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Installation Manual
EN-5
EN-6
of conventional refrigerant (R22). Use the specified pipe parts, and
ensure correct installation, otherwise damage and/or injury may be
caused. At the same time, water leakage, electrical shock, and fire
may occur.
• Be sure to install the unit in a place which can sufficiently 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 qualified 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. Insufficient power supply or
improper installation may cause electrical shock or fire.
• 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 fixing may cause a fire.
• Wiring between the indoor unit and outdoor units must be well
shaped so that the cover can be firmly placed. Improper cover
installation may cause increased heat, fire, or electrical shock at
the terminal area.
• Be sure to use only approved accessories or the specified parts.
Failure to do so may cause the unit to fall, water leakage, fire 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 fire or something else from a fan heater,
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 flammable gas may leak. If there is
any gas leakage or accumulation around the unit, it can cause a
fire.
• 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 fire.
• Installation work must be performed following the instructions in
this installation manual. Improper installation may cause water
leakage, electrical shock or fire. 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 burst or
injury.
• In pump down operations, ensure to perform the following
procedures.
- Do not inject air into the refrigeration cycle.
- Be sure to close both service valves and stop the compressor
before removing the refrigerant pipe. If removing the refrigerant
pipe while the compressor is operating with the service valves
opened, it may cause to air absorbed and abnormal high
pressure inside the refrigeration cycle and resulting burst 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 fire or electrical
shock.
• Do not use any refrigerant different from the one 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.
• Be sure to comply with local regulations/codes when running the
wire from the outdoor unit to the indoor unit. (Size of wire and
Summary of Contents for RAS-M07G3DV Series
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