Configuration Of Control Circuit - Toshiba MMC-AP0188HPUL Service Manual

6. CONFIGURATION OF CONTROL CIRCUIT

6-1. Indoor Unit
6-1-1. Indoor Controoler Block Diagram
1. Connection of wired remote controller
Indoor unit
#1 (Header)
PMV
Louver
motor
Drain
pump
Option
Indoor
fan motor
DC
280V
Max. 8 units are connectable.
*1 The schedule timer cannot be connected to the simple wired
remote controller.
Wired (Simple) header 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)
DC20V
Remote controller
communication circuit
DC5V
DC12V
Driver
Outside output
Start/Alarm/Ready
Thermostat ON
COOL/HEAT/FAN
Fan motor
control circuit
Power
circuit
L1
Power supply
1Ø208/230V, 60Hz
- 28 -
Schedule timer
Function setup Display
LCD
Key switch
CN1
CN2
DC5V
Power
circuit
DC5V
* 1
EEPROM
TA sensor
TC1 sensor
MCU TC2 sensor
TCJ sensor
Float input
HA
BUS
communication
circuit
L2
U1 U2
U1 U2
Outdoor unit
LCD
driver
Function setup
CPU
Key switch
Power Secondary
circuit battery
#2 #3
(Follower) (Follower)
A B A B
Same Same
as left as left
U1 U2 U1 U2
L2 L2
L1 L1
Power Power
supply supply
Outdoor Outdoor
unit unit
Indoor/Outdoor
communication