The following instructions and example show how to correctly draw a reverse return system in Netsys Heating.
In Netsys Heating you must use a combined Flow & Return pipe to connect to Emitters. You cannot connect separate single flow and single return into them. The same applies to the System Marker which also needs to be placed on a combined Flow & Return pipe. As such when drawing a reverse return system you need to include some short sections combined Flow & Return pipe. You then connect the separate single flow and single return pipes into these combined Flow and Return pipes.
When drawing and connecting single flow and single return pipes it is advised to use the Zoom > Regen option in order to confirm that pipes have been correctly connected.