Brochure

C Series Curved-Blade Diffusers
Selection Procedure
1. Determine the diffuser air pattern best suited
to the duct layout and room area to be served.
2. Select the air pattern type and CFM per
outlet. The tables give the recommended limits
of air volume per outlet for various ceiling
heights. Choose the correct table for the style
diffuser selected. Outlets are assumed to be
mounted flush on the ceiling and no obstruc-
tion to the air stream.
3. Turn to the proper SIZE SELECTION TABLE
for the air pattern desired.
4. Determine the appropriate size based on the
CFM, Throw, Pressure Loss, and Face Velocity
requirements.
Curved-Blade – C Series
1
Engineering Data
C Series Curved Blade Diffusers
Selection Procedure
1. Determine the diffuser air pattern best suited to the duct layout and room area
to be served.
2. Select the air pattern type and CFM per outlet. The tables below give the
recommended limits of air volume per outlet for various ceiling heights.
Choose the correct table for the style diffuser selected. Outlets are assumed
to be mounted flush on the ceiling and no obstruction to the air stream.
3. Turn to the proper SIZE SELECTION TABLE for the air pattern desired.
4. Determine the appropriate size based on the CFM, Throw, Pressure Loss,
and Face Velocity requirements.
CURVED BLADE – C SERIES
Maximum CFM
per outlet
Ceiling
Height
In Feet
Maximum Cooling
Temperature
Differential (°F)
1 way 2 way 3 way 4 way
715° 75 150 225 300
818° 100 200 300 400
920° 200 400 600 800
10 22° 300 600 900 1200
11 25° 400 800 1200 1600
12 25° 500 1000 1500 2000
14 25° 700 1400 2100 2800
16 25° 900 1800 2700 3600
The Face Bars on the Curved Blade Diffuser should be pre-set to
the dimension shown below.
ONE WAY PATTERN
The Face Bars on the Curved-Blade Diffuser should be pre-set to
the dimension shown below.
13/32"
*NC 30 NC 35 **NC 40
* less than or equal to ** greater than or equal to
C Series Curved-Blade Diffusers (Page 17-21)
One-Way, Two-Way
40 0 50 0 6 0 0 7 0 0 8 0 0 9 0 0 1 0 0 0 1 1 0 0 1 2 0 0
.0 1 0 .0 1 6 .0 2 2 .0 3 1 .0 40 .0 50 .0 6 2 .0 7 5 .0 9 0
C F M 35 45 55 65 70 80 90 100 110
T h ro w 1/2 3. 5/2. 5 5. 0/3. 5 6. 0/4. 0 7. 0/5. 0 7. 5/5. 5 8. 5/6. 0 9. 5/7. 0 11. 0/7. 5 11. 5/8. 5
C F M 40 50 60 70 80 90 100 110 120
T h ro w 1/2 3. 5/2. 5 4. 5/3. 0 5. 5/4. 0 6. 5/4. 5 7. 0/5. 0 8. 0/6. 0 9. 0/6. 5 10. 0/7. 0 11. 0/7. 5
C F M 60 75 90 105 120 135 150 165 180
T h ro w 1/2 5. 0/3. 5 6. 0/4. 5 7. 0/5. 0 8. 5/6. 0 9. 5/7. 0 11. 0/7. 5 12. 0/8. 5 13. 0/9. 5 14. 0/10. 0
C F M 65 80 95 110 130 145 160 175 190
T h ro w 1/2 5. 0/3. 5 6. 0/4. 5 7. 5/5. 0 8. 5/6. 0 10. 0/7. 0 11. 0/8. 0 12. 0/9. 0 14. 0/9. 5 15. 0/10. 0
C F M 70 90 110 125 145 160 180 200 215
T h ro w 1/2 5. 0/3. 5 6. 5/4. 5 8. 0/5. 5 9. 0/6. 5 11. 0/7. 5 12. 0/8. 5 13. 0/9. 5 15. 0/10. 0 16. 0/11. 0
C F M 85 105 125 145 170 190 210 230 250
