Eev (Electronic Expansion Valve): Optimized Refrigerant Control - Samsung mini DVM Series Service Manual

Operating Instructions and Installation
5. EEV(Electronic Expansion Valve) : Optimized Refrigerant Control
The EEV distributes the optimized amount of refrigerant to each indoor unit with minimal energy used by the Digital Scroll
compressor.
The indoor units senses not only the temperature difference between inlet and outlet of evaporator but also the superheat and
room temperature profiles and finally determines the refrigerant flow rates directly linked with EEV steps.
1
0.5
0
-0.5
-1
10-8
❶
❷
∆Q=3
∆Q=2
❹
∆Q=0
∆Q=3
∆Q=2
❶ Falling room temperature
❷ Rising room temperature
❸ Open electronic expansion valve
❹ Closed electronic expansion valve
❸
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