design 51 - swsi & dwdi centrifugal blowers...©pacific hvac engineering 2016 tel. australia...
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© Pacific HVAC Engineering 2016 www.pacifichvac.com Tel. Australia 1300 733 833 NZ 0800 100 326
Design 51 - SWSI & DWDI Centrifugal Blowers
Description
Design 51 SWSI and DWDI, Aerofoil and Laminar impellers have ideal
characteristics for variable air volume systems. With a smooth, steep pressure
curve (graph below), changes in pressure cause only minor changes in
volume. The broad, high, efficiency curve offers a wide range of selections
from each fan size along with a wide operating range. The smooth stable air
flow over the entire performance range is the result of Chicago’s Deeply
spun inlet cones, impeller cones and aerofoil blades.
Construction
Impellers are fully welded from heavy gauge steel to deliver structural
integrity and operational longevity. Material gauges for each impeller size
have been modelled using finite element analysis. Spun steel impeller cones
optimise air flow while precision balancing assures dependable vibration free
operation. Fan housings are of continuously seam welded steel construction
with steel bearing supports. Stiffening braces at close intervals eliminate case
distortion due to variations in air pressure and flow. Precision shafts are of
machined, ground and polished SAE 1040 to 1045 Steel. Heavy duty SKF or
similar self aligning ball or roller type bearings are used as standard.
Testing
Rated fan performance has been tested in accordance with the
requirements of AMCA Standard 210. Rated fan sound performance has
been tested in accordance with the requirements of AMCA Standard 300.
Selection
The quick selection charts opposite, enable the selection of the most efficient
fan for a given duty. To determine the most efficient fan size, locate the
intersection of the required volume (m3/s) and static pressure (Pascals) on the
appropriate graph. The size to the right of this point is the correct selection.
0
20
40
60
80
100
0
20
40
60
80
100
0 20 40 60 80 100
% E
ffic
ien
cy
an
d P
ow
er
% P
ress
ure
% Volume
D51 Performance Characteristics
Static Pressure
Efficiency
Power
SWSI DWDI
Arrangement 1
Arrangement 3
Arrangement 4
Arrangement 7
Arrangement 8
Arrangement 9
Arrangement 3
Arrangement 7
Ancillary Equipment
Access panel
Outlet damper
Variable Speed Drive
Flanged Inlet and/or outlet
Matching inlet and/or outlet
flange
Inlet screen
Inlet box
Shaft seal
Shaft cooling wheel
Housing drain
Split housing
Spark resistant construction
Vibration isolators
Stainless steel or aluminium
construction
Special paint and coatings
Attenuators
Impeller mm
336 - 2000
Duty SWSI
up to, 105 m3/s
up to, 5.0 kPa
up to, 450° C
Duty DWDI
up to, 200 m3/s
up to, 5.0 kPa
up to, 65° C
application
Clean air applications including HVAC
product
D51 - SWSI & DWDI Blowers
Drive Arrangements
© Pacific HVAC Engineering 2016 www.pacifichvac.com Tel. Australia 1300 733 833 NZ 0800 100 326
D51 - SWSI
D51 - DWDI
© Pacific HVAC Engineering 2016 www.pacifichvac.com Tel. Australia 1300 733 833 NZ 0800 100 326
Design 51 - SWSI Block Dimensions and Weights
CW.0 CW.90 CW.45
CW.135 CW.180 CW.225
CW.270 Drive Arrangement
Model Impeller
Ø A AA B C CB CC CD D E F FF G H J
135 336 359 332 277 370 490 370 420 260 311 527 590 282 332 236 150 370 403 365 304 390 530 390 440 286 343 565 641 310 365 260 165 411 437 405 338 415 550 415 465 317 380 611 984 344 406 288 182 452 486 446 371 445 590 445 495 349 418 661 741 379 446 316 200 500 527 493 409 475 640 475 525 386 462 715 810 418 493 350 222 548 595 539 447 505 700 505 555 422 506 769 885 458 540 383 245 610 649 600 498 545 750 545 595 470 563 841 963 510 600 426 270 672 716 661 547 595 810 595 645 517 620 919 1049 561 661 469 300 740 806 727 603 650 900 650 700 569 682 1012 1159 618 728 516 330 822 873 808 670 695 930 695 745 632 758 1101 1237 686 808 573 365 903 973 887 736 715 1020 715 765 694 832 1171 1357 753 887 629 402 1000 1067 982 812 800 1160 800 850 768 921 1316 1523 834 982 697 445 1103 1185 1085 905 875 1210 875 925 849 1018 1443 1631 921 1085 770 490 1219 1301 1198 999 935 1320 935 985 938 1124 1566 1789 1018 1199 850 542 1343 1447 1320 1099 1020 1450 1020 1070 1033 1238 1712 1967 1121 1320 936 600 1486 1599 1460 1215 1115 1590 1115 1165 1142 1369 1878 2165 1240 1460 1036 660 1645 1745 1615 1345 1225 1740 1225 1275 1264 1515 2066 2382 1372 1616 1146 730 1808 1942 1776 1479 1325 1920 1325 1375 1389 1666 2251 2622 1508 1777 1260 807 2000 2148 1964 1634 1470 2150 1470 1520 1536 1842 2486 2918 1668 1965 1393
