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Summary of Contents for NOVENCO ZERAX AZL-AZN-AZW
- Page 1 Pure competence in air. NOVENCO® ZERAX® FAN TYPES AZL-AZN-AZW INSTALLATION AND MAINTENANCE 922950-0 ENGLISH...
- Page 2 Important This document is provided ’as is’. Novenco Building & Industry A/S reserves the right to changes without further notice due to continuous product development. The fans are designed for continuous operation. The following kinds of operation may cause fatigue break in the rotors and endanger people.
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Page 3: Table Of Contents
Checklists ....29 8. Inspection and test ..Novenco ZerAx axial fan types AZL-AZN-AZW – Installation and maintenance 3 of 30... -
Page 4: Application
2.2 Weights The total weight depends on the fan size, casing thickness, motor size and accessories. Refer to the technical fan specifications from Novenco AirBox program for further information and weights of specific fan solutions. Novenco ZerAx axial fan types AZL-AZN-AZW – Installation and maintenance... -
Page 5: Design Conditions
The AZL-AZN-AZW fans are designed for operation at standard temperatures from -20 to +50 °C. With reduced fan speed and increased blade clearance the temperature range can be extended from -40 to +120 °C. Contact Novenco for further information. 2.4 Transport and lifting... -
Page 6: Storage
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 Novenco ZerAx axial fan types AZL-AZN-AZW – Installation and maintenance 6 of 30... -
Page 7: Set Up Fans
Also, install wire guards on fans where there is direct access to the rotor. Wire guards from Novenco can be installed as close as 120 mm before and after the rotor. See section “4.7 Duct connection” for minimum distances for undisturbed airflow. -
Page 8: Support Frames
Type 4 - Vertical frame for AZL and AZN with and suited for incorporation in AHUs (left) and without vibration dampers Figure 4. Novenco ZerAx support frames Novenco ZerAx axial fan types AZL-AZN-AZW – Installation and maintenance 8 of 30... -
Page 9: Vibration Dampers
Allow for free areas to facilitate assembly and disassembly as well as maintenance. Novenco ZerAx axial fan types AZL-AZN-AZW – Installation and maintenance 9 of 30... - Page 10 Table 3. Max. allowable speed at 20 °C 1. Fan speeds depend on the installation space. 2. Fans with Ø160 hubs can run at maximum RPMs irrespective of the installation conditions. Novenco ZerAx axial fan types AZL-AZN-AZW – Installation and maintenance 10 of 30...
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Page 11: Electrical Connection
EU standard for electromagnetic compatibility (EMC). Frequency converters must be installed in accordance to the manufacturer’s installation documentation. Refer also to the Novenco document “Configuration of frequency converters for Novenco fans”. Shield and connect the fans electrically to ground to eliminate interference and protect the motor bearings and windings. -
Page 12: Start Of Operation
5. Start of operation Fans fitted with frequency converters must have the control unit set up, before start of operation. Refer to the Novenco document “Configuration of frequency converters for Novenco fans”. Perform the below steps every time the fans have been stopped. -
Page 13: Motors With Y/-Start
The measuring pipes are optional accessories and fitted close to the fan inlet. The below formula gives the air volume in m /s. Multiply by 3,600 to convert to m /h, or by Novenco ZerAx axial fan types AZL-AZN-AZW – Installation and maintenance 13 of 30... -
Page 14: Maintenance
16. Please note that fans with permanent magnet motors are lubricated for life. 3.Intervals for cleaning depend on the operating conditions and environment. See section “6.2 Cleaning” on page Novenco ZerAx axial fan types AZL-AZN-AZW – Installation and maintenance 14 of 30... -
Page 15: Before Maintenance
Repair and maintenance of Novenco fans must be carried out by authorised personnel and in accordance with Novenco instructions. Keep records signed by the competent personnel for all services, tests and changes performed. 6.1 Before maintenance Switch off the power and disconnect the motor cable in the terminal box, before beginning work on the rotor and motor. -
