Samsung AR RXFP Series Installation Manual page 7

to notify it contains flammable 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.
• Empty recovery cylinders shall be evacuated and
cooled before recovery.
• 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.
• The evacuation process shall be performed before
sending the compressor to the suppliers.
• Only the electrical heating to the compressor body
is allowed to accelerate the process.
• Oil shall be drained safely from the system.
• For installation with handling the refrigerant
(R-32), use dedicated tools and piping materials.
Because the pressure of the refrigerant, R-32 is
approximately 1.6 times higher than that of R-22,
failure to use the dedicated tools and piping
materials may cause rupture or injury. Furthermore,
it may cause serious accidents such as water
leakage, electric shock, or fire.
• Never install a motor-driven equipment to prevent
ignition.
Power supply line, fuse, or circuit
breaker
• Always make sure that the power supply is
compliant with current safety standards. Always
install the air conditioner in compliance with
current local safety standards.
• Always verify that a suitable grounding
connection is available.
• Verify that the voltage and frequency of the
power supply comply with the specifications and
that the installed power is sufficient to ensure
the operation of any other domestic appliance
connected to the same electric lines.
• Always verify that the cut-off and protection
switches are suitably dimensioned.
• Verify that the air conditioner is connected to the
power supply in accordance with the instructions
provided in the wiring diagram included in the
manual.
• Always verify that electric connections (cable
entry, section of leads, protections...) are
compliant with the electric specifications and
with the instructions provided in the wiring
scheme. Always verify that all connections comply
with the standards applicable to the installation
of air conditioners.
• Be sure not to perform power cable modification,
extension wiring, and multiple wire connection.
– It may cause electric shock or fire due to poor
connection, poor insulation, or current limit
override.
– When extension wiring is required due
to power line damage, refer to "Step 2.2
Optional: Extending the power cable" in the
installation manual.
English 7