Multi Variable Air Conditioners Fresh Air Series Indoor Unit
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5.5 Illuminate for Connection of 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
5.5.1).
Note:
① When the wired controller is controlling multiple indoor units at the same time, the indoor units
must be of the same model. Fresh air indoor unit cannot share the same wired controller with
other types of VRF indoor unit.
② When two wired controllers are controlling the indoor units, you need to set an address for each
wired controller. Address No.1 refers to master wired controller while address No.2 refers to
sub-master wired controller. They should not share the same address. For specific setting
methods, please refer to installation manual of wired controller.
③ If connecting the fresh air indoor unit with wired controller for operation, fresh air indoor unit
code “FAP” will be displayed. For specific operation methods, please refer to instruction manual
of wired controller.
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