12
104353
UNVENTED PROPANE/LP GAS FIREPLACE
DESA INTERNATIONAL
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Manual Shutoff Valve
Manual Gas Valve
Propane Supply
Tank
INSTALLATION
Continued
Test Pressures Equal To or Less Than
1/2 PSIG
1.
Close manual shutoff valve (see Fig-
ure 21).
2.
Pressurize supply piping system by ei-
ther using compressed air or opening
propane/LP supply tank valve.
3.
Check all joints from propane/LP sup-
ply to manual shutoff valve (see Fig-
ure 22). Apply mixture of liquid soap
and water to gas joints. Bubbles form-
ing show a leak.
4.
Correct all leaks at once.
Pressure Testing Fireplace Gas
Connections
1.
Open manual shutoff valve (see Fig-
ure 21).
2.
Open propane/LP supply tank valve.
3.
Make sure control knob of fireplace is
in the OFF position.
Figure 21 - Manual Shutoff Valve
ON
POSITION
OFF
POSITION
Open
Closed
Manual
Shutoff
Valve
Figure 22 - Checking Gas Joints
Pressure Testing Gas Supply
Piping System
Test Pressures In Excess Of 1/2 PSIG
1.
Disconnect fireplace and its individual
manual shutoff valve from gas supply
piping system. Pressures in excess of 1/2
psig will damage fireplace gas regulator.
2.
Cap off open end of gas pipe where
manual shutoff valve was connected.
3.
Pressurize supply piping system by ei-
ther using compressed air or opening
propane/LP supply tank valve.
4.
Check all joints of gas supply piping
system. Apply mixture of liquid soap
and water to gas joints. Bubbles form-
ing show a leak.
5.
Correct all leaks at once.
6.
Re-connect fireplace and manual
shutoff valve to gas supply. Check re-
connected fittings for leaks.
CHECKING GAS
CONNECTIONS
WARNING: Test all gas pip-
ing and connections for leaks
after installing or servicing. Cor-
rect all leaks at once.
WARNING: 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.
4.
Check all joints from manual shutoff
valve to thermostat gas valve (see Fig-
ure 22). Apply mixture of liquid soap
and water to gas joints. Bubbles form-
ing show a leak.
5.
Correct all leaks at once.
6.
Light fireplace (see Operating Fire-
place, pages 14 through 16). Check all
other internal joints for leaks.
7.
Turn off fireplace (see To Turn Off Gas
to Appliance, page 15).
