Maintenance – Basic Machine
624
21.2.2 Refrigerant
Environmental damage due to chemicals!
The air conditioning system is operated with refrigerant R134a (tetrafluorethane). This
substance contains no chlorine atoms, and thus is not harmful to the ozone in the atmosphere
of the world. Nonetheless, the refrigerant must not be drained; it must be collected at a
recycling plant.
• Collect the refrigerant with a recycling plant.
• Thus do NOT separate the connecting pipes beforehand.
• Have all maintenance and repair work on the air conditioning system carried out only by
your KRONE dealer with a suitable disposal and recycling equipment.
21.2.3 Collector / dryer
Fig. 545
Since the refrigerant collector is pressurised, it is subject to the pressurised container
regulations during production and testing.
According to this regulation the pressurised tank is classified as test group II in accordance with
the permissible overpressure p in bar, the volume l in litres and the pressure product p x l.
According to Section 10 of the Pressurised Vessel Regulations these pressurised containers
must be subjected to recurring tests by an expert in accordance with section 32. In this case the
recurring tests consist, as a rule, of external inspections of the tank in use. In combination with
the inspection the refrigerant collector must be subjected to a visual inspection twice a year.
Special attention shall be given to corrosion and mechanical damage. If the container is not in a
correct state, for safety reasons it must be replaced to ensure sufficient protection to the user
and third parties due to the hazard which may be caused in handling or operating pressurised
containers.
NOTE
The ambient temperature must exceed the temperature set at the thermostat (generally +1°
Celsius) for the compressor to switch on.
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