Installation Procedure; Safety Cautions - Toshiba AS-24UKHP-ES3 Service Manual

8-1. Safety Cautions

Power supply cord of Outdoor unit shall be more than 4 mm
sheathed flexible cord) or 3.5 mm
CAUTION
New Refrigerant Air conditioner Installation
• THIS AIR CONDITIONER USES THE NEW HFC REFRGERANT (R410A), WHICH DOES NOT DESTROY
THE OZONE LAYER.
R410A refrigerant is apt to be affected by impurity such as water, oxidizing membranes, and oils because the
pressure of R410A refrigerant is approx. 1.6 times of refrigerant R22. As well as the adoption of this new
refrigerant, refrigerating machine oil has also been changed. Therefore, during installation work, be sure that
water, dust, former refrigerant, or refrigerating machine oil does not enter into the refrigerating cycle of a
new-refrigerant air conditioner.
To avoid mixing refrigerant and refrigerating machine oil, the sizes of charging port connecting sections on
the main unit are different from those for the conventional refrigerant, and different size tools are also
required. Accordingly, special tools are required for the new refrigerant (R410A) as shown below. For
connecting pipes, use new and clean piping materials with high-pressure withstand capabilities, designed for
R410A only, and ensure that water or dust does not enter. Moreover, do not use any existing piping as its
pressure withstand may be insufficient, and may contain impurities.
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.
If this is not possible, a power supply plug with earth must be used. This plug must be easily accessible after
installation. The plug must be disconnected from the power supply socket in order to disconnect the
appliance completely from the mains.

8. INSTALLATION PROCEDURE

For general public use
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(AWG-12).
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FILE NO. SVM-04007
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(H07RN-F or 245 IEC66 : polychloroprene