For general public use
Power supply cord of outdoor unit shall be more than 1.5 mm
2
(H07RN-F or 60245IEC66) polychloroprene
sheathed flexible cord.
• Read this “SAFETY PRECAUTIONS” carefully before servicing.
• The precautions described below include the important items regarding safety. Observe them without fail.
• After the servicing work, perform a trial operation to check for any problem.
• Turn off the main power supply switch (or breaker) before the unit maintenance.
1. SAFETY PRECAUTIONS
Read the precautions in this manual
carefully before operating the unit.
This appliance is fi lled with R32.
(Flammable Material)
• THIS AIR CONDITIONER ADOPTS THE NEW HFC REFRIGERANT (R
32
) WHICH DOES NOT
DESTROY OZONE LAYER.
R
32
refrigerant is apt to be affected by impurities such as water, oxidizing membrane, and oils because
the
working pressure of R
32
refrigerant is approx. 1.6 times of refrigerant R22. Accompanied with the
adoption
of the new refrigerant, the refrigeration machine oil has also been changed. Therefore, during
installation
work, be sure that water, dust, former refrigerant, or refrigeration machine oil does not enter into
the new
type refrigerant R
32
air conditioner circuit.
To prevent mixing of refrigerant or refrigerating machine oil, the sizes of connecting sections of charging
port on main unit and installation tools are different from those used for the conventional refrigerant units.
Accordingly, special tools are required for the new refrigerant (R
32
) units. For connecting pipes, use new
and clean piping materials with high pressure fittings made for R
32
only, so that water and/or dust does
not
enter. Moreover, do not use the existing piping because there are some problems with pressure fittings
and
possible impurities in existing piping.
CAUTION
TO DISCONNECT THE APPLIANCE FROM THE MAIN POWER SUPPLY
This appliance must be connected to the main power supply by means of a circuit breaker or a switch
with a contact separation of at least 3 mm in all poles.
Information included in the Operation
Manual and/or Installation Manual.
Service personnel should be handing this equipment
with reference to the Installation Manual.
■
Important information regarding the refrigerant used
This product contains fl uorinated greenhouse gases covered by the Kyoto Protocol. Do not vent gases into
the atmosphere. Refrigerant type:
R32
GWP
(1)
value:
675
*
(1)
GWP = global warming potential
The refrigerant quantity is in dicated on the unit name plate.
* This value is based on F gas regulation 517/2014
CAUTION
CAUTION
New Refrigerant Air Conditioner Installation
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