Evaporator – This is where the chilled water is made and the heat from the warm return “chilled water” is extracted, to become sent towards the condenser. Chillers interesting air or water by transferring warmth from one location to another. They try this by sending refrigerant through evaporator heat exchangers https://medium.com/@richard.newsome2/chiller-hire-from-newsome-reliable-cooling-for-every-industry-b361a44bd5f4