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English Translations » 【动设备圈】 » Question: Oil pressure protection for Bizerba single-unit tw

Question: Oil pressure protection for Bizerba single-unit two-stage compressor

2018-04-11View Original

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Air-cooled, R404a; oil pressure at startup: 6 kilograms, medium pressure: 2–3, suction pressure: -0.1, exhaust pressure: 14. Immediate shutdown protection is triggered once the oil pressure difference reaches a certain level. Why? Shouldn’t an alarm be triggered only when the pressure difference is below 0.7 kilograms?
Reply #22018-04-11
It’s better to have an instrumentation technician take a look and check whether there are any issues with the relay settings.
Reply #32018-04-11
The relay settings are fine; this unit has been shut down for several months and has just been restarted, with no problems occurring before. It has this problem now when turned on

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Translated at 2026-07-21 03:16:39

Original: https://bbs.hcbbs.com/thread-1960305-1-1.html

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