Viessmann Vitotronic 200 KW2 Installation And Service Instructions Manual page 13

Installation
Changing the high limit safety cut−out setting
(cont.)
Adjustment to 100 ºC (JUMO)
In the delivered condition, the high limit safety cut−out is set to 110 ºC.
Note
If adjusted to 100 ºC, do not set the control thermostat above 75 ºC.
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