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Summary of Contents for KNF N922STE
- Page 1 KNF 318667-318664 05/21 N922S_E IP54 TRANSLATION OF ORIGINAL OPERATING AND INSTALLATION INSTRUCTION ENGLISH DIAPHRAGM PUMP Notice! Before operating the pump and accessories, read and observe the operating and installation instructions as well as the safety information!
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Page 2: Table Of Contents
Table of contents KNF Neuberger GmbH Alter Weg 3 1 About this document ............ 3 79112 Freiburg 2 Use ................... 6 Germany 3 Safety................ 7 Tel. +49 (0)7664/5909-0 4 Technical data .............. 9 Fax. +49 (0)7664/5909-99 5 Design and function ............ 11 6 Transport ................ -
Page 3: About This Document
à In the event of uncertainties with regard to the content of the operating and installation instructions, please contact the manufacturer (contact data: see www.knf.com). Please have the type and serial number of the pump ready. à The individual chapters of these operating and installation instructions make reference to the operating instructions of the motor manufacturer for capacitor and three-phase motors. - Page 4 An activity to be carried out is specified here (a step). 1. The first step of an activity to be carried out is specified here. Follow other sequentially numbered steps. This symbol indicates important information. Translation of Original Operating and Installation Instruction, english, KNF 318667-318664 05/21...
- Page 5 Warning of hot surface Warning of electrical voltage Warning of poisonous substances Warning of hand injuries through crushing Observe the operating instructions General mandatory sign Environmentally conscious disposal Tab.2 Explanations of pictograms Translation of Original Operating and Installation Instruction, english, KNF 318667-318664 05/21...
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Page 6: Use
This function can be made possible on a project basis following consulta- tion with KNF Customer Service. Pumps with capacitor motor are not intended for operation with a fre- quency converter. Translation of Original Operating and Installation Instruction, english, KNF 318667-318664 05/21... -
Page 7: Safety
Where applicable, also take into account external energy sources (such as radiation sources) that could additionally heat the medium. In case of doubt, contact KNF Customer Service. Translation of Original Operating and Installation Instruction, english, KNF 318667-318664 05/21... - Page 8 EN 60034-30-1 (only pumps with three-phase motor) § EN 60034-1 Customer service and repairs The pumps are maintenance-free. However, KNF recommends periodic in- spection of the pump for obvious changes in noise or vibration. Only have repairs to the pumps performed by qualified KNF personnel.
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Page 9: Technical Data
See motor type plate class Voltage tolerance See operating instructions for the motor Tab.5 Electrical parameters N922S_E IP54 *For further voltage and frequency variants, see pump nameplate **See pump nameplate Translation of Original Operating and Installation Instruction, english, KNF 318667-318664 05/21... - Page 10 A leak test can be used to determine whether the original gas tightness has been re-achieved. Weight Parameter Value Value N922STE N922SPE Weight [kg] Translation of Original Operating and Installation Instruction, english, KNF 318667-318664 05/21...
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Page 11: Design And Function
5 Design and function Design 1 Pump inlet 2 Pump outlet 3 Pump head 4 Motor 5 Capacitor (only capaci- tor motor) 6 Electrical terminal box Fig.1 Diaphragm pump N922S_E Translation of Original Operating and Installation Instruction, english, KNF 318667-318664 05/21... - Page 12 (2). In the upwards stroke, the diaphragm presses the medium out of the pump head via the outlet valve (1). The pumping chamber (3) is separated from the pump drive by the diaphragm. Translation of Original Operating and Installation Instruction, english, KNF 318667-318664 05/21...
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Page 13: Transport
Permissible humidity (non-condens- 30 to 85 ing) [%] Tab.8 Transport parameters Prior to commissioning, make sure that the pump has reached the ambient temperature (4 Techni- cal data). NOTICE Translation of Original Operating and Installation Instruction, english, KNF 318667-318664 05/21... -
Page 14: Installation And Connection
Store the pump at the same ambient temperature as the installation to mitigate condensation. à Mounting dimensions For mounting dimensions, see the following figures: Fig.3 Mounting dimensions N922S_E (three-phase AC motor) Translation of Original Operating and Installation Instruction, english, KNF 318667-318664 05/21... - Page 15 Mount the pump at the highest point in the system to prevent conden- sate from collecting in the pump head. à Protect the pump from dust. à Protect the pump from vibration and impact. Translation of Original Operating and Installation Instruction, english, KNF 318667-318664 05/21...
- Page 16 2. Remove the housing cover (2). The eccentric crank drive (3) and the four motor fastening screws (4) become visible. 3. Loosen and remove the four motor fastening screws (4). Translation of Original Operating and Installation Instruction, english, KNF 318667-318664 05/21...
- Page 17 5. Screw the four motor fastening screws (4) back in and tighten them (tight- ening torque: 6 Nm). 6. Position the housing cover (1) and screw down with the four Allen screws (2) (tightening torque: 15 Ncm). Translation of Original Operating and Installation Instruction, english, KNF 318667-318664 05/21...
