Water-cooled Precision Air Conditioner is one of the four main types of Precision cooling system including free cooling, air-cooled, chilled-water and water-cooled PACs. It is a ideal precision cooling solution for an area with low degree of humidity. The drier the area is, the higher efficiency it gets. Low humidity and dry environments give a big stage for water-cooled cooling systems like CRACs and HVACs.
However, humidity can also be a barrier for water-cooled precison air conditionings which might make it difficult to choose a suitable models of it. In this article, we are going to talk about why it can complicate your selections and give you some suggestions help you make right decisions.
How and Where Does the water-cooled PACs works ?
Let’s start with a simple introduction of the structure in a common water-cooled precision cooling system. It typical contains two main parts: a indoor unit (similar to air-cooled precision cooling system) and a outdoor unit which is exactly a cooling tower.
Indoor Unit
The indoor units of water-cooled PACs are similar to those of air-cooled PACs, typically consisting of a compressor, evaporator, EC/AC fan, humidifier, air filter, and control system. A key difference is that a plate heat exchanger is integrated into the indoor unit of water-cooled precision cooling system. Within this device, the external water circulation line and the internal refrigerant circulation pipe efficiently exchange heat: the refrigerant releases the indoor heat it has absorbed, and the water absorbs this heat, transferring it to the outdoor unit.
Outdoor Unit
Lower humidity help water evaporate better and water evaporation bring away heat from its surrounding environments.
