Flush control

Details Flush control Flush control

E - Fixed Constructions

03

D

E03D 5/10 (2006.01) E03D 1/36 (2006.01)

Patent

CA 2367169

A high flow valve assembly and a low flow valve assembly are in parallel flow relation between an inlet and an outlet of a flush controller. The valve assemblies are opened by solenoid operated pilot valves under the control of a microprocessor based flush control system. A turbine directly measures flow through the low flow valve assembly by providing pulses to the microprocessor, and the control system counts pulses and computes flow through the high flow valve assembly to perform a flushing operation including an initial siphon trap flushing high flow portion and a subsequent trap reseal low flow portion. Corrections are made to the pulse count to correct for partial valve open conditions and other variables. An override switch provides a signal to the control system for a flush operation A user detection system includes a pair of emitters and a pair of detectors defining an array of intersecting detection points in a skewed plane in which the control system can locate the position of a user. The controller can be configured for supplying flush water for either a toilet or a urinal, and for either right or left side water supply entry and the control system detects the unique connections to tailor the operation to the specific configuration.

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