Thermostat Controller User Interface Keys - Johnson Controls - 24-9890-1397 - T612DFH-4 - T612DFH-4+PIR - T612DFH-4 and T612DFH-4+PIR Thermostat Controllers with Fan Control and Occupancy Sensing Capability

T612DFH-4 and T612DFH-4+PIR Thermostat Controllers with Fan Control and Occupancy Sensing Capability Installation Guide

Brand
Johnson Controls
Product name
T612DFH-4 and T612DFH-4+PIR Thermostat Controllers with Fan Control and Occupancy Sensing Capability
Document type
Installation Guide
Document number
24-9890-1397
Document revision
B
Revision date
2021-01-07
Product status
Discontinued
Language
English

The T612 Thermostat Controller user interface consists of five keys on the front cover (Figure 1). The function of each key is as follows:

  • Use the MODE key to toggle among the system modes available, as defined by selecting the appropriate operation sequence in the Installer Configuration Menu (Off, Heat, Cool, Auto).
    Note: If the automatic changeover function (auto function) is enabled in the sequence of operation (SeqOpera), then automatic changeover heating or cooling demand overrides the mode when MODE = off.
  • Use the FAN key to toggle among the fan modes available, as defined by selecting the appropriate fan menu options defined in the Installer Configuration Menu (Low, Med, High, Auto).
  • Use the °C/°F key to change the temperature scale to either Celsius or Fahrenheit and allow access to the Installer Configuration Menu. See the Configuring the T612DFH-4 and T612DFH-4+PIR Thermostat Controllers section.
  • Use the UP/DOWN arrow keys to change the configuration parameters and to activate a setpoint adjustment.