Samsung AVXCSH023/032/040CE Service Manual page 11

Product Specifications
2) Vapor injection technology
Improved cooling and heating performance and COP by a new technology of two stage compression. As injecting optimized
mid-range pressure refrigerant, this technology achieved the high heating performance and COP under the lowest temperature,
which leads the industry.
• Increase refrigerant flow rates with a new vapor injection technology.
• Improved sub-cooling necessary for long piping installation while increasing cooling and heating performance and COP.
DVI compressor
3) Turbo intercooler (RVXVH075/100/125FE, RD075/100/125VHXFA Only)
Turbo intercooler (Shell & tube type) improves cooling and heating COP and secures reliable operation of installation with long
piping [200m(656ft)].
Subcooling liquid refrigerant
Low temperature gas
refrigerant
4) Plate type intercooler (RD075/100/125VRXFA Only)
The plate type intercooler is the new concept intercooler technology which is more advanced than the existing double layered
pipe type and Shell & Tube type heat exchanger. The plate type intercooler increases heat exchange efficiency by 30% and
provides stable performance with long piping and vertical piping.
EER Heat transfer efficiency
Efficiency Rate
2-2
Evaporator (ID)
2nd
Mo
EEV
Solenoid Valve
Mi
Vapor injection
Mo + Mi
Condenser (OD)
Low temp. liquid
refrigerant
Saturated liquid
refrigerant
Double layered pipe
Shell & Tube
Plate type
More mass flow passing Indoor unit
increases heating capacity.
1st Expansion
2nd
Expansion
Flash tank
Vapor injection
1st
EEV
Vapor injection reduces the liquid enthalpy in flash tank,
facilitating heat exchanger to absorb heat more.
Temperature
High
Low
Plate type
Mo + Mi
Injection
Mi
point
Mo
Enthalpy (kJ/kg)
Turbo
Inter-
Cooler
DVI
Compressor
Structure Diagram
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