Multi Variable Air Conditioners Cassette Type Indoor Unit
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5.5 Instructions on Connecting Wired Controller and Indoor Units Network
(1) Communication wire of indoor unit and outdoor unit (or indoor unit) is connected to D1, D2.
(2) Wired controller is connected to H1, H2.
(3) One indoor unit can connect two wired controllers that must be set as master one and slave
one.
(4) One wired controller can control 16 indoor units in maximum at the same time (as shown in
Fig.5.5).
Fig.5.5
NOTES!
① The type of indoor units must be the same if they are controlled by the same wired controller.
② When the indoor unit is controlled by two wired controllers, the addresses of the two wired
controllers should be different through address setting. Address 1 is for main controller;
Address 2 is for slave controller. Detailed setting please refer to the instruction manual of
wired controller.
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