After charging, the equipment is transferred into a leak detection system. The chamber is evacuated to a pressure typically <0.1 mbar and a leak detector is used to sniff for leaking refrigerants. If the circuit is within the specification, it is transferred to the assembly line, if not, it goes to the repair station. The evacuation of the leak detection chamber must be done in seconds. Depending on chamber dimensions, Leybold can size a suitable vacuum system.