5
Installation Manual
Outdoor Unit
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 fires.
• 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 conditioner is more than the volume charged to a
conventional individual system.
• 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 flare 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 fins 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 fire.
• 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.
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.
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