outdoor temperature, running mean
[EN 16798-1:2019, 3.14]:exponentially weighted running mean of the daily mean outdoor air temperature overpressure.
Continue reading →main-glossary
overall heat transfer coefficient
[EN 12792:2003, 281]:heat flow per area for a given construction and for an overall temperature difference of one degree.
Continue reading →overlap length
[EN 12792:2003, 82]:length by which a fitting or duct overlaps a connecting duct.
Continue reading →overpressure
[AIVC, Air infiltration and ventilation glossary, 1992]:an induced pressure above ambient atmospheric pressure or other given reference pressure.
Continue reading →packaged unit
[EN 14511-1:2022, 3.42]:factory assembly of components of refrigeration system fixed on a common mounting to form a discrete unit.
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