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→ ADDITIONAL HEATING
Backup use only
The electric immersion 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 takes precedence over heating domestic hot water.
Select this option, if the fuse for the heat pump power supply is not rated for running
the compressor and the immersion heater in parallel.
With compressor (parallel operation)
The electric immersion 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 immersion heater has elapsed.
Select this option, if the fuse for the heat pump power supply is rated for running the
compressor and the immersion heater in parallel.
NOMINAL POWER
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.
Device settings → Service → Heating → Heating circuits
HEATING CURVE
ADJUST
Start by setting the minimum and maximum temperature. The flow water
temperature can be adjusted using a six-point heating curve. This menu allows you
to configure each individual point separately.
● Curve values should be tuned in during the first few heating seasons.
● An example of typical value adjustments: If the room temperature is too cold
when the outdoor temperature is −10 °C, slightly increase the flow water
setpoint at outdoor temperature points −13 °C and −7 °C. Wait for at least two
or three days to see if the change has made a difference. Adjust the curve if
necessary.
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
The heating circuit takes the heating energy either directly from the heat pump’s condenser or its buffer
tank. The Connection setting determines which method is used. This option, in turn, allows you to select
the equipment installed in the circuit.
● If valve control has been enabled, 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
ADJUST
See the description for the options under
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.
Circuit used
Direct connection, with pump
The system has a circulation pump which is controlled by the heat pump.
M8004 2123EN 23 (31)