iii
Chapter 1 How Smoke Control Systems Work 1-1
Purpose ................................................................................................................... 1-1
Introduction .............................................................................................................. 1-1
In this Chapter ......................................................................................................... 1-1
Introduction .................................................................................................................. 1-2
Design Parameters .................................................................................................. 1-2
Design Concepts ..................................................................................................... 1-2
Controlling Smoke Movement ..................................................................................... 1-3
Basic Concept .......................................................................................................... 1-3
Creating Smoke Zones ............................................................................................ 1-5
Causes of Smoke Movement .................................................................................. 1-6
Managing Smoke Movement ................................................................................... 1-7
Principles of Smoke Control Systems ......................................................................... 1-8
System Types .......................................................................................................... 1-8
Maintaining System Integrity ................................................................................... 1-8
Smoke Control and Fire Control System Differences .................................................. 1-9
Separate System for Separate Goals ...................................................................... 1-9
Designing a Smoke Control System .......................................................................... 1-10
Basic Goal ............................................................................................................. 1-10
How to Begin ......................................................................................................... 1-10
Engineering Responsibility .................................................................................... 1-10
Creating the Zone-By-Zone Smoke Control Plan .................................................. 1-10
Determining the Smoke Containment Pressure .................................................... 1-11
Separating Smoke Zones Properly ........................................................................ 1-11
Selecting the Proper Fans and Duct Work ............................................................ 1-11
Choosing the Proper Dampers .............................................................................. 1-12
Placing Air Inlets and Outlets ................................................................................ 1-12
Designing a Dedicated Smoke Control System ........................................................ 1-13
Introduction ............................................................................................................ 1-13
About Stairtowers .................................................................................................. 1-13
Designing the Ideal Stairtower System .................................................................. 1-14
Ensuring Doors Can Open .................................................................................... 1-14
Controlling Pressure in a Stairtower ...................................................................... 1-15
Elevator Smoke Control ......................................................................................... 1-18
Detecting Smoke ....................................................................................................... 1-19
Introduction ............................................................................................................ 1-19
Configuring and Monitoring a Smoke Control System .......................................... 1-19
Firefighter Smoke Control Station (FSCS) ............................................................ 1-19
Testing the System ................................................................................................ 1-20
Related Documentation ......................................................................................... 1-20
Chapter 2 Smoke Control Design Parameters 2-1
Introduction .............................................................................................................. 2-1
In this Chapter ......................................................................................................... 2-1
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