Checking Gas Connections - Vanguard VSGF28PTC Owner's Operation And Installation Manual

UNVENTED PROPANE/LP GAS FIREPLACE
INSTALLATION
Continued
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
noncorrosive leak detection fluid
to all joints. Bubbles forming
show a leak. Correct all leaks at
once.
Pressure Testing Gas Supply
Piping System
Test Pressures In Excess Of 1/2 PSIG
(3.5 kPa)
1. Disconnect fireplace with its appliance
main gas valve (control valve) and
equipment shutoff valve from gas sup-
ply pipping. Pressures in excess of 1/2
psig will damage fireplace gas regulator.
2. Cap off open end of gas pipe where
equipment shutoff valve was con-
nected.
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 noncorrosive leak detec-
tion fluid to all joints. Bubbles form-
ing show a leak.
5. Correct all leaks at once.
6. Reconnect fireplace and equipment
shutoff valve to gas supply. Check re-
connected fittings for leaks.
For more information, visit www.desatech.com
®
Test Pressures Equal To or Less Than
1/2 PSIG (3.5 kPa)
1. Close equipment 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 equipment shutoff valve (see Fig-
ure 22). Apply noncorrosive leak detec-
tion fluid to all joints. Bubbles forming
show a leak.
4. Correct all leaks at once.
Equipment
Shutoff
Valve
Figure 21 - Equipment Shutoff Valve
Figure 22 - Checking Gas Joints
Pressure Testing Fireplace Gas
Connections
1.
2.
3.
4.
5.
Open
ON
6.
POSITION
7. Turn off fireplace (see To Turn Off Gas
OFF
Closed
POSITION
Equipment Shutoff Valve
Gas Control Valve
12
Open equipment shutoff valve (see Fig-
ure 21).
Open propane/LP supply tank valve.
Make sure control knob of fireplace is
in the OFF position.
Check all joints from equipment shutoff
valve to thermostat gas valve (see Fig-
ure 22). Apply noncorrosive leak de-
tection fluid to all joints. Bubbles form-
ing show a leak.
Correct all leaks at once.
Light fireplace (see Operating Fire-
place, pages 14 through 17). Check all
other internal joints for leaks.
to Appliance, page 15 [thermostat-con-
trolled models] or page 16 [manually-
controlled models]).
Propane/LP
Supply Tank
107156