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 68
Mounting Optional Accessories
Mounting Outdoor Sensor
Mount the sensor where:
• it cannot be tampered with.
• there is good air circulation.
• it can measure true outdoor ambient temperature and
humidity.
• wire distance between C7089U1006 and EIM is less
than 200 feet (wired sensor only).
Do not mount the sensor:
• in direct sunlight.
• where hot or cold air blows on the sensor. Discharge
line from an outdoor compressor unit, vent or fan
causes inaccurate temperature readings.
• where snow, ice or debris can cover it.
MOUNTING C7089R1013 WIRELESS OUTDOOR
SENSOR
Use the following steps to mount the sensor (see Fig. 68):
1. Mount the sensor on a vertical exterior wall, at least
6 inches below any overhang. Choose a location pro-
tected from direct sunlight.
2. Place sensor securely in bracket, facing away from
wall.
Fig. 68. Mounting Outdoor Sensor.
MOUNTING C7089U1006 WIRED OUTDOOR
TEMPERATURE SENSOR
Use the following steps to mount the sensor:
1. Remove the sensor from the mounting clip.
2. Mark the area on the location selected for mounting
the sensor mounting clip.
3. Mount the clip.
4. See “Wiring C7089U1006 Outdoor Sensor” on
page 157.
Fig. 69. Typical locations for C7089U1006 Outdoor
Sensor.
Mounting C7189R1004 Wireless Indoor
Sensor
Use the following steps to mount the sensor (see Fig. 70):
1. Remove the wallplate and mount it 4 to 6 feet above
the floor on an interior wall. Drill 3/16-inch holes for
drywall, 7/32-inch for plaster.
2. Attach sensor securely to wallplate as shown.
Fig. 70. Mounting Indoor Sensor.
M28491
M28849A
M7514