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Changing The Emc Protection Class From C2 To C4 - Honeywell HVAC232 Series Applications Manual

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3.6
Changing the EMC protection class from
C2 to C4
The EMC protection class of MI1-3 frequency converters can be changed from
class C2 to class C4 by removing the EMC-capacitor disconnecting screw, see
figure below. MI4 & 5 can also be changed by removing the EMC jumpers.
NOTE:
Do not attempt to change the EMC level back to class C2. Even if
the procedure above is reversed, the frequency converter will no
longer fulfil the EMC requirements of class C2!
Fig. 16. EMC disconnecting screw, MI1 - MI3
Fig. 17. EMC jumpers, MI4
Application manual HVAC232/402 | Document 27-652 | Issue ENG06 | 2019-08-07
Fig. 18. EMC jumpers, MI5
Fig. 19. Jumpers
• Remove the main cover and locate the two jumpers.
• Disconnect the RFI-filters from ground by lifting the jumpers up from
their default positions. See Figure 19.
22

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