®
UNVENTED PROPANE/LP GAS FIREPLACE
INSTALLATION
Continued
CHECKING GAS
CONNECTIONS
WARNING: Test all gas pip- ing and connections 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 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)
Test Pressures Equal To or Less Than 1/2 PSIG (3.5 kPa)
1.Close equipment shutoff valve (see Fig- ure 21).
2.Pressurize supply piping system by ei- ther using compressed air or opening propane/LP supply tank valve.
3.Check all joints from propane/LP sup- ply to equipment shutoff valve (see Fig- ure 22). Apply noncorrosive leak detec- tion fluid to all joints. Bubbles forming show a leak.
4.Correct all leaks at once.
Open
Equipment
Shutoff
Valve
Closed
Figure 21 - Equipment Shutoff Valve
Pressure Testing Fireplace Gas Connections
1.Open equipment shutoff valve (see Fig- ure 21).
2.Open propane/LP supply tank valve.
3.Make sure control knob of fireplace is in the OFF position.
4.Check all joints from equipment shutoff valve to thermostat gas valve (see Fig- ure 22). Apply noncorrosive leak de- tection fluid to all joints. Bubbles form- ing show a leak.
5.Correct all leaks at once.
6.Light fireplace (see Operating Fire- place, pages 14 through 17). Check all other internal joints for leaks.
7.Turn off fireplace (see To Turn Off Gas to Appliance, page 15
1.Disconnect fireplace with its appliance main gas valve (control valve) and equipment shutoff valve from gas sup- ply pipping. Pressures in excess of 1/2 psig will damage fireplace gas regulator.
2.Cap off open end of gas pipe where equipment shutoff valve was con- nected.
3.Pressurize supply piping system by ei- ther using compressed air or opening propane/LP supply tank valve.
4.Check all joints of gas supply piping system. Apply noncorrosive leak detec- tion fluid to all joints. Bubbles form- ing show a leak.
5.Correct all leaks at once.
6.Reconnect fireplace and equipment shutoff valve to gas supply. Check re- connected fittings for leaks.
Equipment Shutoff Valve
Propane/LP
Supply Tank
Gas Control Valve
Figure 22 - Checking Gas Joints
For more information, visit www.desatech.com | 12 | 107156 |