This model represents a collector/distributor which connects
nCon hydronic circuits in parallel.
The pressure drop between each connection is assumed negligible
compared to the pressure drop in each circuit, and is set to zero
in the model.
By default,
port_bDisSup and port_aDisRet),
mDis_flow_nominal is equal to the sum
of the nominal mass flow rate in each circuit.
However, this parameter assigment is not final and it can be set
for instance to a higher value to represent a primary overflow
in a supply through loop.