Vane Axial Fans - Air and Sound Performance Manual

Vane Axial Fans - Air and Sound Performance Manual
Vane Axial Fan
Performance Supplement
®
August
2011
Table of Contents
Page(s)
Factors Affecting Air Performance.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Effects of Air Density. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Factors Affecting Air Performance.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Belt Drive
Selection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Belt Drive Performance Tables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-18
Direct Drive
Selection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19-21
Direct Drive Performance Charts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22-95
Sound Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
96-97
Calculating Belt Drive Sound Power Levels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Belt Drive Base Sound Power Levels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99-100
Calculating Direct Drive Sound Power Levels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Direct Drive Base Sound Power Levels (Full-Bladed Rotors). . . . . . . . . . . . . . . . . . . . . . . . . 102
Direct Drive Base Sound Power Levels (Half-Bladed Rotors). . . . . . . . . . . . . . . . . . . . . . . . . 103
Volume/Pressure Correction Chart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Specification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
NOTE:
The following information is printed on each vane axial performance page:
•
Maximum RPM for Class I and II (Belt Drive)
•
Minimum motor frame size (Direct Drive)
•
Maximum motor frame size
•
Fan outlet area
AIR
PERFORMANCE
•
Cone outlet area
•
Tip speed
®
AIR
MOVEMENT
AND CONTROL
ASSOCIATION
INTERNATIONAL, INC. ®
2
Greenheck Fan Corporation certifies that
the belt driven model VAB and direct driven
model VAD shown herein are licensed to
bear the AMCA seal. The ratings shown are
based on tests and procedures performed
in accordance with AMCA Publication 211
and comply with the requirements of the
AMCA Certified Ratings Program.
Factors Affecting Air Performance
System Effect
The Air Movement and Control Association (AMCA) International defines system effect as “a pressure loss
which recognizes the effect of fan inlet restrictions, fan outlet restrictions, or other conditions influencing fan
performance when installed in the system.” Duct elbows, transitions or other disruptions to uniform airflow may
contribute to system effect. Unducted fans may be affected by proximity to walls, beams and other obstructions
to airflow.
System effect is very difficult to quantify and correct. Frequently the only means to correct the resulting
poor performance is to increase the fan speed or increase the blade pitch. These corrections may increase
horsepower requirements beyond the capability of the motor. Also, the system effect may be so severe that
the fan is not capable of the higher static pressures required. The diagrams below show some more common
causes of system effect. For a quantitative discussion of system effect, refer to AMCA Publication 201.
3 Fan
2 ½ Duct Diameter
Turning
Vanes
Good
Good
Poor
Poor
D
Good
Poor
Good
Poor
Ducted Inlet Conditions
One
Fan
Diameter
Inlet Bell
Good
Poor
Good
Poor
Non-Ducted Inlet Conditions
Length of Straight Duct
2 ½ duct diameter
Good
Poor
Ducted Outlet Conditions
Two Fan
Diameter
Outlet Cone
Poor
Good
Non-Ducted Outlet Conditions
3
®
Effects of Air Density
Effects of Air Density – Temperature and Elevation
Ratings in the fan performance tables and curves of this catalog are based on standard air (clean, dry air with a
density of 0.075 pounds per cubic foot, barometric pressure at sea level of 406.75 in. wg, temperature of 70°F).
Selecting a fan to operate at conditions other than standard air requires an adjustment to both static pressure
and brake horsepower.
Dry Air Density Correction Factor (I-P)
Multiply Standard Air Density, 0.075 lbm / ft3 by the Factor to obtain Density at Condition pb
Altitude, (Z)
Barometric Pressure ( pb )
Temperature °F, (t)
Sea
2000
3000
4000
5000
6000
7000
8000
9000 10000
Level 1000
in. Hg 31.02 29.92 28.85 27.82 26.82 25.84 24.89 23.98 23.09 22.22 21.39 20.58
in. wg 421.71 406.75 392.21 378.20 364.61 351.29 338.37 326.00 313.90 302.07 290.79 279.78
-40
1.309 1.262 1.217 1.174 1.131 1.090 1.050 1.012 0.974 0.937 0.902 0.868
0
1.195 1.152 1.111 1.071 1.033 0.995 0.959 0.924 0.889 0.856 0.824 0.793
40
1.099 1.060 1.022 0.986 0.950 0.915 0.882 0.850 0.818 0.787 0.758 0.729
70
1.037 1.000 0.964 0.930 0.896 0.864 0.832 0.801 0.772 0.743 0.715 0.688
100
0.981 0.946 0.913 0.880 0.848 0.817 0.787 0.759 0.730 0.703 0.677 0.651
150
0.901 0.869 0.838 0.808 0.779 0.750 0.723 0.696 0.670 0.645 0.621 0.598
200
0.832 0.803 0.774 0.747 0.720 0.693 0.668 0.644 0.620 0.596 0.574 0.552
250
0.774 0.746 0.720 0.694 0.669 0.645 0.621 0.598 0.576 0.554 0.534 0.513
300
0.723 0.697 0.672 0.648 0.625 0.602 0.580 0.559 0.538 0.518 0.498 0.480
350
0.678 0.654 0.631 0.608 0.586 0.565 0.544 0.524 0.505 0.486 0.468 0.450
400
0.639 0.616 0.594 0.573 0.552 0.532 0.513 0.494 0.475 0.458 0.440 0.424
450
0.604 0.582 0.561 0.541 0.522 0.503 0.484 0.467 0.449 0.432 0.416 0.401
500
0.572 0.552 0.532 0.513 0.495 0.477 0.459 0.442 0.426 0.410 0.395 0.380
550
0.544 0.525 0.506 0.488 0.470 0.453 0.436 0.420 0.405 0.390 0.375 0.361
600
0.518 0.500 0.482 0.465 0.448 0.432 0.416 0.401 0.386 0.371 0.357 0.344
700
0.474 0.457 0.440 0.425 0.409 0.394 0.380 0.366 0.352 0.339 0.327 0.314
800
0.436 0.420 0.405 0.391 0.377 0.363 0.350 0.337 0.324 0.312 0.301 0.289
900
0.404 0.390 0.376 0.362 0.349 0.336 0.324 0.312 0.301 0.289 0.278 0.268
1000
0.376 0.363 0.350 0.337 0.325 0.313 0.302 0.291 0.280 0.269 0.259 0.250
ft.
-1000
Dry Air Density Correction Factor (SI)
Multiply Standard Air Density, 1.2 kg /m2 by the Factor to obtain Density at Condition pb
Altitude, (Z)
m
mm. Hg
Barometric Pressure ( pb )
kPa
-20
0
20
40
60
80
100
120
140
Temperature °C, (t)
160
180
200
220
240
260
280
300
320
340
-300
787.41
104.98
1.200
1.112
1.036
0.970
0.912
0.860
0.814
0.773
0.735
0.701
0.670
0.642
0.616
0.592
0.570
0.549
0.530
0.512
0.495
Sea
Level
760.00
101.325
1.158
1.073
1.000
0.936
0.880
0.830
0.786
0.746
0.710
0.677
0.647
0.620
0.594
0.571
0.550
0.530
0.511
0.494
0.478
300
600
900
1200
1500
1800
2100
2400
2700
3000
733.34 707.46 682.33 657.95 634.25 611.23 588.87 567.20 546.19 525.87
97.77 94.32 90.97 87.72 84.56 81.49 78.51 75.62 72.82 70.11
1.117 1.078 1.040 1.003 0.966 0.931 0.897 0.864 0.832 0.801
1.036 0.999 0.964 0.929 0.896 0.863 0.832 0.801 0.771 0.743
0.965 0.931 0.898 0.866 0.835 0.804 0.775 0.746 0.719 0.692
0.903 0.871 0.840 0.810 0.781 0.753 0.725 0.699 0.673 0.648
0.849 0.819 0.790 0.762 0.734 0.708 0.682 0.657 0.632 0.609
0.801 0.773 0.745 0.719 0.693 0.668 0.643 0.620 0.597 0.574
0.758 0.731 0.705 0.680 0.656 0.632 0.609 0.586 0.565 0.544
0.719 0.694 0.669 0.646 0.622 0.600 0.578 0.556 0.536 0.516
0.685 0.660 0.637 0.614 0.592 0.571 0.550 0.530 0.510 0.491
0.653 0.630 0.608 0.586 0.565 0.544 0.524 0.505 0.486 0.468
0.624 0.602 0.581 0.560 0.540 0.520 0.501 0.483 0.465 0.448
0.598 0.577 0.556 0.536 0.517 0.498 0.480 0.462 0.445 0.429
0.574 0.553 0.534 0.515 0.496 0.478 0.461 0.444 0.427 0.411
0.551 0.532 0.513 0.495 0.477 0.459 0.443 0.426 0.411 0.395
0.531 0.512 0.494 0.476 0.459 0.442 0.426 0.410 0.395 0.380
0.511 0.493 0.476 0.459 0.442 0.426 0.411 0.396 0.381 0.367
0.494 0.476 0.459 0.443 0.427 0.411 0.396 0.382 0.368 0.354
0.477 0.460 0.444 0.428 0.412 0.397 0.383 0.369 0.355 0.342
0.461 0.445 0.429 0.414 0.399 0.385 0.370 0.357 0.344 0.331
Adapted from AMCA Standard 99-10, section 0200, Charts and Tables, with written permission from Air Movement and Control Association International, Inc.
®
4
Effects of Air Density
Effects of Air Density – Temperature and Elevation
One cubic foot of air has a constant volume regardless of temperature or elevation. However, air density
changes with temperature and elevation. Therefore, when selecting a fan to operate at a non-standard air
density using standard air density tables and curves, corrections must be made to parameters affected by air
density. These parameters are static pressure and brake horsepower.
For example, a size 48 vane axial fan is to deliver 40,000 cfm at 1.5 in. wg static pressure. Elevation is 4,000 ft,
temperature is 150°F.
The 1.5 in. wg static pressure refers to the static pressure at the operating air density, in this case at 4,000 ft,
150°F. Intuitively, we realize that at higher than standard elevations and temperatures, air density will be
lower than standard. Therefore, we must determine what static pressure at standard air density will equate
to 1.5 in. wg static pressure at our operating density. Since standard air density is greater than operating
air density in this case, we would expect the corrected static pressure to be greater than the operating
static pressure.
The accompanying tables on page 4 give air density correction factors for non-standard temperatures and
elevations.
The example below shows the relationship of fan performance at sea level and at 4,000 ft. elevation and 150°F.
Example: How to select a VAB-48F26 vane axial fan for 40,000 cfm, static pressure of 1.5 in. wg, elevation
4,000 ft. and temperature of 150°F.
1. Since the air volume delivered by the fan is not
affected by density, CFM remains 40,000.
5.0
40
3. Divide specified static pressure (1.5 in. wg) by the
correction factor (0.75) to determine standard air
density equivalent static pressure.
4. Using the performance tables—belt drive for this
example on page 14—enter with 2.0 in. wg static
pressure (assuming a ducted outlet) and 40,000 cfm.
4,0
aL
00
f
2.0
ev
t.
30
el
@
@
15
0˚
˚F
1.5 in. wg
= 2.0 in. wg
0.75
Se
3.0
70
Total Pressure (in. wg)
4.0
F
Se
aL
4,0
00
eve
ft.
