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Thread: Hayward Tristar VS and reported energy consumption

  1. Back To Top    #1

    Join Date
    Feb 2016

    Hayward Tristar VS and reported energy consumption

    I have a Tristar VS pump that I installed a couple of weeks ago and have a TED (The Energy Detective Electricity Monitor) which monitors energy usage on a per circuit basis. I have the pump set to 1350rpm and it is saying that it is using 115w. The pump is wired up as 240v as that is the only option. The TED is measuring the circuit as 291 watts. Because of this large discrepancy, I bought a Fluke 373 clamp meter to measure the amps and to also calibrate the TED units. I got a reading of 0.8 and 0.9 amps for each leg of the 120v. The TED is measuring the line voltage at 128v, so that would mean I have 102.4w and 115.2w for a total of 217.6w. It looks as though the pump is only reporting energy consumption on one of the two legs. So it is essentially using twice the amount of energy it says it's using.

    Has anyone else seen this?
    15k Gallon Gunite - Hayward Tristan VS, Hayward DE4820 Filter with Perlite, Hayward AquaRite SWG T-3
    Dolphin Active 30i

  2. Back To Top    #2
    Mod Squad Jimrahbe's Avatar
    Join Date
    Jul 2014
    Bedford, TX

    Re: Hayward Tristar VS and reported energy consumption

    I know nothing about your Tristar vs pump, but for reference my Intelliflo, running at 1400 RPM, shows 241 watts, which is about halfway between the TED readings and your calculated values.

    Jim R.
    Finished in 2015 - 17K Gal, IG, 20' x 25' Almost Rectangular Pool, Pebble finish, three rockport water falls. Pentair Equipment: EasyTouch 4, IC40 SWG, 3 HP VS Pump, CCP520 Cartridge Filter.
    TF100 with SpeedStir and SampleSizer, ColorQ Pro 7, Dolphin Premier Robot Cleaner, added Screen Logic 2, added small 3 person Caldera Spa.

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