SMMS High-Wall Type
Installation Manual
– 8 –
EN
Relocation
• Only a qualified installer(*1) or qualified service person(*1) is allowed to relocate the air conditioner. It
is dangerous for the air conditioner to be relocated by an unqualified individual since a fire, electric
shocks, injury, water leakage, noise and / or vibration may result.
• 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 the compressor still
operating will cause air or other gas to be sucked in, raising the pressure inside the refrigeration cycle
to an abnormally high level, and possibly resulting in rupture, injury or other trouble.
CAUTION
New Refrigerant Air Conditioner Installation
•
THIS AIR CONDITIONER ADOPTS THE NEW HFC REFRIGERANT (R410A) WHICH DOES NOT
DESTROY OZONE LAYER.
• The characteristics of R410A refrigerant are; easy to absorb water, oxidizing membrane or oil, and its
pressure is approx. 1.6 times higher than that of refrigerant R22. Accompanied with the new refrigerant,
refrigerating oil has also been changed. Therefore, do not let water, dust, former refrigerant, or
refrigerating oil enter the refrigerating cycle during installation work.
• To prevent charging an incorrect refrigerant and refrigerating oil, the sizes of connecting sections of
charging port of the main unit and installation tools are changed from those for the conventional
refrigerant.
• Accordingly the exclusive tools are required for the new refrigerant (R410A).
• For connecting pipes, use new and clean piping designed for R410A, and please care so that water or
dust does not enter.
To Disconnect the Appliance from 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.
The installation fuse (all types can be used) must be used for the power supply line of this
conditioner.
(*1) Refer to the “Definition of Qualified Installer or Qualified Service Person.”
8-EN
Summary of Contents for MMK-AP0074MH-E
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