Use and Care Manual

16 | EM...M
EN
Installation, operating and maintenance instructions
Our devices require little maintenance when operated properly.
e following work should be performed at regular intervals, in accordance with health and safety regulations:
■ Check the operation of the control system and safety devices.
■ Check electrical connections and wiring for damage.
■ Remove any dirt from the fan impeller or impellers and from inside the fan housing in order to prevent any unba-
lance or reduction in output.
– Do not use aggressive or easily flammable products for cleaning (impellers/housing).
–
Preferably only water (not flowing water) or mild soapsuds should be used.
– e impeller should be cleaned with a cloth or brush.
– Never use a high-pressure cleaner.
– Balancing clips must not be moved or removed.
– e impeller and fittings must not be damaged in any way.
Before putting the unit back into operation after maintenance and servicing work, carry out a visual inspection as
described in section 11. and 12.
13.1. Checklist Maintenance and Service
Description check interval
Triggering device monthly
■ Fan
Check fan for function and operational readiness (test run at least 15 minutes) every 6 months
Check fan for function and operational readiness (test run at least 1 hour) yearly
Check for dirt, damage, corrosion and fastening every 6 months
Function-preserving cleaning every 6 months
Check impeller rotation direction yearly
Check flexible connections for leaks yearly
Check impeller for imbalance yearly
Check protective device for function yearly
■ Motor
Check externally for dirt, damage, corrosion and fastening every 6 months
Function-preserving cleaning yearly
Check bearing for noise yearly
Check terminals for tight fit yearly
Measure the voltage yearly
14. LIFETIME AND DISPOSAL
14.1. Product life
e motors are equipped with maintenance-free, permanently lubricated ball bearings. Under normal operating condi-
tions, the expected lifetime is about 30,000 operating hours.
e information given here depends strongly on the respective field of application as well as the environmental condi-
tions. We recommend replacing these fans after reaching about 30,000 operating hours or 5 years.