Fan Unit Replacement; Removal Of The Old Fan; Installation Of The New Fan - NEC iPasolink 200 Manual

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4.2 FAN Unit Replacement

When replacing the FAN unit used in the IDU, perform the following procedures.
Notes

(1) Removal of the old FAN

(2) Installation of the new FAN

Perform the steps in order of 1-2-3 shown after the following figure.
Step 1
NWD-107460-02E
Submission Prohibited
NEC Internal Use Only
1. NEC recommends replacement of the FAN unit approximately every
three years, even if the FAN unit operates normally.
2. In the case FAN alarm occurred, replace the FAN unit immediately.
3. The FAN unit can be replaced under power-on condition
(hot-swappable).
Perform the steps in order of 3-2-1 shown after the following figure.
IDU MOUNTING
Step 1
Installation