Checking Gas Connections - Desa Vanguard VSGF28NVA Owner's Operation And Installation Manual

INSTALLATION
12
Connecting Fireplace To Gas Supply (Cont.)

Checking Gas Connections

INSTALLATION
Continued
4. Attach flexible gas line to gas supply (see Figure 19). Check
connection of flexible gas line attached to gas regulator of fire-
place (see Figure 19).
5. Check all gas connections for leaks. See Checking Gas Con-
nections, page 12.
6. Replace log base assembly back into fireplace. Feed flexible
gas line into fireplace base area while replacing log base as-
sembly. Make sure the entire flexible gas line is in fireplace
base area. Reattach log base assembly to fireplace with screws
removed in step 2.
To Fireplace
Gas Regulator
Equipment Shutoff Valve
Provided by Installer
Figure 19 - Attaching Flexible Gas Lines Together
CHECKING GAS CONNECTIONS
WARNING: Test all gas piping and connections
for leaks after installing or servicing. Correct 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 main gas valve (control valve) and
equipment shutoff valve from gas supply piping system. Pres-
sures in excess of 1/2 psig will damage fireplace gas regulator.
2. Cap off open end of gas pipe where equipment shutoff valve
was connected.
3. Pressurize supply piping system by either using compressed
air or opening main gas valve located on or near gas meter.
4. Check all joints of gas supply piping system. Apply noncorrosive
leak detection fluid to all joints. Bubbles forming show a leak.
5. Correct all leaks at once.
6. Reconnect fireplace and equipment shutoff valve to gas sup-
ply. Check reconnected fittings for leaks.
For more information, visit www.desatech.com
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 Figure 20).
2. Pressurize supply piping system by either using compressed
3. Check all joints from gas meter to equipment shutoff valve
4. Correct all leaks at once.
Pressure Testing Fireplace Gas Connections
Flexible Gas Line
1. Open equipment shutoff valve (see Figure 20).
from Equipment
Shutoff Valve
2. Open main gas valve located on or near gas meter.
3. Make sure control knob of fireplace is in the OFF position.
4. Check all joints from equipment shutoff valve to gas control
5. Correct all leaks at once.
6. Light fireplace (see Operating Fireplace, pages 14 through
To Gas
Meter
7. Turn off fireplace (see To Turn Off Gas to Appliance, page 15
Figure 20 - Equipment Shutoff Valve
Figure 21 - Checking Gas Joints
air or opening main gas valve located on or near gas meter.
(see Figure 21). Apply noncorrosive leak detection fluid to all
joints. Bubbles forming show a leak.
valve (see Figure 21). Apply noncorrosive leak detection fluid
to all joints. Bubbles forming show a leak.
17). Check all other internal joints for leaks.
[Thermostat-controlled models] or page 16 [Manually-con-
trolled models]).
Equipment
Shutoff
Valve
Gas Control Valve
Open
ON
POSITION
OFF
Closed
POSITION
Equipment
Shutoff Valve
Gas Meter
107157-01F