4 Operation
6
Operating instructions
multiMATIC
0020255037_00
3.2.4
Hot water generation
A temperature sensor measures the temperature of the wa-
ter in the domestic hot water cylinder and forwards the val-
ues to the control. At a low domestic hot water temperature,
the control increases the temperature in the domestic hot
water circuit and thus heats the water in the domestic hot
water cylinder to the set domestic hot water temperature.
3.2.5
Circulation
If a circulation pump is installed in the heating installation,
the draw-off points will provide hot water more quickly. The
circulation pump pumps hot water through the secondary
return pipes in the circuit and to the draw-off points.
3.3
Zones
A building is divided into several zones if the heat demand
differs between different sections of the building.
–
If underfloor heating and radiator heating are installed in
a house.
–
If a house contains more than one independent residen-
tial unit.
If more than one zone is available, the controller controls the
available zones.
3.4
Hybrid manager
If you have connected a heat pump, the hybrid manager
attempts to cover the declared energy requirement under
the considerations of the cost optimisation and the technical
conditions.
Note
To ensure that the heat pump and the boiler can
work effectively and in synch with one another,
the tariffs (
→
Page 15) must be set correctly. If
the tariffs are set incorrectly, this may result in
increased costs.
If the system declares an energy requirement, the hybrid
manager switches on and forwards the energy requirement
to the heat generator. The hybrid manager decides which
heat generator to operate based on the tariffs that are set in
relation to the energy requirement.
3.5
Frost protection function
The frost protection function protects the heating system and
apartment from frost damage. The frost protection function
monitors the outside temperature.
If the outside temperature
–
falls below 4 °C, the controller switches the heat gener-
ator on after a frost protection delay time, and brings the
target room temperature to 5 °C.
–
rises above 5 °C, the controller does not switch the heat
generator on but monitors the outside temperature.
Note
The competent person can set the frost protection
delay time.
3.6
Preventing malfunctions
▶
Ensure that air can circulate freely around the controller,
and that the controller is not covered by furniture, cur-
tains or other objects.
▶
Ensure that all radiator valves in the room where the con-
troller is fitted are fully open.
3.7
Identification plate
The identification plate is located inside the product and is
not accessible from the outside.
3.8
Serial number
You can call up the serial number to the display under
Menu
→
Information
→
Serial number
. The 10-digit article number
is located in the second line.
3.9
CE label
The CE label shows that the products comply with the basic
requirements of the applicable directives as stated on the
identification plate.
The declaration of conformity can be viewed at the manufac-
turer's site.
4
Operation
4.1
Operating structure
4.1.1
Adjustment and display levels
The product has two adjustment and display levels.
The end user level contains information and setting options
that you require as the end user.
The installer level is reserved for the competent person. It is
protected by a code. Only competent persons may change
any settings in the installer level.
Operating levels (
→
Page 21)
4.1.2
Menu structure design
The menu structure consists of several selection levels and a
setting level.
You can always use the selection button
Menu
to access
selection level 1 from the basic display.
You can use the selection button
Op. mode
to directly ac-
cess the setting level
Operating mode
.
The lowest level is always the setting level.
