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13. Quality management
Novenco Building & Industry A/S is ISO 9001 and 14001 certified. All fans are inspected and
tested in the production.
14. Warranty
Novenco Building & Industry A/S provides the statutory 12 months warranty from the factory,
which covers materials and defects from the manufacture. Wear parts are not covered.
Extended warranty can be agreed upon.
14.1 Rotor weldings
First generation ZerAx fans have the rotor blades
welded onto the hubs. The weldings may look uneven
or have small pores, which is due to the use of robot-
welding. The production method is verified by high-
speed tests, which confirm the maximum allowable
speed with a large safety margin. The appearance of the
weldings has no impact on rotor strength and should
not be reported as a quality issue. It will not be accepted
as a basis for a warranty case.
15. Spare parts
Contact Novenco for information about and ordering of spare parts.
Novenco ZerAx axial fan types AZL-AZN-AZW – Installation and maintenance
Figure 11.Rotor weldings
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