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• When a water supply pipe is connected to the system, relevant local ordinances and
standards must be followed. The improper pipe connection may cause water leakage, etc.
Ask a qualified installer (*1) or qualified service person (*1) to carry out the water piping work.
Operation
• Inside the unit are high-voltage areas and rotating parts. Due to the danger of electric shocks
or of your fingers or physical objects becoming trapped in the rotating parts, do not remove
the service panel of the unit. When work involving the removal of these parts is required,
contact a qualified installer or a qualified service person.
• Fix all of the service panels firmly in place. There are component parts with pressurized gas
and/or high voltage inside the unit. If the panels are opened by accident, an injury and
electric shocks may occur.
• When the unit is operated with a combustion appliance in the same place, be careful of
ventilation to let fresh air enter the room. Poor ventilation causes oxygen shortage.
• When the unit is used in a closed room, be careful of sufficient ventilation of the room. Poor
ventilation causes oxygen shortage.
• Do not expose your body to exhaust air directly for a long time and do not cool or heat
yourself excessively. Doing so may result in deteriorated physical condition and ill health.
• Never insert your finger or a stick into the air discharge. Doing so may result injury as the fan
is rotating at high speed inside the unit.
• Consult the shop where you purchased the unit if water temperature control (cooling and
heating) is not performed properly as a refrigerant leakage may be the cause. Confirm the
repair details with a qualified service person (*1) when the repair includes additional charging
of the refrigerant.
• Be sure to stop running the unit and turn off the circuit breaker before cleaning. Otherwise, a
fire, electric shocks, injury may result.
• Do not insert a finger, stick and so on into the fans and pump.
Repairs
• When you have noticed that some kind of error (such as when an error display has appeared,
there is a smell of burning, abnormal sounds are heard, the unit fails to cool or heat or water
is leaking) has occurred in the unit, do not touch the unit yourself but lock the circuit breaker
in the OFF position, place a "out of service" sign near the circuit breaker, and contact a
qualified service person. Continuing to use the unit in the error status may cause mechanical
problems to escalate or result in electric shocks, etc.
• If you have discovered that the fan grille is damaged, do not approach the unit but set the
circuit breaker to the OFF position, lock the circuit breaker in the OFF position, place a "out
of service" sign near the circuit breaker, and contact a qualified service person to have the
repairs done. Do not set the circuit breaker to the ON position until the repairs are completed.
• If you have discovered that there is a danger of the unit’s toppling over, do not approach the
unit but set the circuit breaker to the OFF position, lock the circuit breaker in the OFF position,
place a "out of service" sign near the circuit breaker, and contact a qualified installer or a
qualified service person to have the improvements or refitting done. Do not set the circuit
breaker to the ON position until the improvements or refitting is completed.
• Do not customize the unit. Doing so may result in fire, electric shock, etc.
• Ensure sufficient ventilation when making repairs indoors. Refrigerant leakage with poor
ventilation may cause an accident such as oxygen shortage.
