Section 8
Fans, Blowers & Accessories


8.1

Air Correction Factors

8.1.1

Altitudes

8.1.1.1

ASHRAE

8.1.1.2

Marks’

8.1.2

Altitudes and Temperatures

8.2        

Centrifugal Fan Arrangements

8.3

Fan Laws

8.3.1

Carrier

8.3.2

New York Blower

8.4 

Integral Motors for 

Centrifugal Fans

8.5

Motor NEMA Assembly

Designations

8.6

Pressure Blower Selection

8.6.1

New York Blower

8.6.2

Roots

8.7

Sound Levels for Centrifugal 

Roof Exhausters

8.8

Spark-Resistant Fan 

Construction

8.9

Temperature and Altitude 

Effects on Fan Selection

8.10

Tip Speeds

8.11

Types of Fans

8.12

Variable Air Volume