TEC26x7-4 Series BACnet® MS/TP Networked Thermostat Controllers with Two Outputs Installation
Instructions
Setup and Adjustments
Thermostat Controller User Interface Keys
The TEC26x7-4 Series Thermostat Controller user
interface consists of three keys on the front cover
(Figure 19). The function of each key is as follows:
• OVERRIDE key overrides the unoccupied mode to
occupied at the local user interface for the
specified TOccTime. (TOccTime is defined by
selecting the appropriate time period in the Installer
Configuration Menu.) If one of the binary inputs is
configured to operate as a remote override contact,
this OVERRIDE function is disabled. The
OVERRIDE key also allows access to the Installer
Configuration Menu. See the Configuring the
TEC26x7-4 Series Thermostat Controller section.
• UP/DOWN arrow keys change the configuration
parameters and activate a setpoint adjustment.
Backlit Liquid Crystal Display (LCD)
The TEC26x7-4 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.
Light-Emitting Diodes (LEDs)
Two LEDs are included to call for heat or call for
cooling:
• The heat LED is on when heating is on.
• The cool LED is on when cooling is on.
Status Display Menu
The Status Display Menu is displayed during normal
thermostat controller operation. This menu
continuously scrolls through the following parameters:
• Room Temperature
• System Mode
• Occupancy Status
(Occupied/Unoccupied/Override)
• Applicable Alarms (The backlight lights up as an
alarm condition is displayed.)
Note: An option is available within the Installer
Configuration Menu to lock out the scrolling display and
show only the Room Temperature parameter.
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