5 Maintenance instructions
Safety precautions
Before starting any maintenance or repair work, close the air inlet and outlet valve and switch off the
voltage.
When removing the side panels of the dryer, be aware that internal elements such as the pipes can be hot.
Therefore, wait until the dryer has cooled down before removing the side panels.
Dryers of FX type contain refrigerant HFC.
When handling refrigerant, all applicable safety precautions must be observed. Please be aware of
the following points:
• Contact of refrigerant with the skin will cause freezing. Special gloves must be worn. In case of
contact with the skin, the skin should be rinsed with water. On no account may clothing be removed.
• Fluid refrigerant will also cause freezing of the eyes; safety glasses must hence be worn.
• Refrigerant is hazardous. Do not inhale refrigerant vapours. Check that the working area is adequately
ventilated.
Local legislation
Local legislation may stipulate that:
• Work on the refrigerant circuit of the cooling dryer or on any equipment which influences its function
must be undertaken by an authorised control body.
• The installation is checked once a year by an authorised control body.
Instructions
• Keep the dryer clean.
• Inspect and clean the filter of the automatic condensate drain monthly, in dusty environment drain
weekly:
• Release the pressure in the dryer by pressing the TEST push button on top of the condensate
drain (before switching off the supply voltage).
• Switch off the voltage
• Remove the filter from the automatic drain and clean it with an air jet, working from inside to
outside
• Reinstall the filter
• Brush or blow off the finned surface of the condenser monthly. Do not use water or solvents.
• Apply the drain wear kit once per year (see Spare Parts list for part number).
These maintenance intervals are intended for well ventilated, non-humid and not dusty
environments.
For particularly high humidity ambient conditions, the intervals should be halved.
Instruction book
26 2920 7112 40
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