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Viessmann Cascade control unit - Page 20

Viessmann Cascade control unit
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20
Functions
Operating conditions (cont.)
Start-up optimisation (early heat-up)
The start-up optimisation ensures that the boiler is heated up before the
standard mode commences, subject to room and outside temperature.
This ensures that the set room temperature is achieved before the standard
mode commences. A minimum and maximum temperature can be set for the
heat-up period. The greater the difference between the set room temperature
in standard mode and the outside temperature, the longer the heat-up period.
Set value (multi-boiler control unit)
The control unit activates at least the minimum
set period earlier.
The control unit will be activated in advance by
no more than the minimum set period.
Earlier start-up time, to raise the room
temperature by 1ĂK.
The outside temperature has no influence here.
Room factor correction subject to outside
temperature.
In the "Operating details" menu (see pageĂ15) you can scan whether the
control unit is set to "Standard mode" on account of the heat-up function.
5862Ă474ĂGB
Heat-up time
minimum 15 min
Heat-up time
maximum 360 min
Room factor
heat-up 30 min/K
Outside factor
heat-up 0.02 K

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