Installation Of New Refrigerant Air Conditioner - Toshiba RAV-SM1603AT-E Installation Manual

Digital Inverter
• When the air conditioner cannot cool or heat a room well, contact the dealer from whom you
purchased the air conditioner as refrigerant leakage is considered as the cause.
In the case of repair that requires refill of refrigerant, ask service personnel about details of the
repair.
The refrigerant used in the air conditioner is harmless.
Generally, the refrigerant does not leak. However, if the refrigerant leaks in a room and a heater or stove
burner in the room catches fire, it may generate toxic gas.
When you ask service personnel for repairing refrigerant leakage, confirm that the leakage portion has
been completely repaired.
• Conform to the regulations of the local electric company when wiring the power supply.
Inappropriate grounding may cause electric shock.
• Do not install the air conditioner in a location subject to a risk of exposure to a combustible gas.
If a combustible gas leaks, and stays 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.
• For the refrigerant recovery work (collection of refrigerant from the pipe to the compressor), stop
the compressor before disconnecting the refrigerant pipe.
If the refrigerant pipe is disconnected while the compressor is working with the valve open, the compressor
sucks air and the refrigeration cycle is overpressurized, which may cause a burst or injury.
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, during installation work, be sure that water, dust, former
refrigerant, or refrigerating oil does not enter the refrigerating cycle.
• 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 40 A (All type fuse can be used) must be used for the power supply line of this
conditioner.
3
INSTALLATION OF NEW REFRIGERANT
AIR CONDITIONER
• The R410A refrigerant is more susceptible to impurities such as water, oxide membrane, oils, and fats.
With the adoption of the new refrigerant, refrigerating oil has also been changed.
Be careful so that water, dust, conventional refrigerant, and/or conventional refrigerating oil do not
enter the refrigerating cycle of the new refrigerant air conditioner.
• To prevent different refrigerant or refrigerating oil being mixed, the sizes of the charging port of the unit
and the installation tool connecting sections are different from the conventional refrigerant. Accordingly
the following exclusive tools are required for the new refrigerant R410A.
Outdoor Unit Installation Manual
WARNING
CAUTION
– 4 –
EN
4-EN