An absorption system, when installed outside of a building shall be located at least 20 feet from an exit door, window or ventilating air inlet in a building if it contains over ______ of Group A3 refrigerant.

An absorption system, when installed outside of a building shall be located at least 20 feet from an exit door, window or ventilating air inlet in a building if it contains over ______ of Group A3 refrigerant.