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8. CONFIGURATION OF CONTROL CIRCUIT
8-1. Indoor Unit
8-1-1. Indoor Controller Block Diagram
Compact 4-way Air Discharge Cassette Type
1. Connection of wired remote controller
Same
as left
*2
Same
as left
*2
#3 A B#2 A B
L
U1 U2
N
Power
supply
Outdoor
unit
L
U1 U2
N
Power
supply
Outdoor
unit
Max. 8 units are connectable. *1
*1 However in a case that the
network adaptor is installed
when 2 remote controllers
are connected, maximum
7 units are connectable.
*2 The network adaptor is
installed to only one unit.
*3 The weekly timer cannot be
connected to the simple
wired remote controller.
*4 Nome for high wall spearate
sold parts for under ceiling.
Function setup
CPU
DC5V
CPU
Power
circuit
Secondary
battery
DC5V
*
3
CN2 CN1
Wired remote controller
(Up to 2 units) Weekly timer
CPU
H8/3039
Driver
Remote
controller
communication
circuit
L
AB
NU1U2
U1 U2
Network adaptor (Option)
Indoor unit
#1
*4
Network
adaptor
P.C. board
(MCC-1401)
Indoor control P.C. board (MCC-1402)
DC5V
DC12V
DC5V
DC
280V
CPU
H8/3687
PMV
Drain
pump
None for Concealed
Duct type
BUS
communication
circuit
Power supply
1Ø220-240V, 50Hz
1Ø220V, 60Hz
AC
synchronous
signal input
circuit
CPU
TMP88CH
47FG
(TMP88PH47FG)
Start
Alarm
Ready
Thermostat ON
COOL
HEAT
FAN
Indoor/Outdoor
communication
Outside
output
*4
Power
circuit
Display
LCD
Display
LED
Display
LCD
LCD
driver
Remote controller
communication circuit
Remote controller
communication circuit
EEPROM
TA sensor
Transformer
Power circuit Switch setup
TCI sensor
TC2 sensor
TCJ sensor
Float input
HA
Key switch
Function setup
Key switch
Outdoor unit
Power
circuit
Fan motor
control circuit
Louver
motor
Indoor
fan
motor