DC Inverter Monoblock Duct Type Air Conditioner Installation and Operation Manual
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⑥
Do not let any cable contact the refrigerant pipe, the compressor and moving parts such as
fan.
⑦
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.
2.3.1 Power Cable Connection
(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 on
the metal electric box.
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 through rubber ring.
4) Connect the power cable to the terminal marked “L1,L2,L3 & N”. Connect earth wire to
the earthed terminal screw on the electric box.
5) Use cable fastener to bundle and fix the cable.
Cautions:
Take great care when carrying out the following connections, so as to avoid malfunction
of the air-conditioning unit because of electromagnetic interference.
①
The signal line of the wire controller must be separated from the power line and the connecting
line between the indoor unit and the outdoor unit.
②
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 line of the wire controller.
2.3.2 Connection of Signal Line of Wire Controller
(1) Open the cover of the electric box of the indoor unit.
(2) Pull the signal cable of the wire controller through the rubber ring.
(3) Plug the signal line of the wire controller onto the 4-bit pin socket at the circuit board of the
indoor unit.
(4) Use cable fastener to bundle and fix the signal cable of the wire controller.
