Desa (V)V36EN-B - Manual (Page 20)

111253-01E
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20
Pressure Testing Gas Supply Piping System
Test Pressures In Excess Of 1/2 PSIG (3.5 kPa)
1. Disconnect fireplace and its individual equipment shutoff valve
from gas supply piping system. Pressures in excess of 1/2 psig
(3.5 kPa) 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 opening propane/LP
supply tank valve for propane/LP gas fireplace or opening main
gas valve located on or near gas meter for natural gas fire-
place, or using compressed air.
4. Check all joints of gas supply piping system. Apply noncorro-
sive leak detection fluid to all joints. Bubbles forming show a
leak. Correct all leaks at once.
5. Reconnect fireplace and equipment shutoff valve to gas sup-
ply. 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 33).
2. Pressurize supply piping system by either opening propane/LP
supply tank valve for propane/LP gas fireplace or opening main
gas valve located on or near gas meter for natural gas fire-
place, or using compressed air.
3. Check all joints from propane/LP supply tank or gas meter to
equipment shutoff valve (see Figure 34 for propane/LP or Figure
35 for natural gas). Apply noncorrosive leak detection fluid to all
joints. Bubbles forming show a leak. Correct all leaks at once.
Pressure Testing Fireplace Gas Connections
1. Open equipment shutoff valve (see Figure 33).
2. Open propane/LP supply tank valve for propane/LP fireplace
or main gas valve located on or near gas meter for natural
gas fireplace.
3. Make sure control knob of fireplace is in the OFF position.
4. Check all joints from equipment shutoff valve to gas valve
(see Figure 34 for propane/LP or Figure 35 for natural gas).
Apply noncorrosive leak detection fluid to all joints. Bubbles
forming show a leak. Correct all leaks at once.
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 noncorrosive leak detection fluid to all joints.
Bubbles forming show a leak. Correct all leaks at once.
Open
Closed
Equipment
Shutoff
Valve
Figure 34 - Checking Gas Joints for Propane/LP Gas Fireplace
Propane/LP
Supply Tank
Gas Valve
Equipment
Shutoff
Valve
Figure 33 - Equipment Shutoff Valve
Figure 35 - Checking Gas Joints for Natural Gas Fireplace
Gas
Meter
Gas Valve
Equipment
Shutoff
Valve
FIREPLACE INSTALLATION
Continued
FIREPLACE INSTALLATION
Checking Gas Connections
5. Light fireplace (see Operating Fireplace, page 25). Check all
other internal joints for leaks.
6. Turn off fireplace (see To Turn Off Gas to Appliance, page 25).