Desa CGN18R - Manual (Page 16)

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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.
Test Pressures Equal To or Less Than 1/2 PSIG
1. Close manual shutoff valve (see Figure 13).
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 14). 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 13).
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 control valve (see Figure 14).
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 20). Check the rest of the
internal joints for leaks.
7. Turn off heater (see To Turn Off Gas to Appliance, page 20).
8. Replace front panel.
ON
POSITION
OFF
POSITION
Figure 13 - Manual Shutoff Valve
Manual
Shutoff
Valve
Open
Closed
CHECKING
GAS
CONNECTIONS
Continued
Figure 14 - Checking Gas Joints
Control Valve Location
Manual
Shutoff
Valve
Gas Meter