Why do unit air coolers frost? What are the methods of defrosting? As an important component of the cold storage refrigeration system, when the unit air cooler operates at temperatures below 0°C and below the dew point of the air, frost starts to form on the surface of the evaporator, and the frost

A glycol unit cooler is a type of evaporator designed for low-temperature freezers, typically used in industrial refrigeration, cold storage, and commercial freezer applications. These coolers use a glycol-water mixture (usually propylene or ethylene glycol) as a secondary refrigerant to maintain lo