Lennox CBX40UHV User Manual

CBX40UHV Variable Speed Air Handler

Home Comfort Systems

CBX40UHV

The quietest and most efficient air handler
you can buy.*

Dave Lennox Signature® Collection Variable Speed Air Handler

Offers greater cooling

™

efficiency when matched with
specific air conditioners or
heat pumps

More efficient operation
reduces electric consumption
and conserves resources

Factory-installed MERV 16
media filter provides healthier
indoor air and reduces the
space required for installation

Emits no ozone into the air

Slow-ramping heating-mode
blower offers greater comfort,
eliminating uncomfortable
“cold blow”

Humidity control maximizes
comfort

SilentComfort™ technology

Innovation never felt so good.

reduces noise

Every air conditioner or heat pump needs an indoor unit to blow

conditioned air through the home, and there are several to choose from.

Typical air handlers simply circulate heated or cooled air through the

air duct system. The CBX40UHV does this plus so much more.

THE QUIETEST AND MOST EFFICIENT AIR HANDLER
YOU CAN BUY.*

In heating mode, the CBX40UHV increases airflow slowly, virtually eliminating

the “cold blow” common with some air handlers. Low-speed operation helps

keep sound to a minimum. What’s more, a built-in filtration system helps clean

the air of allergy-aggravating particles. This innovative air handler delivers

comfort that’s efficient, quiet and healthy—everything you expect from Lennox.

Comfortable

Blowing away the competition

The CBX40UHV slowly ramps up,

instead of starting at full speed, to

allow the coil temperature to get

hot before air exits the registers. By

slowly ramping up the motor, the

heat pump and the electric heat

strips can “pre-heat” to avoid a

drafty feeling in the winter.

Healthy

Helping everyone breathe easier

Featuring a factory-installed MERV 16

filtration system, the CBX40UHV

provides more effective filtration for

ideal air quality and comfort. This

extremely compact air handler is

designed with high-efficiency

filtration in mind to provide an

optimum home environment.

WARRANTY

10-year limited warranty
on covered components.

2

TEMPERATURE SWING
COMPARISON

Single-speed motor

Variable speed motor

* Based on sound pressure levels during operation of CBX40UHV-36 with factory-installed MERV 16

Precision Pleat™ media filter and leading competitive three-ton units at equivalent external static
pressure when set up per Section 4.5.3 of ARI’s test standard. ARI 260-2001; and efficiency (CFM/watt)
ratings established per ARI’s test standard: ANSI/ARI 210/240-2005.