Andover Controls Infinity User Manual

The Fundementals of Smoke Control
Andover Controls Corporation 1-19
TOC
Figure 1-7. Examples of Controlling Stairtower Pressure
Duct systems can also use bypass dampers and ducts to control the
amount of air flowing from the fan to the outlets. The bypass dampers
are opened when the stairtower is at the proper pressure, so that excess
air flows not into the duct system, but into the bypass duct and back to
the air inlet. See the next diagram for an example of a bypass duct
system.
Figure 1-8. A Bypass Pressure Control System
Air Pressure
Duct
Pressurization Fan
Bypass Duct
Air Intake
Bypass Duct Dampers
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Andover Controls Infinity Specifications

General

Brand	Andover Controls
Model	Infinity
Category	Controller
Language	English