Toshiba RAS-18J2KVRG-E User manual

AIR CONDITIONER (SPLIT TYPE)
INSTALLATION MANUAL
Indoor unit
RAS-18J2KVRG-E
RAS-B22J2KVRG-E
RAS-B24J2KVRG-E
Outdoor unit
RAS-18J2AVRG-E
RAS-22J2AVRG-E
RAS-24J2AVRG-E
R32 or R410A
1120650169

PRECAUTIONS FOR SAFETY...........................................................................................................................................1
ACCESSORY PARTS .........................................................................................................................................................5
INSTALLATION DIAGRAM OF INDOOR AND OUTDOOR UNITS ...................................................................................6
Optional Installation Parts ...............................................................................................................................................6
INDOOR UNIT.....................................................................................................................................................................7
Installation Place.............................................................................................................................................................7
Cutting a Hole and Mounting Installation Plate ...............................................................................................................7
Piping and Drain Hose Installation..................................................................................................................................7
Indoor Unit Fixing............................................................................................................................................................8
Drainage .........................................................................................................................................................................9
OUTDOOR UNIT.................................................................................................................................................................9
Installation Place.............................................................................................................................................................9
Precautions about Installation in Regions with Snowfall and Cold Temperatures ..........................................................9
Draining the Water ........................................................................................................................................................10
Refrigerant Piping Connection ......................................................................................................................................10
Evacuating ................................................................................................................................................................... 11
ELECTRICAL WORKS .....................................................................................................................................................12
Wiring Connection.........................................................................................................................................................12
In Case of Indoor Unit Connect With 1:1 Outdoor Unit .................................................................................................13
In Case of Indoor Unit Connect With Inverter Multi System (IMS)................................................................................15
OTHERS............................................................................................................................................................................16
Gas Leak Test ...............................................................................................................................................................16
Remote Control A-B Selection ......................................................................................................................................16
Test Operation ..............................................................................................................................................................16
Auto Restart Setting .....................................................................................................................................................16
APPENDIX ........................................................................................................................................................................17
CONTENTS
EN

1
PRECAUTIONS FOR SAFETY
PRECAUTIONS FOR SAFETY
• Before installation, please read these precautions for safety carefully.
• Be sure to follow the precautions provided here to avoid safety risks. The
symbols and their meanings are shown below.
WARNING : It indicates that incorrect use of this unit may cause severe injury or
death.
CAUTION : It indicates that incorrect use of this unit may cause personal injury
(*1), or property damage (*2).
*1: Personal injury means a slight accident, burn, or electrical shock
which does not require admission or repeated hospital treatment.
*2: Property damage means greater damage which affects assets or
resources.
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.)
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.
CAUTION To disconnect the appliance from the main power supply
Read the precautions in
this manual carefully before
operating the unit.
This appliance is filled with R32.

2
WARNING
• Never modify this unit by removing any of the safety guards or bypassing any of
the safety interlock switches.
• Do not install in a place which cannot bear the weight of the unit.
Personal injury and property damage can result if the unit falls.
• Before doing the electrical work, attach an approved plug to the power supply
cord.
Also, make sure the equipment is properly earthed.
• Appliance shall be installed in accordance with national wiring regulations.
If you detect any damage, do not install the unit. Contact your dealer
immediately.
DANGER
• FOR USE BY QUALIFIED PERSONS ONLY.
• 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 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.

3
• Do not use any refrigerant different from the outdoor unit specified for
complement or replacement.
Otherwise, abnormally high pressure may be generated in the refrigeration
cycle, which may result in a failure or explosion of the product or an injury to
your body.
• Do not use means to accelerate the defrosting process or to clean, other than
those recommended by the manufacturer.
• The appliance shall be stored in a room without continuously operating ignition
sources (for example: open flames, an operating gas appliance or an operating
electric heater).
• Be aware that refrigerants may not contain an odour.
• Do not pierce or burn as the appliance is pressurized. Do not expose the
appliance to heat, flame, sparks, or other sources or ignition. Else, it may
explode and cause injury or death.
• A special tool for the R32 or R410A refrigerant is required for installation.
• Thickness of copper pipes used R32 must be more than 0.8 mm. Never use
copper pipes thinner than 0.8 mm.
• After completion of installation or service, confirm there is no leakage of
refrigerant gas. It may generate toxic gas when the refrigerant contacts with fire.
• When the indoor unit is connected with multi-split R32 outdoor unit 3M26, 4M27
and 5M34.
Please see IMS outdoor unit installation manual and consult your dealer about
the minimum floor area.
• Comply with national gas regulations.