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 64
13130 Allow Cool Delta T
Diagnostics when
Indoor Temperature
is [Indoor
Temperature Range]
Minimum Setting
No Limit
35° F to 115° F (in 5° F
increments)
No Limit
(Always)
Both Yes This ISU only applies to Cooling.
This ISU is only displayed when ISU 13015 Set
Advanced Diagnostic Options is set to Yes.
The thermostat monitors Delta T of the system
ONLY when the indoor temperature is within a
certain range. Set to No Limit to monitor Delta
T during all indoor temperature conditions.
13130
Maximum Setting
No Limit
40° F to 120° F (in 5° F
increments)
No Limit
(Always)
Both Yes
13140 Allow Cool Delta T
Diagnostics when
Indoor Humidity is
[Indoor Humidity
Range]
Minimum Setting
No Limit
0% to 95% (in 5% increments)
No Limit
(Always)
Both Yes This ISU only applies to Cooling.
This ISU is only displayed when ISU 13015 Set
Advanced Diagnostic Options is set to Yes.
The thermostat monitors Delta T of the system
ONLY when the indoor humidity is within a
certain range. Set to No Limit to monitor Delta
T during all indoor humidity conditions.
13140
Maximum Setting
No Limit
5% to 100% (in 5% increments)
No Limit
(Always)
Both Yes
13150 Allow Cool Delta T
Diagnostics when
Outdoor
Temperature is
[Outdoor
Temperature Range]
Minimum Setting
No Limit
-50° F to 135° F (in 5° F
increments)
No Limit
(Always)
Both Yes This ISU only applies to Cooling.
This ISU is only displayed when ISU 13015 Set
Advanced Diagnostic Options is set to Yes.
The thermostat monitors Delta T of the system
ONLY when the outdoor temperature is within a
certain range. Set to No Limit to monitor Delta
T during all outdoor temperature conditions.
13150
Maximum Setting
No Limit
-45° F to 140° F (in 5° F
increments)
No Limit
(Always)
Both Yes
13160 Allow Cool Delta T
Diagnostics when
Outdoor Humidity is
[Outdoor Humidity
Range]
Minimum Setting
No Limit
0% to 95% (in 5% increments)
No Limit
(Always)
Both Yes This ISU only applies to Cooling.
This ISU is only displayed when ISU 13015 Set
Advanced Diagnostic Options is set to Yes.
The thermostat monitors Delta T of the system
ONLY when the outdoor humidity is within a
certain range. Set to No Limit to monitor Delta
T during all outdoor humidity conditions.
13160
Maximum Setting
No Limit
5% to 100% (in 5% increments)
No Limit
(Always)
Both Yes
13170 Defrost Cycle
None
1 to 60 minutes (in 1 minute
increments)
10 Both Yes This ISU is only displayed if ISU 2010 Heating
Equipment Type is Air to Air Heat Pump.
Press the up/down arrows to set the maximum
time duration of a defrost cycle. Check the heat
pump documentation for the defrost cycle time.
Note: The diagnostic algorithm detects when
the system goes into defrost based on the
measured Delta T of the system. When the
thermostat detects this change in temperature,
the thermostat will not compare Delta T to the
Minimum and Maximum Delta T Fault Limits.
After the defrost cycle has ended, the
thermostat will resume monitoring Delta T of
the system.
13180 Delta T Alert
Sensitivity
1 to 5
3 Both Yes See “Delta T Alert Sensitivity (ISU 13180).”
beginning on page 89.
Table 4. Installer Setup (ISU) Table. (Continued)
ISU
Number
Installer Setup
Name Settings Default
Residential,
Commercial
or Both
Requires
EIM Notes