Dhw Time Program - Viessmann vitotronic 300-k Operating Instructions Manual

Vitotronic 300-K Operating

DHW Time Program

Note: Further information can be found in chapter
"Terminology" in this manual.
Setting the time program for DHW heating
Factory setting: "Automatic"
During operation with standard room temperature, DHW
in the DHW tank is heated to the set DHW temperature.
The time phase for DHW heating automatically starts half
an hour earlier than the time phase for central heating
with standard room temperature. DHW heating may
start, for example, at 05:30 h if the start time for central
heating is 06:00 h. This means hot water is already
available when your system starts operating with standard
room temperature.
You can change this time program individually
in accordance with your requirements.
From the home screen tap the following buttons:
1. "Menu"
2. "DHW"
3. "Time program DHW"
4. "Individual"
5. Tap "OK" to confirm
For how to set a time program, see page 11.
Note: - The DHW is not heated between the time phases.
Frost protection for the DHW tank is active.
- When setting time programs, bear in mind that
your heating system requires some time to heat
the DHW tank to the desired temperature.
DHW fourth phase heating (auxiliary function)
This function can be used to heat the water in the DHW
tank to a higher set DHW temperature.
Your heating contractor can enable this function by
specifying a second set DHW temperature.
Set time phase 4 for this. During this time, DHW will
be heated to the second set DHW temperature value.
Note: A start and stop time must be set for the 2nd and
3rd time phase.
DHW Heating
19