Service and Parts Manual (2019, 2020, 2021, 2022)
43 PB
SPECIFICATIONS
ESP (External Static Pressure) chart (Duct Type) 18k
External  static  pressure 
External  static  pressure 
Standard  E SP Chart ( 0.18 in.H
2
O )
Airflow  rate (
)
Standard  ESP Chart ( 0.2 in.H
2
O )
Airflow  rate  ( )
0.18 
Rated
0.0 2200 
0.16 
Middle
0.14 
High
Low
0.10 
0.12 
0.08 
0.06 
0.02 
0.04 
0.00 
150 250 350 450 550 650 750 850 950
0.24
0.2
Rated
0.16
High
0.12
Middle
0.08
Low
0.0 0044
0
150 250 350 450 550 650 750 850 950
Figure 229










