Desa 35-R - Manual (Page 4)

www.desatech.com 117296-01A 4
PROPANE GAS 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 liquid 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.
Use a 100 pound (45 kg) 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 Number Of Tanks
At Tank Location 100 lb (45 kg)
above 0° F (-18° C) 1
below 0° F (-18° C) 2
Smaller tanks can be used for limited run times
but it is recommended to use larger tanks for
optimum performance.
VENTILATION
WARNING: Provide at least
a 3 ft 2 (0.28 m 2 ) opening of
fresh, outside air while running
heater. If proper fresh, outside
air ventilation is not provided,
carbon monoxide poisoning
can occur. Provide proper
fresh, outside air ventilation
before running heater.
INSTALLATION
INSTRUCTIONS
Read these instructions care-
fully. Read and adhere to these
instructions. Do not allow any-
one who has not read these
instructions to assemble, light,
adjust or operate this heater.
Do not attempt to operate the
heater with any gas other than
that indicated on the heater
nameplate.
For the U.S. and/or Canada, the installation of this
appliance must comply with local and/or Provin-
cial codes or, in the absence of these codes, with
the (U.S.) National Fuel Gas Code, ANSI Z223.1
– Latest Edition (for natural and propane/LP gas
operation) and with the (U.S) Standard for the
Storage and Handling of Liquefied Petroleum
Gases, ANSI/NFPA 58 (for propane/LP gas opera -
tion) or with the current (Canadian) CAN/CGA
B149.1 and B149.2 installation codes.
This heater (including hose and regulator assembly
if applicable) must be inspected before each use
and at least annually by a qualified service person.
If the hose shows evidence of excessive abrasion
or wear or if the hose is cut, it must be replaced
prior to the heater being put into operation. The
replacement hose assembly shall be that specified
by the manufacturer.
Tip Over Switch
This heater incorporates a tip over switch which
automatically shuts off the burner in the event of
tipping. Ensure that this switch is in the vertical po-
sition and is secured with the screws provided.
LOCATING HEATER
Although this heater incorporates a tip over switch,
the heater and propane/LP gas supply cylinder must
be located on a hard, flat, level surface to minimize
the risk of accidental tipping. The propane/LP gas
supply cylinder should be adequately restrained to
prevent accidental tipping. DO NOT operate this
heater with the supply cylinder in any other than
the upright position.
This appliance must be installed only in locations
where the potential for physical damage to the
appliance (i.e., due to physical contact) is reduced
to a minimum.