9
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.
This furnace may be installed in an upright position or
horizontal on either the left or right side panel. Do not
install this furnace on its back. For furnaces,
return air ductwork may be attached to the side panel(s)
and/or basepan. For furnaces, return
air ductwork must be attached to the basepan. For both
furnaces, return ductwork
must be attached to the basepan (top end of the blower
compartment).