I'm modeling a GSHP loop, with secondary loops for radiant heating and cooling, and DHW. I'm using the water-to-water heat pump component to transfer heat from the GSHP loop to the secondary loops. The component doesn't seem to be working at all and I can't figure out what's going wrong.

GSHP loop is set up like this, with the water-to-water heat pump on the demand side.

Radiant hot water loop is set up like this as an example, but all of the secondary loops are similar and not working