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7) Refrigerant circuit protection
A) Klixon: The single phase compressors are equipped with a klixon which is a thermal sensitive switch
controlling the temperature of the compressor and possible overintensity.
In case of malfunction,
the klixon trips but switches on again automatically as soon as the compressor
has cooled down.
B) High Pressure Security Switch: Refrigerant line is considered as a pressure vessel.
That is why it is protected against bursts by the help of manually reset switch. It is set to 25 bars for
dryers working with R513a
C) Filter dryer: A refrigerant circuit is a closed circuit and total water removal in the refrigerant circuit is
paramount in order to obtain a correct functioning.
D) To avoid problems, the refrigerant circuit must be vacuumed before loading the refrigerant.
It is equipped with a filter dryer, which also traps any solid particles, which may have migrated into the
circuit during assembly.
E) Water-cooled dryers have a safety high-pressure switch.
In case of cooling water failure, the safety switch stops the dryer. When the safety switch has tripped out,
it has to be manually resettled before switching on the dryer.
• If a corrosive water such as sea water is to be used, the condenser must be manufactured using special
materials. If a condenser produced as a standard is used with sea water contrary to the information, the
dryer will be out of warranty.
• If the information about the chemicals in the working environment is not given to the manufacturer and
it is operated in corrosive ambient conditions (Ammonia etc.), this will void its warranty.
• In order to prevent explosions caused by freezing, water containing antifreeze should be used at the
rate required by the minimum temperatures. (Preferably ethylene glycol)
• The water pressure and flow rate should be used within the limits written in the technical datasheet.
(Pressure maximum 6 barg)
• Care should be taken not to use materials that will cause galvanic corrosion.
• The company is not responsible for any malfunctions that may occur due to water.
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