burner head using 13/16" open-end wrench. 5. Loosen flare nut using 3/4" open-end wrench. Push fuel tube down. 6. Remove air line hose from burner head. 7. Remove t[...]

  • Page 18

    18 099605 Pump Rotor (Procedure if rotor is binding) 1. Remove upper shell (see page 10). 2. Remove filter end cover screws using 5/16" nut- driver. 3. Remove filter end cover and air filters. 4. Remove pump plate screws using 5/16" nut- driver. 5. Remove pump plate. 6. Remove rotor, insert, and blades. 7. Check for debris in pump. If [...]

  • Page 19

    19 099605 Fan 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 10). 2. Use 1/8" allen wrench to loosen setscrew which holds fan to motor shaft. 3. Slip fan off motor shaft. 4. Clean fan using a soft cloth moistened wi[...]

  • Page 20

    20 099605 WIRING DIAGRAMS Ignitor White Brown Blue Green/Yellow Photocell Spark Plug Flame- Out Control B Reset Button R Red Blue White Blue White Red Red Orange Terminal Board Motor Green/ Yellow Red Motor Start Relay Black S or 2 M or 3 L or 1 230V/50Hz Ignitor White Brown Blue Green/Yellow Photocell Spark Plug Flame- Out Control B Reset Button R[...]

  • Page 21

    21 099605 WIRING DIAGRAMS Blue Green/Yellow 230V/50Hz White Red Orange Terminal Board Ignitor Spark Plug Motor Green/ Yellow Brown Red Orange Figure 40 - Wiring Diagram, 30,000 BTU/Hr EEI Model Ignitor Brown Green/Yellow 230V/50Hz Spark Plug Blue White Red Red Orange Terminal Board Motor Green/ Yellow Red Motor Start Relay Black S or 2 M or 3 L or [...]

  • Page 22

    22 099605 1 2 3 4 5 6 7 8 9 11 12 13 13 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 35 36 37 38 39 14 10 11-1 11-2 11-3 11-4 11-5 33 34 40 41 42 ILLUSTRA TED P ARTS BREAKDOWN 30,000 BTU/Hr EDI/EEI 18-1 18-2 18-3 18-4 18-5 18-6 18-7 18-8 18-9 18-10 18-11 18-12 18-13 18-14 18-15 18-16 18-17 18-18 Motor and Pump Assembly[...]

  • Page 23

    23 099605 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. P ARTS LIST 30,000 BTU/Hr EDI/EEI **Not available as an assembly, order parts separately. KEY PART PART QTY. NO. NUMBER DES[...]

  • Page 24

    24 099605 ILLUSTRA TED P ARTS BREAKDOWN 70,000 BTU/Hr EDI/EEI 18-1 18-2 18-3 18-4 18-5 18-7 18-8 18-9 18-10 18-11 18-12 18-14 18-15 18-16 18-18 18-17 18-6 18-13 Motor and Pump Assembly 1 2 4 3 5 6 7 8 10 11 12 12 14 15 16 (2) 17 20 18 19 21 22 24 25 26 27 28 29 30 31 32 34 38 37 41 13 9 33 35 36 42 43 39 40 23 44 10-6 10-3 10-2 10-4 10-5 10-7 Burne[...]

  • Page 25

    25 099605 P ARTS LIST 70,000 BTU/Hr EDI/EEI 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 PART QTY. NO. NUMBER DESCRIPTION EDI EEI 1 M51104-01 Handle 1 1 2 098511-54 Uppe[...]

  • Page 26

    26 099605 1 2 3 4 5 7 8 9 10 11 12 13 14 15 16 (2) 17 18 19 20 25 26 29 30 31 32 33 34 35 36 37 38 39 40 41 6 42 43 21 22 23 24 45 44 27 28 46 ILLUSTRA TED P ARTS BREAKDOWN 90,000 BTU/Hr EDI/EEI 13-1 13-2 13-3 13-4 13-5 13-6 13-7 13-8 13-13 13-15 13-16 13-17 13-18 13-14 Motor and Pump Assembly Burner Head Assembly 8-1 8-2 8-4 8-3 8-5 8-7 8-6 13-11 [...]

  • Page 27

    27 099605 P ARTS LIST 90,000 BTU/Hr EDI/EEI 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 PART QTY. NO. NUMBER DESCRIPTION EDI EEI 1 098511-61 Upper Shell 1 1 2 M15823-27[...]

  • Page 28

    28 099605 1 2 3 4 5 7 8 9 10 11 12 13 14 15 16 17 18 19 20 22 9 23 24 25 26 27 28 29 30 31 13 32 9 32 33 33 34 9 35 36 37 40 41 42 43 9 45 47 9 48 44 49 50 51 32 52 6 39 38 21 53 9 54 46 ILLUSTRA TED P ARTS BREAKDOWN 150,000 BTU/Hr EDI/EEI 22-2 22-3 22-4 22-5 22-6 22-7 22-8 22-9 22-11 22-12 22-13 22-14 22-15 22-16 22-17 22-18 8-3 Burner Head Assemb[...]

  • Page 29

    29 099605 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. P ARTS LIST 150,000 BTU/Hr EDI/EEI KEY PART PART QTY. NO. NUMBER DESCRIPTION EDI EEI 1 098511-58 Upper Shell 1 1 2 098068-0[...]

  • Page 30

    30 099605 90,000 150,000 KEY PART PART EDI/EEI EDI/EEI NO. NUMBER DESCRIPTION QTY. QTY. 1 HA2203 Handles 2 — HA2205 Handles — 2 2 M12345-33 Screw, #10-24 x 1 3/4" 8 8 3 M12342-3 Wheel Support Frame 1 — M12831-3 Wheel Support Frame — 1 4 NTC-3C Hex Nut, #10-24 8 8 5 097896-01 Wheel 2 2 6 M28526 Cap Nut 2 2 7 M51015-01 Axle 1 — M16801-[...]

  • Page 31

    31 099605 ACCESSORIES Purchase accessories from your local dealer. HEAVY DUTY WHEELS AND HANDLE KIT - HA1202 For heavy duty applications. Makes your heater even more portable and convenient. For 30/70,000 BTU/Hr models. AIR GAUGE KIT - HA1180 For all models. Special tool to check pump pressure. STANDARD WHEELS AND HANDLE KIT - HA1206 Makes heater e[...]

  • Page 32

    W ARRANTY AND REP AIR SER VICE POSE. IN ANY EVENT IMPLIED WARRANTIES INCLUDING THOSE OF MERCHANTABILITY AND FITNESS FOR A PAR- TICULAR PURPOSE ARE LIMITED TO THE DURATION OF THIS EXPRESS WARRANTY. Any transportation charges, costs of installation, duty, taxes or any other charges whatsoever must be borne by the user. DESA International's oblig[...]