20
88-A951X001-1D-EN
Gas Piping
Important:
When converting the gas piping from the factory default,
the plug must be removed from the new gas piping
location and swapped with the grommet from the default
location. The upflow furnace default is left side gas
piping. The downflow furnace default is right side gas
piping.
Upflow furnace with gas piping on left side
Automatic Gas Valve
with Manual Shut-off
Main Manual
Shut-off Valve
Ground
Union
Joint
Drip Leg
Gas Line
Grommet
1/8” NPT
Test Fitting
Upflow furnace with gas piping on right side
Automatic Gas Valve
with Manual Shut-off
Main Manual
Shut-off Valve
Ground
Union
Joint
Drip Leg
Gas Line
Grommet
1/8” NPT
Test Fitting
Downflow furnace with gas piping on left side
Automatic Gas Valve
with Manual Shut-off
Main Manual
Shut-off Valve
Ground
Union
Joint
Drip Leg
Gas Line
Grommet
1/8” NPT
Test Fitting
Downflow furnace with gas piping on right side
Automatic Gas Valve
with Manual Shut-off
Main Manual
Shut-off Valve
Ground
Union
Joint
Drip Leg
Gas Line
Grommet
1/8” NPT
Test Fitting
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