Appendix
24 Operating instructions 0020262548_00
# Message Description Maintenance work Interval
4 Service ventila-
tion unit
The ventilation unit requires
maintenance work.
Refer to the operating instruc-
tions of the ventilation unit for
information on the maintenance
work required
See the operating instructions
for the ventilation unit
5 Service date
Next service on
The competent person has
entered a date on which main-
tenance is due for the heating
installation.
Inform the competent person if
maintenance work is required
Date entered in the system con-
trol
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