hi all

seeking advice please

i recently commisioned a small fridge unit (txv) and charged it to the subcooling, i noticed the sight glass was slightly bubbling but left it as thought system had been charged properly, problem is one of my technical supervisors checked the unit not long after and complained i had left it short of gas and that he had to charge it to full sight glass.

would just like to know if i did it wrong and should have charged to clear sight glass

cheers
shaun