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Super Digital Inverter
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Do not install the air conditioner in a location that may be subjected to a risk of exposure to a combustible gas.
If a combustible gas leaks and becomes concentrated around the unit, a fire may occur.
•
Install the refrigerant pipe securely during the installation work before operating the air conditioner.
If the compressor is operated with the valve open and without the refrigerant pipe, the compressor sucks air and the
refrigeration cycle is overpressurized, which may cause a burst or injury.
•
When carrying out the pump-down work, shut down the compressor before disconnecting the refrigerant pipe.
Disconnecting the refrigerant pipe with the service valve left open and with the compressor still operating will cause air, etc.
to be sucked in, raising the pressure inside the refrigeration cycle to an abnormally high level, and possibly resulting in
rupturing, injury, etc.
CAUTION
•
Do not climb onto or place objects on top of the outdoor unit.
You may fall or the objects may fall off of the outdoor unit and result in injury.
•
Wear heavy gloves during the installation work to avoid injury.
To Disconnect the Appliance from the Main Power Supply
•
This appliance must be connected to the main power supply by means of a switch with a contact separation of at least 3 mm.
•
A 25 A installation fuse (all fuse types can be used) must be used for the power supply line of this conditioner.
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INSTALLATION OF NEW REFRIGERANT AIR
CONDITIONER
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 as that of refrigerant R22. Accompanied with the adoption of the new refrigerant, the
refrigerant oil has also been changed. Therefore, during installation work, be sure that water, dust, former refrigerant, or
refrigerant oil does not enter the new type refrigerant R410A air conditioner cycle.
To prevent mixing of refrigerant or refrigerant oil, the sizes of connecting sections of charging port on main unit and installation
tools are different from those of the conventional refrigerant units. Accordingly, special tools are required for the new refrigerant
(R410A) units. 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.
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