Replacement Of Fan Units; Case Of Gr4000-80E1, Gr4000-80E2, Gr4000-160E1 And Gr4000-160E2 - Hitachi GR4000 Series Installation Manual

5.3

Replacement of Fan Units

5.3.1 Case of GR4000-80E1, GR4000-80E2, GR4000-160E1 and GR4000-160E2

The replacement of a fan unit for GR4000-80E1, GR4000-80E2, GR4000-160E1, and
GR4000-160E2 is done in the same way. You can replace a fan unit without powering
off the device.
WARNING: THE REPLACEMENT OF A FAN UNIT SHOULD BE DONE BY A TRAINED
!
(1) Detachment of a fan unit
Step 1
replacement, and remove this front panel from the fan unit.
Front panel
Screws
Figure 5.3-1 Front panel removed from a fan unit
520-10-014-20X
ENGINEER OR A QUALIFIED MAINTENANCE PERSON.
Caution: When replacing a fan unit while powered on, it must be done within one
minute after being detached. If replacement takes more than one minute, the
temperature inside the device will start to rise and could affect other
components.
Loosen the screws of a front panel attached to the fan unit targeted for
GR4000 Installation Guide Version 1.00 - Preliminary
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