Desa NATURAL GAS LOG HEATER Installing, Continued, Test Pressures Equal To or Less Than 1/2 PSIG

INSTALLING

Continued

18

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 mixture of liquid soap and water to gas joints. Bubbles forming show a leak.

5.Correct all leaks at once.

6.Re-connect heater and manual shutoff valve to gas supply. Check re-connected fittings for leaks.

Test Pressures Equal To or Less Than 1/2 PSIG

1.Close manual shutoff valve (see Figure 14).

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 manual shutoff valve (see Figure 15). Apply mixture of liquid soap and water to gas joints. Bubbles forming show a leak.

4.Correct all leaks at once.

Pressure Testing Heater Gas Connections

1.Open manual shutoff valve (see Figure 14).

2.Open main gas valve located on or near gas meter.

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

4.Check all joints from manual shutoff valve to thermostat gas valve (thermostat-con- trolled models) or control valve (manually-controlled models) (see Figure 15). Apply mixture of liquid soap and water to gas joints. Bubbles forming show a leak.

5.Correct all leaks at once.

6.Light heater (see Operating Heater, pages 20 through 23). Check all other internal joints for leaks.

7.Turn off heater (see To Turn Off Gas to Appliance, page 21 [thermostat- controlled models] or page 23 [manually-controlled models]).

Open

Manual

Shutoff

Valve

Closed

Figure 14 - Manual Shutoff Valve

Manual	Thermostat Gas Valve or
Shutoff
	Control Valve Location
Valve
Gas Meter

Figure 15 - Checking Gas Joints

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