Question about Honda Quincy 17 - Gallon Air Compressor with 5.5 Hp - G15H17PC3B

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IR EP100 compressor-getting change separator element alarm

Changed element still gives alarm. Lost a piece of surgical glove into the air intake weeks ago. Is this clogging something? I need a schematic of the air flow so I can better troubleshoot this. I am suspecting a solenoid and pressure switch located on the front inside wall of the unit that is plumbed to one side of the separator pressure by a 1/4" nylon hose. I dont understand the engineering behind this sensor since the opposite side of the separator seems to be plumbed to the output hose of the unit. Any ideas?

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  • fredericksim May 11, 2010

    what alarm , is it air filter differential ,separator and or oil filter? the glove should have been schredded and deposited into the separator tank


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Ingersoll-Rand uses a differential pressure switch that should be hooked to the separator tank on the "wet" side of the filter and to the "dry" side of the filter, either to the sump lid or to the bottom side of the minimum pressure valve on top of the sump tank. if it is hooked up down stream of the minimum pressure valve it will not work correctly.

If it does not use this, it reads pressure between 2 transducers on the compressor to determine the pressure drop across the separator filter while the compressor is under load. ou need to determine what system you have first to figure out what the problem is. feel free to contact me through my website for more information

Posted on Dec 16, 2009

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My ssrxpe60 ingersoll rand compressor is giving a high air pressure alarm and shuts down

I may be missing something here but typically a SSR is a rotary screw machine.XPE 60 is the model. It probably has a controller of some type for this person to know its shutting down on high air pressure alarm. So as the previous person kindly said don't give advise on something you know nothing about before you get some one hurt or killed!!!!
To answer the question. You may have a pressure transducer bad but most likely you have a minimum pressure check valve stuck in the closed position. When the compressor starts air pressure in the separator tank builds. At approximately 65 Psi the MPCV opens and allows air to the after cooler and out into the system. If the MPCV doesn't open the air pressure in the separator tank becomes to high. You then get the high pressure alarm and the unit shuts down.
Make sure the air pressure is zero, electrical disconnected and discharge line isolated from system. Once done you should be able to unscrew the aluminum cap on the check valve. Be extra careful due to spring tension. It should loosen as the cap is removed. If the parts inside are very corroded or you are unable to remove the cap you may have to replace the complete valve. If able to disassemble clean and purchase a rebuild kit for your MPCV if available.


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1 Answer

I have a atlas copco compressor 185 after I change the separator it is blowing hot air and keeps turning off

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1 Answer

Ingersoll rand T30 wont shutoff and is dumping air out of the pressure relief valve , i replaced the relief valve and it just does the same thing when it reaches 60 p.s.i. the prv just starts to unload...

How old is the machine and when was the last time it was serviced, more specifically when was the separator element replaced?

The PRV you are talking about, im guessing you mean the one on the oil separator tank? (Where you put the oil in) If so, it sounds to me like the separator is blocked and needs replacing.

When the air is compressed, it goes into this tank (with the oil) it then comes out of there, through the separator element to separate the oil from the air, to prevent the oil going into your system.
If this gets blocked, the air is unable to go through the filter element and just keeps pressurising the separator tank, the PRV will release this pressure for safety.

Replace the element then you should be ok

Hope that helps

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1 Answer

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