Product data

Performance data
APPLICATION NC* LEVELS (RADIATED SOUND) — ROUND ZONE DAMPERS
DAMPER CFM
STATIC PRESSURE
(in. wg)
NC LEVEL
ZD-06
160
0.02 <20
0.52 <20
1.00 25
200
0.04 <20
0.50 22
1.00 24
240
0.06 <20
0.50 24
1.00 28
360
0.10 28
0.50 32
1.00 35
ZD-08
280
0.03 <20
0.50 <20
1.00 22
350
0.04 <20
0.50 22
1.00 22
420
0.06 28
0.50 25
1.00 27
630
0.10 28
0.50 28
1.00 30
ZD-10
440
0.01 22
0.50 25
1.00 27
514
0.02 22
0.50 28
1.00 29
584
0.03 25
0.50 27
1.00 32
659
0.04 30
0.50 32
1.00 34
990
0.09 35
0.50 35
1.00 37
ZD-12
630
0.01 22
0.50 35
1.00 38
700
0.03 22
0.50 37
1.00 38
770
0.02 22
0.50 38
1.00 39
860
0.04 27
0.50 39
1.00 40
950
0.05 32
0.50 40
1.00 40
1425
0.11 40
0.50 44
1.00 45
*Noise Criteria.
NOTE: The NC values are based on ARI (Air Conditioning and Refrigeration Institute) Standard 885-90
application assumptions.
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