TEC2001-4 and TEC2001-4+PIR Single-Stage Wireless Thermostat Controllers Installation Instructions
6
Backlit Liquid Crystal Display (LCD)
The thermostat controller includes 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.
Integrated PIR Sensor –
TEC2001-4+PIR Thermostat Controller
The integrated PIR sensor allows for automatic
switching between fully adjustable Occupied and
Unoccupied temperature setpoints without user
interaction. This feature generates incremental energy
savings during scheduled occupied periods while the
space is unoccupied.
Programming Overview
Three menus are used to view, program, and configure
the TEC2001-4 and TEC2001-4+PIR Thermostat
Controllers: the Status Display Menu, the Main User
Menu, and the Installer Configuration Menu.
Status Display Menu
The Status Display Menu displays during normal
operation. This menu scrolls through several
parameters:
•
Room Temperature
•
System Mode
•
Schedule Status (Occupied/Unoccupied/Override)
•
Outdoor Temperature – An outdoor air temperature
sensor must be connected.
•
Applicable Alarms – The backlight lights up as an
alarm condition is displayed.
Note:
Press the
YES
key to temporarily stop this
menu from scrolling.
Note:
An option is available within the Installer
Configuration Menu to lock out the scrolling display and
show only the
Room Temperature
parameter.
Main User Menu
Use the Main User Menu to access and change the
basic operating parameters of the thermostat controller.
During normal operation, press the
MENU
key once to
access the Main User Menu. This menu is most
commonly used by the zone occupant.
The Main User Menu includes the following
parameters:
•
Temperature Setpoints
•
System Mode
•
Fan Mode
•
The Main User Menu uses Auto Help. Auto Help
displays automatically in the Main User Menu
when there is a pause in programming activity.
For further information, see the
Operation
section.
Installer Configuration Menu
Use the Installer Configuration Menu to set up the
thermostat controller for application-specific operation.
To access the menu, press and hold the
MENU
key for
approximately 8 seconds.
Occupancy Sensor Operation –
TEC2001-4+PIR Thermostat Controller
A TEC2001-4+PIR Thermostat Controller (or a
TEC2001-4 Thermostat Controller equipped with a PIR
accessory cover) provides advanced occupancy logic.
Note:
The PIR strategy is an occupied strategy. If the
thermostat controller is programmed to be Unoccupied,
the PIR function does not have an affect on the
occupancy strategy.
The thermostat controller automatically switches the
occupancy level between Occupied and Unoccupied as
required, when local movement is sensed. In the
Occupied mode, if no movement is detected beyond
the
Unocc TM
parameter setting, the mode changes to
Unoccupied. Once movement is detected, the mode
changes back to Occupied.
Occupancy sensing is enabled only if a PIR cover is
installed. The PIR cover, when installed, is auto
detected.
PIR Diagnostic LEDs
The diagnostic LEDs inside the PIR lens brighten when
movement is detected within the first 30 minutes after
powerup. The LEDs do not light up or brighten after the
initial 30-minute period.
Setpoints
The installer must be certain that the difference
between the Occupied and Unoccupied setpoints can
be recovered within a timely fashion to ensure
occupancy comfort. In addition, the difference between
the two setpoints must be large enough to warrant
maximum energy savings.
