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INSTALLATION
CHECKING GAS CONNECTIONS
WARNING: Test all gas piping and connections for leaks after installing or servicing. Correct all
leaks immediately.
WARNING: Never use an open flame to check for a leak. Apply a mixture of liquid soap and water
to all joints. If bubbles form, there may be a leak. Correct all leaks immediately.
Pressure Testing Gas Supply Piping System
Test Pressures In Excess Of 1/2 PSIG ( 3.5kPa )
1. Disconnect heater with its appliance main gas valve (control valve) and equipment shutoff valve
from gas supply piping system. Pressures in excess of 1/2 PSIG will damage heater regulator.
2. Cap off open end of gas pipe where equipment shutoff valve was connected.
3. Pressurize supply piping system by either using compressed air or opening gas supply tank valve.
4. Check all joints of gas supply piping system. Apply mixture of liquid soap and water to gas joints. If
bubbles form, there may be a leak.
5. Correct all leaks immediately.
6. Reconnect heater and equipment shutoff valve to gas supply. Check reconnected fittings for leaks.
Test Pressures Equal To or Less Than 1/2 PSIG (3.5 kPa)
1. Close equipment shutoff valve (See Fig. 12).
2. Pressure supply piping system by either using compressed air or opening gas supply tank valve.
3. Check all joints from gas meter to equipment shutoff valve (See Fig.13). Apply mixture of liquid
soap and water to gas joints. If bubbles form, there may be a leak.
4. Correct all leaks immediately.
Pressure Testing Heater Gas Connections
1. Open equipment shutoff valve (See Fig. 12).
2. Open gas supply tank valve.
3. Make sure control knob of heater is in the OFF position.
4. Check all joints from equipment shutoff valve to control valve
(See Fig. 13). Apply mixture of liquid soap and water to gas joints.
If bubbles form, there may be a leak.
5. Light heater (see Operation, page 19-20).
Check all other internal joints for leaks.
6. Turn off heater (see "To Turn Off Gas to Appliance," page 20).
Fig. 13 - Checking Gas Joints
(Propane/LP Only)
Fig. 12 - Equipment Shutoff Valve
Fig. 14 - Checking Gas Joints
(Natural Gas Only)
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