Device settings → Service → Heating → Additional heating
Backup use only
The electric heater will be switched on if:
1. The outdoor temperature is below +5 °C (freezing protection).
2. An alarm prevents the compressor from starting (backup operation).
In backup use, space heating has priority over domestic hot water heating. Select
this option, if the fuse for the heat pump power supply is not rated for running the
compressor and the electric heater in parallel.
With compressor (parallel operation)
The electric heater will be switched on if:
1. The outdoor temperature is below +5 °C (freezing protection).
2. An alarm prevents the compressor from starting (backup operation).
3. The target temperature for flow water from the heat pump has not been
reached, and the start delay for the electric heater has elapsed.
Select this option, if the fuse for the heat pump power supply is rated for running the
compressor and the electric heater in parallel.
Nominal output of
power stages
The rated output for the power stages in the condenser circuit’s in-line heater.
There can be three power stages. The value is used for assessing electrical power
consumption and in functions that restrict the heat pump’s electrical current.
4.4 Heating circuits
Device settings → Service → Heating → Heating circuits
Heating curve
Start by setting the minimum and maximum temperature. The flow temperature can
be adjusted using a six-point heating curve. This menu allows you to configure each
point separately.
● See section
Heating
.
Preset heating
curve
With this function, you can automatically create a heating curve between the
minimum and maximum flow water temperature. Set the minimum and maximum
temperature values in the heating circuit’s settings (see section
Heating
).
Device settings → Service → Heating → Heating circuit 1
Select the equipment used in the heating circuit. Note that the
Heating buffer sensor
setting determines
the heat source used by heating circuits (condenser or buffer tank).
● If you enable 3-way valve control, the option for inverted valve control will also be displayed.
● The settings for
Circuit 2
and
3
are identical to
Circuit 1
settings.
Heating curve
See
Heating circuits
.
No
The circuit is not in use.
Direct connection
The heat pump is connected directly to the building’s heating system. The system
has no circulation pump or control valve that would be controlled by the heat pump.
Direct connection, with pump
The system has a circulation pump which is controlled by the heat pump.
Circuit in use
3-way valve
The system has a circulation pump and a 3-way control valve, both of which are
controlled by the heat pump.
M8004 2308EN
25 (49)