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About Power Off
• All the operations will stop if there is a power off.
• The buzzer of the display will make a sound and the operation indicator will flash when the power
is on after a failure.
• Press ON/OFF button to restart the unit.
About Protection Device
When starting the unit compulsorily while the unit does not prepare for the starting, the on/off indicator
lights, the protection device is activated and the unit stops.
Heating Capacity Drop
When the outdoor temp. is low the heating capacity drop, please use the air- conditioner with other
heating equipments or purchase the digital scroll central air-conditioner auxiliary heating device.
When the Protection Device is Activated
Cooling Operation
• The air Intake and the air outlet of the outdoor unit are blocked.
• Strong wind outside is blowing into the air outlet of the outdoor unit.
Heating Operation
• The air filter is too dirty.
• The air intake and the air outlet of the indoor unit are blocked.
Fan Runs after the Indoor Unit Stopped
To protect the machine, one of the indoor units, which stops the running while the other indoor units
are still running, will run its fan at low speed for 3 minutes every 1 hour on cooling operation or every
4 hours on heating operation.
• Confirm the air filter is installed. The heat exchanger would accumulate dust or leak water
without the air filter.
• One indoor unit can run alone, or run with other indoor units, but can not run under heating
mode while others run under cooling mode.
CAUTION
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