2 Installer’s Guide
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS
CAREFULLY BEFORE INSTALLING OR OPERATING THIS
CONTROL AND SYSTEM COULD CAUSE PERSONAL INJURY
AND/OR PROPERTY DAMAGE.
ATTENTION: MERCURY NOTICE
This product does not contain mercury,
but it may replace a product that contains
mercury.
Mercury and products containing mercury
must not be discarded in household
trash. Do not touch any spilled mercury.
Wearing non-absorbent gloves, clean
up any spilled mercury and place it in a
sealed container. For proper disposal of
a product containing mercury or a sealed
container of spilled mercury, place it in a
suitable shipping container.
On the Internet, visit www.white-rodgers.
com for a location where the product
containing mercury can be sent.
To prevent electrical shock and/or
equipment damage, disconnect electric
power to system at main fuse or circuit
breaker box until installation is complete.
WARNING
Thermostat installation and all
components of the control system shall
conform to Class II circuits per the NEC
code.
WARNING
INTRODUCTION TO THERMOSTAT AND COMMUNICATING
SYSTEM
This is the dealer installation and start-up instruction guide for the
Comfort Control
2
HD Communicating Thermostat. It features a flexible
programming sequence for residential applications. It is designed to
control components of a 24 VAC residential ClimateTalk
TM
communicating
system consisting of gas or electric heat, heat pump, and central air
conditioning applications. The high-resolution color display offers easy
readability, intuitive programming with individual touch buttons to the
right of the screen, on-screen prompting, pop-up message alerts to
change filter, or regular servicing check-ups, and an exchangeable
faceplate. The thermostat has a USB port for contractor setup.
The thermostat’s major features include 40
o
to 99
o
F setpoint range,
1
o
resolution, 3.5-inch diagonal ¼ VGA LCD, auto configure, auto-
changeover, selectable continuous fan speeds, humidity control,
dehumidification control, dual fuel control, advanced diagnostics and
fault code display, advanced installer menu, simultaneous heat and
cool program storage, a four-step daily schedule sequence, energy
management recovery, filter change-out indicator, replace UV lamp
indicator, change Humidifier pad and program loss start up temperature.
Note: If system power is lost for more than eight hours, the clock will have
to be reset. Programming and configuration settings will be saved.
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