Bought the 540 kit installed th solenoid valve, forgot to look for arrows… Does it matter with this unit? Only reason I’m asking is because I can’t see in its current location and would require taking grille off to see. Thanks.
Yes sir-ee Bob.
Yes it does.
I initially got the direction reversed when I put together my system … it acted like a normally open valve instead of normally closed! Yup arrows on the brass I think