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SOLVED:

So after taking the workshop with the bigladder folks, I've come to understand the underlying E+ structure and was able to deduce what's going on. Here are the settings for packaged and split systems respectively:

Package System (uses zone cooling capabilities):

Inlet Air Configuration: ZoneAirOnly Compressor Location: Zone Parasitic Heat Rejection Location: Zone Split System (does not use zone cooling capabilities):

Inlet Air Configuration: OutoorAirOnly Compressor Location: Outdoors Parasitic Heat Rejection Location: Outdoors As of 8/2/2016, it appears that setting HPWH to use outdoor air still creates inlet and outlet nodes for the zone equipment even though it no longer requires them. I would presume this is a bug. Anyhow, going into the OS text file and removing the extra inlet and exhaust nodes should cause the OSM to stop throwing the severe errors and produce a correct simulation.

SOLVED:

So after taking the workshop with the bigladder folks, I've come to understand the underlying E+ structure and was able to deduce what's going on. Here are the settings for packaged and split systems respectively:

Package System (uses zone cooling capabilities):

  • Inlet Air Configuration: ZoneAirOnly ZoneAirOnly
  • Compressor Location: Zone Zone
  • Parasitic Heat Rejection Location: Zone Zone

Split System (does not use zone cooling capabilities):

  • Inlet Air Configuration: OutoorAirOnly OutoorAirOnly
  • Compressor Location: Outdoors Outdoors
  • Parasitic Heat Rejection Location: Outdoors Outdoors

As of 8/2/2016, it appears that setting HPWH to use outdoor air still creates inlet and outlet nodes for the zone equipment even though it no longer requires them. I would presume this is a bug. Anyhow, going into the OS text file and removing the extra inlet and exhaust nodes should cause the OSM to stop throwing the severe errors and produce a correct simulation.