Configuration Of Control Circuit - Carrier TOSHIBA MMK-UP0071HP-UL Service Manual

8. CONFIGURATION OF CONTROL CIRCUIT

8-1. Indoor Controller block diagram (MCC-1696)
8-1-1. Connection of wired 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∗∗∗.
Wired header remote controller (Up to 2 link)
Display LCD
Display LED
CPU
Remote controller
communication circuit
Central control
remote controller
(Sold separately)
U3 U4
Central control
communication circuit
DC20V
DC12V
DC5V
Driver
Buzzer
Driver
Outside
output
Alarm/
Ready/
Thermo. ON/
Fan motor
COOL/HEAT/
control circuit
DC15V
Function setup
Key switch
CN2
CN1
DC5V
Power circuit
∗1
A B
Remote controller
communication circuit
CPU
RL78/G13
Bus communication
Run/
AC
synchronous
signal input circuit
FAN
L2 Uv(U1)
L1
Power supply
208/230-1-60Hz
- 27 -
Schedule timer (weekly timer mode)
Display
LCD driver
LCD
Function setup
CPU
Key switch
DC5V
Power Secondary
circuit battery
Sold separately
Follower unit
#2
A B
EEPROM
TA sensor
Same as
the left
TC1,TC2
sensor
TCJ sensor
HA
Wireless remote
signal setting
(A/B)
circuit
Power
supply
Outdoor
unit
Uv(U2)
Outdoor Unit
#3
A B
Same as
the left
Power
supply
Outdoor
unit