INSTALLATION
Continued
CHECKING GAS CONNECTIONS
WARNING: Test all gas pip- ing and connections, internal and external to unit, 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 detec- tion fluid to all joints. Bubbles forming show a leak. Correct all leaks at once.
CAUTION: Make sure exter- nal regulator has been installed between propane/LP supply and fireplace. See guidelines under Connecting Fireplace to Gas
Test Pressures Equal To or Less Than 1/2 PSIG (3.5 kPa)
1.Close equipment shutoff valve (see Figure 23).
2.Pressurize supply piping system by either opening propane/LP supply tank valve for propane/LP gas or opening main gas valve located on or near gas meter for natural gas or using compressed air.
3.Check all joints from gas meter to equipment shutoff valve for natural gas or propane/LP supply to equipment shutoff valve for propane/LP (see Figures 24 or 25). Apply noncorrosive leak detection fluid to all joints. Bubbles forming show a leak.
4.Correct all leaks at once.
Equipment 
Open
Shutoff
Valve
Closed
Figure 23 - Equipment Shutoff Valve
Supply, page 15.
PRESSURE TESTING GAS SUPPLY PIPING SYSTEM
Test Pressures In Excess Of 1/2 PSIG (3.5 kPa)
1. Disconnect fireplace with its appliance main |
gas valve (control valve) and equipment |
shutoff valve from gas supply piping system. |
Pressures in excess of 1/2 psig will damage |
fireplace regulator. |
Gas Control Valve |
Equipment
Shutoff
Valve
Gas Meter
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 or opening main gas valve |
| located on or near gas meter for natural gas |
| 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. |
5. | Correct all leaks at once. |
6. | Reconnect fireplace and equipment shutoff |
| valve to gas supply. Check reconnected fit- |
| tings for leaks. |
Figure 24 - Checking Gas Joints for
Natural Gas
Equipment Shutoff Valve |
Propane/LP |
Supply Tank |
Gas Control Valve |
Figure 25 - Checking Gas Joints for
Propane/LP Gas
16 | www.desatech.com |