Safety Precautions - Toshiba RAS-10BKV-E1 Service Manual

For general public use
Power supply cord and connecting cable of appliance use shall be at least polychloroprene sheathed
flexible cord (design H07RN-F) or cord designation 60245 IEC66. (Shall be installed in accordance with
national wiring regulations.)
• Read this "SAFETY PRECAUTIONS" carefully before servicing.
• The precautions described below include the important items regarding safety. Observe them without fail.
• After the servicing work, perform a trial operation to check for any problem.
• Turn off the main power supply switch (or breaker) before the unit maintenance.
New Refrigerant Air Conditioner Installation
• THIS AIR CONDITIONER USES THE NEW HFC REFRIGERANT (R410A), WHICH DOES NOT
DESTROY THE OZONE LAYER.
R410A refrigerant is apt to be affected by impurities 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 the refrigeration 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. 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.
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 in all poles.
• ASK AN AUTHORIZED DEALER OR QUALIFIED INSTALLATION PROFESSIONAL TO IN-
STALL/MAINTAIN THE AIR CONDITIONER.
INAPPROPRIATE SERVICING MAY RESULT IN WATER LEAKAGE, ELECTRIC SHOCK OR FIRE.
• TURN OFF MAIN POWER SUPPLY BEFORE ATTEMPTING ANY ELECTRICAL WORK. MAKE SURE
ALL POWER SWITCHES ARE OFF. FAILURE TO DO SO MAY CAUSE ELECTRIC SHOCK.
DANGER: HIGH VOLTAGE
The high voltage circuit is incorporated.
Be careful to do the check service, as the electric shock may be caused in case of touching parts
on the P .C. board by hand.
• CORRECTLY CONNECT THE CONNECTING CABLE. IF THE CONNECTING CABLE IS INCOR-
RECTLY CONNECTED, ELECTRIC PARTS MAY BE DAMAGED.
• CHECK THAT THE EARTH WIRE IS NOT BROKEN OR DISCONNECTED BEFORE SERVICE AND
INSTALLATION. FAILURE TO DO SO MAY CAUSE ELECTRIC SHOCK.

1. SAFETY PRECAUTIONS

CAUTION
CAUTION
DANGER
- 3 -
FILE NO. SVM-17030