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5

100170

THEORY OF

OPERATION

The Fuel System:  

The hose/regulator assembly attaches to the propane gas

supply. The propane gas moves through the solenoid valve and out the nozzle.

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 burner control sends voltage to the ignitor. The

ignitor ignites the fuel and air mixture.

The Safety Control System:

  This system causes the heater to shut down if the

flame goes out.

Motor

Nozzle

Ignitor

Power
Cord

PROPANE

SUPPLY

Propane gas and propane tank(s) are to be furnished by the user.

Use this heater only with a propane vapor withdrawal supply system.
The amount of propane gas ready for use from propane tanks varies. Two factors
decide this amount:
1. The amount of propane gas in tank(s)
2. The temperature of tank(s)
The chart below shows the number of 45 kg (100 pound) tanks needed to run this
heater. Do not operate this product with any tank smaller than 45 kg (100 pounds).

Clean
Heated
Air Out
(Front)

Combustion
Chamber

Cool
Air In
(Back)

Solenoid
Valve

High Limit

Fan

Figure 2 - Cross Section Operational View

Burner Control

Air For Combustion 
And Heating

Fuel

Hose/Regulator Assembly

Temperature (°C) (°F) At Tank

Less gas is vaporized at lower temperatures. You may need a larger tank in colder
weather. Your local propane gas dealer will help you select the proper supply system.

0°C

-6.2°C

-12°C

-17.7°C -23.3°C -28.9°C

(32°F)

(20°F)

(10°F)

(0°F)

(-10°F)

(-20°F)

Number of tanks

2

2

3

3

 (Use larger tank)

Summary of Contents for BCLP155

Page 1: ...OPANE CONSTRUCTION HEATERS 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 Models RCLP155 and BCLP155 ...

Page 2: ...hooting 8 Maintenance 8 Storage 8 Service Procedures 9 Wiring Diagram 10 Specifications 10 Accessories 11 Technical Service 11 Service Publications 11 Replacement Parts 11 Warranty and Repair Service Back Cover SECTION PAGE CONTENTS FOR YOUR SAFETY Do not use this heater in a space where gasoline or other liquids having flammable vapors are stored or used ...

Page 3: ...ot use a damaged heater Use only propane gas set up for vapor withdrawal Keep propane tank s below 38 C 100 F Use only in well vented areas Provide at least a 0 28 m2 three square foot opening of fresh outside air for each 105 500 kJ hr 100 000 BTU Hr of rating Use only in places free of flammable vapors or high dust content Keep heater away from strong drafts water spray rain or dripping water Us...

Page 4: ... Start Switch Figure 1 RCLP155 and BCLP155 Models UNPACKING 1 Remove all packing items applied to heater for shipment Keep plastic cover caps attached to inlet connector and hose regulator assembly for storage 2 Remove all items from carton 3 Check all items for shipping damage If heater is damaged promptly inform dealer where you bought heater ...

Page 5: ...r only with a propane vapor withdrawal supply system The amount of propane gas ready for use from propane tanks varies Two factors decide this amount 1 The amount of propane gas in tank s 2 The temperature of tank s The chart below shows the number of 45 kg 100 pound tanks needed to run this heater Do not operate this product with any tank smaller than 45 kg 100 pounds Clean Heated Air Out Front C...

Page 6: ...ation Section page 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 installing or servicing Never use an open flame to check for a leak Apply a mixture of liquid soap and water to all joints Bubbles forming show a leak Correct all leaks at once Figure 3 Regulator With Vent Pointing Down 3 Conne...

Page 7: ...l codes when using this heater Extension Cord Size Requirement Up to 15m 50 feet long use 18 AWG rated cord 15 5 to 30 5 51 to 100 feet long use 16 AWG rated cord 31 to 61 M 101 to 200 feet long use 14 AWG rated cord 4 Plug extension cord into a 120 volt 60 hertz three hole grounded outlet 5 Open propane supply valve on propane tank s slowly Note If not opened slowly excess flow check valve on pro...

Page 8: ... CAUTION Disconnect heater from propane supply tank s STORAGE TROUBLE SHOOTING If heater does not start or restart Check manual valves if any and supply valves on propane tank Make sure they are open Check fuel level in propane tank s If fuel level is too low contact local propane gas company If heater still does not start or restart contact your local service center MAINTENANCE WARNING Never serv...

Page 9: ... fan pitch 1 Remove upper shell by removing the screws along each side of heater using 7 8 mm 5 16 nut driver see Figure 5 These screws attach upper and lower shells together 2 Lift or slide upper shell off 3 Remove fan guard 4 Use 3 17 mm 1 8 Allen wrench to loosen setscrews which hold fan to motor shaft see Figure 7 5 Slip fan off motor shaft 6 Clean fan using soft cloth moistened with kerosene ...

Page 10: ...input adjustment 69 kPa 10 psi Maximum Tank Pressure Regulator Outlet Pressure Factory Preset 31 75 12 5 WC Manifold Pressure 9 8 po 9 8 WC Motor 3 400 tr min 1 8 CV 3 400 RPM 1 8 HP Electric Input 120 V 60 Hz Amperage 2 2 Ignitor Gap 3 3 to 3 81 mm 13 15 in Weight Heater 11 2 kg 24 lbs Shipping 15 8 kg 35 lbs Size L x W x H 95 cm x 36 cm x 53 cm 371 2 x 141 2 x 21 SPECIFICATIONS Motor Burner Cont...

Page 11: ...r address model number of your heater how heater was malfunctioning purchase date In most cases we will ask you to return the defective part to the factory Parts Not Under Warranty Contact authorized dealers of this product If they cannot supply original replace ment part s call DESA Industries Parts Department at 905 826 8010 When calling DESA Industries have ready model number of your heater the...

Page 12: ...o not allow the exclusion or limitation of incidental or consequential damages These limitations or exclusions may not apply to you This Limited Warranty gives you specific legal rights and you may also have other rights which vary from province to province To be filled in by purchaser WARRANTY SERVICE Should your heater require service return it to your nearest authorized service center Proof of ...

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