MULTI VRF-Ⅱ INDOOR UNIT SERVICE MANUAL EUROPEAN/LATIN AMETICA (R410A)
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2.2.4 Connection of communication cord
There are 4 ways to connect wired controller with indoor units’ network:
Fig.2.7 One wired controller controls Fig.2.8Two wired controllers
one indoor unit control one indoor unit
Fig.2.9 One wired controller controls multiple indoor units simultaneously.