I am modelling a water cooled DX system, which also has a economizer coil.
The water side economizer reduces the set point of the tower water and
circulates that cooler water through the economizer coil located on the
inlet of the unit (gets mixed air). The water that comes out of this coil
can then go into the condenser so that the compressor can operate as
needed.

Using the air side water economizer tab does not do anything (no change
with or without water economizer).

My feeling is it must be because of same condenser loop for both the DX
coil and the economizer coil, maybe I need separate loops?

Any ideas how to get this to work?

Thanks for any inputs.
-Rohini