Desa RH10PT Owner's Operation And Installation Manual page 8

INSTALLATION
Continued
CONNECTING TO PORTABLE
CYLINDER GAS SUPPLY
WARNING: Review and un-
derstand the warnings in the
Safety Information section, page
3. They are needed to safely op-
erate 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 noncorrosive
leak detection fluid to all joints.
Bubbles forming show a leak.
Correct all leaks at once.
WARNING: Use pipe joint
sealant that is resistant to liquid
petroleum (LP) gas.
Never bring a refillable pro-
pane/LP cylinder indoors. A fire
or explosion can occur causing
property damage, serious injury
or death.
IMPORTANT: You must use a propane/LP gas
supply cylinder that is compatible with the connec-
tion device provided with the hose and regulator.
1. Remove 90° gas fitting from hardware bag.
2. Apply pipe joint sealant lightly to male NPT
threads (see Figure 10). This will prevent excess
sealant from going into pipe. Excess sealant in
pipe could result in clogged heater valves.
3. Hold gas pressure regulator with wrench when
connecting the 90° gas fitting. Do not over
tighten connection to regulator. The regulator
body could be damaged.
4. Provide propane/LP supply system (see Pro-
pane/LP Supply, page 5).
5. Connect fuel gas fitting on hose/regulator assem-
bly to propane/LP tank(s). Turn fuel gas fitting
counterclockwise into threads on tank. Tighten
firmly using a wrench. IMPORTANT: Position
regulator so that hose leaving the regulator is
in a horizontal position (see Figure 11). This
8
places the regulator vent in the proper position
to protect it from the weather.
6. Connect hose to heater inlet. Tighten firmly
using a wrench. You must use the regulator
supplied with heater.
7. Open propane/LP supply valve on propane/LP
tank(s) slowly. Note: If not opened slowly,
excess-flow check valve on propane/LP tank
may stop gas flow. If this happens, close pro-
pane/LP supply valve and open again slowly.
8. Check all connections for leaks. Apply a noncor-
rosive leak detection fluid to gas joints. Bubbles
forming show a leak that must be corrected.
9. Close propane/LP supply valve.
Propane/LP
Supply Valve
Propane/LP
Tank
www.desatech.com
Regulator
Fuel Gas
Fitting
Figure 11 - Regulator Position
Hose To
Heater
110373-01E