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Summary of Contents for Nederman NCF
- Page 1 Instruction manual Central Fan Original instruction manual INSTRUCTION MANUAL 2018-01-16 144042(04)
- Page 3 Declaration of conformity ....................Figures .................................. English ...................................
- Page 4 Declaration of conformity English Declaration of conformity We, AB Ph. Nederman & Co., declare under our sole responsibility that the Nederman product: NCF (Part No. **, and stated versions of **) to which this declaration relates, is in conformity with all the relevant provisions of the following directives and standards: Directives 2006/42/EC, 2014/30/EU. Standards SS EN ISO 12100. The name and signature at the end of this document, is the person responsible for both the declaration of conformity and the technical file. 14550128, 14550328, 14550728, 14550828, 14550928, 14551028, 14551228, 14551328, 14551428, 14551528 AB Ph. Nederman & Co. Frank Christensen P.O. Box 602 VP Operations EMEA SE-251 06 Helsingborg 2018-01-19 Sweden...
- Page 5 Figures YY connection 230 V Y connection 460 V ∆∆ connection 230 V ∆ connection 460 V U5 V2 U5 V2 U5 W2 V2 W5 U5 V1 V5 W1 ∆ connection 380 V U5 V2 MOUNTING INSTRUCTION Vibration absorber...
- Page 6 Standard outlet position.
- Page 7 Example of lifting NCF fans. Minimum installation distances with intake pipe.
- Page 8 Minimum installation distances with open intake. Delta connection with a single-speed motor. Star connection for single-speed motor.
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Page 9: Table Of Contents
..................3.1.3 Technical data 60 Hz fans, 380 V (metric) ................3.1.4 Technical data 60 Hz fans (imperial) ..................4 Installation ..................................4.1 Delivery check ............................... 4.2 General information ..........................4.2.1 Fan orientation ..........................4.2.2 Standard fan outlet position for NCF fans ................. 4.3 Transport and installation ........................4.3.1 Transport and lifting ........................4.3.2 Storage in a warehouse ....................... 4.3.3 Lifting NCF fans ..........................4.4 Installation ............................... 4.4.1 Minimum distances between components .............. -
Page 10: Preface
Preface Read this manual carefully before installation, use and service of this product. Replace the manual immediately if lost. Nederman reserves the right, without previous notice, to modify and improve its products including documentation. This product is designed to meet the requirements of relevant EC directives. To maintain this status, all installation, maintenance and repair is to be done by qualified personnel using only Nederman original spare parts and accessories. Contact the nearest authorized distributor or Nederman for advice on technical service and obtaining spare parts. If there are any damaged or missing parts when the product is delivered, notify the carrier and the local Nederman representative immediately. Safety This document contains important information that is presented either as a warning, caution or note: WARNING! Risk of personal injury. Warnings indicate a potential hazard to the health and safety of personnel, and how that hazard may be avoided. CAUTION! Risk of equipment damage. Cautions indicate a potential hazard to the product but not to personnel, and how that hazard may be avoided. NOTE! Notes contain other information that is important for personnel. Installation WARNING! Risk of personal injury. The safety measures adopted for using the fan must also be tailored to suit the specific applications for which the fan will be used. The safety measures taken differ depending on the type of fan installation. Therefore, the information in this manual is indispensable for the appropriate and hazard-free use of the fan. -
Page 11: Risks Involved In Incorrect Handling Or Use
Depending on the applications that the client intends to use the fan for in the factory and on the type of installation chosen, the following safety shields must be fitted: • Type A installation: fixed shields at the intake and outlet. • Type B installation: shield fitted only at the outlet. • Type C installation: shield fitted only at the intake. • Type D installation: no shield at either the intake or outlet. The shielding must be constructed to impede access to the parts of the fan that could cause injury. It must be robustly built enough to stand the vibrations and stress caused by the machine and by environmental conditions.It must be securely fixed in position by devices that will not become loosened by vibrations and that cannot be removed without the use of tools. It is, in any case, the person installing the fan who is responsible for ensuring that adequate measures have been taken to prevent accidental contact with the fan’s moving parts. The installer and the user must also take into account other types of risks present, in particular those caused by foreign matter entering the fan and the aspiration of explosive, inflammable or toxic gases at high temperatures. The user must also bear in mind the risks inherent in maintenance work, which must always be carried out in conditions of the utmost safety, with the fan separated from the motor or isolated using suitable equipment. Once the installer and/or user has decided which installation type is to be used and all the above procedures have been applied, the machine can now be considered a “complete machine” as described by machine use regulations. An overall risk evaluation must be made. Risks involved in incorrect handling or use • Never, for any reason whatsoever, disable, remove, modify or render inoperative in any other way any of the safety, protective or control devices of any single component or of the fan itself. •... -
Page 12: Other Risks Related To Fans
