Scroll compressor differential pressure control during compressor shutdown transitions |
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| 申请号 | EP14155521.9 | 申请日 | 2014-02-18 | 公开(公告)号 | EP2767784A3 | 公开(公告)日 | 2015-11-18 |
| 申请人 | Liebert Corporation; | 发明人 | Noll, Roger; Monnier, Lou; Helmink, Gary A.; Lin, Zhiyong; Schutte, Daniel J.; Dolcich, Benedict J.; | ||||
| 摘要 | A method including determining whether an OFF criterion is satisfied for a lag compressor of a tandem set of scroll compressors. The tandem set of scroll compressors includes a lead compressor. The method further includes: initiating at least one process when the OFF criterion is satisfied; and maintaining the lag compressor in an ON state for a predetermined period subsequent to the OFF criterion being satisfied. The at least one process includes at least one of: operating the lead compressor at a maximum level; overriding a motor overload protection method, wherein the motor overload protection method protects motors of the lead compressor and the lag compressor; and overriding a proportional integral derivative (PID) method to reduce a speed of a condenser fan. The PID method controls the speed of the condenser fan. | ||||||
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| 说明书全文 | |||||||
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