144-EN
143-EN
– 72 –
Be sure to keep the rule of below tables about size and length of communication wiring.
U3 U4
U1 U2
U1
U3
U2
U4
U5 U6
U1 U2
A B
U3 U4
U1 U2 U5 U6
U1 U2
A B
U1 U2
A B
U1 U2
A B
U1 U2
A B
U3 U4
U1 U2 U5 U6
U3 U4
U1 U2 U5 U6
U3 U4
U1 U2 U5 U6
U1 U2
A B
U1 U2
A B
U1 U2
A B
U3 U4
U1 U2 U5 U6
L1
L5
L6
L7
L4
3
L
2
L
Central
control
controller
Header
unit
Header
unit
Header
unit
Follower
unit
Follower
unit
Follower
unit
Indoor unit
Outdoor unit
Remote controller
Remote controller
Remote controller
Table-3
Super modular multi system
Table-1
Table-1
Table-2
Table-1
Table-2
Table-3
Table-3
Table-1
Table-1
Communication wiring between indoor and outdoor units (L1, L2, L3), Central control wiring (L4)
Wiring
2-core, non-polarity
Type
Shield wire
Size/Length
1.25 mm
2
: Up to 1000 m/2.0 mm
2
: Up to 2000 m (*1)
(*1): Total length of Communication wiring length for all refrigerant circuits (L1 + L2 + L3 + L4)
Table-2
Communication wiring between outdoor units (L5)
Wiring
2-core, non-polarity
Type
Shield wire
Size/Length
1.25 mm
2
to 2.0 mm
2
/Up to 100 m (L5)
Table-3
Remote controller wiring (L6, L7)
Wiring
2-core, non-polarity
Size
0.5 mm
2
to 2.0 mm
2
Length
• Up to 500 m (L6 + L7)
• Up 400 m in case of wireless remote controller in group control.
• Up to 200 m total length of communication wiring between indoor units (L6)
¿
Group control through a Remote Controller
Group control of multiple indoor units (8 units) through a single remote controller switch
A B
A B
A B
A B
A B
A B
(A.B)
Indoor unit
No.1
No.2
No.3
No.4
No.7
No.8
Remote controller
Connection of power wires and communication wires
Remove knockouts on the piping/wiring panel on the front of the unit and the panel on the bottom to get the power
and communication wires through the holes.
Knockout for the
communication wire
Knockout for the power
wire
Knockout for the power
supply wire
Piping/wiring panel
NOTE
Be sure to separate the power wire and communication wires.
1117101201-3 EN.indd 72
1117101201-3 EN.indd 72
8/8/2559 BE 3:49 PM
8/8/2559 BE 3:49 PM
