Structural Concepts Oasis CN33R handleiding

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Structural Concepts

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Handleiding

WARNING! TURN OFF CASE BEFORE PERFORMING PREVENTIVE MAINTENANCE!

Maintenance and Service Notes

Recovery

• When removing refrigerant from a system, either for servicing or decommissioning, it is recommended

good practice that all refrigerants are removed safely.

• When transferring refrigerant into cylinders, ensure that only appropriate refrigerant recovery cylinders

are employed. Ensure that the correct number of cylinders for holding the total system charge is avail-

able. All cylinders to be used are designated for the recovered refrigerant and labeled for that refriger-

ant (i.e., special cylinders for the recovery of refrigerant). Cylinders shall be complete with pressure-

relief valve and associated shut-off valve in good working order. Empty recovery cylinders are evacu-

ated and, if possible, cooled before recovery occurs.

• The recovery equipment shall be in good working order with a set of instructions concerning the equip-

ment that is at hand and shall be suitable for the recovery of all appropriate refrigerants including,

when applicable, FLAMMABLE REFRIGERANTS. In addition, a set of calibrated weighing scales shall

be available and in good working order. Hoses shall be complete with leak-free disconnect coupling

and in good condition. Before using the recovery machine, check that it is in satisfactory working or-

der, has been properly maintained and that any associated electrical components are sealed to pre-

vent ignition in the event of refrigerant release. Consult manufacturer if in doubt.

• The recovered refrigerant shall be returned to the refrigerant supplier in the correct recovery cylinder,

and the relevant waste transfer note arranged. Do not mix refrigerants in recovery units and especially

not in cylinders.

• If compressors or compressor oils are to be removed, ensure that they have been evacuated to an

acceptable level to make certain that FLAMMABLE REFRIGERANT does not remain within the lubri-

cant. The evacuation process shall be carried out prior to returning the compressor to the suppliers.

Only electric heating to the compressor body shall be employed to accelerate this process. When oil is

drained from a system, it shall be carried out safely.

PREVENTIVE MAINTENANCE - TO BE PERFORMED BY TRAINED SERVICE PROVIDERS ONLY - 5 of 7

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