For a chiller without condenser, as you name it, you need a condenser to operate. With these chillers, the evaporator, expansion valve, and compressor are housed inside the building’s heavily noise-protected engine room, and the condenser is located outside the building, usually on the roof. The condenser fans alone are significantly quieter than the compressor. The two parts are connected by a pair of copper pipes in which the heat transferring refrigerant gas flows. However, in terms of function and assembly, it is identical to a compact outdoor chiller. Its application is limited by the physical distance between the chiller and the condenser (max. About 50 meters).