Set Values For Domestic Hot Water (Dhw) - Viessmann PLC VITOCAL 350-HT PRO Operating Instructions For The System User

Operation
Programming unit

Set values for domestic hot water (DHW)

To call up the "Set val DHW" page, tap on the follow-
ing buttons:
■ "Menu"
■ "Set val."
"DHW"
■
Fig. 19
"Set value, cyl"
■
The desired domestic hot water temperature to
which the DHW cylinder is heated during periods of
operation.
Range: 25 to 65 °C
"Set value, raised DHW t"
■
The set temperature value for the function "Raised
set value DHW temp." to eliminate bacteria.
Range: Up to 65 °C
Note
Once a week, the DHW temperature must be
increased to 60 to 65 °C to eliminate any bacteria
that may be present. Excessively high temperatures
result in higher energy demand.
26
(cont.)
DHW heating seven-day program
■
Note
The program provides the option of heating the DHW
cylinder using low-tariff electricity.
"ON" Start (hh:min)
"OFF" End (hh:min)
"Y" The function "Raised set value DHW
temp." is activated
"N" The function "Raised set value DHW
temp." is deactivated