Page 55 - Advanced Course

KNX ADVANCED COURSE

2.1.3.2 Actuator – Variant 1 (Switch Actuator)

A switch or heating actuator can be used as an actuator in connection with one/several
thermoelectric valve drives. A cost-effective hardware variant is thereby produced if more
than one hot water convector per room needs to be switched.

Figure 30: Example of a heating actuator

Note: In the case of low supply voltages (e.g. 24 V), the reaction times of the
thermoelectric elements and their respective cable lengths must be observed.

Switching applications must be selected for the room thermostat. The operating time of
the thermoelectric drive should be noted for the cyclic time of the switching control value.

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