Emerson MPR25, MPR15 Series Procedure 21 - Fan replacement continued, Step, cooling application

Maintenance 77

Procedure 21 - Fan replacement ( continued )

Step Action

4Remove the four retaining screws which hold the chassis plate, fan and fan grill together (see Figure 27).

5Place the mounting clips on the replacement fan (if it is not so equipped).

6Mount the replacement fan in the same orientation as the old one, ensuring the wire is connected to the fan in the same manner. Ensure the orientation of the fins is such that the air is blown outwards when the fan is operated.

7Secure the fan, fan grill and chassis plate with the four retaining screws.

8Reconnect the fan connector and mount the fan assembly in the unit with the five mounting screws

9Plug the unit back in and power it up. Holding a piece of paper at the front the unit will confirm that the air is pulled inwards from the front.

10Listen carefully for any noise from the fan. It should run free. Verify that the fan alarm is OFF.

–end–

CAUTION

Verify and ensure that the fan spins freely, without interference.

CAUTION

Do not run the rectifier without a fully operational fan or with a fan other than the specified replacement for this

cooling application.

25A Switch Mode Rectifier NT5C06B / C Installation and User Manual