– 93 –
6-1-3. When Both Main (Sub) Remote Controller and Wireless Remote Controller Kit
Connected
<4-way Cassette Type> (MMU-AP
∗∗∗
2H)
MCU
DC 280V
MCU
MCU
DC5V
DC5V
DC5V
CN2 CN1
DC5V
MCU
EEPROM
MCU
MCU
DC5V
DC12V
DC20V
X
Y
AB AB AB
L N U1
U1 U2
U2
HA
R S
U1 U2
R S
U1 U2
EEPROM
Weekly timerMain (sub) center remote controller (up to 2 units)
Power
supply
circuit
Function setting
Key switch
Remote controller
communication circuit
Display
LCD
Display
LED
*3
Rechargeable
battery
LCD
driver
Display
LCD
Function setting
Key switch
Power
supply
circuit
Network adaptor (optional)
Indoor unit
Switch setting
Power supply circuit
Transformer
Central
control
remote
controller
(optional)
Network
adaptor P.C.
board
(MCC-1401)
Remote controller
communication
circuit
AI-NET
communication
circuit
#1
(In case of
AI-NETWORK)
Indoor control P.C. board (MCC-1570)
PMV
Louver
motor
Drain
pump
Indoor
fan
motor
×4
Power supply circuit
Fan motor
control circuit
TA sensor
TCI sensor
TC2 sensor
TCJ sensor
Float input
Driver
Remote
controller
communication
circuit
*
Not applicable to concealed
duct high static pressure type
In operation
Alarm
Getting ready
Thermostat ON
COOL
HEAT
FAN
AC
synchronization
signal input circuit
BUS
communication
circuit
External
output
Indoor/outdoor communication
Outdoor
unit
Power source
1Ø 220-240V, 50Hz
1Ø 220V, 60Hz
Outdoor
unit
Outdoor
unit
Power
source
Power
source
#2 #3
Sameas left
*2
Sameas left
*2
Up to 8 units
can be
connected. *1
*1 Only up to
7 units if a
network
adaptor is
installed.
*2 The
network
adaptor
can only be
installed in
one unit.
*3 A weekly
timer
cannot be
connected
to a sub
remote
controller.
Emergency
operation SW
Wireless remote controller kit
Sensor P.C. board
Power
supply circuit
Remote controller
communication
circuit
Buzzer
Sensor circuit Display LED
Function
setting SW
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