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CBX27UH SERIES
1. Before operating the unit, remove access panels and
the horizontal drip shield (−060 model) and the
corrugated padding between the blower and coil
assembly. Discard the corrugated padding.
2. Install the horizontal shield on the front edge of the
horizontal drain pan as illustrated in figure 2.
3. No further adjustment is necessary. Set unit so that it is
sloped 1/4" towards the drain pan end of the unit.
4. 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" to
avoid damaging the coil or filter as illustrated in figure
3. Use sheet metal screws to connect the return and
supply air plenums as required.
No Adjustment Is Necessary
HORIZONTAL DRIP SHIELD (−060 MODELS)
UPLOAD / DOWN−FLOW
DRAIN PAN
HORIZONTAL DRAIN
PAN
DOWN−FLOW RAIL
Figure 2. Right−Hand Discharge Configuration
HORIZONTAL RIGHT−HAND DISCHARGE
APPLICATION IN HIGH HUMIDITY AREAS
For horizontal applications in high humidity areas remove
the down−flow rail closest to the drain pan.
To remove rail:
1. Remove the screws from the rail at the back of unit and
at the cabinet support rail.
2. Remove the down−flow rail then replace screws.
3. Seal around the exiting drain pipe, liquid line, and
suction line to prevent humid air from infiltrating into
the unit.
FRONT VIEW END VIEW
ANGLE IRON OR
SHEET METAL
electrical inlet clearance 4 in.
(102 mm)
1/2 in. Screws Maximum
Figure 3. Suspending Horizontal Unit
IMPORTANT
When removing the coil, there is possible danger of
equipment damage and personal injury. Be careful when
removing the coil assembly from a unit installed in right−
or left−hand applications. The coil may tip into the drain
pan once it is clear of the cabinet. Support the coil when
removing it.
HORIZONTAL LEFT−HAND DISCHARGE
APPLICATION
NOTE − For horizontal applications, a secondary drain pan
is recommended. Refer to local codes.
90º
BEND
CABINET
SUPPORT
Coil shown in upload position for easy conversion
TOP CAP SCREWS
DRAIN PAN
reinstalled here
DRIP
SHIELD
DRAIN PAN
SHIPPING
LOCATION
TOP CAP ROTATED TO
CORRECT POSITION
DRAIN plugs
reinstalled here removed from here
back coil end
seal
TOP
CAP
90º
BEND
Align holes
with holes in
coil end plate.
Figure 4. Field Modification for Left−Hand Discharge
Use the following procedures to configure the unit for
horizontal left−hand discharge operations:
1. Before operating the unit, remove access panels and
the horizontal drip shield (−060 model) 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.
IMPORTANT
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.
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