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Appendix
A Operator level – overview
Setting level
Heating installation
Pressure in the heating in-
stallation
Heating flow temperature
B Troubleshooting
Fault
Product does not
The gas isolator cock installed on-site
start up:
and/or the gas isolator cock on the
product is closed.
– No hot water
– Heating does
The cold water stop cock is closed.
The power supply in the building is dis-
not heat up
connected.
The product is switched off.
The heating flow temperature or hot
water temperature has been set too
low.
The system pressure is insufficient.
Low water pressure in the heating in-
stallation (fault code: F.22).
The system pressure is too high.
There is air in the heating installation.
0020224356_00 HOME Operating instructions
Values
Unit
Min.
Max.
Current value
bar
1
1.5
℃
Current value
38
Preset
in the
system
Cause
Appendix
Increment, select
0.1
1
Measure
Open both gas isolator cocks.
Open the cold water stop cock.
Check the fuse in the build-
ing. The product automatically
switches on after the power
supply is restored.
Switch on the product (→ "Switch-
ing on the product" section).
Set the heating flow temperat-
ure and hot water temperature (→
"Setting the heating flow temper-
ature" section/→ "Setting the hot
water temperature" section).
Fill the heating installation (→
"Filling the heating installation"
section).
If the pressure drops frequently,
contact your competent person
about this.
Purge a radiator in order to re-
duce the pressure in the heating
installation, or contact your com-
petent person about this.
Purging the radiators
If the problem occurs again: In-
form the competent person
Factory set-
tings
60
15
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