9 Maintenance and repair
Caution
Risk of injury from incorrect work. Maintenance work must be carried out by
trained personnel.
9.1 Safety
Before performing any work on the unit:
■
Turn the main switch on the unit to the ‘Off’ position and secure it against
being switched back on.
Caution
Danger from electric current. The unit controller and the service socket
are still live.
■
Wait at least 3 minutes after switching the unit off.
Caution
The use of condensers can pose a danger of fatal injury from directly
touching live parts even after the unit is switched off. Only open the
access doors after waiting 3 minutes.
■
Observe the accident prevention regulations.
■
Observe the particular dangers involved when working on electrical systems.
■
When working in the unit, take precautions against unprotected, sharp metal
edges.
■
Immediately replace damaged or removed informational and warning signs.
■
Following maintenance work, professionally reassemble all dismantled protec-
tive devices.
■
Replacement parts must comply with the technical requirements of the unit
manufacturer. The manufacturer recommends the use of original spare parts.
RoofVent
®
RH | RC | RHC | R
Maintenance and repair
Art.No. 4 214 745-en-04 / Page
44
