Contemporary Controls BASstat BAST-221C-BW2, Руководство пользователя, Страница: 16 / 42

UM-15090500-AA1 Page 15
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
) BACnet object [
MSV7
].
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).
System modes available to the user are dependent on control type chosen from
Engineering
Menu (tyPE)
or BACnet object [
MSV7
]
Control Type.
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