0020285063_05 Installation and maintenance instructions
19
–
Factory setting: 60
℃
◁
PV MAX
= High level of photovoltaic power genera-
tion. The heat pump and the immersion heater gen-
erate an increased domestic hot water temperature.
The increased domestic hot water temperature must
be between the domestic hot water temperature of
the
PV ECO
mode and 65 °C.
–
Factory setting: 65
℃
▶
Turn the rotary knob to set the mode.
INST.MENU PV
MODE
◁
You can select which function has higher priority
(photovoltaic mode or frost protection/eco mode)
▶
Select
YES
.
▶
Press the rotary knob to confirm the selection.
▶
Press the menu button.
▶
Set the required domestic hot water temperature.
▶
Turn the rotary knob to set the priority.
INST.MENU
→
PV
MODE
→
PRIORITY
.
◁
YES
: The signals from connection plugs no. 1 and
no. 2 have priority over the frost protection and eco
mode.
◁
no
: Frost protection and eco mode have priority over
the signals from connection plugs no. 1 and no. 2.
Note
When photovoltaic mode has the higher prior-
ity, domestic hot water is also heated during
periods that have not been set (e.g. holiday
mode and outside of programmed time peri-
ods).
If you only want to heat the domestic hot water
during the permitted time period, set the prior-
ity to
no
.
▶
Press the rotary knob to confirm the selection.
◁
The immersion heater is supplied with electricity in or-
der to use the energy from the photovoltaic installa-
tion.
◁
When the fan mode is activated (
FAN MODE
), op-
tion 3 can no longer be selected.
◁
The
SHED DING
function is not available.
▶
Press the menu button to return to the original display.
8.3
Reading the input data
1.
If you want to read the product's input data, you must
select this menu.
DI SPLAY
→
INST.MENU
.
2.
Press the rotary knob in the
DI SPLAY
menu.
◁
WATE R
= Domestic hot water temperature in the
central section of the domestic hot water cylinder
◁
AIR INLET
= Air temperature at the air intake
◁
T_EV APOR
= Temperature of the evaporator
◁
If
PV MODE
is deactivated:
–
SHED DING
: Connection contact no. 1/low-tar-
iff contact input (0: Contact opened; 1: Contact
closed)
–
FAN CONTR.
: Connection contact no.
2/hygrostat input (0: Contact opened; 1: Contact
closed)
◁
If
PV MODE
is activated:
–
PV ECO
: Connection contact no. 1 input (0:
Contact opened; 1: Contact closed)
–
PV MAX
: Connection contact no. 2 input (0:
Contact opened; 1: Contact closed)
3.
Press the menu button to return to the original display.
8.4
Setting the anti-legionella function
Danger!
Risk of death from legionella.
Legionella multiply at temperatures below
60 °C.
▶
Ensure that the end user is familiar with
all of the Anti-legionella measures in order
to comply with the applicable regulations
regarding legionella prevention.
The anti-legionella function heats the water in the product to
a temperature between 60 °C and 70 °C. The default fact-
ory setting for the target temperature is 60 °C and the anti-le-
gionella function is not carried out.
If the target temperature is below 60 °C, you can activate the
anti-legionella function by setting the target temperature to
a value between 60 °C and maximum 70 °C. The automatic
cycle for heating the water is activated at 22:00.
If the target temperature for the cycle is not reached within
24 hours, the cycle stops and then starts again at the next
interval deadline. If an anti-legionella cycle is interrupted by
a time period in which the back-up heater is prevented from
operating (high tariff or time programming), the anti-legion-
ella function will be restarted in the next interval deadline.
▶
Observe the applicable regulations regarding legionella
prevention.
▶
Turn the rotary knob to set the time interval (in days) for
the anti-legionella function.
SET TINGS
→
ANTI -BACT.
→
INST.MENU
.
▶
Press the rotary knob.
▶
Select the time interval between two anti-legionella func-
tion charges.
Note
The time interval can be between 0 and 99
days.
▶
Press the rotary knob to confirm the selection.
▶
Press the menu button to return to the original display.
8.5
Selecting the load relief stage
Condition
: Cable for low-tariff/high-tariff load relief connected
▶
Select the components that can be used during high-tariff
periods.
–
Heat pump only
–
Heat pump and immersion heater
▶
Turn the rotary knob to set the mode.
INST.MENU
→
SET
TINGS
→
SHED DING
.
◁
0 = No components may operate in the high-tariff
periods
◁
1 = Only the heat pump may operate in the high-tariff
periods
◁
2 = The heat pump and immersion heater may oper-
ate in the high-tariff periods
