Installation, Operating & Maintenance Instructions
Series 651 DN 320-400 (I.D. 12“ - 16”), Logic
VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Tel +41 81 771 61 61 Fax +41 81 771 48 30 CH@vatvalve.com www.vatvalve.com
267736ED
2008-02-26
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5.2.2 Retrofit / replacement procedure
ESD Precaution!
All work on the control and actuating unit has to be done under ESD protected environment to prevent
electronic components from damage!
Top view on control and actuating unit with panel removed:
Note: All boards have a fixed position into control and actuating unit. It is not possible to fit a board in other position as
shown in picture above. Do not try out other positions, that may be destroy the socket of boards!
Master board
Option board
Interface board
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