Instruction manual
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5. Cut 17 3/4 inches from the long end of Hose B and
discard.
6. Secure remaining end of Hose B to exposed end of
Tube 1 with a green hose clamp. Route hose to front
right down side panel grommet holes.
7. Cut 5 1/2 inches straight length from the long end of
each Tube 2.
8. Insert approximately one inch of each Tube 2 through
the right down side panel grommet holes. Secure
tubes to Hose A and Hose B using green hose clamps.
NOTE: Ensure hoses and tubes maintain a downward
slope for proper drainage and are not kinked or bound.
For details concerning mounting of the drain trap, refer to
Section X, Condensate Drain Lines and Drain Trap -
Upright Drain Trap Mounting.
Left Side Down
Horizontal installations with the left side panel down will
require drain hoses to be connected to the left side front
cover drain port and the induced draft blower drain port.
NOTE: On upflow models, relocation of the front cover
pressure switch hose is required.
1. Remove the rubber plug from the coil front cover left
(down) side drain port.
2.
Upflow furnaces
Relocate the front cover pressure switch hose connec-
tion from the right side (as shipped) pressure tap to the
left (down) side tap. The pressure switch hose must be
connected to the down side to guard against blocked
drain conditions. Cut hose to appropriate length to
minimize sagging. Plug right (unused) pressure tap
with plug removed from left side.
3. Secure Hose A to front cover drain port with a red hose
clamp. Route hose to rear left down side panel grom-
met holes. NOTE: For left side drainage, grommets
must be relocated to left side panel.
LEFT SIDE
PANEL
FRONT COVER
DRAIN PORT
SIDE PANEL
GROMMET
HOLES
DRAIN TRAP
TUBE(S) 2
GREEN HOSE
CLAMPS
(3 PLACES)
HOSE A
HOSE B
INDUCED
DRAFT BLOWER
DRAIN PORT
FRONT
COVER
PRESSURE
TAP
RED HOSE CLAMP
Horizontal Connections
Left Side Down
(Upflow Shown, Counterflow Similar)
2. Secure drain trap to side panel at the mounting holes
(dimples or crosshairs on Counterflow models) lo-
cated below the grommet drain holes.
3. Attach PVC drain line to drain trap outlet with either a
90° elbow or coupling.
NOTE: Ensure hoses and tubes maintain a downward
slope for proper drainage and that they are not kinked or
binding.
HORIZONTAL INSTALLATIONS
Right Side Down
Horizontal installations with the right side down require that
the drain hoses be connected to the right side front cover
drain port and the rubber elbow drain port.
NOTE: On counterflow models, relocation of the front
cover pressure switch hose is required.
Make connections as follows:
1. Remove the rubber plug from the coil front cover drain
port.
Counterflow furnaces
Relocate the front cover pressure switch hose connec-
tion from the left side pressure tap to the right (down)
side tap. The pressure switch hose must be connected
to the down side to guard against blocked drain condi-
tions. Cut hose to appropriate length to minimize
sagging. Plug left (unused) pressure tap with plug
removed from right side.
2. Secure Hose A to front cover drain tap with a red hose
clamp. Route hose to rear right (down) side panel
grommet holes.
HOSE A
HOSE B
SIDE PANEL
GROMMET
HOLES
GREEN
HOSE
CLAMP
(3 PLACES)
TUBE 1
RUBBER
ELBOW
RIGHT
SIDE
PANEL
DRAIN TRAP
TUBES 2
RUBBER ELBOW
DRAIN PORT
FRONT COVER
DRAIN PORT
FRONT
COVER
PRESSURE
TAP
RED HOSE
CLAMP
RED HOSE
CLAMP
Horizontal Connections
Right Side Down
(Upflow Shown, Counterflow Similar)
3. Cut 1/4 inch from the end of the drain port on the rubber
elbow and discard.
4. Insert Tube 1 into rubber elbow drain port and secure
with a red hose clamp. Angle tube outward toward
front of furnace.










