Toshiba MMU-AP0092H, Installation Manual

Page: 21 / 40

Toshiba
– 20 –
SMMS 4-way Air Discharge Cassette Type
Installation Manual
EN
„ Remote controller wiring
• As the remote controller wire has non-polarity, there is no problem if connections to indoor unit terminal
blocks A and B are reversed.
▼ Wiring diagram
„ 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
A
B
A
B
Terminal block for
remote controller
wiring of indoor unit
Remote controller wire
(Field supply)
Terminal block
Remote
controller unit
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
Outdoor Power supply
Earth
terminal
Earth
terminal
Outdoor Power supply
Earth leakage
breaker
Earth leakage
breaker
Header outdoor unit Follower outdoor unit
Control wiring between outdoor units
Control wiring between indoor and outdoor units
Control wiring between indoor units
Indoor unit Indoor unit Indoor unit Indoor unit
Earth Earth Earth Earth
Remote controller Remote controller Remote controller
Indoor power supply
Earth leakage breaker
power switch
Pull box Pull box Pull box
20-EN
+00EH99863501_6L_SMMS_4-way_IM1_printOnly.book Page 20 Thursday, September 11, 2008 9:29 AM