All immersion chillers from HYFRA consist of a hood section in the upper area and an immersion section in the lower half. Only the immersion part with the evaporator is inserted into the oil. Depending on the model, the oil chillers have an immersion depth of 50 cm to 66 cm (20 inches to 26 inches) for powers from 5 kW to 80 kW (1.5 tons to 22.5 tons). For proper cooling, the liquid must have a minimum level. The level depends on the size of the cooler. More Information