QuanGu refrigeration company during twenty years, we mainly focus on refrigeration unit (condensing unit, air cooler, chiller and rack unit). We have put into two years to R&D a new series of iUnit Packaged Smart Condensing Unit-Cooler set in market, applying independent developed smart CDU Controller, advanced fuzzy controlled EXV module, intelligent hot-gas defrost on demand, condenser fan speed control. Low temperature Packaged CDU Set suitable for coldroom temperature from +5~-30℃; Mid-temperature packaged CDU Set suitable for coldroom temperature from +10~-18℃. Reliable efficient and environmetal friendly easy to use refrigeration systems.