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1. BEFORE INSTALLATION
1-1. THE FOLLOWING SHOULD ALWAYS BE OBSERVED FOR SAFETY
• Be sure to read “THE FOLLOWING SHOULD ALWAYS BE OBSERVED FOR SAFETY” before installing the air conditioner.
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• After reading this manual, be sure to keep it together with the OPERATING INSTRUCTIONS for future reference.
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1-3. SPECIFICATIONS
CAUTION
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Do not install the unit by yourself (user).
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Perform the installation securely referring to the installation manual.
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unit falling, or leakage of water.
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Install the unit securely in a place which can bear the weight of the
unit.
If the installation location cannot bear the weight of the unit, the unit
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Perform electrical work according to the installation manual and be
sure to use an exclusive circuit. Do not connect other electrical appli-
ances to the circuit.
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Do not damage the wires by applying excessive pressure with parts
or screws.
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Be sure to cut off the main power in case of setting up the indoor P.C.
board or wiring works.
Failure to do so could cause electric shock.
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sections so the stress of the wires is not applied to the sections.
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If gas leaks and accumulates in the area around the unit, it could cause
an explosion.
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Do not use intermediate connection of the power cord or the exten-
sion cord and do not connect many devices to one AC outlet.
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tive insulation, exceeding the permissible current, etc.
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tion work.
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When plugging the power supply plug into the outlet, make sure
that there is no dust, clogging, or loose parts in both the outlet and
the plug. Make sure that the power supply plug is pushed complete-
ly into the outlet.
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Attach the electrical cover to the indoor unit and the service panel
to the outdoor unit securely.
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electric shock due to dust, water, etc.
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When installing or relocating the unit, make sure that no sub-
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refrigerant circuit.
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pressure rise or an explosion.
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Do not discharge the refrigerant into the atmosphere. If refrigerant
leaks during installation, ventilate the room.
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ated.
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Check that the refrigerant gas does not leak after installation has
been completed.
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of a fan heater, space heater, stove, etc., harmful substances will be
generated.
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Use appropriate tools and piping materials for installation.
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ate tools or materials and incomplete installation could cause the pipes
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When pumping down the refrigerant, stop the compressor before
disconnecting the refrigerant pipes.
If the refrigerant pipes are disconnected while the compressor is run-
ning and the stop valve is open, air could be drawn in and the pressure
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When installing the unit, securely connect the refrigerant pipes
before starting the compressor.
If the compressor is started before the refrigerant pipes are connected
and when the stop valve is open, air could be drawn in and the pres-
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manual.
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refrigerant leakage.
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The unit shall be installed in accordance with national wiring regu-
lations.
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Earth the unit correctly.
Do not connect the earth to a gas pipe, water pipe, lightning rod or tel-
ephone earth. Defective earthing could cause electric shock.
N
Install an earth leakage breaker depending on the installation place.
If an earth leakage breaker is not installed, it could cause electric shock.
N
Perform the drainage/piping work securely according to the installa-
tion manual.
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unit, soaking and damaging household goods.
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Do not install the outdoor unit where small animals may live.
If small animals enter and touch the electric parts inside the unit, it
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to keep the area around the unit clean.
Model
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Pipe length and height difference
Rated
Voltage
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Breaker
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connecting wire
Max. pipe length
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Max.
height difference
Max. no. of bends
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Refrigerant adjust-
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25 A
3-core 2.5 mm
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4-core
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15 m
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15 m
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WARNING
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Phillips screwdriver
Level
Scale
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Torque wrench
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4 mm hexagonal wrench
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Pipe cutter with reamer
1-2. REQUIRED TOOLS FOR INSTALLATION
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to interrupt the source power phase. (When the power switch is shut off, it
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installation manual of the indoor unit.
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If the outdoor unit is installed higher than the indoor unit, max. height
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