Brochure
PERFORMANCE DATA—LIGHT COMMERCIAL
Recommended Noise Criteria and Face Velocity Ranges are on page 19.
60
400 500 600 700 800 900 1000 1200 1400 1600
CFM 80 100 120 135 155 175 195 235 275 315
Ps .008 .012 .017 .021 .028 .035 .043 .063 .086 .112
NC <20 <20 <20 <20 <20 <20 20 25 30 35
Throw 2.0 3.0 3.0 3.5 4.0 4.5 5.0 6.0 7.0 8.0
CFM 140 175 210 245 280 315 350 420 490 560
Ps .010 .015 .022 .029 .038 .049 .060 .086 .117 .150
NC <20 <20 <20 <20 20 25 30 35 35 40
Throw 3.5 4.5 5.5 6.5 7.0 8.0 9.0 10.5 12.5 14.5
CFM 220 270 325 380 435 490 545 655 765 870
Ps .014 .021 .030 .041 .054 .068 .084 .122 .167 .212
NC <20 <20 <20 20 25 30 35 35 40 45
Throw 5.5 7.0 8.5 10.0 11.0 12.5 14.0 17.0 19.5 22.0
CFM 315 390 470 550 630 705 785 940 1100 1255
Ps .015 .023 .033 .045 .060 .072 .094 .132 .180 .230
NC <20 <20 20 25 30 35 35 40 45 45
Throw 6.0 7.5 9.0 10.5 12.0 13.5 15.0 18.0 21.0 24.0
CFM 430 535 640 750 855 960 1070 1285 1500 1710
Ps .023 .036 .051 .071 .093 .115 .140 .205 .277 .350
NC <20 <20 20 25 30 35 40 40 45 45
Throw 6.5 8.0 9.5 11.5 13.0 14.5 16.0 19.0 22.5 25.0
14"
An 1.070
Ak 2.060
1500 / 1520 / 1530 / 1540 / 1560 / 1570 Step-Down Ceiling Diffusers
Terminal Velocity of 75 FPM
An = Neck Area in square feet
Ak = Effective Area in square feet
Ps = Static Pressure Loss in inches of water
NC = Noise Criteria, based on a 10dB room attenuation (RE: 10
-12
watts) ASHRAE 36-72
6"
An .200
Ak .780
8"
An .350
Ak .920
10"
An .540
Ak 1.200
12"
An .780
Ak 1.650
Neck Velocity
Neck Size 6 x 6 8 x 8 10 x 10 12 x 12 14x14 16x16 18x18 20x20
No. of Blades per
Module
6 x 6 8 x 8 10 x 10 12 x 12 14x14 16x16 18x18 20x20
Effective Area
(
Ak
)
in S
q
. Ft.
.100 .178 .278 .400 .544 .711 .900 1.111
J
e
t
Velocity
N
ec
k
Velocity
CFM 75 133 208 300 408 533 675 833
4-wa
y
throw in fee
t
8 10 13 15 18 21 23 26
Noise Criteria <20 <20 <20 <20 <20 <20 <20 <20
Static Press inches wc .005 .008 .010 .014 .018 .023 .029 .035
CFM 100 178 278 400 544 711 900 1111
4-wa
y
throw in fee
t
9 12 15 18 21 24 27 30
Noise Criteria <20 <20 <20 <20 <20 20 <25 <25
Static Press inches wc .009 .013 .019 .025 .033 .042 .052 .063
CFM 125 222 347 500 681 889 1125 1389
4-wa
y
throw in fee
t
10 13 17 20 23 27 30 33
Noise Criteria <20 <20 <20 20 <25 <30 <30 30
Static Press inches wc .014 .020 .029 .039 .051 .065 .081 .098
CFM 150 267 417 600 817 1067 1350 1667
4-wa
y
throw in fee
t
11 15 18 22 25 29 33 36
Noise Criteria <20 <20 <25 25 <30 <35 <35 35
Static Press inches wc .021 .031 .043 .057 .075 .095 .117 .143
CFM 175 311 486 700 953 1244 1575 1944
4-wa
y
throw in fee
t
12 16 20 24 28 31 35 39
Noise Criteria <20 <25 <30 <30 <35 35 <40 <40
Static Press inches wc .028 .040 .057 .077 .101 .128 .159 .193
CFM 200 356 556 800 1089 1422 1800 2222
4-wa
y
throw in fee
t
13 17 21 25 29 34 38 42
Noise Criteria <20 25 <30 <35 <40 <40 <45 <45
Static Press inches wc .037 .053 .075 .101 .132 .167 .208 .253
Throw is at 50 f
p
m terminal velocit
y
NC is based on 10dB room attenuation
(
10
-12
watts
)
1444, AL1444 Modular Core
750 300
1000 400
1750 700
2000 800
1250 500
1500 600
Note: The use of a balancing hood is recommended to balance the system.
Note: Core in “out” position. Terminal velocity of 100 FPM
When diffusers are used on an exposed duct, multiply throw by 0.7.
NC <35 NC >35
300 400 500 600 700 800 900 1000 1200 1400 1600
CFM 60 80 100 120 135 155 175 195 235 275 315
Ps .004 .006 .010 .014 .018 .023 .030 .037 .054 .073 .096
NC <20 <20 <20 <20 <20 <20 20 25 30 35 40
Throw 1.0 1.0 1.5 1.5 2.0 2.0 2.5 2.5 3.0 3.5 4.0
CFM 105 140 175 210 245 280 315 350 420 490 560
Ps .010 .010 .015 .022 .029 .038 .049 .060 .086 .117 .150
NC <20 <20 <20 <20 20 25 30 30 35 40 45
Throw 1.5 2.0 2.0 2.5 3.0 3.5 4.0 4.5 5.5 6.5 7.0
CFM 165 220 275 325 380 435 490 545 655 765 875
Ps .014 .014 .021 .030 .041 .054 .068 .084 .122 .167 .212
NC <20 <20 <20 <20 20 25 30 35 40 45 50
Throw 2.0 3.0 3.5 4.0 5.0 5.5 6.5 7.0 8.5 10.0 10.5
CFM 235 315 395 470 550 630 705 785 945 1100 1260
Ps .015 .015 .023 .033 .045 .060 .072 .094 .132 .180 .230
NC <20 <20 <20 20 25 30 35 35 40 45 50
Throw 3.0 4.0 5.0 6.0 7.0 8.0 8.5 9.5 11.5 13.5 14.0
CFM 320 430 535 640 750 855 960 1070 1280 1500 1710
Ps .023 .023 .036 .051 .071 .093 .115 .140 .205 .277 .350
NC <20 <20 <20 25 30 35 35 40 45 50 55
Throw 5.0 7.0 8.5 10.5 12.0 13.5 15.5 17.0 20.5 24.0 24.5
14"
An 1.070
Ak .393
Terminal Velocity of 75 FPM
An = Neck Area in Sq. Ft.
NC = Noise Criteria, based on a 10dB room attenuation (RE: 10
-12
watts) ASHRAE 36-72
1580/1590/AL1580 T-Bar Plate Diffuser
6"
An .200
Ak .279
8"
An .350
Ak .354
10"
An .540
Ak .400
Neck Velocity
12"
An .780
Ak .397
Step-Down Diffusers 1500 / 1520 / AL1520
1530 / 1540 / 1540D / 1560 / 1570
1600 Adjustable Round Diffuser