GR
NL
PT
ES
IT
DE
FR
RU
SI
SK
LV
CS
TR
EN
Power supply wire and communication wires specifi cations
Power supply wire and communication wires are procured locally.
For the power supply specifi cations, follow the table below. Power supply wiring and communication wiring are to be
procured locally.
For specifi cations of the power capacity of the outdoor unit and the power supply wires, refer to the Installation Manual
supplied with the outdoor unit.
Indoor unit power supply
• Prepare an exclusive power supply for the indoor unit independently of the outdoor unit.
• Arrange the power supplies to the indoor and outdoor units, so that a common earth leakage breaker and main
switch can be used.
• Power supply wire specifi cation: Cable 3-core 2.5 mm
2
,
in conformity with Design H07 RN-F or 60245 IEC 57.
W
Power supply
Control wiring, Central controller wiring
• Use a 2 core non polarity wire.
• To prevent any possible noise issues, use a shielded 2 core wire.
• The total stated length of communication wiring is determined by the interconnecting length of indoor to outdoor
wire plus the length of the central control communication wire.
W
Communication line
Wired remote controller wiring
This wiring is not required when using the supplied wireless remote controller.
• For wiring remote controllers a 2 core non polarity wire must be used.
Power supply
220–240V ~ 50Hz
220V ~ 60Hz
Power supply switch/Earth leakage breaker or power supply wiring/fuse rating for indoor units should be selected by the accumulated
total current values of the indoor units.
Power supply wiring
Below 50 m
2.5 mm
2
Control wiring between indoor units, and outdoor unit
(2-core shield wire)
Wire size
(Up to 1000 m) 1.25 mm
2
(Up to 2000 m) 2.0 mm
2
Central control line wiring (2-core shield wire)
Wire size
(Up to 1000 m) 1.25 mm
2
(Up to 2000 m) 2.0 mm
2
Wired remote controller wiring, remote controller inter-unit wiring
Wire size 0.5 mm
2
to 2.0 mm
2
Total wire length of wired remote controller wiring and remote controller
inter-unit wiring = L + L1 + L2 + … Ln
In case of wired type only
Up to 500 m
In case of wireless type included
Up to 400 m
Total wire length of wired remote controller inter-unit wiring = L1 + L2 + … Ln
Up to 200 m
CAUTION
The remote controller wire (Communication line) and AC220–240V 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,
etc.
n
L
2
L
1
L
Wired remote
controller
Wired remote
controller wiring
Indoor unit
Indoor unit
Indoor unit
Indoor unit
(Max. 8 units)
Remote controller inter-unit wiring
220-240V, ~, 50Hz
220V ~, 60Hz
380V-415V ~, 50Hz
380V ~, 60Hz
U1 U2
U1 U2 U3 U4
L1 L2 L3 N
U5 U6
L N
A B
A B
380V-415V ~, 50Hz
380V ~, 60Hz
U1 U2 U3 U4
L1 L2 L3 N
U5 U6
U1 U2
L N
A B
A B
U1 U2
L N
A B
A B
U1 U2
L N
A B
Control wiring between indoor and outdoor units
Address setup
Set up the addresses as per the Installation Manual supplied with the outdoor unit.
Wired remote controller wiring
• As the wired remote controller wire has non-polarity, there is no problem if connections to indoor unit terminal
blocks A and B are reversed.
W
Wiring diagram
A
B
A
B
Terminal block for
remote controller
wiring of indoor unit
Terminal block
Wired rem
controller unit
Wired remote controller wire
(Procured locally)
NOTE
An outdoor unit that is interconnected to the indoor units automatically becomes the header unit.
Wiring example
Outdoor Power supply
Outdoor Power supply
Control wiring between indoor units
Earth leakage
breaker
Earth leakage
breaker
Earth
terminal
Earth
terminal
Header outdoor unit
Follower outdoor unit
Control wiring between outdoor units
Control wiring between indoor and outdoor units
Indoor unit
Indoor unit
Indoor unit
Indoor unit
Earth
Earth
Earth
Earth
Indoor power supply
Earth leakage
breaker power
switch
Pull box
Pull box
Pull box
Remote controller
Remote controller
Remote controller
103
Содержание MML-AP0074NH-E
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