air cooler (efficient and new type ) (efficient & new type)

This series coolers divided three different ranges of HFD, MFD and LFD according different applied Temperature . HFD series suitable for keeping fresh Cold rooms for ?/5℃; MFD for frozen room for ?5/ -18℃and LFD for Rapid Freezing Cold Room for lower -25℃
Production as followed:
● Coils: Φ9.52 or Φ16 copper tube and aluminum, fin spacing 4.5mm(DL), 6mm(DD), 9mm(DJ);
● Casing: prepainted embossed Aluminum board;
● Defrost: defrosting by electric heater
● Motor: external rotor motor with low noise ;
● Testing of Pressure and leaking :by 28 bar with dry air and charged 1bar Nitrogen in the Inner tube;
● Refrigerant: can used R22,R134a and R404A;