Removal and replacement procedures 61
Replacing the differential pressure sensor
1.
Replace the differential pressure sensor (1), and then secure the differential pressure sensor with two
bolts (2).
2.
Insert the pressure sensor tubes into the differential pressure sensor according to the connection
locations you labeled during the removal procedure.
3.
Replace the sensor wires according to the connection locations you labeled during the removal
procedure, and then tighten the screws to secure the sensor wires.
EPO temperature sensors
Two EPO thermisters are located in the hot aisle, one in cooling zone 1 and one in cooling zone 3.
You need scissors to remove and replace the EPO temperature sensors.
Removing the EPO temperature sensors
1.
Cut the tie wraps securing the thermister (1).
2.
Disconnect the thermister coupling to remove the thermister (2).
