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→ Additional heating
After compressor
The electric immersion heater will be switched on, if:
1. The DHW tank temperature is below 5 °C (freezing protection)
2. An alarm prevents the compressor from starting (backup operation)
3. The target temperature for the DHW tank is not reached, and the compressor is
switched off as it reaches the bounds of its operating envelope (there is a short
delay between switching off the compressor and switching on the heater).
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 DHW tank temperature is below 5 °C (freezing protection),
2. An alarm prevents the compressor from starting (backup operation),
3. The target temperature for the DHW tank is not reached, and the compressor is
switched off as it reaches the bounds of its operating envelope (there is a short
delay between switching off the compressor and switching on the heater).
4. The target temperature for the DHW tank 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 → Measurements
The Measurements view provides a summary of all measurements, activation threshold
values, and target values.
→ Hardware inputs/outputs
The
Hardware inputs/outputs
view shows the details of the controller’s physical inputs and outputs as
they are (without conversions). For example, temperature input values are given as resistance values,
and not converted into temperature values.
● You can also change the type of each input or the type of temperature sensor connected to the input.
You can also set the beta value (coefficient).
● When you connect an NTC temperature sensor, remember to set the sensor’s beta value.
Device settings → Service → Usage priority
Device settings → Service → Usage priority
Priorization
This option determines which has the higher priority: domestic hot water heating or
space heating.
This option is set to Hot water by default. The following information applies when
Hot water
has been selected.
Max. heating time
for prioritized target
If Hot water has priority, this option will determine the longest continuous period for
heating domestic hot water.
● If the domestic hot water temperature does not reach its setpoint within this
period and the space heating circuit requests heating, the heat pump will switch
to space heating. Space heating will continue at least until the minimum space
heating time (set below) has elapsed.
● Usually, the time should be set to 20–120 minutes.
Max. heating time
for secondary
targets
The shortest time for space heating after the maximum heating time for domestic hot
water has elapsed.
● Usually, the time should be set to 15–60 minutes.
26 (31) M8004 2123EN