Configuraion Of Control Circuit; Indoor Controller Block Diagram (Mcc-1643); In Case Of Connection Of Wired Remote Controller - Toshiba Carrier MMU-UP0151YHP-UL Service Manual

8. CONFIGURATION OF CONTROL CIRCUIT

8-1. Indoor controller block diagram (MCC-1643)

8-1-1. In case of connection of wired remote controller

Indoor unit
#1 (Header)
PMV
Louver
motor
Drain
pump
Indoor
fan motor
DC
280V
Max.8 units are connectable.
(depending on connection system)
*1 The schedule timer can be connected
to only RBC-AMT∗∗∗.
Wired remote controller
(Up to 2 units)
Display LCD
Display LED CPU
EEPROM
Remote controller
communication circuit
A B
Indoor control P.C. board
(MCC-1643)
Remote controller
communication circuit
DC20V
DC5V
DC12V
Driver
Outside output
Start/Alarm
Fan motor
control circuit
Power
circuit
Power supply
208/230-1-60
- 29 -
Schedule timer
Function setup
Key switch
CN1
CN2
DC5V
Power
circuit
* 1
EEPROM
TA sensor
TC1 sensor
TC2 sensor
MCU
TCJ sensor
Occupancy
sensor
Application
control kit
BUS
communication
circuit
L1
L2
Uv(U1)
U1
Outdoor unit
Display
LCD
LCD
driver
Function setup
CPU
Key switch
DC5V
Power Secondary
circuit battery
#2 #3
(Follower) (Follower)
A B A
Same
Same
as left
as left
HA
Power Power
supply supply
Outdoor
unit
Uv(U2)
Indoor/Outdoor
communication
U2
B
Outdoor
unit