HP POD 20c Maintenance And Service Manual page 41

Removing the chilled water temperature sensor internal components
Remove the four screws from the sensor cover (1).
1.
Remove the sensor cover (2).
2.
Label and disconnect the sensor wires.
3.
Remove the two screws from the chilled water temperature sensor circuit board (1).
4.
Remove the chilled water temperature sensor circuit board (2).
5.
Replacing the chilled water temperature sensor internal components
Replace the chilled water temperature sensor circuit board (1).
1.
Removal and replacement procedures 41