Lennox CBA25UH User Manual

Page 6
HORIZONTAL DRIP SHIELD (-060 MODEL)
DOWN-FLOW RAIL FRONT EDGE OF HORIZONTAL
DRAIN PAN
FIGURE 5. Left-Hand Discharge Conguration
NOTE – Be very careful when reinstalling the screws into
the coil end plate engaging holes. Misaligned screws may
damage the coil.
9 - From the upow position, ip cabinet 90º to the
left and set into place. Replace blower assembly.
Secure coil in place by bending down the tab on the
cabinet support rail as illustrated.
10 - Install the horizontal shield (-060 model) on the
front edge of the horizontal drain pan as illustrated
in gure 5.
NOTE – For horizontal applications in high humidity ar-
eas, remove the downow rail closest to the drain pan. To
remove rail, remove screw from rail at back of unit and at
cabinet support rail. Remove downow rail then replace
screws. Also, seal around the exiting drain pipe, liquid and
suction lines to prevent inltration of humid air.
11 - Knock out drain seal plate from access door. Secure
plate to cabinet front ange with screw provided.
12 - Flip access door and replace it on the unit.
13 - Set unit so that it is sloped 1/4ʺ toward the drain
pan end of the unit. Connect return and supply air
plenums as required using sheet metal screws.
14 - If suspending the unit, it must be supported along the
entire length of the cabinet. If using chain or strap,
use a piece of angle iron or sheet metal attached
to the unit (either above or below) so that the full
length of the cabinet is supported. Use securing
screws no longer than 1/2ʺ to avoid damage to coil
or lter, as illustrated in gure 3. Connect return and
supply air plenums as required using sheet metal
screws.
DOWNFLOW APPLICATION
NOTE – If downow 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.
Use the installation instruction provided with the downow
kit.
IMPORTANT
If electric heat section with circuit breakers (ECB29/
ECB31) is installed in a CBA25UH unit in a downow
application, the circuit breakers must be rotated 180°
to the UP position. See ECB29/ECB31 installation
instructions for more details.

Lennox CBA25UH Specifications

General

Brand	Lennox
Model	CBA25UH
Category	Air Handlers
Language	English