Siemens BACnet - Application 6742 Fume Hood Controller Vertical Sash Configuration with Venturi Air Valve

Chapter 2 – Applications
Application 6742 Fume Hood Controller Vertical Sash Configuration with Venturi Air Valve
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Siemens Industry, Inc. Owner's Manual 125-5093
Building Technologies 2015-10-14
Application 6742 Fume Hood Controller Vertical Sash
Configuration with Venturi Air Valve
Application 6741 and Application 6742 are designed for use with a wide range of fume
hood sash configurations connected to a manifold fume hood exhaust system. The
sash configurations include:
 Bench style fume hoods – single vertical sash
 Dual Bench style fume hoods – side-by-side single vertical sash
 Floor Mounted style fume hoods – two vertical sashes, one on top of the other
WARNING
The application cannot detect a broken wire to the analog input for the second sash.
An external sash aggregating device should be used to calculate the face area for all
fume hoods with more than one sash.
Application 6742 Control Drawing.