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
68-0311—02 124
automatically adjust the ramp rate based on outdoor
conditions. This allows the thermostat to save energy by
starting recovery at the optimum time as outdoor conditions
change.
NOTE: The thermostat uses an adjustable ramp rate
when the thermostat is setup for commercial. This
allows the thermostat to recover on time during
changing conditions (occupancy changes, tem-
perature overrides, load conditions, opening/clos-
ing of doors etc) which are common in
commercial applications.
Fig. 296.
Fig. 297.
Custom Names
The thermostat location (name) can be displayed on the home
screen. See the name “OFFICE” in Fig. 298 and 299. This is
useful when multiple thermostats are mounted in a manager’s
office or equipment room, to quickly identify which thermostat
is in control of a specific zone or area.
Fig. 298.
Fig. 299.
Remote Setback
The thermostat allows you to do REMOTE SETBACK when set
up for commercial use. This feature requires an occupancy
sensor connected to the S1, S2, S3, or S4 terminals at the
EIM.
During occupied periods, the sensor tells the thermostat to go
to STANDBY (setback settings) when no one is in the room. If
someone is in the room, then it follows the settings of the
occupied period. The occupancy sensor is ignored during
unoccupied periods.
If the thermostat is setup for non-programmable, the sensor
tells the thermostat to go to STANDBY settings when no one is
in the room. If someone is in the room, then it follows the
settings set by the user.
A Remote Setback Time Delay (ISU 6030) can be set to force
the thermostat to wait before it switches from occupied settings
to the standby settings. This allows the room to stay
comfortable if the room is unoccupied for a short period of
time. When set to 0 minutes, the thermostat will switch from
occupied settings to the standby settings immediately when
the room is unoccupied.
Set Up Remote Setback
1. Select “Remote Setback” as shown in Fig. 300.
Fig. 300.