SiK401004_A
83 INSTALLATION
4.1.4 Connection of Signal Line of Wired Controller
Caution:
Take great care when carrying out the following connections, so as to avoid
malfunction of the air-conditioning unit because of electromagnetic interference.
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.
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 wired
controller.
Open the cover of the electrical box of the indoor unit.
Pull the signal cable of the wired controller through the rubber bush.
Plug the signal line of the wired controller onto the 4-bit pin socket at the circuit board
of the indoor unit.
Use cable fastener to bundle and fix the signal cable of the wired controller.
4.1.5 Connection of Wiring
Disassemble right side panel and blow out hole for crossing wired on outdoor unit and
cover it with cushion rubber.
Remove cable cleat, connect the connecting wire of power supply to the terminal and
fix it.
Fix connecting wire of power supply and signal control wire with attached clamp
without applying external pressure on the terminal parts, and then connect the
corresponding connector.
Make sure that the wiring has been fixed.
Install the front side plate.
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