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Thread: Upgrading to a 2 Speed Motor

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    Mr Horsepower's Avatar
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    Upgrading to a 2 Speed Motor

    My single speed Hayward pump motor is overheating and shutting off, so I'm thinking about replacing it with a 2 speed motor. My system uses a Polaris 360 cleaner run off of the same pump. There is a Jandy valve at the pump outlet that splits water off to the cleaner. In this configuration the cleaner runs any time the pump is on. It is my understanding that with a 2 speed pump installed, the cleaner will not run if the pump is switched to low speed. My thought is to install some sort of a timed switch so that when the main timer turns the pump on, it will run on low speed for (x) amount of time and then switch to high speed for maybe the last 2 hours so the cleaner will run. Does this sound right? Any thoughts/suggestions/pictures?


    -Todd
    18K IG Freeform Gunite w/ spill over spa, waterfall, Hayward 1.5 HP Pump, Pac-Fab cartridge filter, Raypak gas heater, Polaris 360. Now BBB thanks to TFP!

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    JasonLion's Avatar
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    Re: Upgrading to a 2 Speed Motor

    Yep, you seem to have a good understanding of the issues.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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    Mr Horsepower's Avatar
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    Re: Upgrading to a 2 Speed Motor

    Any thoughts on what type of timer to use or where to purchase? The motor is currently switched on/off by a mechanical Intermatic timer.


    -Todd
    18K IG Freeform Gunite w/ spill over spa, waterfall, Hayward 1.5 HP Pump, Pac-Fab cartridge filter, Raypak gas heater, Polaris 360. Now BBB thanks to TFP!

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    mas985's Avatar
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    Re: Upgrading to a 2 Speed Motor

    Intermatic T106 will control the speed of the pump. It is a SPDT so it will switch between HS and LS at timed intervals.

    Were you thinking of switching the valve too? That would be a lot more involved.
    Mark
    Hydraulics 101; Pump Ed 101; Pump/Pool Spreadsheets; Pump Run Time Study; DIY Acid Dosing; DIY Cover Roller
    18'x36' 20k plaster, MaxFlo SP2303VSP, Aqualogic PS8 SWCG, 420 sq-ft Cartridge, Solar, 6 jet spa, 1 HP jet pump, 400k BTU NG Heater

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