EN
Installation, operating and maintenance instructions
DVN...D.F4
Servicing, troubleshooting and cleaning may only be performed by specialised personnel in accordance with this ins-
tallation and operating manual and the regulations in force.
Our devices require little maintenance when operated properly.
The 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.
– The impeller should be cleaned with a cloth or brush.
– Never use a high-pressure cleaner.
– Balancing clips must not be moved or removed.
– The 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 de-
scribed in section 12 and 13.
14.2. Cleaning and care
15. LIFETIME AND DISPOSAL
15.2. Decommissioning and disposal
When disassembling, parts under voltage are exposed, which can lead to electric shock when touched.
Before dismantling, disconnect the fan from all poles of the mains and secure against being switched
on again!
Components and components of the device that have reached their lifetime, e.g. due to wear, corrosion, mechanical
stress, fatigue and/or all other, not directly recognizable effects, must be disposed of professionally and properly after
disassembly in acc The same applies to excipients in use such as oils and fats or other substances. The conscious or un-
conscious reuse of used components such as e.g. impellers, rolling bearings, motors. etc. can lead to a risk to persons,
the environment as well as machinery and equipment. The applicable local operating regulations must be observed and
applied.
15.1. Product life
15.3. Spare parts (motor + impeller)
Only original spare parts may be used.
The repair may only be carried out by personnel trained and authorized by our company.
The motors are equipped with maintenance-free, permanently lubricated ball bearings. Under normal operating condi-
tions, the expected lifetime is about 30,000 operating hours.
The information given here depends strongly on the respective field of application as well as the environmental condi-
tions. We recommend replacing these roof fans after reaching about 30,000 operating hours or 5 years.
