aquatermic XK79 Manuel D'utilisation page 12

Wired Controller XK79
Fig. 3.7 Two wired controllers control multiple indoor units simultaneously
Wiring instructions:
(1) When one wired controller controls multiple indoor units simultaneously, the
wired controller can connect to any one indoor unit, but the connected indoor
unit must be the same series indoor unit. The total quantity of indoor unit
controlled by wired controller can't exceed 16 sets, and the connected indoor
unit must be within the same indoor unit's network. Wire controller must set
quantity of group control indoor units. Please refer to 3.2.3 Parameters
Setting.
(2) When two wired controllers control one indoor unit, the addresses of those two
wired controllers should be different. Please refer to 3.2.3 parameter setting.
(3) When two wired controllers control multiple indoor units, wired controller can
connected to any one indoor unit, while the connected indoor unit should be
the same series indoor unit. The addresses of those two wired controllers
should be different. Please refer to 3.2.3 parameter setting. The total quantity
of indoor unit controlled by wired controller can't be more than 16 sets and all
connected indoor units must be within the same indoor unit network. Wire
controller must set quantity of group control indoor units. Please refer to 3.2.3
Parameters Setting.
(4) When one (or two) wired controller(s) control(s) multiple indoor units at the
same time, the controlled indoor unit's setting should be the same.
(5) Wiring of wired controller and indoor unit network must be according to one of
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