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<In the case of combining with outdoor units other than Super Modular Multi System u series (SMMS-u)>
Control wiring between indoor units, and outdoor unit (L2, L3)
(2-core shield wire, non-polarity)
Central control line wiring (L1)
(2-core shield wire, non-polarity)
Control wiring between outdoor units (L4)
(2-core shield wire, non-polarity)
•
The length of the communication line (L1+L2+L3) means the total length of the inter-unit wire length between
indoor and outdoor units added with the central control system wire length.
Central control device
<Other than U series>
Outdoor unit
(SMMS-i)
(SMMS-e)
(MiNi SMMS)
etc.
<U series>*
Indoor unit
<U series>*
Remote controller
*Even if the indoor unit and the remote controller are "other than U series", the wiring specification are the same.
35-EN
1.25 mm²
(Up to 1000 m)
Wire size :
2.0 mm²
(Up to 2000 m)
Wire size :
1.25 to 2.0 mm²
(Up to 100 m)
[Communication line]
(L1+L2+L3) = Up to 2000 m
Remote controller wiring
2-core with non-polarity wire is used for wiring of the remote controller wiring and group remote controllers wiring.
Remote controller wiring, remote controller inter-unit
wiring
Total wire length of remote controller wiring and remote
controller inter-unit wiring = L + L1 + L2 + ... Ln
T
t o
l a
i w
e r
e l
n
g
h t
f o
e r
m
o
e t
c
o
t n
o r
e l l
i r
t n
r e
CAUTION
communication specifications when carrying out the installation, maintenance, or repair. For its details, refer
Indoor unit
Remote
L
controller
L1
wiring
Remote
Remote controller inter-unit wiring
controller
Max. number of connectable indoor units, and communication type
Outdoor unit
U series
U series
Indoor unit
U series
U series
Remote controller
U series
Communication type
TU2C-Link
Max. number of
16
connectable unit
: Other than U series
– 18 –
Wire size: 0.5 mm² to 2.0 mm²
In case of wired type only
In case of wireless type
included
u -
n
t i
w
r i
n i
g
=
L
1
+
L
2
+
...
L
n
r
.
Indoor unit
Indoor unit
L
2
L
n
Unit type
U series
U series
U series
U series
U series
U series
TCC-Link
8
Up to 500 m
Up to 400 m
U
p
o t
2
0
0
m
Indoor unit
U series
EN
ID
ID
36-EN
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