Allow multiple CeilingFan elements

[shorowit]

Only one CeilingFan element is allowed:

OpenStudio-HPXML/HPXMLtoOpenStudio/resources/hpxml_schematron/EPvalidator.xml

Line 279 in c2cec15

<sch:assert role='ERROR' test='count(h:Lighting/h:CeilingFan) &lt;= 1'>Expected 0 or 1 element(s) for xpath: Lighting/CeilingFan</sch:assert> <!-- See [CeilingFan] -->

The element can represent multiple ceiling fans via the Count element, but you cannot specify differernt ceiling fans with different types.

We might have decided to only support a single element because of the defaulting logic, where we default the the total number of ceiling fans in the house (i.e, Count = NumberofBedrooms + 1). If there are multiple CeilingFan elements with the Count specified, how would we default them?

@joseph-robertson

[shorowit]

Maybe we could require Count only when there are multiple ceiling fans.

Or maybe we should require Count always (though it'd be a breaking change).