Installation Positions; Horizontal Applications & Considerations; Furnace Suspension; Front Cover Pressure Switch Tube Location - Amana MVM97 Installation Instructions Manual

House depressurization can cause back drafting or im-
proper combustion of gas-fired appliances, thereby expos-
ing building occupants to gas combustion products that
could include carbon monoxide.
When the furnace is installed as a direct vent (2-pipe sys-
tem) furnace, no special provisions for air for combustion
are required. However, if this furnace is to be installed in
the same space with other gas appliances, such as a water
heater, ensure there is an adequate supply of combustion
and ventilation air for the other appliances. Refer to the
latest edition of the National Fuel Gas Code NFPA 54/ANSI
Z223.1 or CAN/CSA B149.1-15 Installation Codes or appli-
cable provisions of the local building codes for determin-
ing the combustion air requirements for the appliances.
Most homes will require outside air be supplied to the
furnace area by means of ventilation grilles or ducts
connecting directly to the outdoors or spaces open to the
outdoors such as attics or crawl spaces.

Installation Positions

*MVM97 models may be installed upflow or horizontal-
ly with left or right side down. *CVM97 models may be
installed downflow or horizontally with left or right side
down.
Do not install this furnace on its back. For upright upflow
furnaces, return air ductwork may be attached to the side
panel(s) and/or basepan. For horizontal upflow furnaces,
return air ductwork must be attached to the basepan.
For both upright or horizontal counterflow furnaces,
return ductwork must be attached to the basepan (top
end of the blower compartment). NOTE: Ductwork must
never be attached to the back of the furnace. Refer to
"Recommended Installation Positions" figure for appro-
priate installation positions, ductwork connections, and
resulting airflow arrangements.
Figure 4A
Recommended Installation Positions
Horizontal Applications & Considerations
When installing a furnace horizontally, additional consid-
eration must be given to the following:

Furnace Suspension

If suspending the furnace from rafters or joists, use 3/8"
threaded rod and 2"x2"x1/8" angle iron as shown in the
following diagram. The length of rod will depend on the
application and the clearances necessary.
If the furnace is installed in a crawl space it must be
suspended from the floor joist or supported by a concrete
pad. Never install the furnace on the ground or allow it
to be exposed to water.
2" 2" 3/8"
ANGLE IRON
X X
(3 )
PLACES

Front Cover Pressure Switch Tube Location

Figure 4B
Figure 4C
Figure 5