Hi guys,
Just a curious student here, no knowledge of CH/DHW systems. We've got a two port zone valve on one of the hot pipes near the cylinder, but it's been set on the MAN OPEN position. Just wondering what the point of it is if someone's left it open? It's a 'normally closed' valve.
I only ask because the rads get hot when the water goes on, even when we don't want it to - no idea what type of system is installed, happy to provide pics of copper if that helps.
Many thanks.
Just a curious student here, no knowledge of CH/DHW systems. We've got a two port zone valve on one of the hot pipes near the cylinder, but it's been set on the MAN OPEN position. Just wondering what the point of it is if someone's left it open? It's a 'normally closed' valve.
I only ask because the rads get hot when the water goes on, even when we don't want it to - no idea what type of system is installed, happy to provide pics of copper if that helps.
Many thanks.