@
1.0
0.0
0
5. At the intersection of 2.0 in. wg and 40,000 cfm, the
fan RPM is 1090 and Bhp is 23.0.
5
10
15
20
25
30
35
40
[email protected]
20
70
˚F
15
0˚F
45
50
10
55
CFM x 1,000
Model VAB-48F26 1140 FRPM
Sea Level Density Correction Factor = 1.0
Density = 0.075 lb/ft³
4,000 ft. and 150°F Density Correction Factor = 0.75
Density = 0.056 lb/ft³
6. Since the horsepower selected refers to standard
air density, this must be corrected to reflect
actual Bhp at the lighter operating air. Remember,
horsepower is less at a lower air density. Multiply
the Bhp required (23.0) by the correction factor
(0.75) selected previously to determine Bhp at the
new operating conditions.
23.0 X 0.75 = 17.25 Bhp required
NOTE: If a fan is selected to operate at high temperatures, the motor must
be of sufficient horsepower to handle the increased load at any lower
operating temperature where the air is more dense.
Example: Assume the air entering the VAB-48F26 fan at start-up is 0°F.
For 0°F and 4,000 feet elevation, the air density correction factor is 0.995.
Bhp at 0°F = 23.0 x 0.995 = 22.9, therefore, a 25 HP motor is required.
5
®
0
60
Bhp
2. Select the correction factor from the chart for
4,000 ft. elevation and 150°F. Correction factor
is 0.75.
50
_____ Static Pressure/CFM
- - - - BHP
Factors Affecting Air Performance
Outlet Conditions
Inlet Conditions
High outlet velocities associated with vane axial fans
create pressure losses which reduce fan efficiency.
These velocity pressure losses can be minimized by
use of an outlet cone.
Inlet Conditions must be considered when selecting
vane axial fans. Turbulent or non-uniform airflow into
the vane axial rotor will result in performance loss,
noise and vibration. The following are three inlet
configurations found on vane axial fans (not shown):
An outlet cone reduces velocity pressure losses when
installed on the outlet of a vane axial fan. The outlet
cone acts as a diffuser, allowing velocity pressure
to be converted to usable static pressure. This is
known as “static regain” and increases fan efficiency,
reducing horsepower requirements.
1. Ducted Inlet. A straight ducted inlet with no turns,
elbows or irregularities to create non-uniform
airflow.
2. Ducted Inlet With Inlet Cone. An inlet cone is
recommended for a smooth transition from a
larger duct diameter to a smaller fan size.
The diagrams below show four outlet conditions with
and without an outlet cone:
3. Non-ducted Inlet. Inlet bells are highly
recommended on all non-ducted inlets. An inlet
bell smooths airflow drawn around the fan housing
edge and improves the airflow pattern near
blade tips. All Greenheck performance charts are
calculated with the use of inlet bells.
1. Ducted Outlet With Outlet Cone. This
configuration provides the greatest static
regain and least velocity pressure loss. Highly
recommended for long-term energy savings.
2. Free Discharge With Outlet Cone. Relatively small
velocity pressure losses when compared to a free
discharge without an outlet cone. Recommended
for all non-ducted outlets.
Note: All vane axial fans in this brochure were tested
with inlet bells and three equivalent diameters (in
length) of outlet duct. A long, straight section of inlet
ductwork will yield the same air performance as an
inlet bell. Be aware that loose, flexible connectors at
the inlet will create non-uniform airflow and reduce
cataloged performance.
3. Ducted Outlet. All catalog performance data is
based on this configuration.
4. Free Discharge. Results in the greatest velocity
pressure losses. Not recommended.
Data for calculating velocity pressure is shown on the
fan performance pages.
1. Ducted Outlet with Outlet Cone
2. Free Discharge with Outlet Cone
3. Ducted Outlet
®
4. Free Discharge
6
Belt Drive Selection
A. Use the Quick Selection Chart below to find the most efficient fan.
B. Use the appropriate Performance Tables (Pages 8 - 18) to find fan RPM and horsepower.
How to Select a Fan Size
How to Use the Performance Tables
Example: 10,000 cfm at 2.0 in. wg
Outlet Conditions
Procedure
Ducted without Cone
or
Free with Cone
Enter the table with CFM
and static pressure. No
corrections required.
1. Enter the bottom scale with CFM. 10,000 cfm
2. Enter the left scale with static pressure. 2.0 in. wg
3. Select fan size at the point where CFM and static
pressure intersect. Fan size 30
Ducted with Cone
How to Select a Hub Size
1. One or more hub sizes are shown with each fan size
in the performance tables.
Subtract the “Ducted
Cone Regain” from the
specified static pressure.
Enter the table with
corrected static pressure
and CFM.
Free without Cone
Not Recommended
2. Select the hub size which results in the lowest Bhp
for the specified CFM and static pressure. As a rule
of thumb use smaller hubs for lower static pressures
and larger hubs for higher static pressures.
10
9
8
7
6
5
4
Static Pressure (in. wg)
3
2
18
1.0
0.9
0.8
0.7
0.6
0.5
20
24
30
36
42
48
54
60
66
72
0.4
0.3
0.2
0.1
1
2
3
4
5
6
7 8 9 10
20
30
40
50 60 70 80 90 100
CFM x 1,000
QUICKSELECTION
SELECTIONCHART
CHART- BELT
- BELT
DRIVE
VANE
AXIAL
FANS
QUICK
DRIVE
VANE
AXIAL
FANS
7
®
VAB-18F14
Fan Outlet Area = 1.84 ft.2
Cone Outlet Area = 2.89 ft.
2
CFM
1500
OV
815
Ducted
Cone
Regain
Max. Motor Frame Size = 256T
Maximum RPM Class I = 3440
Tip Speed = 4.79 x RPM
Maximum RPM Class II = 4332
STATIC PRESSURE (in. wg)
0.25
0.50
1.0
1.5
2.0
3.0
4.0
6.0
8.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
0.02
871
0.15 1002 0.23 1263 0.44
2000 1087
0.04
1085 0.27 1184 0.37 1379 0.59 1572 0.86 1770 1.19
2500 1359
0.06
1311 0.47 1392 0.58 1549 0.83 1705 1.12 1861 1.44 2175 2.22
3000 1630
0.08
1545 0.76 1611 0.89 1742 1.16 1874 1.47 2005 1.81 2264 2.59 2527 3.51
3500 1902
0.11
1781 1.16 1838 1.31 1953 1.62 2065 1.95 2177 2.31 2400 3.11 2624 4.03 3071 6.24
4000 2174
0.14
2020 1.68 2071 1.85 2171 2.19 2270 2.55 2369 2.94 2562 3.78 2758 4.72 3144 6.89 3540 9.54
4500 2446
0.18
2260 2.35 2306 2.53 2393 2.91 2485 3.31 2571 3.72 2747 4.62 2919 5.59 3266 7.81 3610 10.4
5000 2717
0.22
2502 3.17 2543 3.38 2623 3.79 2704 4.22 2784 4.67 2940 5.61 3098 6.64 3410 8.92 3723 11.5
5500 2989
0.27
2744 4.17 2782 4.40 2856 4.85 2926 5.31 3002 5.80 3144 6.80 3289 7.89 3572 10.2 3851 12.9
6000 3261
0.32
2986 5.37 3022 5.62 3090 6.11 3156 6.61 3222 7.12 3357 8.21 3484 9.31 3748 11.8 4011 14.5
6500 3533
0.38
3229 6.78 3262 7.05 3326 7.58 3388 8.12 3447 8.66 3573 9.82 3694 11.0 3938 13.6 4174 16.3
7000 3804
0.44
3473 8.43 3504 8.71 3563 9.29 3621 9.86 3677 10.5 3793 11.7 3907 12.9 4131 15.6
7500 4076
0.50
3717 10.3 3745 10.6 3802 11.2 3856 11.9 3909 12.5 4014 13.7 4124 15.1 4329 17.8
8000 4348
0.57
3961 12.5 3988 12.8 4041 13.5 4092 14.1 4143 14.8 4240 16.1
8500 4620
0.65
4205 14.9 4231 15.3 4281 16.0 4329 16.7
VAB-20F14
Fan Outlet Area = 2.26 ft.2
Cone Outlet Area = 3.41 ft.
2
Max. Motor Frame Size = 256T
Maximum RPM Class I = 3095
Tip Speed = 5.32 x RPM
Maximum RPM Class II = 3898
STATIC PRESSURE (in. wg)
Ducted
0.25
0.50
1.0
1.5
2.0
3.0
4.0
6.0
8.0
Cone
Regain RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
CFM
OV
2500
1106
0.04
1005 0.28 1105 0.40 1311 0.69 1510 1.03
3000
1327
0.05
1169 0.42 1252 0.56 1422 0.87 1594 1.23 1760 1.65
3500
1549
0.07
1338 0.62 1410 0.77 1554 1.10 1701 1.49 1848 1.92 2130 2.90
4000
1770
0.09
1511 0.88 1573 1.04 1699 1.40 1827 1.81 1955 2.26 2209 3.28 2454 4.43
4500
1991
0.12
1686 1.21 1739 1.39 1849 1.77 1963 2.20 2078 2.68 2305 3.73 2529 4.91
5000
2212
0.15
1862 1.61 1910 1.81 2010 2.23 2111 2.68 2211 3.17 2418 4.27 2623 5.49 3020 8.27
5500
2434
0.18
2038 2.10 2083 2.31 2173 2.77 2261 3.24 2356 3.77 2543 4.90 2730 6.16 3095 9.00
6000
2655
0.21
2216 2.68 2257 2.92 2338 3.40 2422 3.91 2505 4.45 2675 5.63 2845 6.93 3189 9.86 3521 13.2
6500
2876
0.25
2394 3.37 2432 3.62 2505 4.13 2584 4.68 2659 5.25 2817 6.48 2975 7.82 3290 10.8 3602 14.2
7000
3097
0.29
2572 4.17 2608 4.43 2677 4.98 2748 5.56 2820 6.16 2964 7.44 3108 8.82 3403 11.9 3696 15.4
7500
3319
0.33
2751 5.08 2785 5.37 2849 5.95 2914 6.56 2982 7.20 3114 8.52 3251 9.96 3524 13.1 3798 16.6
8000
3540
0.38
2930 6.12 2962 6.43 3023 7.05 3081 7.68 3146 8.36 3269 9.74 3398 11.2 3654 14.5
8500
3761
0.43
3110 7.30 3139 7.63 3197 8.29 3253 8.95 3312 9.65 3430 11.1 3548 12.6 3787 16.0
9000
3982
0.48
3289 8.63 3317 8.97 3372 9.67 3425 10.4 3479 11.1 3592 12.6 3699 14.2
9500
4204
0.53
3469 10.1 3495 10.5 3548 11.2 3599 11.9 3648 12.7 3755 14.3 3859 15.9
10000 4425
0.59
3649 11.7 3674 12.1 3724 12.9 3773 13.7 3820 14.5
Performance certified is for model VAB installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
®
8
VAB-24F14
Fan Outlet Area = 3.24 ft.2
Cone Outlet Area = 5.03 ft.
