Control Type - Contemporary Controls BAST-221C User Manual

User Mode Flow Chart

Control Type

4.2
Control Type, System Mode and Algorithm Configuration
Both binary thermostat models (B2 and BW2) support two different control types, selectable in
Engineering Menu item (tyPE) or BACnet object [MSV8] Control Type for B2 model or [MSV7]
Control Type for BW2 model.
Control type unlike thermostat system mode, is not selectable by the end user, only configurable
by the installation engineer using Engineering Mode Menu (manual) or BACnet supervisor using
BACnet commands (commanded by BACnet supervisor). The engineer installing the thermostat
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 based on logic for the application
requirements such as change of seasons or geolocation. 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).
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