Goodman GMH95 Installation Instructions Manual page 30

GAS VALVE
MANIFOLD
GAS LINE
PLUG IN
GAS LINE
HOLE
PIPE UNION DRIP LEG
GAS VALVE
BURNERS
PLUG IN ALTERNATE
MANIFOLD
GAS LINE HOLE
LINE LOCATION
HORIZONTAL [UPFLOW MODEL]
E
DGES OF SHEET METAL HOLES MAY BE SHARP
PRECAUTION WHEN REMOVING HOLE PLUGS
D /S I P
IRECT TANDARD NLET IPING
When gas piping enters directly to the gas valve through the stan-
dard inlet hole, the installer must supply straight pipe with a ground
joint union to reach the exterior of the furnace. The rigid pipe must
be long enough to reach the outside of the cabinet to seal the
grommet cabinet penetration. A semi-rigid connector to the gas
piping can be used outside the cabinet per local codes.
I /A I
NDIRECT LTERNATE NLET
When gas piping enters indirectly to the gas valve through the
alternate gas inlet hole, the following 1/2 inch pipe fittings (starting
from the gas valve) to reach the outside of the cabinet must be
supplied:
SHUT OFF VALVE
(UPSTREAM FROM
PIPE UNION)
GAS LINE HOLE
DRIP LEG
PIPE UNION
MANUAL SHUT-OFF VALVE
JOINT PIPE UNION)
GAS LINE HOLE
WARNING
. U
SE GLOVES AS A
.
P
IPING
DRIP LEG
HORIZONTAL[COUNTERFLOW MODEL]
Gas Piping Connections
•
(1) Close nipple
•
(1) 90 degree street elbow
•
(1) 2 1/2" pipe nipple
•
(1) 90 degree elbow
•
Straight Pipe
•
The straight pipe must be long enough to reach the outside
of the cabinet so as to seal the grommet cabinet penetration
and to install the ground joint union outside the cabinet. A
semi-rigid connector to the gas piping can be used outside
the cabinet per local codes.
30
HORIZONTAL[COUNTERFLOW]
PLUG IN
ALTERNATE
GAS LINE
HOLE
GAS VALVE