I am trying to model Parallel PIU HW Rht coils to my airloop. However, I cannot see the the HW coils appearing in my plant loop. When I add AirTerminal Single Duct VAV HW Rht objects, there is a ribbon at the top and under the gear/chain-link icon I can select which plant loop the HW coil belongs on. There is no such ribbon or gear icon for the PIU HW Rht coils.
When I run the simulation, I receive an error telling me that my PIU HW Rht units are not connected to a plant loop. How do I do this?