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DC Inverter Cassette Type Air Conditioner Installation and Operation Manual
● All line connections must conform to the schematic diagram of lines. Wrong connection may cause
abnormal operation or damage of the air-conditioning unit.
● Do not let any cable contact the refrigerant pipe, the compressor and moving parts such as fan.
● Do not change the internal line connections inside the air-conditioning unit. The manufacturer shall not
be liable for any loss or abnormal operation arising from wrong line connections.
8.5.14 Connection of the Power Cable
1. Air-conditioning unit with single-phase power supply
① Remove the front-side panel of the outdoor unit.
② Pass the cable though rubber ring.
③ Connect the power supply cable to the "L, N" terminals and the
grounding screw.
④ Use cable fastener to bundle and fix the cable.
2. Air-conditioning unit with 3-phase power supply
① Remove the front-side panel of the outdoor unit.
② Attach rubber ring to the cable-cross hole of the outdoor unit.
③ Pass the cable though rubber ring.
④ Connect the power cable to the terminal and earthing screws marked
"L1, L2, L3 & N".
⑤ Use cable fastener to bundle and fix the cable.
8.6 Products Electric Installation
The unit should be reliably earthed, if it is improperly earthed that may cause electric shock or fire.
Wiring layout:
● Installation should be conducted by National Wiring Regulation.
● he rated voltage and exclusive power supply must be adopted for the air conditioners.
● The power cable should be reliable and fixed, in order to avoid the wiring terminal be suffered from force.
And do not drag the power cable forcibly.
● The wire diameter of power cable should be large enough, if power cable and connection wire
● be damaged, it should be replaced by the exclusive cable.
● All electric installation must be done by professional personnel according to local law, regulation and this
manual.
● It should be reliably earthed, and it should be connected to the special earth device, the installation work
should be operated by the professional.
● The creepage protecting switch and air switch must be installed.
● Air switch should have the thermal dropout and magnetic dropout function, in order to avoid the short
circuit and overload.
● The on spot connection should refer to the circuit diagram, which is stuck on the unit body.
Caution!
58
Caution:
Take great care when carrying out
the following connections, so as to
avoid malfunction of the
air-conditioning unit because of
electromagnetic interference:
In case the unit is installed in a
place vulnerable by electromagnetic
interference, it is better to use
shielded cable or double-twisted
cable as the signal wire.
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