INSTALLATION AND SERVICE MANUAL FOR PROFESSIONALS
Maintenance and troubleshooting: General maintenance instructions
7. Disconnect both the ΔPa measuring device and the computer. Adjust the valves in each
INFO
The setting routine described above only describes the first, orientating part of the system
setting.
Please also note the following:
• Fine-tune the valves in all rooms until the desired air volume has been reached in each
• Check the main air volume according to the instructions above in this section, as more
• Make sure that the extract air volume is always at least 5 % higher than the supply air
Maintenance and troubleshooting
General maintenance instructions
To ensure that the unit always meets the technical requirements, preventive maintenance
activities have to be carried out at specified intervals. This can prevent breakdowns and
inefficient operation and maximise the service life of the unit, i.e. to 10 years or more.
It is particularly important to note that maintenance intervals for filters can vary depending
on the specific environment. Moving parts are subject to wear and tear and need to be
replaced when they are worn out, depending on their specific environment.
The factory warranty is only valid if preventive maintenance activities have been carried out
and documented. This documentation can be in form of a written maintenance protocol.
Risk of electric shock!
You can be severely injured by an electric shock.
• Always disconnect the unit from the mains by removing the mains plug from the socket
The following parts require preventive maintenance:
Scope of
maintenance
Maintenance interval Task
Every 6 months
Annually
Every 2 years
room to ensure that the desired amount of air can be supplied in each room.
room.
extensive valve settings can have a major influence on the main air volume.
volume during adjustment in order to create the conditions for a mass balance in the
system.
DANGER
before opening the unit!
Check the filters. Replace filter(s) if
required.
Changing the filter
Inspecting and cleaning the fans
Inspecting and cleaning the heat ex-
changer
Inspecting and cleaning the bypass Trained specialist personnel
Cleaning the internal air duct
Checking and cleaning drip tray,
drain and drain hose
To be carried out by:
User
User
Trained specialist personnel
Trained specialist personnel
Trained specialist personnel
Trained specialist personnel
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