Dell PowerSwitch S4048-ON - Fan module installation; Fan module replacement

Fan module installation
The fan modules in the S4048–ON are field replaceable.
Module slot 1 is on the left side of the chassis, module slot 2 is in the middle of the chassis, and module slot 3 is on the right side
of the chassis.
CAUTION: DO NOT mix airflow directions. All fans must use the same airflow direction—reverse or normal.
1. Take the fan module out of the shipping box.
2. Use the grab handle to slide the module into the bay.
Fan module replacement
CAUTION: Complete steps 2 and 3 within one minute, or the switch turns off.
1. Use the red-marked grab handle to slide the fan module out of the bay.
2. Use the red-marked grab handle on the replacement module to slide it into the bay.
3. Ensure that the module is secure.
Fans 31