s invention relates generally to

This invention relates generally to solar heating systems for swimming pools and the like, and is concerned more particularly with a control valve for such a system. Rod 58 is adapted to be longitudinally displaced within valve body 48 to operate the valve by a reversible electric motor 60 mounted on the outer end of a housing 62 at the end of valve casing 48 remote from the drain-down chamber 56. Spring Check Valve - PVC 1/2" FPT, Free Shipping, Jandy 3-Way Valve and Actuator for automatic solar or pool control *Out of Stock*, Goldline / Hayward 3-Way Valve and Actuator for automatic solar or pool control.

Automatically maximizes solar heat collection by actuating a 24V valve when there is solar heat available, Single-setting, precision temperature adjustment, Automatic switching (selectable) from solar pool heating to cooling, Easy-to-read LED indicators showing system status, Freeze protection option if temperature nears 32F, Microprocessor-based electronics for accuracy and reliability, Installer-programmable features for system adaptability, from Check valve means is associated with the return chamber inlet and is adapted to prevent reverse flow of liquid in the inlet. For complete terms visit afterpay.com/terms, Following in the steps of the popular multi solar controller comes the MS3D-V, a solar controller with all the features and bene. A secondary valve member is provided in association with the drain-down chamber 56 and is operable simultaneously with the primary valve member 94 to close the inlet 90 to the drain-down chamber when the primary valve member is in its second position, and to open the inlet when the primary valve member is in its first position. A collar 74 surrounds outlet 72 for connection to a suitable coupling pipe by solvent welding. 1) will flow through the first outlet 68 of chamber 50 and into the flow chamber 52. Please try again. The outlets are defined by transverse annular wall portions extending inwardly from said valve body. A control valve for a solar heating system is disclosed. ASSIGNMENT OF ASSIGNORS INTEREST. Valve body 48 has a generally cylindrical overall shape and extends about a longitudinal axis represented in FIG. A valve as claimed in claim 9, wherein said adjustable means comprises a fork member supported below said valve element for axial sliding movement towards and away from said seat and adapted to support said valve element from below, an actuating element turnably mounted in a wall of said valve body and operable from externally of the body, and screw threaded means coupling said actuating element with said fork so that axial movement of the fork is produced by turning the actuating element. SANITARY FAUCET WITH PRESSURE NEUTRAL CERAMIC ELEMENTS, DRIVEN BY STEP MOTORS IN COMBINATION WITH MECHANICAL FRAMEWORKS AND CONTROLLED BY A LIQUID-TIGHT GLASS TEMPERATURE SENSOR UNIT. A great way to automate your solar pool heating! sliding closure elements, Multiple-way valves, e.g. 3. When the temperature cools towards the end of the day, the controller will automatically turn the valve back so the water will stop running through the, Eyeball return Jet for Concrete pools - Self aligning - Various Colours, Onga Pantera / Leisuretime pump barrel union, Sta-Rite Sand Filter union with sight glass, Poolstore Safety Suction Push In Slip fit. Enjoy automatic maximization of solar heat collection and reliable, accurate performance. If you use a manual valve to divert the water to your Enersol Pool Panels, you will need to close/open it every time temperature changes. It will be appreciated from the foregoing that the control valve provided by the invention can be easily installed to the other components of the solar heating system and does not require secondary plumbing or hydraulic operating connections to other parts of the system. Drain-down chamber inlet 90 would be closed at this time and the water will therefore flow from chamber 52 into the flow line 22 to the solar collectors. A CORP. OF CANADA;REEL/FRAME:005858/0530, Valve assembly for solar heating and use for heating a swimming pool, Temperature control mechanism for photothermal conversion glass tube of solar water heater, Medium transmission hydraulic combination linkage valve. 12. However, this control circuit forms no part of the present invention and will not therefore be described in detail. training events, warranty Hayward GLC-2P-A Solar Pool Heating Control System with 3-Way Valve, Actuator and 2 PC Sensors, Solar pool heating control system comes with 2 by 2-1/2-inch 3-way valve, actuator and 2 PC sensors, Automatically maximizes solar heat collection by actuating a 24V valve when there is solar heat available, Includes LED indicators that shows status of system operations, This system provides recirculation freeze protection and installer-programmable features for any-system adaptability, Quick, accurate, easy-to-set desired temperature controls. BIO-ENERGY SYSTEMS, INC. A CORPORATION OF NEW YO, Free format text: Reference will now be made to FIG.

