19
ENGLISH
Labelling
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The parts shall be labelled to ensure that they have been decommissioned and emptied of refrigerant.
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The labels shall be dated.
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Make sure that the labels are affixed on the system to notify it contains flammable refrigerant.
Recovery
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When removing refrigerant from the system for servicing or decommissioning, it is recommended to remove the entire
refrigerant.
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When transferring refrigerant into cylinders, make sure that only the refrigerant recovery cylinders are used.
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All cylinders used for the recovered refrigerant shall be labelled.
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Cylinders shall be equipped with pressure relief valves and shut-off valves in a proper order.
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The recovery system shall operate normally according to the specified instructions and shall be suitable for refrigerant
recovery.
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In addition, the calibration scales shall operate normally.
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Hoses shall be equipped with leak-free disconnect couplings.
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Before starting the recovery, check for the status of the recovery system and sealing state. Consult with the manufacturer
if suspected.
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The recovered refrigerant shall be returned to the supplier in the correct recovery cylinders with the Waste Transfer Note
attached.
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Do not mix refrigerants in the recovery units or cylinders.
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If compressors or compressor oils are to be removed, make sure that they have been evacuated to the acceptable level to
ensure that flammable refrigerant does not remain in the lubricant.
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The evacuation process shall be performed before sending the compressor to the suppliers.
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Only the electrical heating to the compressor body is allowed to accelerate the process.
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Oil shall be drained safely from the system.
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Never install a motor-driven equipment to prevent ignition.
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Empty recovery cylinders shall be evacuated and cooled before recovery.
Installation location requirements
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The outdoor unit shall be installed in an open space that is always ventilated.
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The local gas regulations shall be observed.
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For installation inside a building (this applies either to indoor or outdoor units installed inside) a minimum room floor
area of space conditioned is mandatory according to IEC 60335-2-40:2018 (see the reference table into either the indoor
or outdoor unit installation manual).
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To handle, purge, and dispose the refrigerant, or break into the refrigerant circuit, the worker should have a certificate
from an industry-accredited authority.
