22
2-8
System control refers to the link wiring connection for control of simultaneous-operation multi systems,
group control, and main-sub remote controller control.
2-8-1. Basic wiring diagram
Be careful to avoid miswiring when connecting the wires.
(Miswiring will damage the units.)
(for 3-phase Outdoor unit)
Fig. 2-6
(Wiring procedure)
(1) Connect the remote controller to the indoor unit remote controller wiring terminal plate (R1, R2).
(Remote controller wiring)
(2) Connect the indoor units (U1, U2) and the outdoor units (U1, U2). Connect the other outdoor units and indoor
units (with different refrigerant systems) in the same way. (Inter-unit control wiring)
Connect the remote controller communication wiring to the indoor units (R1, R2) for each refrigerant system.
(Remote controller wiring)
(3) Connect the remote controller communication wiring (2 wires) from the remote controller wiring terminal plate
(R1, R2) on the indoor unit (unit where the remote controller is connected) to the remote controller terminal plates
(R1, R2) on the other indoor units. (Remote controller communication wiring)
(4) Turn ON both the indoor and outdoor unit power and perform automatic address setting from the remote
controller. (For the automatic address setting procedure, see 2-8-3.)
Be sure to use the indoor unit temperature sensor (body sensor) when using this control. (Status at shipment.)*
NOTE
Type E3 (Example of SINGLE type) Type U2 (Example of TWIN type)
1
2
U1
U2
N
U1
U2
R1
R2
L3L2L1
L
N
System address rotary switch
(Set to “0” at the time of shipment.)
Inter-unit control wiring
Outdoor unit
Leakage breaker
Ground Ground Ground
Ground
WHT BLK
Indoor
unit
U1
U2
R1
R2
L
N
Indoor
unit
U1
U2
R1
R2
L
N
Indoor
unit
(Optional)
Wired remote
controller
Leakage breaker
Leakage breaker Leakage breaker
Inter-unit control wiring
U1
U2
N
L3L2L1
System address rotary switch
(Set to “0” at the time of shipment.)
Outdoor unit
Leakage breaker
Ground
1
2
WHT BLK
(Optional)
Wired remote
controller
Remote controller wiring
Remote controller wiring
SM830276-00_欧州向け R32シングル TD＆SM.indb 8 19/02/28 13:22:58
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