Aprilaire 6404 User Manual

Owner’s

Manual

Preface

Thank you for purchasing a new Aprilaire®Zoned Comfort
Control System. We sincerely appreciate your business and
are pleased to add your name to our growing list of customers.
With this purchase, you have invested in the highest quality
equipment currently available.

Please be assured that in addition to product quality, we
are committed to product performance and complete customer
satisfaction. It should be of equal significance to you that we
have a network of dealers throughout North America that sell,
install, and service our products to help back up our
commitment to quality and performance.

Overview

The Aprilaire Zoned Comfort Control System has been
designed to increase comfort in your home and reduce energy
costs. It’s able to do this because it solves the problem caused
by various areas of the home gaining and losing heat at
different rates. Unlike conventional heating and air conditioning
systems, Zoned Comfort Control knows, at any given time,
which areas (zones) of your home require conditioned air. With
this information, the Zoned Comfort Control automatically
directs the air to the zones that require it. Because of this, it will
not only increase the comfort level throughout your home, but
by setting back the temperature in unoccupied zones it will also
allow you to reduce your energy costs.

The components that make up the Aprilaire Zoned Comfort
Control System are the following: thermostats, a Control Panel,
air control dampers and heating and cooling equipment, as
shown in the illustration on the following page. The Control
Panel is typically located on an inside wall near your heating
and air conditioning equipment. The dampers are located
inside your air ducts in such a way that each zone can be
independently controlled. Thermostats, placed in each zone,
are directly connected to the Control Panel.

©Research Products Corporation 2006

The above illustration shows a typical three zone Aprilaire
Zoned Comfort Control system.

For enhanced health, comfort and efficiency, Aprilaire offers an
entire line of indoor air quality solutions. To learn all about
Fresh Ideas for Indoor Air, visit us at www.aprilaire.com.

Deliver optimum humidity throughout your home to
eliminate dry nose and throat and itchy skin and to reduce
the chance of upper-respiratory problems

Deliver the cleanest and healthiest air to improve the
health of your family and to protect the performance of
your heating/cooling equipment

Ensure a supply of clean and fresh air into your home to
make it more healthy, comfortable and energy efficient

Combine easy programming, pinpoint accuracy and digital
controls to provide you with the ultimate in both comfort
and energy savings

A

B

C

Zone 1

68˚F (20˚C)

Zone 2

70˚F (21˚C)

Zone 3

65˚F (18˚C)

A

B

C

D

D

ENERGY

RECOVERY

VENTILATOR

AUTOMATIC

HUMIDIFIER

HIGH EFFICIENCY

AIR CLEANER

ELECTRONIC

THERMOSTAT