44
Technical terms
Sense ll – 6 720 812 775 (2014/10)
integrated heat pump). The system produces hot heating water
to heat a building and may also provide DHW heating.
Cascade
If the performance of one single heat source is not sufficient,
several appliances can be “cascaded” for heat production. The
appliances can be differently used according to the selected
cascade control and can always be controlled so that the
required performance is supplied.
Child lock
Settings in the standard display and in the menu can only be
changed if the child lock (key lock) is switched off
(
Combi boiler
A single heat appliance that can heat both heating water and
hot water.
Manual mode
In manual operation, automatic mode (the time program for the
heating system) is interrupted and the home is heated
constantly to the temperature set for manual operation.
Mixer
A heating system component that automatically ensures that
hot water can be drawn from the taps at a temperature no
higher than the temperature set on the mixer.
Reference room
The reference room is the room in the home where the
controller is installed (or if there is more than one heating
circuit, a remote control). The room temperature in this room is
fed back to the assigned heating circuit.
Switching time
A certain time at which the heating system starts to heat or hot
water is produced, for example. A switching time is a
component of a time program.
Temperature of an operating mode
A temperature that is assigned to an operating mode. The
temperature is adjustable. See the explanations on operating
mode.
Thermal disinfection
This function heats up the hot water to a temperature in excess
of 65 °C. This temperature is sufficient to kill off pathogens
(e.g. legionella). Observe the anti-scalding safety instructions.
Holiday program
The holiday program enables the settings that would ordinarily
be applied to be interrupted for a number of days. After the end
of the holiday program, the programming unit resumes
operation with the settings that would ordinarily be applied.
Flow temperature
Temperature at which the heated water flows in the central
heating system from the heat source to the heating surfaces in
the rooms. To reduce heat losses and save energy, today's
designs provide for lower flow/return temperatures, e.g. 60/
40 °C.
Temperature maintenance
If temperature maintenance is activated for a heat appliance,
the heat appliance upstream of DHW heating does not have to
be heated according to the instantaneous water heating
principle. This makes hot water available more quickly.
Time program for the heating system
This time program ensures automatic changeover between
operating modes at defined switching times.
Time program for DHW heating
This time program ensures automatic changeover between
DHW
,
DHW reduced
and
Off
operating modes at defined
switching times. It can be linked to the time program for the
heating system (
Time program for circulation
This time program ensures automatic operation of the DHW
circulation pump at defined switching times. Linking this time
program to the time program for hot water is
recommended
.
Hot water circulation pump
A hot water circulation pump allows the hot water to circulate
between the hot water heater and the taps. In this way you have
quick assess to hot water at the taps. The circulation pump can
be controlled with a time program.