Desa RLP155AT Manuale Utente

www.desatech.com

113855-01A

INSTALLATION

WARNING: Review and under-

stand 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.

WARNING: Test all gas piping

and connections for leaks after

installation 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 supply system (see Propane

Supply).

2. Connect POL ﬁtting on hose/regulator as-

sembly to propane tank(s). Turn POL ﬁtting

counterclockwise into threads on tank. Tighten

ﬁrmly using wrench. IMPORTANT: Position

regulator so that hose leaving the regulator is

in a horizontal position (see Figure 3, page 5).

This places the regulator vent in the proper

position to protect it from the weather.

Figure 2 - Cross Section Operational View

Air For Combustion

Air For Heating

Clean Heated
Air Out (Front)

Fan

Motor

Cool
Air In
(Back)

Combustion
Chamber

Hose/Regulator
Assembly

THEORY OF OPERATION

The Fuel System:

The hose/regulator assembly

attaches to the propane gas 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.

PROPANE SUPPLY

Propane gas and propane tank(s) are to be fur-

nished by the user.
Use this heater only with a propane vapor

withdrawal supply system. See Chapter 5 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 (9 kg) propane tank. You may need two

or more tanks or one larger tank in colder weather.

It is recommended you use a 100-pound (45 kg)

tank for longer operation. See chart below. Less

gas is vaporized at lower temperatures. Your local

propane gas dealer will help you select the proper

supply system. The minimum surrounding air tem-

perature rating for each heater is -0°F (-18°C).
Average Temp °F (°C)

No. Of Tanks

At Tank Location

100-pound (45 kg)

0°(-18°) to 40°(4°)

Below 0°(-18°)