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Thread: Need help wiring a Pentair 1hp 2 speed

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    Need help wiring a Pentair 1hp 2 speed

    I am replacing an old 2 speed with a new Pentair 1hp 2speed (mod 011486). I assumed wiring would be the same as the old pump.
    The first thing I noticed was a notice on the motor that the pump must be installed with a two, multi, or variable speed motor controller.
    Isn't that the purpose of the switch on the back of the motor or am I missing something?
    Where the old pump had two terminals and a ground, the new one has three terminals and a ground??? #1 #2 and #3or4
    Everything I have found on line says to go by the wiring diagram on the motor---- for some reason that part of the label is not very legible??


    pent-pump.jpg

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    Mod Squad jblizzle's Avatar
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    Re: Need help wiring a Pentair 1hp 2 speed

    Welcome to TFP!!!

    Your pictures are way too small to read.

    Does your new motor have a switch on the back end cap?
    You just have to connect one of your LINE wires to the middle of the switch (black wire I think) and the other LINE wire to the terminal that does not have a wire coming from the switch. If the white and yellow are not already hooked up, it would take me some digging to find the correct terminals.

    - - - Updated - - -

    Found it.
    LINE to 1, other LINE to black wire to switch
    Yellow to 2
    White to 3/4

    And of course your ground wire to the green screw ... and a bare copper bonding wire to the lug on the outside.
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    Re: Need help wiring a Pentair 1hp 2 speed

    Thanks for the help.
    The motor does have a switch on the back end cap. The switch is already wired w/ the white and yellow wires. Should my wires go to 1 and 2--- and then nothing on the 3/4 terminal?
    photo3.jpg

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    Mod Squad jblizzle's Avatar
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    Re: Need help wiring a Pentair 1hp 2 speed

    For the 3rd time

    One of your LINE wires goes to 1
    The other LINE goes to the black wire from the switch, probably using a wire nut (pull on it , it is likely just tucked in the back)
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
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    Re: Need help wiring a Pentair 1hp 2 speed

    Quote Originally Posted by jblizzle View Post
    :Found it.
    LINE to 1, other LINE to black wire to switch
    Yellow to 2
    White to 3/4

    And of course your ground wire to the green screw ... and a bare copper bonding wire to the lug on the outside.
    Yup, thats correct. Line 1 is the common and goes on terminal 1. Line 2 feeds power to the switch (black wire on the switch). Yellow puts power on the high speed windings (terminal 2), White puts power on the low speed windings (terminal 3/4).
    14,000 gallon IG, Vinyl. Hayward 3/4 hp superpump, Penatair IC40 SWCG, Pentair automation, Hayward sand filter, Aqua Comfort heat pump, Hayward 400k Lo-Nox LP heater.

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    Mod Squad jblizzle's Avatar
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    Re: Need help wiring a Pentair 1hp 2 speed

    Well, I would not call Line 1 "common" as that implies other meanings for electricity. Line 1 and Line 2 are interchangeable.

    I suppose Terminal 1 could be called the common terminal since it supplies power for both speeds.
    Jason, TFP Moderator
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    Re: Need help wiring a Pentair 1hp 2 speed

    I tugged and all three came out. I assume I need to attach the yellow wire to #2, white to #3/4, black to one of my leads, and my other lead to #1?
    (I know, I know. what happens when you assume)
    Thanks again for your help.
    photo (4).jpg

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    Re: Need help wiring a Pentair 1hp 2 speed

    Quote Originally Posted by jblizzle View Post
    Well, I would not call Line 1 "common" as that implies other meanings for electricity. .
    I realize some people call the white neutral wire the "common", but when talking about a 2 speed motor, common is the correct term for the leg that supplies power to both windings. Thats the term used on schematics. It also makes a difference if you use automation to control the pump. The "common" leg comes directly off the primary pump relay. The other hot leg goes to the 2 speed relay. But since the OP is going to use the switch, its kinda moot which leg goes on #1 and which leg gets connected to the black wire on the switch.
    14,000 gallon IG, Vinyl. Hayward 3/4 hp superpump, Penatair IC40 SWCG, Pentair automation, Hayward sand filter, Aqua Comfort heat pump, Hayward 400k Lo-Nox LP heater.

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    Re: Need help wiring a Pentair 1hp 2 speed

    [QUOTE=mbwhitecap;806034]I tugged and all three came out. I assume I need to attach the yellow wire to #2, white to #3/4, black to one of my leads, and my other lead to #1?
    (I know, I know. what happens when you assume)
    Thanks again for your help.

    I think you have it. Heres the proper diagram
    14,000 gallon IG, Vinyl. Hayward 3/4 hp superpump, Penatair IC40 SWCG, Pentair automation, Hayward sand filter, Aqua Comfort heat pump, Hayward 400k Lo-Nox LP heater.

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