be kept in perfect condition at all times and must never be removed or moved from their original position. • When troubleshooting for the cause of any malfunction of the fan, ensure that all precautions described in this manual have been taken to prevent personal injury and/or damage to property. • Remember to tighten every screw, bolt and lock ring of every component subject to adjustment or maintenance. • Before starting the fan, ensure that all safety devices have been correctly installed and are in perfect working order; if the above is not the case, do not start the fan and inform the head of safety or department manager immediately. • The operator must be equipped with Personal protection Equipments in accordance with current legislation; the use of bulky clothing and accessories (ties, loose sleeves, etc.) is prohibited. Other risks related to fans The following is a list of specific hazards related to the fan’s mechanical characteristics. WARNING! Risk of personal injury. A person may receive injuries as a result of: • Becoming caught up between a moving part and a stationary part, for example, between a fan rotor and the fan housing or any other stationary fan component. • Becoming caught up between two moving parts, for example, between a belt and a pulley. • Suction of a part of the body into the fan and subsequent contact with the shaft or rotor. • Contact with a moving part, such as the rotor. •... -
Page 13: Specific Risks Involved In Fan Maintenance
• A fan maintenance program must be drawn up and followed to prevent the mechanical failure or breakage due to wear or insufficient maintenance. Description Technical specifications 3.1.1 Technical data 50 Hz fans (metric) See also figure 2. Table 3-1: Technical data 50 Hz fans (metric) NCF 30/15 NCF 120/15 NCF 30/25 NCF 40/25 NCF 50/25 NCF 80/20 NCF 120/25 NCF 160/25 Capacity (m 1100 - 4400 5700 - 14400... -
Page 14: Technical Data 60 Hz Fans (Metric)
Table 3-2: Technical data 60 Hz fans (metric) NCF 30/15 NCF 30/20 NCF 30/25 NCF 40/25 NCF 50/25 NCF 80/20 NCF 120/15 NCF 120/25 NCF 160/25 Capacity (m 535 - 4180 700 - 4315 830 - 6000 910 - 6550 800 - 5600 1600 - 8540 2600 - 13980 2340 - 11650 2650 - 17140... -
Page 15: Technical Data 60 Hz Fans, 380 V (Metric)
NCF 30/15 NCF 30/20 NCF 30/25 NCF 40/25 NCF 50/25 NCF 80/20 NCF 120/15 NCF 120/25 NCF 160/25 Ambient 30 to +40 30 to +40 30 to +40 30 to +40 30 to +40 30 to +40 30 to +40 30 to +40 -30 ºC to temperature (°C) +40 ºC See Figure 2. 3.1.3 Technical data 60 Hz fans, 380 V (metric) -
Page 16: Installation
See Figure 2. Installation See Figure 3 Delivery check If there are any damaged or missing parts when the product is delivered, notify the carrier and the local Nederman representative immediately. General information 4.2.1 Fan orientation NCF fans can be built in 14 different orientations. The orientation of a fan is expressed as seen from the transmission side. See Figure 4. 4.2.2 Standard fan outlet position for NCF fans The standard NCF fans are delivered as RD0, shown in Figure 5. Other positions can be delivered on request. Please contact your AB Ph. Nederman & Co representative for assistance. Transport and installation 4.3.1 Transport and lifting Lifting and handling the fan may create hazards for any persons in the vicinity; it is therefore important to follow the indications given by AB Ph. Nederman & Co and to use suitable equipment. All operations involving the lifting and handling of the fan must be carried out with the utmost caution, avoiding any knocks that could compromise the functionality or damage the fan components. Use only the specific lifting points on the fan and ensure that the fan’s weight is distributed evenly. -
Page 17: Storage In A Warehouse
It is absolutely forbidden to: • Carry out any maintenance work without first ensuring that the fan rotor is effectively stationary. • Start any maintenance work on the fan (including lubrication) without first disconnecting the fan from the main power supply. • Clean the fan while it is running. • Open any shield or inspection hatch while the fan is running. We recommend that you periodically check that the fan is in a good condition and turn the fan rotor manually approximately once a month to prevent the deformation of its bearings. WARNING! The examples given are generic examples as it is impossible to know in advance every possible configuration for lifting a NCF fan. 4.3.3 Lifting NCF fans NCF fans are equipped with a motor. When lifting these fans, as well as using the specific holes in fan structure, the eyebolt for lifting the motor must also be used (as shown in Figure 6). Installation The fan does not require the preparation of a special machine bed for its installation. A well-leveled concrete surface that can support the weight of the fan is sufficient. NOTE! Always use anti-vibration supports and couplings to prevent the transmission of vibrations while the fan is running. The support base must be perfectly level and flat to prevent torsion effects or misalignment of the supports: if necessary, install metal shims between the machine base and the concrete surface to ensure a perfect fit. Use the factory- fitted anchoring points and take care not to deform the fan structure while tightening bolts. All connecting tubing must be supported separately and must be axially aligned with the fan’s intake and outlet nozzles, to prevent any deformation occurring while tightening the bolts. WARNING! All installation work must only be carried out by qualified and authorised personnel using suitable equipment. -
Page 18: Minimum Distances Between Components
