vi
• A halide torch (or any other detector using a naked flame) shall not be used.
• Electronic leak detectors may be used to detect refrigerant leaks but, the sensitivity
may not be adequate, or may need re-calibration. (Detection equipment shall be
calibrated in a refrigerant-free area.)
• Ensure that the detector is not a potential source of ignition and is suitable for the
refrigerant used.
• Leak detection equipment shall be set at a percentage of the lower flammable limit
(LFL) of the refrigerant and shall be calibrated to the refrigerant employed and the
appropriate percentage of gas (25% maximum) is confirmed.
• Leak detection fluids are suitable for use with most refrigerants but the use of
detergents containing chlorine shall be avoided as the chlorine may react with the
refrigerant and corrode the copper pipe-work.
• If a leak is suspected, all naked flames shall be removed/extinguished.
• If a leakage of refrigerant is found which requires brazing, all of the refrigerant shall
be recovered from the system, or isolated (by means of shut off valves) in a part of
the system remote from the leak. Oxygen free nitrogen (OFN) shall then be purged
through the system both before and during the brazing process.
• If refrigerant R32 is used and R32 refrigerant leakage detection sensor is connected
to the indoor unit, do not turn off the ELCB of the indoor unit except when there is a
symptom of abnormality or failure, or when performing short-term maintenance. (When
the ELCB is turned off, R32 refrigerant leakage detection sensor cannot detect the
refrigerant leakage when the refrigerant leaks, and it may lead to cause the generation
of toxic gas and fire.)
When Servicing
• Contact the sales dealer or service dealer for a repair.
• Ventilate the room by opening windows before servicing if there is a possibility of a
refrigerant leakage.
• Be sure to turn off the power before servicing.
• Turn the power OFF at the main power box (mains), wait at least 5 minutes until it
is discharged, then open the unit to check or repair electrical parts and wiring.
• Keep your fingers and clothing away from any moving parts.
• Clean up the site after you finish, remembering to check that no metal scraps or bits of
wiring have been left inside the unit.
WARNING
• This product must not be modified or disassembled under any circumstances.
Modified or disassembled unit may cause fire, electric shock or injury.
• Do not clean inside the indoor and outdoor units by users. Engage authorized
dealer or specialist for cleaning.
• In case of malfunction of this appliance, do not repair by yourself. Contact the
sales dealer or service dealer for a repair and disposal.
00_330344_2WAY_Eng.indb 5 2020/12/21 11:26:33
CAUTION
• Ventilate any enclosed areas when installing or testing the refrigeration system.
Leaked refrigerant gas, on contact with fire or heat, can produce dangerously toxic
gas.
• Confirm after installation that no refrigerant gas is leaking. If the gas comes in
contact with a burning stove, gas water heater, electric room heater or other heat
source, it can cause the generation of toxic gas and fire.
Others
When disposal of the product, do follow the precautions in “Recovery” and comply with
national regulations.
WARNING
• Do not sit or step on the unit. You may fall down accidentally.
CAUTION
• Do not touch the air inlet or the sharp aluminum fins of the outdoor unit.
You may get injured.
• Do not stick any object into the FAN CASE.
You may be injured and the unit may be damaged.
• Do not touch the fan because it automatically rotates when it detects a
refrigerant leak.
You may be injured.
SERVICING
CAUTION
• Any qualified person who is involved with working on or breaking into a refrigerant
circuit should hold a current valid certificate from an industry-accredited
assessment authority, which authorizes their competence to handle refrigerants
safely in accordance with an industry recognised assessment specification.
• Servicing shall only be performed as recommended by the equipment
manufacturer. Maintenance and repair requiring the assistance of other skilled
personnel shall be carried out under the supervision of the person competent in
the use of flammable refrigerants.
• Servicing shall be performed only as recommended by the manufacturer.
• Prior to beginning work on systems containing flammable refrigerants, safety
checks are necessary to ensure that the risk of ignition is minimised. For repair to
the refrigerating system, (2) to (6) shall be completed prior to conducting work on
the system.
(1) Work shall be undertaken under a controlled procedure so as to minimise the risk
of a flammable gas or vapour being present while the work is being performed.
(2) All maintenance staff and others working in the local area shall be instructed on
the nature of work being carried out. Work in confined spaces shall be avoided.
The area around the workspace shall be sectioned off. Ensure that the conditions
within the area have been made safe by control of flammable material.
00_330344_2WAY_Eng.indb 6 2020/12/21 11:26:34
SM830289-01_欧州向け R32 mini VRF 8,10HP SM&TRSM.indb 6SM830289-01_欧州向け R32 mini VRF 8,10HP SM&TRSM.indb 6 2021/05/07 10:08:282021/05/07 10:08:28
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