Fireplace
Installation
Continued
To Gas Supply
(Natural)Equipment
Shutoff Valve
To External 
Regulator (Propane/LP)
Flexible Gas Line
Do NOT Kink
Control Valve
Figure 33 - Connecting Flexible Gas Line
to Millivolt Valve
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:Neveruseanopen flame to check for a leak. Apply noncorrosive leak detection fluid toalljoints.Bubblesformingshow 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 equip- ment 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 fireplace or 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. Correct all leaks 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 34).
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 fireplace or using compressed air.
3. Check all joints from propane/LP supply tank or gas meter to equipment shutoff valve (see Figure 35 or Figure 36). Apply noncorrosive leak detection fluid to all joints. Bubbles form- ing show a leak. Correct all leaks at once.
Equipment | Open |
Shutoff Valve |
Closed
Figure 34 - Equipment Shutoff Valve
Propane/LP Equipment Shutoff Valve |
Supply Tank |
Gas Valve |
Figure 35 - Checking Gas Joints for |
Propane/LP Gas Fireplace |
Equipment |
Shutoff Valve |
Gas |
Meter |
Gas Valve |
Figure 36 - Checking Gas Joints for |
Natural Gas Fireplace |
www.desatech.com | 23 |
