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    jlyon988's Avatar
    jlyon988 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Feb 29, 2016, 05:45 AM
    Pressure switch for 2 wire single phase submersible pump.
    Getting ready to pipe in a new pressure switch for a Franklin submersible pump, and I'm having trouble understanding how to set low pressure pump on, and high pressure pump off limits. Anyone know how to choose and set these limits?
    hkstroud's Avatar
    hkstroud Posts: 11,929, Reputation: 899
    Home Improvement & Construction Expert
    		  
    #2

    Feb 29, 2016, 09:22 AM
    Most well pressure switches come set at either 30/50 or 40/60. The larger nut or bolt adjust both the start and stop pressures up by tightening or lower by loosening. To change from 30/50 to 40/60 tighten the larger nut

    The smaller nut or bolt changes the difference between the on and off. To go from 30/50 to 30/60 tighten the smaller nut or bolt.
    ma0641's Avatar
    ma0641 Posts: 15,675, Reputation: 1012
    Uber Member
    		  
    #3

    Feb 29, 2016, 11:36 AM
    Look under the cap of the switch. It will tell you what nut to turn to do what you want.
    jlisenbe's Avatar
    jlisenbe Posts: 5,020, Reputation: 157
    Uber Member
    		  
    #4

    Mar 1, 2016, 07:44 AM
    Pretty good video if you need one.

    https://www.youtube.com/watch?v=5WNbxu9ufPs
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