T h ro w 1/2 5. 5/4. 0 7. 0/5. 0 8. 5/6. 0 10. 0/7. 0 11. 0/8. 0 13. 0/9. 0 14. 0/10. 0 16. 0/11. 0 17. 0/12. 0
C F M 95 120 145 170 190 215 240 265 290
T h ro w 1/2 6. 0/4. 0 7. 5/5. 0 9. 0/6. 5 10. 0/7. 5 12. 0/8. 0 13. 0/9. 5 15. 0/10. 0 16. 0/11. 0 18. 0/13. 0
C F M 115 145 175 205 230 260 290 320 350
T h ro w 1/2 6. 5/4. 5 8. 0/5. 5 9. 5/7. 0 11. 0/8. 0 13. 0/9. 0 14. 0/10. 0 16. 0/11. 0 18. 0/13. 0 19. 0/14. 0
C F M 125 155 185 215 250 280 310 340 370
T h ro w 1/2 6. 5/5. 0 8. 5/6. 0 10. 0/7. 0 12. 0/8. 0 13. 0/9. 5 15. 0/11. 0 17. 0/12. 0 18. 0/13. 0 20. 0/14. 0
C F M 140 175 210 245 280 315 350 385 420
T h ro w 1/2 7. 0/5. 0 9. 0/6. 0 11. 0/7. 5 12. 0/8. 5 14. 0/10. 0 16. 0/11. 0 18. 0/12. 0 19. 0/14. 0 21. 0/15. 0
C F M 185 230 275 320 370 415 460 505 550
T h ro w 1/2 8. 0/5. 5 10. 0/7. 5 12. 0/9. 0 14. 0/10. 0 16. 0/11. 0 18. 0/13. 0 20. 0/14. 0 22. 0/16. 0 24. 0/17. 0
C F M 190 240 290 335 385 430 480 530 575
T h ro w 1/2 8. 0/5. 5 10. 0/7. 5 12. 0/9. 0 14. 0/10. 0 17. 0/12. 0 18. 0/13. 0 21. 0/15. 0 23. 0/16. 0 25. 0/17. 0
C F M 250 315 380 440 505 565 630 695 755
T h ro w 1/2 9. 5/6. 5 12. 0/8. 5 14. 0/10. 0 16. 0/12. 0 19. 0/13. 0 21. 0/15. 0 23. 0/17. 0 26. 0/18. 0 28. 0/20. 0
C F M 270 340 410 475 545 610 680 750 815
T h ro w 1/2 9. 5/7. 0 12. 0/8. 5 15. 0/10. 0 17. 0/12. 0 19. 0/14. 0 22. 0/15. 0 24. 0/17. 0 27. 0/19. 0 29. 0/21. 0
C F M 280 350 420 490 560 630 700 770 840
T h ro w 1/2 10. 0/7. 0 12. 0/8. 5 15. 0/10. 0 17. 0/12. 0 20. 0/14. 0 22. 0/16. 0 25. 0/17. 0 27. 0/19. 0 30. 0/21. 0
C F M 290 365 440 510 585 655 730 805 875
T h ro w 1/2 10. 0/7. 0 13. 0. 9. 0 15. 0/11. 0 18. 0/12. 0 20. 0/14. 0 23. 0/16. 0 25. 0/18. 0 28. 0/20. 0 30. 0/21. 0
C F M 350 440 530 615 705 790 880 970 1055
T h ro w 1/2 11. 0/8. 0 14. 0/10. 0 17. 0/12. 0 19. 0/14. 0 22. 0/16. 0 25. 0/18. 0 28. 0/20. 0 31. 0/22. 0 33. 0/24. 0
C F M 420 525 630 735 840 945 1050 1155 1260
T h ro w 1/2 12. 0/8. 5 15. 0/11. 0 18. 0/13. 0 21. 0/15. 0 24. 0/17. 0 27. 0/19. 0 30. 0/21. 0 33. 0/23. 0 36. 0/25. 0
C F M 460 575 690 805 920 1035 1150 1265 1380
T h ro w 1/2 12. 0/9. 0 16. 0/11. 0 19. 0/13. 0 22. 0/15. 0 25. 0/18. 0 28. 0/20. 0 31. 0/22. 0 34. 0/24. 0 37. 0/26. 0
C F M 560
700 840 980 1120 1260 1400 1540 1680
T h ro w 1/2 14. 0/9. 5 17. 0/12. 0 21. 0/15. 0 24. 0/17. 0 27. 0/19. 0 31. 0/22. 0 34. 0/24. 0 38. 0/27. 0 41. 0/29. 0
T ermi n al V el o c i t y o f 75 F PM
F ac e V elo c it y
P r essu r e L o ss
6 x 6
A k . 090
8 x 6
A k . 100
10 x 6
A k . 150
8 x 8
A k . 160
12 x 6
A k . 180
14 x 6
A k . 210
36 x 10
A k . 880
10 x 10
A k . 240
12 x 10
A k . 290
16 x 8
A k . 310
12 x 12
A k . 350
36 x 12
A k 1. 050
36 x 16
A k 1. 400
F o r s i z es n o t l i s t ed an d s i z i n g t i ps s ee pag e( s ) 78
16 x 12
A k . 460
14 x 14
A k . 480
16 x 16
A k . 630
20 x 14
A k . 680
30 x 16
A k 1. 150
24 x 12
A k . 700
30 x 10
A k . 730
L
L
L
Recommended Noise Criteria and Face Velocity Ranges are on page 7582
Engineering Data
Engineering Data