RT-PRC031-EN 69
Performance Data—Return Fan
Figure 26. Return Fan Performance STANDARD CFM—Case B and Case C (40" Fan)
0 5000 10000 15000 20000 25000 30000 35000 40000 45000
0
1
2
3
4
5
6
7
8
9
10
1
0
%
W
O
C
F
M
2
0
%
W
O
C
F
M
3
0
%
W
O
C
F
M
4
0
%
W
O
C
F
M
5
0
%
W
O
C
F
M
6
0
%
W
O
C
F
M
9
0
%
W
O
C
F
M
8
0
%
W
O
C
F
M
7
0
%
W
O
C
F
M
50
B
H
P
4
0
B
H
P
3
0
B
H
P
2
5
B
H
P
2
0
B
H
P
1
5
B
H
P
1
0
B
H
P
7
.
5
B
H
P
5
B
H
P
1
3
0
0
R
P
M
1
2
0
0
R
P
M
1
1
0
0
R
P
M
1
0
0
0
R
P
M
9
0
0
R
P
M
8
0
0
R
P
M
7
0
0
R
P
M
6
0
0
R
P
M
Volumetric Airflow Rate(CFM)
40" Return Fan Performance
Static Presure(InWC)