GAS SUIPPLY AND PIPING (Cont.)
13 | Checking Gas Connections |
GAS SUPPLY AND PIPING 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.Applynoncorrosiveleakdetectionfluidtoalljoints. 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 and its individual equipment shutoff valve fromthegassupplypipingsystem.Pressuresinexcessof1/2psig (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/LPgas fireplace or opening main gas valve located on or near gas meter for natural gas fire- place, or by using compressed air.
4.Check all joints of gas supply piping sytem. Apply noncorro- sive leak detection fluid to all joints at once.
5.Reconnect fireplace 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 25).
2.Pressurize supply piping system by either opening propane/LP supply tank valve for propane/LPgas fireplace or opening main gas valve located on or near gas meter for natural gas fire- place, or by using compressed air.
4.Check all joints from propane/LP supply tank or gas meter to equipment shutoff valve (see Figure 26 for propane/LP or Figure 27 for natural gas). Apply noncorrosive leak detection fluid to all joints. Bubbles forming show a leak. Correct all leaks at once.
Equipment
Shutoff
Open
Valve
Closed
Propane/LP | Equipment |
Supply Tank | Shutoff |
| Valve |
Gas Valve |
Figure 26 - Checking Gas Joints for Propane/LP Gas Fireplace
Equipment
Shutoff
Valve
Gas
Meter
Gas Valve
Figure 27 - Checking Gas Joints for Natural Gas Fireplace
Pressure Testing Fireplace Gas Connections
1.Open equipment shutoff valve (see Figure 25).
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.Check all joints from equipment shutoff valve to gas valve (see Figure 26 for propane/LP or Figure 27 for natural gas, Apply noncorrosive leak detection fluid to all joints. Bubbles formed show a leak. Correct all leaks at once.
5.Light fireplace (see Operating Fireplace, page 16 or 17 depend- ing on ignition system). Check all other internal joints for leaks.
5.Turn off fireplace (see To Turn Off Gas toAppliance, page 16 or page 17 depending on ignition system).
Figure 25 - Equipment Shutoff Valve
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