Dear eQUEST Brain Trust:

I am trying to model a chilled water heat pump using the "loop to loop" approach and have reached a point where I know not where to go...

The rules call for the heat pump condenser to be linked to a Lake/Well loop. The system also has boilers attached to the system preheat coil and to the zone reheat coils, in a sort of supplemental format for when the HP chiller cannot meet set points.
I can create all the loops, with associated pumps, yet the lake/well loop requires a heat source. I cannot determine how to do that (after hours and hours!), or if I am missing something.

Does anyone know of a procedure for modeling this situation (besides the eQUEST help pages)? I wonder if the boilers may be part of the issue.

Many thanks to everyone and wish you all the happiest of holidays.

Regards,

Jeff Ross-Bain, PE, LEED Fellow, WELL AP, BCxP, BEMP, HBDP
President

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