Honeywell TH8320R1003 Vision Pro 8000 Product Data page 71

Installer Options
Fig. 148.
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Fig. 149.
Using the Temperature Display
In some circumstances, the temperature displayed on the
Home screen may not match the temperature near the
thermostat.
If your system is set up to use remote indoor sensors, it may be
reading a sensor in another location.
Temperature reading depends on location of sensor
Fig. 150.
Using the Humidity Display
In some circumstances, the humidity displayed on the Home
screen may not match humidity near the thermostat.
Some systems are set up to use two sensors, one to control
humidification, the other for dehumidification. These sensors
are often installed in different locations.
MCR33976
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MCR33977
MCR33985
Depending on how your thermostat was installed, the
thermostat Home screen will display humidity readings from
only one sensor.
Humidity reading depends on location of sensor.
Universal Outputs (U1, U2, U3)
U1, U2, U3 are universal outputs that can be setup to control
IAQ equipment and a stage of heating or cooling in the Installer
Setup. Setup options are listed below. See Thermostat Wiring
Guides on page 128 and Equipment Interface Module wiring
guides on page 129.
Universal Output Options
With Equipment Interface Module (U1, U2, U3):
• Humidification (ISU 803)
• Dehumidification (ISU 904)
• Ventilation (ISU 1002)
• Cool Stage 3 (ISU 208)
• Cool Stage 4 (ISU 209)
• Geothermal Radiant Heat (ISU 203, 204)
TH8321 Thermostat Only (U1)
• Humidification (ISU 803)
• Dehumidification (ISU 904)
• Ventilation (ISU 1002)
• Cool Stage 3 (ISU 208)
• Conventional Heat Stage 3 (ISU 210, 214)
• Backup Heat Stage 2 for Heat Pumps (ISU 217)
• Geothermal Radiant Heat (ISU 203)
Universal Inputs (S1–S4)
S1–S4 are universal inputs that can be setup to work with a
sensor or dry contact device in the Installer Setup. Setup
options and compatible sensors are listed below. See wiring
diagrams on page 73 and page 134. The thermostat has 1
Universal Input and the Equipment Interface Module has 4
Universal Inputs.
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VISIONPRO 8000 WITH REDLINK™
MCR3416
Fig. 151.
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