Novenco ZerAx axial fan types AZL-AZN-AZW
– Installation and maintenance
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3. Storage
Correct storage conditions are important for the
function and durability of the fans.
4. Installation
4.1 Before installation
Complete the below checklist to ensure a safe work environment and fan functionality. See also
the checklists in the appendices.
Before installation
•
Unpack the fan with care.
•
Check that the rotor rotates freely in the fan casing with equal blade tip distances to the
casing around the circumference.
•
Outdoor installations:
Make sure the installation location is sheltered. Fans, motors and
frequency converters must be protected from rain and water that drips.
•
Ground the fan before installation to avoid static electricity. For example, by assembly on
non-conductive vibration dampers and foundations.
•
Clear the fan installation location to ensure free and unimpeded airflows for the inlet and
outlet. The free area in front of the fan inlet must be at least 1x the fan diameter, D, or ½D
for optimal or reduced performance, respectively. Optimal airflow from all sides removes
risk of stall, gives best performance and keeps sound levels down.
•
Secure the installation to at least IP20, i.e. protect people and surroundings against solid
Conditions
Specifications
Comments
Outdoor
One month
• Packaging must be intact
Indoor or sheltered
Max. six months
• For unprotected fans with no or broken packaging
• Ventilated location
• No condensation
Prolonged
Max. two years
• Indoor
• Remove packaging
• Ventilated location
• No condensation
• Turn rotor 20 times every six months
• Add additional anti-corrosive coating on motor shaft
• Change motor ball bearings after two years of storage
Vibrations
No
• Location must be vibration free
Temperatures
-20 to 50 °C
• Constant temperature, preferably 20 °C
• Ventilated
• No condensation
Humidity
Below 70%
• Avoid condensation
• Exceedance requires airtight packaging of complete fan and use of
a moisture absorbent agent such as silica gel
Table 2.
Storage recommendations
Damages due to incorrect storage
void the warranty.