2
Max. Motor Frame Size = 286T
Maximum RPM Class I = 2579
Tip Speed = 6.36 x RPM
Maximum RPM Class II = 3248
STATIC PRESSURE (in. wg)
Ducted
Cone
0.25
0.50
1.0
1.5
2.0
3.0
4.0
6.0
8.0
Regain RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
CFM
OV
5000
1543
0.07
882
6000
1852
0.10
1024 0.68 1101 0.93 1258 1.52 1412 2.21 1557 2.98
7000
2160
0.14
1173 0.99 1238 1.27 1371 1.90 1505 2.62 1636 3.44 1883 5.26
8000
2469
0.18
1324 1.39 1378 1.69 1494 2.37 1611 3.13 1730 3.99 1956 5.90 2168 8.03
9000
2778
0.23
1476 1.89 1524 2.22 1627 2.95 1731 3.77 1833 4.65 2041 6.64 2238 8.86
10000 3086
0.29
1630 2.51 1674 2.87 1765 3.66 1855 4.51 1952 5.45 2139 7.52 2323 9.82 2669 15.0
11000 3395
0.35
1784 3.26 1824 3.66 1905 4.49 1990 5.41 2074 6.38 2243 8.52 2415 10.9 2740 16.3 3045 22.2
12000 3704
0.42
1939 4.15 1976 4.58 2048 5.46 2127 6.44 2202 7.46 2361 9.70 2517 12.2 2824 17.7 3114 23.8
13000 4012
0.49
2094 5.20 2129 5.66 2196 6.61 2267 7.63 2338 8.71 2482 11.0 2624 13.6 2910 19.2 3189 25.6
14000 4321
0.57
2250 6.42 2283 6.92 2346 7.93 2408 8.99 2476 10.1 2605 12.5 2743 15.2 3011 21.0
15000 4630
0.65
2407 7.81 2437 8.35 2496 9.43 2553 10.5 2616 11.7 2738 14.2 2864 17.0 3114 22.9
16000 4938
0.74
2563 9.41 2592 9.97 2648 11.1 2701 12.3 2757 13.5 2875 16.2 2988 18.9 3223 25.1
17000 5247
0.83
2720 11.2 2747 11.8 2800 13.0 2851 14.3 2900 15.5 3013 18.3 3119 21.2
18000 5556
0.93
2877 13.2 2902 13.9 2953 15.1 3001 16.4 3049 17.8 3152 20.6
19000 5864
1.04
3034 15.5 3058 16.1 3106 17.5 3152 18.9 3198 20.3
0.46
976
0.68 1161 1.23 1334 1.88
VAB-24F17
Fan Outlet Area = 3.24 ft.2
Cone Outlet Area = 5.03 ft.
2
Max. Motor Frame Size = 286T
Maximum RPM Class I = 2579
Tip Speed = 6.36 x RPM
Maximum RPM Class II = 3248
STATIC PRESSURE (in. wg)
Ducted
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
Cone
Regain RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
CFM
OV
4000
1235
0.05
1161 1.09 1435 2.10
4500
1389
0.06
1244 1.30 1483 2.34
5000
1543
0.07
1333 1.56 1545 2.62 1766 3.92
5500
1698
0.09
1428 1.86 1617 2.96 1816 4.29 2018 5.81
6000
1852
0.10
1526 2.21 1696 3.35 1876 4.71 2060 6.25 2245 7.96
6500
2006
0.12
1627 2.63 1783 3.81 1945 5.19 2112 6.75 2283 8.49
7000
2160
0.14
1731 3.10 1871 4.32 2022 5.74 2176 7.33 2333 9.10 2492 11.0
7500
2315
0.16
1835 3.63 1967 4.91 2103 6.36 2245 7.98 2391 9.77 2539 11.7 2687 13.8
8000
2469
0.18
1941 4.23 2063 5.56 2190 7.06 2322 8.71 2456 10.5 2591 12.5 2732 14.6 2871 16.8 3008 19.1
8500
2623
0.21
2047 4.90 2161 6.29 2279 7.82 2401 9.51 2528 11.4 2656 13.3 2784 15.5 2915 17.7 3047 20.1
9000
2778
0.23
2155 5.65 2262 7.09 2373 8.68 2488 10.4 2604 12.3 2722 14.3 2845 16.4 2967 18.7 3090 21.1
9500
2932
0.26
2264 6.49 2365 7.99 2469 9.62 2576 11.4 2684 13.3 2798 15.3 2910 17.5 3026 19.8 3142 22.2
10000 3086
0.29
2373 7.41 2469 8.97 2566 10.7 2666 12.5 2771 14.4 2875 16.5 2982 18.7 3091 21.0 3200 23.4
10500 3241
0.32
2483 8.41 2574 10.0 2664 11.8 2761 13.6 2858 15.6 2956 17.7 3059 19.9 3159 22.3
11000 3395
0.35
2593 9.52 2679 11.2 2766 13.0 2857 14.9 2947 16.9 3043 19.1 3136 21.3 3235 23.7
11500 3549
0.38
2704 10.7 2785 12.4 2869 14.3 2954 16.3 3041 18.3 3131 20.5 3221 22.8
Performance certified is for model VAB installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
9
®
VAB-30F14
Fan Outlet Area = 5.03 ft.2
Cone Outlet Area = 7.22 ft.
2
CFM
OV
Max. Motor Frame Size = 326T
Maximum RPM Class I = 2064
Tip Speed = 7.92 x RPM
Maximum RPM Class II = 2599
STATIC PRESSURE (in. wg)
Ducted
0.25
0.50
0.75
1.0
1.5
2.0
3.0
4.0
6.0
Cone
Regain RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
10000 1988
0.12
868
1.24
944
1.72 1017 2.25 1087 2.82 1217 4.08 1338 5.50
12000 2386
0.17
1013 1.90 1078 2.45 1141 3.04 1201 3.67 1318 5.04 1427 6.54 1629 9.93
14000 2783
0.23
1161 2.79 1218 3.42 1273 4.08 1326 4.77 1430 6.26 1529 7.86 1715 11.4 1887 15.4
16000 3181
0.31
1311 3.96 1361 4.66 1411 5.39 1458 6.15 1552 7.76 1642 9.48 1813 13.2 1973 17.4 2269 26.9
18000 3579
0.39
1463 5.44 1508 6.21 1552 7.02 1596 7.85 1680 9.59 1763 11.4 1920 15.4 2069 19.8 2347 29.5
20000 3976
0.48
1616 7.26 1657 8.11 1697 8.99 1736 9.90 1813 11.8 1889 13.7 2035 18.0 2174 22.5 2435 32.7
22000 4374
0.58
1770 9.47 1807 10.4 1844 11.4 1880 12.3 1951 14.4 2021 16.5 2156 20.9 2286 25.1 2532 36.2
24000 4771
0.69
1925 12.1 1958 13.1 1992 14.1 2026 15.2 2092 17.4 2156 19.6 2282 24.3 2403 29.4
26000 5169
0.81
2080 15.2 2111 16.3 2142 17.4 2173 18.5 2234 20.8 2295 23.2 2412 28.2 2527 33.5
28000 5567
0.94
2235 18.8 2264 20.0 2293 21.1 2322 22.4 2379 24.8 2436 27.4 2546 32.6
30000 5964
1.08
2391 22.9 2418 24.2 2445 25.4 2471 26.7 2526 29.4 2578 32.0
VAB-30F17
Fan Outlet Area = 5.03 ft.2
Cone Outlet Area = 7.22 ft.
2
CFM
OV
Max. Motor Frame Size = 326T
Maximum RPM Class I = 2064
Tip Speed = 7.92 x RPM
Maximum RPM Class II = 2599
STATIC PRESSURE (in. wg)
Ducted
0.50
0.75
1.0
1.5
2.0
3.0
4.0
6.0
8.0
Cone
Regain RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
8000
1590
0.08
856
10000
1988
0.12
1011 1.95 1063 2.41 1116 2.90 1222 4.01 1326 5.24 1527 8.08 1716 11.3
1.26
922
1.67
988
2.13 1117 3.16 1241 4.33
12000
2386
0.17
1175 2.92 1218 3.44 1262 3.98 1350 5.17 1438 6.48 1612 9.44 1780 12.8
14000
2783
0.23
1344 4.23 1381 4.80 1418 5.40 1494 6.69 1569 8.08 1720 11.2 1868 14.7 2155 22.7 2423 31.8
16000
3181
0.31
1516 5.93 1549 6.57 1581 7.23 1647 8.62 1713 10.1 1845 13.4 1977 17.0 2235 25.3 2482 34.7
18000
3579
0.39
1691 8.08 1719 8.77 1748 9.50 1805 11.0 1865 12.6 1982 16.1 2100 19.9 2332 28.4 2560 38.0
20000
3976
0.48
1866 10.7 1892 11.5 1918 12.3 1970 13.9 2022 15.6 2127 19.3 2233 23.2 2445 32.1
22000
4374
0.58
2043 13.9 2067 14.8 2089 15.6 2137 17.4 2184 19.2 2281 23.1 2377 27.2 2569 36.4
VAB-30F21
Fan Outlet Area = 5.03 ft.2
Max. Motor Frame Size = 326T
Maximum RPM Class I = 2064
Cone Outlet Area = 7.22 ft.2
Tip Speed = 7.92 x RPM
Maximum RPM Class II = 2599
STATIC PRESSURE (in. wg)
Ducted
1.0
1.5
2.0
3.0
4.0
5.0
6.0
7.0
8.0
Cone
Regain RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
CFM
OV
6000
1193
0.04
931
8000
1590
0.08
1099 2.36 1190 3.17 1286 4.09 1476 6.02
10000
1988
0.12
1298 3.64 1364 4.50 1434 5.45 1588 7.68 1743 10.2 1891 13.0
12000
2386
0.17
1510 5.45 1564 6.41 1618 7.42 1737 9.72 1863 12.4 1993 15.3 2122 18.5 2245 21.8 2363 25.2
14000
2783
0.23
1732 7.91 1775 8.96 1821 10.1 1917 12.5 2017 15.2 2125 18.2 2237 21.5 2347 25.0 2458 28.7
16000
3181
0.31
1959 11.1 1993 12.2 2032 13.5 2111 16.1 2198 18.9 2284 21.9 2380 25.3 2473 28.8 2573 32.7
18000
3579
0.39
2187 15.2 2218 16.4 2248 17.7 2320 20.5 2389 23.5 2468 26.7 2545 30.1
20000
3976
0.48
2416 20.2 2445 21.6 2473 23.0 2532 25.9 2597 29.1
1.54 1061 2.31 1181 3.15
Performance certified is for model VAB installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
®
10
VAB-36F14
Fan Outlet Area = 7.22 ft.2
Cone Outlet Area = 10.56 ft.
