Desa VsGF28PTF Checking GAS Connections, Test Pressures Equal To or Less Than Psig 3.5 kPa

Models: VsGF28nTF VsGF28PTF

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Installation

Continued

NOTICE: Most building codes do not permit concealed gas connections. A flexible gas line is provided to allow accessibility fromthefireplace(seeFigure20). The flexible gas supply line con- nection to the equipment shutoff valve should be accessible.

4.Attach the flexible gas line to gas supply (see Figure 20). Check tightness of flexible gas line attached to gas regulator of fireplace (see Figure 20).

5.Check all gas connections for leaks. See

Checking Gas Connections, page 16.

6.Replace log base assembly back into fireplace. Feed flexible gas line into fireplace base area while replacing log base assembly. Make sure the entire flexible gas line is in fireplace base area. Reattach log base assembly to fireplace with screws removed in step 2.

To Fireplace

Equipment

Shutoff Valve

Gas Regulator

Provided by

 

 

Installer

 

Propane/LP

Flexible Gas Line

To External

Regulator

from Fireplace

 

Gas Regulator

 

 

Natural Gas

 

To Gas Meter

Figure 20 - Attaching Flexible Gas Lines

CHECKING GAS CONNECTIONS

Pressure Testing gas Supply Piping system

Test Pressures In Excess Of 1/2 PSIG

(3.5 kPa)

1. Disconnect fireplace with its 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.

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 fittings for leaks.

Test Pressures Equal To or Less Than

1/2 PSIG (3.5 kPa)

1. Close equipment shutoff valve (see Figure 21).

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 22 and 23, page 16). Apply noncorrosive leak detection fluid to all joints. Bubbles forming show a leak.

4. Correct all leaks at once.

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.

Equipment Shutoff Valve

Open

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.

Closed

Figure 21 - Equipment Shutoff Valve

119303-01A

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Desa VsGF28PTF, VsGF28nTF installation manual Checking GAS Connections, Test Pressures Equal To or Less Than Psig 3.5 kPa