5.Replace the four screws that secure the sensor cover (4).
Chilled water system temperature sensor
The HP POD 20c contains two chilled water header temperature sensors. One is located in the chilled water supply header and one is located in the chilled water return header.
HP highly recommends replacing sensor internal components before replacing the entire sensor. For more information, see replacing the entire sensor.
You need a wrench and a screwdriver to remove and replace the sensor.
Removing temperature sensor from the chilled water system
1.Identify the location of the sensor to be replaced, and then remove enough header insulation to uncover the sensor.
2.Remove the sensor cover.
3.Label and disconnect the sensor wiring.
