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PROPANE CONSTRUCTION FORCED AIR HEATER
VARIABLE 30-55,000, 50-85,000 AND 75-125,000 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.
GENERAL HAZARD WARNING:
Failure to comply with the precautions and instructions
provided with this heater, can result in death, serious
bodily injury and property loss or damage from hazards
of fire, explosion, burn, asphyxiation, carbon monoxide
poisoning and/or electrical shock.
Only persons who can understand and follow the in-
structions should use or service this heater.
If you need assistance or heater information such as an in-
structions manual, labels, etc. Contact the manufacturer.
Safety Information ............................................... 2
Product Identification ........................................... 3
Unpacking ........................................................... 3
Theory of Operation ............................................ 4
Propane Supply ................................................... 4
Installation ........................................................... 4
Ventilation ............................................................ 5
Operation ............................................................. 5
Storage ................................................................ 6
OWNER'S MANUAL
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Save this manual for future reference.
For more information, visit www.desatech.com
Maintenance ........................................................ 6
Troubleshooting ................................................... 7
Service Procedures ............................................. 8
Specifications .................................................... 10
Wiring Diagram .................................................. 10
Replacement Parts .............................................11
Technical Service ...............................................11
Illustrated Parts Breakdown and Parts List ....... 12
Warranty and Repair Service ............................ 18
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Summary of Contents for Desa Air Conditioner
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Page 1: Table Of Contents
PROPANE CONSTRUCTION FORCED AIR HEATER VARIABLE 30-55,000, 50-85,000 AND 75-125,000 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. GENERAL HAZARD WARNING: Failure to comply with the precautions and instructions provided with this heater, can result in death, serious bodily injury and property loss or damage from hazards... -
Page 2: Safety Information
SAFETY INFORMATION WARNING: This product contains and/or generates chemicals known to the State of California to cause cancer or birth defects or other reproduc- tive harm. WARNING: Fire, burn, in- halation and explosion hazard. Keep solid combustibles, such as building materials, paper or cardboard, a safe distance away from the heater as recommended by the instructions. -
Page 3: Product Identification
SAFETY INFORMATION Continued 12. Keep heater at least six feet from propane tank(s). Do not point heater at propane tank(s) within 20 feet (6.1 m). 13. Keep propane tank(s) below 100° F (37.8° C). 14. Check heater for damage before each use. Do not use a damaged heater. -
Page 4: Theory Of Operation
THEORY OF OPERATION The hose/regulator assembly The Fuel System: attaches to the propane gas supply. The propane gas moves through the automatic control valve and out the nozzle. The motor turns the fan. The The Air System: fan pushes air into and around the combustion chamber. -
Page 5: Installation
INSTALLATION Continued 1. Provide propane supply system (see Propane Supply, page 4). 2. Connect fuel gas connector fitting on hose/regulator assembly to propane tank(s). Turn counterclockwise into threads on tank valve. Tighten firmly using wrench. IMPORTANT: Tighten regulator with vent pointing down. -
Page 6: Operation
OPERATION Continued 6. Press and hold in fuel valve button. Heater should ignite within a few seconds. Note: If heater fails to ignite, hose may have air in it. If so, keep fuel valve button pressed and wait 20 seconds. Release automatic control valve button and wait 20 seconds for unburned fuel to exit heater. -
Page 7: Troubleshooting
WARNING: Never service heater while it is plugged in, connected to propane supply, operating or hot. Severe burns and electrical shock can occur. OBSERVED PROBLEM Fan does not turn when heater is plugged in Heater will not ignite Heater shuts down while run- ning 113893-01B TROUBLESHOOTING... -
Page 8: Service Procedures
SERVICE PROCEDURES WARNING: Never service heater while it is plugged in, connected to propane supply, operating or hot. Severe burns and electrical shock can occur. MOTOR 1. With heater on its side, remove access panel. 2. Access ground screw through underside of heater base. - Page 9 SERVICE PROCEDURES Continued SPARK TRANSFORMER 1. Remove access panel. 2. Locate and disconnect white, black and orange wires from spark transformer. 3. Remove screw holding spark transformer to base. Remove sheet metal nut on transformer and install on new transformer. Discard spark transformer.
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Page 10: Specifications
All Models • Propane/LP Gas • Gas Supply Pressure to Regulator - Max - Bottle Pressure, Min - 5 psig (34.5 kPa) • Gas Supply Pressure Regulator Out - 28" WC (6.97 kPa) • Electrical Input - 115V, 60 Hz, 1Ø, 3a •... -
Page 11: Replacement Parts
PARTS UNDER WARRANTY Contact authorized dealers of this product. If they canʼt supply original replacement part(s), either contact your nearest Parts Central or call DESA Heating Productsʼ Technical Service Department at 1-866-672-6040. When calling DESA Heating Products, have ready: •... -
Page 12: Illustrated Parts Breakdown And Parts List
ILLUSTRATED PARTS BREAKDOWN MODELS 55-F, BLP55V, REM55PV, RLP55V AND SPC-55 www.desatech.com 113893-01B... -
Page 13: Parts List
This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 11 of this manual. MODELS 55-F, BLP55V, REM55PV, RLP55V AND SPC-55 NO. PART NO. 113878-01 Grille Assembly 115772-01 Motor Mounting Bracket 113880-01 Motor Assembly 113881-01 Fan 113882-01 Outer Cylinder, Red... - Page 14 ILLUSTRATED PARTS BREAKDOWN MODELS 85-FAC, BLP85V, REM85PV, RLP85V AND SPC-85 www.desatech.com 113893-01B...
- Page 15 This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 11 of this manual. MODELS 85-FAC, BLP85V, REM85PV, RLP85V AND SPC-85 NO. PART NO. 113918-01 Outer Cylinder Assembly, Orange 113918-02 Outer Cylinder Assembly, Red 113918-03 Outer Cylinder Assembly, Yellow 113918-04 Outer Cylinder Assembly, Black...
- Page 16 ILLUSTRATED PARTS BREAKDOWN MODELS 125-F, BLP125V, REM125PV, RLP125V AND SPC-125 www.desatech.com 113893-01B...
- Page 17 This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 11 of this manual. MODELS 125-F, BLP125V, REM125PV, RLP125V AND SPC-125 NO. PART NO. 113919-01 Grille Assembly 113860-01 Motor Assembly 114160-01 Fan 114146-01 Outer Shell Cylinder Assembly, Orange 114146-02 Outer Shell Cylinder Assembly, Red...
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Page 18: Warranty And Repair Service
LIMITED WARRANTIES FOR NEW AND FACTORY RECONDITIONED PRODUCTS DESA Heating Products warrants this heater and any parts thereof, to be free of defects in materials New Products: and workmanship for one (1) year from the date of first purchase, when operated and maintained in accordance with the manufacturer's instructions.
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