Page 16: Motors
For fans with motor sizes 160 to 200, results in failure. nipples on the outer fan casings are optional. Refer to the motor nameplates for recommended grease type, amount and interval. Novenco ZerAx axial fan types AZL-AZN-AZW – Installation and maintenance 16 of 30... -
Page 17: Motor Removal
5). See also figure 13. “Mounting of puller in Ø350 hubs with hub clips” on page 27 6. Disconnect the motor cable from the motor. 7. Support the motor. See the technical fan specifications from the AirBox program. Novenco ZerAx axial fan types AZL-AZN-AZW – Installation and maintenance 17 of 30... -
Page 18: Mounting Of Motor
Table 7. Blade tip clearances at standard temperatures 11. Reconnect any ducts. Follow the procedure in section “5. Start of operation” to start the fan. Novenco ZerAx axial fan types AZL-AZN-AZW – Installation and maintenance 18 of 30... -
Page 19: Blade Angles
The fan rotor blade angles are the result of careful calculations to achieve a specific and sometimes delicate point of operation. The mount on the hub and balancing are therefore closely related to the angles and cannot be changed. Please contact Novenco for further information. -
Page 20: Sound
10. Safety The installation must be in accordance to Novenco’s, the current and the local safety regulations. At a minimum these include EN 13850. It is recommended to review and revise safety procedures regularly. -
Page 21: Quality Management
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. -
Page 22: Classifications And Certifications
17. Product lifetime The fans, excluding the motors and frequency converters, have product lifetimes of 20 years. Storage, installation and maintenance must be in accordance with Novenco’s instructions, which include this installation and maintenance guide as well as any referenced documentation and written agreements. -
Page 23: Declaration Of Conformity
• Ecodesign for ErP 2010 and • EMC 2016 Energy Information 2011 • Marine equipment 2016 • Electrical Equipment (Safety) 2016 • Supply of Machinery (Safety) 2008 Novenco ZerAx axial fan types AZL-AZN-AZW – Installation and maintenance 23 of 30... - Page 24 • BS/DS/EN 61800-3:2018 • ISO 13348:2007, class AN3 This declaration is valid, provided that the installation and maintenance instructions are followed. Changes to the product without prior consultation with Novenco Building & Industry A/S invalidates the declaration and voids warranty. UK representative Phone: +44 800 681 60 09 Novenco Building &...
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Page 25: Appendices
1600 1800 2000 Table 8. Max. fan casing weights, excl. motors and accessories [kg] 1.Weights of AZL fans are the top values in cells with two values. Novenco ZerAx axial fan types AZL-AZN-AZW – Installation and maintenance 25 of 30... -
Page 26: Fan Assembly
Motor bolts (7b) Centre bolt (3) 1. Hub covers are optional and available for hub sizes Ø350 and Ø560. Table 9. Tightening torques Figure 12.Fan disassembly and assembly Novenco ZerAx axial fan types AZL-AZN-AZW – Installation and maintenance 26 of 30... -
Page 27: Appendix - C. How To Mount Puller
Appendix - C. How to mount puller 1. Remove hub cap 2. Remove hub clip – puller – 3. Mount puller in hub Figure 13.Mounting of puller in Ø350 hubs with hub clips Novenco ZerAx axial fan types AZL-AZN-AZW – Installation and maintenance 27 of 30... -
Page 28: Appendix - D. Wiring - Six-Leads Motor - No Frequency Converter
Figure 17.Terminal box star-connection Appendix - F. Wiring – three-leads motor – with frequency converter Terminal box Frequency Circuit breaker converter (Customer part) Figure 18.Frequency converter connection for all motors Novenco ZerAx axial fan types AZL-AZN-AZW – Installation and maintenance 28 of 30... -
Page 29: Checklists
• Motor bearings defective • Rotor imbalance • Rotor worn or damaged • Loose components • Wrong rotor blade pitch angles • Fan operates in stalling area Novenco ZerAx axial fan types AZL-AZN-AZW – Installation and maintenance 29 of 30... - Page 30 Pure competence in air. last page - count...
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