Have a customer that has a Randell prep table with a TXV for the cold pan and a cap tube for the lower cabinet. each section has a stat and LLSV. The complaint is insufficient cooling in the lower section. All signs point to a restricted cap tube.
I was always told that you cannot use a cap tube with a receiver and you cannot mix a cap tube with a TXV in the same system. Apparently the factory has done both here. Is there any reason I can't/shouldn't install a txv in place of the cap tube?