2
Max. Motor Frame Size = 326T
Maximum RPM Class I = 1719
Tip Speed = 9.49 x RPM
Maximum RPM Class II = 2165
STATIC PRESSURE (in. wg)
Ducted
0.25
0.50
0.75
1.0
1.5
2.0
3.0
4.0
5.0
Cone
Regain RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
CFM
OV
12000
1662
0.08
676
1.13
758
1.74
835
2.42
910
3.15
14000
1939
0.11
763
1.57
834
2.24
903
2.98
969
3.77 1096 5.50
16000
2216
0.15
853
2.13
916
2.86
977
3.66 1037 4.51 1152 6.37 1261 8.38
18000
2493
0.19
944
2.82 1001 3.62 1056 4.48 1110 5.40 1215 7.38 1316 9.52
20000
2770
0.23
1037 3.67 1088 4.53 1138 5.46 1188 6.44 1285 8.54 1378 10.8 1555 15.7
22000
3047
0.28
1131 4.69 1178 5.63 1224 6.62 1269 7.66 1358 9.88 1444 12.3 1611 17.5 1768 23.0
24000
3324
0.34
1225 5.91 1268 6.91 1310 7.96 1353 9.07 1436 11.4 1516 13.9 1671 19.4 1820 25.2 1962 31.4
26000
3601
0.39
1320 7.33 1360 8.40 1400 9.53 1439 10.7 1515 13.2 1591 15.8 1737 21.5 1877 27.6 2012 34.1
28000
3878
0.46
1416 8.97 1453 10.1 1490 11.3 1526 12.5 1598 15.1 1669 17.9 1807 23.8 1939 30.2 2068 37.0
30000
4155
0.52
1512 10.9 1547 12.1 1581 13.3 1615 14.6 1683 17.4 1749 20.2 1879 26.4 2005 33.0 2126 40.0
32000
4432
0.60
1608 13.0 1641 14.3 1673 15.6 1706 17.0 1769 19.8 1832 22.9 1954 29.3 2074 36.1
34000
4709
0.67
1705 15.4 1736 16.8 1766 18.2 1797 19.6 1856 22.6 1916 25.7 2033 32.4 2146 39.5
36000
4986
0.75
1802 18.1 1831 19.6 1859 21.0 1889 22.6 1945 25.7 2002 28.9 2112 35.8
38000
5263
0.84
1898 21.1 1926 22.7 1954 24.2 1981 25.8 2035 29.1 2088 32.4
40000
5540
0.93
1995 24.5 2022 26.1 2048 27.7 2074 29.4 2126 32.8
VAB-36F17
Fan Outlet Area = 7.22 ft.2
Cone Outlet Area = 10.56 ft.
2
CFM
OV
Ducted
Cone
Regain
Max. Motor Frame Size = 326T
Maximum RPM Class I = 1719
Tip Speed = 9.49 x RPM
Maximum RPM Class II = 2165
STATIC PRESSURE (in. wg)
0.25
0.50
0.75
1.0
1.5
2.0
3.0
4.0
6.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
12000
1662
0.08
713
1.2
778
1.76
843
2.40
907
3.09 1032 4.66 1158 6.47
13500
1870
0.11
786
1.55
845
2.16
903
2.84
960
3.57 1073 5.19 1184 7.03
15000
2078
0.13
860
1.97
914
2.64
967
3.35 1019 4.12 1121 5.81 1221 7.69 1422 12.0
16500
2285
0.16
936
2.48
985
3.19 1034 3.96 1081 4.77 1175 6.53 1267 8.48 1449 12.9 1632 18.0
18000
2493
0.19
1012 3.07 1058 3.84 1102 4.65 1146 5.51 1233 7.36 1318 9.37 1486 13.9 1653 19.0
19500
2701
0.22
1089 3.77 1131 4.59 1173 5.45 1214 6.35 1295 8.29 1374 10.4 1530 15.0 1683 20.2
21000
2909
0.26
1167 4.57 1206 5.45 1245 6.36 1283 7.31 1358 9.32 1432 11.5 1578 16.3 1721 21.6 2009 33.8
22500
3116
0.29
1245 5.49 1281 6.42 1317 7.38 1354 8.38 1425 10.5 1494 12.7 1631 17.6 1766 23.1 2033 35.5
24000
3324
0.34
1323 6.54 1357 7.51 1392 8.53 1426 9.58 1492 11.8 1557 14.1 1687 19.2 1814 24.7 2064 37.3
25500
3532
0.38
1402 7.71 1434 8.73 1466 9.81 1498 10.9 1561 13.2 1623 15.6 1745 20.9 1866 26.6 2103 39.3
27000
3740
0.42
1480 9.03 1510 10.1 1541 11.2 1572 12.4 1632 14.8 1691 17.3 1807 22.7 1921 28.5 2146 41.5
28500
3947
0.47
1559 10.5 1588 11.6 1617 12.8 1646 14.0 1703 16.5 1759 19.1 1870 24.7 1979 30.7
30000
4155
0.52
1639 12.1 1666 13.3 1693 14.5 1721 15.8 1775 18.4 1829 21.1 1934 26.8 2038 33.0
31500
4363
0.58
1718 13.9 1744 15.1 1770 16.4 1796 17.7 1848 20.4 1900 23.2 2000 29.1 2100 35.5
Performance certified is for model VAB installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
11
®
VAB-36F21
Fan Outlet Area = 7.22 ft.2
Cone Outlet Area = 10.56 ft.
2
CFM
9000
OV
Ducted
Cone
Regain
Max. Motor Frame Size = 365T
Maximum RPM Class I = 1719
Tip Speed = 9.49 x RPM
Maximum RPM Class II = 2165
STATIC PRESSURE (in. wg)
0.50
1.0
1.5
2.0
3.0
4.0
5.0
6.0
7.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
1247
0.05
656
1.19
787
2.23
912
3.48
10500 1454
0.06
724
1.52
838
2.61
949
3.92 1056 5.40
12000 1662
0.08
798
1.93
896
3.09
995
4.44 1093 5.98 1276 9.48
13500 1870
0.11
875
2.45
962
3.67 1050 5.09 1138 6.66 1308 10.3
15000 2078
0.13
954
3.06 1032 4.37 1110 5.84 1190 7.48 1347 11.2 1497 15.4
16500 2285
0.16
1036 3.80 1105 5.19 1177 6.73 1249 8.42 1392 12.2 1533 16.5 1667 21.3
18000 2493
0.19
1118 4.67 1181 6.14 1246 7.75 1312 9.51 1444 13.4 1575 17.8 1702 22.6 1825 27.9 1943 33.4
19500 2701
0.22
1201 5.67 1259 7.23 1319 8.92 1379 10.7 1501 14.8 1622 19.3 1742 24.2 1860 29.5 1973 35.2
21000 2909
0.26
1284 6.82 1338 8.48 1394 10.3 1449 12.2 1562 16.3 1676 20.9 1788 25.9 1899 31.3 2007 37.1
22500 3116
0.29
1369 8.15 1419 9.89 1470 11.8 1522 13.7 1627 18.0 1733 22.7 1838 27.8 1943 33.4 2046 39.2
24000 3324
0.34
1454 9.65 1501 11.5 1548 13.4 1597 15.5 1694 19.9 1793 24.7 1893 30.0 1991 35.6 2089 41.5
25500 3532
0.38
1540 11.3 1583 13.3 1627 15.3 1673 17.4 1765 22.0 1858 27.0 1951 32.3 2045 38.0 2137 44.1
27000 3740
0.42
1626 13.2 1666 15.2 1708 17.4 1751 19.6 1837 24.3 1924 29.4 2012 34.9 2100 40.7
28500 3947
0.47
1712 15.3 1749 17.4 1790 19.6 1829 21.9 1910 26.8 1993 32.1 2077 37.7 2160 43.6
30000 4155
0.52
1798 17.6 1833 19.8 1872 22.1 1909 24.5 1986 29.6 2065 35.0 2143 40.7
31500 4363
0.58
1884 20.2 1918 22.5 1954 24.9 1990 27.3 2063 32.6 2137 38.1
VAB-36F26
Fan Outlet Area = 7.22 ft.2
Max. Motor Frame Size = 365T
Maximum RPM Class I = 1719
Cone Outlet Area = 10.56 ft.2
Tip Speed = 9.49 x RPM
Maximum RPM Class II = 2165
CFM
OV
Ducted
Cone
Regain
9000
1247
0.05
STATIC PRESSURE (in. wg)
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
802
2.51
979
4.70
10000 1385
0.06
854
2.96 1014 5.20
11000 1524
0.07
908
3.49 1055 5.81 1199 8.61
12000 1662
0.08
966
4.12 1099 6.51 1233 9.36 1365 12.7
13000 1801
0.10
1025 4.83 1148 7.32 1272 10.2 1394 13.5 1515 17.3
14000 1939
0.11
1085 5.64 1200 8.23 1314 11.2 1429 14.6 1543 18.3
15000 2078
0.13
1147 6.57 1254 9.26 1361 12.3 1468 15.7 1575 19.5 1680 23.7
16000 2216
0.15
1210 7.60 1309 10.4 1410 13.5 1511 17.0 1610 20.8 1710 25.0 1809 29.5
17000 2355
0.17
1273 8.76 1367 11.7 1462 14.9 1557 18.5 1651 22.3 1745 26.5 1837 31.0 1932 35.9
18000 2493
0.19
1337 10.0 1426 13.1 1516 16.4 1605 20.0 1694 24.0 1782 28.2 1872 32.7 1959 37.6 2048 42.8
19000 2632
0.21
1402 11.5 1486 14.6 1571 18.1 1654 21.8 1740 25.8 1825 30.1 1908 34.6 1993 39.5 2076 44.6
20000 2770
0.23
1467 13.0 1546 16.3 1627 19.9 1708 23.7 1789 27.8 1868 32.1 1949 36.7 2028 41.6 2108 46.8
21000 2909
0.26
1532 14.7 1609 18.2 1685 21.8 1762 25.7 1838 29.9 1915 34.3 1991 39.0 2067 43.9 2144 49.1
22000 3047
0.28
1598 16.6 1671 20.2 1745 23.9 1817 28.0 1890 32.2 1964 36.7 2036 41.4 2110 46.4
23000 3186
0.31
1665 18.7 1735 22.3 1804 26.2 1873 30.3 1944 34.7 2013 39.3 2084 44.1 2153 49.1
24000 3324
0.34
1731 20.9 1798 24.7 1864 28.7 1932 32.9 1999 37.4 2065 42.0 2133 47.0
Performance certified is for model VAB installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
®
12
VAB-42F17
Fan Outlet Area = 9.85 ft.2
Cone Outlet Area = 14.75 ft.
