Toshiba MML-UP0071H-E Installation Manual page 17

 Wiring between indoor and outdoor units
NOTE
A wiring diagram below is an example for connection to SMMS-u series. For connecting to other outdoor unit
series, refer to the Installation Manual attached to the outdoor unit to be connected.
▼Wiring example
Outdoor Power supply
380 V - 415 V ~, 50 Hz
380 V ~, 60 Hz
Circuit breaker
Outdoor unit
Header outdoor
Uv Uh Uc
Earth L1 L2 L3 N U1 U2 U3 U4 S U 5 U6 S
terminal
S: The ground of a
shielded wire
Control wiring between indoor and outdoor units (Shield wire)
Control wiring between indoor units (Shield wire)
Indoor unit Indoor unit
Earth Earth
L N Uv(U1) Uv(U2) A B
Indoor power supply
A B
220 V - 240 V~, 50 Hz
220 V ~, 60 Hz
Remote controller
Circuit breaker,
Pull box Pull box
Power switch
31-EN
Outdoor Power supply
380 V - 415 V ~, 50 Hz
380 V ~, 60 Hz
Circuit breaker
Outdoor unit
Follower outdoor
Uv Uh Uc
Earth L1 L2 L3 N U1 U2 U3 U4 S U 5 U6 S
terminal
S: The ground of a shielded wire
Control wiring between outdoor units (Shield wire)
Indoor unit Indoor unit
Earth Earth
L N Uv(U1) Uv(U2) A B L N Uv(U1) Uv(U2) A B
A B A B
Remote controller Remote controller
Pull box
Group control
 Wire connection
REQUIREMENT
• Connect the wires matching the terminal numbers.
Incorrect connection causes a trouble.
• Pass the wires through the bushing of wire connection
holes of the indoor unit.
• Keep a margin (Approx. 100 mm) on a wire to hang
down the electrical control box at servicing or other
purpose.
• The low-voltage circuit is provided for the remote
controller. (Do not connect the high-voltage circuit)
1.Draw in the wire from the pipe hole (Knockout hole).
2.Provide adequate leugth to the wire and fix it with cord
clamp as shown in the figure.
L N Uv(U1) Uv(U2) A B
Control wire
between indoor and
outdoor units
R
(L)
Earth line
– 16 –
 Remote controller wiring
Strip off approx. 9 mm the wire to be connected.
 Wiring diagram
Terminal block for
remote controller wiring
of indoor unit
A
B
 Address setup
Set up the addresses as per the Installation Manual
Indoor / Outdoor control
wire Remote controller
supplied with the outdoor unit.
terminal block
Uv (U ) Uv (U ) A B
1 2
Earth screw
Power supply
terminal block
L N
Electrical control box
R(L) S(N)
Cord clamp
(For power supply)
Power supply wire
Remote controller wire
S
(N)
Power supply wire
Terminal block
Remote
A
controller
B
unit
Remote controller wire
(Locally procured)
32-EN