For INDOOR UNIT | |
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– 25 –
Discharge temp. sensor
Outdoor air temp. sensor
Suction temp. sensor
Heat exchanger
temp.sensor
Indoor unit send/receive circuit
M.C.U
•PWM synthesis function
•Input current release control
•IGBT
•Outdoor fan control
•High power factor correction control
•Inverter output frequency control
•A/D converter function
•P.M.V. control
•Discharge temp. control
•
•Signal communication to indoor unit
Current
detect
Gate drive
circuit
Current
detect
Gate drive
circuit
OUTDOOR UNIT
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| High Power |
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| Clock |
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| factor Correction |
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| frequency |
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| circuit |
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| 4MHz |
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Noise |
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| Input current |
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| Converter |
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Filter |
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| Driver circuit |
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| Relay |
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| of P.M.V. |
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| circuit |
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Inverter
(DC → AC)
Inverter
(DC → AC)
Outdoor
Fan motor
Compressor
NO FILE
P.M.V. : Pulse Motor Valve
P.M.V. valve