Installation Manual
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EN
• 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.
DANGER
• FOR INSTALLATION BY QUALIFIED PERSONS ONLY.
• MEANS FOR DISCONNECTION FROM THE SUPPLY HAVING A
CONTACT SEPERATION OF AT LEAST 3 mm IN ALL POLES
MUST BE INCORPORATED IN THE FIXED WIRING.
• 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.
• CONNECT THE CONNECTING CABLE CORRECTLY. IF THE
CONNECTING CABLE IS CONNECTED WRONGLY, ELECTRIC
PARTS MAY BE DAMAGED.
• CHECK THE EARTH WIRE THAT IT IS NOT BROKEN OR
DISCONNECTED BEFORE INSTALLATION.
• DO NOT INSTALL NEAR CONCENTRATIONS OF
COMBUSTIBLE GAS OR GAS VAPORS. FAILURE TO FOLLOW
THIS INSTRUCTION CAN RESULT IN FIRE OR EXPLOSION.
• TO PREVENT OVERHEATING THE INDOOR UNIT AND
CAUSING A FIRE HAZARD, PLACE THE UNIT WELL AWAY
(MORE THAN 2 M) FROM HEAT SOURCES SUCH AS
RADIATORS, HEATERS, FURNACE, STOVES, ETC.
• WHEN MOVING THE AIR CONDITIONER FOR INSTALLING IT IN
ANOTHER PLACE AGAIN, BE VERY CAREFUL NOT TO GET
THE SPECIFIED REFRIGERANT (R410A) WITH ANY OTHER
GASEOUS BODY INTO THE REFRIGERATION CYCLE. IF AIR
OR ANY OTHER GAS IS MIXED IN THE REFRIGERANT, THE
GAS PRESSURE IN THE REFRIGERATION CYCLE BECOMES
ABNORMALLY HIGH AND IT RESULTINGLY CAUSES BURST
OF THE PIPE AND INJURIES ON PERSONS.
• IN THE EVENT THAT THE REFRIGERANT GAS LEAKS OUT OF
THE PIPE DURING THE INSTALLATION WORK, IMMEDIATELY
LET FRESH AIR INTO THE ROOM. IF THE REFRIGERANT GAS
IS HEATED BY FIRE OR SOMETHING ELSE, IT CAUSES
GENERATION OF POISONOUS GAS.
• WHEN INSTALLING OR RE-INSTALLING THE AIR
CONDITIONER, DO NOT INJECT AIR OR OTHER SUBSTANCES
BESIDES THE DESIGNATED REFRIGERANT “R410A” INTO THE
REFRIGERATING CYCLE. IF AIR OR OTHER SUBSTANCES ARE
MIXED, AN ABNORMAL PRESSURE CAN OCCUR IN THE
REFRIGERATING CYCLE, AND THIS CAN CAUSE AN INJURY
DUE TO A PIPE RUPTURE.
WARNING
• Installation work must be requested from the supplying retail
dealership or professional vendors. Self-installation may cause water
leakage, electrical shock, or fire as a result of improper installation.
• Specified tools and pipe parts for model R410A are required, and
installation work must be done in accordance with the manual.
HFC type refrigerant R410A has 1.6 times more pressure than that
EN-3
EN-4
Summary of Contents for RAS-M07G3DV Series
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