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Discussion Starter · #1 ·
Hello folks my name is David. I will try and explain my issue so you can understand what I'm saying. I'm working on my new Pioneer 12.000 BTU mini split I purchased . I have it all installed electrical is finished, vacuumed it down yesterday all was good there.Got to the part where you release the refrigerant into the system. I followed a video about this process. I opened the valves low and high went to disconnect the manifold from the service port and it started spewing refrigerant not a little seemed like a lot to me. So I panicked and stopped shut the valves back off and here I am asking if you think I'm OK.
 

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You are not OK as the amount of refrigerant in a mini split is very sensitive and critical.

Normally techs use low loss quick connect fittings on their gauges and we get a tiny puff when we disconnect them. If you lost quite a bit then you may not get very good cooling and could damage the unit.

Only way to correct the problem is to have someone recover the freon and then vacuum it and weigh in the proper amount and see why it leaked so bad. If the schraeder valve is damage it may need replacing.
 

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You’ll likely have to reclaim and weight the charge.
Is there a core in the access fitting?
You didn’t mention any part about leak checking the system. Was the refrigeration circuit verified leak free before evacuation?
 

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Discussion Starter · #4 ·
Thx guys, I kind of figured that would be the case. Not knowing the internal workings of that valve its hard for me to visualize the problem. The blue hose that is you hook to the service port to vacuum down.Does it matter which end of the hose is hooked to the mini. I have the low and high shut off it won't leak now will it.
 

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Yes.

One end of your gauge hose should have a tit which presses down on the schraeder valve core ( looks like a bicycle or car tire valve core where you put air in) and the other is open.

It should be impossible to work on the lines if you have the hose mixed up as the tit needs to press the core in to access the line.

Not sure what you have going on there.
 
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