Poolside Repair: How to install an energy efficient pool pump motor

Poolside Repair: How to install an energy efficient pool pump motor

16 thoughts on “Poolside Repair: How to install an energy efficient pool pump motor

  1. How do you choose the right high-efficiency pool pump replacement motor that’s strong enough to pump water to solar panels on a two story roof.

    1. If you plan to go with a V-Green Variable Speed, it is simple because there are only two options; if your pump’s motor’s total hp is 1.65 or less then you go with the V-Green 1.65, any motors with motors with a 2.7 total hp can use the V-Green 2.7.

      And as a reminder, the way you get the total HP of a motor is by multiplying the listed HP by the Service Factor (SF) on the motor label.

      For Example, a B854 1.5 HP motor: 1.5 HP times the 1.1 Service Factor equals 1.65 total HP. That means you would need the ECM16SQU

  2. Good video. Might consider it when mine goes out. I would have liked to have heard the volume difference between the single speed and the new 2 speed running at both levels. Thanks.

    1. We installed a variable speed. Because flowrates vary so much between pump models and RPM range for variable speed motors it is hard to cover that to cover a wide range of pool conditions.

      If you are interested in dual speed’s flowrate, you can view its pump curve on the manufacturer’s website. Of course, you will need to calculate your feet of the head so you can find the expected flow rate.

  3. If I did this to a Pentair Whisperflo, I wouldn’t need to change the impeller? I thought impellers were optimized to run at a particular RPM.

  4. I have 22 years in the aftermarket as a pool tech. I want to hear from ANYBODY why an expensive variable speed pump motor is any better than a standard 2 speed pump. VS pumps want a few hours a day at 3,200 rpm. Then they want longer hours at 1,700 to 1,800 hours a day at low speed.
    Guess what? A standard 2 speed motor runs at high speed, 3,450 rpm, low speed runs at 1,725 rpms. Kinda about the same, right?

    This whole variable speed crap is nothing but smoke and mirrors. The two speed motors (which have been on the market for decades) can be run in ANY control system. All control systems have 2 speed relays available, and 2 speed pumps will even run with Intermatic mechanical controls.

    As a bonus, there are no user unfriendly menus to deal with. As another bonus, you don’t have an electronic computer sitting on top of your pump 24/7/365.

    I’m all for innovation in pool technology, but there is NO improvement here, the stuff just costs a lot more and is more prone to failure, while confusing the customer the whole way. Don’t get sold. Talk to someone who works on this stuff, not to the people trying to sell you stuff.

    1. In your 22 years of experience, I would hope you would have come across a pump curve, or possibly read about the law of affinity that governs electricity usage on motors. Because I am not sure where you are getting your RPM numbers but they seem to be wholeshot generalizations. A variable speed motor’s settings are best described as a “tuning process” after the pump is installed. No manufacturer I have heard has stated solidly that a pump would always be set at 3200 RPMs for X period and 1725 for Y period of time. Because different pool have different feet of head, and varying filter sizes. This obviously means that a system is restricted by what type of flow a pump can put through it. 3200 RPMs on Pool ‘A’ may be great while on Pool ‘B’ it is akin to turning on a firehose, harming the filter and doing who knows what else.

      With a dual speed, you are stuck with only two speeds, Hi and Lo. So essentially it is full afterburners or a stroll in the park. The variable speed allow you to find the sweet spot between flow and electricity usage.

      Besides RPMs you have amp usage, which has this thing called the Law of Affinity that comes into play.
      For example: Amp usage and RPMs are not locked together, a dual speed pump running at 3450 may use 15 amps. But the same dual speed pump running at 1725 RPMs only uses 3 amps. The amps drop significantly more than the RPMs, allowing for saving when running on the low speed for long periods rather than on high for short periods.

  5. Where would I look if after I’ve installed the v-green 270 and an auxillary load (booster pump) I am not showing any power to the v-motor? the connection at the Line 1 & 2 are hot, but the pump itself doesn’t turn on for me to program the quick start. The documentation that comes with the pump isn’t very complete.

  6. i need help wiring up a new pump Just purchased a PureLine Prime Variable Speed Pool Pump 1.65 HP to replace a 1 hp single speed motor. when i removed the old pump instead of having a black, red, and green wire. i have two reds and a green. How do i determin what red wire goes on L1 and what one goes on L2 ?

    1. If your old pump was wired for 230-volts then there is no wrong answer. Both of the red wires carry 115 volts, so you just have to put one red wire to each terminal connection, and the green wire to the green ground screw and you are done.

  7. Can a VS pump be programmed with its onboard electronics to 2 appropriate speeds that can then be chosen by my old Jandy Aqualink automation box maybe with its Dual Speed Pump Relay Kit?

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