CHECKING

4.

Check all joints of gas supply piping system. Apply mixture of liquid soap and

 

GAS

 

water to gas joints. Bubbles forming show a leak.

5. Correct all leaks at once.

CONNECTIONS

Test Pressures Equal To or Less Than 1/2 PSIG

Continued

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 models) or control valve (non-thermostat model) (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 17 through 22). Check the rest of the internal joints for leaks.

7.Turn off heater (see To Turn Off Gas to Appliance, page 19 [thermostat models] or page 22 [non-thermostat model]).

8.Replace front panel.

Open

Manual

Shutoff

Valve

Closed

Figure 14 - Manual Shutoff Valve

Thermostat Gas Valve or

Control Valve Location

Gas Meter

Manual

Shutoff

Valve

Figure 15 - Checking Gas Joints

16

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Image 16
Desa installation manual Checking, Pressure Testing Heater GAS Connections

A specifications

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