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
35 68-0311—07
3120 Outdoor
Temperature
Lockouts:
Backup Heat
Lockout
Off
5° F to 65° F (in 5° F increments)
Off Both No ISU 3120 Backup Heat Outdoor Temperature
Lockout requires an outdoor sensor.
This ISU is only displayed if ISU 2010 Heating
Equipment Type is Air to Air Heat Pump,
Geothermal Heat Pump or Geothermal Radiant
Heat and ISU 2190 External fossil fuel kit is set
to Thermostat Controls Backup Heat.
See “Heat pump with outdoor temperature
lockouts” beginning on page 100.
3130 Radiant Heat Cycles
Per Hour - Stage 1
Note: “Stage 1" is not
displayed if there is
only 1 stage of
Radiant Heat.
1 to 12 CPH
3 Both No ISU 3010 Temperature Control Options must
be set to Advanced to view or adjust cycle rate.
This ISU is only displayed when ISU 2010
Heating Equipment Type is Geothermal
Radiant Heat.
The thermostat automatically defaults to the
recommended setting for Geothermal Radiant
Heat (3 CPH).
Cycle rate limits the maximum number of times
the system can cycle in a 1 hour period
measured at a 50% load. For example, when
set to 3 CPH, at a 50% load, the most the
system will cycle is 3 times per hour (10
minutes on, 10 minutes off). The system cycles
less often when load conditions are less than or
greater than a 50% load.
3130 Radiant Heat Cycles
Per Hour - Stage 2
1 to 12 CPH
3 Both No ISU 3010 Temperature Control Options must
be set to Advanced to view or adjust cycle rate.
This ISU is only displayed when ISU 2010
Heating Equipment Type is Geothermal
Radiant Heat.
The thermostat automatically defaults to the
recommended setting for Geothermal Radiant
Heat (3 CPH).
Cycle rate limits the maximum number of times
the system can cycle in a 1 hour period
measured at a 50% load. For example, when
set to 3 CPH, at a 50% load, the most the
system will cycle is 3 times per hour (10
minutes on, 10 minutes off). The system cycles
less often when load conditions are less than or
greater than a 50% load.
Table 4. Installer Setup (ISU) Table. (Continued)
ISU
Number
Installer Setup
Name Settings Default
Residential,
Commercial
or Both
Requires
EIM Notes