How to model a Heat Recovery System

[Sebastian Blechmann]

Hey there,

I am trying to model a Heat Recovery System (HRS) that does not have a heat wheel but a fluid circulation system (see drawing).

For the system, I could only find "brick:Heat_Recovery_ Hot_Water_ System" which does not really make sense referencing to the temperatures. 

For the equipment, I thought of modelling the heat exchangers simply as both, "brick:Heating_Coil" and "brick:Cooling_Coil" since the system can be used for both, heating and cooling.

Does anyone have any ideas how to model this kind of system? Thanks in advance :)

[Sebastian Blechmann]

Edit: "brick:Economizer" didn't seem to fit since it's not just one component but many components forming a system.