Engineering Bulletin

Engineering Data
Engineering Data
152
800
160
.042
27
4
280
.043
27
6
430
.043
33
6
610
.065
31
8
855
.065
39
9
900
180
.054
32
5
310
.054
30
7
490
.056
36
7
700
.080
34
9
960
.083
43
10
600
120
.024
x
3
210
.024
20
4
325
.024
24
5
470
.037
23
6
640
.037
30
7
500
100
.017
x
3
17 5
.017
x
4
270
.017
20
4
390
.026
20
5
535
.026
25
6
400
80
.011
x
2
140
.011
x
3
220
.012
x
3
310
.016
x
4
430
.016
20
5
RENPS, PDS (Page 90, 94)
Neck Velocity
cfm
Ps
NC
Throw
cfm
Ps
NC
Throw
cfm
Ps
NC
Throw
cfm
Ps
NC
Throw
cfm
Ps
NC
Throw
6" Dia.
An .20
8" Dia.
An .35
10" Dia.
An .54
12" Dia.
An .78
14" Dia.
An 1.07
1100
220
.080
38
6
385
.083
38
8.5
600
.082
42
9
870
.125
40
11
1200
.150
48
12
1000
200
.066
36
5
350
.068
34
8
550
.068
39
8
780
.100
37
10
1090
.125
45
11
700
140
.032
24
4
245
.034
24
5
385
.032
29
5
550
.050
26
7
750
.050
35
8
300
60
.008
x
1
110
.008
x
2
165
.008
x
2
230
.009
x
3
315
.009
x
3
Note: The use of a balancing hood is recommended to balance the system.
NC is based on 10 db room attenuation (Re: 10
-
12
watts) ASHRAE 36-72. X=less than 20.
Terminal velocity of 75 fpm.
Probe Position: The probe is held 1 inch in from the outer edge of the diffuser, flush with the face.
700
135
.021
x
3.5
245
.029
x
6.5
380
.041
20
10
550
.045
25
10.5
750
.071
25
11.5
12 00
235
.063
25
6
420
.086
35
10.5
655
.122
35
17
940
.132
40
18
1285
.205
40
19
14 00
275
.086
30
7
490
.117
35
12.5
765
.167
40
19.5
1100
.180
45
21
1500
.277
45
22.5
1000
195
.043
20
5
350
.060
30
9
545
.084
35
14
785
.094
35
15
1070
.140
40
16
800
155
.028
x
4
280
.038
20
7
435
.054
25
11
630
.060
30
12
855
.093
30
13
900
17 5
.035
x
4.5
315
.049
25
8
490
.068
30
12.5
705
.072
35
13.5
960
.115
35
14.5
600
120
.017
x
3
210
.022
x
5.5
325
.030
x
8.5
470
.033
20
9
640
.051
20
9.5
500
100
.012
x
3
17 5
.015
x
4.5
270
.021
x
7
390
.023
x
7.5
535
.036
x
8
Neck
Velocity
cfm
Ps
NC
Throw
cfm
Ps
NC
Throw
cfm
Ps
NC
Throw
cfm
Ps
NC
Throw
cfm
Ps
NC
Throw
400
80
.008
x
2
140
.010
x
3.5
220
.014
x
5.5
315
.015
x
6
430
.023
x
6.5
HVS, FPD,FPD3 (Page 91)
6"
An .20
Ak .78
8"
An .35
Ak .92
10"
An .54
Ak 1.20
12"
An .78
Ak 1.65
14"
An 1.07
Ak 2.06
1600
315
.112
35
8
560
.150
40
14.5
870
.212
45
22
1255
.230
45
24
1710
.350
45
25
Terminal velocity of 75 fpm.
An = neck area in sq. feet.
PROBE
POSITION
SBP (Page 93)
Three-Way (Short Throw)
• For throw in all three
directions, use short
throw data.
