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Académie
HVAC
NCI Residential System Performance Specialist
Testing Procedures
Vérification des connaissances
Testing Procedures
Vérification des connaissances
Vérification des connaissances
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A gas furnace measures a temperature rise of 45 degrees F and the nameplate specifies 35 to 65 degrees F range. What does this indicate?
A
Temperature rise is too low, indicating insufficient gas pressure to the burners
B
Temperature rise is above the maximum, indicating heat exchanger overheating from low airflow
C
Normal operation - 45 degrees F is within the rated range
D
Temperature rise should always be at the maximum of the rated range for best efficiency
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