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8. Route Hose B to the front right (down) side panel grommet
holes.
9. Cut 5¹⁄₂" (14 cm) straight length from the long end of each
Tube 2.
Alternate Horizontal Upflow Connections—Right Side
Down (Counterflow Similar)
A
F
M
L
I
K
J
A. Front cover drain port
B. Front cover pressure tap
C. Right side panel
D. Rubber elbow
E. Rubber elbow drain port
F. Red hose clamps
G. Tube 1
10. Insert approximately 1" (2.5 cm) of each Tube 2 through the
right (down) side panel grommet holes.
11. Secure the tubes to Hose A and Hose B using the green hose
clamps.
12. Ensure that the hoses and tubes maintain a downward slope
for proper drainage and are not kinked or bound.
13. See "Upright Drain Trap Mounting—Left or Right Side Panel"
for mounting of the drain trap.
Horizontal Installations—Left Side Down
Horizontal installations with the left side panel down will require
the drain hoses to be connected to the left side front cover drain
port and the side drain port on the rubber elbow.
1. Remove the rubber plug from the coil front cover left (down)
side drain port.
2. Relocate the front cover pressure switch hose connection
from the right side (as shipped) pressure tap to the left (down)
side tap.
NOTE: The pressure switch hose must be connected to the
down side to guard against blocked drain conditions. Cut the
hose to the appropriate length to minimize sagging. Plug the
right (unused) pressure tap with the rubber plug removed
from left side.
3. Secure Hose A to the front cover drain port with a red hose
clamp.
4. Route Hose A to the rear left (down) side panel grommet
holes.
NOTE: For left side drainage, grommets must be relocated to the
left side panel.
B
D
C
I
H
G
F
E
H. Green hose clamps (3)
I. Side panel grommet holes
J. Drain trap
K. Tubes 2
L. Hose B
M. Hose A
Alternate Horizontal Upflow Connections—Left Side Down
(Counterflow Similar)
J
I
A. Induced draft blower drain port
B. Hose B
C. Green hose clamps (3)
D. Side panel grommet holes
E. Tubes 2
5. Remove the rubber cap from the side drain port on the rubber
elbow.
6. Secure the short end of Hose B to the rubber elbow side
drain port using a green hose clamp.
NOTES:
For left side drainage, route Hose B to the far left (down)
side panel grommet holes.
Horizontal left side connections (when using a new side
port drain elbow) does not require connecting a hose to
the induced draft blower housing.
7. Cut 5¹⁄₂" (14 cm) straight length from the long end of each
Tube 2.
8. Insert approximately 1" (2.5 cm) of each Tube 2 through the
left side panel grommet hole.
9. Secure the tubes to Hose A and Hose B with the green hose
clamps.
NOTE: Tube must reach bottom of trap.
10. Ensure that the hoses and tubes maintain a downward slope
for proper drainage and are not kinked or bound.
11. See "Upright Drain Trap Mounting—Left or Right Side Panel"
for mounting of the drain trap.
Horizontal Drain Trap Mounting—Left or Right Side
Panel
1. Position the drain trap against the side panel with the drain
tubes inserted into the trap.
NOTE: The trap may be orientated with the outlet facing
either the furnace's top cover or base pan.
2. Secure the drain trap to the side panel at the dimples or
crosshairs located on either side of the grommet drain holes.
3. Confirm that the tubes reach the bottom of the drain trap and
that all of the hoses maintain a downward slope and are not
kinked or binding.
4. Attach the PVC drain line to the drain trap outlet with either a
90° elbow or coupling.
A
B
C
D
E
H
G
C
D
E
F
F. Drain trap
G. Hose A
H. Red hose clamps
I. Front cover drain port
J. Left side panel
25
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