1. Ingersoll Rand Compressed Air Dryers

Hmmm, maybe I linked to the wrong manual - how about this one? Here's the whole page; perhaps there's another one that's closer. If memory serves, I worked on a D52IN and looked like it was a rebadged something or other from Italy.

Ingersoll Rand Compressed Air Dryers

I know that Friulair OEMs for quite a few different re-badgers. I couldn't get a manual from them but one of the re-badgers had one on their site.

All very similar but not quite the same panel.but maybe I can figure it out with info from those manuals.will see tomorrow.thanks. Below is what my panel looks like.

I now realize what was throwing me off was the fact that even after you turn it on via the red 'off' button, the compressor isn't supposed to come on for another minute or so. Also the LED lights for 'compressor on, fan on, and water discharge on' are all just dots below the displays for same.they don't light up in the actual 'holes' in each display area.

So why are the holes there?? Apparently someone screwed up on the panel design and decided to go with what they had already.

If ever there was a case for basic instructions to be on a sticker on the back of the machine this is it. I still don't know what the default dew point setting should be. The only purpose of the green button below the red is to test the water discharge function!

The yellow triangles and round blue 'book' symbols are not even buttons and do nothing except look pretty and confuse matters even more. I'll echo the comments on the user interface. I've seen things like this designed by summer students, possibly under the influence of psychedelics and then later prettyfied by arts & design students. I swear the criterea are to make something impossible to understand no matter what. BTW, is the IR printed manual at all like the on line manuals I linked to? The owner can't find the original manual & the local rep was not helpful but would look at it if it was brought in.

The rep didn't think the probe was bad, but it was and a replacement made the unit work a lot better. The unit I worked on had the dewpoint set to 33 - I assume it's degrees fahrenheit. The drain interval is one minute & duration is one second. My experience with another unit is that if the dewpoint is too low, it'll ice up and block airflow. Hope this helps, Cheers.

I'll echo the comments on the user interface. I've seen things like this designed by summer students, possibly under the influence of psychedelics and then later prettyfied by arts & design students.

The unit I worked on had the dewpoint set to 33 - I assume it's degrees fahrenheit. The drain interval is one minute & duration is one second. Dewpoint is 33 now.just found it annoying no mention in manual of recommended alternative settings for different envirnoments. I mean, they can chatter on and on about stupid things nobody actually cares about, but not something that actually might matter. Drain interval sounds about right.