Table of Contents
In HPXML multiple HVACDistribution
elements can be associated with a heating
or cooling system. For the purposes of this translator, it is required that only one HVACDistribution
element be linked.
That element can then describe a ducted system, a hydronic
system, or an open ended other system. For the translation to HEScore, only
HVACDistribution
elements that are ducted are considered.
For each Ducts
element in each air distribution system, the location of the
duct mapped from HPXML enumerations to HEScore enumerations according to the
following mapping.
HPXML | HEScore |
---|---|
conditioned space | cond_space |
unconditioned space | not translated |
unconditioned basement | uncond_basement |
unvented crawlspace | unvented_crawl |
vented crawlspace | vented_crawl |
crawlspace | not translated |
unconditioned attic | uncond_attic |
interstitial space | not translated |
garage | unvented_crawl |
outside | outside |
HPXML | HEScore Hierarchy |
---|---|
living space | cond_space |
unconditioned space | uncond_basement, vented_crawl, unvented_crawl, uncond_attic |
under slab | under_slab |
basement | uncond_basement, cond_space |
basement - unconditioned | uncond_basement |
basement - conditioned | cond_space |
crawlspace - unvented | unvented_crawl |
crawlspace - vented | vented_crawl |
crawlspace - unconditioned | vented_crawl, unvented_crawl |
crawlspace - conditioned | cond_space |
crawlspace | vented_crawl, unvented_crawl, cond_space |
exterior wall | exterior_wall |
attic | uncond_attic, cond_space |
attic - unconditioned | uncond_attic |
attic - conditioned | cond_space |
attic - unvented | uncond_attic |
attic - vented | uncond_attic |
interstitial space | not translated |
garage | unvented_crawl |
garage - conditioned | cond_space |
garage - unconditioned | unvented_crawl |
roof deck | outside |
outside | outside |
Warning
If an HPXML duct location maps to not translated above, the translation for the house will fail.
For each Ducts
element with the same insulation level in an air distribution system
the FracDuctArea
is summed by HEScore :ref:`duct location <ductlocationmapping>`.
If the any of the Ducts
elements in a particular
:ref:`location <ductlocationmapping>` have a DuctInsulationRValue
or
DuctInsulationThickness
that is greater than zero or have a DuctInsulationMaterial
that is not None
,
all of the ducts in that location are considered insulated.
Duct leakage measurements are associated with an AirDistribution
element.
It can be specified quantitatively or qualitatively.
To quantitatively specify the duct leakage to outside in CFM25 of an AirDistribution
system
(e.g., duct blaster measurement), the translator expects to find the following elements:
DuctLeakageMeasurement[not(DuctType)]/DuctLeakage[TotalOrToOutside="to outside" and Units="CFM25"]/Value
element with the numeric value- If the above element is not found, the values of the elements
DuctLeakageMeasurement[DuctType="supply"]/DuctLeakage[TotalOrToOutside="to outside" and Units="CFM25"]/Value
andDuctLeakageMeasurement[DuctType="return"]/DuctLeakage[TotalOrToOutside="to outside" and Units="CFM25"]/Value
will be summed and used.
If quantitative duct leakage measurement is not specified, the translator expects to find either of the following qualitatively specified duct leakage measurement elements:
DuctLeakageMeasurement/LeakinessObservedVisualInspection
element with the value of "connections sealed w mastic".HVACDistribution/HVACDistributionImprovement/DuctSystemSealed
element with the value of "true".
If neither qualitative nor quantitative element is specified, it will result in an "unsealed" designation.