Spec Sheet
Table Of Contents
- Application
- Features
- Contents
- Specifications
- System Installation
- Installation Options
- Guidelines for Installing RedLINK Devices
- Installing Equipment Interface Module (if used)
- Wiring 24 Vac Common
- Selecting Discharge and Return Air Temperature Sensor Mounting Locations
- Selecting Return Air Temperature Sensor Mounting Location
- Installing Discharge and Return Air Temperature Sensors
- Selecting Thermostat Location
- Installing Wallplate
- Power Optional REDLINK™ Accessories
- Performing Initial Setup
- Linking Thermostat to Equipment Interface Module (if used)
- Linking RedLINK™ Accessories
- Completing Initial Setup
- Adding RedLINK Accessories to the Thermostat
- Locating the Connect Buttons on RedLINK Accessories
- Finding Your Password (Date Code) to Access Installer Options
- Installer Options
- Making Changes to Installer Setup
- Installer Tests
- Operation
- Setting the time/date
- Setting the fan
- Setting system mode
- Preset Energy-Saving Schedules
- Adjusting program schedules
- Overriding schedules: residential use
- Overriding schedules: commercial use
- Viewing equipment status
- Setting vacation hold: residential use
- Setting holiday/event schedules: commercial use
- Setting custom events: commercial use
- Setting holiday schedule: commercial use
- Setting holiday override: commercial use
- Initiating occupancy mode: commercial use
- Remote setback: commercial use
- Adjusting humidification settings
- Adjusting dehumidification settings: residential use
- Adjusting dehumidification settings: commercial use
- Adjusting ventilation settings
- Customizing screen color
- Setting preferences
- Cleaning the thermostat screen
- Adjusting security settings
- Viewing dealer information
- Advanced Features
- Installer options
- Using the temperature display
- Using the humidity display
- Universal Outputs (U1, U2, U3)
- Universal Inputs (S1, S2, S3, S4)
- Alerts and Diagnostics
- Heat Pump and Backup Heat Operation
- Indoor Air Quality (IAQ) Control
- IAQ Reminders
- Customizable Reminders
- USB Port
- Commercial Features
- Overriding schedules: commercial use
- Setting holiday/event schedules: commercial use
- Setting custom events: commercial use
- Setting holiday schedule: commercial use
- Setting holiday override: commercial use
- Initiating occupancy mode: commercial use
- Ramp Rates
- Custom Names
- Remote Setback
- Economizer and Time of Day (TOD) Operation
- Pre-Occupancy Purge
- Battery Replacement
- Optional Accessories
- Portable Comfort Control
- Remote Indoor Sensors
- Backup Control
- Replacing a Thermostat
- Replacing an Equipment Interface Module
- Wiring
- EIM Wiring Diagrams
- THX9321 Thermostat Wiring Diagrams
- THX9321 Thermostat Wiring Diagrams Using Universal Relays to Control Heating or Cooling
- Wiring IAQ Equipment or a Heat/Cool Stage to the Universal Terminals
- Economizer Module Wiring Diagrams
- Wiring C7089U1006 Outdoor Sensor
- Wiring guide — Wired Indoor Sensors
- Zoning
- Troubleshooting
- Regulatory Information
THX9321 PRESTIGE
®
2.0 AND THX9421 PRESTIGE
®
IAQ WITH EIM
61 68-0311—07
11050 UV Bulb 1
Replacement
Reminder
Note: “1” is not
displayed if there is
only 1 UV Bulb
Off, 6, 12, 24 Calendar Months
Off Both No
11050 UV Bulb 2
Replacement
Reminder
Off, 6, 12, 24 Calendar Months
Off Both No
12000 Installer Custom
Reminders
View / Edit Custom Reminders
Add Custom Reminders
None Both No See “Customizable Reminders” beginning on
page 119.
13000 Heat Delta T
Diagnostics
Off
On
On Both Yes This ISU is only displayed when the thermostat
is setup for a Non-Zoned Forced Air Heating
System and the thermostat is setup for 10K
Discharge and Return Air Sensors at ISU 5000
(What Sensors are WIRED to your System?)
This ISU is NOT displayed when the thermostat
is setup for an External Fossil Fuel Kit or an
Economizer (ISU 2190 and 2220).
See “Delta T Diagnostics” beginning on
page 86.
13010 Cool Delta T
Diagnostics
Off
On
On Both Yes This ISU is only displayed when the thermostat
is setup for a Non-Zoned Cooling System and
the thermostat is setup for 10K Discharge and
Return Air Sensors at ISU 5000 (What Sensors
are WIRED to your System?)
This ISU is NOT displayed when the thermostat
is setup for an Economizer (ISU 2220).
See “Delta T Diagnostics” beginning on
page 86.
13015 Set Advanced Delta T
Diagnostic Options
No
Yes
No Both Yes See “Advanced Options for Delta T Diagnostics”
beginning on page 89
13020 Allow Delta T
Diagnostics During
Humidification
No
Yes
Yes Both Yes This ISU is only displayed when ISU 13015 Set
Advanced Diagnostic Options is set to Yes.
No: The thermostat does NOT monitor Delta T
of the system during a call for humidification.
Yes: The thermostat monitors Delta T of the
system during a call for humidification.
Table 4. Installer Setup (ISU) Table. (Continued)
ISU
Number
Installer Setup
Name Settings Default
Residential,
Commercial
or Both
Requires
EIM Notes