Desa FLAME-MAX UNVENTED (VENT-FREE) PROPANE/LP GAS LOG HEATER - Manual (Page 12)

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UNVENTED PROPANE/LP GAS LOG HEATER
VANGUARD FLAME-MAX™
ON
POSITION
OFF
POSITION
INSTALLATION
Continued
Figure 15 - Manual Shutoff Valve
Open
Closed
Manual
Shutoff
Valve
Figure 16 - Checking Gas Joints
Control Valve
Location
Propane
Supply Tank
Manual
Shutoff
Valve
Pressure Testing Gas Supply
Piping System
Test Pressures In Excess Of 1/2 PSIG
1. Disconnect heater and its individual
manual shutoff valve from gas supply
piping system. Pressures in excess of
1/2 psig will damage heater 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 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 heater and manual shutoff
valve to gas supply. Check re-con-
nected fittings for leaks.
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.
WARNING: Test all gas pip-
ing and connections for leaks
after installing or servicing. Cor-
rect all leaks at once.
CAUTION: Make sure exter-
nal regulator has been installed
between propane supply and
heater. See guidelines under
Con-
necting to Gas Supply, page 10.
CHECKING GAS
CONNECTIONS
Test Pressures Equal To or Less Than
1/2 PSIG
1. Close manual shutoff valve (see Fig-
ure 15).
2. Pressurize supply piping system by ei-
ther using compressed air or opening
propane supply tank valve.
3. Check all joints from propane supply
tank to manual shutoff valve (see Fig-
ure 15). Apply mixture of liquid soap
and water to gas joints. Bubbles form-
ing show a leak.
4. Correct all leaks at once.
Pressure Testing Heater Gas
Connections
1. Open manual shutoff valve (see Fig-
ure 15).
2. Open propane supply tank valve.
3. Make sure control knob of heater is in
the OFF position.
4. Check all joints from manual shutoff
valve to control valve (see Figure 16).
Apply mixture of liquid soap and wa-
ter to gas joints. Bubbles forming show
a leak.
5. Correct all leaks at once.
6. Light heater (see Operating Heater,
pages 14 and 15). Check all other in-
ternal joints for leaks.
7. Turn off heater (see To Turn Off Gas to
Appliance, page 15).