Desa VVDA24M, VVSA24M, VVDA18M, VVDA30M, VVSA18M Checking GAS Connections, Hearth PAN Installation

Models: VVDA30M VVDA24M VVDA18M VVSA18M VVSA24M

1 28
Download 28 pages 39.74 Kb
Page 6
Image 6

6

INSTALLATION

Checking Gas Connections Hearth Pan Installation

INSTALLATION

Continued

CHECKING GAS CONNECTIONS

HEARTH PAN INSTALLATION

WARNING: Test all gas piping and connections 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 leaks at once.

Pressure Testing Gas Supply Piping System

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

1.Disconnect log set and its individual equipment shutoff valve from gas supply piping system.

2.Cap off open end of gas pipe where equipment shutoff valve was connected.

3.Pressurize supply piping system by either using compressed air or opening main gas valve located on or near gas meter.

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 log set 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 5).

2.Pressurize supply piping system by either using compressed air or opening main gas valve located on or near gas meter.

3.Check all joints from gas meter to equipment shutoff valve (see Figure 5). Apply a noncorrosive leak detection fluid to all joints. Bubbles forming show a leak.

4.Correct all leaks at once.

Equipment Shutoff Valve

Gas Meter

If using propane/LP gas, see Propane/LP Gas Conversion before installing hearth pan.

1.Place the burner pan assembly in the center of the fireplace floor. Make sure the front of pan faces forward.

2.Thread the gas supply fitting to the fireplace gas supply pipe. Adjust to most convenient position.

3.Install the gas connector tube to the gas supply fitting. Carefully shape tube to attach to inlet fitting. Be careful not to cause kinks in tube.

4.Test for leaks following instructions under Testing Burner for Leaks, page 8.

5.Retighten and adjust the location of the gas control as necessary. The gas control should be level, with the control rod to the front.

Gas Control

Valve

Regulator

Gas Connector Tube

Figure 6 - Installing Inlet Fitting and Gas Connector Tube (Valve Cover Removed for Clarity)

Propane/LP Gas Conversion

To convert to propane/LP gas, the burner inlet fitting and pilot orifice must be replaced and the regulator pressure must be reset. The propane/LP burner inlet fitting is supplied with the orifice installed. The propane/LP pilot orifice for converting the pilot is supplied and is marked with a red stripe.

1.Remove control rod extension and piezo ignitor by pulling gently.

2.Remove screws that attach pilot assembly to valve cover and valve cover to burner pan (see Figure 7, page 7).

3.Remove valve cover.

Figure 5 - Checking Gas Joints

For morevisit www..com

901268

Page 6
Image 6
Desa VVDA24M, VVSA24M, VVDA18M, VVDA30M, VVSA18M installation manual Checking GAS Connections, Hearth PAN Installation