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Académie
HVAC
NCI Commercial System Performance Specialist
VAV System Performance
Vérification des connaissances
VAV System Performance
Vérification des connaissances
Vérification des connaissances
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When verifying VAV box performance, a minimum airflow setpoint that is set too high causes which common problem?
A
Overcooling in unoccupied zones as the minimum position delivers more air than the zone requires when the space has low or no heat gain
B
Excessive static pressure buildup that causes duct leakage at seams
C
The system fan runs at higher speeds during peak demand periods
D
The VAV box damper cannot fully open, limiting maximum zone cooling
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