Product Identification; Propane Supply; Theory Of Operation - Desa TC25 Owner's Manual

Propane construction heater
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PRODUCT IDENTIFICATION

Hose/Regulator/Fuel
Gas Connector
Assembly
Piezo Ignitor Button
Figure 1 - Product Identification
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.
101857
Top
Shell
Base
Gas Inlet Connector
THEORY OF
OPERATION
The Fuel System:
sembly attaches to the propane gas supply.
This provides fuel to the heater.
The Ignition System:
lights the burner.
The Automatic Control System:
matic control valve shuts off the heater if the
flame goes out.
NOTICE: Because of the metal
lubricant used in this product,
you may notice some smoking
upon initial start-up and shut
down. This condition is normal
and should not occur beyond the
first several (5-10) minutes of
operation. If you have questions,
please call 1-800-323-5190.
OWNER'S MANUAL

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. See Chapter 5 of
the Standard for Storage and Handling of
Liquefied Petroleum Gas, ANSI/NFPA 58.
Your local library or fire department will
have this booklet.
The amount of propane gas ready for use
from propane tanks varies. Two factors de-
cide this amount:
1.
2.
This heater is designed to operate with a
minimum 20-pound 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.
Automatic Control
Temperature(°F)
Valve Button
at Tank Location
The hose/regulator as-
The piezo ignitor
VENTILATION
The auto-
3
The amount of propane gas in tank(s)
The temperature of tank(s)
Number of tanks,
(100-pound)
40°
1
32°
1
20°
1
10°
1
1
-10°
2
-20°
2
WARNING: Provide at least
an 120-square-inch opening of
fresh, outside air before using
heater. If proper fresh, outside
air ventilation is not provided,
carbon monoxide poisoning can
occur. Provide proper fresh, out-
side air ventilation before run-
ning heater.

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