User's Manual

Table Of Contents
DIB-500 R4.1 Component replacement
Replacing fan unit constituents
184 Installation, Operation and Service Manual 90DIB500R41IM_FCC02 99.1
11.5 Replacing fan unit constituents
You can replace the air filter pad or the entire fan unit of the DIB-500 R4.1. The proce-
dures for this are described in the following sections.
| Replacing the air filter pad
| Replacing the fan subrack
11.5.1 Replacing the air filter pad
The fan insert is equipped with an air filter pad that removes dirt and dust particles from
the supply air. The air filter pad is accessible via the front side of the equipment rack.
The air filter pad can be hot-swapped. The fan subrack need not be removed for replac-
ing the air filter pad. The air filter pad holder is made up of a plate and a fastener,
between which the air filter pad is fixed.
The tasks listed in the following table must be performed for the replacement of the air
filter pad.
11.5.1.1 Removing the air filter pad
The air filter pad is fastened in an air filter pad holder that is secured to the fan insert
with two mounting screws.
Table 11.16 describes the positions of the air filter pad holder mounting screws and their
significance.
Table 11.15 Overview of the tasks to be performed (Replacing the air filter pad)
Tasks/work steps Described in
Removing the air filter pad Section 11.5.1.1 on page 184
Installing the air filter pad Section 11.5.1.2 on page 185
Table 11.16 Positions of the air filter pad holder mounting screws
Position Description
Locked
Unlocked