Internal Extension H - Viessmann VITOLADENS 300-W Installation And Service Instructions Manual

Control unit
(cont.)
Boosting DHW heating
This function is activated by specifying a
second set DHW temperature via coding
address 58 in the "DHW" group and acti-
vating the fourth DHW phase for DHW
heating.

Internal extension H3

Function description
Heating is boosted during the periods
selected in this time phase.
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