220–240 V ~50Hz
220–230 V ~60Hz
MICRO-COMPUTER BLOCK DIAGRAM
Driver circuit
of P.M.V.
Heat exchanger
temp.sensor
Suction temp.
sensor
Outdoor air
temp. sensor
Discharge
temp. sensor
Indoor unit
send/receive
circuit
Relay
circuit
Noise
Filter
Converter
(AC → DC)
Clock
frequency
4MHz
High Power
factor Correction
circuit
Input current
sensor
P.M.V. : Pulse Motor Valve
M.C.U. : Micro Control Unit
For INDOOR UNIT
4-way
valve
P.M.V.
Inverter
(DC → AC)
Gate drive
circuit
Gate drive
circuit
Inverter
(DC → AC)
Outdoor
Fan motor
Compressor
MCC-1645 (P.C.B) OUTDOOR UNIT
Current
detect
Current
detect
M.C.U
PWM synthesis function
Input current release control
IGBT over-current detect control
Outdoor fan control
High power factor correction control
Inverter output frequency control
A/D converter function
P.M.V. control
Discharge temp. control
4-way valve control
Signal communication to indoor unit
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8-3. RAS-24PKVSG-E / RAS-24PAVSG-E
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