I recently installed a mini split in my garage. I ran the lines and electrical and now im vacuuming down the lines. I've run the pump for 15-20 minutes twice and maintained -30inhg for the entire time. Then I close the valve shut the pump off and wait 30 minutes to and hours. After an hour I noticed that its risen to -20inhg. Is this normal for a mini split or do I have a leak somewhere I missed. I don't want to release the refrigerant if this is a leak. Can any help? Thanks.
source https://hvac-talk.com/vbb/threads/2242616-Fresh-install-mini-split?goto=newpost
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