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
15 68-0311—07
TrueSTEAM
1. Wire and power TrueSTEAM.
2. Connect the ABCD terminals between TrueSTEAM
and the THM4000 Wireless Adapter.
3. Adjust the DIP Switches on TrueSTEAM as follows
when using the Wireless Adapter:
•DIP3: UP
•DIP4: UP
•DIP5: DOWN
Fig. 26. Powering TrueSTEAM wireless adapter.
Entry/Exit Remote or Vent Boost Remote
1. Remove the cover.
2. Insert the CR2450 coin cell battery (included) into
the slot at the bottom of the remote. See polarity
marking on the remote.
Fig. 27. Installing Entry/Exit Remote or Vent Boost
Remote battery.
3. The LED will briefly flash green. If it flashes red, bat-
tery is not good.
PERFORMING INITIAL SETUP
Initial setup options define the type of system you are
installing:
• Residential or commercial
• Non-zoned or zoned
• Used with or without an Equipment Interface Module
(THM5421)
• Used with or without the TrueZONE Wireless Adapter
(THM4000)
1. Follow prompts on the screen to select the appropri-
ate options.
Fig. 28.
NOTE: If you are connecting the thermostat to the True-
ZONE Wireless Adapter (THM4000), refer to the
TrueZONE instructions to link the thermostat and
RedLINK accessories.
Linking Thermostat to Equipment
Interface Module (if used)
1. Press and quickly release the CONNECT button on
the EIM. Make sure the Connected light is flashing
green.
Fig. 29. EIM CONNECT button.
NOTE: If the Connected light does NOT flash green,
another system may be in the listening mode.
Please exit the listening mode at the other system
and then try again.
• Green flashing: In Listening Mode. System is
ready to add RedLINK devices.
• Green steady: RedLINK devices are
communicating.
• Red: RedLINK device(s) not communicating.
Check EIM and RedLINK devices.
THM4000R1000
TrueSTEAM
MCR31476
6
543
2
ON
OFF
1
MCR33269
Next
CONNECT
CONNECTED