BSM is a dual-circuit or triple-circuit chiller charged with R134a gas. It has axial fans to ensure the quietest possible machine operation, twin-screw compressors, a shell and tube exchanger and “V block” microchannel coils. The unit with several refrigerant circuits is designed to provide the maximum yield when fully charged but also guaranteeing excellent efficiency even with partial charging and ensuring continuity if one circuit or more stops operating. The machine cools water to supply the distribution system that is usually connected to fan coil type terminals. In addition, BSM can also produce domestic hot water if it is fitted with a desuperheater or total recovery system, so it is ideal for residential, commercial, or industrial applications.