Toshiba RAS-18, 22SKV, 22SAV, 22SKVR Installation Manual

Indoor unit RAS-18, 22SKV(R) Series
Outdoor unit RAS-18, 22SAV Series
AIR CONDITIONER
(SPLIT TYPE)
INSTALLATION MANUAL
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CONTENTS
PRECAUTIONS FOR SAFETY ................................... 1
INSTALLATION DIAGRAM OF INDOOR AND
OUTDOOR UNITS ...................................................... 3
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Optional Installation Parts ........................................ 3
INDOOR UNIT ............................................................. 4
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Installation Place ..................................................... 4
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Cutting a Hole and Mounting Installation Plate ........ 4
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Wiring Connection ...................................................5
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Piping and Drain Hose Installation .......................... 5
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Indoor Unit Fixing .................................................... 6
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Drainage .................................................................. 6
OUTDOOR UNIT ......................................................... 6
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Installation Place ..................................................... 6
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Precautions about Installation in Regions with
Snowfall and Cold Temperatures ............................. 6
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Refrigerant Piping Connection ................................. 7
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Evacuating .............................................................. 7
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Wiring Connection ...................................................7
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Electrical Work ......................................................... 7
OTHERS ...................................................................... 8
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Gas Leak Test .......................................................... 8
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Remote Control A-B Selection ................................. 8
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Test Operation .........................................................8
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Auto Restart Setting ................................................ 8
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PRECAUTIONS FOR SAFETY
PRECAUTIONS FOR SAFETY
WARNING
• Never modify this unit by removing any of the safety guards or bypassing any of the safety interlock switches.
• Installation work must be requested from the supplying retail dealership or professional vendors. Self-installation may cause water leakage, electrical shock, or fi re as a result of improper installation.
• Specifi ed 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 of conventional refrigerant (R22). Use the specifi ed pipe parts, and ensure correct installation, otherwise damage and/or injury may be caused. At the same time, water leakage, electrical shock, and fi re may occur.
• Be sure to install the unit in a place which can suffi ciently bear its weight. If the load bearing of the unit is not enough, or installation of the unit is improper, the unit may fall and result in injury.
• Electrical work must be performed by a qualifi ed electrical engineer in accordance with the code governing such installation work, internal wiring regulations, and the manual. A dedicated circuit and the rated voltage must be used. Insuffi cient power supply or improper installation may cause electrical shock or fi re.
• Use a cabtyre cable to connect wires in the indoor/outdoor units. Midway connection, stranded wire, and single-wire connections are not allowed. Improper connection or fi xing may cause a fi re.
• Wiring between the indoor unit and outdoor units must be well shaped so that the cover can be fi rmly placed. Improper cover installation may cause increased heat, fi re, or electrical shock at the terminal area.
• Be sure to use only approved accessories or the specifi ed parts. Failure to do so may cause the unit to fall, water leakage, fi re or electrical shock.
• After the installation work, ensure that there is no leakage of refrigerant gas. If the refrigerant gas leaks out of the pipe into the room and is heated by re or something else from a fanheater, stove or gas range, it causes generation of poisonous gas.
• Make sure the equipment is properly earthed. Do not connect the earth wire to a gas pipe, water pipe, lightning conductor, or telephone earth wire. Improper earth work may be the cause of electrical shock.
• Do not install the unit where fl ammable gas may leak. If there is any gas leakage or accumulation around the unit, it can cause a fi re.
• Do not select a location for installation where there may be excessive water or humidity, such as a bathroom. Deterioration of insulation may cause electrical shock or fi re.
• Installation work must be performed following the instructions in this installation manual. Improper installation may cause water leakage, electrical shock or fi re. Check the following items before operating the unit.
- Be sure that the pipe connection is well placed and there are no leaks.
- Check that the service valve is open. If the service valve is closed, it may cause overpressure and result in compressor damage. At the same time, if
there is a leak in the connection part, it may cause air suction and overpressure, resulting in damage to the unit or injury.
• In a pump-down operation, be sure to stop the compressor unit before removing the refrigerant pipe. If removing the refrigerant pipe while the compressor is operating with the service valve opened, it may cause air suction and overpressure, resulting in damage to the unit or injury.
• Do not modify the power cable, connect the cable midway, or use a multiple outlet extension cable. Doing so may cause contact failure, insulation failure, or excess current, resulting in fi re or electrical shock.
• If you detect any damage, do not install the unit. Contact your supplying dealer immediately.
New refrigerant air conditioner installation
CAUTION
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 highpressure 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 insuffi cient and may contain impurities.
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 (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.
For general public use
Power supply cord of parts of appliance for outdoor use shall be at least polychloroprene sheathed fl exible cord (design H07RN-F) or cord designation 60245 IEC66 (1.5 mm2 or more). (Shall be installed in accordance with national wiring regulations.)
• 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.
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REQUIREMENT OF REPORT TO THE LOCAL POWER SUPPLIER
Please make absolutely sure that the installation of this appliance is reported to the local power supplier before installation. If you experience any problems or if the installation is not accepted by the supplier, the service agency will take adequate countermeasures.
CAUTION
• Exposure of unit to water or other moisture before installation could result in electric shock. Do not store it in a wet basement or expose to rain or water.
• After unpacking the unit, examine it carefully for possible damage.
• Do not install in a place that can increase the vibration of the unit. Do not install in a place that can amplify the noise level of the unit or where noise and discharged air might disturb neighbors.
• Please read this installation manual carefully before installing the unit. It contains further important instructions for proper installation.
• This appliance must be connected to the main power supply by means of a circuit breaker depending on the place where the unit is installed. Failure to do so may cause electrical shock.
• Follow the instructions in this installation manual to arrange the drain pipe for proper drainage from the unit. Ensure that drained water is discharged. Improper drainage can result in water leakage, causing water damage to furniture.
• Tighten the fl are nut with a torque wrench using the prescribed method. Do not apply excess torque. Otherwise, the nut may crack after a long period of usage and it may cause the leakage of refrigerant.
• Wear gloves (heavy gloves such as cotton gloves) for installation work. Failure to do so may cause personal injury when handling parts with sharp edges.
• Do not touch the air intake section or the aluminum fi ns of the outdoor unit. It may cause injury.
• Do not install the outdoor unit in a place which can be a nest for small animals. Small animals could enter and contact internal electrical parts, causing a failure or fi re.
• Request the user to keep the place around the unit tidy and clean.
• Make sure to conduct a trial operation after the installation work, and explain how to use and maintain the unit to the customer in accordance with the manual. Ask the customer to keep the operation manual along with the installation manual.
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