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HVAC
NATE Low-GWP Refrigerant Certification
Charging Techniques
Knowledge Check
Charging Techniques
Knowledge Check
Knowledge Check
1 / 10
When charging an R-454B system by the subcooling method, which temperature should you use as the saturation reference for your subcooling calculation?
A
The bubble point temperature at the liquid line pressure
B
The dew point temperature at the liquid line pressure
C
The midpoint between bubble and dew point temperatures
D
Either bubble or dew point - the 1.5 degree difference is negligible
Check Answer
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