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
68-0311—07 48
5100 Discharge Air
Temperature Sensor
Type
10K
20K
10K Both Yes Wired Sensors requires an EIM (Equipment
Interface Module).
Select 10K or 20K based on the sensor
installed. Refer to resistance values below:
50062329-001 = 10K ohm
32005180-002 = 10K ohm
C7735A1000 = 10K ohm
C7770A = 20K ohm
C7041 = 20K ohm
5110 A-Coil Low
Temperature Cutoff
Off
35° F to 65° F (in 5° F increments)
Off Both Yes If an optional Discharge Air Temperature sensor
is used, this feature can help prevent icing on
the air conditioning A-Coil.
When temperature reaches the limit you set,
compressor(s) will shutoff while the system fan
continues to run, until the temperature rises to
a safe level.
6000 Select the Dry
Contacts in the
System
Check box on screen for each:
Remote Setback
Full Drain Pan Alert
Dirty Filter Alert
Water Leak Alert
System Shutdown Alert
Service Needed Alert
Fan Failure Alert
Custom Alert
None Both
Remote
Setback
(Commercial
Only)
Yes Remote Setback and Dry Contact Alerts
requires an EIM (Equipment Interface Module).
This ISU is only displayed if one of the S1-S4
terminals are available.
See “Dry Contact Alerts” beginning on page 94.
6010 What Terminals are
Wired to the Remote
Setback Dry
Contact?
None
S1
S2
S3
S4
None Commercial Yes Remote Setback requires an EIM (Equipment
Interface Module).
6020 Remote Setback Dry
Contact Setup
Normally Open when Occupied
Normally Closed when Occupied
Normally Open
when Occupied
Commercial Yes Remote Setback requires an EIM (Equipment
Interface Module).
Choose an option appropriate for the type of
device installed:
Normally Open when Occupied: The Dry
Contact device is open when the room is
occupied and will close when the room is
unoccupied.
Normally Closed when Occupied: The Dry
Contact device is closed when the room is
occupied and will open when the room is
unoccupied.
Table 4. Installer Setup (ISU) Table. (Continued)
ISU
Number
Installer Setup
Name Settings Default
Residential,
Commercial
or Both
Requires
EIM Notes