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Académie
HVAC
NATE Air Distribution Service Specialty
IAQ Assessment
Vérification des connaissances
IAQ Assessment
Vérification des connaissances
Vérification des connaissances
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During system balancing, a technician increases blower speed first, then begins adjusting branch dampers. Why is this sequence less effective than the recommended approach?
A
The blower motor will overheat if dampers are partially closed at higher speed
B
Increasing blower speed first may require re-adjusting every damper after proportions are set
C
Higher blower speed damages the damper seals before they can be adjusted
D
Static pressure readings become unreliable at higher blower speeds
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