A disadvantage of systems which incorporate hydraulic valves is that secondary hydraulic connections are required for operating the valves themselves. It is easy to read, understand and operate. After viewing product detail pages, look here to find an easy way to navigate back to pages you are interested in. Motor 60 incorporates a speed reduction gear box 114 disposed externally of the motor support casing 62 and having an output shaft 116 which extends into the casing. 5 and 6. Clean, Clear & Sanitized Pool Water with Doheny's!

Very happy with my heater and would recommend it to anybody. 1 by way of the line 46 indicated in that view. Finally, it should be noted that the proceeding description relates to particular embodiments of the invention only and that many modifications are possible within the broad scope of the invention. 4 and is denoted 140. Very easy to install and works flawlessly. Hayward websites have been developed in compliance with standards for Internet Explorer 10 or later. All prices are in Canadian Dollars. Also works with a saltwater chlorinator. 5 is a sectional view on line V--V of FIG. You plug the controller into the chlorinator, then the pump plugs into the piggy back. The drain-down chamber has an inlet for receiving liquid drained from the collector, and an outlet through which drained liquid can be returned to the reservoir. This adjustment is effected by the mechanism shown in FIGS. 1) will allow air to enter the solar collectors at this time so that the water can drain freely. Fork 160 includes two cross members 166 and 168, the lower one of which has a screw threaded opening receiving a complimentarily externally screw threaded member 170 which is turnably mounted in the bottom wall of valve body 48 and which has a squared portion 172 at its lower end received in a square opening in the knob 162. (Caution this method may void the warranty on the Crystal Clear Pump). Automatically use the sun's energy instead of the power company's. 8. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit, Multiple-way valves, e.g. When purchasing, tap the edit cart link to see what freight you pay. Once the comfort temperature is set the MS3D-V is left to itself to calculate energy efficient solar pool heating diverting the water via the automatic three way valve to the roof. The mechanism includes a fork shaped member 160 which is vertically adjustable by means of an adjusting knob 162 disposed externally of and below the valve body 48. The wall is indicated at 100 and is formed with an integral cylindrical sleeve 102 which defines outlet 92. Everything you need to close your pool for winter, FREE Shipping on orders over $25 shipped by Amazon, Upgrade Pool and Spa Projects with the PE24VA Valve Actuator. Yet, partially sunny or rainy days are a challenge. The collectors are individually designated 26 and are connected together side by side in conventional fashion. U.S. Pat.

Vacuum breaker 28 (FIG. PATENTED CASE, Owner name: I live in Ohio and my pool water was 89* by the 1st of June. with UV, Ozone and Hydroxyl Radicals. Unfortunately, I may have to change the pipe going to the roof and feeding the solar pipes as the flow coming back down into the pool is very light. ;ASSIGNOR:DELOITTE & TOUCHE INC., RECEIVER AND MANAGER OF SUNGLO SOLARLTD. Je les utilise depuis plus de 10 ans aucun dfaut a date. A valve as claimed in claim 1, wherein said check valve means associated with said return chamber inlet comprises a valve element and a corresponding valve seat in said inlet, said valve element being freely movable between a closed position in which it co-operates with said seat, and a position in which it is spaced from the seat to define an annular opening for liquid entering said inlet, and wherein the check valve means further comprises means adjustable from externally of the valve body and adapted to define the maximum spacing of the valve element from said seat. The collectors are connected in the circuit downstream of the filter and heated water is returned to the pool directly from the collectors. The inlet of the drain-down chamber communicates with the flow chamber. 2).

have a good understanding of directions before starting, Reviewed in the United States on April 28, 2022. directions fairly simple to follow. The solar control systemis the smart, easy, efficient way to go solar. 2 and is in fact formed by a separate moulding 48a which is solvent welded to the moulding which defines the other three chambers and which forms part of the valve body.

sliding closure elements with linearly sliding closure members, SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS, Solar heat collectors specially adapted for particular uses or environments, Solar heat collectors specially adapted for particular uses or environments for swimming pools, GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS, TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE, REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION, Energy generation through renewable energy sources, TECHNICAL SUBJECTS COVERED BY FORMER USPC, TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION, Direct response valves [i.e., check valve type], Dividing into parallel flow paths with recombining, SUNGLO SOLAR LTD. 1081 ALNESS ST. DOWNSVIEW,ONTARI, ASSIGNMENT OF ASSIGNORS INTEREST. One of these sealing surfaces is indicated at 136 and is defined around an inner face of the annular internal wall which defines the first outlet 68 of chamber 50. Did you know that you are still able to draw heat from your roof with the Enersol Pool Heaters 3 or 4 hours after the sun has left? Your session is about to timeout due to inactivity. AquaSolar Time Clock is our premium solar controller. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. AquaSolar GL-235 also includes a nocturnal cooling option.

please update your current version of Internet Explorer or try using a different browser. The directions tell you to drill a small hole and use a hose clamp to seal the temp sensor o-ring to the pvc pipe. However, in the event that water accumulates in chamber 56, the float will be lifted, causing the valve member 110 to move away from opening 92 and allow the suction effect of the pump to remove the water from chamber 56. service center location, advanced 3,906,928 (Wright) discloses a system of this type in which hydraulically operated pinch valves are used to divert water through the solar collectors at appropriate times. The valve body defines four internal chambers, namely a valve chamber 50, flow and return chambers 52 and 54 respectively and a drain-down chamber 56.

