Operation; User Mode - Contemporary Controls BASstat BAST-221C-BW2 User Manual

4 Operation

4.1

User Mode

User-side 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 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 the installer,
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 outputs. 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
to toggle between different HVAC operating modes such as Cool, 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
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-15090500-AA1
toggles between ON or OFF states to start / stop the
to increase/decrease temperature
and use UP/ DOWN buttons
to toggle fan
to toggle
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