36
Sound data housing emission
Sound pressure level L
p
in [db(A)], free-field conditions with 10 ft. (3 m.) clearance
Fan speed
Standard
1 adjoining room
connection
2 adjoining room
connections
On the outside
FS1
11.0
9.2
2.9
22.3
FS2
23.6
16.3
16.0
35.0
FS3
29.4
24.3
16.2
42.0
FS4
36.4
31.2
22.7
51.7
Sound data sound passage
Operating status of covers
Weighted sound reduction index R
w, p
(C;Ctr) [dB]
Weighted normalized level difference
D
n, e,w
[dB]
Supply and exhaust valves open
17 (-1; -3)
40
Supply and exhaust valves closed
25 (-1; -4)
48
4.5.1
Pressure loss-volume flow-characteristic curves for design of adjoining room connection
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
0
5
10
15
20
25
30
35
40
External Static Pressure [in. H2O]
Airflow Rate [cfm]
Blower Settings Based on Airflow and External Static Pressure
46 %
43 %
38 %
32 %
27 %
23 %
18 %
12 %
INSTRUCTIONS FOR SKILLED INSTALLERS
