So i am getting ready to add a refrigerated air dryer to my air system. So everyone that is running one how do you have them setup to cut on and off?
Mine has a switch to turn on and off. What brand are you looking at?
What do you mean by cut on and off? I turn mine on when I turn on my compressor, off when done.
Once its its on it cycles on and off just like a compressor.
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@Knick I wondered if they cycled on and off as some are labeled as non cycling so just made me wonder since I have never had one and going to add one.
@Phillipw if nothing changes going with Schulz. Which one do you have?
I turn mine on and off with compressor and it spits out water every 4 minutes. There’s nothing to set or adjust…
I have the Schulz ADS20 its made in Italy and does an excellent job.
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Hmmm wonder what that means non cycling?
It’s basically air conditioner for air. I would think it would freeze up if it did not cycle.
Mines non cycling and I haven’t had any problems with it. It does say something about not using it below 40 degrees in the manual…
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@Knick i wondered that as well which is kinda why i started this thread as was unsure as to mode of operation. Maybe the non-cycling is for higher flow use and it just stays on to keep system cool the entire time. I have been meaning to research it but betwen work and other things have not had good time to do heavy research.
I ended up buying one of the harbor freight ones seems to work well for me. I checked the temp when I first got it the hose connectors was about 32 degrees.
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I have a Ingersoll Rand DM144 dryer. It cycles on and off based on a dewpoint sensor. It turns off with the compressor at night. Works awesome. My compressor is an axial screw machine, so it operates much cooler than a reciprocating unit. The hotter the air in the discharge the more water it will hold.
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I did some quick research during a break from work as I just needed to find out more info. Basically the non-cycling dryers run all the time but still seems kind of odd. The cycling ones cut off based on several factors such as temp and dew point. What was interesting as i found one listed as high temp dryer and it is designed to work with 5 hp compressors that tend to have higher discharge temps overall as they are usually worked harder than a bigger compressor. So like everything else even dryers muddy the water with various specs.
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Most air dryer recommend a inlet temp. That is why so many put aftercoolers on their systems.
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I could see in a industrial application having a non cycling, as there would always be air flow and it would save wear and tear from start and stop. But units for small CFM rating seems foolish.
But maybe there is a call for them.
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So do you use that much air? does your compressor just unload when demand is low? Or is it set up to shut off if there is no demand for a period of time?
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Very high demand at the marina. I have boat bottom crews that refinish boat bottoms on larger yachts and cruisers.
They use a dustless blaster an then prep sand all day.The blaster uses crazy air when in use.
To answer your question, yes it unloads when it meets its setpoint and turns itself off after 20 min of unloaded state. Starts itself back up when it needs too.
Great compressor almost trouble free for many years. 46000 hrs on it as of this week.
Just do maintenance every 3000 hrs and it keeps humming. I bracing myself for a new screw cartridge anytime now.$$$
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Ok I thought it was at your shop that you put your new mill in at home! Or did the mill go to the marina?
So the compressor is 20+ years old?
Mills at the marina. No shop at my house.
I have a 60x80 building at the marina I keep all my toys. Yes, I think it is like 2001 or so.
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Do you do maintenance and equipment repair there?
I’m the maintenance director. We kind of do it all.
Worked for a large refinery for 30 years and retired. Went crazy sitting home. So I took on this job.
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