Hitachi RAS-80YH5A - Page 42

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BLOCK DIAGRAM
MODEL RAS-80YH5A/RAC-80YH5
Wireless receive
circuit
Filter.
Operation.
Timer.
Auto sweep motor for
Air deflector
LCD wireless
Heat exchanger
thermistor
Room temperature
thermistor
Reset circuit
Initial setting circuit
Temporary switch
Electric Expansion valve
drive circuit
Electric
Expansion
valve
Outdoor microcomputer / HIC (AX-6V)
Trip signal
synthesis circuit
L
N
SPM2
Outdoor
unit
Terminal
board
Indoor microcomputer (AX-7X30)
DC35V
Power
circuit
Noise filter
Power circuit
A
B
A
B