You are checking the supply chilled water temperature thermistor probe on a high- pressure hermetic centrifugal chiller. Using the illustrated chart, what statement is true if the supply water temperature is verified 45 ° F with a digital thermometer. GS-RA-48

Illustration GS-RA-48: the U.S. Coast Guard has not released this illustration.

Question

You are checking the supply chilled water temperature thermistor probe on a high- pressure hermetic centrifugal chiller. Using the illustrated chart, what statement is true if the supply water temperature is verified 45 ° F with a digital thermometer. GS-RA-48

Illustration GS-RA-48: the U.S. Coast Guard has not released this illustration.

Accepted Answer

Option D: When checked with control power on and the thermistor probe connected into the circuit, the thermistor probe voltage drop should be 3.805 volts.. With control power active and the thermistor probe fully integrated into the operating circuit, the electrical voltage drop across the sensor corresponds directly to the verified 45 °F chilled water temperature, yielding the standardized 3.805 volts.