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Shuffle Pressure Switch


Pit Creature

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Pit Creature

Hi, I've been sorting out a new van setup recently while not really knowing what I'm doing having only worked with and backpack before plus trad. I've bought a lot of stuff 2nd hand but I've managed to get everything going and it's already helping me to work more efficiently. Reading through this forum has been a big help so thanks for that!

I haven't been able to figure out how to wire up the shurflo pump to get the pressure switch to work when I'm using the univalve though.

I gather that I could replace the controller I have with one that has a pressure switch built in to solve this but is there another way? I've got a couple of spare wires coming out of the pump which I believe are connected to a pressure switch but I don't really know what to do with them to get it working.

Any ideas? Thanks.

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Basically the +ve wire from your controller that is currently connected to the pump needs to go to one side of the pressure switch. Then the other side of the pressure switch goes to +ve on pump. So the +ve electricity has to flow through the pressure switch. So when pressure is high it cuts power to pump. 

Hope that helps? 

It would be good to see picys of your install as we all do things differently and there is always something new we can learn. 

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Pit Creature
2 hours ago, ched999uk said:

Basically the +ve wire from your controller that is currently connected to the pump needs to go to one side of the pressure switch. Then the other side of the pressure switch goes to +ve on pump. So the +ve electricity has to flow through the pressure switch. So when pressure is high it cuts power to pump. 

Hope that helps? 

It would be good to see picys of your install as we all do things differently and there is always something new we can learn. 

Cheers. It needs a bit of a tidy up but does this photo help? Both of the spare wires are red so I'm not sure which would way around I'd need to do it.

IMG_20210430_145956107.jpg

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The white wire from controller to red wire of the pump is where the pressure switch needs to go in between. It doesn't matter which way round the pressure switch goes. So disconnect the white from the controller and connect it to one of the reds on the pressure switch, then the other red on the pressure switch needs connecting to the red of the pump. The choc block connectors look a bit rusty might be worth replacing them with either new ones or crimp terminals (same as on pressure switch).

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Pit Creature
4 minutes ago, ched999uk said:

The white wire from controller to red wire of the pump is where the pressure switch needs to go in between. It doesn't matter which way round the pressure switch goes. So disconnect the white from the controller and connect it to one of the reds on the pressure switch, then the other red on the pressure switch needs connecting to the red of the pump. The choc block connectors look a bit rusty might be worth replacing them with either new ones or crimp terminals (same as on pressure switch).

Great. That's a big help mate. Cheers!

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6 hours ago, Pit Creature said:

Hi, I've been sorting out a new van setup recently while not really knowing what I'm doing having only worked with and backpack before plus trad. I've bought a lot of stuff 2nd hand but I've managed to get everything going and it's already helping me to work more efficiently. Reading through this forum has been a big help so thanks for that!

I haven't been able to figure out how to wire up the shurflo pump to get the pressure switch to work when I'm using the univalve though.

I gather that I could replace the controller I have with one that has a pressure switch built in to solve this but is there another way? I've got a couple of spare wires coming out of the pump which I believe are connected to a pressure switch but I don't really know what to do with them to get it working.

Any ideas? Thanks.

If you are using a second hand pump it's most likely a mess of wire spaghetti. They always just have two wires as new because the pressure switch is prewired.

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Pit Creature
1 hour ago, Apw1210 said:

If you are using a second hand pump it's most likely a mess of wire spaghetti. They always just have two wires as new because the pressure switch is prewired.

That's what I thought when I saw it. Needed to take the wires apart just to make sense of it.

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1 hour ago, Pit Creature said:

That's what I thought when I saw it. Needed to take the wires apart just to make sense of it.

The V+ normally connects to the pressure switch then loops out which is hidden just giving you positive & negative which you then wire into your controller 

1995251470_ShurflopumpwiringtoVaristream.jpg.84df3a481db7d67ef629583ea3cb5fec.jpg

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