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/diy/ - Do It Yourself

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>> No.2757691 [View]
File: 3.39 MB, 4096x3072, IMG_2024.jpg [View same] [iqdb] [saucenao] [google]
2757691

>>2757596
This is just an old piece of shit i found laying in a motor room after they upgraded to a new system i was just seeing how you would do it. Its from 88 but i have seen the next version of this still being used today so i could connect to it now. It seems to still work so it was just changed out for age, I't was used to control the compressors on a rack in a grocery store so it would try to keep a a certain pressure setting that you put in by cycling compressors on and off it had a problem it would dial out and tell the office.

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