Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 3 of 3

Thread: northstar 2 spped pump

  1. Back To Top    #1

    northstar 2 spped pump

    Ive been building my own liner pool now for the last 4 weeks and have it 95 % finished but i need help wiring the pump its a 2 speed northstar and i have it running on high speed only 24 hours a day does anyone out there have a wiring diagram to wire this up right . I know i need some type of switch for low and high speed but need help wiring it in thanks in advance Brian
    20x40 inground liner, 1.5 northstar 2 speed pump,325 cartridge filter and zodiac LM 3 saltwater chlorinator and built by me

  2. Back To Top    #2
    spishex's Avatar
    Join Date
    Oct 2008
    Location
    Hillsborough, NC
    Posts
    1,375

    Re: northstar 2 spped pump

    There should be a diagram on the motor. Is there not? You'll have three wires + ground. You should have three terminals labeled on the diagram:

    - Low: receives 120v when low speed is on, 0v when high speed is on.
    - High: 120v when high speed is on, 0v when low speed is on.
    - Line (or COM, or Neutral): The third terminal is permanently neutral (120v motor) or 120v (whichever leg you're NOT switching between low and high speed on a 240v motor).

    So with a 240v motor, one 120v line will be hardwired to the LINE terminal, the other 120v line will go the switch which will then change between high and low.

  3. Back To Top    #3

    Re: northstar 2 spped pump

    Quote Originally Posted by spishex
    There should be a diagram on the motor. Is there not? You'll have three wires + ground. You should have three terminals labeled on the diagram:

    - Low: receives 120v when low speed is on, 0v when high speed is on.
    - High: 120v when high speed is on, 0v when low speed is on.
    - Line (or COM, or Neutral): The third terminal is permanently neutral (120v motor) or 120v (whichever leg you're NOT switching between low and high speed on a 240v motor).

    So with a 240v motor, one 120v line will be hardwired to the LINE terminal, the other 120v line will go the switch which will then change between high and low.
    spishex,
    Thanks for the info pump is running the way it should be with your help. thanks again Brian
    20x40 inground liner, 1.5 northstar 2 speed pump,325 cartridge filter and zodiac LM 3 saltwater chlorinator and built by me

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •