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PROPANE CONSTRUCTION FORCED AIR HEATER
OWNER’S MANUAL
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, explosio
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Propane Gas: Propane gas is odorless. An odor- SAFETY INFORMATION making agent is added to propane gas. The odor helps you detect a propane gas leak. However, the WARNING: This product odor added to propane gas can fade. Propane gas contains and/or generates may be present even though no odor exists. chemicals known to the State Make certain you read and understand all warn- of California to cause cancer or ings. Keep this manual for reference. It is your birth defects or other reproduc
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SAFETY INFORMATION PRODUCT Continued IDENTIFICATION 12. Keep heater at least six feet from propane Hot Air Outlet (Front) 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). Handle 14. Check heater for damage before each use. Do Fan not use a damaged heater. Guard 15. Check hose before each use of heater. If highly worn or cut, replace with hose specified by manufacturer before using heater. 16. Locate heater on stable an
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The Ignition System: The spark transformer and THEORY OF OPERATION spark plug lights the main burner The Fuel System: The hose/regulator assembly The Safety Control System: This system causes attaches to the propane gas supply. The propane the heater to shut down if the flame goes out. gas moves through the automatic control valve Note: Some parts are located differently on some and out the nozzle. models. The Air System: The motor turns the fan. The fan pushes air into and around the comb
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VENTILATION INSTALLATION Continued WARNING: Follow the mini- 1. Provide propane supply system (see Propane mum fresh, outside air ventila- Supply, page 4). tion requirements. If proper 2. Connect fuel gas connector fitting on fresh, outside air ventilation is hose/regulator assembly to propane tank(s). Turn counterclockwise into threads on not provided, carbon monoxide tank valve. Tighten firmly using wrench. poisoning can occur. Provide I M P O R T A N T : Tighten regulator with vent
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OPERATION MAINTENANCE Continued WARNINGS 6. Press and hold in fuel valve button. Heater • Never service heater while it should ignite within a few seconds. is plugged in, connected to Note: If heater fails to ignite, hose may have propane supply, operating or air in it. If so, keep fuel valve button pressed and wait 20 seconds. Release automatic hot. Severe burns and electri- control valve button and wait 20 seconds for cal shock can occur. unburned fuel to exit heater. Repeat step 7. •
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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 POSSIBLE CAUSE REMEDY Fan does not turn when heater 1. No electrical power to heater 1. Check voltage to electrical is plugged in outlet. If voltage is good, check heater power cord for breaks 2. Fan hitting inside of heater 2. Adjust motor/fan mount to shell keep fan from hitting inside of heater shell. Bend fa
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SERVICE PROCEDURES Motor and Fan Guard WARNING: Never service heater while it is plugged in, Screw connected to propane supply, operating or hot. Severe burns and electrical shock can occur. MOTOR 1. With heater on its side, remove access panel. Screw 2. Access ground screw through underside of heater base. Remove ground screw. Disconnect Figure 5 - Removing Motor and Fan the green motor wire and the green power cord Guard from Heater (Heater may vary wire from underside of shell (see
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SPARK PLUG SERVICE PROCEDURES 1. Remove motor, motor mount and fan guard Continued (see Motor, page 8, steps 1 through 6). SPARK TRANSFORMER 2. Remove orange spark plug wire from spark 1. Remove access panel. plug. 2. Locate and disconnect white, black and orange 3. From front of heater loosen 3/4" hex nut hold- wires from spark transformer. ing spark plug in place (see Figure 9). 3. Remove screw holding spark transformer to 4. Remove spark plug from rear head. base. Remove sheet metal nut o
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SPECIFICATIONS All Models 55,000 Btu/Hr Models • Propane/LP Gas • 30-55,000 Btu/Hr (8.8 - 16.1 kW) • Fuel Consumption • Gas Supply Pressure to Regulator - Max - Bottle Pressure, Min - 5 psig (34.5 kPa) 1.4 - 2.6 pounds/hr (0.70 - 1.28 kg/hr) • Fuel Orifice Port No. - 18 • Gas Supply Pressure Regulator Out - • Fuel Orifice Port Size - 0.0196" (0.50 mm) 28" WC (6.97 kPa) • Average Air Temp. Rise - 200° F (111° C) • Electrical Input - 115V, 60 Hz, 1Ø, 3a • Direct Spark Ignition 85,000 Btu/Hr Models
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REPLACEMENT PARTS TECHNICAL SERVICE You may have further questions about this heater. WARNING: Use only original If so, contact DESA Heating Productsʼ Technical Service Department at 1-866-672-6040. When replacement parts. This heater calling, please have your model and serial numbers must use design-specific parts. of your heater ready. Do not substitute or use generic You can also visit DESA Heating Productsʼ Techni- parts. Improper replacement cal Service web site at www.desatech.com.
