Lennox CBA27UHE-036 Installation Instructions Manual

©2017 Lennox Industries Inc.
Dallas, Texas, USA
THIS MANUAL MUST BE LEFT WITH THE
HOMEOWNER FOR FUTURE REFERENCE
WARNING
This product contains a chemical known to the State
of California to cause cancer, birth defects, or other
reproductive harm.
WARNING
Improper installation, adjustment, alteration, service
or maintenance can cause property damage, personal
injury or loss of life. Installation and service must be
performed by a licensed professional HVAC installer or
equivalent, service agency, or the gas supplier.
IMPORTANT
The Clean Air Act of 1990 bans the intentional venting of
refrigerant (CFCs, HCFCs and HFCs) as of July 1, 1992.
Approved methods of recovery, recycling or reclaiming
must be followed. Fines and/or incarceration may be
levied for noncompliance.
IMPORTANT: Special procedures are required for cleaning the all-aluminum coil in this unit. See page 15 in this instruction
for information.
IMPORTANT INFORMATION FOR INSTALLER
CHECK FOR AND REMOVE THESE ITEMS BEFORE OPERATING UNIT.
BLOWER HOUSING
SUPPORT PAD
HORIZONTAL DRAIN PAN (SEE PAGES 4
AND 6)
D
REFRIGERANT LINE PLUGS
(SEE PAGE 6)
INSTALLATION
INSTRUCTIONS
Elite
CBA27UHE Air Handler Units
MULTI-POSITION AIR HANDLERS
507674-01
3/2017

Table of Contents

CBA27UHE Upflow and Downflow Unit Dimensions .....2
CBA27UHE Horizontal Left- and Right-Hand Discharge
Unit Dimensions .............................................................3
General Information .......................................................4
Shipping and Packing List .............................................4
Requirements ................................................................4
Installing the Unit ...........................................................4
Brazing Connections .....................................................6
Installing the Condensate Drain ....................................7
Inspecting and Replacing Filters ...................................8
Sealing the Unit .............................................................8
Measuring Static Pressure ............................................9
Adjusting the Blower Speed ..........................................9
Making Electrical Connections ....................................12
Repairing or Replacing Cabinet Insulation ..................15
Homeowner Maintenance ............................................15
Check-Out Procedures ................................................16
TOP CAP SHIPPING
BRACKET (REPLACE
SCREWS IN TOP CAP
AFTER REMOVAL)
DRIP SHIELD. (USED FOR -060 UNITS HORIZONTAL
APPLICATIONS ONLY.) (SEE PAGE 5.) SHOWN
INSTALLED ON DRAIN PAN IN -060 UNIT.
Page 1
Series
®
D