Data Sheet for Product

Technical Specification Sheet
Document No. 149-245P25
December 8, 2011
Siemens Industry, Inc. Page 1 of 4
Fume Hood Controller
Variable Air Volume (VAV)
Figure 1. Fume Hood Controller (SMT board), Enclosure
and Operator Display Panel
The Fume Hood Controller is an integral part of the
APOGEE® Automation System. The controller is a
proven, patented stand-alone Direct Digital Control
(DDC) system for Variable Air Volume (VAV) control
of laboratory fume hoods. The controller maintains
constant face velocity as the fume hood sash is raised
and lowered. An Operator Display Panel provides the
fume hood user with the face velocity readout,
operating status of the hood, alarm horn, and an
emergency purge function. The Fume Hood Controller
operates independently and extends the benefits of
DDC to an entire facility’s HVAC equipment.
Features
Controller
• Constant face velocity fume hood operation.
• Maintains programmed minimum exhaust flow.
• Fully integrates with the APOGEE Automation
System controllers and software.
• True exhaust flow measurement used to position
the flow control device.
• Modular components, easy to install and service.
• Program and calibration parameters are user
defined or modified via the Laptop Terminal.
• PID closed loop control for all control devices.
• Electrically Erasable Programmable Read Only
Memory (EEPROM) memory for setpoint and
control parametersno battery needed.
• Supports multiple hood and sash configurations.
• Supports damper, VFD and Venturi Air Valve
airflow control devices.
• Surface Mount Technology for low electrical
noise.
Operator Display Panel
• Continuous display of hood operating parameters
using a large alpha-numeric display,
• Colored hood status lights for normal (green),
marginal (yellow), and alarm (red) conditions,
• Purge push-button for activation of emergency
operation mode,
• Alarm horn for high and low face velocity and
emergency purge indication
• Easy to install and connect to the controller via a
single cable and telephone type connectors.
Applications
Operating independently, or integrated with the
APOGEE Automation System, the Fume Hood
Controller may be configured for the following types of
laboratory fume hood applications:
• Single/Multi-Vertical Sash, Horizontal Sash and
Combination Sash Bench top and Distillation type
Fume Hoods.
• Vertical and Horizontal Sash Walk-in Hoods,
• Damper or Venturi Air Valve control for manifold
exhaust systems or VFD for single hood fans.
• Electronic or pneumatic damper actuators.