2
Max. Motor Frame Size = 326T
Maximum RPM Class I = 1474
Tip Speed = 11.09 x RPM
Maximum RPM Class II = 1856
STATIC PRESSURE (in. wg)
Ducted
Cone
0.25
0.50
0.75
1.0
1.5
2.0
3.0
4.0
5.0
Regain RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
CFM
OV
16000
1624
0.08
605
1.48
673
2.26
739
3.14
803
4.13
921
6.31
20000
2030
0.12
726
2.41
781
3.29
835
4.28
888
5.35
991
7.74 1089 10.4
24000
2437
0.18
852
3.74
897
4.74
942
5.83
987
6.99 1076 9.57 1163 12.4 1325 18.8 1474 25.8
28000
2843
0.24
980
5.56 1019 6.67 1057 7.86 1096 9.15 1173 11.9 1249 14.9 1397 21.7 1535 29.1 1665 37.2
32000
3249
0.32
1110 7.92 1143 9.15 1177 10.5 1210 11.9 1279 14.8 1347 18.1 1479 25.1 1606 33.0 1728 41.5
36000
3655
0.40
1241 10.9 1270 12.3 1300 13.7 1331 15.2 1391 18.4 1451 21.8 1570 29.3 1687 37.5 1800 46.4
40000
4061
0.50
1373 14.6 1399 16.1 1425 17.7 1453 19.3 1507 22.7 1562 26.4 1670 34.2 1776 42.8
44000
4467
0.60
1505 19.1 1529 20.8 1553 22.5 1577 24.2 1627 27.9 1675 31.6 1774 39.9
48000
4873
0.72
1638 24.5 1660 26.3 1682 28.1 1704 29.9 1749 33.9 1794 37.9
52000
5279
0.84
1770 30.8 1791 32.7 1812 34.7 1832 36.7
VAB-42F21
Fan Outlet Area = 9.85 ft.2
Max. Motor Frame Size = 365T
Maximum RPM Class I = 1474
Cone Outlet Area = 14.75 ft.2
Tip Speed = 11.09 x RPM
Maximum RPM Class II = 1856
STATIC PRESSURE (in. wg)
Ducted
0.50
1.0
1.5
2.0
3.0
4.0
5.0
6.0
7.0
Cone
Regain RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
CFM
OV
12000
1218
0.04
566
1.50
698
2.96
16000
1624
0.08
676
2.32
777
3.95
878
5.87
20000
2030
0.12
799
3.57
880
5.36
962
7.43 1043 9.75 1198 14.9
24000
2437
0.18
929
5.32
996
7.29 1064 9.53 1133 12.0 1267 17.6 1397 23.7 1522 30.3
28000
2843
0.24
1063 7.68 1121 9.88 1179 12.3 1237 14.9 1353 20.8 1469 27.3 1582 34.4 1691 41.8 1796 49.6
32000
3249
0.32
1200 10.7 1250 13.2 1301 15.8 1352 18.6 1454 24.7 1555 31.6 1657 39.0 1757 46.9 1853 55.2
36000
3655
0.40
1338 14.6 1381 17.2 1428 20.1 1472 23.1 1564 29.6 1655 36.8 1744 44.4 1836 52.8
40000
4061
0.50
1477 19.4 1517 22.3 1558 25.3 1599 28.5 1680 35.4 1761 42.8 1844 50.9
974
7.98
VAB-42F26
Fan Outlet Area = 9.85 ft.2
Max. Motor Frame Size = 365T
Maximum RPM Class I = 1474
Cone Outlet Area = 14.75 ft.2
Tip Speed = 11.09 x RPM
Maximum RPM Class II = 1856
STATIC PRESSURE (in. wg)
Ducted
0.50
1.0
1.5
2.0
3.0
4.0
5.0
6.0
7.0
Cone
Regain RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
CFM
OV
10000
1015
0.03
564
1.29
687
2.52
12500
1269
0.05
650
1.82
748
3.14
847
4.71
938
6.43
15000
1523
0.07
745
2.57
825
3.97
908
5.63
991
7.51 1143 11.6
17500
1777
0.10
846
3.57
912
5.06
982
6.81 1054 8.77 1194 13.2 1324 18.0
20000
2030
0.12
951
4.86 1007 6.47 1066 8.29 1128 10.3 1253 15.0 1375 20.2 1489 25.7
22500
2284
0.16
1056 6.47 1105 8.20 1156 10.1 1210 12.2 1321 17.1 1432 22.5 1540 28.3 1642 34.5 1738 40.8
25000
2538
0.20
1164 8.45 1208 10.3 1253 12.4 1300 14.6 1398 19.5 1497 25.1 1597 31.2 1695 37.7 1788 44.5
27500
2792
0.24
1272 10.9 1312 12.9 1351 15.0 1394 17.3 1480 22.4 1570 28.2 1662 34.4 1752 41.2 1842 48.3
30000
3046
0.28
1382 13.7 1417 15.8 1453 18.1 1491 20.5 1569 25.8 1651 31.7 1734 38.2 1817 45.1
Performance certified is for model VAB installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
13
®
VAB-48F21
Fan Outlet Area = 12.83 ft.2
Cone Outlet Area = 20.46 ft.
2
Max. Motor Frame Size = 365T
Maximum RPM Class I = 1290
Tip Speed = 12.66 x RPM
Maximum RPM Class II = 1624
STATIC PRESSURE (in. wg)
Ducted
0.25
0.50
0.75
1.0
1.5
2.0
3.0
4.0
5.0
Cone
Regain RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
CFM
OV
25000
1949
0.12
552
2.70
605
3.88
657
5.20
708
6.66
807
9.93
900
13.6
30000
2338
0.17
643
4.10
687
5.43
731
6.89
775
8.45
860
11.9
943
15.8
35000
2728
0.23
737
5.99
775
7.48
813
9.08
850
10.8
925
14.5
998
18.6 1138 27.8 1270 38.3
40000
3118
0.29
832
8.44
865
10.1
898
11.8
932
13.7
997
17.7 1062 22.0 1189 31.6 1310 42.5 1427 54.4
45000
3507
0.37
929
11.5
958
13.4
987
15.3 1016 17.3 1075 21.5 1134 26.2 1248 36.2 1359 47.4 1467 59.6
50000
3897
0.46
1026 15.4 1052 17.4 1079 19.5 1105 21.6 1158 26.2 1210 31.0 1315 41.6 1417 53.2 1516 65.8
55000
4287
0.56
1123 20.0 1147 22.2 1171 24.4 1196 26.8 1243 31.6 1292 36.8 1387 47.9 1482 60.0 1574 73.0
60000
4677
0.66
1221 25.5 1243 27.9 1265 30.3 1287 32.8 1331 38.0 1375 43.4 1463 55.1 1550 67.6
65000
5066
0.78
1319 32.0 1340 34.6 1360 37.2 1380 39.8 1421 45.4 1461 51.0 1543 63.3
70000
5456
0.90
1418 39.5 1437 42.3 1456 45.1 1474 47.9 1513 53.8 1550 59.8
75000
5846
1.04
1516 48.2 1534 51.1 1552 54.1 1569 57.1 1605 63.3
VAB-48F26
Fan Outlet Area = 12.83 ft.2
Cone Outlet Area = 20.46 ft.
2
Max. Motor Frame Size = 365T
Maximum RPM Class I = 1290
Tip Speed = 12.66 x RPM
Maximum RPM Class II = 1624
STATIC PRESSURE (in. wg)
Ducted
0.50
1.0
1.5
2.0
3.0
4.0
5.0
6.0
7.0
Cone
Regain RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
CFM
OV
20000
1559
0.07
545
2.88
640
4.99
705
6.72
25000
1949
0.12
639
4.35
715
6.69
768
8.55
865
12.4
30000
2338
0.17
740
6.43
802
9.01
846
11.0
928
15.2 1053 22.4 1173 30.5
35000
2728
0.23
844
9.19
897
12.1
935
14.2 1005 18.7 1113 26.3 1220 34.8 1324 44.1
40000
3118
0.29
951
12.8
997
16.0 1029 18.3 1090 23.0 1185 31.1 1280 40.0 1373 49.7 1464 60.0 1554 71.1
45000
3507
0.37
1060 17.3 1100 20.8 1129 23.3 1182 28.4 1266 36.8 1350 46.1 1435 56.2 1518 67.0 1599 78.4
50000
3897
0.46
1169 22.9 1204 26.6 1231 29.4 1278 34.8 1354 43.8 1430 53.5 1504 63.9 1581 75.2
55000
4287
0.56
1279 29.6 1311 33.7 1334 36.7 1379 42.5 1446 51.9 1514 62.1 1584 73.1
VAB-48F30
Fan Outlet Area = 12.83 ft.2
Max. Motor Frame Size = 365T
Maximum RPM Class I = 1290
Cone Outlet Area = 20.46 ft.2
Tip Speed = 12.66 x RPM
Maximum RPM Class II = 1624
STATIC PRESSURE (in. wg)
Ducted
1.0
1.5
2.0
3.0
4.0
5.0
6.0
7.0
8.0
Cone
Regain RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
CFM
OV
15000
1169
0.04
582
3.63
20000
1559
0.07
655
5.00
733
7.23
810
9.73
25000
1949
0.12
750
7.02
812
9.45
874
12.2
30000
2338
0.17
857
9.83
906
12.5
958
15.4 1062 21.8 1165 29.0 1265 36.8
998
18.2
35000
2728
0.23
970
13.5 1011 16.4 1053 19.5 1142 26.4 1231 34.0 1320 42.2 1408 51.0 1492 60.3
40000
3118
0.29
1087 18.3 1123 21.5 1159 24.8 1234 32.1 1311 40.0 1390 48.7 1467 57.9 1545 67.7 1621 77.8
45000
3507
0.37
1206 24.2 1237 27.7 1270 31.3 1335 39.0 1402 47.4 1471 56.4 1541 66.0 1610 76.2
50000
3897
0.46
1326 31.4 1355 35.2 1383 39.1 1441 47.4 1501 56.2 1562 65.6
55000
4287
0.56
1449 40.1 1474 44.2 1500 48.4 1553 57.3 1606 66.6
Performance certified is for model VAB installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
®
14
VAB-54F21
Fan Outlet Area = 16.50 ft.2
Cone Outlet Area = 24.67 ft.
2
Max. Motor Frame Size = 365T
Maximum RPM Class I = 1145
Tip Speed = 14.35 x RPM
Maximum RPM Class II = 1442
STATIC PRESSURE (in. wg)
Ducted
0.25
0.50
0.75
1.0
1.5
2.0
3.0
4.0
5.0
Cone
Regain RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
CFM
OV
24000
30000
1455
1818
0.06
0.10
433
508
1.97
3.07
496
561
3.24
4.50
560
614
4.71
6.11
620
666
6.36
7.88
763
11.9
853
16.4
36000
42000
2182
2545
0.14
0.20
590
675
4.63
6.71
634
713
6.23
8.51
679
751
7.99
10.4
723
789
9.91
12.5
809
865
14.2
17.0
890
938
18.9 1041 29.7
22.0 1077 33.3 1204 46.1
48000
54000
2909
3273
0.26
0.32
761
849
9.43
12.9
794
878
11.4
15.1
828
907
13.5
17.3
861
937
15.8
19.8
928
996
20.6 993 25.9 1120 37.7 1240 50.9 1352 65.4
24.9 1056 30.5 1171 42.8 1283 56.5 1389 71.5
60000
66000
3636
4000
0.40
0.48
937 17.1 963 19.5 990 22.0 1016 24.6 1069 30.1 1123 36.0 1229 48.9 1332 63.1 1431 78.5
1026 22.2 1049 24.8 1073 27.5 1097 30.3 1146 36.2 1195 42.4 1292 55.9 1387 70.6
72000
78000
4364
4727
0.58
0.68
1115 28.3 1137 31.1 1158 34.0 1181 37.0 1225 43.3 1269 49.8 1358 63.9
1205 35.5 1225 38.5 1244 41.6 1265 44.8 1305 51.4 1347 58.4 1429 73.1
84000
90000
5091
5455
0.79
0.90
1294 43.8 1313 47.0 1331 50.3 1350 53.7 1388 60.8 1426 68.1
1384 53.3 1402 56.8 1419 60.3 1435 63.9
VAB-54F26
Fan Outlet Area = 16.50 ft.2
Cone Outlet Area = 24.67 ft.
