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 92
• The alert message that is displayed to the user.
• The alert status (snoozed, dismissed, recovered)
User Interactions Log
The User Interactions Log can help a service technician
save time by determining if the issue is related to a system
problem or an accidental user error.
The User Interactions Log records the date and time for
most changes made by the user, whether made at the
thermostat or from a remote location (RedLINK Internet
Gateway, Portable Comfort Control, etc.). The log saves the
most recent 250 user changes, including:
• Indoor Air Quality Settings
• Maintenance Reminders
• Temperature Settings
• System/Fan Mode
• Alerts (snoozed or dismissed)
• Installer Setup
•Date/Time
Performance Logs
NOTE: Only applies to THX9421 Thermostat with an
Equipment Interface Module.
The Performance Log allows the service technician to
quickly check system performance over time to determine
if the equipment is operating as expected or if it requires
servicing.
The thermostat contains the following logs:
• Cooling Performance Log
• Heating Performance Log
• Emergency Heat Performance Log
• Run Time by Equipment Type
• Indoor and Outdoor Conditions Log
Fig. 172.
The Performance Log records the following information:
• Minimum and Maximum Delta T
• Minimum and Maximum Discharge Temperature
• Minimum and Maximum Return Temperature
• Minimum and Maximum Outdoor Temperature and
Humidity
• Minimum and Maximum Indoor Temperature and
Humidity
• Run Time of Heating and Cooling per stage
Fig. 173.
You have the option to view this data in 4 different time
periods:
• Hourly - saves data for the last 8 days.
• Daily - saves data for the last 15 days.
• Weekly - saves data for the last 8 weeks.
• Monthly - saves data for the last 25 months.
NOTES:
— Data is collected in the Emergency Heat Per-
formance Log only if the thermostat was set to
the “Emergency Heat” mode.
— The Run Time by Equipment Type Log contains
the Total Run Time of each equipment type
since the last time it was reset.
— The Minimum and Maximum Delta T, Dis-
charge Temperature and Return Temperature
are only shown in the log if the equipment ran
for at least 5 minutes during a cycle. If the
equipment ran for less than 5 minutes in every
cycle during a 1 hour period, the log will dis-
play “--°.”
— For Air to Air Heat Pumps, the Minimum Delta
T and Minimum Discharge Temperatures will
include defrost cycles in the log.