Occupancy Setting; Engineering Mode Menu - Contemporary Controls BASstat Series User Manual

A current temperature value can be assigned thru BACnet AV-1 to take place of the onboard
temperature sensor value. The assigned value is valid if BACnet communication is driving a
flip-flop signal to (BV-16: heartbeat signal) within the (AV-29: Heartbeat Rate time) period (in
seconds). Otherwise, the assigned temperature will revert back to the onboard temperature
sensor reading.

Occupancy Setting

There are three ways to define thermostat occupancy state. NOTE: Occupancy will be
detected by ESI contact by default.
•
Energy Savings Input (ESI) This is a dry contact input meant for communication from
a customer supplied occupancy sensor. (default)
•
Occupancy status (occupied/unoccupied) can be set by a BACnet supervisor using
writable object ESI Contact Definition [BV14]. "0" for occupied, and "1" for unoccupied.
E12/AV18 must be set with a value of 64 (disabled) in advance (E12/AV18 is set as 0
by default)
•
User control of occupancy state is allowed from the SET button if E12/ AV18 Lock has
the ESI Contact disabled. Pressing the SET button and UP/DOWN buttons will toggle
the occupancy state. Press SET button to confirm. The SET button can work in
conjunction with BACnet occupancy Command [BV14] on last-write-wins basis. The
SET button could be locked to limit user control (use Lock [AV18] BACnet object or
(LOC) Engineering Menu item to lock SET button). In this case only the BACnet
supervisor can set occupancy states.
•
Occupancy Status [BI0] is a read-only BACnet object indicating current occupancy
state -"0" for occupied, and "1" for unoccupied. (AV18 is set as 0 by default).
•
When in unoccupied state, a Moon (
thermostat will change the set-point temperatures to the Unoccupied Cool and
Unoccupied Heat setpoints [AV8 – 9]. When the state changes back to occupied, the
thermostat will return to the occupied set-point values for Cooling and Heating
Temperature Setpoint [AV0, AV3] and a sunlight icon (
indicate occupied state on LCD.

4.3 Engineering Mode Menu

Thermostat configuration can be performed using the engineering mode menu described
below or BACnet objects using a BACnet client tool such as Contemporary Controls free
BACnet Discovery Tool.
installers only, because it is related to system parameters that will affect the control results.
UM-15095500-AA0
It is highly suggested that engineering mode be operated by trained
) icon will be displayed on the LCD and the
) will be displayed to
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