Vanguard VI33NR Owner's operation and installation manual - Installation
111285-01A
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For more information, visit www.desatech.com
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INSTALLATION
Continued
CHECKING GAS CONNECTIONS
WARNING: Test all gas piping and connections,
internal and external to unit, 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 appliance with its appliance main gas valve (con-
trol valve) and equipment shutoff valve from gas supply pip-
ing system. Pressures in excess of 1/2 psig will damage fire-
place insert gas regulator.
2.
Cap off open end of gas pipe where equipment shutoff valve
was connected.
3.
Pressurize supply piping system by either opening propane/LP
supply tank for propane/LP gas or opening main gas valve lo-
cated on or near gas meter or using compressed air.
4.
Check all joints of gas supply piping system. Apply a noncorrosive
leak detection fluid to all joints. Bubbles forming show a leak.
5.
Correct all leaks at once.
6.
Reconnect fireplace insert and equipment shutoff valve to gas
supply. Check reconnected fittings 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 for propane/LP gas or opening main gas valve lo-
cated on or near gas meter or using compressed air.
3.
Check all joints from gas meter to equipment shutoff valve for
natural gas (see Figure 22), or propane/LP supply to equip-
ment shutoff valve for propane/LP (see Figure 23). Apply a
noncorrosive leak detection fluid to all joints. Bubbles form-
ing show a leak.
4.
Correct all leaks at once.
Pressure Testing Fireplace Insert 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 supply tank valve.
3.
Make sure control knob of fireplace insert is in the OFF position.
4.
Check all joints from gas meter to equipment shutoff valve for
natural gas (see Figure 22), or propane/LP supply to equip-
ment shutoff valve for propane/LP (see Figure 23). Apply a
noncorrosive leak detection fluid to all joints. Bubbles form-
ing show a leak.
5.
Correct all leaks at once.
6.
Light fireplace insert (see Operating Fireplace Insert, pages
16 through 18). Check all other internal joints for leaks.
7.
Turn off fireplace insert (see To Turn Off Gas to Appliance,
page 17).
Figure 21 - Equipment Shutoff Valve
Equipment
Shutoff
Valve
ON
POSITION
OFF
POSITION
Open
Closed
Equipment
Shutoff Valve
Gas
Meter
Figure 22 - Checking Gas Joints (natural gas)
Manual Gas Valve
INSTALLATION
Checking Gas Connections
Figure 23 - Checking Gas Joints (propane/LP gas)
Equipment Shutoff
Valve
Propane/LP
Supply Tank
Manual Gas Valve