Automatic bath temperature and level control

Abstract

A wall mounted electronic control system is used to control user defined temperature setpoints to regulate bath or shower water temperatures and tub levels where desired. The user will use a keypad to enter the desired temperature using the temperature setpoint adjust buttons ( 11 ) and initiate the start sequence on the control unit ( 10 ). The control unit ( 10 ) will output a signal to open the motorized water control valves ( 12 ). The thermocouple ( 14 ) will send an input signal to the control unit ( 10 ) where the unit will compare the input and output signal to generated an adjusted output to throttle the motorized water control valves ( 12 ) until the desired temperature setpoint is reached. The automatic drain valve ( 13 ) will close if the “Bath” mode is selected until the desired water level triggers the water level sensor ( 16 ), which will then close the motorized water control valves ( 12 ). An audible signal will then be generated by the control unit alerting the user that the bath is ready. If the “Shower” mode is selected the audible alarm will alert the user when the desired water temperature setpoint is reached.

1 . A method for controlling and regulating water temperature and maximum fill level within an electronic control process comprising: 
 (a) providing a programmed electronic control unit for processing system inputs and outputs,    (b) providing automatic or manual means to modify the position of water valve(s) thus controlling water flow to reach desired water temperature setpoint,    (c) providing a memory controller which will: 
 (1) direct means for entering and viewing desired water temperature setpoint, and  
 (2) direct means to observe actual water temperature, and  
 (3) means to initiate start or stop of water temperature and water levels.