Just a word to the mods - https://www.diynot.com/diy/threads/whats-this-part.603068/
I don't believe the question has anything to do with gas, I'm sure what the OP is referring to is the flow/return from/to the main HEX. Not too sure as I'm not very familiar with these boxes but It's definitely not the gas train side of things.
That being said, the OP shouldn't really be in there given it's a room sealed case unless he is competent and has the ability & equipment to check and test that it has been sealed and is running correctly when the case is back on.
I don't believe the question has anything to do with gas, I'm sure what the OP is referring to is the flow/return from/to the main HEX. Not too sure as I'm not very familiar with these boxes but It's definitely not the gas train side of things.
That being said, the OP shouldn't really be in there given it's a room sealed case unless he is competent and has the ability & equipment to check and test that it has been sealed and is running correctly when the case is back on.