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DC Inverter Cassette Type Air Conditioner Installation and Operation Manual
For the following items, take special care during construction and check after installation is finished.
Items to check
Is the indoor unit fixed firmly?
Is the gas leakage test finished?
Is the unit fully insulated?
Does drainage flow smoothly?
Does the power supply voltage correspond to that shown
on the nameplate?
Are wiring and piping correct?
Is the unit safely grounded?
Is wiring size according to specifications?
Is something blocking the air outlet or intake of either the
indoor or outdoor unit?
Have records of refrigerant piping length and additional
refrigerant change been made?
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.
If not properly done, what is likely to happen
The unit may drop, vibrate or make noise.
It may result in insufficient cooling.
Condensate water may drip.
Condensate water may drip.
The unit may malfunction or the components burn out.
The unit may malfunction or the components burn out.
Risk of electric leakage.
The unit may malfunction or the components burn out.
It may result in insufficient cooling.
Volume of refrigerant change in the system is not clear.
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