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01-08-2017, 04:23 PM #1
York millennium ycch163 rotary screw compressor
I understand the slide valve operation, but I do have a question about when the system is down. On this particular chiller there is no external oil pump to drive the slide back to minimal position for start-up. I can only assume (which I hate to do) that there is an internal spring that forces the slide back to minimal position, or ?? Thanks.