6
Safety Information
English
Saf
ety
Inf
or
mation
Leakage detection and refrigerant
recovery
• The leakage detector shall be calibrated in a refrigerant-free
area.
• Make sure that the detector is not a potential source of
ignition.
• Leak detector shall be set at percentage of LFL of the
refrigerant and shall be calibrated to the refrigerant employed
and the appropriate percentage of the of gas (25% maximum)
is confirmed.
• The use of detergents containing chlorine shall be avoided for
cleaning because the chlorine may react with the refrigerant
and corrode the pipings.
• If leakage is suspected, open flames must be extinguished
immediately.
• If a leakage is found while in brazing, the entire refrigerant
shall be recovered from the product or isolated (e.g. using
shut-off valves). It shall not be directly released to the
environment. Oxygen free nitrogen (OFN) shall be used for
purging the system before and during the brazing process.
• The work area shall be checked with an appropriate refrigerant
detector before and during work.
• Ensure that the leakage detector is appropriate for use with
flammable refrigerants.
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
• Empty recovery cylinders shall be evacuated and cooled before
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.
• 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.
Installation location requirement of
outdoor unit
• The product must be installed outdoors.
• Be sure to observe the suggested Safety Zone. (Page 9)
• Wear protective gloves to unpack, move, install, and service
the unit to avoid your hands being injured by the edge of the
parts.
• Do not touch the internal parts (water pipes, refrigerant pipes,
heat exchangers, etc.) while running the units. And if you need
to adjust and touch the units, please observe enough time for
the unit to cool down and wear protective gloves.
• Our units shall be installed in compliance with the spaces
described in the installation manual, to ensure accessibility
from both sides and allow repairs or maintenance operations
to be carried out. If the units are installed without complying
with procedures described in the manual, additional expenses
can be asked because special harnesses, ladders, scaffolding,
or any other elevation system for repair service will not be
considered part of the warranty and will be charged to the end
customer.
• Make sure that (thaw) water runs correctly and unhindered
out of the unit at low ambient temperature. If the drainage is
exposed to subzero temperatures, additional protection must
be taken by the installer, such as installing heater cables in
the drain piping. Failing to do so, may cause severe damage
to the product and potential leakages of refrigerant into the
environment.
• Install the power cable and communication cable of the
indoor and outdoor unit at least 1m away from other electric
appliances.
• Protect the unit from rats or small animals. If an animal makes
contact with the electric parts, it can cause malfunctions,
smoke or fire. Please instruct the customer to keep the area
around the unit clean.
• Do not disassemble and alter the heater at your own discretion.
• Wear protective equipment (such as safety gloves, goggles,
and headgear) during installation and maintenance works.
• If the installation/repair technicians not be equipped with
protective equipment may get injured or threat may happen.
• To prevent ignition, never install motor-driven equipment
close to the unit.
• The applicable local, National, and European regulations shall
be observed.
Summary of Contents for AE CXYD Series
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