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RIGHT-HAND DISCHARGE
1 - Determine which plugs are required for drain line
connections.
2 - With access door removed, remove drain line plugs
to install drain lines.
3 - Set unit so that it is sloped toward the upflow drain
pan end of the unit and level from front to back of
unit (see figure 7).
4 - The horizontal configuration is shown in figure 2.
Drains
RIGHT HAND DRAINS
FIGURE 2. Right-Hand Discharge Configuration
5 - If the unit is suspended, the entire length of the
cabinet must be supported. If you use a chain or
strap, use a piece of angle iron or sheet metal
attached to the unit (either above or below) to
support the length of the cabinet. Use securing
screws no longer than 1/2 inch to avoid damaging
the coil or filter. See figure 3. Use sheet metal
screws to connect the return and supply air plenums
as required.
ANGLE IRON OR SHEET
METAL
MAXIMUM 1/2"
LONG SCREW
AIR FLOW
FRONT
V
E I
W
FIGURE 3. Suspending Horizontal Unit
LEFT-HAND AIR DISCHARGE
For horizontal left-hand air discharge, the following field
modifications are required. Reference sticker on coil top
plate.
1 - Remove access panels and the corrugated padding
between the blower and coil assembly. Discard the
corrugated padding.
2 - Pull the coil assembly from unit. Pull off the
horizontal drain pan.
3 - Remove the drain plugs from back drain holes on
horizontal drain pan and reinstall them on front holes.
AIR FLOW
PLUGS
E
ANCE 4 IN. (102 MM)
E
N
D
V
E I
W
After removal of drain pan plug(s), check drain hole(s)
to verify that drain opening is fully open and free of any
debris. Also check to make sure that no debris has fallen
into the drain pan during installation that may plug up the
drain opening.
4 - Rotate drain pan 180º front-to-back and install it on
the opposite side of the coil.
5 - Remove screws from top cap.
6 - Remove plastic plug from left hole on coil front end
seal and reinstall plug in back hole.
CABINET
SUPPORT
DRAIN PAN
REINSTALLED
HERE
———— DRAIN PLUGS ————
REINSTALLED HERE
COIL SHOWN IN UPLOAD POSITION FOR EASY CONVERSION
TOP
CAP
90º
BEND
FIGURE 4. Field Modification for
Left-Hand Discharge
7 - Rotate top cap 180º front-to-back and align with
unused screw holes. Holes must align with front
and back coil end plates. The top cap has a 45º
bend on one side and a 90º bend on the other.
The 90º bend must be on the same side as the
horizontal drain pan as illustrated in figure 4.
Page 6
IMPORTANT
TOP CAP ROTATED TO
CORRECT POSITION
TOP CAP SCREWS
90º
BEND
REMOVED FROM HERE
ALIGN HOLES WITH
HOLES IN COIL END
PLATE. STARTING WITH
THE ROUND HOLES ON
THIS END.
BACK COIL END SEAL
DRAIN PAN
SHIPPING
LOCATION
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