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Desa H.S.I. Series Owner's Manual

200,000 btu/hr portable forced air heater with built-in thermostat
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PORTABLE FORCED
AIR HEATER
(WITH BUILT-IN THERMOSTAT)
OWNER'S MANUAL
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.

TABLE OF CONTENTS

SAFETY INFORMATION ............................................. 2
UNPACKING ................................................................ 2
PRODUCT IDENTIFICATION ...................................... 3
ASSEMBLY .................................................................. 3
FUELS ......................................................................... 4
VENTILATION .............................................................. 4
THEORY OF OPERATION .......................................... 4
OPERATION ................................................................ 4
TROUBLESHOOTING ................................................. 6
Fill In For Your Records
Model No. ___________________
(Located on side panel)
Serial No. ___________________
(Located on fuel tank)
SERVICE PROCEDURES ........................................... 7
WIRING DIAGRAM .................................................... 11
SPECIFICATIONS ..................................................... 11
ILLUSTRATED PARTS BREAKDOWN ..................... 12
PARTS LIST ............................................................... 13
REPLACEMENT PARTS ........................................... 15
TECHNICAL SERVICE .............................................. 15
ACCESSORIES ......................................................... 15
WARRANTY AND REPAIR SERVICE ....................... 16
®
Heater Size:
200,000 Btu/Hr
H.S.I. Series

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Summary of Contents for Desa H.S.I. Series

  • Page 1: Table Of Contents

    PORTABLE FORCED Heater Size: AIR HEATER 200,000 Btu/Hr H.S.I. Series (WITH BUILT-IN THERMOSTAT) OWNER’S MANUAL 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.

  • Page 2: Safety Information

    • SAFETY INFORMATION • UNPACKING SAFETY d) During fueling, all fuel lines and fuel- • Use only a three-prong, grounded exten- line connections shall be inspected for sion cord. INFORMATION leaks. Any leaks shall be repaired prior • Minimum heater clearances from com- to returning the heater to service.

  • Page 3: Product Identification

    • PRODUCT IDENTIFICATION • ASSEMBLY PRODUCT IDENTIFICATION ASSEMBLY These models are furnished with wheels and Upper Shell Fan Guard Hot Air a rear handle. Some models are furnished Outlet with a front handle also. Wheels, handle(s), and the mounting hardware are found in the shipping carton.

  • Page 4: Fuels

    • FUELS • VENTILATION • THEORY OF OPERATION • OPERATION FUELS THEORY OF OPERATION The Fuel System: The air pump forces air The Ignition System: The ignition control WARNING: Use only kerosene through the air line. The air is then pushed assembly provides power to the ignitor.

  • Page 5: Operation With Portable Generator

    • OPERATION • OPERATION WITH PORTABLE GENERATOR • PREVENTATIVE MAINTENANCE SCHEDULE Ground Lug OPERATION OPERATION WITH PORTABLE Continued GENERATOR TO STOP HEATER Copper or Brass Unplug extension cord from outlet. Grounding WARNING: Before operating Point TO RESET HEATER heater or any appliance from a portable generator, verify that Unplug extension cord from outlet and generator has been properly con-...

  • Page 6: Troubleshooting

    • TROUBLESHOOTING TROUBLESHOOTING WARNING: Never service heater while it is plugged in, operating, or hot. Severe burns and electrical shock can occur. Note: For additional help, visit DESA International’s technical service web site at www.desatech.com. FAULT CONDITION POSSIBLE CAUSE REMEDY Motor does not start five seconds after heater 1.

  • Page 7: Service Procedures

    • SERVICE PROCEDURES SERVICE PUMP PRESSURE ADJUSTMENT PROCEDURES Remove pressure gauge plug from filter end cover (see Figure 8). WARNING: Never service Motor Install accessory pressure gauge (part heater while it is plugged in, op- number HA1180). erating, or hot. Severe burns and Start heater (see Operation, pages 4 and electrical shock can occur.
  • Page 8 • SERVICE PROCEDURES SERVICE Bushing, Lower Fuel Line, PROCEDURES and Fuel Filter Continued FUEL FILTER Remove side cover screws using 5/16" nut-driver. Remove side cover. Pull lower fuel line off the fuel valve fitting. Carefully pry bushing, lower fuel line, and fuel filter out of fuel tank. Wash fuel filter with clean fuel and replace in tank.
  • Page 9 • SERVICE PROCEDURES Combustion Nozzle SERVICE Place hex-shaped aluminum nozzle Chamber Adapter adapter into vise (do not overtighten). PROCEDURES Bracket Carefully remove nozzle from nozzle Continued adapter using 5/8" socket wrench (see Ignitor Figure 15). IGNITOR Ignitor 6. Blow compressed air through face of Line Wires Remove upper shell and fan guard (see...
  • Page 10 • SERVICE PROCEDURES SERVICE IGNITION CONTROL Blade ASSEMBLY Pump PROCEDURES Plate (Procedure for Replacing Fuse) Filter Intake Continued Filter Cover WARNING: High Voltage! PUMP ROTOR (Procedure if Rotor is Binding) Unplug heater Remove upper shell (see page 7). Insert Remove side cover screws (4) using Remove filter end cover screws using Rotor 5/16"...

  • Page 11: Wiring Diagram

    • WIRING DIAGRAM • SPECIFICATIONS • STORING, TRANSPORTING, OR SHIPPING WIRING DIAGRAM STORING, TRANSPORTING, Blue Photocell OR SHIPPING Photocell Blue Photocell Note: If shipping, transport companies re- Ignitor quire fuel tanks to be empty. White Solenoid Motor Return Valve Drain fuel tank. White Note: This model has a drain plug on White...

  • Page 12: Illustrated Parts Breakdown

    • ILLUSTRATED PARTS BREAKDOWN ILLUSTRATED PARTS BREAKDOWN 200,000 Btu/Hr 7-10 Nozzle Assembly 7-11 10-1 10-2 10-3 10-5 10-4 10-6 10-17 10-7 39-1 10-8 39-4 10-16 39-6 39-5 10-15 10-9 10-18 10-14 10-10 39-7 10-13 39-4 39-2 10-11 Motor and Pump Assembly 10-12 10-19 39-3...

  • Page 13: Parts List

    • PARTS LIST This list contains replaceable parts used in your heater. When ordering parts, be sure to provide the PARTS LIST correct model and serial number (from the model plate), then the part number and description of the desired part. 200,000 Btu/Hr PART PART...
  • Page 14 • PARTS LIST PARTS LIST Continued PARTS AVAILABLE - NOT SHOWN PART NUMBER DESCRIPTION QTY. 103814-01 Wire Tie 100621-06 Thermostat Decal WHEELS AND HANDLE PARTS LIST KEY PART PART NUMBER DESCRIPTION QTY. HA2204 Handles M12345-33 Screw, #10-24 x 1 " M12831-3 Wheel Support Frame NTC-3C...

  • Page 15: Replacement Parts

    Note: Use only original replacement parts. not supply these accessories or parts, either This will protect your warranty coverage for contact your nearest Parts Central or DESA parts replaced under warranty. International for referral information. Parts Centrals are listed in the Authorized Service PARTS UNDER WARRANTY Center booklet supplied with heater.

  • Page 16: Warranty And Repair Service

    A defect may be caused by faulty materials or from the date of first purchase when operated and maintained in workmanship. If so, DESA International will repair or replace the heater accordance with instructions. This warranty is extended only to the without charge.

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