18
102650
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-
controlled models) or control valve (variably-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 22 [Thermostat-Con-
trolled Models] or pages 22 through 24 [Variable Manually-Controlled Mod-
els]). 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 24 [Variable Manually-Controlled Models]).
INSTALLING
Continued
Figure 14 - Manual Shutoff Valve
ON
POSITION
OFF
POSITION
Open
Closed
Manual
Shutoff
Valve
Figure 15 - Checking Gas Joints
Gas Meter
Manual
Shutoff
Valve
Thermostat Gas Valve or
Control Valve Location
