Grundfos UPE Serie Instrucciones De Instalación Y Funcionamiento página 11

6. Replacement of control box fan
Dismantling
Warning
Never make any connections in the pump control box unless
the power supply has been switched off for at least 5 minutes.
Make sure that voltage supplies from other external systems
have been switched off as well.
Always use an antistatic service kit (Grundfos ESD,
protection set prod. no. 96884939) when dismantling and
Caution
assembling the terminal box as the electronics are sensitive
to static electricity. Connect the antistatic service kit to the
connection terminal of the protective earth lead (PE terminal).
1. Switch off the power supply to the pump, and make sure that it cannot be
accidentally switched on again during replacement.
2. Remove the four screws securing the control box cover. Remove the
cover. See fig. 2.
3. Remove the fan from the heat sink in the control box. See fig. 19.
4. Disconnect the fan plug from the fan socket in the PCB. See fig. 19.
5. Dispose of the faulty fan according to section 10. Disposal.
Assembly
1. Fit the plug of the new fan into the socket in the PCB. See fig. 19.
2. Mount the new fan. See fig. 19.
The arrows marked on the side of the fan shows the direction
Note
of rotation and the direction of the cooling air. See fig. 20.
3. Mount the cover, fit and tighten the four screws. See fig. 2.
The pump is now ready for operation. See section 9. Start-up.
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