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
73 68-0311—02
Setting the time/date
1. Touch the current time. The screen displays Set Time/
Set Date.
Fig. 75.
2. Touch Set Time or Set Date.
Fig. 76.
3. Touch or until the proper time/date is displayed.
4. Touch Done to save or Cancel to ignore changes.
Fig. 77.
NOTE: The thermostat will automatically switch to and
from Daylight Saving Time.
Setting the fan
1. Touch FAN to display fan settings.
Fig. 78.
2. Touch On, Automatic, Circulate, or Follow Schedule.
3. Touch Done to save and exit.
Fig. 79.
• On: Fan is always on.
• Automatic: Fan runs only when the heating or
cooling system is on.
• Circulate: Fan runs randomly about 35% of the time
(residential use only).
• Follow Schedule: Fan controlled by program.
NOTE: In commercial use, touch Automatic or On to tem-
porarily override the programmed fan schedule.
Setting system mode
1. Touch SYSTEM to display system settings.
Fig. 80.
2. Touch desired option:
• Heat: Thermostat controls only the heating system.
• Cool: Thermostat controls only the cooling system.
• Off: Heating/cooling systems are off.
• Automatic: Thermostat selects heating or cooling as
needed depending on the indoor temperature.
• Emergency Heat (heat pumps with aux. heat):
Controls auxiliary/emergency heat. Compressor is
locked out.
3. Touch Done to save and exit.
Fig. 81.
NOTE: The Automatic and Emergency Heat system set-
tings may not appear, depending on how your
thermostat was installed.
Fri, Jun 14, 2013
6:30 pm
Done
30
FAN
Done
SYSTEM
Done