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V1.0 1/2021
Important:
the overheating is carried out with the heat source determined by the selected
operational program, e.g. P1
–
compressor, P2
–
boiler).
Note:
in case the overheating is not carried out within 12 hours, the function is switched off and
normal operation is switched on.
4. Fast water heating:
Program P5 provides the function of fast (simultaneous) water heating, where
both heat sources are operated (heat pump and electric heating element in P5 programme). This
function is performed by pressing and holding the
key for 20 seconds. The light indicator on
the HT key flashes until the set water temperature is reached. The function can be interrupted by
pressing the HT key again.
Modes of operation
1.
Water heating with the compressor only (P5):
the water is heated with the compressor, until
the set temperature is reached or until the temperature of the inlet air remains above the min.
operational temperature. When the temperature of the water in the water tank drops for 5
°
C, the
compressor starts the heating process again. If the ambient air temperature falls below the selected
value, the compressor switches off for about 30 minutes for safety reasons or until a higher ambient
temperature is achieved. The heating of water is carried out in the P5 program by means of a
compressor.
2.
Water heating with the electric heater (P3):
the water is heated by means of the electric
heater until the set water temperature is reached. The active and safety thermostat of the electric
element is limited to 65
°
C. Because the temperature sensor is installed under the electric heating
element, the temperature shown on the display can deviate from the actual set temperature.
3.
Water heating with an active PV signal (P6):
The heat pump is heating water to the set
temperature with the compressor (automatic mode of operation). The operation of the heat pump
depends on the air temperature.
In P6 programme the PV (photovoltaic) signal is also active, which
means that the water is heated to a higher temperature (the set tempe value set in
parameter L6 up to max. 65
°
C). This mode of operation is only active if the PV signal is also active.
4.
Bivalent operation:
When the heat pump is in bivalent operation, the water is additionally
heated with an electric heater. The bivalent temperature is b5
°
C and -5
°
C (parameter L1).
Parameter display and setting
We enter the parameter menu by shortly pressing the
and
key simultaneously. For
browsing through the menu we use one of the keys individually.
8 seconds after the desired parameter has been selected, the value of the selected parameter is
displayed for 10 seconds. After that the display reverts to the main menu and shows the current
water temperature in the storage tank.
Parameter
Description
Range
Default settings
L0
Evaporation temperature in
°C
-15
÷
95 °C
-
L1
Bivalent temperature in °C
-15°C
–
30°C
-12
L2
Overheating time interval
in days
1
–
99 days
14
L3
Customer service
-
-
L4
Switch-off temperature
(hysteresis)
1
°
C to 20
°
C
5
°
C
Содержание WPA 233 E-LF
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