Lennox Elite CB30U Series

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,B,2007 Lennox IndustrIes Ins.
Da{las, Texas, USA
X_ WARNING
INSTALLATION
INSTRUCTIONS
Elite® Series CB30U Units
AIR HANDLER F[_ Technical
505,340M J_LL Publications
07/07 Litho U.S.A.
Supersedes 504,720M
_, CAUTION
IMPORTANT
_, IMPORTANT
CB30U Up-flow Unit Dimensions ................ 2
CB30U Up-flow Side Return Air Filter Adapter ..... 2
General Information ............................ 3
Shipping and Packing List ...................... 3
Requirements ................................. 3
Installing the Unit .............................. 3
Brazing Connections ........................... 4
Installing the Condensate Drain .................. 5
Inspecting and Replacing Filters ................. 5
Sealing the Unit ............................... 6
Adjusting the Blower Speed .................... 6
Making Electrical Connections ................... 8
Repairing or Replacing Cabinet Insulation ......... 12
RETAIN THESE INSTRUCTIONS FOR FUTURE REFERENCE
CHECK FOR AND REMOVE THE FOLLOWING ITEMS BEFORE OPERATING UNIT.
BLOWER MOTOR
SHIPPING BOLT
TOP CAP SHIPPING BRACKET (REPLACE
SCREWS IN TOP CAP AFTER REMOVAL)
C
BLOWER MOTOR SHIPPING
BRACKET
D
BLOWER HOUSING SUPPORT PAD
B
@..
REFRIGERANT LINE CAPS [SEE BRAZING
CONNECTION ON PAGE 4]
E
07/07
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Lennox Elite CB30U Series Specifications

General

Model	CB30U
Type	Air Handler
Series	Elite
Airflow Capacity	Up to 2000 CFM
Refrigerant	R-410A
Cooling Capacity	Up to 5 tons (60, 000 BTU/h)
Dimensions	Varies by model
Weight	Varies by model
Configuration	Horizontal
Voltage	208/230V
Motor Type	ECM
Cabinet Type	Steel
Filter Type	Standard
Sound Level	Varies by model

Summary

CB30 U Up-flow Unit Dimensions

CB30 U Up-Flow Side Return Air Filter Adapter

General Information

Shipping and Packing List

Requirements

Installing the Unit

Disassemble and Reassemble Air Handler Units

Procedures for separating and joining cabinet sections for easier handling and installation.

Up-Flow Application Configuration

Steps to set up the unit for up-flow operation, including plenum connection and stand placement.

Side Return Air Applications

Brazing Connections

Installing the Condensate Drain

Inspecting and Replacing Filters

Sealing the Unit

Adjusting Blower Speed

Minimum Blower Speeds with Electric Heaters

Specifies minimum blower speeds when electric heaters are used with the unit.

Air Volume Adjustment

Guide on selecting blower speed by adjusting motor taps for optimal air volume.

Making Electrical Connections

Typical Wiring Diagrams

Repairing or Replacing Cabinet Insulation

Repairing Damaged Insulation

Instructions on how to fix or replace damaged insulation to maintain unit performance and prevent issues.