Installation

Continued

CAUTION: Make sure exter- nal regulator has been installed between propane/LPsupply and fireplace. See guidelines under Connecting Fireplace to Gas Supply, page 14.

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 sup- ply to equipment shutoff valve for propane/LP (see Figures 22 and 23). Apply noncorrosive leak detection fluid to all joints. Bubbles form- ing show a leak.

4. Correct all leaks at once.

Open

Equipment

Shutoff

Valve

Closed

Figure 21 - Equipment Shutoff Valve

Equipment Shutoff Valve

Gas Meter

Gas Control Valve

Figure 22 - Checking Gas Joints for

Natural Gas

Equipment Shutoff Valve

Propane/LP

Supply Tank

Gas Control Valve

Figure 23 - Checking Gas Joints for

Propane/LP Gas

Pressure Testing Fireplace Gas

Connections

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

2. Open main gas valve located on or near gas meter for natural gas or open propane/LP supply tank valve.

3. Make sure control knob of fireplace is in the OFF position.

4. Check all joints from equipment shutoff valve to gas control valve (see Figures 22 or 23). Apply noncorrosive leak detection fluid to all joints. Bubbles forming show a leak.

5. Correct all leaks at once.

6. Light fireplace (see Operating Fireplace, page

17. Check all other internal joints for leaks.

7. Turn off fireplace (see To Turn Off Gas to Appliance, page 18).

119304-01A

www.desatech.com

15

Page 15
Image 15
Desa VSGF33PRC, VSGF33NRC Test Pressures Equal To or Less Than Psig 3.5 kPa, Pressure Testing Fireplace Gas Connections