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  1. HVAC
    Good day all. I was doing my annual A/C pressure check, and found my superheat calculation off that my system was a bit low on R22 (superheat was 30 degrees, should have been about 16). I proceeded to add some R22 through my manifold. When opening my low side valve on my manifold my px...
  2. HVAC
    Can anyone tell me what the superheat target calculation would be for a freezer? I recently had to add some R134a to my freezer and I need to know what my target superheat should be. I know that the formula for a typical HVAC is [(3*return wet bulb temp)-outdoor dry bulb temp-80]/2. But will...
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