Operating Instructions

Chapter 1 – Product Overview
Hardware Inputs
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Siemens Industry, Inc. Owner's Manual 125-5094
Building Technologies 2015-11-04
Chapter 1 – Product Overview
The Fume Hood Controller is a multi-application equipment controller designed to
provide Direct Digital Control (DDC) for various types of Variable Air Volume (VAV)
and 2-position fume hoods.
 The controller can operate as an independent, stand-alone, DDC room controller or
it can be networked with a field panel.
 The controller provides all termination, input/output, system and local
communication connections.
 The controller hardware consists of the controller with cover and mounting bracket
(see Figure Fume Hood Controller - Universal Sash Configuration with Damper or
Venturi Valve).
The controller board is the central computing/controlling component of the system.
The following applications are covered:
Vertical Sash
 Vertical Sash with Damper (Application 2942)
 Vertical Sash with Venturi (Application 2941)
2-Position CV with Damper
 2-Position with a Constant Volume (Application 2940)
 Slave Mode (Application 2900)
Hardware Inputs
Analog
Air velocity sensor(s) – (second sensor
available for field use)
Application 2940
Application 2941
Application 2942
(Optional) Differential pressure
transmitter/Linear Flow input (Vortex Shedder)
Application 2940
Application 2941
Application 2942
External face area Application 2941
Application 2942
Vertical sash sensor(s) Application 2941
Application 2942