Desa RM115 Series Owner's Manual
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Desa RM115 Series Owner's Manual

Portable forced air heaters
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PORTABLE
FORCED
AIR HEATERS
OWNER'S MANUAL
RM115 - 115,000 Btu/Hr
and RM155 - 155,000 Btu/Hr
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.
H.S.I. Series
®

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Summary of Contents for Desa RM115 Series

  • Page 1 PORTABLE FORCED AIR HEATERS OWNER’S MANUAL RM115 - 115,000 Btu/Hr and RM155 - 155,000 Btu/Hr 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. ®...

  • Page 2: Safety Information

    115,000 and 155,000 Btu/Hr H.S.I. Series PORTABLE FORCED AIR HEATERS SAFETY d) During fueling, all fuel lines and fuel- • Use only a three-prong, grounded line connections shall be inspected for extension cord. INFORMATION leaks. Any leaks shall be repaired prior •...
  • Page 3 OWNER’S MANUAL ASSEMBLY 2. Place cap nuts on axle ends. Gently tap with hammer to secure. 3. Place heater on wheel support frame. These models are furnished with wheels and Make sure air inlet end (rear) of heater a front handle. Some models are furnished is over wheels.

  • Page 4: Product Identification

    115,000 and 155,000 Btu/Hr H.S.I. Series PORTABLE FORCED AIR HEATERS PRODUCT IDENTIFICATION FUELS Hot Air WARNING: Use only kerosene Outlet or No. 1 fuel oil to avoid risk of fire Upper Shell or explosion. Never use gaso- line, naphtha, paint thinners, al- Fan Guard cohol, or other highly flammable fuels.

  • Page 5: Operation

    OWNER’S MANUAL OPERATION STORING, 5. Plug extension cord into standard 120 volt/60 hertz, three-hole, grounded TRANSPORTING, outlet. Note: Ignitor will preheat for WARNING: Review and un- five seconds then heater will start. OR SHIPPING derstand the warnings in the Safety Information section, page TO STOP HEATER Note: If shipping, transport companies re- 2.

  • Page 6: Troubleshooting

    PORTABLE FORCED AIR HEATERS 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...

  • Page 7: Service Procedures

    OWNER’S MANUAL SERVICE PUMP PRESSURE ADJUSTMENT PROCEDURES Remove pressure gauge plug from filter end cover (see Figure 7). WARNING: Never service Motor heater while it is plugged in, op- Install accessory pressure gauge (part erating, or hot. Severe burns and number HA1180).
  • Page 8 115,000 and 155,000 Btu/Hr H.S.I. Series PORTABLE FORCED AIR HEATERS SERVICE IGNITOR CAUTION: Do not bend or 1. Remove upper shell and fan guard (see PROCEDURES strike ignitor element. Handle with page 7). care. Continued 2. Remove fan (see page 7). Carefully remove replacement ignitor 3.
  • Page 9 OWNER’S MANUAL SERVICE FUEL AND AIR LINE Combustion Chamber REPLACEMENT AND PROCEDURES PROPER ROUTING Continued Burner Remove upper shell (see page 7). Strap NOZZLE ASSEMBLY Remove side cover screws using 5/16" nut driver. Photocell 1. Remove upper shell (see page 7). Bracket Remove side cover.
  • Page 10 115,000 and 155,000 Btu/Hr H.S.I. Series PORTABLE FORCED AIR HEATERS SERVICE IGNITION CONTROL Blade Pump Plate ASSEMBLY PROCEDURES Air Intake Filter (Procedure for Replacing Fuse) Continued Filter End Cover WARNING: High Voltage PUMP ROTOR (Procedure if Rotor is Binding) Insert Unplug heater Rotor 1.

  • Page 11: Wiring Diagram

    OWNER’S MANUAL WIRING DIAGRAM Ignitor Yellow Yellow Ignitor Motor Main Black 120V (L1) AC Neutral (L2) Green Motor Green Ignition Control White White Motor Return Ignitor Blue Photocell Photocell Blue Photocell Figure 21 - Wiring Diagram SPECIFICATIONS Output Rating (Btu/Hr) 115,000 155,000 Fuel...

  • Page 12: Illustrated Parts Breakdown

    115,000 and 155,000 Btu/Hr H.S.I. Series PORTABLE FORCED AIR HEATERS ILLUSTRATED PARTS BREAKDOWN RM115 RM155 10-1 10-2 10-3 10-4 10-5 10-6 10-17 10-7 10-16 10-8 10-15 10-9 10-13 10-10 10-14 Motor and Pump Assembly 10-13 10-12 10-11 104362...

  • Page 13: Parts List

    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. RM115 RM155 PART...
  • Page 14 115,000 and 155,000 Btu/Hr H.S.I. Series PORTABLE FORCED AIR HEATERS PARTS LIST PARTS AVAILABLE - NOT SHOWN PART NUMBER DESCRIPTION QTY. 098493-01 General Information Decal WHEELS AND HANDLE PARTS LIST KEY PART PART NO. NUMBER DESCRIPTION QTY. HA2203 Handle (115 Btu) 2 (if equipped) HA2204 Handle (155 Btu)

  • 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 service manual may be purchased from the address This warranty does not cover defects resulting from misuse, abuse, listed below. Send a check for $5.00 payable to DESA Interna- negligence, accidents, lack of proper maintenance, normal wear, tional.

This manual is also suitable for:

Rm155 seriesRem155a

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