Installer reference guide / Mono tank integrated type 10
Labelling
• The parts shall be labeled to ensure that they have been decommissioned and emptied of refrigerant.
• The labels shall be dated.
• Make sure that the labels are affixed on the system to notify it contains flammable refrigerant.
Refrigerant recovery
• When removing refrigerant from the system for servicing or decommissioning, it is recommended to remove the
entire refrigerant.
• When transferring refrigerant into cylinders, make sure that only the refrigerant recovery cylinders are used.
• All cylinders used for the recovered refrigerant shall be labelled.
• Cylinders shall be equipped with pressure relief valves and shut-off valves in a proper order.
• The recovery system shall operate normally according to the specified instructions and shall be suitable for refrigerant recovery.
• In addition, the calibration scales shall operate normally.
• Hoses shall be equipped with leak-free disconnect couplings.
• Before starting the recovery, check for the status of the recovery system and sealing state. Consult with the
manufacturer if suspected.
• The recovered refrigerant shall be returned to the supplier in the correct recovery cylinders with the Waste transfer
note attached.
• Do not mix refrigerants in the recovery units or cylinders.
• 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.
1.5 Installation location requirement of indoor unit
• The unit shall be installed in an open space that is always ventilated.
• The local gas regulations shall be observed.
• 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).
• To handle, purge, and dispose the refrigerant, or break into the refrigerant circuit, the worker should have a certificate
from an industry-accredited authority.
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