Reptile
17-08-2010, 06:29 PM
Hello
Just finishing off my first install of a mini split. I've done everything by the book, and am currently sat at 300 microns vacuum with a digital gauge inbetween the service port and the manifold gauges.
Just a bit confused as to how to finish off? I'm guessing the vac gauge won't like pressure too much, so i need to get it out before I release the refrigerant... how best to do it?
Just pop the whole lot off now, and release the refrigerant unmonitored? But won't the vacuum be ruined when I release?
Or, break it off, refit the manifold gauges and pump, and re-pump for a further half hour or so?
Or, release refrigerant slowly up to a certain (low) pressure, then disconnect?
Any advice appreciated.
Just finishing off my first install of a mini split. I've done everything by the book, and am currently sat at 300 microns vacuum with a digital gauge inbetween the service port and the manifold gauges.
Just a bit confused as to how to finish off? I'm guessing the vac gauge won't like pressure too much, so i need to get it out before I release the refrigerant... how best to do it?
Just pop the whole lot off now, and release the refrigerant unmonitored? But won't the vacuum be ruined when I release?
Or, break it off, refit the manifold gauges and pump, and re-pump for a further half hour or so?
Or, release refrigerant slowly up to a certain (low) pressure, then disconnect?
Any advice appreciated.