McQuay Vision CA Series User Manual

McQuay IM 672-3 19
Operation Guidelines
Figure 33: Torque for FC variable inlet vanes (in–lb)
Figure 34: Torque for AF variable inlet vanes (in–lb
Figure 35:
Table 8: Unit sizes 040–090
Fan operating limits
Forward curved—housed
Dia. 20 22.38 25 27.62 30.25 33 36
Max. rpm Class I 1010 930 790 690 650 600 560
Max. rpm Class Il 1281 1178 1011 910 835 763 715
Airfoil—housed
Diameter 20 22.25 24.5 27 30 33 36.5
Max. rpm Class I 2077 1875 1691 1479 1328 1209 1073
Max. rpm Class Il 2703 2413 2199 1928 1730 1579 1401
300
250
200
150
100
90
80
70
60
50
350 400 450 500
550
600 650 700 750 800 850
900
1000 1500 2000
Fan speed (rpm)
FC22.25
FC20.00
FC18.00
FC15.00
FC12.62
FC24.50
Torque (in–lb)
300
250
200
150
100
600
650 700
750
800
850
1000
Fan speed (rpm)
900
400
350
550
900
AF40.25
AF27.00
AF24.50
AF22.25
AF20.00
AF38.50
AF33.00
AF30.00
500
600
700
800
2000
1000
1500
1500 2000 3000
2500
Torque (in–lb)
Table 9: Operating limits—plenum fans
Fan operating limits
Plenum fans
Dia. 13.5 15 16.5 18.25 20 22.25 24.5 27 30 33 36.5 40.25 44.50 49 54.25 60
Max. rpm Class I 2895 2589 2376 2256 2077 1875 1691 1479 1328 1209 1073 972 882 799 725 651
Max. rpm Class II 3786 3384 3100 2959 2703 2413 2199 1928 1730 1579 1401 1264 1150 1043 938 847
Max, rpm Class III 4000 4000 3887 3735 3409 3065 2780 2423 2182 1984 1756 1598 1447 1314 1178 1071
Table 10: Operating limits—inline fans, twin fans
Fan operating limits
Inline fans
Dia. 18.25 20 22.25 24.5 27 30 33 36.5 40.25 44.50 49 54.25
Max. rpm Class I2727248822362041183516651476133012081072 973 880
Max. rpm Class II 3409 3111 2796 2551 2294 2082 1846 1662 1510 1340 1216 1100
Twin fans
Dia. 9 x 9 10.62 12.62 15 18.12 20
Max. rpm 2575 2400 2000 1700 1400 1200
Max. hp 10 15 15 30 40 40

McQuay Vision CA Series Specifications

General

Brand	McQuay
Model	Vision CA Series
Category	Air Handlers
Language	English