Viessmann VITOTRONIC 100 GC1B Operations Instructions download pdf (Page 28)

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Constant temperature operation

In constant temperature operation, the

heating water is constantly heated to the

selected boiler water temperature.

Heating program

The heating program determines

whether you heat your rooms and DHW,

or only heat DHW, or whether you shut

down your heating system with frost pro-

tection monitoring.

You can select the following heating pro-

grams:

■ " "

The rooms are heated and DHW is

provided (winter mode).

■ " "

DHW is provided but there is no cen-

tral heating (summer mode).

■ " "

Frost protection for the boiler and

DHW cylinder is active, no central

heating, no DHW heating (standby

mode).

Note

A heating program for central heating

without DHW heating is not available. If

rooms are to be heated, hot water is gen-

erally also required (winter mode).

If you still only want central heating,

select the " " heating program and

set the DHW temperature to 10 °C (see

page 15). This means that you will not

heat DHW unnecessarily but the DHW

cylinder is protected against frost.

Heating circuit

A heating circuit is a sealed circuit

between the boiler and radiators, in

which the heating water circulates.

Heating circuit pump

Circulation pump for the circulation of the

heating water in the heating circuit.

Actual temperature

Current temperature at the time of the

scan; e.g. actual DHW temperature.

Boiler water temperature

See "Constant temperature operation".

Open flue operation

The combustion air is drawn from the

room where the boiler is installed.

Balanced flue operation

The combustion air is drawn from out-

side the building.

Safety valve

A safety device that must be installed by

your heating contractor in the cold water

pipe. The safety valve opens automati-

cally to prevent excess pressure in the

DHW cylinder.

Set temperature

Default temperature that should be

reached; e.g. set DHW temperature.

Terminology

5592 669 GB

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