Desa CANADIAN PROPANE CONSTRUCTION CONVECTION HEATER - Manual (Page 4)

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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 with-
drawal supply system. See Chapter 5 of the Stan-
dard for Storage and Handling of Liquefied Pe-
troleum 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 °F (°C) Number of tanks,
at Tank Location 100 pound (45 kg)
above 0°(-18°) 1
below 0°(-18°) 2
INSTALLATION
WARNING: Test all gas pip-
ing 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, pages
2 and 3. They are needed to safely
operate this heater. Follow all lo-
cal 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