8 Maintenance
Warning
In order to avoid electrical shock, fire or other damage that might occur in connection with faulty use
and operation of the unit, it is important to consider the following:
• The system must be installed according to the installation instructions.
• Insulate mains supply before service or cleaning of the heat recovery unit.
• Make sure the filter is mounted in its place before running the system.
• Maintenance must be performed according to the instructions.
8.1 Changing air filters
Indicated as “
filter to be changed
” in the control panel, 1-2 times per year or as necessary
The bag filter cannot be cleaned and must be changed as necessary. New filters can be ordered from
Systemair.
Operation time between filter changes must be re-set after filter change, see Alarm settings, Alarm limits,
Service alarm in the Control panel.
Initial pressure drop for TA-450 to TA-3000 is approx. 60Pa and 70 Pa for TA-4500. The final pressure for
all sizes is 200-220 Pa.
8.2 Checking the fan
Check the fan (B) once a year.
Fig. 6 Internal components
Even if the required maintenance, such as changing of filters is carried out, dust and grease may slowly
build up inside the fan. This will reduce the efficiency.
The fan may be cleaned with a cloth or a soft brush. Do not use water. White spirit can be used to remove
accumulations which are otherwise difficult to remove. Allow drying properly before use.
Operation and Maintenance Instructions
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Systemair Sverige AB
