Less common is an open loop controlled industrial cooler in an open tank or oil pan where it continuously circulates the temperature of the liquid. The liquid comes from the tank, passes through the pump unit, and returns to the tank. An adjustable thermostatic sensory makeup liquid temperature circulates the cooler to maintain a constant temperature of the tank.

Air cooled industrial water chillers are generally integral units, combined with evaporators, compressors, and condensers. For slightly high-power air-cooled industrial water chillers, it is necessary to consider the heat dissipation problem of the condenser cooling fan during its operation. In the application of air conditioning plants, the overall unit needs to be equipped with exhaust ducts to guide the heat blown out by the cooling fan to the outside.