Desa BLP155AT owner manual Theory, Operation, Supply

Page 5

THEORY OF

The Fuel System: The hose/regulator assembly attaches to the propane gas

 

OPERATION

supply. This provides fuel to the heater.

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.

The Automatic Control System: This system causes the heater to shut down if the flame goes out.

Combustion

Fan

Chamber

 

Motor

Clean Heated

Air Out (Front)

Cool Air In (Back)

 

 

Hose/Regulator

 

 

Assembly

 

Air For Combustion

Air For Heating

 

Figure 2 - Cross Section Operational View

PROPANE

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

Use this heater only with a propane vapor withdrawal supply system. See Chapter 5

SUPPLY

of the Standard for Storage and Handling of Liquefied Petroleum Gas, ANSI/NFPA

 

58 and or CAN/CGA B149.2. Your local library or fire department will have this

 

booklet.

 

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)

This heater is designed to operate with a minimum 20-pound propane tank. You may need two or more tanks or one larger tank in colder weather. Use a 100-pound tank for longer operation or in very cold weather. Less gas is vaporized at lower temperatures. Your local propane gas dealer will help you select the proper supply system. The minimum surrounding air temperature rating for each heater is -20°F (-29°C).

Average Temperature (°F)

40°

32°

20°

10°

0°

-10°

-20°

At Tank Location

Number Of Tanks

 

 

 

 

 

 

 

(100-pound)

1

1

1

1

1

2

2

5

100585

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Contents Propane Construction Heater Contents Safety Information Safety Information 50,000 BTU/Hr Model UnpackingSupply TheoryOperation Regulator Position InstallationTo Start Heater Ventilation OperationTo Restart Heater To Stop HeaterDisconnect heater from propane supply tanks Storage MaintenanceTROUBLE- Shooting Observed Fault Possible Cause RemedyMotor Service ProceduresMotor FanIgnitor Removing Ignitor Wire from Piezo IgnitorSpecifications Wiring Diagrams Technical Service Replacement Parts AccessoriesParts Under Warranty Parts Not Under WarrantyIllustrated Parts Breakdown Description QTY Parts List100585 100585 Keep this Warranty Limited Warranty Warranty and Repair Service