Curious to know if any of you use superheat in any manner when diagnosing an HVAC? I hear more and more techs using SH on sytems with TXVs contrary to all the books and charts that state SH to be used on fixed and SC on TXVs.
Is there a chart/table out there that sates target SH for a TXV????
I am new to this trade and it has gotten very confusing - evryone seems to have many different answers to the same question. I know you cant have both target SC and target SH on the same system at same time. Target SH on a fixed will not be the same on a txv system.
Ona side note - other than some commercial units - are there many fixed residential systems out there????