THX9321 & THX9421 Product Data
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
93 68-0311—02
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. 171.
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. 172.
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 Perfor-
mance 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, Discharge
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 display “--°.”
— For Air to Air Heat Pumps, the Minimum Delta T
and Minimum Discharge Temperatures will include
defrost cycles in the log.