SUPER DIGITAL

8-1. Indoor Controller Block Diagram
8. INDOOR CONTROL CIRCUIT
8-1-1. Connection of Main (Sub) Remote Controller
Main (sub) master remote controller (Max. 2 units)
Weekly timer
Display LCD
Function setup
Display LCD
LCD driver
Display LED
MCU
Key switch
DC5V
CN2
CN1
MCU
Function setup
Key switch
Remote controller
communication circuit
Power circuit
∗3
Power
circuit
DC5V
Secondary
battery
Indoor unit
#1 (Master)
A
B
#2
(Follower)
A
B
#3
(Follower)
A
B
Indoor control P.C. board (MCC-1570)
DC20V
DC5V
DC12V
Remote controller
communication circuit
EEPROM
TA sensor
× 4
Louver
motor
Humidifier output
Driver
MCU
TC sensor
TCJ sensor
Float input
Same as left
∗2
Same as left
∗2
Drain
pump
HA
Indoor
fan motor
DC280V
Power circuit
MCU
Fan motor
control circuit
Outside
output
Run
Warning
Defrost
Thermo. ON
COOL
HEAT
FAN
AC
synchronous
signal input circuit
Auto grille
panel
Serial send/
receive circuit
1
2
3
1
2
3
1
2
3
Outdoor unit
Outdoor unit
* Case of TCC-LINK adapter
Case of TCC-LINK adapter
(Option)
TCC-LINK
adapter P.C. board
(MCC-1440)
1
2
3
Up to 8 units are connectable. ∗1
∗1 However Max.7 units are connectable in
case of mounting network adapter when two
main (sub) remote controllers are connected.
∗2 The network adapter is mounted to only 1 unit.
TCC-LINK adapter is mounted to the master unit.
∗3 Connection of the weekly timer to the sub
remote controller is unavailable.
TCC-LINK
Central controller
(Option)
U3
U4
TCC-LINK
communication circuit
Outdoor unit
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