Pfannenberg DTS 6X2E Mode D'emploi page 112

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6.2 General
The refrigeration circuit is a maintenance-free, hermetically sealed system.
The units are 100%-tested at the factory.
Manufacturer recommendation to the owner for maintenance work:
• Perform maintenance work regularly every 12 months according to the maintenance checklist, see section "Maintenance
schedule", Page 48.
– Shorter maintenance intervals are required for air/water heat exchangers that cool in ambient air containing oil
and dust. A shorter guide value of two to six months applies between the maintenance intervals.
• The functions of the Pfannenberg filters are optimally adapted to the cooling units. Therefore, the use of Pfannenberg
filters has positive effects on the scope of the maintenance work.
Operating Manual | Attachment and Installing Cooling Units X-Series | Premium Controller – 230 V | 086100133 47/65