Scan chain routing efficiency is improved in an integrated circuit such as an application specific integrated circuit by defining flip flop groupings prior to place and route. The device compares the voltage of the output line with a high voltage-side shorting determination value, a low voltage-side shorting determination value and a break determination value to detect a high voltage-side shorting, a low voltage-side shorting and a line break. Each of the management time slots, guaranteed time slots, and asynchronous time slots are assigned to one of the one or more remote devices. The closed circuit comprising a condenser, an evaporator and a fluid expansion device, the closed circuit being filled with a fluid, the fluid expansion device having a nominal expansion capacity and being positioned between the evaporator and the condenser, the hermetic compressor promoting a fluid flow inside the closed circuit, the closed circuit having a circuit nominal flow rate capacity.