Lennox CBX32M Elite Series Installation Instructions Manual page 5

ANGLE IRON OR
SHEET METAL
1/2 IN.
SCREWS
MAX.
FRONT VIEW
Figure 3. Suspending Horizontal Unit
CAUTION
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 RIGHT−HAND DISCHARGE
APPLICATION
Use the following procedures to configure the unit for
horizontal right−hand discharge operations:
NOTE − For horizontal applications, an secondary drain
pan is recommended. Refer to local codes.
1. Remove access panels. Remove corrugated padding
from the space between the blower and coil assembly.
2. No further adjustment is necessary. Set unit so that it is
sloped 1/4 inch toward the drain pan end of the unit as
illustrate in figure 2 on page 4.
3. If the unit is to be suspended, it must be supported
along the entire length of the cabinet as illustrated in
figure 3. If a strap is used, attach a piece of angle iron
or sheet metal to the unit (either above or below) so
that the full length of the cabinet is supported. Use
securing screws which are no longer than 1/2 inch to
avoid damaging the coil or filter. Connect the return
and supply air plenums as required using sheet metal
screws.
HORIZONTAL LEFT−HAND DISCHARGE
APPLICATION
Use the following procedures to configure the unit for
horizontal left−hand discharge operations:
NOTE − For horizontal applications, an secondary drain
pan is recommended. Refer to local codes.
Remove access panels. Remove corrugated padding from
the space between the blower and coil assembly before
operation.
1. Remove coil assembly from unit and remove the
horizontal drain pan as illustrated in figure 4, detail A
on page 6.
ELECTRICAL INLET
CLEARANCE 4 IN. (102 MM)
END VIEW
Page 5
2. Remove 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 installa-
tion that may plug up the drain opening.
3. Rotate the drain pan 180° front to back and install it on
the opposite side of coil.
4. Remove screws from top cap. Remove horizontal drip
shield screw located in the center of the back coil end
seal as illustrated in figure 4, details B and C on page
6.
5. Rotate horizontal drip shield 180° front to back.
6. Remove plastic plug from left hole on coil front end
seal and reinstall plug in back hole. Reinstall horizontal
drip shield screw in front coil end seal. Drip shield
should drain downward into horizontal drain pan inside
coil.
7. Rotate top cap 180° front to back and align with
unused screw holes. Holes must align with front and
back coil end plates. Note that top cap has a 45° bend
on one side and 90° bend on the other. The 90° bend
must be on the same side as the horizontal drain pan
as illustrated in figure 4 on page 6.
NOTE − Be very careful when you reinstall the screws into
coil end plate engaging holes. Misaligned screws may
damage the coil.
8. From the upflow position, flip cabinet 90° to the left and
set into place. Replace blower assembly. Secure coil
in place by bending down tab on cabinet support rail
as illustrated in figure 5 on page 6.
NOTE − For horizontal applications in high humidity
areas, seal around the exiting drain pipe, liquid line and
suction line to prevent infiltration of humid air.
9. Knock out drain seal plate from access door. Secure
plate to cabinet front flange with screw provided.
10. Flip access door and replace it on the unit.
11. Set unit so that it is sloped 1/4 inch toward the drain
pan end of the unit. Connect return and supply air
plenums as required using sheet metal screws.
12. If the unit is to be suspended, it must be supported
along the entire length of the cabinet as illustrated in
figure 3 on page 5. If using a chain or strap, attach a
piece of angle iron or sheet metal to the unit (either
above or below the unit), so that the full length of the
cabinet is supported. Use securing screws which are
no longer than 1/2 inch to avoid damaging the coil or
filter. Use sheet metal screws to connect the return
and supply air plenums.
CBX32M SERIES