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
57 68-0311—07
9120 System Modes
Allowing
Dehumidification
Check box on screen for each:
Heat
Cool
Off
Cool
Default varies
based on
heating/cooling
equipment
selected
Both No This ISU is only displayed when ISU 9000
Dehumidification Equipment is set to
Dehumidifier.
Click boxes on screen to select which system
modes allow dehumidification. If a box is NOT
checked, the thermostat will NOT allow
dehumidification to operate in that mode.
Heat: Includes Heat, Emergency Heat and Auto.
If the system is in Auto mode, the thermostat
will allow dehumidification if the last call was
for heat.
Cool: Includes Cool and Auto. If the system is in
Auto mode, the thermostat will allow
dehumidification if the last call was for cool.
Off: The thermostat will allow dehumidification
when the system setting is Off.
See “Dehumidification - Residential” beginning
on page 105 or “Dehumidification -
Commercial” beginning on page 110.
9130 Dehumidifier Fan
Control
Thermostat Controls Fan
Equipment Controls Fan
Thermostat
Controls Fan
Both No This ISU is only displayed when ISU 9000
Dehumidification Equipment is set to
Dehumidifier.
Thermostat Controls Fan: The thermostat turns
on the dehumidifier and the fan when
dehumidification is needed.
Equipment Controls Fan: The thermostat turns
on the dehumidifier when dehumidification is
needed. The fan is controlled by the equipment.
9140 Dehumidifier
Lockout
Dehumidifier Allowed when Cool
is Running
Dehumidifier Not Allowed when
Cool is Running
Dehumidifier
Allowed when
Cool is Running
Both No This ISU is only displayed when ISU 9000
Dehumidification Equipment is set to
Dehumidifier.
Dehumidifier Allowed when Cool is Running:
Dehumidifier can run when the cooling system
is on.
Dehumidifier Not Allowed when Cool is
Running: Dehumidifier can NOT run when the
cooling system is on.
9180 Dehumidification
Away Mode
Not Allowed
Allowed
Not Allowed Both No This ISU is NOT displayed when ISU 9000
Dehumidification Equipment is None.
ISU 9190 to 9200 are only displayed when ISU
9180 Dehumidification Away Mode is Allowed.
See “Dehumidification Away Mode” beginning
on page 108.
9190 Dehumidification
Away Mode - Fan
Control
Automatic
On
Circulate
Automatic Both No The On and Circulate settings may re-introduce
humidity into the living space.
Table 4. Installer Setup (ISU) Table. (Continued)
ISU
Number
Installer Setup
Name Settings Default
Residential,
Commercial
or Both
Requires
EIM Notes