Operation; User Mode - Contemporary Controls BAST-221C User Manual

4 Operation

User Mode

4.1
User-side comfort control is accomplished with six buttons – MODE (Heat, Cool, or Ventilate),
FAN (Auto or Continuous), UP, DOWN, SET, and POWER. There are also options to lock
select buttons or all buttons on the thermostat to limit user access if required in certain
applications. A large LCD display indicates setpoint, space temperature, occupancy status,
and current mode of operation using graphical icons.
System modes (Cool, Heat, Ventilate) available to the user are dependent on control type
chosen from Engineering Menu (tyPE) or BACnet object [MSV7] Control Type for BW2 model
and [MSV8] Control Type for B2 model. (See section 4.2 Control Type of this manual).
System modes and button operation may be limited by installation engineer, especially if the
thermostat is completely controlled over BACnet network.
The first tier of operation includes the following settings as shown below. To operate the
thermostat:
1. The POWER button
thermostat. This will disable control (ON/OFF control can be accomplished over BACnet
as well).
2. At power ON, press any button to start the User Mode operation. Press the MODE
button
Heat, or Ventilate@Cool and Ventilate@Heat.
Press the UP/ DOWN buttons
setpoint or rotate the values of a setting. Press the FAN button
modes of AUTO or CONTINUOUS. If no AUTO icon is displayed, the fan is in
CONTINUOUS fan mode and it will run continuously until commanded off using button
on thermostat or BACnet command. If AUTO icon is flashing, the fan is operating
under delay timer and will shut off automatically when delay timer expires.
Press the SET button
toggle the unit between Occupied or Unoccupied states when outside of scheduled
operation. Use SET or MODE to apply (SET button can be locked in applications
forbidding occupancy state user control).
3. Thermostat will return to normal display with the last known setting if there's no button
pressed for 10 seconds.
UM-15090000-AA4
toggles between ON or OFF states to start / stop the
to toggle between different HVAC operating modes such as Cool,
and use UP/ DOWN buttons
to increase/decrease temperature
to toggle fan
to
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