– 15 –
<In the case of combining with outdoor units other than Super Modular Multi System u series (SMMS-u)>
• 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.
REQUIREMENT
For connection of between indoor and outdoor units line / between outdoor and outdoor units line or central control
line, wire each line using wires with the same type and size. If different wire types and size are mixed and used in
a system, communication trouble is caused.
Control wiring between indoor units, and outdoor unit
(L2, L3)
(2-core shield wire, non-polarity)
Wire size:
1.25 mm²
2.0 mm²
(Up to 1000 m)
(Up to 2000 m)
Central control line wiring
(L1)
(2-core shield wire, non-polarity)
Control wiring between outdoor units
(L4)
(2-core shield wire, non-polarity)
Wire size:
1.25 to 2.0 mm²
(Up to 100 m)
U2
U4
U3
U4
U3 U4
Uh
U6
U4
U1 U2
A B
U6
U4
U1 U2
A B
U6
U4
U1 U2
A B
U6
U4
U1 U2
A B
U1
U3
㹊㸰
㹊㸱
㹊㸲
U2
U5 U6
U3 U4
U1
U2
U5 U6
U3 U4
U1
U2
U5 U6
U3 U4
U1
㹊㸯
Uv
Uv
Uv
Uv
[Communication line]
(L1 + L2 + L3)
= Up to 2000 m
L4
= Up to 100 m
Central control device
Outdoor unit
Indoor unit
Remote controller
<Other than U series>
<U series>*
<U series>*
(SMMS-i)
(SMMS-e)
(MiNi SMMS)
etc.
*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.
<U series>*
Remote controller wiring
• 2-core with non-polarity wire is used for the remote controller wiring and group remote controllers wiring.
CAUTION
CAUTION
•
The remote controller wire (Communication line) and AC 220 V to 240 V wires cannot be parallel to
contact each other and cannot be stored in the same conduits. If doing so, a trouble may be caused on
the control system due to noise or other factor.
• 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. Pay attentions to their communication
specifications when carrying out the installation, maintenance, or repair. For its details, refer to the “Communication
line" in
.
Max. number of connectable indoor units, and communication type
: Other than U series
REQUIREMENT
After carrying out installation of additional indoor unit, relocation, or repairing, set the addresses again.
For its detail, refer to the Installation Manual attached to the outdoor unit.
Remote controller wiring, remote controller inter-unit
wiring
Wire size: 0.5 mm² to 2.0 mm²
Total wire length of remote controller wiring and
remote controller inter-unit wiring = L + L1 + L2 + …
Ln
In case of one remote
controller
Up to 500 m
In case of two remote
controller
Up to 400 m
Max. length of each remote control wiring between indoor units = L1, L2, … , Ln
Up to 200 m
Unit type
Outdoor unit
U series
U series U series U series
Indoor unit
U series
U series
U series U series
Remote controller
Remote sensor
U series
U series
U series
U series
Communication type
TU2C-Link
TCC-Link
Max. number of connectable
units
16
8
L1
L
L2
Ln
Indoor unit
Remote controller inter-unit wiring
Indoor unit
Indoor unit
Indoor unit
Remote
controller
Remote
controller
wiring
For number of max. connectable units,
refer to the following table.
29-EN
30-EN
Summary of Contents for MML-UP0071H-E
Page 30: ...EB99841101 ...
