In Case Of Connection Of Wireless Remote Controller - Carrier TOSHIBA MMD-UP0071BHP-UL Service Manual

9-1-2. In case of connection of wireless remote controller.

Display
Operation
Indoor unit
#1 (Heder)
Indoor control P.C. board (MCC-1720)
DC20V
DC12V
Drain
pump
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∗∗∗.
A B
Remote controller
communication circuit
DC5V
Driver
MCU
Fan motor
control circuit
EEPROM2
EEPROM1
TA sensor
TC1 sensor
TC2 sensor
MCU
TCJ sensor
Float input
HA
Bus communication
circuit
AC
synchronous
signal input circuit
L1 L2
Uv(U1) Uv(U2)
Outdoor Unit
Power supply
208/230-1-60
- 34 -
#2 #3
(Follower) (Follower)
A B A B
Same as left Same as left
Power Power
Supply Supply
Outdoor unit Outdoor unit