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PROPANE
CONSTRUCTION
HEATERS
OWNER’S MANUAL
Heater Size: 375,000 Btu/Hr - A Series
Models: BLP375A, RLP375A
IMPORTANT: Read and understand this manual before assembling, starting, or servic-
ing 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, EXPLOS
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375,000 BTU/HR - A SERIES PROPANE CONSTRUCTION HEATER Propane Gas: Propane gas is odorless. • Keep appliance area clear and free from SAFETY An odor-making agent is added to propane combustible materials, gasoline, paint INFORMATION gas. The odor helps you detect a propane gas thinner, and other flammable vapors and leak. However, the odor added to propane liquids. Dust is combustible. Do not use gas can fade. Propane gas may be present heater in areas with high dust content. WARNINGS even thou
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OWNER’S MANUAL PRODUCT UNPACKING IDENTIFICATION 1. Remove all packing items applied to heater for shipment. Keep plastic cover Hot Air Outlet (Front) caps (attached to inlet connector and hose/regulator assembly) for storage. 2. Remove all items from carton. 3. Check all items for shipping damage. Handle If heater is damaged, promptly inform dealer where you bought heater. Fan Guard Outer Shell On/Off Switch Inlet Connector Power Cord Hose /Regulator Assembly BLP& VLP375 LP-PFA/PV 008C Figure 1
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375,000 BTU/HR - A SERIES PROPANE CONSTRUCTION HEATER THEORY OF OPERATION PROPANE SUPPLY The Ignition System: The direct spark The Fuel System: The hose/regulator ignitor (DSI) sends voltage to the ignitor. assembly attaches to the propane gas sup- Propane gas and propane tank(s) are to be The ignitor ignites the fuel and air mixture. ply. The propane gas moves through the furnished by the user. solenoid valve and out the nozzle. The Safety Control System: This sys- Use this heater only with
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S A E R C N 5 10 15 20 I OWNER’S MANUAL 4. Open propane supply valve on propane INSTALLATION OPERATION tank(s) slowly. Note: If not opened slowly, excess-flow check valve on pro- WARNING: Review and un- pane tank will stop gas flow. If this hap- WARNING: Review and un- derstand the warnings in the pens, you may hear a click inside the derstand the warnings in the Safety Information section, page regulator assembly. To reset the excess Safety Information section, page 2. They are needed to safe
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375,000 BTU/HR - A SERIES PROPANE CONSTRUCTION HEATER OPERATION STORAGE MAINTENANCE Continued WARNING: Never service CAUTION: Disconnect heater TO STOP HEATER heater while it is plugged in, con- from propane supply tank(s). nected to propane supply, oper- 1. Tightly close propane supply valve on ating, or hot. Severe burns and propane tank(s). 1. Store propane tank(s) in safe manner. electrical shock can occur. 2. Wait a few seconds. Heater will burn See Chapter 5 of Standard for Storage gas l
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OWNER’S MANUAL 5. Reach into rear of heater shell. Care- 12. Slip fan off motor shaft. SERVICE fully pull motor wires through hole in 13. Clean fan using soft cloth moistened PROCEDURE bottom of shell. Note: Pull wires with kerosene or solvent. through hole one at a time. 14. Dry fan thoroughly. 6. Remove nuts and mounting bolts hold- 15. Replace fan on motor shaft. Make sure WARNING: Never service ing motor mount to shell. Use 3/8" nut- setscrew is touching back of flat sur- heater while it is
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375,000 BTU/HR - A SERIES PROPANE CONSTRUCTION HEATER WIRING DIAGRAMS Solenoid Green Motor Valve Ignitor Orange Power Cord Green Orange White White Blue White Black DSI Black Black Control Black On/Off Blue Blue Blue Blue Switch T Terminal Board Connector Connector Thermal Green Switch Figure 11 - Wiring Diagram Ignitor Black Orange Orange Solenoid Valve Blue Black Direct Spark White Ignitor Green Blue Thermal Switch Blue White Centrifugal Switch Black White Motor Green Green Lin
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OWNER’S MANUAL SPECIFICATIONS REPLACEMENT PARTS Output Rating (Btu/Hr) 225,000 to 375,000 Fuel Propane Vapor Only WARNING: Use only original Fuel Consumption replacement parts. This heater Gallons/Hour 2.5 Minimum/4.0 Maximum must use design-specific parts. Pounds/Hour 10.4 Minimum/17.4 Maximum Do not substitute or use generic Supply Pressure To Regulator parts. Improper replacement Minimum (for purposes of parts could cause serious or fa- input adjustment) 25 psig tal injuries. This will al
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375,000 BTU/HR - A SERIES PROPANE CONSTRUCTION HEATER ILLUSTRATED PARTS 2 BREAKDOWN BLP375A RLP375A 21 5 6 1 27 8 4 9 11 18 3 10 28 25 17 24 22 26 23 16 19 12 14 15 13 20 7 Note: Screws are standard hardware items 100416 10
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OWNER’S MANUAL This list contains replaceable parts used in your heater. When ordering parts, follow the instructions PARTS LIST listed under Replacement Parts on page 9 of this manual. BLP375A RLP375A KEY PART NO. NUMBER DESCRIPTION QTY. 1 100409-01 Outer Shell Assembly (BLP375A) 1 100409-06 Outer Shell Assembly (RLP375A) 1 2 097847-01 Combustion Chamber Assembly 1 3 097849-01 Burner Assembly 1 4 097805-01 Ignitor 1 5 097918-01 Cleat 2 6 097917-01 Handle 1 7 097806-02 Ignitor Cable 1 8 097811-0
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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 operating c
