unit static pressure
(See pressure, unit static)
Continue reading →main-glossary
unoccupied mode
[ASHRAE Standard 62.1]:when a zone is not scheduled to be occupied.
Continue reading →upper limit (of a duct)
[EN 12792:2003, 380]:algebraic difference between the maximum limit of size and the corresponding nominal size
Continue reading →utility
[ASHRAE Standard 62.2]:laundry, lavatory, or other utility room containing sinks or washing equipment.
Continue reading →vane control (of a fan)
(See fan control methods variable speed control)
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