DC Inverter Cassette Type Air Conditioner Installation and Operation Manual
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For the following items, take special care during construction and check after installation is nished.
Items to check If not properly done, what is likely to happen
Is the indoor unit xed rmly? The unit may drop, vibrate or make noise.
Is the gas leakage test nished? It may result in insufcient cooling.
Is the unit fully insulated? Condensate water may drip.
Does drainage ow smoothly? Condensate water may drip.
Does the power supply voltage correspond to that shown
on the nameplate?
The unit may malfunction or the components burn out.
Are wiring and piping correct? The unit may malfunction or the components burn out.
Is the unit safely grounded? Risk of electric leakage.
Is wiring size according to specications? The unit may malfunction or the components burn out.
Is something blocking the air outlet or intake of either the
indoor or outdoor unit?
It may result in insufcient cooling.
Have records of refrigerant piping length and additional
refrigerant change been made?
Volume of refrigerant change in the system is not clear.
Note to the installer:
● Be sure to instruct the customer how to operate the system and show him/her the attached operation
manual.
● Be sure the electric supply that user applies is beyond the bounds of tolerances (+/-10%, +/-1Hz).
● The ambient temperature should be at 5-40°C, and the humidity is 30%-95%.
● Transport/storage temperature should be at -25-55°C and for short period not exceeding 24h at up to
+70°C.
● The installation altitude is beyond the height of 1000m.
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