Sanyo Big PACi 18 Series - 2-8. System Control

2
2-5
2-8. System Control
System control refers to the link wiring connection for control of simultaneous-operation multi systems,
group control, and mainsub remote controller control.
2-8-1. Basic wiring diagram 1
Single type and simultaneous-operation multi system
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.)
Be careful to avoid miswiring when connecting the wires.
(Miswiring will damage the units.)
(for 3-phase outdoor unit: X, T, U, D Types)
1
2
12
1
2
U2
U1
L
N
N
U1
U2
1
2
L3L2L1
L
N
1
2
U2
U1
L
N
System address rotary switch
(Set to “0” at the time of shipment.)
Inter-unit control wiring
Ground
Outdoor unit
Leakage breaker
Ground
Ground
WHT BLK
Indoor
unit
Indoor
unit
Indoor
unit
Ground
(Optional)
Wired remote
controller
Leakage breaker
For a simultaneous-operation multi
system, a maximum of 4 indoor units
can be connected to 1 outdoor unit.
Remote controller crossover wiring
for group control
Remote controller wiring
Remote controller wiring
Fig. 2-5-2
(for 3-phase outdoor unit: XM Type)
1
2
12
1
2
U2
U1
L
N
N
U1
U2
1
2
L3L2L1
L
N
1
2
U2
U1
L
N
Fig. 2-5-1
System address rotary switch
(Set to “0” at the time of shipment.)
Inter-unit control wiring
Outdoor unit
Ground
Leakage breaker
Leakage breaker
Ground
Indoor
unit
Ground
WHT BLK
Wired remote
controller
Ground
Indoor
unit
Indoor
unit
For a simultaneous-operation multi
system, a maximum of 4 indoor units
can be connected to 1 outdoor unit.
Remote controller crossover
wiring for group control
(Optional)
SM830161Book.indb5SM830161Book.indb5 2008/06/039:09:022008/06/039:09:02