Application Example: Switching Heating And Cooling Valves - ABB i-bus KNX FCL/S 1.6.1.1 Product Manual

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ABB i-bus KNX
Planning and application
4.3

Application example: Switching heating and cooling valves

Besides controlling fans, the additional switch outputs can be used for switching heating and cooling
valves. These mechanical outputs are not suitable for regulating valve position, e.g. with pulse-width mod-
ulation (PWM). (Please compare the switching cycles in the technical data). But instead, they can be used
for opening heating and cooling valves on request.
The following diagram shows a switching example:
The blower actuator does not have the functions needed for fan coil units, like valve regulation, protection
functions and valve purge.
FCL/S x.6.1.1 | 2CDC508116D0203 91