INSTALLATION
Commissioning
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20
30
40
20
50
60
70
80
90
1917 18 21 22 23 24 25
0
10
0
20
-20
15
10
5
-5
-10
-15
Y
X 1
Y
X 2
1
1
1
2
3
4
5
26�03�01�1917
Y Flow temperature [°C]
X 1 Room temperature [°C]
X 2 Outside temperature [°C]
1 Room temperature sensor influence at K = 10 and S = 1.2
and control deviation +/- 2 K
2 Heating curve S = 1.2
3 Weather-compensated set flow temperature a
t
ϕA = -10 °C
4 Weather-compensated set flow temperature a
t
ϕA = 0 °C
5 Weather-compensated set flow temperature a
t
ϕA =
+10°C
23 HEATING LIMIT
Heat pump application limit
The heat pump is switched off if the outside temperature drops
below the selected lower application limit for heating.
Only the electric booster heater provides central heating.
24 DUAL-MODE HTG
The dual-mode temperature of the heat pump for heating oper-
ation
Below this outside temperature, the electric booster heater is
added for central heating, subject to load.
25 DHW LIMIT
Heat pump application limit
The heat pump is switched off at outside temperatures below the
selected lower DHW application limit.
Only the electric booster heater provides DHW heating.
26 DUAL-MODE DHW
The dual-mode temperature of the heat pump for DHW operation
Below this outside temperature, the electric booster heater is
added for DHW heating, subject to load.
27 DHW ECO
DHW learning function
Setting OFF
When heating DHW, the system automatically adjusts itself to the
required DHW temperature (self-learning function).
The electric booster heating system will be added as booster stage
as soon as the heat pump is shut down in DHW mode via the HP
sensor or via the hot gas temperature limit (130 °C). If the flow
temperature of 70 °C is achieved in this operating mode, DHW
heating will be terminated, and the set DHW temperature is over-
written with the actual DHW temperature.
Setting ON
DHW heating will be terminated and the set DHW temperature is
overwritten with the actual DHW temperature, as soon as the heat
pump is shut down in DHW mode via the high pressure sensor or
via the hot gas temperature limit (130 °C). This operating mode
saves energy, as DHW is exclusively heated by heat pump.
28 DHW HYSTERESIS
This determines the switching hysteresis for DHW operation.
- Starting DHW heating at the set DHW temperature minus the
hysteresis value.
29 DHW CORRECTION
The DHW temperature is measured in the bottom third of the
cylinder. The DHW outlet temperature is approx. 3K higher than
the measured temperature. This deviation is corrected and can be
calibrated, if required.
30 PASTEURISATION
The DHW cylinder is heated daily at 01:00 h to 60 °C, if pasteurisa-
tion has been enabled. Pasteurisation can only be achieved with
the heat pump and direct electric heating (internal DHC stages).
31 CNTRL DYNAMIC
Setting range 0 to 30
The selected control dynamic is a measure of the switching interval
between the compressor and the booster heating stages. Nor-
mally, the selected response time should be sufficiently fast and
without oscillation. Heating systems that respond quickly require
a lower value, whilst very slow responding systems require you
to set a higher value.
32 COMP IDLE TIME
After a heat pump has been switched OFF, an idle time is set as
protection for the compressor. The default idle time of 20 minutes
should normally not be reduced. Where a reduction is required
because of adjustments or repair work, reset the idle time again
to 20 minutes after completing the necessary work.
33 REM IDLE TIME
Remaining idle time
Pressing PRG enables you to scan the compressor idle time.
34 SINGLE PHASE
This parameter must always be set to ON for single phase appli-
ances.
35 QUICK START
During commissioning, you can test the heat pump function by
triggering a heat pump quick start. When this parameter is start-
ed, OFF appears at the bottom of the display. Pressing PRG in-
itiates a quick start. The respective pumps are started after the
heat pump start. The value 60 is visibly counted down to 0 on the
display; then the display shows ON.
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