Toshiba Carrier MMU-AP0074HPUL Service Manual page 30

6-1-3. Connection of both wired remote controller and wireless remote controller
Indoor unit
#1 (Header)
Indoor control P.C. board
(MCC-1643)
PMV
Louver
motor
Drain
pump
Indoor
fan motor
DC
280V
Power
circuit
Max.8 units are connectable.
(depending on connection system)
*1 The schedule timer can be connected
to only RBC-AMT∗∗∗.
Wired header remote controller
Display LCD
CPU
EEPROM
Display LED
Remote controller
communication circuit
A B
DC20V
Remote controller
communication circuit
DC5V
DC12V
Driver
MCU
Outside output
Start/Alarm
Fan motor
control circuit
L N
Power supply
208/230-1-60
Schedule timer
Function setup
Key switch
CN2
CN1
DC5V
Power
circuit
* 1
#2
(Follower)
A
EEPROM
TA sensor
Same
TC1 sensor as left
TC2 sensor
TCJ sensor
HA
Wireless/
Occupancy
sensor
Application
control kit
BUS
communication
Power
circuit
supply
Outdoor
unit
U1 U2
Indoor/Outdoor
communication
U1 U2
Outdoor unit
- 30 -
LCD
Display
driver
LCD
Function setup
CPU
DC5V
Key switch
Power
Secondary
circuit
battery
#3
(Follower)
B A B
Same
as left
Power
supply
Outdoor
unit