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Thread: Solar controller with high/low relay option for 2 speed motor

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    bobodaclown's Avatar
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    Apr 2011
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    Murrieta, CA
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    Solar controller with high/low relay option for 2 speed motor

    Hello All,
    Is there a stock solar controller that offers a 2-speed relay for high/low pump operations. When solar is called for motor switches to high, no solar, low speed.

    Doing some ground work, thinking about adding solar.
    Murrieta, CA. 15K (Est) pool/spa. Hayward Tristar SP3220EE 2.70HP pump, Hayward Swimclear Cartridge filter C4025 425sqft (PA106), Pentair Mastertemp 400 heater. TF-100/Speedstir

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    JasonLion's Avatar
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    May 2007
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    Silver Spring, MD
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    Re: Solar controller with high/low relay option for 2 speed motor

    Many of the automation systems will do that, but I haven't seen a dedicated solar controller that does. Several of the solar controllers could be easily modified, just replace the SPST relay with a SPDT relay. But that does require locating a compatible relay.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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    Mod Squad jblizzle's Avatar
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    Re: Solar controller with high/low relay option for 2 speed motor

    The SolarTouch can have a dual speed relay added ... although a little more than a basic solar controller, but less than the full automation systems.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
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