Amana xMVM97 series Installation Instructions Manual page 30

Connect the furnace to the building piping by one of the
following methods:
–
Rigid metallic pipe and fittings.
–
Semi-rigid metallic tubing and metallic fittings.
Aluminum alloy tubing must not be used in exterior
locations. In order to seal the grommet cabinet
penetration, rigid pipe must be used to reach the
outside of the cabinet. A semi-rigid connector to
the gas piping may be used from there.
•
Use listed gas appliance connectors in accordance with
their instructions. Connectors must be fully in the same
room as the furnace.
•
Protect connectors and semirigid tubing against physical
and thermal damage when installed. Ensure aluminum-
alloy tubing and connectors are coated to protect against
external corrosion when in contact with masonry, plaster,
or insulation, or subjected to repeated wetting by liquids
such as water (except rain water), detergents, or sewage.
Gas Piping Connections
Alternate Manifold
Gas Line
Location
Gas Valve
*Ground
Joint
Pipe
Union
*NOTE: Union may be inside furnace cabinet where allowed by local codes.
30
Manual Shut Off Valve
Burners
(upstream from
ground joint
pipe union)
*Ground
Joint
Pipe
Union
Drip Leg
Grommet
in Standard
Gas Line
Hole
UPFLOW
Figure 35
Manual Shut Off Valve
(upstream from ground joint pipe union)
*Ground
Joint
Pipe Union
Grommet
in Standard
Gas Line
Hole
Drip Leg
*NOTE: Union may be inside furnace cabinet where allowed by local codes.
COUNTERFLOW
When gas line is in the alternate location, swap the position of
the plug and grommet.
UPFLOW - HORIZONTAL LEFT
Plug in
Alternate
Gas Line
Hole
Gas Valve
Burners
Figure 36
Manual Shut Off Valve
(upstream from
ground joint
pipe union)
Figure 37
Alternate
Gas Line
Location
*Ground
Joint
Pipe Union