20% anti freezing water circulated in chiller systems are evaporator coils. When there is no need for cooling or heating, by-pass select models, system fluid is directly passed through the battery without circulating. Because of the speed of the fan motors on them, maximum silence can be achieved.

The system fluid, which is carried by insulated water hoses, passes over the battery and performs heat transfer. Stainless chassis has drainage lines and surface water from moisture is discharged from both sides of the ceiling. With only a fan motor and battery, these units provide maximum silence in the environment without compressor noise.