Checking Gas Connections - Desa Vanguard VSGF28NTE Owner's Operation And Installation Manual

INSTALLATION
Continued

CHECKING GAS CONNECTIONS

WARNING: Test all gas pip-
ing and connections, internal
and external to unit, 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 de-
tection 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 supply pipping. Pres-
sures in excess of 1/2 psig will damage fire-
place gas regulator.
2. Cap off open end of gas pipe where equip-
ment shutoff valve was connected.
3. Pressurize supply piping system by either
opening propane/LP supply tank valve for
propane/LP gas or opening main gas valve lo-
cated on or near gas meter for natural gas, or
by using compressed air.
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 supply. Check reconnected fit-
tings for leaks.
Test Pressures Equal To or Less Than 1/2 PSIG
(3.5 kPa)
1. Close equipment shutoff valve (see Figure 21).
2. Pressurize supply piping system by either
opening propane/LP supply tank valve for
propane/LP gas or opening main gas valve lo-
cated on or near gas meter for natural gas, or
using compressed air.
3. Check all joints from gas meter for natural or
propane/LP supply to equipment shutoff valve
(see Figure 22 or 23). Apply noncorrosive leak
detection fluid to all joints. Bubbles forming
show a leak.
4. Correct all leaks at once.
113135-01A
Pressure Testing Fireplace Gas
Connections
1. Open equipment shutoff valve (see Figure 21).
2. Open main gas valve located on or near gas
meter for natural gas or open propane/LP sup-
ply tank valve.
3. Make sure control knob of fireplace is in the
OFF position.
4. Check all joints from equipment shutoff valve
to gas control valve (see Figure 22 or 23).
Apply noncorrosive leak detection fluid to all
joints. Bubbles forming show a leak.
5. Correct all leaks at once.
6. Light fireplace (see Operating Fireplace,
pages 17 and 18). Check all other internal
joints for leaks.
7. Turn off fireplace (see To Turn Off Gas to
Appliance, page 18).
Equipment
Shutoff
Valve
Figure 21 - Equipment Shutoff Valve
Gas Control Valve
Figure 22 - Checking Gas Joints (Natural
Gas Control Valve
Figure 23 - Checking Gas Joints
www.desatech.com
Gas Only)
Equipment Shutoff Valve
(Propane/LP Gas Only)
Open
ON
POSIT
Closed
O
POS
Equipment
Shutoff
Valve
Gas Meter
Propane/LP
Supply Tank
15