Control Type - Contemporary Controls BASstat Series User Manual

User Mode Flow Chart

4.2. Control Type

Control Type, System Mode and Algorithm Configuration
The BAST-221C supports two different control types, selectable in Engineering Menu item (tyPE) or
BACnet object [MSV8].
Control type is only configurable by the installer using Engineering Mode Menu or BACnet
supervisor. The installer must decide the control type suitable for the application, set it to a static
value, or program the BACnet supervisor to change the control type automatically. The default
control type is set to 2- stage Heating and Cooling with Auto Changeover. This is the most common
control type. 2- stage Heating and Cooling with Manual Changeover can be used to limit frequent
automatic change of system modes (Cool or Heat).
Dual Stage Heat and Cool with Auto Changeover - This the default control type in this thermostat.
Mostly used for standalone operation. The thermostat will switch between Cool and Heat modes
automatically. In this control type, the user will be presented with a choice of Heat or
Ventilation@Heat when the thermostat is in Heat mode (automatic), and Cool or Ventilation@Cool
when the thermostat is in Cool mode (automatic).
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