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Thread: Hayward Dual Speed Wiring B979 to B2979

  1. Back To Top    #1

    Join Date
    May 2016
    Pearland, TX

    Hayward Dual Speed Wiring B979 to B2979

    My old pump has 4 wires: Green(ground), Red on connection 4, Blue on 2, and Black on 1.

    My new pump: Green (ground), L1, L2, A.

    I think the connection should be Blue on L1, Black on L2, and Red on A.

    Does this sound right?


    20,000gal, in ground, Hayward super pump II, Century B2979 2.0-2.5 HP motor, (4) C-7490 Cartridge Filters

  2. Back To Top    #2
    mas985's Avatar
    Join Date
    May 2007
    Pleasanton, CA

    Re: Hayward Dual Speed Wiring B979 to B2979

    There should be a wiring diagram on the motor label that you can follow.
    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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