Use and Care Manual

e use of a fault current protection switch is not mandatory. If a fault current protection switch is used, only AC/DC

sensitive RCD protective devices (type B or B+) are permitted.

11.3. Fault current protection switch

Even when the device is switched oﬀ, voltage is applied to terminals and connections. Do not touch the device

for 5 minutes after all-pole disconnection from the mains.

12. COMMISSIONING

Commissioning by trained technical personnel may only be performed after any risk has been ruled out. e

following checks should be performed in accordance with the installation and operating manual and the regu-

lations in force:

■ Correctly sealed installation of the unit and duct system.

■ Check the duct system, unit and medium lines, if present, remove any foreign bodies if necessary.

■ e intake opening and inﬂow into the unit must be clear.

■ Check all mechanical and electrical protection measures (e.g. earthing).

■ Voltage, frequency and type of current must correspond with the rating plate.

Servicing, troubleshooting and cleaning may only be performed by specialised personnel in accordance

with this installation and operating manual and the regulations in force.

■ Make sure that no connections or components are loosened unless the device is disconnected from

the mains. Make sure that the equipment cannot be switched back on again.

■ Individual components must not be interchanged. For example, the components intended for one pro-

duct may not be used for other products.

■ e regular maintenance and care of our devices is designed to ensure proper function, value retention

and avoidance of damage. Keep a maintenance log.

■ Perform the speciﬁed maintenance on the unit at the speciﬁed intervals.

13. MAINTENANCE AND CLEANING

During operation, electric motors heat up. Under certain circumstances (excessively high ambient or ﬂuid temperatu-

res, heavy contamination, etc.), the motor temperature may exceed the safety limit of the electrically isolated parts.

In order to avoid engine damage, various types of temperature monitoring are possible, of which at least one must be

installed on site. (Exception: fans with thermal contacts integrated in the motor current)

Applies for versions with led out thermal contact: No warranty in case of a not connected ermal Contact. Damages

caused by overheating will not be considered.

11.2. ermal motor protection