3-108
P
Q
PMV
TC2
TC1
TA
Remote
controller
Indoor controller
Serial circuit
C
B
A
BUS
communication
circuit
Multiplexer
MCU
TMP87CM40N
(TMP87PM40AN)
Refrigerating
cycle control
system
communication
Pressure
sensor
(High, Low)
Function/
Model set up
address SW
PMV
driving circuit
Relay
driver
Function/Model
set up SW
LED display alarm
Indoor/outdoor
communication
Float SW
Power/motor P.C. B
(MCC-1355)
Main P.C. board (MCC-1361)
MF-C
Louver
Drain pump
Fan
motor
6.3A
12V 5V
L
N
Power
circuit
Power
transformer
Power supply
Ø1,
220–240V, 50Hz
200V, 60Hz
3-7-1-2. Indoor control block diagram (MCC-1361 : Main P.C. board)
2-way air discharge cassette, Concealed duct type
NOTE :
The P.C. board of the indoor unit is divided into two boards for each function.
1. Main P.C. board (MCC-1361) Controller for entire units (PMV, louver, drain pump, etc.)
2. Power/Motor P.C. board (MCC-1355) Power supply circuit, fan motor drive part