C - A 3
(A/T)CONT900AC43UA Installer Guide
4 Heat/3 Cool/ Heat Pump
Communicating Programmable 3-Wire Hookup
Table 1
Introduction
The (A/T)CONT900AC43UA is a communicating pro-
grammable Comfort Control (See Table 1) that sup-
ports single-stage or multi-stage heat/cool and heat
pump applications. It is a wall mounted, low voltage
(24VAC) communicating Comfort Control with backlit
LCD and a touch screen display. Room temperature
is maintained by controlling the operation of heating,
cooling, heat pump, and dual fuel systems via digital,
two-way communications. The Comfort Control will
communicate with and identify all ComfortLink™ II com-
ponents in the system. It is easily manually config-
ured via the user friendly Installer Setup menu. The
Comfort Control feature includes separate heating and
cooling setpoints, selectable auto or manual
changeover, menu driven 7-day programming, adjust-
able filter reminders, and outdoor temperature sens-
ing. Setup selections and diagnostics are stored in-
definitely in the Comfort Control’s nonvolatile memory,
eliminating the need for battery backup.
Product specifications
Power source: 18-30 VAC, Class II, 50/60 Hz
Storage range: -30°F to 150°F, 5% to 90% RH non-
condensing
Operating temperature range: 0°F to 120°F, 5% to
90% RH non-condensing
System mode: Heat, Cool, Auto, Emergency Heat,
and Off
Fan mode: On, Auto and Circ
Cooling setpoint temperature range: 60°F to 99°F,
1°F resolution
Heating setpoint temperature range: 50°F to 90°F,
1°F resolution
Indoor temperature display range: 40°F to 99°F,
Outdoor temperature display range: -40°F to 127°F
Indoor humidity display range: 0% to 99%, 1% reso-
lution
Minimum cycle off time delay: Compressor, 5 min-
utes. Heat, 0 minutes.
The comfort control contains a Lithium battery which
may contain Perchlorate material.
Due to State Law in California, the following statement
is required:
Perchlorate Material-special handling may apply. See
www.dtsc.ca.gov/hazardouswaste/perchlorate
Installation
When installing this product
Step 1
Read these instructions carefully. Failure to follow
these instructions may damage the product or cause
a hazardous condition.
To Next Page
Loading...
