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Lift pump question?

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[Deleted User]
[Deleted User] Posts: 0
in THE MAIN WALL
I am looking for some information on lift pumps and day tanks. And how the pressure switch works. Any help will be appreciated. Thank You

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  • Bluenose_15
    Bluenose_15 Member Posts: 1
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    lift pump

    You could try suntec's web site. What do you want to know?
  • [Deleted User]
    [Deleted User] Posts: 0
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    I'm trying to find out how the pressure switch works?
  • HBW
    HBW Member Posts: 33
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    Try this link




    http://hbctechlit.honeywell.com/techlit/PDF/60-0000s/60-2159.pdf
  • Tom M.
    Tom M. Member Posts: 237
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    Mike

    If you are looking at a system similar to ones that I've seen in my area, you may be puzzled by the location of the pressure switch. Some tanks have it mounted on the side outlet of a tee and it looks like it's on the overflow/ return pipe. If this is the case, what is actually going on inside the tank is that there is an internal tube from the bottom of the tee which goes to the top of the tank. The tank fills up around this tube and the weight of the oil in the tank can be sensed by the pressure switch. The switch is very sensitive and will turn the pump off when the oil is just a few inches above it. If the switch fails, when the oil reaches the top of the overflow tube it will gravity feed through the inside pipe and back to the tank. Hope this helps.
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