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ON
POSITION
OFF
POSITION
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 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 (models
VN2000BTA and VN2800BTA) or control valve (model VN2000BA) (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 all other
internal joints for leaks.
7. Turn off heater (see To Turn Off Gas to Appliance, page 19 [models VN2000BTA
and VN2800BTA] or page 22 [model VN2000BA]).
8. Replace front panel.
Manual
Shutoff
Valve
Thermostat Gas Valve or
Control Valve Location
Figure 14 - Manual Shutoff Valve
Gas Meter
Figure 15 - Checking Gas Joints
Manual
Shutoff
Valve
Open
Closed
CHECKING
GAS
CONNECTIONS
Continued