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DC Inverter Cassette Type Air Conditioner Installation and Operation Manual
● Warning: Before obtaining access to terminals, all supply circuits must be disconnected.
8.3 Electric Wiring
1. All field supplied parts and materials must conform to local laws and regulations.
2. For electric wiring, refer to WIRING DIAGRAM attached to the unit body.
3. All wiring must be performed by a skilled technician.
4. A circuit breaker capable of shutting down power supply to the entire system and which have at least 3
mm contact separation in each pole must be install in the fixed wiring.
5. Earth properly.
6. Wiring must conform to national laws and regulations.
7. The fixed wiring must be installed with a protector with no more that 30 mA leakage current.
8. If the supply cord is damaged, it must be replaced by the manufacturer or its service agents or a similar
qualified person in order to avoid a hazard.
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 Wired Controller must be separated from the power line and the connecting line
(signal wire) 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 wire.
8.3.1 Wiring of the indoor unit
① Remove the control box lid, pull the wires inside through rubber bush and wiring according to the
WIRING DIAGRAM, then tighten it with clamp.
② Remove the control box lid; pull wires inside through rubber bush
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.
⑤ After wiring, tighten it with clamp and fix the control box lid.
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