106
21
SMMS 2-way Air Discharge Cassette Type
Installation Manual
EN-41
EN-42
Thermal insulation to wiring connecting port
R
emote 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
Address setup
Set up the addresses as per the Installation Manual supplied with the outdoor unit.
W
iring on the ceiling panel
According to the Installation Manual of the ceiling panel, connect the connector (5P: White) of the ceiling panel to the
connector (CN33: White) on P.C. board of the electric parts box.
Notched section
Adhered surface
A
B
A
B
Terminal block
Remote controller unit
Remote controller wire
(Field supply)
Terminal block for remote controller
wiring of indoor unit
W
iring 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
U1 U2
U1 U2 U3 U4
L1 L2 L3 N
U5 U6
L N
A B
A B
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
Earth
terminal
Control wiring between outdoor units
Circuit breaker
Outdoor Power supply
380 V - 415 V
~
, 50 Hz
380 V
~
, 60 Hz
Outdoor Power supply
380 V - 415 V
~
, 50 Hz
380 V
~
, 60 Hz
Circuit breaker
Header outdoor unit
Follower outdoor unit
Control wiring between indoor and outdoor units
Control wiring between indoor units
Indoor unit
Earth
Indoor power supply
220 V - 240 V
~
, 50 Hz
220 V
~
, 60 Hz
Remote controller
Pull box
Circuit breaker,
Power switch
Pull box
Pull box
Remote controller
Remote controller
Indoor unit
Earth
Indoor unit
Earth
Indoor unit
Earth
Earth
terminal
Group control
