KNF N022 AN.18 - User Manual

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KNF 121224-121389 04/16

Translation of original Operating Instructions, english Keep for future use!

Operating Instructions

Read and observe these Operating Instructions!

Diaphragm Vacuum Pumps and Compressors

N022 AN.18

N022 AT.18

N022 AV.18

N026.1.2 AN.18

N026.1.2 AT.18

N026.1.2 AV.18

N026.3 AN.18

N026.3 AT.18

N026.3 AV.18

KNF Neuberger GmbH

Alter Weg 3

79112 Freiburg

Germany

Phone +49-(0)7664 / 5909-0

Fax +49-(0)7664 / 5909-99

E-Mail: info@knf.de

www.knf.de

Contents Page

1. About this document ................................................................. 3

2. Use ............................................................................................ 4

3. Safety ........................................................................................ 5

4. Technical Data .......................................................................... 7

5. Design and Function ............................................................... 10

6. Installation and connection ...................................................... 12

7. Operation ................................................................................. 13

8. Servicing .................................................................................. 15

9. Troubleshooting ....................................................................... 19

10. Spare parts and accessories ................................................... 21

11. Returns .................................................................................... 22

12. Health and safety clearance and decontamination form ......... 23

Main Page

Questions and Answers

R
ramirezcynthiaAug 25, 2025
What to do if KNF N022 AN.18 does not transfer?
- D
  Diana TorresAug 26, 2025
  If your KNF Water Pump isn't transferring, begin by ensuring there is voltage in the power source, checking the room fuse and switching it on if necessary. If the thermal switch has activated due to overheating, disconnect the pump from the mains, allow it to cool, and identify and resolve the cause of overheating. Inspect connections and lines for blockages and remove them. Check any external valves and filters. If condensate has collected in the pump head, detach the condensate source and flush the pump. Lastly, if the diaphragm or reed valves are worn, replace them.
S
Shannon MartinezNov 8, 2025
What to do if KNF N022 AN.18 Water Pump flow rate, pressure or vacuum is too low?
- J
  Jennifer GriffinNov 8, 2025
  If the flow rate, pressure, or vacuum is too low, several factors could be at play. Start by checking for condensate in the pump head and detach the condensate source. Ensure that there is no gauge pressure on the pressure side while vacuum or pressure above atmospheric pressure is on the suction side; adjust the pressure conditions if needed. Examine pneumatic lines and connection parts for sufficient cross-section, eliminating any throttling. Inspect connections, lines, and the pump head for leaks, ensuring tubes are correctly seated and replacing any leaky ones. Check for clogs in connections or lines and remove any obstructions. Clean any soiled head components. If the diaphragm or reed valves are worn, replace them. If you have recently replaced the diaphragm and reed valves, check th...