2
Max. Motor Frame Size = 405T
Maximum RPM Class I = 1145
Tip Speed = 14.35 x RPM
Maximum RPM Class II = 1442
STATIC PRESSURE (in. wg)
Ducted
0.50
0.75
1.0
1.5
2.0
3.0
4.0
5.0
6.0
Cone
Regain RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
CFM
OV
18000
24000
1091
1455
0.04
0.06
451
523
2.29
3.34
516
574
3.46
4.63
577
624
4.78
6.07
719
9.33
808
13.0
30000
36000
1818
2182
0.10
0.14
608
699
4.89
7.03
649
734
6.34
8.64
690
768
7.90
10.4
770
836
11.4
14.1
848
903
15.3 993 24.2
18.3 1032 27.7 1154 38.3
42000
48000
2545
2909
0.20
0.26
794
892
9.86
13.5
824
917
11.7
15.5
853
944
13.6
17.6
912
995
17.7 970 22.0 1085 31.9 1195 42.9 1301 55.1 1402 68.1
22.0 1047 26.7 1149 37.1 1248 48.6 1345 61.2 1439 74.6
54000
60000
3273
3636
0.32
0.40
991 18.1 1014 20.3 1037 22.5 1083 27.3 1129 32.3 1221 43.3 1310 55.3 1398 68.3
1091 23.7 1112 26.1 1133 28.5 1175 33.7 1216 39.1 1299 50.7 1380 63.2
66000
4000
0.48
1193 30.4 1212 33.1 1231 35.7 1268 41.2 1306 47.0 1381 59.2
VAB-54F30
Fan Outlet Area = 16.50 ft.2
Max. Motor Frame Size = 405T
Maximum RPM Class I = 1145
Cone Outlet Area = 24.67 ft.2
Tip Speed = 14.35 x RPM
Maximum RPM Class II = 1442
STATIC PRESSURE (in. wg)
Ducted
0.50
1.0
1.5
2.0
3.0
4.0
5.0
6.0
7.0
Cone
Regain RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
CFM
OV
18000
24000
1091
1455
0.04
0.06
434
516
2.21
3.41
542
598
4.43
5.84
678
8.73
757
12.0
30000
36000
1818
2182
0.10
0.14
610
709
5.21
7.74
673
761
7.87
10.7
739
814
11.0
14.0
804
868
14.5
17.7
42000
48000
2545
2909
0.20
0.26
812
917
11.1
15.6
856
955
14.4
19.2
901
993
18.0 946 21.9 1040 30.7 1133 40.5 1224 51.3 1314 62.9 1400 75.0
23.1 1033 27.3 1114 36.5 1196 46.7 1277 57.9 1357 69.8 1437 82.6
54000
60000
3273
3636
0.32
0.40
1023 21.1 1055 25.1 1090 29.4 1124 33.8 1195 43.5 1268 54.2 1341 65.8 1412 78.1
1129 28.0 1159 32.3 1190 36.9 1221 41.7 1284 51.9 1346 63.0 1413 75.1
66000
4000
0.48
1236 36.2 1263 41.0 1290 45.8 1319 51.0 1374 61.8 1433 73.5
931
978
22.4 1049 31.2
26.1 1084 35.5 1186 45.7
Performance certified is for model VAB installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
15
®
VAB-60F26
Fan Outlet Area = 20.29 ft.2
Cone Outlet Area = 30.68 ft.
2
CFM
OV
30000
1479
Max. Motor Frame Size = 405T
Maximum RPM Class I = 1032
Tip Speed = 15.91 x RPM
Maximum RPM Class II = 1299
STATIC PRESSURE (in. wg)
Ducted
0.25
0.50
0.75
1.0
1.5
2.0
2.5
3.0
4.0
Cone
Regain RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
0.07
425
2.72
482
4.28
538
6.06
589
8.06
35000
1725
0.09
479
3.74
528
5.44
576
7.35
623
9.44
712
14.2
40000
1971
0.12
533
5.03
576
6.88
619
8.93
662
11.2
744
16.1
819
21.7
45000
2218
0.15
591
6.64
629
8.67
667
10.9
704
13.2
779
18.4
850
24.1
918
30.4
980
37.2
50000
2464
0.18
649
8.62
682
10.8
716
13.1
751
15.7
819
21.1
885
27.0
949
33.5 1009 40.5
55000
2711
0.22
708
11.0
737
13.3
769
15.9
799
18.5
862
24.2
924
30.4
983
37.1 1041 44.2 1149 59.9
60000
2957
0.26
767
13.8
793
16.3
823
19.0
851
21.8
908
27.8
965
34.3 1021 41.1 1076 48.5 1179 64.5
65000
3204
0.31
826
17.1
851
19.8
877
22.6
904
25.6
956
31.9 1009 38.6 1062 45.8 1112 53.3 1212 69.8
70000
3450
0.36
886
20.9
909
23.8
932
26.7
958
29.9 1005 36.5 1056 43.5 1103 50.9 1153 58.8 1247 75.6
75000
3696
0.41
946
25.2
968
28.3
989
31.5 1012 34.8 1058 41.7 1104 49.0 1150 56.7 1195 64.8 1284 82.0
80000
3943
0.47
1006 30.2 1027 33.4 1047 36.8 1067 40.2 1111 47.5 1152 55.0 1197 63.2 1239 71.5
85000
4189
0.53
1067 35.7 1086 39.2 1105 42.7 1124 46.3 1165 54.0 1205 61.9 1245 70.2 1286 78.9
90000
4436
0.60
1127 42.0 1146 45.6 1164 49.4 1182 53.1 1219 61.1 1258 69.4 1294 77.8
95000
4682
0.66
1188 48.9 1206 52.8 1223 56.7 1240 60.7 1274 68.9
100000 4929
0.74
1248 56.6 1265 60.7 1282 64.8 1298 68.9
VAB-60F30
Fan Outlet Area = 20.29 ft.2
Max. Motor Frame Size = 405T
Maximum RPM Class I = 1032
Cone Outlet Area = 30.68 ft.2
Tip Speed = 15.91 x RPM
Maximum RPM Class II = 1299
STATIC PRESSURE (in. wg)
Ducted
0.50
0.75
1.0
1.5
2.0
2.5
3.0
4.0
5.0
Cone
Regain RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
CFM
OV
24000
1183
0.04
452
3.16
506
4.58
558
6.14
27000
1331
0.05
482
3.73
532
5.23
579
6.87
667
10.5
30000
1479
0.07
516
4.42
560
5.97
603
7.70
687
11.5
33000
1626
0.08
551
5.23
590
6.83
630
8.63
709
12.6
783
16.9
36000
1774
0.10
587
6.16
623
7.84
660
9.70
733
13.8
803
18.3
869
23.2
39000
1922
0.11
625
7.25
658
9.00
691
10.9
759
15.2
825
19.9
889
24.9
949
30.2
42000
2070
0.13
664
8.49
694
10.3
725
12.3
787
16.7
850
21.5
911
26.7
969
32.2
45000
2218
0.15
703
9.88
731
11.8
760
13.8
818
18.3
876
23.3
934
28.7
990
34.4 1096 46.5
48000
2366
0.17
743
11.4
769
13.5
795
15.6
849
20.2
904
25.3
959
30.8 1013 36.7 1116 49.1
51000
2514
0.19
783
13.2
808
15.3
832
17.5
882
22.2
934
27.5
986
33.1 1037 39.1 1136 52.0 1230 65.7
54000
2661
0.21
824
15.1
847
17.3
870
19.6
917
24.5
965
29.9 1014 35.7 1064 41.8 1159 55.0 1250 69.0
57000
2809
0.24
865
17.3
886
19.6
908
22.0
953
27.0
997
32.4 1045 38.4 1090 44.7 1182 58.1 1270 72.6
60000
2957
0.26
906
19.7
926
22.0
947
24.5
988
29.7 1032 35.3 1075 41.3 1120 47.8 1207 61.6 1293 76.3
63000
3105
0.29
948
22.3
966
24.7
986
27.3 1026 32.7 1067 38.5 1107 44.5 1150 51.1 1234 65.2
66000
3253
0.32
990
25.2 1007 27.7 1026 30.3 1064 35.9 1102 41.8 1141 48.1 1181 54.7 1261 69.0
69000
3401
0.35
1031 28.3 1048 30.9 1065 33.6 1102 39.4 1138 45.4 1176 51.9 1212 58.5 1290 73.2
Performance certified is for model VAB installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
®
16
VAB-66F26
Fan Outlet Area = 24.48 ft.2
Cone Outlet Area = 36.67 ft.
2
Max. Motor Frame Size = 405T
Maximum RPM Class I = 938
Tip Speed = 17.48 x RPM
Maximum RPM Class II = 1181
STATIC PRESSURE (in. wg)
Ducted
0.25
0.50
0.75
1.0
1.5
2.0
2.5
3.0
4.0
Cone
Regain RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
CFM
OV
36000
1471
0.07
392
3.17
448
5.09
502
7.32
553
9.84
42000
1716
0.09
441
4.32
489
6.41
536
8.76
582
11.4
668
17.4
48000
1961
0.12
491
5.77
532
8.05
575
10.6
616
13.3
695
19.5
770
26.6
54000
2206
0.15
542
7.58
579
10.1
617
12.8
654
15.7
726
22.1
796
29.3
862
37.3
60000
2451
0.18
595
9.77
628
12.5
662
15.4
695
18.4
762
25.1
826
32.6
888
40.7
947
49.6
66000
2696
0.22
647
12.4
678
15.3
709
18.4
739
21.6
800
28.7
859
36.3
918
44.8
974
53.7 1082 73.8
72000
2941
0.26
701
15.5
729
18.7
757
22.0
785
25.4
841
32.8
896
40.7
951
49.3 1004 58.6 1106 78.7
78000
3186
0.31
755
19.1
781
22.5
807
26.1
832
29.7
884
37.4
936
45.7
987
54.5 1036 64.0 1134 84.6
84000
3431
0.36
810
23.3
834
26.9
857
30.7
882
34.6
929
42.6
978
51.3 1025 60.5 1072 70.1 1164 91.2
90000
3676
0.41
864
28.1
886
32.0
909
36.0
931
40.1
976
48.5 1021 57.5 1066 67.0 1110 77.0
96000
3922
0.47
919
33.6
939
37.6
961
41.9
982
46.2 1023 55.1 1065 64.4 1108 74.3 1150 84.6
102000 4167
0.53
974
39.8
993
44.0 1013 48.5 1033 53.0 1072 62.4 1112 72.1 1151 82.3
108000 4412
0.59
1029 46.7 1047 51.2 1066 55.8 1085 60.6 1122 70.4 1159 80.5
114000 4657
0.66
1084 54.4 1102 59.1 1119 63.9 1137 69.0 1172 79.2
120000 4902
0.73
1140 62.9 1156 67.8 1172 72.9
VAB-66F30
Fan Outlet Area = 24.48 ft.2
Max. Motor Frame Size = 405T
Maximum RPM Class I = 938
Cone Outlet Area = 36.67 ft.2
Tip Speed = 17.48 x RPM
Maximum RPM Class II = 1181
STATIC PRESSURE (in. wg)
Ducted
0.50
0.75
1.0
1.5
2.0
2.5
3.0
4.0
5.0
Cone
Regain RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
CFM
OV
30000
1225
0.05
435
3.95
487
5.72
537
7.68
628
12.1
34000
1389
0.06
466
4.73
512
6.55
559
8.63
645
13.3
723
18.4
38000
1552
0.07
501
5.68
542
7.61
583
9.70
664
14.5
739
19.9
808
25.7
42000
1716
0.09
538
6.81
574
8.81
612
11.0
687
16.0
758
21.6
824
27.5
887
34.0
46000
1879
0.11
577
8.13
609
10.2
643
12.5
711
17.6
779
23.4
843
29.6
903
36.2
50000
2042
0.13
616
9.66
646
11.9
676
14.2
739
19.5
802
25.4
863
31.8
922
38.7 1030 53.3
54000
2206
0.15
657
11.4
684
13.7
712
16.2
769
21.7
826
27.6
885
34.3
941
41.2 1047 56.4 1144 72.9
58000
2369
0.17
698
13.4
723
15.9
748
18.4
801
24.0
855
30.2
909
36.9
963
44.2 1066 59.8 1160 76.4
62000
2533
0.19
739
15.6
762
18.2
786
20.9
835
26.7
885
33.1
935
39.8
987
47.3 1085 63.2 1178 80.5
66000
2696
0.22
781
18.2
803
20.9
825
23.7
870
29.7
917
36.2
965
43.2 1011 50.5 1107 67.0
70000
2859
0.25
823
21.0
844
23.8
864
26.8
906
32.9
950
39.6
995
46.9 1040 54.4 1130 71.1
74000
3023
0.28
866
24.1
886
27.1
905
30.1
945
36.5
985
43.4 1027 50.8 1069 58.6 1154 75.4
78000
3186
0.31
909
27.6
927
30.6
946
33.8
983
40.5 1021 47.6 1060 55.1 1101 63.1 1180 80.0
82000
3350
0.34
953
31.4
969
34.5
987
37.9 1022 44.8 1058 52.0 1095 59.8 1133 68.0
86000
3513
0.37
996
35.6 1011 38.8 1028 42.3 1061 49.5 1096 57.0 1131 64.9 1166 73.2
90000
3676
0.41
1040 40.1 1054 43.5 1070 47.1 1102 54.5 1135 62.3 1167 70.3
Performance certified is for model VAB installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
17
®
VAB-72F26
Fan Outlet Area = 29.07 ft.2
Cone Outlet Area = 43.20 ft.