1 2
3 4
1 2
3 4
Neck Velocity 300 400 500 600 700 800 900 1000 1200 1400
Velocity Pressure 0.006 0.010 0.016 0.022 0.031 0.040 0.051 0.062 0.090 0.122
Cfm 60 80 100 120 140 160 180 200 240 280
6" Dia. Total Pressure 0.005 0.008 0.013 0.025 0.025 0.032 0.041 0.050 0.027 0.098
Short Horizontal Throw 2-1-1 2-1-1 3-1-1 3-2-1 4-2-1 4-2-1 5-2-2 5-3-2 6-3-2 7-4-2
Long Horizontal Throw 3-1-1 4-2-1 5-2-2 6-3-2 7-3-2 8-4-3 9-4-3 10-5-3 12-6-4 14-7-5
Noise Criteria <20 <20 <20 <20 <20 22 24 26 31 37
Cfm 105 140 175 210 245 280 315 350 420 490
8" Dia. Total Pressure 0.009 0.015 0.024 0.034 0.046 0.061 0.077 0.095 0.136 0.185
Short Horizontal Throw 3-1-1 4-2-1 5-2-2 6-4-3 7-3-2 8-4-3 9-4-3 10-5-3 12-6-4 14-7-5
Long Horizontal Throw 5-3-2 7-4-2 9-5-3 11-5-4 13-6-4 15-7-5 16-8-5 18-9-6 22-11-7 25-13-8
Noise Criteria <20 <20 <20 <20 20 25 30 34 39 44
Cfm 165 220 275 330 385 440 495 550 660 770
10" Dia. Total Pressure 0.013 0.023 0.036 0.052 0.071 0.092 0.117 0.144 0.208 0.283
Short Horizontal Throw 5-2-2 6-3-2 8-4-3 10-5-3 11-6-4 13-6-4 14-7-5 16-8-5 19-10-6 23-11-8
Long Horizontal Throw 9-5-3 12-6-4 15-8-5 18-9-6 21-11-7 24-12-8 27-14-9 30-15-10 36-18-12 42-21-14
Noise Criteria <20 <20 <20 22 25 28 33 36 41 47
Cfm 240 320 400 480 560 640 720 800 960 1120
12" Dia . Total Pressure 0.017 0.030 0.047 0.068 0.093 0.121 0.153 0.189 0.273 0.371
Short Horizontal Throw 7-4-2 10-5-3 12-6-4 15-7-5 17-9-6 20-10-7 22-11-7 25-12-8 30-15-10 35-17-12
Long Horizontal Throw 14-7-5 19-9-6 23-12-8 28-14-9 33-16-11 37-19-12 42-21-14 47-23-16 56-28-19 65-33-22
Noise Criteria <20 <20 21 25 29 32 35 38 44 50
Cfm 330 440 550 660 770 880 990 1100 1320 1540
14" Dia. Total Pressure 0.020 0.036 0.057 0.081 0.111 0.145 0.183 0.226 0.326 0.443
Short Horizontal Throw 11-6-4 15-7-5 18-9-6 22-11-7 26-13-9 29-15-10 33-17-11 37-18-12 44-22-15 52-26-17
Long Horizontal Throw 21-10-7 28-14-9 34-17-11 41-21-14 48-24-16 55-28-18 62-31-21 69-34-23 83-41-28 97-48-32
Noise Criteria <20 <20 25 31 36 40 43 45 48 53
Notes:
1. Tests conducted in accordance with ANSI/ASHRAE 70-1991 at isothermal conditions.
2. Tests conducted with a straight rigid inlet condition. Other inlet conditions may alter performance.
3. Unit of measure: Neck Velocity = fpm; Velocity Pressure = in. w.c. Air Flow Rate = cfm; Total Pressure =
in. w.c. Throw = ft at 50, 100, and 150 fpm terminal velocity
4. Noise Criteria (NC) is based upon 10 dB room absorption (Re: 10
-12
watts) evaluated at 125 thru 4000 Hz
octave bands.
5. Flow hoods are recommended for system balancing.
Four-Way (Short Throw)
• For throw in all four
directions, use short
throw data.
Three-Way (Long & Short)
• For throw in the #2 & #4
direction use long throw
data.
• For throw in the #1 & #3
directions, use short throw
data.
Two-Way Corner
(Long & Short)
• For throw in the #2 & #4
direction use long throw
data.
• For throw in the #1 & #3
directions, use short throw
data.
Two-Way (Long Throw)
• For throw in both directions
use long throw data.
Two-Way (Short Throw)
• For throw in both directions
use short throw data.
One-Way (Long Throw)
• For throw use long throw
data.
1 2
3 4
1 2
3 4