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8. CONTROL BLOCK DIAGRAM
8-1. Indoor Control Circuit
Connection Interfase
(Option)
Indoor control P.C. board
(MCC-1402)
Duct type nothing
Separately sold parts
for Ceiling type
Separately sold parts
for Ceiling type
TA sensor
#1
#3
AB
Indoor unit
Main (Sub) master remote controller
Fan motor
control
circuit
AC
synchronous
signal input circuit
Serial
send/receive
circuit
Run
Warning Ready
Thermo. ON
Cool/Heat Fan
Outside output
Driver
Remote controller
communication
circuit
CPU
Remote controller
communication
circuit
TCC-LINK
communication
circuit
TC sensor
TCJ sensor
Float input
Louver
motor
Drain
pump
Indoor
fan
motor
Outdoor unit
123
123
DC5V
CPU
LCD
driver
Display
LCD
Weekly timer
Secondary
battery
DC5V
*
2
CN2
CN1
AB
123
Outdoor
unit
Same as
the left
*
1
#2
AB
123
Outdoor
unit
Same as
the left
*
1
*1 Connection Interface is attached to
master unit.
(In case of group control operation)
*2 Weekly timer is not connectable to
the sub remote controller.
P.C. board
(MCC-1440)
Central control remote controller
(Option)
CPU
EEPROM
Power
circuit
Power
circuit
Power
circuit
Function
setup SW
Power circuit
Remote controller
communication circuit
Temporary
operation SW
Receive circuit Display LED
Buzzer
CPU
DC5V
Receiver P.C. board
Wireless remote controller kit
Option Option
Optional only for
4-way Air Discharge Cassette
and Under Ceiling type models
DC280V
U3
U4
DC20V
DC12V
DC5V
Function setup
Key switch
CPU
Display
LCD
Display
LED
Function setup
Key switch