Desa BLP375AT owner manual Propane/Lp Supply, Ventilation, Installation, At Tank, of tanks, Number

Models: BLP375AT

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PROPANE/LP SUPPLY

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PROPANE/LP SUPPLY VENTILATION INSTALLATION

PROPANE/LP SUPPLY

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

Use this heater only with a propane/LP vapor withdrawal supply system. See Chapter 5 of the Standard for Storage and Handling of Liquefied Petroleum Gas, ANSI/NFPA 58 and the Propane Instal- lation Code CAN/CGA B149.2. Your local library or fire depart- ment will have these booklets.

The amount of propane/LP gas ready for use from propane/LP tanks varies. Two factors decide this amount:

1.The amount of propane/LP gas in the tank(s)

2.The temperature of tank(s)

The chart below shows the number of 100-pound tanks needed to run this heater.

Do not operate this product with any tank smaller than 100 pounds.

Temperature (°F)

Number

At Tank

of tanks

40°

3

32°

(Use

20°

larger

tank

-10°

below

-20°

40°F)

Less gas is vaporized at lower temperatures. You may need a larger tank in colder weather. Your local propane/LP gas dealer will help you select the proper supply system. The minimum surrounding air temperature rating for each heater is -20°F.

VENTILATION

Number WARNING: Follow the minimum fresh, outside air ventilation requirements. If proper fresh, outside air ventilation is not provided, carbon monoxide poison- ing can occur. Provide proper fresh, outside air ven- tilation before running heater.

Provide at least three square feet of fresh, outside air for each 100,000 Btu/Hr of rating. This heater requires a fresh air opening of at least 11.25 square feet. Provide extra fresh air if more heaters are being used.

INSTALLATION

At Tank WARNING: Review and understand the warnings in the Safety Information section, page 2. They are needed to safely operate this heater. Follow all local codes when using this heater.

of tanks 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.

1.Provide propane/LP supply system (see Propane/LP Supply).

2.Connect POL fitting on hose/regulator assembly to propane/LP tank(s). Turn POL fitting counterclockwise into threads on tank. Tighten firmly using a wrench. IMPORTANT: Tighten regula- tor with black adjustment knob pointing down. Pointing adjust- ment knob down protects regulator from weather damage.

3.Connect hose to inlet connector. Tighten firmly using a wrench. IMPORTANT: Extra hose or piping may be used if needed. Install extra hose or piping between hose/regulator assembly and propane/LP tank. You must use the regulator supplied with the heater.

4.Open propane/LP supply valve on propane/LP tank(s) slowly. Note: If not opened slowly, excess-flow check valve on pro- pane/LP tank will stop gas flow. If this happens, you may hear a click inside the regulator assembly. To reset the excess flow check valve, close propane/LP supply valve and open again slowly.

POL Fitting

Hose

Supply Valve

VENTILATIONINSTALLATIONManual background Regulator Propane/LP Manual backgroundManual backgroundManual background

Tank

Adjustment Knob (pointing down)

Figure 3 - Regulator With Adjustment Knob Pointing Down

Hose

Inlet Connector

Figure 4 - Hose and Inlet Connector

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103018-01H

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Desa BLP375AT owner manual Propane/Lp Supply, Ventilation, Installation, At Tank, of tanks, Number