Viessmann VD2 Series Operations Instructions download pdf (Page 21)

Settings

Changing the domestic hot water temperature

Vitocontrol-S, VD2/CT3/CM2

In a multi-boiler system the Vitotronic 100, GC1 is without function. The

domestic hot water temperature is set on the Vitocontrol-S, VD2/CT3/CM2.

Desired DHW temp.

ºC

1. Open the hinged cover on the

programming unit.

12. Press ; the previous

temperature setting flashes

in the display window.

13. / Press the / button un-

til the required temperature

value appears.

14. Confirm by pressing ;

the temperature value stops

flashing and is stored.

The display changes and

shows the boiler

temperature.

15. Close the hinged cover on the pro-

gramming unit.

Setting the energy saving mode for the holiday period

Vitocontrol-S, VD2/CT3/CM2

If you want to set the heating system to the minimum energy consumption,

e.g. while you are away on holiday, choose the holiday program or the standby

mode.

Holiday program

When the ”rw” heating program is

set, central heating takes place dur-

ing the holiday program with the se-

lected ”reduced room temperature”,

but without domestic hot water heat-

ing.

The preset time program for central

heating and domestic hot water is

active on the dates of your departure

and return.

When the ”w” heating program is

set, only frost protection of the

heating system takes place during the

holiday program. Domestic hot water

takes place according to the preset

heating program on the dates of your

departure and return.

Please note:

The control unit is set up so that

the holiday program is effective

for all heating circuits.

If you require this to be changed,

please contact your heating

contractor.

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Viessmann VD2 Series Operations Instructions Page 21

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