Toshiba MML-AP0074NH-E Service Manual page 104
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Also See for MML-AP0074NH-E:
- Owner's manual (26 pages) ,
- Installation manual (32 pages) ,
- Owner's manual (268 pages)
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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.
Power supply
Power supply
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
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.
Communication line
Control wiring between indoor units, and outdoor unit
Wire size
(2-core shield wire)
Central control line wiring (2-core shield wire)
Wire size
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.
Wired remote controller wiring, remote controller inter-unit wiring
Total wire length of wired remote controller wiring and remote controller
inter-unit wiring = L + L1 + L2 + ... Ln
Total wire length of wired remote controller inter-unit wiring = L1 + L2 + ... Ln
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.
Indoor unit
Indoor unit
Wired remote
controller wiring
L
1
L
2
Wired remote
Remote controller inter-unit wiring
controller
EN
FR
DE
220–240V ~ 50Hz
IT
220V ~ 60Hz
ES
PT
2.5 mm
2
NL
GR
RU
TR
(Up to 1000 m) 1.25 mm
2
CS
(Up to 2000 m) 2.0 mm
2
(Up to 1000 m) 1.25 mm
2
LV
(Up to 2000 m) 2.0 mm
2
SK
SI
Wire size 0.5 mm
2
to 2.0 mm
2
In case of wired type only
Up to 500 m
In case of wireless type included
Up to 400 m
Up to 200 m
Indoor unit
Indoor unit
L
n
(Max. 8 units)
Control wiring between indoor and outdoor units
NOTE
An outdoor unit that is interconnected to the indoor units automatically becomes the header unit.
Wiring example
Outdoor Power supply
Outdoor Power supply
380V-415V ~, 50Hz
380V-415V ~, 50Hz
380V ~, 60Hz
380V ~, 60Hz
Earth leakage
Earth leakage
breaker
breaker
Header outdoor unit
Follower outdoor unit
Earth
L1 L2 L3 N
U1 U2 U3 U4
U5 U6
Earth
L1 L2 L3 N
U1 U2 U3 U4
terminal
terminal
Control wiring between outdoor units
Control wiring between indoor and outdoor units
Control wiring between indoor units
Indoor unit
Indoor unit
Earth
Earth
L N
U1 U2
A B
L N
U1 U2
A B
Indoor power supply
A B
A B
220-240V, ~, 50Hz
Remote controller
Remote controller
220V ~, 60Hz
Earth leakage
Pull box
Pull box
breaker power
switch
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.
Wiring diagram
Terminal block for
remote controller
wiring of indoor unit
A
B
Wired remote controller wire
(Procured locally)
Address setup
Set up the addresses as per the Installation Manual supplied with the outdoor unit.
U5 U6
Indoor unit
Indoor unit
Earth
Earth
L N
U1 U2
A B
L N
U1 U2
A B
A B
Remote controller
Pull box
Terminal block
A
Wired rem
B
controller unit
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