Engineering Bulletin

REN4 (Page 59)
RE5T/RE5TI (Page 58)
REF5T/REF5TI (Page 56)
RZREF5T (Page 58)
RHF45T (Page 55)
441 & 445 (Page 59)
442, 443 & 444 SurfAire
®
(Page 59)
96AFBT/96AFBTI (Page 54, 55)
659T/659TI/PFT/PFTI Series Performance
(Page 53, 56)
300 400 500 600
659T CFM 730 975 1220 1465
Ak 2.440 -Ps .017 .030 .047 .067
PFT CFM 820 1095 1370 1645
Ak 2.740 -Ps .028 .050 .078 .113
659-TI
w/12" collar CFM 670 890 1115 1340
Ak 2.230 -Ps .084 .147 .230 .330
w/14" collar CFM 680 905 1130 1355
Ak 2.260 -Ps .060 .105 .165 .240
w/16" collar CFM 695 930 1160 1390
Ak 2.320 -Ps .039 .068 .106 .155
PFTI
w/12" collar CFM 770 1025 1280 1535
Ak 2.320 -Ps .098 .170 .265 .380
w/14" collar CFM 775 1035 1295 1555
Ak 2.590 -Ps .076 .125 .200 .283
w/16" collar CFM 790 1050 1315 1580
Ak 2.630 -Ps .055 .094 .145 .210
Average Face Velocity
Note: Tested without filters. Typical capacity is 2 CFM per
square inch of nominal filter area. Recommended face
velocity is 300-450 FPM. Velocities higher will decrease filter
performance, increase flow resistance, and possibly be of
noise concern. Velocity measured 1" from face.
250 350 450 550 650 750 850 1000 1200
6"
CFM 50 70 90 110 130 145 165 195 235
Diameter
Ps .004 .009 .014 .021 .029 .036 .046 .065 .092
NC <20 <20 <20 <20 <20 22 26 33 36
Ak .370
441 Throw 5.5 7.0 9.5 11.0 14.0 16.0 18.0 22.0 24.0
Ak .430
445 Throw 4.0 5.0 6.5 8.0 10.0 11.0 13.0 15.0 17.0
8"
CFM 85 120 155 190 225 260 295 350 420
Diameter
Ps .006 .011 .018 .027 .037 .050 .064 .090 .127
NC <20 <20 <20 <20 22 27 33 35 38
Ak .450
441 Throw 7.0 10.0 13.0 16.0 18.0 21.0 25.0 29.0 31.0
Ak .530
445 Throw 5.0 7.0 9.5 12.0 13.0 15.0 18.0 21.0 23.0
10"
CFM 135 190 245 300 355 410 465 545 655
Diameter
Ps .009 .018 .030 .044 .062 .082 .105 .145 .212
NC <20 <20 <20 24 31 34 37 42 44
Ak .530
441 Throw 9.0 12.0 16.0 20.0 24.0 27.0 30.0 32.0 34.0
Ak .620
445 Throw 6.5 9.0 11.0 14.0 17.0 19.0 21.0 23.0 24.0
12"
CFM 195 275 355 430 510 590 670 785 940
Diameter
Ps .013 .026 .044 .064 .090 .120 .155 .215 .300
NC <20 <20 26 33 38 42 44 46 48
Ak .590
441 Throw 10.0 13.0 19.0 25.0 30.0 32.0 33.0 34.0 35.0
Ak .700
445 Throw 7.5 9.0 14.0 17.0 21.0 23.0 24.0 25.0 26.0
14"
CFM 265 375 480 590 695 800 910 1070 1285
Diameter
Ps .018 .036 .059 .089 .125 .165 .210 .295 .410
NC <20 22 29 36 42 >45 >45 >45 >45
Ak .640
441 Throw 8.0 13.0 22.0 26.0 28.0 30.0 31.0 32.0 33.0
Ak .750
445 Throw 6.0 10.0 16.0 20.0 22.0 24.0 26.0 28.0 30.0
Neck Velocity
Note: The use of a balancing hood is recommended to balance the system.
