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PORTABLE
FORCED
AIR HEATER
(WITH BUILT-IN THERMOSTAT)
OWNER’S MANUAL
Heater Size: 115,000 Btu/Hr
Models: B115T, R115T, and REM115T
H.S.I. Series
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.
®
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115,000 Btu/Hr H.S.I. Series PORTABLE FORCED AIR HEATER c) All flame, including the pilot light, if any, • Use only in places free of flammable SAFETY shall be extinguished and the heater al- vapors or high dust content. INFORMATION lowed to cool, prior to fueling. • Use only the electrical voltage and fre- d)During fueling, all fuel lines and fuel- quency specified on model plate. line connections shall be inspected for • Use only a three-prong, grounded ex- WARNINGS leaks. Any leaks shall be re
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OWNER’S MANUAL PRODUCT IDENTIFICATION Hot Air Thermostat Knob Outlet Upper Shell Fan Guard Lower Shell Fuel Tank Fuel Cap Side Cover Ignition Control Power Cord Assembly (assembly on inside of side cover) Figure 1 - Portable Forced Air Heater ASSEMBLY Front Handle These models are furnished with wheels and a front handle. Some models are furnished with a rear handle also. Wheels, handle(s), and the mounting hardware are found in the Screw shipping carton. Hot Air Outlet TOOLS NEEDED Rear Handle
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115,000 Btu/Hr H.S.I. Series PORTABLE FORCED AIR HEATER combustion chamber. This air is heated and FUELS THEORY OF provides a stream of clean, hot air. OPERATION The Ignition System: The ignition con- WARNING: Use only kerosene trol assembly provides power to the ignitor. The Fuel System: The air pump forces or No. 1 fuel oil to avoid risk of fire This ignites the fuel/air mixture in the com- or explosion. Never use gasoline, air through the air line. The air is then bustion chamber. naphtha,
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OWNER’S MANUAL 3. If any debris is noted in old fuel, add 1 OPERATION STORING, or 2 quarts of clean kerosene to tank, TRANSPORTING, stir, and drain again. This will prevent WARNING: Review and un- excess debris from clogging filters dur- derstand the warnings in the OR SHIPPING ing future use. Safety Information section, page Note: If shipping, transport companies re- 4. Replace fuel cap and drain plug. Prop- 2. They are needed to safely oper- erly dispose of old and dirty fuel. Check ate this
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115,000 Btu/Hr H.S.I. Series PORTABLE FORCED AIR HEATER 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. OBSERVED FAULT POSSIBLE CAUSE REMEDY Motor does not start five seconds after heater 1. No power to heater 1. Check circuit breaker in electrical panel is plugged in 2. Thermostat setting too low 2. Turn ther
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OWNER’S MANUAL PUMP PRESSURE SERVICE ADJUSTMENT PROCEDURES Fan 1. Remove pressure gauge plug from filter end cover. WARNING: Never service Motor 2. Install accessory pressure gauge (part heater while it is plugged in, op- number HA1180). erating, or hot. Severe burns and electrical shock can occur. 3. Start heater (see Operation, page 5). Allow motor to reach full speed. Flush UPPER SHELL REMOVAL 4. Using a flat blade screwdriver, adjust pressure. Turn relief valve to right to 1. Remove screws a
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115,000 Btu/Hr H.S.I. Series PORTABLE FORCED AIR HEATER Combustion Nozzle IGNITOR SERVICE Chamber Adapter 1. Remove upper shell and fan guard (see Bracket PROCEDURES page 7). Ignitor Continued 2. Remove fan (see page 7). Air Ignitor 3. Remove 4 side cover screws with a WARNING: Never service Line Wires 5/16" nut driver. Remove side cover heater while it is plugged in, oper- Hose (see Figure 9). ating, or hot. Severe burns and electrical shock can occur. 4. Disconnect ignitor wires (yellow) from
