Page 2 - CONTENTS; WARNING; Carbon Monoxide Poisoning:; Some people are more affected by carbon; WARNINGS
2 100585 Safety Information ......................................................................... 2Product Identification .................................................................... 4Unpacking ...................................................................................... 4Theory...
Page 3 - Continued; Propane gas is odorless. An odor-making agent is added to propane
3 100585 2 SAFETY INFORMATION Continued ! WARNINGS Continued 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 topropane gas may fade. Propane gas may be present even though no odor exists. Make c...
Page 4 - UNPACKING; dealer where you bought heater.
4 100585 PRODUCT IDENTIFICATION Figure 1 - 50,000 BTU/Hr Model PowerCord Hose /RegulatorAssembly InletConnector Handle Shell Hot Air Outlet(Front) Fan Guard Piezo IgnitorButton AutomaticControl ValveButton UNPACKING 1. Remove all packing items applied to heater for shipment. Keep plastic cover caps ...
Page 5 - THEORY OF; The Ignition System:; PROPANE
5 100585 Air For Combustion Air For Heating THEORY OF OPERATION CombustionChamber CleanHeatedAir Out(Front) Hose/RegulatorAssembly Cool Air In(Back) The Fuel System: The hose/regulator assembly attaches to the propane gas supply. This provides fuel to the heater. The Air System: The motor turns the ...
Page 6 - INSTALLATION; Connect hose to inlet connector. Tighten firmly using a wrench.; Position regulator so that hose leaving the regulator is
6 100585 INSTALLATION Inlet Connector Hose Figure 4 - Hose and Inlet Connector ! WARNING Review and understand the warnings in the Safety Informa-tion Section, pages 2 and 3. They are needed to safelyoperate this heater. Follow all local codes when using thisheater. 3. Connect hose to inlet connecto...
Page 7 - VENTILATION; To Start Heater; into front or rear of heater.
7 100585 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 thishappens, close propane supply valve and open again slowly. 5. Check all connections for leaks. Apply mixture of liquid soap and water to gas ...
Page 8 - If not opened; OPERATION; To Stop Heater; remaining fuel in hose.; To Restart Heater; Wait five minutes after stopping heater.
8 100585 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 thishappens, close propane supply valve and open again slowly. OPERATION Continued ! WARNING Be sure motor and fan are running before pushing in ...
Page 9 - STORAGE; heater combustion chamber.; MAINTENANCE; CAUTION; • Never service heater while it is plugged in, connected; Have heater inspected yearly by a qualified service agency.
9 100585 STORAGE 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/CGAB149.2. Follow all local codes. Always store propane tanks outdoors. 2. Place plastic cover caps over brass fittings on inlet connecto...
Page 10 - SHOOTING; Fan blades bent; OBSERVED FAULT POSSIBLE CAUSE
10 100585 TROUBLE- SHOOTING Check voltage to electrical out-let. If voltage is good, checkheater power cord for breaks. Adjust motor/fan guard to keepfan from hitting inside of heatershell. Bend fan guard if neces-sary. Replace fan. See Fan, page 12. Replace motor. See Motor,page 11. Repeat installa...
Page 12 - Fan
12 100585 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 motorshaft, make sure partnumber stamped on fan isfacing motor. Attach fannut to end of motor shaft.Tighten fan nut firmly. 12. Place motor a...
Page 13 - Ignitor
13 100585 Ignitor 1. Remove motor and fan guard from heater (seeMotor, page 11, steps 1through 5). 2. Remove black ignitor wire from piezo ignitor. Accessignitor wire throughunderside of heater base(see Figure 11). Push wireup through bushing inheater shell. 3. Remove ignitor mounting screw from rea...
Page 14 - CONNECTION DIAGRAM; SPECIFICATIONS
14 100585 Black Black Green White Green Terminal Board WhiteWhite Blue Blue T Thermal Switch 86 42 75 31 Relay Red Red Gas Valve Piezo Ignitor Electrode CONNECTION DIAGRAM Blue R l White Red Red Thermal Motor (To Thermocouple) Thermo- couple Blue SPECIFICATIONS Output Rating (BTU/Hr) 49,500 Fuel Pro...
Page 15 - ACCESSORIES; Part Number; TECHNICAL
15 100585 Parts Under Warranty Contact authorized dealers of this product. If they can’t supply original replace-ment part(s), either contact your nearest authorized service center or call DESAInternational’s Technical Service Department at 1-800-323-5190.When calling DESA International, have ready ...
Page 17 - PARTS LIST
17 100585 PARTS LIST This list contains replaceable parts used in your heater. When ordering parts, follow theinstructions listed under Replacement Parts on page 15 of this manual. KEY PART NO. NO. DESCRIPTION QTY. 1 099568-01 Inner Shell (Combustion Chamber) 1 2 M11084-26 Hex Tap Screw, #10-16 x 3/...
Page 18 - NOTES
18 100585 NOTES _______________________________________________________________ _______________________________________________________________ _______________________________________________________________ _______________________________________________________________ ____________________________...
Page 20 - WARRANTY AND REPAIR SERVICE; LIMITED WARRANTY; WARRANTY SERVICE
WARRANTY AND REPAIR SERVICE LIMITED WARRANTY KEEP THIS WARRANTY For information, write: DESA International, P.O. Box 90004 Bowling Green, Kentucky 42102-9004 ATTN: Customer Service Department When writing, always include model number and serial number. 100585-01REV. D04/97 Model Serial No. Date of P...