Operation; User Mode - Contemporary Controls BASstat BAST-421C-B2 User Manual

4 Operation

User Mode

4.1
User-side control is accomplished with six buttons – MODE (Heat, Cool, or Ventilate), FAN
(Auto or On), UP, DOWN, SET, and POWER. There are also options to lock the panel
buttons to limit user access if so required. 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. 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
rotate the values of a setting. Press the FAN button
AUTO or CONTINUOUS On. If no AUTO icon is displayed, the fan 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
to 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-15093000-AA1
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 adjust temperature setpoint or
to toggle fan modes of
Page 11