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6. INDOOR CONTROL CIRCUIT
6-1. Indoor Controller Block Diagram
6-1-1. Connection of Wired (Simple) Remote Controller
remitSchedule)stinu 2 .xaM( rellortnoc etomer retsam )simple(Wired
Central controller
(Option)
P.C. board
(MCC-1440)
* Case of “1:1 model” connection interface (Option)
Outdoor unit
Outdoor unit
321
321
321
Up to 8 units are connectable. 1
∗1 However Max.8 units are connectable in
case of mounting “1:1 model” connection interface
when two wired (simple) remote controllers are
connected.
∗2 The “1:1 model” connection interface is mounted
to only 1 unit.
“1:1 model” connection interface is mounted
to the header unit.
∗3 Connection of the schedule timer to the simple
remote controller is unavailable.
Same as left
∗2
#3
(Follower)
A B
AB
Same as left
∗2
#2
(Follower)
A B
DC5V
DC5V
Indoor unit
#1 (Header)
Indoor control P.C. board (MCC-1643)
Louver
motor
Drain
pump
Indoor
fan motor
CPU
Driver
DC12V
DC5V
DC20V
Outside
output
Remote controller
communication circuit
Display LCD Function setup
Key switch
CN2
CN1
3
CPU
Display LED
Display LCD LCD driver
CPU
Remote controller
communication circuit
Function setup
Key switch
Power circuit
Power circuit Start/Alarm
DC280V
Fan motor
control circuit
EEPROM
TA sensor
TC sensor
TCJ sensor
Float input
HA
Wireless/
Occupancy
sensor
TCC-LINK
communication circuit
Serial send/
receive circuit
AC
synchronous
signal input circuit
Power
circuit
Secondary
battery
Outdoor unit
321
U3
U4
Application
control kit
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