A39
SINGLE DUCT TERMINAL UNITS
A
SINGLE DUCT TERMINAL UNITS • 30HQ SERIES
Performance Data • AHRI Certification and Performance Notes
30HQ Series • Hospital Grade • Dissipative Silencer • AHRI Certification Points
Terminal: Steri-Liner • Silencer: Mylar, Spacer, Steri-Liner (MSSL) Media
Ratings are certified in
accordance with AHRI
Standards.
Performance Notes for Sound Power Levels:
1. Discharge sound power is the noise emitted from the unit
discharge into the downstream duct. Discharge Sound
Power Levels (SWL) now include duct end reflection energy
as part of the standard rating. Including the duct end
correction provides sound power levels that would normally
be transmitted into an acoustically, non-reflective duct. The
effect of including the energy correction to the discharge
SWL, is higher sound power levels when compared to
previous AHRI certified data. For more information on duct
end reflection calculations see AHRI Standard 880.
2. Radiated sound power is the breakout noise transmitted
through the unit casing walls.
3. Sound power levels are in decibels, dB re 10-12 watts.
4. All sound data listed by octave bands is raw data without any
corrections for room absorption or duct attenuation. Dash (-)
in space indicates sound power level is less than 20 dB or
equal to background.
0LQLPXP LQOHW ¨3V LV WKH PLQLPXP RSHUDWLQJ SUHVVXUH
requirement of the unit (damper full open) and the difference
in static pressure from inlet to discharge of the unit.
6. Asterisk (*) in space indicates that the minimum inlet static
pressure requirement is greater than 0.5" w.g. (125 Pa) at
rated airflow.
7. Data derived from independent tests conducted in accordance
with ANSI/ASHRAE Standard 130 and AHRI Standard 880.
Inlet
Size
Airflow
Min. Inlet
Discharge Sound Power Levels
@ 1.5" w.g. (375 Pa)
'
Ps
Radiated Sound Power Levels
@ 1.5" w.g. (375 Pa)
'
Ps
'
Ps
Octave Band
Octave Band
cfm
l/s
"w.g. Pa
2
3
4
5
6
7
2
3
4
5
6
7
4
150
71
0.24
60
65
60
55
48
29
37
49
50
47
39
31
30
5
250
118
0.08
20
67
62
53
49
30
38
55
48
45
35
35
30
6
400
189
0.06
15
71
67
58
51
37
41
59
52
47
40
36
33
7
550
260
0.06
16
74
67
59
48
36
45
61
54
49
43
36
33
8
700
330
0.08
21
77
67
58
48
39
47
61
53
50
40
39
35
9
900
425
0.07
17
75
65
57
48
44
48
60
54
49
44
39
36
10
1100
519
0.14
34
77
65
57
50
49
50
60
54
50
45
39
36
12
1600
755
0.19
48
76
64
58
52
54
55
61
58
53
49
42
39
14
2100
991
0.19
46
75
68
64
57
57
55
63
61
55
48
44
43
16
2800 1321 0.30
75
77
68
63
55
58
58
65
63
57
50
44
39
24 x 16
5350 2525 0.01
2
87
80
77
72
74
75
72
70
70
65
60
55