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Thread: solar controlled ball valve

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    solar controlled ball valve

    I have a solar heater, but I am forever chasing the sun.
    Anyone know of a reliably manufactured solar activated ball valve?
    34k Gunite IGP, 8person attach spa, 4cart filter, 40k btu heater, , SWG, 3m marbelite finish, 12 panel fafco solar heater

  2. Back To Top    #2

    Join Date
    Jun 2007
    Location
    SF Bay Area
    Posts
    441
    brakes,

    I'm a little confused by your question. Do you mean that you are presently operating you solar system by manually turning it on and off? If you are asking about how to make the solar system automatic, here are some thoughts.

    Most automatic solar systems use a 3-way valve that has a motor (valve actuator) attached to it, similar to the picture below.
    valve actuator http://www.poolplaza.com/pool-school/pl ... tors.shtml
    3-way Jandy valve http://www.poolplaza.com/pool-school/pl ... port.shtml

    Then there is some kind of controller that either is based on time-of-day or based on the relative difference between the solar panel temperature and the pool temperature. The latter uses temperature sensors to measure the pool temperature and the solar panel temperature. If the solar panel temperature is x number of degrees hotter than the pool temperature, then the controller tells the Jandy 3-way valve to turn to "solar heating" mode.

    Here is some additional information on solar heating: http://www.coseia.org/SolarPoolHeating.html

    I hope this helps. Please ask more questions if anything was not clear or confusing.

    Titanium
    24,000 gallon inground freeform pool/spa circa 1983 (113 ft perimeter, 625 sq ft) with 350 gallon attached spill-over spa
    2007 2 HP, three-phase Hayward TriStar pump which is powered by an Ikeric VS-200 variable speed drive system
    1983 Laars XE Pool/Spa Heater Type ES 400,000 BTU, 1998 Hayward Super Star-Clear C-4000 cartridge filter (400 sq ft, 4 separate cartridges)
    1998 Polaris 380 pressure-side cleaner w/ 3/4 HP booster pump
    One skimmer :( and one PoolSkim :), One Supervision Galaxy LED pool lamp, Second story solar panels
    Hayward/GoldLine AquaLogic PS4 (replaced 1983 vintage dual circuit Intermatic timer)

  3. Back To Top    #3
    Quote Originally Posted by Titanium
    I'm a little confused by your question. Do you mean that you are presently operating you solar system by manually turning it on and off? If you are asking about how to make the solar system automatic, here are some thoughts.
    Yes! me too, very confused after reading what i wrote... here is a picture of the valving, the idea i have is to find a valve that when the sun is out its open, when there is no sun, it isolates itself from the panels (off), i would probably need to repipe it so that the master valve is inline as the panel inlet...?

    valve pic
    34k Gunite IGP, 8person attach spa, 4cart filter, 40k btu heater, , SWG, 3m marbelite finish, 12 panel fafco solar heater

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    Join Date
    Jun 2007
    Location
    SF Bay Area
    Posts
    441
    brakes,

    the idea i have is to find a valve that when the sun is out its open, when there is no sun, it isolates itself from the panels (off)
    Thanks for the picture of your installation. Pictures are always good.

    You will want to add the 3-way Jandy valve (mentioned in my previous post) in the pipe just below where the left-most valve is shown in your picture. You will install pipe in the third hole of the Jandy valve (this third hole should be pointing to the right) and run this pipe all the way until it hits the pipe just below the rightmost valve in your picture. You would then connect your new pipe to your old pipe via a T-connection coupling.

    You would then attach a valve actuator to the Jandy 3-way valve. If you don't already have a pool automation system, then a simple way of controlling your new Jandy 3-way valve and valve actuator is by a solar controller.
    http://www.bestbuypoolsupply.com/solarc ... zmap=NS950

    The link above also shows the Jandy 3-way valve (usually $50-$80), valve actuator (usually $85-$110), and two temperature sensors, in addition to the solar controller.

    Here is some great reading and some great animations of what I am trying to describe above. http://www.powermat.com/PG5ht.html

    I do not know of a valve that "knows" when the sun is out or not by itself. This functionality usually takes the three separate pieces (3-way valve, valve actuator, solar controller) discussed above.

    I know this was not the answer you were hoping for. Feel free to ask more questions.

    Titanium
    24,000 gallon inground freeform pool/spa circa 1983 (113 ft perimeter, 625 sq ft) with 350 gallon attached spill-over spa
    2007 2 HP, three-phase Hayward TriStar pump which is powered by an Ikeric VS-200 variable speed drive system
    1983 Laars XE Pool/Spa Heater Type ES 400,000 BTU, 1998 Hayward Super Star-Clear C-4000 cartridge filter (400 sq ft, 4 separate cartridges)
    1998 Polaris 380 pressure-side cleaner w/ 3/4 HP booster pump
    One skimmer :( and one PoolSkim :), One Supervision Galaxy LED pool lamp, Second story solar panels
    Hayward/GoldLine AquaLogic PS4 (replaced 1983 vintage dual circuit Intermatic timer)

  5. Back To Top    #5

    Join Date
    Jul 2007
    Location
    Alamo, CA
    Posts
    187
    That is the solar controller I have and it's great. I just set it and forget it and my pool stays the right temperature. As Titanium described, there is a temperature sensor near the panels on the roof and one in the plumbing right after the main pump. If the water temperature is below the thermostat's setting and the roof is at least a few degrees warmer than the water, it opens the valve to the solar. As soon as either the heat is no longer needed or the roof is too cool, it bypasses the solar.
    blubluenoiseise

    My pool: 14,750 gallons in-ground plaster
    FAFCO Solar panels (seven 4' x 12') with a Goldline automatic controller
    1/2 HP WhisperFlo filter pump, Kreepy Krauly cleaner, Cartridge Filter
    Aquarite SWG, Satisfied user of the TF-100 Test Kit

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