Clean It Up
UK Window Cleaning Forum => Window Cleaning Forum => Topic started by: Lee GLS on April 23, 2011, 09:06:43 pm
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i got a vyair pump to replace my shurflow pump that sounds like a bag of nails after 6 months. i connected it up today to my digital flow controller, the pump work and so does the controller, but the dead end detection doesnt cut in, when i switch the flow off the pump continues for quite a while until the pressure switch cuts in, are these pump supposed to be wired into the flow controller with or without the pressure switch? would removing the pressure switch mean that the controller would cut in with the dead end detection?
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Hi lee i to have the same pump and i did try it on my flow controller (pure freedom one ). i had the same problem as you so i did away with the controller and works a treat now. have you tried it with out the switch yet to see if its any better let me know what you find out sorry i could not have been more help dave
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i will try it tomorrow and let you know, unless someone else tell me other wise before then ;)
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i will try it tomorrow and let you know, unless someone else tell me other wise before then ;)
I hope it dose work for your sake as well as mine because mines bin doing my head in over the last 3 days so will keep an eye out on this post tomorrow all the best dave
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dave, did you adjust the calibration of your flow controller to see if it made any difference?
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dave, did you adjust the calibration of your flow controller to see if it made any difference?
yes mate but no good i tried everything. the only thing wrong with them pump is the pressure switch is none adjustable unlike the shurflo,s
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Got it working today, I didn't need to disconnect the pressure switch, but the auto cal didnt work, so I just did a manual cal until I got the setting right and it works perfectly.
The pump is really good value, it's extremely quiet and shouldske the battery last longer as it only draws 3amps on full power instead of the 8amps the shurflow draws.
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Got it working today, I didn't need to disconnect the pressure switch, but the auto cal didnt work, so I just did a manual cal until I got the setting right and it works perfectly.
The pump is really good value, it's extremely quiet and shouldske the battery last longer as it only draws 3amps on full power instead of the 8amps the shurflow draws.
Hi lee if you don,t mind me asking what was the cal setting and you do know the amp draw on them pumps are the same as the shurflo i checked it the other day on full speed and the amp draw was 6.47amps cheers dave
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Save, I will look later, or tomorrow, but I think with the flow on 50 the cal was roughly 55, I didn't realise they drew the same amps, im very impressed with the pump though.
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Save, I will look later, or tomorrow, but I think with the flow on 50 the cal was roughly 55, I didn't realise they drew the same amps, im very impressed with the pump though.
ok lee cheers. you are right the pumps are a1 if i can get mine to work like yours with the flo conn i will be more than happy
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Dave, just looked at the controller, the cal is set at 60 with the flow at 50.
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Dave, just looked at the controller, the cal is set at 60 with the flow at 50.
cheers mate. looks like me fitting mine back on now after i have done all me work tomorrow.
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Hi lee i have set up my flow con like you set yours up today and still can not get the dam thing to work. i changed the cal up and then down and the flo but it will not have it so i am thinking of buying another tank and using it with out because its really rubbing me up the wrong way now. glad you got yours sorted Dave
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Whats the controller actually doing dave?
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Whats the controller actually doing dave?
Hi mate the controller is flashing d.e for dead end but it won,t flash p.s. the pump keeps switching on and off trying to build the pressure but still won,t flash PS so its going to flatten the battery in no time :o. i have tried the controller on 60 flow and 85 cal if i put the cal on 80 and the flow on 80 it works fine but soon as i turn the flow down to 55 the pump will not switch of all together so i am thinking could it be the flow controller knacked :'(. Dave
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thats the way they work, the d.e, dead end, is the controller controlling the pump, if you leave it long enough ps will flash up because it has built up enough pressure to activate the pressure switch, when the d.e cuts in, its getting ready to come on instantly when you turn the flow back on.
Have the pump come on for a seconds like it does when the controller is flashing de shouldnt run the battery flat, what size battery are you using?
I though this was a problem when i first got mine, but that is the way they work, both of mine do this, i have 2 pumps and 2 controller running from a 75ah battery as well as a cordless drill wired in to the battery to wind the hoses, and the battery will last 2 days before it needs recharging.
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I appreciate that I'm throwing my oar into something I know very little about so please don't cut my head off.
My understanding is that a digital flow controller uses current draw to determine when you have switched your flow off. As you stop the flow the pump carries on and the pressure builds up. But as the pressure gets higher, the pump draws more and more current. The idea is to find a point where on the pressure buildup to tell the electronics that when the pump draws more than Xamps then this is the trigger to switch the pump off.
Now if the Vyair pump only draws 3 amps when all the other pumps draw 6 to 8 amps this is maybe where the problem is. The cal of the flow controller would have to be set very low if that was the case.
However, I'm not sure that the specs Vyair give are correct, so maybe the flow controller is at fault. Strange it works for one of you and not the other - indicates flow controller issue to me.
