12

INSTALLATION

Connecting Fireplace Insert To Gas Supply (Cont.) Checking Gas Connections

INSTALLATION

Continued

NOTICE: Most building codes do not permit con- cealed gas connections. A flexible gas line is pro- vided to allow accessibility from the fireplace (see Figure 16). The flexible gas supply line connection to the equipment shutoff valve should be accessible.

4.Connect gas supply line to flexible gas line attached to gas regulator of fireplace insert (see Figure 16). Use sealant on all male pipe threads.

5.Check all gas connections for leaks. See Checking Gas Connections.

6.Replace log base assembly back into fireplace insert. Feed flex- ible gas line into fireplace insert base area while replacing log base assembly. Make sure the entire flexible gas line is in fire- place insert base area. Reattach log base assembly to fireplace insert with screws removed in step 2, page 11.

4.Check all joints of gas supply piping system. Apply a noncorrosive leak detection fluid to all joints. Bubbles forming show a leak.

5.Correct all leaks at once.

6.Reconnect fireplace insert 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 17).

2.Pressurize supply piping system by either opening propane/LP supply tank for propane/LP gas or opening main gas valve lo- cated on or near gas meter or using compressed air.

3.Check all joints from gas meter to equipment shutoff valve for natural gas (see Figure 18), or propane/LP supply to equipment shutoff valve for propane/LP (see Figure 19). Apply a noncorro- sive leak detection fluid to all joints. Bubbles forming show a leak.

4.Correct all leaks at once.

To Fireplace

 

Gas Regulator

 

Flexible Gas Line from Fireplace Gas Regulator Provided with Fireplace Insert

Equipment

Shutoff Valve

 

Propane/LP

 

To External

 

Regulator

Natural

 

To Gas Meter

Equipment

Open

 

Shutoff

 

Valve

 

 

Closed

Figure 17 - Equipment Shutoff Valve

Figure 16 - Attaching Flexible Gas Lines Together

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. Apply a noncorrosive leak detection fluid to all joints. Bubbles forming show a leak. Correct all

Manual Gas Valve

Equipment Shutoff Valve

Gas

Meter

leaks at once.

Figure 18 - Checking Gas Joints (Natural Gas)

Pressure Testing Gas Supply Piping System

Test Pressures In Excess Of 1/2 PSIG (3.5 kPa)

1.Disconnect appliance with its appliance main gas valve (con- trol valve) and equipment shutoff valve from gas supply pip- ing system. Pressures in excess of 1/2 psig will damage fire- place insert 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 for propane/LP gas or opening main gas valve lo- cated on or near gas meter or using compressed air.

Manual Gas Valve

Equipment

Shutoff Valve

Propane/LP

Supply Tank

Figure 19 - Checking Gas Joints (Propane/LP Gas)

For..com

111285-01B

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Desa VI33NR VI33PR installation manual Checking GAS Connections, Pressure Testing Gas Supply Piping System