Question about nomenclature.
Ok, the charging valve(s) on the outside AC unit. (22 year old Carrier 5 ton unit) What are those things called? Both the suction line and the liquid line on mine has one of these valves. They have a nut (cap?) on top underneath which there is a Allen wrench connection for runnng the valve up and down. I keep mine in the "all the way up" position.
I undertand that when that valve is ran "all the way down" that the line is then completely blocked. But, apparently not to the little nipple where you attach the line to the Freon tank. I keep a cap on these nipples to prevent freon leakage.
I want to replace the Schrader valve in the charging nipple but don't know how to block the flow of Freon through the nipple. How do I do dat????