About Air Compressors.com

More than 16 years on line helping folks with their air compressor problems!

You are here: Home / Used GA-90 Remote Start/Stop Circuit

Used GA-90 Remote Start/Stop Circuit

 

by Dennis Vinas
(Batavia, IL. USA)

We acquired a used GA-90 SN: AIF .079712 a couple of months ago. I installed the compressor and coupled the outlet port to 2-250 gallon air-holding tanks (in parallel) and output to a brand new Atlas Copco FX-15 Air Dryer. Compressor has been running seamlessly since I first started it in mid-August/2016.

 

GA-90 Remote Start/Stop Circuit Diagram
GA-90 Remote Start/Stop Circuit Diagram

 

 

GA-90 Remote Start/Stop Circuit
GA-90 Remote Start/Stop Circuit

 

I ran a remote Start/Stop, E-stop station outside of the compressor room. In remote mode, I can start the compressor but it won’t put out any air. I switched back to Local control mode and the compressor puts out air normally as before.

Can anyone tell me what I am missing?

I have attached a screenshot drawing for the start/stop and E-stop circuit I added. The E-stop has 2 normally closed contact blocks. The Start push button was initially a momentary NO contact block because the book says not to use a maintained-action button. I switched that to a maintained NO contact when I noticed on my first attempt to start that as soon as I released the start button, the compressor stops.

Do I need remote load and unload feedback to the control unit as well?

Thank you for taking the time to read through this.

______________________________________

Remote Start – Stop
by: Doug in s.d.ca

I suspect your last sentence is your answer.

But I can’t really read the drawings – too compressed.

Perhaps you can upload less compressed images?

_______________________________________

Remote Start/Stop
by: Dennis

Atlas Copco GA-90 stops using its resident Load/Unload Pressure Switch as soon as it is set for Remote Start/Stop so I had to put in a pressure switch with a deadband of 85 PSI and a switch point of 107 PSI downstream of the Air Dryer, right before air flows to the rest of the building.

The E-stop circuit (2-chains; 120VAC and 24VAC) stays active in any mode; Local or Remote control. I would have uploaded my .pdf schematic but the site only supports photos.

(This site now accepts a variety of uploads – moderator)

 

 

 


New comment? New question? Please add it here along with photos to help others help you with your compressor and equipment problem!

Subscribe to this page / comment / post
Notify of
guest
guest
0 Comments
Inline Feedbacks
View all comments

Search here to find the specific compressor info you need!

The latest pages added to this site include…

  • The Porter Cable compressor tank is full, but I can’t get air to come out? – December 2020
  • The compressor appears to compress the air but there no air at the hose on a 921.166460 – December 2020
  • Bambi 75/250 won’t build air after being on its side – November 2020

Getting around this site…

  • About Air Compressors
  • Sitemap – About-Air-Compressors.com
  • About Different Brands of Air Compressors
  • Calculating CFM
  • Identifying An Older Air Compressor
  • Jim Graham

Troubleshooting a compressor. Issues common to all and by the compressor make.

  • Troubleshooting Your Compressor
  • Compressed Air How To
  • Picking A Compressor
  • Air Compressor Parts
  • iranian dating website in usa

To help you understand compressors!

  • dating someone previously married
  • General Compressed Air Information

Disclosures etc.

  • Privacy Policy
  • Disclaimer & Copyright Policy
  • Contact About-Air-Compressors.com
Want to bragg about your gorgeous computer rebuild? We'd welcome it here!"

RSS feed information.

If you wish to be updated when new comments are posted, add: about-air-compressors.com/comments/feed/ to your RSS reader. Thanks.

© 2021 · about-air-compressors.com ·

wpDiscuz