Multi-position valve actuators

Abstract

Detailed are actuators especially useful in connection with valves forming parts of water-recirculation systems of pools or spas. Transit times of components of the actuators may be measured or otherwise determined and signals sent to the actuators to cease movement of the components between boundary positions. Consequently, dynamic adjustment of the valving capabilities of the systems may be achieved.

Claims

1. A method of deploying a valve actuator forming part of a water-recirculation system of a pool or spa, comprising: a. communicatively coupling the valve actuator to an electronic controller; b. thereafter determining transit time, between first and second positions, of a component of the valve actuator, the first and second positions defining maximum transit boundaries of the component during operation; and c. thereafter communicating from. the electronic controller to the component so as to stop transit of the component before elapse of the transit time and thereby permit corresponding water flow through the valve for circulation in the water-recirculation system of the pool or spa.

2. A method according to claim 1 further comprising connecting the electronic controller to a power center controller.

Description

BRIEF DESCRIPTION OF THE DRAWING

(1) The FIGURE is a schematic representation of a system consistent with the present invention.

DESCRIPTION OF THE INVENTION

(2) Need thus exists for multi-position actuators of low cost and less complexity than current offerings. Such actuators may be obtained by coupling a JVA to an electronic controller able to measure transit time of the JVA from the first position to the second position. If the first and second positions are selected to be maximum (hard limit) travel boundaries of the cams, transit time may be calibrated to the change in position between the boundaries. Hence, the controller may stop the JVA at any position between the boundaries by measuring the elapsed travel time and signaling cessation of movement at the appropriate time.

(3) The Jandy AquaLink device, a pool digital assistant (PDA) or other device may function as the electronic controller. Portions of the control may be embedded in firmware on a printed circuit board (PCB) or otherwise if desired. The actuators thus may be easy to install and backwards compatible for purposes of retrofitting existing equipment. The actuators additionally may be modular if desired, in that an installer may install as many PCBs as needed to control the number of JVAs available. In some versions of the invention each JVA will have a dedicated PCB, although a 1:1 correspondence between JVAs and PCBs is neither necessary nor always necessarily desirable.

(4) Illustrated in the attached FIGURE (entitled Smart JVA Power Connections) is a schematic representation of a system 10 including a multi-position JVA 14. Shown as electrically connected to actuator 14 is controller 18, which may be or include a firmware-containing PCB. Also shown is power center controller 22 to which controller 18 optionally connects as well as supply 26 powering either or both of controllers 18 and 22. Although connections in the FIGURE are shown as wired, any or all of the connections (excluding power connections) may be wireless instead.

(5) The foregoing is provided for purposes of illustrating, explaining, and describing embodiments of the present invention. Modifications and adaptations to these embodiments will be apparent to those skilled in the art and may be made without departing from the scope or spirit of the invention.