www.desatech.com
112396-01C
4
Figure 2 - Connecting Heater to Propane
Tank
Propane
Tank
Propane Supply
Valve
Regulator
Hose
POL
Fitting
Inlet
Connector
Hose
Figure 3 - Hose and Inlet Connector,
Automatic Control Valve Button and
Piezo Ignitor Button Locations
Piezo
Ignitor
Automatic Control
Valve Button
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 lb (9 kg) tank. You may need two or more tanks
or one larger tank in colder weather. Use a 100 lb
(45 kg) tank for longer operation or in very cold
weather. Less gas is vaporized at lower tempera
-
tures. Your local propane gas dealer will help you
select the proper supply system.
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.
INSTALLATION
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. Wrench tighten the fuel connector nut into the
propane tank valve (see Figure 2). Turn fuel
connector nut counterclockwise to tighten.
Threads are left-handed.
2. Connect hose to inlet connector (see Figure
3). Tighten firmly using a wrench.
3. Open propane supply valve on propane tank(s)
slowly.
Note:
if not opened slowly, excess-flow
check valve on propane tank may stop gas flow.
If this happens, you may hear a click inside the
regulator assembly, this is the check valve clos-
ing. To reset the excess-flow check valve, close
propane supply valve and open it again slowly.
4. Check all connections for leaks. Apply mixture
of liquid soap and water to gas joints. Bubbles
forming show a leak that must be corrected.
5. Close propane supply valve.
OPERATION
WARNING: Review and un-
derstand the warnings in the
Safety Information
section, page
2. They are needed to safely op-
erate this heater. Follow all local
codes when using this heater.
TO START HEATER
1. Follow all installation, ventilation, and safety
information.
2. Locate heater on stable and level surface. Make
sure strong drafts do not blow on heater.
3. Open propane supply valve on propane tank(s)
slowly.
4. Turn the heater regulator knob clockwise to
the “HI” position.
5. Push in and hold automatic control valve button
(see Figure 3). Push and release piezo ignitor
button. Keep pushing piezo ignitor button until
the burner lights. Hold control knob down
