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Removing and Replacing Parts : Dell PowerVault 220S and 221S Systems Service Manual
4. Using a #2 Phillips-head screwdriver, turn the two captive screws counterclockwise to release the power supply and cooling module from the module bay (see
CAUTION:
The power supply and cooling modules are heavy. Use both hands when removing.
5. Holding the handle on the power supply, carefully pull the power supply and cooling module out of the module bay.
NOTICE:
The power-supply handle is provided to ease the task of pulling the power supply free from the bay. Do not use this handle to carry the storage system.
6. Detach the cooling module from the power supply by depressing the tab on the back of the cooling module and sliding the cooling module back and up.
7. Attach the cooling module to a new power supply by performing the reverse of step 6.
8. Carefully slide the new power supply and cooling module into the empty module bay, and push the module all the way to the back of the bay until it is seated in the backplane
connector.
The power supply is seated when its front plate is even with the front plate of the adjacent power supply.
9. Tighten the two captive screws clockwise to secure the new power supply and cooling module in the module bay.
10. Connect the AC power cable to the new power supply and to an electrical outlet.
11. Turn on the on/off switch on the new power supply.
Replacing a Cooling Module
Your system supports two combined power supply and cooling modules. While the system is designed to operate normally with only one functional power supply, both cooling modules
(with two blowers each) must be present for proper cooling. If only one power supply is needed, a power-supply blank must be inserted into the other slot to mount the second cooling
module.
CAUTION:
A power supply and cooling module can be removed from a powered-on system for a maximum period of five minutes. Beyond that time, the system
begins to overheat, and at a critical temperature, shuts down to prevent damage.
The cooling module is securely mounted to the power supply or blank using a hook-and-latch fastening design. This design simplifies the removal and installation of cooling modules,
power supplies, and blanks.
To replace a cooling module, perform the following steps:
1. If you are replacing a cooling module that is attached to a power supply, first turn off the power on power supply using the on/off switch and disconnect the power cable.
2. Using a Phillips-head screwdriver, turn the two captive screws counterclockwise to release the power supply or blank and cooling module (see
Figure 20. Replacing a Cooling Module
file:///C|/Users/rishi_sood/Desktop/220s/en/sm/remove.htm[3/7/2013 12:09:15 PM]
1 cooling module
2 handle
3 captive screws (2)
4 power supply or blank
Figure
18).
Figure
20) from the module bay.