Lennox CBX32MV-024/030 Manual

Service Literature
CBX32MV (HFC-410A) SERIES UNITS (iComfort
NOTICE
A thermostat is not included and must be ordered
separately.
D A Lennox iComfort
®
communicating applications.
D In
non-communicating
®
ComfortSense 7000 thermostat may be used, as well
as other non-communicating thermostats.
In all cases, setup is critical to ensure proper system
Operation.
Field wiring for both communicating and non-
communicating applications is illustrated in diagrams,
which begin on page 24.
WARNING
Improper installation, adjustment, alteration, service or
Maintenance can cause personal injury, loss of life, or
damage to property.
Installation and service must be performed by a licensed
professional installer (or equivalent) or a service agency.
CAUTION
As with any mechanical equipment, contact with sharp
sheet metal edges can result in personal injury. Take care
while handling this equipment and use protective cloth­
ing.
Revised April 7, 2015
thermostat must be used in
applications, the Lennox
Corp. 1005-L2

TABLE OF CONTENTS

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Model Identification
Blower Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electric Heat Data
Upflow/Downflow Unit Dimensions
Horizontal Lh/Rh Unit Dimensions
Installation Clearances
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation Requirements
Brazing Connections
Condensate Drain Requirements
Inspecting And Replacing Filters
Sealing The Unit
Field Control Wiring
Air Handler Control Button, Display And Jumpers
Configuring Unit
Error Code Recall Mode
Indoor Blower Test
Checkout Procedures
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cabinet Insulation
Sequence Of Operations
Unit Components
Electric Heat (ECB40)
This indoor unit is designed for installation with optional
field-installed electric heat and a matched remote outdoor
unit that is charged with HFC-410A refrigerant. These units,
designed for indoor installation in multiple positions, are
completely assembled for upflow and horizontal right-hand
discharge before being shipped from the factory.
All CBX32MV air handlers are equipped with a
factory-installed, internally mounted check expansion
valve (CTXV), which is suitable for use in HFC-410A
applications.
This air handler is compatible with the ComfortSense® 7000
non-communicating thermostat and non- communicating
outdoor units. In addition, newer model units have the
enhanced capability of communicating with iComfort
thermostats and compatible outdoor units using the Lennox
RSBus protocols.
NOTE - For downflow or horizontal left-hand air discharge,
certain field modifications are required.
This document provides information only on the
CBX32MV-XXX-230-6-06 and later which features the new
iComfortt-enabled hardware. Refer to Corp. 0206-L3 for
earlier model service related information.
Page 1
CBX32MV
®
-enabled)
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