Down-Flow Application - Lennox Elite CBX32M-024 Installation Instructions Manual

PLUGGED
END
OPEN END FOR
CONDENSATION
DRAIN
COIL
\
COIL SHOWN IN UP-FLOW
POSITION FOR EASY
CONVERSION
DETAIL A
(DRAIN PAN)
ORIGINAL
PLUG
LOCATION
G
LOCATION
TOP CAP ROTATED TO
CORRECT POSITION
SUPPORT
t
TOP CAP
SCREWS
DETAIL B
(TOP CAP)
DETAIL C
TOP _ _ _ ALIGN HOLES WITH
CAP HOLES IN COIL END
_'_o _ PLATE.
90 _ / _
BEND BACK COIL END SEAL
DRAIN PAN [
Figure 4. Left-Hand
Step 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,
Step 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,
Step 8,, From the up-flow 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,
Step 9,. Knock out drain seal plate from access door,
Secure plate to cabinet front flange with screw
provided,
Step 10,, Flip access door and replace it on the unit.
Step 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,
Step 12,. If the unit is to be suspended, it must be
supported along the entire length of the cabinet
Discharge Modifications
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,
SECURING TAB ON
CABINET SUPPORT RAIL
\
HORIZONTAL DRIP SHIELD
_ HORIZONTAL
DRAIN PAN
Figure 5. Left-Hand Discharge Configuration
DOWN-FLOW APPLICATION
Use the following procedures to configure the unit for
down-flow operations:
WARNING
NOTE - If down-flow application is required, separately
order kit number 83M57 and install per kit's instructions,
Also, use metal or class I supply and return air plenums,
Page 6
505342M 05/08