K
420
460
500
550
604
652
713
780
858
940
1025
1134
1242
1362
1482
1508
1689
1842
2026
Model Impeller L M N P Q R S T W X Y Z ZA Weight*
135 336 43 80 43 271 43 25 410 311 400 406 362 311 430 100 150 370 43 80 43 298 43 25 410 337 450 438 394 337 470 110 165 411 43 80 43 332 43 25 410 368 475 480 432 368 515 120 182 452 43 80 43 365 43 25 475 400 500 520 470 400 560 140 200 500 43 100 43 403 43 25 475 411 525 543 487 411 635 160 222 548 53 100 43 441 53 25 475 448 575 590 532 448 690 200 245 610 53 100 43 492 53 25 510 495 600 650 587 495 770 230 270 672 53 120 43 541 53 25 510 543 650 710 654 543 845 260 300 740 53 130 53 597 53 25 510 594 725 780 708 594 905 310 330 822 53 130 53 664 53 25 560 657 750 860 783 657 975 390 365 903 53 130 53 730 53 25 610 721 825 940 857 721 1070 480 402 1000 53 130 79 806 53 25 635 794 925 1058 946 794 1150 580 445 1103 70 140 79 897 70 25 710 872 975 1157 1040 872 1250 800 490 1219 70 160 79 991 70 25 735 959 1050 1271 1146 959 1400 900 542 1343 70 200 79 1091 70 25 750 1057 1200 1394 1262 1057 1560 1120 600 1486 70 200 79 1207 70 25 750 1172 1275 1534 1394 1172 1736 1430 660 1645 70 200 79 1337 70 25 800 1300 1375 1688 1565 1300 1935 1790 730 1808 71 200 79 1471 71 25 850 1443 1550 1850 1716 1443 2145 2410 807 2000 81 200 79 1626 81 25 900 1615 1725 2062 1916 1615 2435 3000
* Weight for Arrangement 9 Fan, excluding motor
© Pacific HVAC Engineering 2016 www.pacifichvac.com Tel. Australia 1300 733 833 NZ 0800 100 326
Model Impeller
Ø A AA B C CB CC CD D E F FF G H
135 336 359 332 490 255 490 370 370 260 311 527 590 282 332 150 370 403 365 541 277 530 390 392 286 343 565 641 310 365 165 411 437 405 601 303 550 415 418 317 380 611 984 344 406 182 452 486 446 662 328 590 445 443 349 418 661 741 379 446 200 500 527 493 731 359 640 475 499 386 462 715 810 418 493 222 548 595 539 801 389 700 505 529 422 506 769 885 458 540 245 610 649 600 890 428 750 545 568 470 563 841 963 510 600 270 672 716 661 979 467 810 595 607 517 620 919 1049 561 661 300 740 806 727 1081 520 900 650 685 569 682 1012 1159 618 728 330 822 873 808 1200 672 930 695 837 632 758 1101 1237 686 808 365 903 973 887 1318 723 1020 715 913 694 832 1171 1357 753 887 402 1000 1067 982 1460 860 1160 800 1050 768 921 1316 1523 834 982 445 1103 1185 1085 1615 927 1210 875 1147 849 1018 1443 1631 921 1085 490 1219 1301 1198 1785 1000 1320 935 1240 938 1124 1566 1789 1018 1199 542 1343 1447 1320 1966 1078 1450 1020 1318 1033 1238 1712 1967 1121 1320 600 1486 1599 1460 2174 1169 1590 1115 1409 1142 1369 1878 2165 1240 1460 660 1645 1745 1615 2404 1269 1740 1225 1539 1264 1515 2066 2382 1372 1616 730 1808 1942 1776 2647 1373 1920 1325 1663 1389 1666 2251 2622 1508 1777 807 2000 2148 1964 2927 1494 2150 1470 1834 1536 1842 2486 2918 1668 1965
Model Impeller J K L M Q R W X Y Z ZA Weight*
135 336 236 420 424 344 75 25 400 406 362 311 510 150 150 370 260 460 470 370 75 25 450 438 394 337 550 170 165 411 288 500 530 400 75 25 475 480 432 368 595 180 182 452 316 550 563 433 75 25 500 520 470 400 640 210 200 500 350 604 600 470 100 25 525 543 487 411 715 240 222 548 383 652 650 520 100 25 575 590 532 448 770 310 245 610 426 713 694 564 100 25 600 650 587 495 850 350 270 672 469 780 751 621 100 25 650 710 654 543 925 430 300 740 516 858 835 675 125 25 725 780 708 594 1005 470 330 822 573 940 904 744 125 25 750 860 783 657 1075 550 365 903 629 1025 963 803 150 25 825 940 857 721 1170 640 402 1000 697 1134 1037 877 150 25 925 1058 946 794 1300 910 445 1103 770 1242 1114 954 180 25 975 1157 1040 872 1400 1100 490 1219 850 1362 1249 1059 200 25 1050 1271 1146 959 1550 1310 542 1343 936 1482 1360 1170 200 25 1200 1394 1262 1057 1710 1520 600 1486 1036 1508 1471 1281 200 25 1275 1534 1394 1172 1886 1930 660 1645 1146 1689 1587 1397 230 25 1375 1688 1565 1300 2085 2520 730 1808 1260 1842 1715 1525 250 25 1550 1850 1716 1443 2295 3100 807 2000 1393 2026 1860 1670 300 25 1725 2062 1916 1615 2585 3860
Design 51 - DWDI Block Dimensions and Weights
CW.0 CW.90 CW.45
CW.135 CW.180 CW.225
CW.270 Drive Arrangement
* Weight for Arrangement 3 Fan and Base, excluding motor