Patent ID: 7270278

Claim:
A commercial refrigeration system suitable for use in a supermarket, the commercial refrigeration system comprising: a compressor, a condenser, a valve, a first evaporator coil, and a second evaporator coil, all of which are in fluid communication; a first merchandiser adapted to be cooled by the first evaporator coil; a second merchandiser adapted to be cooled by the second evaporator coil; a system controller operable to control operation of the refrigeration system; a subsystem controller in communication with the system controller, the subsystem controller being operable to monitor at least one parameter of a subsystem having at least one of, but not all of, the compressor, condenser, valve, and first merchandiser, and being further operable to communicate information relating to the monitored parameter to the system controller and to execute a command from the system controller to affect the operation of the subsystem; and wherein at least one of the compressor and condenser is located remotely from the first merchandiser and the second merchandiser.