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REVERSING THE TRAP
UPFLOW UNITS
The trap may be moved to the right
side for right side drainage. Open the
knockout for the drain on the right
side of the cabinet. Remove the
bracket holding the trap from the left
side. Seal the left side drain hole with
a plug provided in the cloth bag with
the furnace. Position the mounting
bracket and trap so that the drain
elbow is centered in the hole on
the right. See Figure 29.
Drill two holes in the cabinet to mount
the bracket. Mount the trap and
bracket to the right side with the drain
elbow pointing through the knockout.
1
Connect the
/
-in. pipe and tee as
2
noted above. Route the drain hoses
behind the control box, cut to the
appropriate length, and connect to the
trap with hose clamps.
IMPORTANT: DO NOT ALLOW ANY
SAGS OR KINKS IN THE HOSES.
This prevents proper condensate
flow.
IMPORTANT: Do not connect into
a common drain line with an air
conditioner evaporator coil drain
located above the furnace. A blocked
or restricted drain line can result in
overflow of the coil pan and negate
the furnace blocked drain shutoff
control.
DOWNFLOW UNITS
To convert to left side drainage, first
remove the drainage hoses from the
trap. Remove the trap from its
mounting bracket, rotate it 180°, and
mount in place with the drainage
elbow pointing to the left. Reattach
the drain hoses. Remove the plastic
drainage knockout from the left side.
See Figure 30.
IMPORTANT: When changing to the
left side, interchange the rubber
bushing on the right side with the hole
plug on the left side. The hole plug
must be in place to assure that the
control compartment is sealed.
1
A length of
/
-in. PVC pipe is
2
provided for left hand drainage. Glue
one end of the pipe to the elbow in
the trap. Cut the pipe so that it
extends through the left cabinet side
1
one inch. Connect the
/
-in. tee to the
2
pipe with a riser and drain tube as
listed above. Use the plastic plug
from the left side drainage knockout
to seal the right side drainage
knockout.
30
30
IMPORTANT: Do not connect into
a common drain line with an air
conditioner evaporator coil drain
located above the furnace. A blocked
or restricted drain line can result in
overflow of the coil pan and negate
the furnace blocked drain shutoff
control.
FIGURE 29
UPFLOW OPPOSITE SIDE CONDENSATE TRAP CONNECTION
PROPER DRAIN SLOPE REQUIRED
(NO KINKS ALLOWED)
IFC MOUNTING
PLATE
FIGURE 30
DOWNFLOW OPPOSITE SIDE CONDENSATE TRAP CONNECTION
DRAIN
RISER
DRAIN
EXTENSION
TEE
TO FLOOR
DRAIN OR
CONDENSATE PUMP
FILLING THE TRAP
FILL THE TRAP ASSEMBLY WITH
WATER BEFORE OPERATING THE
FURNACE. Do this by removing the
drain hose from the trap or from the
connection to the secondary coil.
Pour about a cup of water into the
vent trap. Any excess water flows into
the house drain when the trap is full.
CONDENSATE TRAP
CONDENSATE TRAP
CUT DRAIN HOSES AS
REQUIRED
AND CONNECT TO
INLETS ON TOP
OF CONDENSATE
TRAP
DRAIN
RISER
TEE
DRAIN
EXTENSION
TO FLOOR
DRAIN
I394
ROTATE
TRAP 180°
AND INSTALL
RIGID PIPE
(SUPPLIED)
FROM
ELBOW TO
OPPOSITE
SIDE OF
JACKET
I394
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