NC is based on 10dB room attenuation (Re: 10
-12
watts) ASHRAE 36-72.
Terminal Velocity of 75 FPM
300 400 500 600 700
CFM 524 698 873 1048 1222
Static Pressure (in W.C.) -0.024 -0.042 -0.065 -0.094 -0.128
Total Pressure (in W.C.) -0.018 -0.032 -0.050 -0.072 -0.098
Face Velocity
20 x 20
Ak 1.750
Note: Tested without filters. Typical capacity is 2 CFM per square inch of nominal filter
area. Recommended face velocity is 300-450 FPM. Velocities higher will decrease filter
performance, increase flow resistance, and possibly be of noise concern. Velocity
measured 1" from face.
250 350 450 550 650 750 850 1000 1200
6"
CFM 50 70 90 110 130 145 165 195 235
Diameter
Ps .004 .009 .014 .021 .029 .036 .046 .065 .094
NC <20 <20 <20 <20 <20 23 27 31 35
Ak .430
444 Throw 3.0 3.5 4.5 6.0 7.5 8.0 9.0 11.0 12.0
Ak .430
443 Throw* 3.0/4.0 3.5/5.0 4.5/6.5 6.0/8.0 7.5/10.0 8.0/11.0 9.0/13.0 11.0/15.0 12.0/17.0
Ak .430
442 Throw 4.0 5.0 6.5 8.0 10.0 11.0 13.0 15.0 17.0
8"
CFM 85 120 155 190 225 260 295 350 420
Diameter
Ps .006 .012 .019 .029 .040 .054 .070 .098 .140
NC <20 <20 <20 <20 21 26 31 34 37
Ak .530
444 Throw 4.0 5.0 6.5 8.0 9.5 11.0 13.0 15.0 17.0
Ak .530
443 Throw* 4.0/5.5 5.0/7.0 6.5/9.0 8.0/11.0 9.5/14.0 11.0/16.0 13.0/19.0 15.0/21.0 17.0/23.0
Ak .530
442 Throw 5.5 7.0 9.0 11.0 14.0 16.0 19.0 21.0 23.0
10"
CFM 135 190 245 300 355 410 465 545 655
Diameter
Ps .009 .017 .028 .043 .069 .078 .102 .140 .205
NC <20 <20 <20 22 29 35 38 42 46
Ak .620
444 Throw 4.0 6.0 8.0 10.0 12.0 13.0 15.0 18.0 19.0
Ak .620
443 Throw* 4.0/6.0 6.0/8.0 8.0/11.0 10.0/14.0 12.0/17.0 13.0/19.0 15.0/21.0 18.0/25.0 19.0/26.0
Ak .620
442 Throw 6.0 8.0 11.0 14.0 17.0 19.0 21.0 25.0 26.0
12"
CFM 190 245 355 450 530 590 670 785 940
Diameter
Ps .012 .024 .040 .059 .082 .110 .142 .195 .275
NC <20 <20 22 28 35 39 44 47 52
Ak .700
444 Throw 5.0 7.5 10.0 11.5 14.0 16.0 18.0 19.0 20.0
Ak .700
443 Throw* 5.0/8.5 7.5/11.0 10.0/14.0 11.5/17.0 14.0/19.0 16.0/23.0 18.0/25.0 19.0/26.0 20.0/27.0
Ak .700
442 Throw 8.5 11.0 14.0 17.0 19.0 23.0 25.0 26.0 27.0
14"
CFM 285 375 480 590 695 800 910 1070 1285
Diameter
Ps .015 .031 .050 .075 .105 .137 .177 .245 .350
NC <20 21 27 31 36 40 45 48 53
Ak .750
444 Throw 6.0 9.0 11.0 14.0 17.0 19.0 20.0 22.0 24.0
Ak .750
443 Throw* 6.0/8.5 9.0/13.0 11.0/16.0 14.0/20.0 17.0/24.0 19.0/26.0 20.0/27.0 22.0/28.0 24.0/29.0
Ak .750
442 Throw 8.5 13.0 16.0 20.0 24.0 26.0 27.0 28.0 29.0
Note:
The use of a balancing hood is recommended to balance the system.