2
Max. Motor Frame Size = 405T
Maximum RPM Class I = 859
Tip Speed = 19.05 x RPM
Maximum RPM Class II = 1082
STATIC PRESSURE (in. wg)
Ducted
0.25
0.50
0.75
1.0
1.5
2.0
2.5
3.0
4.0
Cone
Regain RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
CFM
OV
35000
1204
0.04
325
2.58
390
4.74
451
7.41
42000
1445
0.06
361
3.48
419
5.80
474
8.55
525
49000
1686
0.09
404
4.67
454
7.19
502
10.1
549
13.3
637
20.8
56000
1926
0.11
448
6.17
492
8.89
535
12.0
577
15.3
658
22.9
11.7
63000
2167
0.14
494
8.02
533
11.0
571
14.2
610
17.8
684
25.6
754
34.5
70000
2408
0.18
541
10.3
575
13.5
610
16.9
646
20.6
713
28.7
780
38.0
842
47.9
903
59.3
77000
2649
0.21
588
12.9
620
16.4
651
20.1
683
24.0
746
32.5
808
41.9
867
52.2
923
63.2
84000
2890
0.25
636
16.1
665
19.9
694
23.8
723
27.8
782
36.8
838
46.4
894
57.0
948
68.4 1051 93.4
91000
3130
0.30
684
19.8
711
23.8
738
28.0
765
32.3
819
41.6
872
51.7
924
62.3
976
74.1 1073 99.3
98000
3371
0.34
733
24.1
758
28.3
783
32.8
808
37.4
858
47.0
908
57.5
957
68.6 1005 80.4
105000 3612
0.40
782
29.0
805
33.5
828
38.2
852
43.1
898
53.1
945
64.0
992
75.5 1037 87.6
112000 3853
0.45
831
34.6
853
39.3
875
44.2
897
49.4
940
60.0
984
71.1 1028 83.1 1071 95.6
119000 4094
0.51
881
40.8
900
45.8
921
51.0
942
56.4
983
67.5 1024 79.0 1065 91.4
126000 4334
0.57
930
47.9
949
53.0
969
58.5
988
64.1 1027 75.8 1066 87.8
133000 4575
0.63
980
55.7
998
61.1 1016 66.8 1035 72.7 1072 84.9
140000 4816
0.70
1030 64.3 1047 70.0 1064 75.9
VAB-72F30
Fan Outlet Area = 29.07 ft.2
Max. Motor Frame Size = 405T
Maximum RPM Class I = 859
Cone Outlet Area = 43.20 ft.2
Tip Speed = 19.05 x RPM
Maximum RPM Class II = 1082
STATIC PRESSURE (in. wg)
Ducted
0.50
0.75
1.0
1.5
2.0
2.5
3.0
4.0
5.0
Cone
Regain RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
CFM
OV
36000
1238
0.05
400
4.78
446
6.87
492
9.21
573
14.4
40000
1376
0.06
424
5.56
466
7.70
509
10.2
587
15.6
657
21.6
44000
1514
0.07
451
6.50
489
8.76
527
11.2
602
16.9
670
23.1
733
29.9
48000
1651
0.08
479
7.58
513
9.91
549
12.5
619
18.3
685
24.8
745
31.7
802
39.2
52000
1789
0.10
509
8.83
540
11.2
572
13.9
637
19.8
700
26.5
760
33.8
815
41.3
56000
1926
0.11
539
10.2
567
12.8
596
15.5
656
21.5
717
28.5
775
35.9
829
43.8
928
60000
2064
0.13
569
11.8
596
14.5
623
17.3
679
23.6
735
30.5
791
38.2
844
46.3
940
63.6
64000
2202
0.15
601
13.6
625
16.4
650
19.3
703
25.8
754
32.7
808
40.7
859
48.9
955
66.8 1042 86.1
68000
2339
0.17
633
15.6
655
18.5
679
21.5
727
28.1
777
35.4
826
43.2
876
51.9
970
70.2 1055 89.8
72000
2477
0.19
665
17.9
686
20.8
708
24.0
753
30.7
800
38.3
845
46.0
893
54.9
984
73.7 1069 93.9
76000
2614
0.21
697
20.3
717
23.4
738
26.6
780
33.6
824
41.3
868
49.4
912
58.0 1001 77.4
80000
2752
0.23
730
23.0
749
26.2
768
29.6
808
36.7
849
44.5
892
53.0
932
61.6 1018 81.4
84000
2890
0.25
763
25.9
781
29.3
799
32.7
837
40.1
875
43.1
916
56.8
956
65.7 1036 85.4
88000
3027
0.28
796
29.2
813
32.7
830
36.2
866
43.9
903
52.0
940
60.7
979
70.1 1054 89.6
92000
3165
0.30
829
32.7
846
36.3
862
40.0
896
47.8
931
56.2
965
65.0 1003 74.6 1075 94.4
96000
3302
0.33
863
36.5
878
40.2
894
44.1
926
52.1
959
60.6
993
69.7 1027 79.3
60.8
Performance certified is for model VAB installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
®
18
Direct Drive Selection
A. Use the Quick Selection Chart on page 21 to find the most efficient fan, hub and speed combinations. An
example of the Quick Selection Chart is shown below.
B. Use the Outlet Conditions Correction Chart to determine the total pressure required. An example is shown
on page 20. Outlet Conditions Correction Charts are the first chart within each group of performance charts.
C. Use the Performance Charts (pages 22-95) to determine blade pitch, total efficiency and horsepower.
Example: 41,000 cfm, 1.6 in. wg
Full-Bladed Fans
1. Enter the bottom scale with cfm 41,000 cfm A
Model numbers with “F” identify full-bladed fans.
Full-bladed fans have all rotor blades installed and
are designed for moderate to high pressure systems.
2. Enter the left scale with static pressure
B
1.6 in. wg
Example: VAD-36F14
3. Select the most efficient fan where CFM and
static pressure intersect (Fan size 54F26C).
Smaller, higher speed fans above this intersection
should also be considered.
Half-Bladed Fans
Model numbers with “H” identify half-bladed fans.
Half-bladed fans have half the standard number of
blades for better efficiencies at low pressures.
4. Go to the direct drive performance charts for the
blade pitch and horsepower required.
Example: VAD-36H14
20
1M
30F2
7M
24F1
10
8
6A
4M
18F1
6
5
4
4A
20F1
2
4A
18F1
RPM
1770
4A
18H1
1.0
0.8
4B
20F1
0.6
0.5
0.4
4B
18F1
RPM
1170
7C
24F1
54F3
0A
48F3
6A
6A
48F2
1A
54F2
1A
48F2
0B
72F3
B
0
3
F
6B
66
72F2
0B
7A
60F3
A
B
4
24F1
6
1
2
F
F
B
6
36
66
54F2
6B
4A
60F2
30F1
6B
B
48F2
1
2
F
54
6C
4A
72F2
6B
1B
24F1
42F2
48F2
C
1B
7B
6F26
36F2
42F1
6C 6
C
B
60F2
4F26
5
B
B
4
1
1
36F
6C
30F2
6D
1C
48F2
72F2
54F2
6D
C
4B
2
6
1
F
2
C
B
F
6
F
1
7
0
6
3
42
48F2
24F1
6D
60F2
F21C
17C
4B
6
F
1
3
2
F
4
4
2
1D
54F2
4C
7C
36F1
30F1
MOTOR
7D
4C
42F1
30F1
RPM
1A
1A
30F2
PM
870 R
0.3
42F2
6A
36F2
RPM
3500
4M
18H1
3
Static Pressure (in. wg)
0A
4M
20F1
36F2
42F2
PM
690 R
A
CODE
M-3500
A-1770
B-1170
C-870
D-690
0.2
0.1
1
2
3
4
5 6
8 10
20
30
40 50 60
80 100
200
CFM x 1,000
EXAMPLE
QUICK
SELECTION
CHART
- DIRECT
VANE FANS
AXIAL FANS
QUICK
SELECTION
CHART
- DIRECT
DRIVE DRIVE
VANE AXIAL
19
®
Direct Drive Selection
An outlet condition correction chart is
shown for each group of fan and hub
combinations. Since outlet conditions
greatly affect fan performance, a
correction must be added to system
static pressure to obtain total pressure
before entering the performance charts.
10
Pressure Correction: Pc (in. wg)
Example: VAD-54F26, 41,000 cfm,
1.6 in. wg
1.
2
6
4
Determine the fan outlet condition:
A, B, C or D as shown on the graph,
use B in example (ducted outlet).
Pt = Ps + Pc
Pc =
( CFM
K )
2
1
0.6
0.4
B
0.2
D
0.1
A
A
B
C
D
C
0.06
0.04
0.02
15
20
30
40
50
60
Ducted w/cone
K = 92,180
Ducted Outlet
K = 66,080
Free w/cone
K = 79,280
Free Discharge
70
80
90
K = 50,740
100
150
CFM x 1,000
2.
Enter the bottom scale with
41,000 cfm.
3.
