Advertisement
<U series>
Central control device
<U series>
Outdoor unit
U1
<U series>*
U1 U2
Indoor unit
<U series>*
Remote controller
* Even if the indoor units, the remote controllers, and the central control device are models other than U series,
their system diagrams for the wiring specifications are the same as the system diagram above.
REQUIREMENT
• For the central control line (L1) when U-series outdoor units and outdoor units other than U-series are connected
to the central control device, follow the communication wiring specifi cations for outdoor unit other than U-series.
• Using the same wire type and size, wire each line below.
If the different wire types and sizes are mixed in each line, communication trouble is caused.
• Central control line and wiring between indoors and outdoor units other than U-series
• Uv line (wiring between indoor and outdoor units) and Uc line (wiring between outdoor and outdoor units) in
U-series
• Wiring between outdoor and outdoor units other than U-series
• For communication wiring specifi cations for outdoor unit other than U-series, refer to the Installation Manual
attached to the outdoor unit to be connected.
[Uh-line and line / wiring between outdoor and outdoor units other than U series]
UP to 2000 m (L1 + L5 + L6)
[Uv line and Uc line in U series]
Up to 1000 m (L2)
Up to 1000 m (L3 + L4)
[Between outdoor and outdoor units other than U series]
UP to 100 m (L7)
If U series models (TU2C-Link) are combined with models other than U series (TCC-Link), the wiring specifications
and maximum number of connectable indoor units will be changed.
Uh
U3 U4
U3
U4
L1
U3 U4
U3 U4
U3 U4
U4
U3
Uh
Uh
Uh
Uv
Uc
Uv
Uc
Uv
Uc
U2
U5 U6
U1
U2
U5 U6
U1
U2
U5 U6
U2
U1
L4
L3
L2
U1 U2
U1 U2
U4
U4
U4
Uv
Uv
Uv
A
B
A
B
A
B
U6
U6
U6
<Other than U series>
U3 U4
Outdoor unit
(SMMS-i)
U1
U2
U2
(SMMS-7 )
(MiNi SMMS)
etc.
<U series>*
U1 U2
U4
U1 U2
U4
Indoor unit
Uv
Uv
A
B
U6
<U series>*
Remote controller
Group control of multiple indoor units (16 units) through a single remote controller switch
Indoor unit
N
A
Remote controller
Max. number of connectable indoor units, and communication type
Outdoor unit
Indoor unit
Remote controller
Communication type
Max. number of connectable units
: Other than U series
– 28 –
U3 U4
U3 U4
U4
U3
U5 U6
U1
U1
U2
U5 U6
U1
U2
U5 U6
L7
L5
L6
U1 U2
U4
U1 U2
U4
U1 U2
Uv
Uv
Uv
A
U6
B
A
U6
B
A
U6
B
o
1 .
N
o
2 .
N
o
3 .
N
o
4 .
B
A
B
A
B
A
B
(A.B)
Unit type
U series
U series U series U series
U series
U series
U series U series
U series
U series
U series
TU2C-Link
TCC-Link
16
U4
A
U6
B
N
. o
15
N
. o
16
A
B
A
B
U series
EN
8
EN
EN
ID
Advertisement
Chapters
