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
51 68-0311—07
6130 What Terminals are
Wired to the Service
Needed Alert Dry
Contact?
None
S1
S2
S3
S4
None Both Yes Dry Contact Alerts require an EIM (Equipment
Interface Module).
6140 Service Needed Alert
Dry Contact Setup
Normally Open
Normally Closed
Normally Open Both Yes Dry Contact Alerts require an EIM (Equipment
Interface Module).
Choose an option appropriate for the type of
device installed:
Normally Open: The Dry Contact device is
normally open and will close when the device is
activated.
Normally Closed: The Dry Contact device is
normally closed and will open when the device
is activated.
6150 What Terminals are
Wired to the Fan
Failure Alert Dry
Contact?
None
S1
S2
S3
S4
None Both Yes Dry Contact Alerts require an EIM (Equipment
Interface Module).
6160 Fan Failure Alert Dry
Contact Setup
Normally Open when Fan is
Running
Normally Closed when Fan is
Running
Normally Closed
when Fan is
Running
Both Yes Dry Contact Alerts require an EIM (Equipment
Interface Module).
Choose an option appropriate for the type of
device installed:
Normally Open when Fan is Running: The Dry
Contact device is open when the fan is running
and will close when the fan is not running.
Normally Closed when Fan is Running: The Dry
Contact device is closed when the fan is
running and will open when the fan is not
running.
6170 What Terminals are
Wired to the Custom
Alert Dry Contact?
None
S1
S2
S3
S4
None Both Yes Dry Contact Alerts require an EIM (Equipment
Interface Module).
6180 Custom Alert Dry
Contact Setup
Normally Open
Normally Closed
Normally Open Both Yes Dry Contact Alerts require an EIM (Equipment
Interface Module).
Choose an option appropriate for the type of
device installed:
Normally Open: The Dry Contact device is
normally open and will close when the device is
activated.
Normally Closed: The Dry Contact device is
normally closed and will open when the device
is activated.
Table 4. Installer Setup (ISU) Table. (Continued)
ISU
Number
Installer Setup
Name Settings Default
Residential,
Commercial
or Both
Requires
EIM Notes