User's Manual

Table Of Contents
Installation, Operation and Service Manual 90DIB500R41IM_FCC02 99.1 185
DIB-500 R4.1 Component replacement
Replacing fan unit constituents
Proceed as follows to remove the air filter pad:
Carry out the following steps:
1. Turn the air filter pad holder mounting screws by 90° to loosen them, refer to Figure
11.4.
Figure 11.4 Air filter pad holder mounting screws
2. Pull the air filter pad holder out to the front.
3. Remove the fastener of the air filter pad holder by pressing the fastener together
and taking it out of the holder.
Figure 11.5 Air filter pad fastener (top view)
4. Remove the air filter pad.
You have successfully removed the air filter pad.
11.5.1.2 Installing the air filter pad
To install the air filter pad, the air filter pad holder must be slid back into the fan insert
and fastened.
Proceed as follows to install the air filter pad:
Preparation:
You need the air filter pad and the fastener loosened during the removal.