Maintenance - Profroid QUIETCO2OL MC Notice D'instruction

MAINTENANCE

Warning
This unit restarts automatically.
Before any intervention on the unit, operator must make sure that the
main switch is safely secured.
instructions for maintenance
Operating
For all maintenance operations, the following instructions must be followed:
– Unit door must only be opened after the main switch has been cut-off and the fans
have stopped completely.
– The safety HP can be accessed when the door is opened.
– Then, access to service ports for connecting the pressure gauge is possible.
Recommendations
If the unit is stopped for long periods of time, the fan motors should be run for at least two
hours each week.
Every month, carry out an operating check on:
– Cleanliness of coil (OUTDOOR versions)
– Refrigerant level Minimum every year:
– Clean the gas cooler coil (OUTDOOR versions)
– Voltage supply
– Pressure switch cut-off values
– Working pressure and temperature of each compressor
– Tightening of compressor fixations
– Oil levels in each compressor
– Humidity in the circuits (through the sight glass or oil analysis)
– Airtightness of the unit
Every 6 months in addition to the monthly checks:
– Carry out an oil analysis.
– If necessary, empty and exchange the cartridges of the filter drier.
Every year in addition to the previous checks, it is necessary to : previous audits
– Replace or clean the filters (suction, coalescent) and replace the drier cartridges.
– Check the max. pressure drop on individual filters before change.
– Oil Separator 0.9 Bar (If Active Oil Management Option)
– Suction filter if installed 0.5 bar
Instructions or recommendations appearing in the various technical advice notes and
manufacturer's service manuals should be followed precisely. Please contact our Technical
Department for any additional information.
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