Increased Dhw Hygiene - Viessmann VITODENS Operating Instructions Manual

DHW heating
Time program
(cont.)

Increased DHW hygiene

This function can be used to heat the water in the
DHW cylinder 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 (see page 14). During this
time, DHW will be heated to the second set DHW tem-
perature value.
Once-only DHW heating outside the time program
Note
The operating program "Heating and DHW" or "Only
DHW" must be set for at least one system heating cir-
cuit.
Setting the time program for the DHW circulation pump
Factory setting: "Automatic"
The DHW circulation pump operates in parallel to the
DHW heating time program.
You can change this time program individually in
accordance with your requirements.
Tap the following on-screen buttons:
1. "Menu"
2. "DHW"
3. "Time program, DHW circulation"
Note
Only for setting "Apartment building":
"Heating circuit 1 2 3" in the header to select the
required heating circuit
Switching DHW heating off
Tap the following on-screen buttons:
1. "Menu"
2. "DHW"
3. "Set temperature, DHW"
4. for 10 °C
5. OK to confirm
30
Note
Start and stop times must be set for the second and
third time phases. These may also fall within the first
time phase.
In the energy cockpit, tap "One-off cylinder heating"
(see page 19).
4. "Individual"
5. OK to confirm
For how to set a time program, see page 14.
Note
The DHW circulation pump remains off between the
time phases.