Profile, Create a Pool 1). V&A-2P & V&A-1P, Jandy 3-Way Actuator for automatic solar or pool control JVA2444 SKU 4424 *NIB 2018 Old Stock - 1 Left*, Pentair Valve Actuator for automatic solar or pool control. ts of the multi solar yet with a motorised valve to automatically divert the water to the roof. After having passed through the collectors, the water will return through the inlet 76 of return chamber 54 and will pass into the pool return line 32 through return chamber outlet 88. You can only compare 4 products at a time. ;ASSIGNOR:STEWART JOHN M.;REEL/FRAME:003835/0252, Free format text:

on an intermittently cloudy day) so that heat from the pool is actually lost to ambient air during these periods. Rod 58 moves axially through a housing 126 on end wall 118 which contains a seal (not shown) to guard against leakage of water from the return chamber 54 into casing 62.

Reviewed in the United States on June 18, 2018.

Hayward GLC-1P-A Solar Pool Heating Control System, Hayward AquaSolar GL-235 Controller (Controller only), Hayward Valve Actuator GVA-24 - 180 Deg Rotation, Roof Sensor, 10K Ohm - Roof temperature sensor for Automatic Pool Controller, Water Sensor, 10K Ohm - Pool Temperature sensor for Automatic Pool Controller, Hayward PSV PVC 3-Way Manual Valve (1.5" and 2" Ports), White PVC Ball Valve with Union - 1.5" Slip to Slip, PVC Check Valve - 1.5" Slip to Slip, Schedule 40, White, Ball Valve with Union - White 2" Slip to Slip, White PVC Check Valve - 2" Slip to Slip, Schedule 40. Profile, Create a Pool Owner The rod itself cannot turn because its squared outer end portion 96 is received in the square opening which represents the inlet to the drain-down chamber 56.

Wiring is fairly easy, however setting the limits on the valve adjustment takes some practice. Go Green with a little help from the sun. The crank is pivoted to the end wall of chamber 56 at a pivot point 112 intermediate its arms. Otherwise, you may be cooling your pool instead of heating it during a partially sunny day. With an auto control system, partially sunny or rainy days are no longer a problem. In this connection, it will be noted that the casing 62 is open at the bottom so that any liquid which might leak into the casing can drain freely away. The limbs of fork 160 extend upwardly through openings in the guide element 164 and bear against the underside of valve element 148. However, in this case, a fitment 80 is solvent welded to collar 78 for the purpose of retaining a check valve 82 (see later) disposed within inlet 76. 4.

Includes LED indicators that shows status of system operations.

Please remove additional products. Hayward offers a complete selection of solar controllers that help maintain the perfect water temperature without using your heater.

6. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. Motor 60 is a d.c. motor and the switches 128 and 130 are connected to a polarity-reversing power supply circuit to the motor (not shown) designed to stop the motor when one of the switches is energized and then reverse the polarity of the supply to the motor the next time it is operated. The water in chamber 52 will accordingly be able to flow through recess 98 and into the drain-down chamber. IE9 and older versions are not supported.

According to another aspect of the invention, there is provided a solar heating system incorporated such a control member.

