Carrier TOSHIBA MMK-UP0301HP-UL Service Manual page 28

8-1-2. Connection of Wireless Remote Controller
Indoor unit
#1 Header unit
Indoor control P.C.
board (MCC-1696)
Receiver and
Display P.C. board
(WP-033)
Display LED
Receiver unit
Louver
motor
Indoor
fan motor
Power circuit
DC280V
Max.8 or 16 units are connectable.
(depending on connection system)
*1 The schedule timer can be connected
to only RBC-AMT∗∗∗.
Central control
remote controller
(Sold separately)
U3
Central control
communication circuit
DC20V
DC12V
DC5V
Driver
Buzzer
Outside
output
Warning/
Defrost/
Thermo. ON/
Fan motor
COOL/HEAT/
control circuit
DC15V
U4 A B
Remote controller
communication circuit
CPU
RL78/G13
Driver
Run/
AC
synchronous
signal input circuit
FAN
L2 Uv(U1)
L1
Power supply
208/230-1-60Hz
- 28 -
Follower unit
#2
A
EEPROM
TA sensor
Same as
the left
TC sensor
TCJ sensor
HA
Wireless remote
signal setting
(A/B)
Bus communication
circuit
Power
supply
Outdoor
unit
Uv(U2)
Outdoor Unit
#3
B A B
Same as
the left
Power
supply
Outdoor
unit