Maximum Protection; Frost Protection - DeDietrich C230 ECO-A 120 Installation, Operating And Service Manual

C230 ECO-A
3.4.3

Maximum protection

The maximum protection switches the unit off if the water temperature
is too high (230°F (110°C)) and interlocks it on the control box. Once
the fault has been remedied, the unit can be reset using the reset-
key.
3.4.4

Frost protection

The unit must be installed in a frost-free area to prevent freezing of
the condensate drain pipe. If the temperature of the heating water
drops too much, the built-in unit protection activates.
3 Boiler description
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