9. Systems of this kind typically comprise an array of solar collectors connected in what is essentially a conventional pool water filtration circuit. The flow and return chambers communicate respectively with the first and second valve chamber outlets and the flow chamber has an outlet adapted to be coupled to the solar collector flow line for delivering liquid to the collector. A CORP. OF CANADA, data:image/svg+xml;base64,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, data:image/svg+xml;base64,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, MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING, ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL, VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING, Multiple-way valves, e.g. A valve as claimed in claim 1, wherein said valve body is of generally elongate shape extending about a longitudinal axis and wherein said chambers defined by the body are disposed in line with one another and spaced along said axis with said return chamber and flow chamber on respectively opposite sides of said valve chamber and said drain-down chamber at an end of the valve body adjacent said flow chamber. In practice, the power supply circuit to motor 60 will be a relatively sophisticated automatic control circuit including temperature sensors for automatically operating valve 44 in accordance with temperature conditions prevalent in the system and with ambient temperatures. A valve as claimed in claim 5, wherein said secondary valve member comprises a squared end portion of said valve operating rod projecting through and closely fitted into a complimentary square opening in a transverse wall in said body between said flow chamber and said drain-down chamber, said opening defining said drain-down chamber inlet, and a recess formed in said squared end portion of said rod at a position such that the recess is disposed in said drain-down chamber inlet when said rod is in an axial position corresponding to said first position of said valve member. FIG. Member 94 is integrally mounted on the valve operating rod 58 so that longitudinal displacement of this rod will cause the valve member to move between its two positions as will be described. It is sufficient to note that each collector will have upper and lower headers and a collector panel extending between the headers and having a plurality of fluid flow passageways providing communication between the headers. Chamber 56 has an inlet 90 for receiving water drained from the collectors (see later) and an outlet 92 through which drained water can be returned to the pool as will be described. Further, when the valve is in use, heat loss through the solar collectors of the system due to thermal syphoning is avoided because the collectors will automatically drain down in the event that the valve is operated to cause the water to bypass the collectors. At this time, the recess allows communication between the flow chamber 52 and drain-down chamber 56. A still further problem with some prior art systems having a collector bypass facility is that it is possible for the collectors to be subjected to excessively high water pressures, with consequent risk of structural damage to the collectors. Reviewed in the United States on April 16, 2021, This works as it should, I installed in early spring and the freeze protection works great. The opening itself is shown at 88 in FIG. Enjoy automatic maximization of solar heat collection and reliable, accurate performance. Reviewed in the United States on June 10, 2017. Then when the temperature rises the controller will automatically divert the water to the roof. Not only does this complicate initial installation of the system, but since the valves are operated using water from the swimming pool itself, malfunctions are common due to the presence of debris in the water which tends to clog the narrow hydraulic control lines. In an installation in which the valve 44 is disposed at a level above the pool 30, the water draining into drain-down chamber 56 may be allowed to flow back directly into the pool by gravity. A system as claimed in claim 11, wherein said control valve further comprises float control valve means in said drain-down chamber associated with said chamber outlet and adapted to normally close said outlet but to open the outlet in response to a predetermined level of liquid in said chamber; and wherein the system further comprises a suction line connected to said drain-down chamber outlet and to a suction side of said pump whereby liquid draining into said drain-down chamber can be drawn out of said chamber and into the pump when said float control valve means is open. Products, View Also, while a power operated valve has been described, it will be appreciated that the valve could be arranged to operate manually by simply providing a handle or lever for axially displacing the valve operating rod 58 in place of the motor 60 and associated limit switches. With a dual digital display, customizable features and full system diagnostic LEDs, AquaSolar TC provides the same reliable solar pool heating and control capabilities of the AquaSolar, but also includes an integral time clock for 24-hour control of the pool's main pump and filtration system.

Part 263045, Goldline / Hayward 3-Way Actuator for automatic solar or pool control. Our products include a complete line of technologically advanced pumps, filters, heaters, heat pumps, automatic pool cleaners, lighting, controls and salt chlorine generatorshigh-quality components engineered to work together to keep your pool at its best. Reviewed in the United States on March 31, 2014. If valve member 94 is displaced to close the first outlet 68 of valve chamber 50 (by axially displacing rod 58) incoming water will be diverted from the valve chamber 50 through its outlet 70 and into the return chamber 54. Provision is usually made to bypass the collectors so that the filtration system can be used normally on days when there is insufficient solar energy available for heating purposes. Further, while the preceeding description is directed primarily to solar heating systems for swimming pools, it is to be understood that the invention is not limited in this regard and that the control valve may be used in any liquid-type solar heating system.

Its like using an air conditioner or furnace without a thermostat. A primary valve member denoted 94 is disposed in the valve chamber 50 and is movable between first and second positions in which it closes the first and second valve chamber outlets 68 and 70 respectively. Further, the form of control valve shown in the drawings will positively drain the solar collectors by suction even where the collectors are installed at a level below the level of the valve itself. There, the water is heated to a set temperature and circulated back into the pool or spa. Even if the system is designed to cause the water to bypass the collectors at this time, water remaining in the collectors will cool and will have a chilling effect on the water in the pool when water flow through the collectors is subsequently re-established and the cooled water is returned to the pool. The return chamber has an inlet adapted to be coupled to the solar collector return line and an outlet for returning liquid received from the collector to the reservoir. Our objective is to make your pool experience worry and hassle-free.

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