by nrgeng » 13 June 2013, 19:04
Jasper and HenkF, Thanks for the suggestions. After Jasper's last posting, I did use the Icon Editor to add an additional port. For some reason, I thought that the Unit default icons all had extra ports for attaching Energy or Information Streams beyond the ports needed for the Material Streams normally to be connected. The HeatExchanger Unit requires four (4) Material Streams to be connected so I assumed that the default port connections would include one or more for other stream types. Thanks again to both!