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IMPORTANT NOTICE
• For details on how to install the indoor units, refer to the installation manual accompanying the indoor units.
1 SAFETY PRECAUTIONS
For general public use
Power supply cord of outdoor unit shall be 1.5 mm
2
(H07RN-F or 60245IEC66) polychloroprene sheathed flexible cord.
CAUTION
New Refrigerant Air Conditioner Installation
• THIS AIR CONDITIONER ADOPTS THE NEW HFC REFRIGERANT (R410A) WHICH DOES NOT DESTROY OZONE
LAYER.
R410A refrigerant is apt to be affected by impurities such as water, oxidizing membrane, and oils because the working pressure of
R410A 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 R410A 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 (R410A) units as shown on page 4. For connecting pipes, use new and clean piping materials with high pressure
fittings made for R410A 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 a circuit breaker or a switch with a contact separation of at least
3 mm.
01_OutdoorInstallation_EN.fm Page 1 Wednesday, March 29, 2006 10:27 AM
