Viessmann VD2 Series Instructions d'exploitation télécharger pdf (Page 10)

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10

Selecting the heating program (winter, summer)

Vitotronic 100, GC1

Select the required heating program

with the , or button.

When pressed, the corresponding

button is illumintaed

Central heating and domestic hot water

 The boiler is available to the heating

system and is switched on according

to demand and in accordance with

the boiler sequence

 Frost protection of the boiler

Domestic hot water only

Without function

The domestic hot water supply is

always controlled via the

Vitocontrol-S, VD2/CT3/CM2

(see below)

Standby operation

 The boiler is switched off and is no

longer availble to the Vitocontrol-S,

VD2/CT3/CM2 (i.e. drops out of the

boiler sequence)

 Frost protection of the boiler

Vitocontrol-S, VD2/CT3/CM2,

Model 300-K MW1

1.Press the heating circuit selector

button; the button is illuminated

2.Select the heating program with the

, or button.

Central heating and domestic hot water

Central heating with alternating

normal and reduced room

temperature (frost protection)

according to the selected time

program.

Domestic hot water supply (if a DHW

cylinder is installed) and DHW

circulation pump (if installed) ON

according to selected time program

Frost protection of the DHW cylinder

Domestic hot water only

No central heating

Domestic hot water supply (if a DHW

cylinder is installed) and DHW

circulation pump (if installed) ON

according to selected time program

Frost protection of the DHW cylinder

Standby operation

No central heating

No DHW supply

Please note:

The circulation pump is switched

on for a short time every 24 hours

to prevent them from seizing up.

The selected heating program

appears in the display window

for a short time.

Example

For the winter transitionary periods.

Please note:

When the button is lit, the “ ”

symbol appears in the display

window during central heating with

the normal room temperature; the

“ ” symbol is illuminated during

central heating with a reduced room

temperature higher than 3

°C / 37°F

Example

For the summer.

Please note:

DHW cylinder is connected,

“without function” is displayed.

Please note:

The circulation pumps are switched

on for a short time every 24 hours

to prevent them from seizing up.

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