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ILLUSTRATED PARTS BREAKDOWN MODELS 55-F, BLP55V, REM55PV, RLP55V AND SPC-55 5 18 7 6 17 15 10 9 16 14 13 8 1 1 14 4 12 19 3 2 1 23 21 22 20 24 25 26 27 28 32 29 33 30 36 35 31 34 12 www.desatech.com 113893-01B
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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 KEY NO. PART NO. DESCRIPTION QTY 1 113878-01 Grille Assembly 1 2 115772-01 Motor Mounting Bracket 1 3 113880-01 Motor Assembly 1 4 113881-01 Fan 1 5 113882-01 Outer Cylinder, Red 1 113882-02 Outer Cylinder, Orange 1 113882-03 Outer Cylinder, Yellow 1 113882-04 Outer Cylinder, B
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ILLUSTRATED PARTS BREAKDOWN MODELS 85-FAC, BLP85V, REM85PV, RLP85V AND SPC-85 1 31 6 32 13 35 20 9 10 7 12 2 12 5 8 14 1 1 3 4 15 16 33 25 18 36 19 17 21 24 26 27 23 34 22 28 29 30 14 www.desatech.com 113893-01B
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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 85-FAC, BLP85V, REM85PV, RLP85V AND SPC-85 KEY NO. PART NO. DESCRIPTION QTY. 1 113918-01 Outer Cylinder Assembly, Orange 1 113918-02 Outer Cylinder Assembly, Red 1 113918-03 Outer Cylinder Assembly, Yellow 1 113918-04 Outer Cylinder Assembly, Black 1 2 113881-01 Fan 1 3 113860-01 Motor Assembly 1 4 113919-01 Motor Gri
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ILLUSTRATED PARTS BREAKDOWN MODELS 125-F, BLP125V, REM125PV, RLP125V AND SPC-125 4 6 13 5 12 10 1 1 9 16 14 3 15 18 7 14 19 8 20 2 1 21 28 29 22 23 17 25 24 30 31 27 26 25 33 32 40 34 39 37 36 38 35 16 www.desatech.com 113893-01B
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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 125-F, BLP125V, REM125PV, RLP125V AND SPC-125 KEY NO. PART NO. DESCRIPTION QTY 1 113919-01 Grille Assembly 1 2 113860-01 Motor Assembly 1 3 114160-01 Fan 1 4 114146-01 Outer Shell Cylinder Assembly, Orange 1 114146-02 Outer Shell Cylinder Assembly, Red 1 114146-03 Outer Shell Cylinder Assembly, Yellow 1 114146-04 Oute
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WARRANTY AND REPAIR SERVICE KEEP THIS WARRANTY Model Serial No. Date of Purchase LIMITED WARRANTIES FOR NEW AND FACTORY RECONDITIONED PRODUCTS New Products: DESA Heating Products warrants this heater and any parts thereof, to be free of defects in materials and workmanship for one (1) year from the date of first purchase, when operated and maintained in accordance with the manufacturer's instructions. These warranties are extended only to the original retail purchaser, when proof of purchase
