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CB29M/CB30M SERIES
Horizontal Left−Hand Discharge Application
NOTE − For horizontal applications, an auxiliary drain pan
is recommended. Refer to local codes.
Remove the access panels and the corrugated padding
from the space between the blower and coil assembly be-
fore operation. Make the following modifications:
1. (See Detail A in figure 4.) Pull coil assembly from unit.
Pull off the horizontal drain pan.
2. Remove drain plugs from back drain holes on horizon-
tal drain pan and re−install them on front holes.
3. Rotate drain pan 180° front to back and install it on the
opposite side of coil.
ORIGINAL
PLUG
LOCATION
NEW PLUG
LOCATION
PLUGGED
END
OPEN END FOR
CONDENSATION
DRAIN
COIL
ASSEMBLY
Left-Hand Discharge Modifications
Figure 4
90
_
BEND
CABINET
SUPPORT
Coil shown in upflow position for easy conversion
TOP CAP
SCREWS
TOP CAP ROTATED TO
CORRECT POSITION
BACK COIL
END SEAL
TOP
CAP
90
_
BEND
ALIGN HOLES
WITH HOLES
IN COIL END
PLATE.
DRAIN PAN
Detail A
(DRAIN
PAN)
Detail B
(TOP CAP)
Detail C
4. (See Detail B and C in figure 4.) Remove screws from
top cap. Remove horizontal drip shield screw located
in the center of the back coil end seal.
5. Rotate horizontal drip shield 180° front to back.
6. Remove plastic plug from left hole on coil front end
seal and re−install plug in back hole. Re−install horizon-
tal 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 un-
used 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.
See figure 4.
NOTE − Use extreme care when re−installing screws
into coil end plate engaging holes. Misaligned screws
may damage coil.
8. (See figure 5.) From the upflow position, flip cabinet
90° to the left and set into place. Replace coil assem-
bly. Secure coil in place by bending down tab on cabi-
net support rail.
Figure 5
Left−Hand Discharge Configuration
Horizontal
Drip Shield
Horizontal
Drain Pan
Securing Tab on
Cabinet Support Rail
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 ple-
nums 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 (see figure 3). 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.
