Air Handler; Up-Flow Application - Lennox Elite CBX32M-024 Installation Instructions Manual

,&,WARNING
CBX32M units are factory-configured for up-flow or
horizontal right-hand discharge installation. For down-flow
or horizontal left-hand discharge, some field modification
is required.
WARNING
IMPORTANT
The Lennox Elite* Series CBX32M air handler units are
designed for installation with a matched remote outdoor
unit that is charged with HFC-410A refrigerant and optional
field-installed electric heat, The air handler units are for
indoor installation only.
These instructions are intended as a general guide and do
not supersede local or national codes in any way. Consult
authorities having jurisdiction before installation. Check
equipment for shipping damage; if found, immediately
report damage to the last carrier.
Package 1 of 1 contains the following:
1--Assembled air handler unit
In addition to conforming to manufacturer's installation
instructions and local municipal building codes, installation
of Lennox air handler units (with or without optional electric
heat), shall conform with the following National Fire
Protection Association (NFPA) standards:
• NFPA No. 90A - Standard for Installation of Air
Conditioning and Ventilation Systems
• NFPA No. 90B - Standard for Installation d Residence
Type Warm Air Heating and Air Conditioning Systems
This unit is approved for installation clearance to
combustible material as stated on the unit rating plate,
Accessibility and service clearances must take
precedence over combustible material clearances.
DISASSEMBLE AND REASSEMBLE AIR HANDLER
UNIT
The CBX32M air handler unit consists of two sections
which are shipped assembled from the factory, If
necessary, the unit may be disassembled to facilitate
setting the unit, Follow the steps below:
To disassemble:
Step 1_ Remove access panels.
Step 2.. Remove both blower and coil assemblies. This
will lighten the cabinet for lifting,
Step 3.. Remove one screw from the left and right posts
inside the unit. Remove one screw from each
side on the back of the unit, Unit sections will
now separate,
To reassemble:
Step 1.. Align cabinet sections together,
Step 2,, Reinstall screws,
Step 3.. Replace blower and coil assemblies.
Step 4,, Replace access panel.
UP-FLOW APPLICATION
Use the following procedures to configure the unit for
up-flow operations:
Step 1.. Remove access panels. Remove corrugated
padding from the space between the blower and
coil assemblies.
Step 2.. The horizontal drain pan must be removed when
the coil blower is installed in the up-flow position,
Removing horizontal drain pain will allow proper
airflow and increase efficiency.
Step 3.. Place unit in desired location. Make sure that
unit is level, Connect return and supply air
plenums as required using sheet metal screws
as illustrated in figure 1,
Step 4.. Install units which have no return air plenum on
a mounting stand that is at least 14" from the
505342M 05/08
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