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Add multi-climate HERS tests #656

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Add multi-climate HERS tests #656

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shorowit
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@shorowit shorowit commented Nov 22, 2022

Pull Request Description

Adds multi-climate HERS tests from proposed Pub 002 draft.

TODO:

  • Add 10 - Ducts in Attic case
  • Add 13 - Heat Pump case
  • Review HPXMLs relative to final publication

Checklist

PR Author: Check these when they're done. Not all may apply. strikethrough and check any that do not apply.

PR Reviewer: Verify each has been completed.

  • OS-HPXML git subtree has been pulled
  • 301/ES rulesets and unit tests have been updated
  • 301validator.xml has been updated (reference EPvalidator.xml)
  • Workflow tests have been updated
  • Documentation has been updated
  • Changelog has been updated
  • openstudio tasks.rb update_measures has been run
  • No unexpected regression test changes on CI

@shorowit shorowit self-assigned this Nov 22, 2022
@bpark1327
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bpark1327 commented Apr 9, 2024

@shorowit I have some questions/comments for you:

  • For the NoMechVentDuctsInAttic scenario, the ducts have been relocated to the vented attic, but the DuctLeakageMeasurement remains unchanged. Is this intentional? [Scott response: Neal confirmed it's intentional.]
  • Shouldn't basement wall insulation be placed on the interior side rather than the exterior side, as described in Table 4-19 where it specifies R-values for Basement Wall Continuous Interior Insulation? [Scott response: Agreed, I will change that.]
  • Should the CFIS fan power be modeled as 487.2W instead of its current value of 232W as described in section 4.7.1.8? [Scott response: Agreed, looks like they changed it.]
  • In cases with conditioned basements, there's an additional 10-foot hot water piping. Is this intentional? [Scott response: Yes, that is the standard piping length per ANSI 301. See here.]
  • For the CFISDuctsInAttic scenario, shouldn't the CFIS fan power and DuctLeakageMeasurement be fixed as described in sections 4.7.1.8 and 4.7.1.10? [Scott response: Yes, the CFIS fan power needs to be updated, but the ducts don't need to be changed (see answer to first item above).]
  • What is the correct U-factor for the reference windows in CZ1A, 1.2 or 1.3? [Scott response: Good catch, probably a typo. Should be 1.2.]
  • HPXMLs were generated based on the REM files created by Big Ladder. I reviewed the REM files. It appears that the carpet in the floor construction is modeled as R-1.23. Pub 002 specifies the use of R-2 for carpet.
  • In the REM files, the tile is modeled as R-0.05, but Pub002 specifies the use of R-0.1 for tile.

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