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FIGURE 4
UNIT
Minimum Pitch
1” (25 mm) per 10'
(3 m) of line
MOUNTING
FRAME
CONDENSATE BOTTOM DRAIN CONNECTION
OPEN VENT
CAULK AROUND
CONDENSATE COUPLING
DRAIN PAN
Units are shipped with the drain coupling facing the front
of the unit. Condensate can be drained from the back or
bottom of the unit with the following modifications. The
unit can be installed in either downflow or horizontal air
discharge regardless of condensate drain location.
Rear Drain Connection
1- Open blower and heat access doors. See figure 5.
FIGURE 5
CONDENSATE
DRAIN MULLION
BLOWER
ACCESS DOOR
HEAT
ACCESS DOOR
FILTER
ACCESS DOOR
2- Remove six screws from filter access door. Refer to
figure 6.
REMOVE
THREE
SCREWS
(PER HINGE)
FIGURE 6
CONDENSATE
DRAIN MULLION
UNITS WITH HINGED PANELS
FILTER DOOR
3- Open filter access door hinges and carefully remove
door.
4- Remove eight screws holding condensate drain
mullion and remove mullion.
5- Lift front edge of the drain pan (to clear bottom drain
plug) and slide drain pan out of unit. See figure 7.
FIGURE 7
DRAIN PAN
6- Make sure the cap over the unit bottom drain hole is
secure.
7- Rotate the drain pan until the downward slope is
toward the back of the unit. Slide the drain pan back
into the unit. Be careful not to dislodge the cap over
the bottom drain hole.
8- From the back side of the unit, pull the drain pan
coupling through the rear condensate opening.
9- Replace the condensate drain mullion and reinstall
eight screws.
10- Reinstall filter door on hinges.
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