NC is based on 10dB room attenuation (Re: 10
-12
watts) ASHRAE 36-72.
Terminal Velocity of 75 FPM
Neck Velocity
*443 throw S/L
180 220 300 350 400 450 500 580 650 700
CFM 35 45 60 70 80 90 100 115 130 135
Ps .002 .003 .004 .006 .008 .010 .012 .015 .020 .022
NC <20 <20 <20 <20 <20 <20 20 22 26 30
Throw 3.0 3.5 4.5 5.5 6.5 7.5 8.0 9.0 11.0 11.0
CFM 65 75 105 120 140 155 175 200 225 245
Ps .002 .003 .006 .008 .010 .013 .016 .021 .027 .032
NC <20 <20 <20 <20 <20 22 25 30 35 38
Throw 4.0 5.0 6.0 7.0 8.5 9.5 11.0 12.0 13.0 15.0
CFM 100 120 165 190 220 245 275 315 355 380
Ps .003 .005 .009 .011 .015 .019 .024 .031 .040 .045
NC <20 <20 <20 <20 20 23 27 33 35 39
Throw 4.0 5.5 7.0 8.0 9.5 11.0 12.0 13.0 15.0 16.0
CFM 140 175 235 275 315 355 395 455 510 550
Ps .005 .007 .013 .018 .023 .029 .036 .048 .061 .071
NC <20 <20 <20 <20 21 24 27 33 36 40
Throw 4.5 5.5 7.0 8.0 10.0 11.0 12.0 14.0 15.0 17.0
CFM 190 235 320 375 430 480 535 620 695 750
Ps .007 .011 .020 .027 .036 .044 .055 .074 .094 .107
NC <20 <20 <20 <20 20 24 28 32 35 40
Throw 4.5 5.5 7.0 8.5 10.0 11.0 12.0 14.0 16.0 17.0
12" Diameter
Ak .700
14" Diameter
Ak .750
Note: The use of a balancing hood is recommended to balance the system.
NC is based on 10dB room attenuation (Re: 10
-12
watts) ASHRAE 36-72.
Terminal Velocity of 75 FPM
Neck Velocity
6" Diameter
Ak .430
8" Diameter
Ak .530
10" Diameter
Ak .620
300 400 500 600 700
RE5T/RE5TI
22 x 22 CFM 725 970 1210 1450 1695
Ak 2.420 -Ps .004 .006 .010 .014 .020
46 x 22 CFM 1520 2024 2530 3035 3540
Ak 5.060 -Ps .003 .006 .010 .012 .018
RH45T
22 x 22 CFM 785 1045 1305 1565 1825
Ak 2.610 -Ps .015 .030 .043 .062 .084
46 x 22 CFM 1635 2180 2725 3270 3815
Ak 5.460 -Ps .015 .030 .040 .059 .081
REF5T*/REF5TI*
20 x 20 CFM 600 800 1000 1200 1400
Ak 2.000 -Ps .003 .006 .010 .014 .019
44 x 20 CFM 1320 1760 2200 2640 3080
Ak 4.400 -Ps .003 .006 .009 .013 .018
RZREF5T
20 x 20 CFM 420 560 700 840 980
Ak 1.400 -Ps .004 .008 .013 .018 .025
RHF45T*
20 x 20 CFM 650 870 1085 1300 1520
Ak 2.170 -Ps .015 .025 .040 .060 .080
44 x 20 CFM 1430 1910 2385 2860 3340
Ak 4.770 -Ps .015 .024 .039 .058 .078
Average Face Velocity
Note: Tested without filters. Typical capacity is 2 CFM per square
inch of nominal filter area. Recommended face velocity is 300-450
FPM. Velocities higher will decrease filter performance, increase
flow resistance, and possibly be of noise concern. Velocity
measured 1" from face.
S
S
L
Recommended Noise Criteria and Face Velocity Ranges are on page 75
112
Engineering Data
Engineering Data