Setup And Adjustments; Thermostat Controller Operation Overview; Thermostat Controller User Interface Keys; Backlit Lcd - Johnson Controls T60xDFH-4 Installation Instructions Manual

Setup and Adjustments

Thermostat Controller Operation Overview

Figure 10: Front Cover of Thermostat Controller (T60xDFH-4+PIR Model Shown)

Thermostat Controller User Interface Keys

The T60x Series Thermostat Controller user interface
consists of five keys on the front cover (as illustrated in
Figure 10). 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 (for example, 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 (for example, 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 T60xDFH-4 and
T60xDFH-4+PIR Series Thermostat Controller
section.
T60xDFH-4 and T60xDFH-4+PIR Series Thermostat Controllers with Dehumidification and Occupancy
Sensing Capability Installation Instructions
• Use the UP/DOWN arrow keys to change the
configuration parameters and to activate a setpoint
adjustment.

Backlit LCD

The T60x Series Thermostat Controllers include a
2-line, 8-character backlit display. Low-level
backlighting is present during normal operation, and it
brightens when any user interface key is pressed. The
backlight returns to low level when the thermostat
controller is left unattended for 45 seconds.
LEDs
Three LEDs are included to indicate the fan status, call
for heat, or call for cooling:
• The fan LED is on when the fan is on.
• The heat LED is on when heating is on.
• The cool LED is on when cooling is on.
Integrated PIR Sensor – T60xDFH-4+PIR
Thermostat Controllers
The integrated PIR sensor allows for automatic
switching between fully adjustable Occupied and
Stand-By temperature setpoints without user
interaction. This feature generates incremental energy
savings during scheduled occupied periods while the
space is unoccupied.
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