10-8. System Control
System control refers to the link wiring connection for control of
simultaneous-operation multi systems, group control, and main-
sub remote controller control.
10-8-1. Basic wiring diagram 1
Single type and simultaneous-operation multi system
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Simultaneous-operation multi system
Up to 4 (Double-Twin) indoor units can be connected to 1
outdoor unit for operation.
(However, coordinate the outdoor unit capacity and the total
capacity of the indoor units.)
(It is not possible to connect individual remote controllers for
independent operation.)
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Be careful to avoid miswiring when connecting the wires.
(Miswiring will damage the units.)
(for 3-phase outdoor unit: X, T, U, D Types)
(for 3-phase outdoor unit: XM Type)
Fig. 10-5-1
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Fig. 10-5-2