6
Outdoor Unit
Installation Manual
WARNING
• If you detect any damage, do not install the unit. Contact your supplying dealer immediately.
• Never modify this unit by removing any of the safety guards or bypassing any of the safety interlock
switches.
• Do not wash air conditioners with pressure washers.
Electric leaks may cause electric shocks or
fi
res.
• Be sure to comply with local regulations/codes when running the wire from the outdoor unit to the
indoor unit. (Size of wire and wiring method etc.)
• When installing the air conditioner in a small room, provide appropriate measures to ensure that the
concentration of refrigerant leakage occur in the room does not exceed the critical level. It is not
dangerous refrigerant; it has not toxicity or combustibility. However, a concentration above 0.3 kg/m
3
as criterion still causes suffocation. The volume of refrigerant charged to the Multi System air condi-
tioner is more than the volume charged to a conventional individual system.
• Before operating the air conditioner after having completed the work, check that the electrical parts
control box cover of the indoor unit and valve cover of the outdoor unit are closed, and set the circuit
breaker to the ON
position. You may receive an electric shock etc. if the power is turned on without
fi
rst conducting these
checks.
• Make sure drain hose insulation if cooling operation is used at sub-zero ambient temperature.
CAUTION
• Please read this installation manual carefully before installing the unit. It contains further
important instructions for proper installation.
• 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
neighbours.
• 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 aluminium
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 test run 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.
• Do not climb onto or place objects on top of the outdoor unit. You may fall or the objects
may fall off of the outdoor unit and result in injury.
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