McQuay MDB075B, Manual

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36
A D B 12 5 B B LOWER P E R F O R M A N C E C U R V E
0
5
10
15
20
25
30
35
40
45
50
0 2000 4000 6000 8000 10000 12000
Flow r ate, CFM
Total static pressure, mmAq
1kW
1.5kW
0.6kW
700RPM
800RPM
900RPM
H
I N T E R N A L
ST A T I C
r
r
r
System Curve
Design
Requirement
26.5
17.5
35.5
4500
The following table summarizes the pulley data, motor size used for the MDB series, as manufactured:
Motor pulley, Dm Blower pulley, Db
50 Hz 60 Hz 50 Hz 60 Hz
V-pulley Taper # V-pulley Taper # V-pulley Taper # V-pulley Taper #
Model
(in.) (mm) (in) (mm) (in.) (mm) (in) (mm)
MDB 125B/BR 4.0 80 4.0 80 8.0 160 10.0 200
MDB 125C/CR 3.5 85 4.0 80 6.5 160 10.0 200
MDB 150B/BR 4.0 80 5.0 75 8.0 160 12.0 180
MDB 150C/CR 4.5 71 5.0 75 8.0 125 12.0 180
MDB 200B/BR 4.0 80 5.0 75 7.0 140 10.0 160
MDB 250B/BR 6.5 90 4.0 85 12.0 180 9.0 200
MDB 300B/BR 6.5 95 4.0 80 12.0 180 9.0 180
MDB 350B/BR 6.0 125 5.0 95 12.0 250 12.0 224
MDB 400B/BR 5.5 106 4.5 95 13.0 250 13.0 280
MDB 450B/BR 5.5 112 N/A N/A 12.0 250 N/A N/A
MDB 500B/BR 6.0 150 4.0 100 12.0 315 10.0 250
MDB 600B/BR 5.0 132 N/A N/A 15.0 400 N/A N/A
MDB 750B/BR 5.0 140 N/A N/A 14.0 400 N/A N/A
Pulley Centre Distance, C Motor kW Motor RPM
50 Hz 60 Hz 50 Hz 60 Hz 50 Hz 60 Hz
Horizontal Vertical Horizontal Vertical
Model
(mm) (mm) (mm) (mm)
MDB 125B/BR 319 340 319 340 1.5 1.5 1425 1730
MDB 125C/CR 180 - 185 - 1.5 1.4 1425 1730
MDB 150B/BR 319 340 319 340 1.5 1.5 1425 1730
MDB 150C/CR 185 - 185 - 2.2 1.5 1430 1730
MDB 200B/BR 314 330 314 330 3.0 3.0 1430 1725
MDB 250B/BR 599 623 599 623 4.0 4.0 1440 1735
MDB 300B/BR 599 623 599 623 4.0 4.0 1440 1735
MDB 350B/BR 840 870 840 870 5.5 5.5 1445 1745
MDB 400B/BR 732 782 732 782 5.5 5.5 1445 1745
MDB 450B/BR 738 768 738 768 7.5 N/A 1445 N/A
MDB 500B/BR 700 751 700 751 11.0 11.0 1445 1750
MDB 600B/BR 300 490 300 490 11.0 N/A 1450 N/A
MDB 750B/BR 300 490 300 490 15.0 N/A 1455 N/A
MDB 125B BLOWER PERFORMANCE CURVE