1) DVI compressorEfficient and reliable DVI (Digital Vapor Injection) compressorcoupled with vapor injection technology has been applied toimprove cooling and heating performance and energyefficiency.2) Vapor injection technologyImproved 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 heatingperformance and COP under the lowest temperature, which leads the industry.3) Turbo intercoolerTurbo intercooler (Shell & tube type) improves cooling and heating COP and secures reliable operation ofinstallation with long piping (200m).I-1122 New technology of DVM PLUS III, DVM PLUS III HR PRODUCTS2-1. Digital hybrid systemDHS (Digital Hybrid System) is a brand new concept system composed of DVI (Digital Vapor Injection)compressor, vapor injection technology and turbo intercooler. These 3 factors together provide highly efficientperformance.DVICompressor VaporInjection TurboIntercoolerMoMiMo + MiMo + MiMiMo• 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.ÂEvaporator (ID)More mass flow passing Indoorunit increases heating capacity.1st ExpansionEnthalpy (kJ/kg)2ndExpansionVapor injection reduces the liquid enthalpy in flashtank, facilitating heat exchanger to absorb heat more.Condenser (OD)DVI compressorVapor injectionVapor injectionFlash tankInjectionpointSolenoid Valve2ndEEV1stEEV❷ Subcooling liquid refrigerant❹ Low temperature gasrefrigerant❸ Low temp. liquidrefrigerant❶ Saturated liquidrefrigerantTemperatureHighLow❹❸❶❷❶❷❸❹PWM valveDischarge portSuction portVaporinjectionportOil portGas inlet1. products(01~41) 3/14/08 22:01 Page 11