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Idiomas disponibles
Idiomas disponibles
2 Product description
2.1 Which nomenclature is used?
– Control: Instead of VRT 380f/2
2.2 What is the effect of the frost
protection function?
The frost protection function protects the
heating installation and flat from frost dam-
age.
At outdoor temperatures
– Below 4 °C for longer than four hours,
the control switches the heat generator
on and regulates the target room tem-
perature to at least 5 °C.
– Above 4 °C, the control does not switch
the heat generator on, but it monitors
the outdoor temperature.
2.3 What do the following
temperatures mean?
Desired temp. is the temperature to which
you want to heat the living rooms.
Set-back temp. is the level below which
the temperature in the living rooms does
not fall when outside of the time periods.
Flow temp. is the temperature at which
the heating water leaves the heat gener-
ator.
Domestic hot water temperature is the
temperature to which the domestic hot
water cylinder is to be heated.
2.4 What is a zone?
A building can be divided into multiple
areas, which are known as zones. A dif-
ferent requirement can be placed on the
heating installation in each zone.
Examples for dividing into zones:
– Underfloor heating (zone 1) and a ra-
diator system (zone 2) are available in
one building.
– A building is made up of several self-
contained residential units. Each resid-
ential unit has its own zone.
6
2.5 What is the circulation?
An additional water pipe is connected to
the domestic hot water pipe and forms a
circuit with the domestic hot water cylin-
der. A circulation pump facilitates the con-
tinuous circulation of domestic hot water
through the pipework system which means
that hot water is immediately available,
even at more distant draw-off points.
2.6 What is meant by "time
period"?
Example of heating mode in the mode:
Time-controlled
B
24 °C
21 °C
16 °C
5
16:30
A
Time
B
Temperature
1
Time period 1
2
Time period 2
You can divide a day up into several time
periods (1) and (2). Each time period can
comprise an individual start time and end
time. The time periods must not overlap.
You can assign a different desired temper-
ature (3) to each time period.
Example:
16:30 to 18:00; 21 °C
20:00 to 22:30; 24 °C
The control regulates the living rooms to
the desired temperature within the time
periods. In the times outside of the time
periods (5), the control regulates the living
rooms to the lower set-back temperature
(4) that is set.
Operating and installation instructions 0020323648_01
1
2
5
5
20:00
22:30
18:00
3
Desired temper-
ature
4
Set-back tem-
perature
5
Outside of the
time periods
3
4
A
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