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PROPANE CONSTRUCTION
TM HEATER
OWNER’S MANUAL
For more information, visit www.desatech.com For more information, visit www.desatech.com
LP155AT Models
150,000 Btu/Hr with Built-in Thermostat
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,
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SAFETY INFORMATION 2 • Install and use heater with care. Follow all local ordinances and codes. SAFETY INFORMATION In the absence of local ordinances and codes, refer to the Standard for Storage and Handling of Liquefied Petroleum Gas, ANSI/NFPA WARNINGS 58 and the Propane Gas Installation Code, CAN/CGA B149.2. This instructs on the safe storage and handling of propane gases. • Use only the electrical voltage and frequency specified on model WARNING: FIRE, BURN, INHALATION, AND EX- plate. The e
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PRODUCT IDENTIFICATION 3 3 UNPACKING THEORY OF OPERATION PRODUCT IDENTIFICATION UNPACKING 1. Remove all packing items applied to heater for shipment. Keep Hot Air plastic cover caps (attached to inlet connector and hose/regu- Outlet Upper Shell lator assembly) for storage. (Front) Handle 2. Remove all items from carton. 3. Check all items for shipping damage. If heater is damaged, promptly inform dealer where you bought heater. Fan Guard THEORY OF OPERATION Lower Shell The Fuel System: The hose
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PROPANE SUPPLY 4 INSTALLATION PROPANE SUPPLY Propane gas and propane tank(s) are to be furnished by the user. 3. Connect hose to inlet connector. Tighten firmly using a wrench. IMPORTANT: Extra hose or piping may be used if needed. Use this heater only with a propane vapor withdrawal supply Install extra hose or piping between hose/regulator assembly system. See Chapter 5 of the Standard for Storage and Handling of and propane tank. You must use the regulator supplied with Liquefied Petroleum Ga
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VENTILATION 5 OPERATION 5 STORAGE MAINTENANCE TO STOP HEATER VENTILATION 1. Tightly close propane supply valve on propane tank(s). 2. Wait a few seconds. Heater will burn gas left in supply hoses. WARNING: Follow the minimum fresh, outside air ventilation requirements. If proper fresh, outside air 3. Turn on/off switch to the OFF position. ventilation is not provided, carbon monoxide poison- 4. Unplug heater. ing can occur. Provide proper fresh, outside air ven- tilation before running heater.
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SERVICE PROCEDURES 6 SERVICE PROCEDURES Motor Fan WARNING: Never service heater while it is plugged in, connected to propane supply, operating, or hot. Severe burns and electrical shock can occur. UPPER SHELL REMOVAL 1. Remove screws along each side of heater using 5/16" nut-driver. These screws attach upper and lower shells together. 2. Lift or slide upper shell off. 3. Remove fan guard. FAN IMPORTANT: Remove fan from motor shaft before removing motor from heater. The weight of the motor resti
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SPECIFICATIONS 7 WIRING DIAGRAMS 7 SPECIFICATIONS WIRING DIAGRAMS Input Rating (Btu/Hr) 150,000 Fuel Propane Vapor Only Electrical Ladder Diagram Fuel Consumption Black Green White Gallons/Hour 1.6 Ignitor Pounds/Hour 7.0 Supply Pressure To Regulator Blue Solenoid Minimum (for purposes Valve Orange of input adjustment) 10 psi Maximum Tank Pressure Position of Automatic Leads May Ignition Regulator Outlet Pressure Vary System (Factory Preset) 12.5" WC G V VR ACR AC Manifold Pressure 9.8" W
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ILLUSTRATED PARTS BREAKDOWN LP155AT Models 8 ILLUSTRATED 31 PARTS 2 BREAKDOWN LP155AT MODELS 1 3 24 5 6 9 8 4 32 7 23 11 44 25 10 45 37 34 26 33 43 38 21 20 22 12 6 16 20 47 29 19 42 30 7 35 40 36 15 28 20 39 17 46 18 14 13 41 27 8 Note: Screws are standard hardware items For more information, visit www.desatech.com For more information, visit www.desatech.com 103014
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PARTS LIST 9 LP155AT Models 9 PARTS LIST LP155AT MODELS This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 10 of this manual. KEY PART KEY PART NO. NUMBER DESCRIPTION QTY. NO. NUMBER DESCRIPTION QTY. 1 098511-116 Upper Shell (Replacement Part 28 098226-01 On/Off Switch 1 Will Be Black) 1 29 097657-03 Built-in Thermostat 1 2 M15823-27 Screw, #10-16 x 1/2" 8 30 104905-01 Thermostat Knob 1 3 098512-35 Combust
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ACCESSORIES 10 TECHNICAL SERVICE REPLACEMENT PARTS ACCESSORIES REPLACEMENT PARTS Purchase accessories and parts from your nearest dealer or service WARNING: Use only original replacement parts. center. If your dealer or service center can not supply an accessory This heater must use design-specific parts. Do not or part, either contact your nearest Parts Central (listed in the substitute or use generic parts. Improper replace- separate Authorized Service Center booklet) or call DESA ment parts c
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NOTES 11 11 NOTES _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ __
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12 WARRANTY AND REPAIR SERVICE KEEP THIS WARRANTY 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. This warranty covers only the cost of parts and labor required to restore the product to proper operatin
