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4.12
Calling up status codes
1.
Call up MENU | INFORMATION | Status.
2.
Choose between Heat pump module and Heat pump.
◁
The current operating mode (status code) is shown
on the display.
4.13
Adjusting the target cylinder temperature
Danger!
Risk of death from legionella.
Legionella multiply at temperatures below
60 °C.
▶
Have a competent person inform you
about the measures that should be taken
to protect against Legionella in your in-
stallation.
▶
Do not set any water temperatures below
60 °C without consulting the competent
person first.
Danger!
Risk of death from legionella!
If you decrease the cylinder temperature, the
risk of legionella spreading increases.
▶
Activate the anti-legionella times in the
system control and set them.
In order to achieve energy-efficient domestic hot water gen-
eration predominantly from the energy extracted from the en-
vironment, the factory setting for the desired domestic hot
water temperature must be adjusted on the system control.
▶
To do this, adjust the target cylinder temperature (De-
sired domestic hot water temperature) to between 45
and 55 °C.
◁
Depending on the source of energy obtained from the
environment, domestic hot water outlet temperatures
of between 50 and 55 °C are reached.
▶
Also switch on the electric back-up heater for the do-
mestic hot water generation so that the required 60 °C
can also be reached for the anti-legionella function.
4.14
Frost protection function
To ensure that the frost protection devices are permanently
ready for operation, you must leave the system switched on.
Another way to protect the heating installation and the
product from frost for very long switch-off periods is to drain
them completely.
▶
Consult a competent person about this.
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5
Care and maintenance
5.1
Caring for the product
▶
Clean the casing with a damp cloth and a little solvent-
free soap.
▶
Do not use sprays, scouring agents, detergents, solvents
or cleaning agents that contain chlorine.
5.2
Maintenance
An annual inspection and biennial maintenance of the
product carried out by a competent person is a prerequisite
for ensuring that the product is permanently ready and
safe for operation, reliable, and has a long service life. The
inspection may require maintenance to be carried out earlier,
depending on the results.
5.3
Reading maintenance messages
If the symbol
and a maintenance message I.XXX are
shown on the display, the product requires maintenance
work.
Example:
I.003 Service due.
The product is not in fault mode but continues to operate.
▶
Consult a competent person about this.
▶
If the water pressure is flashing at the same time, simply
add more heating water.
5.4
Checking the filling pressure of the heating
installation
You have multiple options for reading the filling pressure of
the heating installation.
–
On the basic display, as a value on the bottom right on
the display.
–
On the basic display, as a symbol on the upper edge (five
stage bars).
–
On the INFORMATION menu, as a value compared to
the minimum and maximum filling pressure.
▶
Call up MENU | INFORMATION.
◁
The value of the current filling pressure appears in
the display.
▶
Check the filling pressure in the display.
▶
We recommend a filling pressure of at least 1 bar
(0.1 MPa). If the filling pressure is lower than 0.8 bar
(0.08 MPa), top up the heating water and, in doing so,
increase the excess pressure in the heating installation.
Operating instructions 8000017440_FT
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