Lennox CBX25UH Series, Installation Instructions Manual

Page: 1 / 16

10/2012 506757-01
(0659371-80)
*2P102012* *P506757-01*
Page 1
E
2012 Lennox Industries Inc.
Dallas, Texas, USA
THIS MANUAL MUST BE LEFT WITH THE
HOMEOWNER FOR FUTURE REFERENCE
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.
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.
WARNING
The State of California has determined that this product
may contain or produce a chemical or chemicals, in very
low doses, which may cause serious illness or death. It
may also cause cancer, birth defects, or reproductive
harm.
INSTALLATION
INSTRUCTIONS
Merit
®
CBX25UH Series
Units
AIR HANDLERS
506757-01 (0659371-80)
10/2012
Table of Contents
Shipping and Packing List 1 . . . . . . . . . . . . . . . . . . . . . .
CBX25UH Series Units 1 . . . . . . . . . . . . . . . . . . . . . . . . .
Requirements 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation Clearances 3 . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Condensate Drain 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Duct System and Filters 7 . . . . . . . . . . . . . . . . . . . . . . . .
Connecting Refrigerant Lines 8 . . . . . . . . . . . . . . . . . . .
Sealing the Unit 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Connections 9 . . . . . . . . . . . . . . . . . . . . . . . . .
Airflow - Cooling Blower Speed 10 . . . . . . . . . . . . . . . . . .
Check-Out Procedures 12 . . . . . . . . . . . . . . . . . . . . . . . . .
Operation 12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance 13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cabinet Insulation 13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shipping and Packing List
Package 1 of 1 contains the following:
1 - Assembled air handler unit for upflow or horizontal air
discharge application (includes upflow and horizontal
drain pans and
pre-installed air filter ).
Check equipment for shipping damage. If found,
immediately report damage to the last carrier. Check the
unit rating plate to confirm that delivered unit matches
order.
General
The CBX25UH air handler is designed for indoor
installation only. As shipped, the unit is ready for
installation in either upflow, horizontal left-hand and
right-hand air discharge applications. Electric heat, down
flow air discharge application kits, air filters and other
various accessories are available and listed in the
CBX25UH Product Specification bulletin for ordering .
All units come with a factory installed check/expansion
valve.
Litho U.S.A.