Patent ID: 11921008
Assignee: nan
Field: Measurement (Instruments)
Classification: CPC G | IPC F  G

Claim 14:
15. A method of testing a leak detection feature of a normally closed water supply control system that uses a normally closed electrically actuated valve and a pressure sensor downstream of said valve, the method comprising:
causing an electronic control module to monitor a system pressure of a main water supply;
in response to a pressure reading above an upper threshold pressure, monitoring elapsed time and causing an auxiliary valve to open to divert water from the main water supply, downstream of the normally closed electrically actuated valve, through an orifice, thereby causing a decrease in system pressure;
monitoring for fault condition occurrences mimicking water leaks from the main water supply; and
performing a step selected from the group consisting of:
in response to detection of a pre-set number of fault condition occurrences within a pre-set time limit, causing the auxiliary valve to close and indicating that the leak detection feature of the control system is functioning properly; and
in response to the pre-set time limit expiring in the absence of detection of the pre-set number of fault condition occurrences, causing the auxiliary valve to close and indicating that the leak detection feature of the control system is not functioning properly due to a fault in the control system.