8 Start-up
36
Installation and maintenance instructions Hydraulic Station 0020291544_01
8.9
Setting the anti-legionella function
▶
Set the anti-legionella function using the system control.
To ensure sufficient anti-legionella protection, the electric
back-up heater must be activated.
Condition
: Internal electric back-up heater deactivated or external back-up
heater
The anti-legionella function can be used without a back-up
heater in the outdoor temperature range of -10 °C to +30 °C;
outside of this temperature range, the function can only be
used with an activated internal or external back-up heater.
An external back-up heater must be protected against over-
heating, for example, so that it is intrinsically safe. An extern-
al back-up heater must be connected to contact
X14
via a
cut-off relay. On the indoor unit's control, the setting must be
converted to the external back-up heater under
MA relay
.
Menu
→
Installer level
→
Configuration
.
8.10
Calling up the installer level
1.
Press
and
at the same time.
2.
Navigate to
Menu
→
Installer level
and confirm by
pressing
(
OK
).
3.
Set the value
17
and confirm by pressing
.
8.11
Checking the configuration
You can recheck and set the most important system para-
meters. Call up
Configuration
to configure the menu item.
Menu
→
Installer level
→
Configuration
.
8.12
Calling up statistics
Menu
→
Installer level
→
Test menu
→
Statistics
You can use this function to call up the statistics for the heat
pump.
8.13
Displaying the filling pressure in the building
circuit
The product has a pressure sensor in the heating circuit and
a digital pressure display.
▶
Select
Menu Live Monitor
to display the filling pressure
in the building circuit.
8.14
Checking function and leak-tightness
Before you hand the product over to the end user:
▶
Check that the heating installation (heat generator and
system) and the domestic hot water pipes are leak-tight.
▶
Check whether the drain pipework for the purging con-
nections has been installed correctly.
8.14.1 Checking the heating mode
▶
Start check programme P.04.
8.14.2 Checking the domestic hot water generation
▶
Check whether the cylinder is purged and the domestic
hot water temperature is reached.
8.15
Floor drying
Caution.
Risk of damage to the product caused by
impermissible purging
Without purging the heating circuit, the sys-
tem may become damaged.
▶
If the screed drying is activated without a
system control, purge the system manu-
ally. No automatic purging takes place.
You can use this function to "dry heat" freshly laid screed
in accordance with the construction regulations, according
to a defined time and temperature schedule. To do this, the
outdoor unit must be available and connected. The system
control does not have to be connected for this.
It is activated via
Installer level
→
Resets
. See overview of
the installer levels in the appendix.
When screed drying is activated, all the selected operating
modes are interrupted. The function controls the flow tem-
perature of the controlled heating circuit according to a pre-
set programme, regardless of the outdoor temperature.
The display shows the target flow temperature. You can
manually set the current day.
Days after starting the func-
tion
Target flow temperature for
this day [°C]
1
25
2
30
3
35
4
40
5
45
6
–
12
45
13
40
14
35
15
30
16
25
17
–
23
10 (frost protection function,
pump in operation)
24
30
25
35
26
40
27
45
28
35
29
25
The day is always changed at 00:00, irrespective of when
the function starts.
After a mains Off/On, screed drying starts with the last active
day.
The function ends automatically when the last day of the
temperature profile has elapsed (day = 29) or if you set the
start day to 0 (day = 0).
