Samsung AVXCSH023/032/040CE Service Manual page 15

Product Specifications
3) Simple contact control
Contact interface makes it possible to connect mechanical contacts to indoor units directly, allowing individual and group control
as well as malfunction monitoring of the indoor units.
Direct ON/OFF indoor unit control
Emergent control
Schedule control
4) Wrong wiring protection
Non-polarity communication ensures Normal Operation of air-conditioning system even in case of wrong communication wiring.
Furthermore, power protection mechanism protects indoor units from blowing out under a crossed connection between power and
communication wires, resulting in enhancing system safety and robustness.
Automatic recovery for incorrect
communication wiring
Outdoor unit
Non-Polarility
F1 F2
Wrong wiring
Wrong wiring
L N F1 F2
Indoor unit 1
5) Wireless test run tool
Zigbee wireless test run tool provides installers with easy and convenient control and monitoring of the outdoor unit and 49 indoor
units without bothersome wiring.
2-6
Window
synchronization
Key holder
synchronization
Protection against wrong power line connection
Outdoor unit
F1 F2
L N F1 F2 L N F1 F2
Indoor unit 1
Indoor unit 1
Outdoor unit
Protection
F1 F2
Wrong wiring
Wrong wiring
Wrong wiring
Wrong wiring
Wrong wiring
L N F1 F2
Indoor unit 1 Indoor unit 1
Operation state
Normal
Faulty
Protection
L N F1 F2 L N F1 F2
Indoor unit 1
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