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Desa RCLP50 Owner's Manual

Propane construction heater heater size: 50,000 btu/hr
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CONSTRUCTION
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.
!
FAILURE TO COMPLY WITH THE PRECAUTIONS AND INSTRUC-
TIONS 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
INSTRUCTIONS SHOULD USE OR SERVICE THIS HEATER.
IF YOU NEED ASSISTANCE OR HEATER INFORMATION SUCH
AS AN INSTRUCTIONS MANUAL, LABELS, ETC. CONTACT THE
MANUFACTURER.
PROPANE
HEATER
OWNER'S MANUAL
Heater Size: 50,000 BTU/Hr
IMPORTANT
GENERAL HAZARD WARNING:
®

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  • Page 1 PROPANE CONSTRUCTION HEATER OWNER’S MANUAL Heater Size: 50,000 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 INSTRUC- TIONS PROVIDED WITH THIS HEATER, CAN RESULT IN DEATH, SERIOUS BODILY INJURY AND PROPERTY LOSS OR DAMAGE FROM HAZARDS OF FIRE, EXPLOSION, BURN, ASPHYXIATION,...

  • Page 2: Table Of Contents

    CONTENTS SECTION PAGE Safety Information ................. 2 Product Identification ..............4 Unpacking ..................4 Theory of Operation ..............5 Propane Supply ................5 Installation ..................6 Ventilation ..................7 Operation ..................7 Storage ................... 9 Maintenance .................. 9 Troubleshooting ................10 Service Procedures ................
  • Page 3 SAFETY WARNINGS Continued INFORMATION Propane Gas: Propane gas is odorless. An odor-making agent is added to propane gas. The odor helps you detect a propane gas leak. However, the odor added to Continued propane gas may fade. Propane gas may be present even though no odor exists. Make certain you read and understand all warnings.

  • Page 4: Product Identification

    PRODUCT Hot Air Outlet (Front) IDENTIFICATION Shell Handle Motor Fan Guard Heater Base Piezo Ignitor Button Automatic Control Valve Inlet Button Connector Power Cord Hose /Regulator Assembly Figure 1 - 50,000 BTU/Hr Model 1. Remove all packing items applied to heater for shipment. Keep plastic cover UNPACKING caps (attached to inlet connector and hose/regulator assembly) for storage.

  • Page 5: Theory Of Operation

    THEORY OF The Fuel System: The hose/regulator assembly attaches to the propane gas supply. This provides fuel to the heater. OPERATION The Air System: The motor turns the fan. The fan pushes air into and around the combustion chamber. This air is heated and provides a stream of clean, hot air. The Ignition System: The piezo ignitor lights the burner.

  • Page 6: Installation

    INSTALLATION WARNING Review and understand the warnings in the Safety Informa- tion Section, pages 2 and 3. They are needed to safely operate this heater. Follow all local codes when using this heater. WARNING Test all gas piping and connections for leaks after installa- tion or servicing.

  • Page 7: Ventilation

    4. Open propane supply valve on propane tank(s) slowly. Note: If not opened slowly, excess-flow check valve on propane tank may stop gas flow. If this happens, close propane supply valve and open again slowly. 5. Check all connections for leaks. Apply mixture of liquid soap and water to gas joints.
  • Page 8 OPERATION 5. Open propane supply valve on propane tank(s) slowly. Note: If not opened slowly, excess-flow check valve on propane tank may stop gas flow. If this Continued happens, close propane supply valve and open again slowly. WARNING Be sure motor and fan are running before pushing in auto- matic control valve button.

  • Page 9: Storage

    STORAGE CAUTION Disconnect heater from propane supply tank(s). 1. Store propane tank(s) in safe manner. See Chapter 5 of Standard for Storage and Handling of Liquefied Petroleum Gases, ANSI/NFPA 58 and/or CAN/CGA B149.2. Follow all local codes. Always store propane tanks outdoors. 2.

  • Page 10: Troubleshooting

    TROUBLE- WARNING SHOOTING Never service heater while it is plugged in, connected to propane supply, operating, or hot. Severe burns and electrical shock can occur. OBSERVED FAULT POSSIBLE CAUSE REMEDY Fan does not turn No electrical power Check voltage to electrical out- when heater is to heater let.

  • Page 11: Service Procedures

    SERVICE WARNING PROCEDURES Never service heater while it is plugged in, connected to propane supply, operating, or hot. Severe burns and elec- trical shock can occur. Motor 1. Access ground screw through underside of heater base. Remove ground screw. Disconnect the green motor wire and Ground Screw the green power cord wire...
  • Page 12 Motor (Continued) 10. Attach fan guard to new motor with three nuts. Tighten nuts firmly. 11. Place fan onto motor shaft of new motor. IMPORTANT: When placing fan onto motor shaft, make sure part number stamped on fan is facing motor. Attach fan nut to end of motor shaft.
  • Page 13 Ignitor 1. Remove motor and fan guard from heater (see Motor, page 11, steps 1 through 5). 2. Remove black ignitor wire Piezo Ignitor from piezo ignitor. Access Bushing ignitor wire through Ignitor Wire underside of heater base (see Figure 11). Push wire Underside of up through bushing in Heater Base...

  • Page 14: Specifications

    Output Rating (BTU/Hr) 49,500 SPECIFICATIONS Fuel Propane Vapor Only Fuel Consumption Gallons/Hour Pounds/Hour Supply Pressure To Regulator Minimum (for purposes 10 psi of input adjustment) Maximum Tank Pressure or 200 psi Regulator Outlet Pressure 18" WC Manifold Pressure 16" WC Hot Air Output (CFM Approx) Motor...

  • Page 15: Accessories

    U.L. and A.G.A. listed. DESA International P.O. Box 90004 Bowling Green, KY 42102-9004 1-800-972-7879 Parts Department You may have further questions about this heater. If so, contact DESA TECHNICAL International’s Technical Service Department at 1-800-323-5190. SERVICE REPLACEMENT WARNING PARTS Use only original replacement parts. This heater must use design-specific parts.

  • Page 16: Illustrated Parts List

    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.

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