Recent content by hazehendricks

  1. H

    do I open both hex ports before pressure testing a mini-split with no refrigerant in it?

    yes , the hex ports open with no sign of charge... the unit is 7 yrs old-senville 1200btu Leto version . I was thinking about old, possibly trapped r410a that could have been contaminated .....should I get a magnet and use it to manually open up the EEV all the way before test and vacuum. Or...
  2. H

    do I open both hex ports before pressure testing a mini-split with no refrigerant in it?

    I was told it has no r410a in it. I installed it with new line set, replaced the 8 year old Schroeder valves, bought refrigerant scale, vacuum pump, nitrogen w 600 psig regulator , 10lb r410a, manifold gauges , temp sensor for lines, 5/16 adaptor , 2 vacuum rated valve core removal tools w/ball...
  3. H

    do I open both hex ports before pressure testing a mini-split with no refrigerant in it?

    do I open both hex ports before pressure testing a mini-split with no refrigerant in it?
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