Toshiba MMD-VNK502HEX1E Installation Manual page 66

 Remote controller wiring
Wiring diagram
Remote controller wire
(locally procured)
Indoor unit remote
A
controller terminal
B
block
* Use a 0.5 mm 2 to 2 mm 2 wire.
 Address setting
Refer to the Installation Manual of the outdoor unit for address setting.
* When the Air to Air Heat Exchanger with DX Coil Unit system linked with indoor air conditioners is used, set the
Air to Air Heat Exchanger with DX Coil Unit as "Follower", referring to "Setting the address manually using the
remote controller" in the Installation Manual of the outdoor unit.
 Switching between Extra High and High
When switching to Extra High, connect the black lead wire (Extra High) to the connector.
* The Orange lead wire (High) is connected as factory default.
* Connect the black lead wire both to the air supplying motor (white connector) and the air exhausting motor (red
connector).
* Refer to "Connection diagram" for the connection method.
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Remote controller unit
A
B
Remote controller terminal block
Air supply Air exhaust
(white connector)
(red connector)
– 65 –
 Wiring between indoor and outdoor units
NOTE
An outdoor unit connected with control wiring between indoor and outdoor units wire becomes automatically the header
unit.
Wiring example
Outdoor Power supply
380 V - 415 V ~, 50 Hz
380 V ~, 60 Hz
Circuit breaker
Header outdoor unit
Earth
L1 L2 L3 N U1 U2 U3 U4 U5 U6
terminal
Control wiring between indoor and outdoor units
Indoor unit
Earth
L N U1 U2 A B
Indoor power supply
220 V - 240 V ~, 50 Hz
A B
220 V ~, 60 Hz
Remote controller
Circuit breaker, Pull box
Power switch
Outdoor Power supply
380 V - 415 V ~, 50 Hz
380 V ~, 60 Hz
Circuit breaker
Follower outdoor unit
Earth
L1 L2 L3 N U1 U2 U3 U4 U5 U6
terminal
Control wiring between outdoor units
Control wiring between indoor units
Indoor unit Indoor unit Indoor unit
Earth
Earth Earth
L N U1 U2 A B L N U1 U2 A B
A B A B
Remote controller Remote controller
Pull box Pull box
Group control
L N U1 U2 A B
130-EN