- Page 18 (see 7.1 Installing the pump and the motor operating instructions). 5. Connect the electrical power cables in accordance with Fig. 7 and Fig. 8 (three-phase motor) or Fig. 9 (capacitor motor) (cf. motor oper- ating instructions). Translation of Original Operating and Installation Instruction, english, KNF 318667-318664 05/21...
- Page 19 Diaphragm pump N922S_E IP54 Installation and connection Fig.7 Star connection (three-phase motor; high voltage) Fig.8 Δ-connection (three-phase motor; low voltage) Translation of Original Operating and Installation Instruction, english, KNF 318667-318664 05/21...
- Page 20 Installation and connection Diaphragm pump N922S_E IP54 Fig.9 Electrical connection (capacitor motor) 6. Close the terminal box cover again. Translation of Original Operating and Installation Instruction, english, KNF 318667-318664 05/21...
- Page 21 3. Lay the suction line and pressure line with a descent so that no con- densate can run into the pump. Pneumatic noises can be reduced or dissipated by using a silencer (see Chapter 11.2 Accessories). Translation of Original Operating and Installation Instruction, english, KNF 318667-318664 05/21...
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Page 22: Operation
The pumps are built-in devices. Before they are commissioned, it must be ensured that the machines or systems into which the pumps are in- stalled comply with the relevant provisions. Translation of Original Operating and Installation Instruction, english, KNF 318667-318664 05/21... - Page 23 à KNF recommends: When pumping corrosive media, flush the pump before switching off (see Chapter 9.2.1 Flushing the pump) to extend the service life of the diaphragm. Translation of Original Operating and Installation Instruction, english, KNF 318667-318664 05/21...
- Page 24 Recommissioning Before recommissioning, observe the applicable standards, guidelines, regulations and technical standards at the electrical connection. à Inspecting the pump Inspect the pump periodically for external damage or leakage. Translation of Original Operating and Installation Instruction, english, KNF 318667-318664 05/21...
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Page 25: Servicing
(if necessary for safety reasons: with an inert gas) to extend the service life of the diaphragm. à Discharge the media safely. Translation of Original Operating and Installation Instruction, english, KNF 318667-318664 05/21... - Page 26 Spare parts Spare part* Position designation** Quantity Diaphragm Reed valve Valve limiter O-ring (10) O-ring (11) Slotted screw Tab.11 *According to spare parts list, Chapter 11.1 Spare parts Fig. 11 **According to Translation of Original Operating and Installation Instruction, english, KNF 318667-318664 05/21...
- Page 27 Loosen the four screws (4) and remove the head plate (3) and interme- diate plate (2) from the pump housing. Replacing the diaphragm 1. Loosen the four Allen screws ( Fig. 10/2) of the housing cover ( Fig. 10/1) and remove the screws. Translation of Original Operating and Installation Instruction, english, KNF 318667-318664 05/21...
- Page 28 O-ring groove for contamination and damage. Clean the parts if nec- essary. Contact KNF in the event of unevenness, scratches or corrosion. Order and replace the damaged parts. Translation of Original Operating and Installation Instruction, english, KNF 318667-318664 05/21...
- Page 29 Leaks may lead to poisoning, chemical WARNING burns or similar injuries. If you have questions with regard to maintenance, please contact your KNF technical adviser (contact data: see www.knf.com). Translation of Original Operating and Installation Instruction, english, KNF 318667-318664 05/21...
- Page 30 2 Intermediate plate 3 Head plate 4 Screws 5 Diaphragm 6 Screws 7 Reed valves 8 Valve limiter 9 Locating pin 10 O-ring 11 O-ring Fig.11 N922STE EX pump parts Translation of Original Operating and Installation Instruction, english, KNF 318667-318664 05/21...
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Page 31: Troubleshooting
à Max. voltage range of motor ex- Disconnect pump from electrical mains. ceeded. à The applied voltage must not exceed the value specified in Chapter 7.3 Electrical connection. Tab.13 Translation of Original Operating and Installation Instruction, english, KNF 318667-318664 05/21... - Page 32 2. Clean the pump (see Chapter 9.2.2 Cleaning the pump). 3. Send the pump together with completed Health and Safety Clearance and Decontamination Form to KNF, stating the nature of the trans- ferred medium. Translation of Original Operating and Installation Instruction, english, KNF 318667-318664 05/21...
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Page 33: Spare Parts And Accessories
O-ring (Ø 5.5 x 2) O-ring (Ø 32 x 2) Tab.16 Spare parts set Order number N922STE 328447 N922SPE 331313 Tab.17 11.2 Accessories Accessories Order number Valve position gauge 327470 Tab.18 Translation of Original Operating and Installation Instruction, english, KNF 318667-318664 05/21... -
Page 34: Returns
Returns KNF shall undertake to repair the pump only under the condition that the customer presents a certificate regarding the medium that is pumped and the cleaning of the pump. Please follow the instructions at knf.com/repairs here. - Page 36 KNF worldwide You can find our local KNF partners at: www.knf.com...
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