Control system
First Claim
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1. A system for cyclical control of a water characteristic in a body of water without a sensor comprising:
- a time-based cyclic controller responsive to a display, said cyclic controller having a fixed time period during which the cyclic controller repeatedly generates a duty cycle as a portion of a cyclic output signal having a first signal and a second signal with the first signal different than the second signal;
a display switch for an operator to manually set the duty cycle wherein said duty cycle is maintained until manually reset by the operator, said display switch comprising a manual operator control wherein the cyclic controller is integrated to a spa control system with the cyclic controller responsive to the manual operator control in a spa display pad; and
a valve responsive to the first signal and the second signal to periodically deliver a water characteristic affecting material into a body of water in response to the duty cycle to thereby either maintain or change the water characteristic of the body of water.
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Abstract
An apparatus and method for controlling a water characteristic of a body of water by controlling the cyclic release of a water characteristic material into the body of water with or without the system being responsive to a level of the water characteristic in the body of water with the system capable of being controlled from a display or from a wireless control module or both.
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Citations
12 Claims
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1. A system for cyclical control of a water characteristic in a body of water without a sensor comprising:
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a time-based cyclic controller responsive to a display, said cyclic controller having a fixed time period during which the cyclic controller repeatedly generates a duty cycle as a portion of a cyclic output signal having a first signal and a second signal with the first signal different than the second signal; a display switch for an operator to manually set the duty cycle wherein said duty cycle is maintained until manually reset by the operator, said display switch comprising a manual operator control wherein the cyclic controller is integrated to a spa control system with the cyclic controller responsive to the manual operator control in a spa display pad; and a valve responsive to the first signal and the second signal to periodically deliver a water characteristic affecting material into a body of water in response to the duty cycle to thereby either maintain or change the water characteristic of the body of water. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification