Honeywell THX9421 Thermostat User Manual


 
TM
PRODUCT DATA
68-0311-01
THX9321 Prestige
®
2.0 and
THX9421 Prestige
®
IAQ 2.0
with EIM
APPLICATION
The Prestige 2.0 and Prestige IAQ 2.0 Systems feature an
effortless, 7-Day programmable color touchscreen thermostat
that provides control of temperature, humidification,
dehumidification, and ventilation for up to 4 Heat/2 Cool heat
pump systems or up to 3 Heat/2 Cool conventional systems
for residential and commercial applications.
FEATURES
RedLINK™ Compatible
Increase your content and profit per job by including
RedLINK™ accessories that meet your customers comfort
and convenience needs. RedLINK accessories include the
Wireless Outdoor Sensor, Portable Comfort Control (PCC),
Equipment Interface Module (EIM), RedLINK Internet
Gateway, Wireless Indoor Sensor, TrueSTEAM™ humidi-
fier with Wireless Adapter, TrueZONE™ zoning panel with
Wireless Adapter, Vent Boost Remote and Entry/Exit
Remote.
Customizable Service Reminders
Set up to 10 service reminders. Choose from the pre-set
options or customize your own. Reminders based on date,
outdoor temperature or a dry contact input will alert cus-
tomers with instructions to contact you for assistance.
Delta T Alerts and Diagnostics
Alerts give customers a sense of security while also
enabling you to service or replace the equipment prior to a
loss of heating or cooling. Based on limits you set at instal-
lation, customers can be alerted when their system is not
operating as expected. The system alert will instruct cus-
tomers to contact you for assistance. Requires EIM.
Delta T Installer Test
Save time by viewing Delta T while running a system test to
verify proper operation. Requires EIM.
Universal Inputs – S1 and S2
Assignable inputs allow you to configure Indoor and
Outdoor Temperature Sensors, Discharge and Return Air
Sensors or Dry Contact Devices. Dry Contact Devices can
be used to trip pre-set or customized alerts on the thermo-
stat home screen. Requires EIM.
User Interaction Log
The interaction log stores history of thermostat setting
changes including temperature, system and installer setup.
You can use the interaction log to save time by determining
if the issue is a system error or an accidental user error.
Configurable for Residential and Light Commercial
Applications
One thermostat does it all to meet the needs of Residential
and Light Commercial applications. Simply select Residen-
tial or Commercial during the installer setup. If Commercial
is selected, the thermostat will use commercial language,
meet building codes and offer 365 day holiday scheduling.
USB Port for Quick Installer Setup
Save time by using a USB stick to upload installer settings
and service reminders in one simple step.
Selectable Sensors
When paired with a Wireless Indoor Sensor(s) you have
the ability to choose which sensor(s) to use for tempera-
ture, humidification and dehumidification. They can be
used in combination for temperature averaging—or individ-
ually—to condition humidity levels in separate spaces.