Operation in the event of a fault
12
Logamatic 4211 - Subject to technical modifications.
75
Tab. 5 Settings for emergency operation
Manually disconnect the heating circuit mixer and
position towards "Open" or "Closed" (prevent re-
engagement) so that the required room temperature is
achieved. To prevent the DHW freezing inside the
heating system, never fully close the heating circuit
mixer.
In case of faults, immediately notify your heating
contractor who will guarantee a professional service.
It is helpful for your heating contractor if you can provide
precise details about the fault.
Fault Settings for emergency operation
ON/OFF switch Switch heating circuit
and DHW ZM422
Boiler water
thermostat
Switch, heating circuit
module
FM442
Central heating failed
Heating circuits failed
R
AUT 60 °C – 90 °C 3
DHW heating failed
Heating circuits supplied normally
R
3 60 °C AUT
Boiler operation failed
R
3 90 °C AUT
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