Gas Piping - American Standard S9X1 Installer's Manual

F F u u r r n n a a c c e e G G e e n n e e r r a a l l I I n n s s t t a a l l l l a a t t i i o o n n

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
1/8" NPT
Test Fitting
Main Manual
Shut-o Valve
Gas Line
Grommet
Ground
Union
Joint
Drip Leg
Downflow furnace with gas piping on left side
1/8" NPT
Test Fitting
Main Manual
Shut-o Valve
Gas Line
Grommet
Ground
Union
Joint
Drip Leg
20
Automatic Gas Valve
with Manual Shut-o
Automatic Gas Valve
with Manual Shut-o
Upflow furnace with gas piping on right side
Automatic Gas Valve
with Manual Shut-o
Downflow furnace with gas piping on right side
Automatic Gas Valve
with Manual Shut-o
1/8" NPT
Test Fitting
Main Manual
Shut-o Valve
Gas Line
Grommet
Ground
Union
Joint
Drip Leg
1/8" NPT
Test Fitting
Main Manual
Shut-o Valve
Gas Line
Grommet
Ground
Union
Joint
Drip Leg
18-CE12D1-1D-EN