41
5.2
Checklist B Maintenance work for skilled technicians
Maintenance work Enter result
The listed maintenance work must be carried out in accordance with the components actually available.
Comments on status using informal protocol
No. Components
Annually
Result
20____
20____
20____
20____
20____
1
Fan / ventilation unit
Cleaning of components
carried out?
Fan
Enthalpy exchanger
Air-contacting surfaces
on unit
Yes / No /
N/A
Frost protection / dew device
operational?
Yes / No /
N/A
Structure-borne sound
transmission, are fasteners
tight?
Yes / No /
N/A
Are status displays
operational
Yes / No /
N/A
2
Electrical controls
Cable connections and
clamping assemblies secure?
Yes / No /
N/A
Are the regulating and control
units operational?
Yes / No /
N/A
3
Air duct / insulation
Has cleaning (if necessary)
been carried out? Check OK?
For cleaning when needed,
see VDI 6022
Yes / No /
N/A
Insulation and moisture
barrier OK?
Yes / No /
N/A
Are flexible connections
between unit and air duct
operational?
Yes / No /
N/A
4
Fan, ventilation unit, filter,
filter status
Stipulated filter class adhered
to?
Yes / No /
N/A
5
Exhaust air / supply air
passage
Stipulated filter class adhered
to?
Yes / No /
N/A
Filter, filter status OK?
Yes / No /
N/A
Airflow volumes according to
protocol OK?
Yes / No /
N/A
6
Overflow air vents
Open cross section provided?
All openings unrestricted
Yes / No /
N/A
No structure-borne and
airborne sound transmission?
Yes / No /
N/A
