Ingersoll Rand PL1IU-A9 rated PSI vs actual PSI differential Drastic

by Ben
(Atlanta GA)

I just purchased a Ingersoll Rand PL1IU-A9 compressor that is rated to 135 psi. I prepped it and fired it up. The unit pressurized to 60 psi and cut off. I realize that 135 psi is the "safe" limit psi but 60 psi seems rather low based on that rating. Should I tinker with the pressure regulator? When I pop the lid I see there is an adjustment screw for total pressure and another screw adjacent to it that to me looks like the refill trigger switch. Any tips on doing the adjustment or even if I should? Thanks for your help.


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Bill says....

An air compressor will come from the factory with a high pressure cut out and a low pressure cut in setting on the pressure switch.

If the compressor is rated for 135 PSI, it should fill to, and cut off at, 135 PSI.

If the compressor pressure switch shuts the air compressor off at 60 PSI, and the power stops flowing to the motor from the pressure switch as a result, then I would say that the pressure switch is pooched.

Nope, don't mess with the settings. Take the air compressor back and ask for a replacement. You may have a lemon.

Bill

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Ingersoll Rand Model 2475N 7.5

by Gerry D.
(Cashion OK, USA)

Bought a used IR Model 2475N 7.5hp single ph 80 gal. compressor. Need manuel that shows wiring diagrahm.

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Bill says...

Gerry, it appears as though IR does not have downloadable manuals for their air compressors, which really surprises me.

They may not be available for public consumption but they might be available if you contact IR.

www.ingersollrandproducts.com

Select the Compressed Air category, and then input your zip to find the local source.

Cheers,

Bill

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Troubleshooting T2 sensor - IR 25 HP Screw

by David
(Clearwater FL)

Upon startup today the compressor ran for less than a minute, shut down and "T2 Sensor" appeared in the screen. What does this mean and how can I verify that the T2 sensor is the problem? Also where is it?

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Bill says...

All very good questions, David. It's just that I have no idea what type of compressor, what HP, or any other details. Nor have I the foggiest notion of what a T2 sensor is.

It is important to include as much detail about the compressor as possible so that others visitors even more knowledgeable than I (hard to believe, I know!) can offer assistance too, and in particular, when I'm stymied.

If you want to add data, please do it as a comment here so we all can follow the thread.

Cheers,

Bill

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IR Gouged on Repairs

by Disappointed
(North Carolina)

Purchased a 1 year old "used and completely rebuilt" 100 hp variable speed compressor. 6 month warranty because it was new. After 8 months -have now had to replace the motor, stator, and drive. Bill is $21,000 - just about what we paid for it "new". We were robbed.

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Bill says...

Happy to post your complaint. Sorry to hear that you are unhappy about the service.

Just to clarify, and in fairness to IR, could you tell all the readers if it was IR themselves that did the work, or was it one of their distributors? I think this clarification is important, and I'd appreciate you commenting on this here.

Thanks,

Bill

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