CB please.
Spruce.
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i think that is how they work spruce, i have had to lower the cal on mine manually, because the auto cal wouldnt work with the vyair pump, but i have got it working now.
I think dave is having the problem that the flow controller stops the pump, but the pumps pressure switch doesnt cut in, meaning it will cycle every few seconds, but im pretty sure that this is the way the controllers work.
PS
we didnt invite you to comment on this topic, only me and dave are allowed to post ;D ;D ;D
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i think that is how they work spruce, i have had to lower the cal on mine manually, because the auto cal wouldnt work with the vyair pump, but i have got it working now.
I think dave is having the problem that the flow controller stops the pump, but the pumps pressure switch doesnt cut in, meaning it will cycle every few seconds, but im pretty sure that this is the way the controllers work.
PS
we didnt invite you to comment on this topic, only me and dave are allowed to post ;D ;D ;D
;D ;D ;D
This is what my Varistream does. It keeps switching the pump on to see if the tap has been opened, but switches the pump off again once the controller draws more than the preset amperage. It does it every couple of seconds.
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thats the way they work, the d.e, dead end, is the controller controlling the pump, if you leave it long enough ps will flash up because it has built up enough pressure to activate the pressure switch, when the d.e cuts in, its getting ready to come on instantly when you turn the flow back on.
Have the pump come on for a seconds like it does when the controller is flashing de shouldnt run the battery flat, what size battery are you using?
I though this was a problem when i first got mine, but that is the way they work, both of mine do this, i have 2 pumps and 2 controller running from a 75ah battery as well as a cordless drill wired in to the battery to wind the hoses, and the battery will last 2 days before it needs recharging.
the controller must switch over to ps or the pump will keep turning i have tried this and left it for about 20 min and still did not flash ps so it would run the battery's down i have got 2/ 75ah batts. i don,t know weather you have tried this lee but a little test you mite want to do is
turn the controller flow to its max and then push the batt button to show the volts and then turn the water on keep your eye on the volts how far they come down. then do the same test with out the controller fitted( use a multi meter and the volt only come down by 0.3. i will have to do some more digging with this one. dave
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i think that is how they work spruce, i have had to lower the cal on mine manually, because the auto cal wouldnt work with the vyair pump, but i have got it working now.
I think dave is having the problem that the flow controller stops the pump, but the pumps pressure switch doesnt cut in, meaning it will cycle every few seconds, but im pretty sure that this is the way the controllers work.
Spruce you are more than welcome. if you can fick this i will pay ya because there could be a flow controller for sale soon be quick because anytime now its going under the front weels of me van ;D
PS
we didnt invite you to comment on this topic, only me and dave are allowed to post ;D ;D ;D
;D ;D ;D
This is what my Varistream does. It keeps switching the pump on to see if the tap has been opened, but switches the pump off again once the controller draws more than the preset amperage. It does it ever couple of seconds.
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i cant disconnect my controller easily, otherwise i would give it a go.
My pumps which were shurflo, have always done this, just flashed de, the contollers are designed that you dont need the pressure switch, and with out a pressure switch, the controller will never flash ps, because there isnt one to cut in.
There is no problem with your controller, that is just how they work, i cant see that the pumps are going to use much power when they cut in for a second when the de has cut in.
Are they actually running your batterys flat then?
Having your pump running on full power without the controller is going to drain the battery quicker than having a flow controller and having the pump cut every few seconds when the de has cut in.
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right, i have just been out to the van, pump the pump on full, got the battery reading up and turned the flow on and it dropped 0.3v, then with the controller flashing D.E, the voltage dropped 0.1v for split second then went back up as soon as the pump stopped.
That 0.1v is hardly going to use any power over the course of the day.
Why dont you try leaving the controller flashing D.E for an hour and see how much the voltage actually drops over this period, im pretty sure it would hardly drop at all.
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right, i have just been out to the van, pump the pump on full, got the battery reading up and turned the flow on and it dropped 0.3v, then with the controller flashing D.E, the voltage dropped 0.1v for split second then went back up as soon as the pump stopped.
That 0.1v is hardly going to use any power over the course of the day.
Why dont you try leaving the controller flashing D.E for an hour and see how much the voltage actually drops over this period, im pretty sure it would hardly drop at all.
ok mate will give that ago tomorrow. i was just a bit worried about it taking so long to go to ps because it never did that on the shurflo pump witch was the 100psi 6.4 lt per min. dave
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lee i just wanted to add thank you for all your help i hope i get it sorted cheers mate dave
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no problem, hope you get a solution you are happy with.
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dave, i called vyair today to see if the pressure switches are adjustable, they arnt :(, but they are supposed to be getting a new pressure switch in that cuts in at a lower psi, i think he said 80psi, this is probably what you need so that when the controller stops the pump, DE, the pressure switch should then cut in because it requires less pressure to activate.