Installation Manual
21
Side Cut-Out
12”
3”
Right side shown.
Acceptable
area for
drain hole.
in compliance with code requirements. In horizontal or
will allow the drain trap to be removed for cleaning. The
drain trap must be primed before initial furnace start up.
supplied furnace drain, it must be vented. An open tee
must be installed at a height no higher than the bottom of
the furnace collector box to prevent air conditioning con-
densate from backing up into the furnace, if the common
drain was blocked.
The trap and factory installed hoses remain as shipped.
The furnace drain may exit either the right or left side of
the furnace cabinet. Both sides of the cabinet have two
.875” diameter holes which can be used interchangeably
for drain and low voltage wiring purposes. If a higher drain
exit is needed, a .875” diameter hole may be added in the
1. Locate and Install the 45º pipe / hose drain coupling
with 1.25” clamp.
Installer selects right or left side drain
and installs this hose accordingly.
45 degree
barb-pipe
adapter
45 degree
barb-pipe
adapter
with 1” clamp.
trap.
1. Install the 45 degree pipe / hose drain coupling
a 17.5” cabinet; cut at line “C” for a 21” cabinet;
with 1.25” clamp.
with 1” clamp.
trap.