4.4.1 Minimum distances between components If the available space permits, in installations where the intake is connected to a pipe, we recommend fitting a straight length of pipe with a length approximately 2.5 times the diameter of the fan rotor, to guarantee correct air flow into the intake. See Figure 7. With installations with an open air intake, we recommend leaving a distance equal to approximately 1.5 times the diameter of the fan rotor between the fan intake and the nearest wall or machine. See Figure 8. 4.4.2 Connections to pipes Connections between the fan and pipes must be made ensuring that all components are correctly aligned and that there are no obstructions in the tubing caused by gaskets or flexible parts. The weight of the tubing must not be supported by the fan and care must be taken not to deform any part of the fan during tightening of the connections to the pipes. NOTE! We do NOT recommend installations with an open air intake. 4.4.3 Electrical connections The fan’s power supply line must have a sufficiently high power rating. Connection to the main power grid must only be carried out by qualified personnel. Also, the client is responsible for the entire electrical system up to motor terminal board. We remind you of the importance of installing a safe connection to earth for the fan. The earth connection system must comply with legislation in effect in the country of installation and must be periodically checked by qualified personnel. Make the connection to earth before any other connection. Check that the connection layout is suited to the mains power voltage. Usually, standard electric motors can run in both directions indifferently. To invert the direction of rotation, simply swap over any two power cables directly on the terminal board. The client must also install an electrical disconnecting device near the fan so that maintenance personnel can have direct control over the power supply to the fan. -
Page 19: Checks To Be Made Before And After Starting
Section 4.4.3. Electrical connections). You may now start the fan. With centrifugal fans, close off the air intake partially to reduce the power peak at start-up and the motor starting time. 4.5.2 Checks to be carried out with the fan running Check that the power absorption does not exceed the value indicated on the motor identification plate, if it does; stop the fan immediately and contact the manufacturer. The fan must run without excessive vibration and noise. Check, with the fan at rest and at an outside air temperature of 20°C, that the bearings do not exceed the maximum operating temperature (maximum bearing temperature 70°C). During the first few hours of operation, it is normal for the bearings to reach slightly higher temperatures, as long as they later stabilise at a lower value. In the event of overheating of the bearings, contact the Nederman technical assistance department. After 3 - 4 operating hours, with the fan at rest and disconnected from the power supply, check again that all bolts are correctly tightened, the bearing temperature. Malfunctions anf causes Table 4-1: Malfunctions and causes Problem Reason Cause • Power absorption much Insufficient air flow Rotational speed too low. lower than nominal value •... -
Page 20: Maintenance
Malfunction of the bearings due to unbalanced rotor. • Excessive noise Contact between moving and stationary components. • Fluctuating fan operation. • Electromagnetic fault in motor. • Orifices or sharp angles in tubing. Maintenance CAUTION! Risk of equipment damage. Use only Nederman original spare parts and accessories. Read Chapter 2 Safety before carrying out maintenance. Installation, repair and maintenance work is to be carried out by qualified personnel using only original Nederman spare parts. Contact your nearest authorized distributor or Nederman for advice on technical service. CAUTION! Risk of equipment damage. During any maintenance procedure, the fan must be disconnected and insulated from the electric power supply. Checking and cleaning parts in contact with the fluid The fan rotor should be cleaned regularly to prevent vibration caused by dust accumulating on the blades during operation. If the fan is used to pump... -
Page 21: Disassembly
NOTE! An integrated maintenance program is necessary for normal and correct operation of the fan, and also ensures greater safety for the operator. NOTE! Regular cleaning and maintenance together with lubrication, are vital for ensuring correct operation and greater durability of the fan. Disassembly WARNING! Risk of personal injury! All the disassembly and reassembly operations described below must only be carried out by qualified and authorised personnel. For no reason whatsoever must the operator or factory personnel carry out these operations. CAUTION! All the disassembly and reassembly work must be carried out with the following conditions: • You must be absolutely certain that the fan is completely stationary (fan rotor at rest); disconnect the electrical power at the main panel with the switch, lock the switch with a padlock and hand the key to the head of maintenance. • The working environment must be equipped with every tool necessary and must be free of any hazards. • Every piece to be refitted must be thoroughly cleaned, degreased and lubricated as necesasary before refitting. 5.2.1 Intake nozzles Undo the nozzle securing nuts from the fan housing. Slide out the nozzle. -
Page 22: Technical Enclosures
12 x 1,75 84,3 84,3 14 x 2 16 x 2 18 x 2,5 20 x 2,5 22 x 2,5 24 x 3 1060 1240 27 x 3 1100 1570 1840 30 x 3,5 1500 2130 2500 Spare parts CAUTION! Risk of equipment damage. Use only Nederman original spare parts and accessories. Contact your nearest authorized distributor or Nederman for advice on technical service or if you require help with spare parts. See also www.nederman.com. Ordering spare parts When ordering spare parts always state the following: • Part number and control number (see the product identification plate). • Detail number and name of the spare part (see www.nederman.com). • Quantity of the parts required. -
Page 23: Recycling
Recycling The product has been designed for component materials to be recycled. Its different material types must be handled according to relevant local regulations. Contact the distributor or Nederman if uncertainties arise when scrapping the product at the end of its service life. - Page 25 www.nederman.com...
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