A Change Over Unit forms an important part of a central medical gas supply system where two separate gas sources are available. It provides a structured arrangement for managing the transition from one source to another according to the system configuration.
The unit is commonly incorporated into medical gas pipeline installations to help manage primary and reserve supply sources. Its control arrangement allows trained personnel to monitor the available supply and perform the required changeover operation. The exact gas type, pressure range, connection arrangement, and control method depend on the configuration selected for the healthcare facility.