KMBus Function extension inside enclosure for wall mounting.
Using the inputs and outputs allows up to 5 functions to be achieved:
1x Analogue input (0 to 10 V)
Specification of the set boiler water temperature
3 Digital inputs
External changeover of the operating status for heating circuits
1 to 3 with control unit for weather-compensated mode
External blocking
External blocking with central fault message
External demand for a minimum boiler water temperature
Fault messages
Brief operation DHW circulation pump, with control unit for weather-compensated mode
1 switching output (floating changeover contact)
Central fault message output
Control of feed pump to a substation
Control of DHW circulation pump with control unit for weather-compensated mode
Fits:
Vitotronic
Vitotronic 200
Note: Not compatible with Vitodens 200-W EM Plusbus