FYI:

I wanted to model a packaged unit with water-cooled heat pump
heating/cooling and heat recovery, but I kept getting an error on my
condenser loop when using a PSZ:

***ERROR****************************************************************
*******
Loop: Effluent HP loop has zero design
flow.
Check input for consistency, or specify design loads.

I didn't get the error when I used the Water Loop HP system type, but it
doesn't allow for heat recovery. I determined that you have to set the
CONDENSER-TYPE to "Water Cooled" (instead of N/A) by manually entering a
User Default value (since the field doesn't allow you to select it from
the drop menu).

The CW loop is modeling effluent water from the discharge of a
wastewater treatment plant.

Regards,

William Bishop, EIT, LEED(r) AP