4-Way Cassette Type - Samsung AVMKH020EA4 Service Manual

Block Diagram

12-1-3 4-Way cassette type

485 Comm. Control (Non polarity)
Indoor Unit Setting Up(Option) S/W
Display
Step Motor
Buzzer Control
Indoor Unit Temperature
Indoor Unit Fan Control
Electronic Expansion Valve Control
12-4
Centralized Control
*Wired remote controller
MAIN PCB
485 Comm.
Control
Non polarity
Control
MICOM
Electronic
Expansion Valve
Control
Option Setting Up
S/W
Manual Address
Wired remote
controller Power
Centralized
*Wired remote
communication
Samsung Electronics
Control
controller