Lennox Lennox Air Handler - Manual
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Table of Contents:
- Page 3 – Requirements; WARNING; NOTES —; Installation Clearances; NON-DUCTED RETURN CLOSET INSTALLATION
- Page 4 – Installation; IMPORTANT
- Page 5 – RIGHT-HAND AIR DISCHARGE; Figure 4. Remove Main Drain Pan Mounting Bracket; Figure 5. Remove Horizontal and Main Drain Pan
- Page 6 – Condensate Drain; Figure 9. Typical Main and Overflow Drain
- Page 7 – Duct System and Filters; Model
- Page 8 – INSTALLING DUCT SYSTEM; Connecting Refrigerant Lines; NOTE — Do not use soft solder.; Sealing the Unit
- Page 9 – Electrical Connections; Electric Shock Hazard.; USE COPPER CONDUCTORS ONLY; GND; Using the wiring diagram located on the unit access
- Page 10 – Airflow — Cooling Blower Speed; CHANGE BLOWER SPEED; Locate pin number 2 on the blower relay. Two black
- Page 11 – CHANGING BLOWER SPEED; Figure 13. Changing Blower Speed; All data given while air handler is operating with a dry DX coil.
- Page 12 – Motor ramps down to stop.
- Page 13 – on the thermostat. They may also be; Maintenance; Cabinet Insulation; REPAIRING DAMAGED INSULATION
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
. . . . . . . . . . . . . . . . . . . . . .
CBX25UH Series Units
. . . . . . . . . . . . . . . . . . . . . . . . .
Requirements
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation Clearances
. . . . . . . . . . . . . . . . . . . . . . . . .
Installation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Condensate Drain
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Duct System and Filters
. . . . . . . . . . . . . . . . . . . . . . . .
Connecting Refrigerant Lines
. . . . . . . . . . . . . . . . . . .
Sealing the Unit
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Connections
. . . . . . . . . . . . . . . . . . . . . . . . .
Airflow - Cooling Blower Speed
. . . . . . . . . . . . . . . . . .
Check-Out Procedures
. . . . . . . . . . . . . . . . . . . . . . . . .
Operation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cabinet Insulation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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.
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Summary
Page 3 CBX25UH SERIES Requirements WARNING Excessive Weight Hazard - Use two or more peoplewhen moving and installing the unit. Failure to do so canresult in back or other type of injury. IMPORTANT The CBX25UH units are designed to match, and must beused with, outdoor units as rated. The indoor sect...
Page 4 If a return air plenum is used, the return air grille should beimmediately in front of the opening in the plenum to allowfor the free flow of return air. When not installed in front ofthe opening, there must be adequate clearance around theair handler to allow for the free flow of return air....
Page 5 CBX25UH SERIES 5. If the unit is suspended, the entire length of the cabinet must be supported. If you use a chain or strap, use apiece of angle iron or sheet metal attached to the unit(either above or below) to support the length of thecabinet. Use securing screws no longer than 1/2 inchto a...