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OWNER’S MANUAL FUEL AND AIR LINE SERVICE REPLACEMENT AND PROCEDURES PROPER ROUTING Combustion Continued 1. Remove upper shell (see page 7). Chamber Nozzle/ NOZZLE ASSEMBLY Adapter 2. Remove side cover screws using 5/16" Assembly nut driver. 1. Remove upper shell (see page 7). 3. Remove side cover. 2. Remove fan (see page 7). 4. Inspect fuel and air line hoses for cracks 3. Remove fuel and air line hoses from and/or holes. If fuel line hose is dam- nozzle assembly (see Figure 12). aged, disconnec
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115,000 Btu/Hr H.S.I. Series PORTABLE FORCED AIR HEATER IGNITION CONTROL SERVICE ASSEMBLY Blade PROCEDURES Pump Plate (Procedure for Replacing Fuse) Continued Air Intake Filter Filter End PUMP ROTOR WARNING: High Voltage Cover (Procedure if Rotor is Binding) 1. Unplug heater. 1. Remove upper shell (see page 7). Insert 2. Remove side cover screws (4) using 2. Remove filter end cover screws using Rotor 5/16" nut-driver to expose ignition con- 5/16" nut-driver. Air Output trol assembly. 3. Remove fi
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OWNER’S MANUAL WIRING DIAGRAM TECHNICAL Ignitor SERVICE Yellow You may have further questions about op- Yellow eration or troubleshooting. If so, contact Ignitor DESA International’s Technical Service Dept. at 1-800-323-5190. Black Thermostat AC Hot (L1) You can also visit DESA International’s Red Technical Service web site at Motor Black www.desatech.com. Ignitor Common Green Motor Ignition Control White Green Motor Common Blue Photocell Common Photocell Blue Photocell AC Common (L2) White Figu
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115,000 Btu/Hr H.S.I. Series PORTABLE FORCED AIR HEATER 2 ILLUSTRATED PARTS 1 7-1 BREAKDOWN 7-2 7-3 B115T 3 R115T REM115T 7-4 7-5 9 7 10 5 4 16 6 8 11 19 23 24 12 28 15 25 26 18 26 20 27 22 29 21 30 40 31 39 38 10-1 35 13 10-2 10-3 33 10-4 34 14 10-5 36 17 32 14 10-6 10-17 10-7 10-8 10-16 10-15 10-9 10-13 10-14 10-10 10-11 10-13 Motor and Pump Assembly 10-12 104193 12
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OWNER’S MANUAL This list contains replaceable parts used in your heater. When ordering parts, be sure to provide the correct PARTS LIST model and serial numbers (from the model plate), then the part number and description of the desired part. B115T R115T REM115T KEY PART KEY PART NO. NUMBER DESCRIPTION QTY. NO. NUMBER DESCRIPTION QTY. 1 098511-138 Upper Shell (Yellow) 1 15 NTC-4C Hex Lock Nut, 1/4-20 2 098511-66 Upper Shell (Black) 1 16 M51114-01 Fan Guard 1 098511-135 Upper Shell (White) 1 17 M
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115,000 Btu/Hr H.S.I. Series PORTABLE FORCED AIR HEATER PARTS AVAILABLE - NOT SHOWN PARTS LIST PART NUMBER DESCRIPTION QTY. 100621-06 Thermostat Decal 1 WHEELS AND HANDLE PARTS LIST KEY PART PART NO. NUMBER DESCRIPTION QTY. 1 HA2203 Handle 2 (if equipped) 3 2 M12345-33 Screw, #10-24 x 1 /4" (B115T) 8 (REM115T, R115T) 6 3 M12342-3 Wheel Support Frame 1 4 NTC-3C Hex Nut, #10-24 (B115T) 8 (REM115T, R115T) 6 5 097896-04 Wheel (Master and Remington) 2 097896-01 Wheel (Reddy) 2 6 M28526 Cap Nut 2 7 M5
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OWNER’S MANUAL REPLACEMENT ACCESSORIES PARTS Purchase accessories and parts from your nearest dealer or service center. If they can 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. Contact au
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WARRANTY AND REPAIR SERVICE KEEP THIS WARRANTY Model No. Serial No. Date of Purchase (To be filled in by purchaser) LIMITED WARRANTY DESA International warrants this product and any parts thereof, to be free from defects in materials and workmanship for one (1) year from the date of first purchase when operated and maintained in accordance with instructions. This warranty is extended only to the original retail purchaser, when proof of purchase is provided. This warranty covers only the cost of pa
