Best method of sequencing Kaeser compressors
Our facility in Indiana has 5 Kaeser compressors total.
We have a 330HP, a 185HP and 3 x 125HP.
We're trying to understand the best way to sequence them.
We typically depend on the 330HP to "lead" and then turn on smaller compressors as the demand increases (pressure switch settings on each compressor).
However, we're not sure this is the best, most cost effective method?
Brian, I am happy to post this for you in the hope some engineering types comment for you.
How you are sequencing the compressors is how I would if I were setting them up.
I can't speak to the cost, at least from the perspective of energy cost.
I can speak to the sequencing cost in that, if you lead with the 330 HP all the time, then it is going to be the longest running, and ultimately, will be the one to fail and require maintenance most often.
Consider, if it makes sense to you, changing out, via the pressure switch settings, which compressor is the lead.
Another way would be to have all compressors with the same cut in and cut out, and use a pressure sensor to fire up relays to start additional air compressors as the mains pressure dropped below the pressure sensor sent point due to increased demand.
The good folks at Kaeser would be pleased to hear from you too, I expect. They have got lots of folks on staff that help with this sort of thing.
Setting Kaeser pressure switch?
(tampa fl. usa)
Kaeser SX6 compressor (photo: ryanmachineco.com)
OUR kaeser SX6 pressure is factory set at 125 psi we now have equipment that requires 150 psi so we need to bump up our tank pressure to 150 psi. Im trying to not get Kaeser techs involved they are expensive may someone know how to set the pressure switch?
Hi Bob... I'm happy to post this for you, but I have my reservations about what you want to do in increasing the pressure output from your Kaeser air compressor.
If you drive a car that is rated at 100 MPH, and without making engineering and mechanical changes to re-rate it to drive at 120 MPH, then trying to drive it at 120 MPH could destroy the car.
Could that happen to your Kaeser compressor if you turn up the pressure setting so that the compressor is trying to compress air at pressure levels outside of it's engineering and material design? I think that could happen.
There is information on this site about pressure switches that you may find useful in your endeavor, though, it were my air compressor, I wouldn't do it.
water in sx6 oil seperetor
by Robert Smith
(Tampa, Fl. U.S.A)
I have an sx6 unit that had milky white oil, "water in the oil". I removed all the plumming, the oil seperetor and the dryer. I cleaned everything and reinstalled. I then installed NEW oil and filterS.
The compressior runs great with great pressure. The problem is that the oil in the sight glass of the oil seperetor is milky white again,"water in the oil seperetor" What could be causing this?????
by Chad Fuglseth
(West Fargo, ND)
When it is building pressure it seems to sound normal but when it is not building pressure and the fan is spinning with out a load on it, it seems like it speeds up and makes a very high pitched squeal or whistle. Can you get different fan blades for the Kaeser?
Chad, that's an engineering issue, and you probably want to get the straight goods from Kaeser:
What is squealing, though?
I don't know what model you have, so I can't even check to see what's what.
However, I worked in a plant with a 25HP demand type rotary screw air compressor, and the sucker was squealing all the time it was running, so this may not, and I emphasize MAY not, be an issue.
Kaeser is your best bet, unless another reader has had an experience with this and wants to offer advice.