en-26
en
6
. . Service
6.1
Safety instructions
Warning:
w
Servicing activities may only be carried out by
personnel who are technically qualified to do
so.
Warning:
w
Before you begin: read the safety instructions.
See also:
"Safety instructions" on page 8
6.2
Replacing a fan box
Warning:
w
Shut off the mains supply.
Note:
n
In order to remove one of the outermost fan boxes,
the adjacent fan box must first be removed.
1. Open the unit:
- Remove the inlet grille
1
.
- Remove the discharge grille
2
.
- Remove the base plates
3
.
2. Disconnect the fan box that is to be removed:
- Remove the cover from the terminal box
4
.
- Disconnect the wiring