Go vertically up until intersecting with the diagonal
line “B” representing the ducted outlet condition
determined in step 1.
4.
Read the outlet condition correction on the left
scale (0.4 in. wg). Add this correction to the system
static pressure before entering the appropriate
performance chart with total pressure.
1.6 in. wg (Ps) + 0.4 in. wg (Pc) = 2.0 in. wg (Pt)
OUTLET CONDITIONS
A
Ducted with Cone
C
Free with Cone
B
Ducted Outlet
D
Free Discharge
How to Determine Blade Pitch Setting
How to Determine Brake Horsepower
1.
Enter the bottom scale with CFM (41,000) and go
vertically up.
1.
2.
Enter left scale with total pressure (2.0 in. wg) and
go horizontally right.
3.
Where CFM and total pressure intersect is the
operating point. Select the blade pitch angle (15°)
from this point (Point A). Solid lines represent fan
total pressure vs. CFM. Bold lines are labeled for
various pitch settings.
Starting at the operating point found in step 3,
follow the CFM line up or down until intersecting
the dashed line corresponding to the blade pitch
found in step 3 (Point B). Dashed lines represent
horsepower vs. CFM and are labeled for various
pitch settings.
2.
From this point go horizontally right and read
brake horsepower (17.2 Bhp) on the horsepower
scale. Use this brake horsepower to select motor
horsepower.
VAD-54F26 870 RPM
3.50
3.00
40
Point A
30
25°
20°
2.00
75%
20
15°
10°
1.50
70%
5°
60%
1.00
10
30°
Point B65%
0°
25°
0
20°
15°
0.50
10°
5°
0.00
0
0°
5
10
15
20
25
30
35
40
45
50
55
60
CFM x 1,000
PERFORMANCE CHART
®
20
65
70
75
80
85
90
Horsepower
2.50
Total Pressure (in. wg)
30°
21
®
Static Pressure (in. wg)
0.1
0.2
0.3
0.6
0.5
0.4
1.0
0.8
2
3
6
5
4
10
8
20
1
4B
18F1
4A
18H1
4A
18F1
®
4A
2
1A
36F2
1A
42F2
1A
48F2
6A
48F2
0A
48F3
6A
54F2
0B
72F3
4
5 6
7A
24F1
20
CFM x 1,000
8 10
PM
690 R
30
40 50 60
80 100
0
60F3
M-3500
A-1770
B-1170
C-870
D-690
CODE
200
F30B
6B
B 66
72F2
A
B
4
6
1
6B
36F
66F2
54F2
4A
26B
F
0
B
6
30F1
6
48F2
1B
54F2
6C
A
B
4
72F2
6
1B
24F1
42F2
48F2
1B
7B
6F26C
36F2
42F1
6C 6
2
C
F
6
0
2
6
54F
4B
1B
36F1
6C
30F2
6D
2
F
C
8
1
4
72F2
54F2
D
B
6
4
6C
1C
7B
66F2
30F1
42F2
48F2
24F1
D
6
1C
60F2
7C
4B
36F2
42F1
24F1
D
1
54F2
4C
7C
36F1
30F1
MOTOR
7D
4C
42F1
30F1
RPM
1A
30F2
6A
36F2
42
F26A
0A
54F3
QUICK SELECTION CHART - DIRECT DRIVE VANE AXIAL FANS
3
PM
870 R
24F1
7C
RPM
1170
4B
20F1
RPM
1770
20F1
4M
18H1
RPM
3500
4M
18F1
20
F14M
7M
24F1
1M
30F2
VAD-18H14
Max. Motor Frame Size = 256T
Fan Outlet Area = 1.84 ft.2
Min. Motor Frame Size = 182T
Tip Speed = 4.79 x RPM
Cone Outlet Area = 2.89 ft.
2
Outlet Condition Corrections
Pressure Correction, Pc
10
6
4
2
Pt = Ps + Pc
Pc =
( CFM
(
K
2
1
0.6
0.4
0.2
D
A Ducted with cone K = 10,630
0.1
B
C
0.06
0.04
B Ducted outlet
A
K = 7,380
K = 6,100
K = 3,100
C Free with cone
D Free discharge
0.02
1
2
3
4
5
6
7
8
9
10
CFM x 1,000
VAD-18H14
1170 RPM
0.80
0.50
0.70
58%
0.40
45°
40°
0.50
55%
0.30
35°
50%
30°
0.40
0.20
25°
45%
20°
0.30
40%
15°
0.10
Horsepower
Total Pressure (in. wg)
0.60
35%
30%
0.20
0.10
0.00
0
35°
15°
4
8
12
20°
16
25°
20
0.00
40°
45°
30°
24
28
32
36
40
CFM x 100
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
®
22
VAD-18H14
1770 RPM
1.40
1.60
45°
1.40
1.20
58%
40°
1.20
1.00
55%
1.00
45%
25°
0.80
0.80
50%
30°
40%
20°
0.60
0.60
0.40
35%
15°
Horsepower
Total Pressure (in. wg)
35°
30%
0.40
0.20
45°
40°
0.20
0.00
0
35°
30°
5
10
15
25°
20°
15°
20
0.00
25
30
35
40
45
50
55
CFM x 100
VAD-18H14
3500 RPM
12.0
7.00
6.00
45°
58%
40°
5.00
8.0
55%
35°
4.00
30°
25°
3.00
6.0
50%
45%
20°
40%
15°
35%
2.00
2.0
30%
40°
1.00
0.00
0
4.0
15°
1
Horsepower
Total Pressure (in. wg)
10.0
2
3
4
20°
5
6
0.0
35°
30°
25°
45°
7
8
9
10
CFM x 1,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
23
®
VAD-18F14
Max. Motor Frame Size = 256T
Fan Outlet Area = 1.84 ft.2
Min. Motor Frame Size = 182T
Tip Speed = 4.79 x RPM
Cone Outlet Area = 2.89 ft.
2
Outlet Condition Corrections
Pressure Correction, Pc
10
6
4
2
Pt = Ps + Pc
Pc =
( CFM
(
K
2
1
0.6
0.4
0.2
D
A Ducted with cone K = 10,630
0.1
B
C
0.06
0.04
B Ducted outlet
A
K = 7,380
K = 6,100
K = 3,100
C Free with cone
D Free discharge
0.02
1
2
3
4
6
5
7
8
9
10
CFM x 1,000
VAD-18F14
1170 RPM
1.00
0.90
65%
Total Pressure (in. wg)
0.70
0.50
45°
60%
40°
0.60
35°
0.50
0.40
55%
0.30
30°
50%
25°
0.40
0.30
0.60
66%
0.20
45%
20°
40%
15°
0.10
0.20
0.00
45°
0.10
0.00
0
15°
4
Horsepower
0.80
8
12
20°
16
25°
20
40°
35°
30°
24
28
32
36
40
CFM x 100
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
®
24
VAD-18F14
1770 RPM
2.80
2.00
2.40
45°
1.60
66%
40°
65%
1.60
1.20
35°
30°
1.20
60%
25°
20°
50%
15°
0.80
0.80
55%
45%
0.40
40%
0.40
0.00
0
5
10
15
25°
20°
15°
20
25
30
35
40
0.00
45°
40°
35°
30°
Horsepower
Total Pressure (in. wg)
2.00
45
50
55
60
CFM x 100
VAD-18F14
3500 RPM
9.00
14.0
8.00
45°
12.0
66%
65%
40°
6.00
10.0
35°
5.00
60%
8.0
30°
55%
25°
4.00
20°
3.00
6.0
50%
45%
4.0
40%
15°
Horsepower
Total Pressure (in. wg)
7.00
2.0
2.00
45°
1.00
0.00
0
1
2
3
15°
25°
20°
4
5
6
30°
7
40°
35°
8
9
0.0
10
11
CFM x 1,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
25
®
VAD-20H14
Max. Motor Frame Size = 256T
Fan Outlet Area = 2.26 ft.2
Min. Motor Frame Size = 182T
Tip Speed = 5.32 x RPM
Cone Outlet Area = 3.41 ft.
2
Outlet Condition Corrections
Pressure Correction, Pc
10
6
4
2
Pt = Ps + Pc
Pc =
( CFM
(
K
2
1
0.6
0.4
0.2
A
B
0.1
A Ducted with cone K = 12,690
D
B Ducted outlet
C
0.06
0.04
C Free with cone
D Free discharge
0.02
1
2
3
4
5
6
7
8
K = 9,070
K = 8,760
K = 4,790
9 10
20
CFM x 1,000
VAD-20H14
1170 RPM
0.80
0.70
0.60
40°
0.60
0.50
0.50
70%
0.40
25°
0.20
55%
15°
0.20
0.30
65%
60%
20°
0.30
0.40
30°
50%
10°
40°
45%
35°
Horsepower
Total Pressure (in. wg)
35°
71°
0.10
30°
25°
0.10
15°
0.00
0
0.00
20°
10°
5
10
15
20
25
30
35
40
45
50
CFM x 100
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
®
26
VAD-20H14
1770 RPM
1.60
1.40
2.00
40°
71°
1.60
35°
70%
30°
1.00
25°
0.80
1.20
65%
20°
15°
0.60
0.80
60%
55%
10°
0.40
50%
40°
45%
0.40
Horsepower
Total Pressure (in. wg)
1.20
35°
0.00
30°
25°
0.20
0.00
0
20°
15°
10°
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
CFM x 100
VAD-20H14
3500 RPM
7.0
16.0
6.0
40°
12.0
35°
71°
30°
70%
4.0
8.0
25°
20°
3.0
10°
65%
15°
4.0
60%
Horsepower
Total Pressure (in. wg)
5.0
55%
50%
2.0
0.0
40°
45%
35°
30°
1.0
25°
20°
15°
0.0
0
10°
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
CFM x 1,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
27
®
VAD-20F14
Max. Motor Frame Size = 256T
Fan Outlet Area = 2.26 ft.2
Min. Motor Frame Size = 182T
Tip Speed = 5.32 x RPM
Cone Outlet Area = 3.41 ft.
2
Outlet Condition Corrections
Pressure Correction, Pc
10
6
4
2
Pt = Ps + Pc
Pc =
( CFM
(
K
2
1
0.6
0.4
0.2
A
B
0.1
A Ducted with cone K = 12,690
D
B Ducted outlet
C
0.06
0.04
K = 9,070
K = 8,760
K = 4,790
C Free with cone
D Free discharge
0.02
1
2
3
4
6
5
7
8
9 10
20
CFM x 1,000
VAD-20F14
1170 RPM
1.40
0.80
1.20
40°
0.60
35°
30°
25°
0.80
0.40
71%
70%
20°
15°
0.60
10°
0.20
65%
60%
55%
50%
45%
0.40
Horsepower
Total Pressure (in. wg)
1.00
0.00
40°
35°
0.20
0.00
0
10°
5
10
15
20°
15°
20
25
30°
25°
30
35
40
45
50
55
60
CFM x 100
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
®
28
VAD-20F14
1770 RPM
2.80
2.80
40°
2.40
2.40
35°
Total Pressure (in. wg)
30°
71%
70%
1.60
1.60
25°
65%
1.20
20°
1.20
60%
55%
15°
50%
0.80
0.80
45%
10°
40°
35°
0.40
15°
10°
5
10
15
20
0.40
30°
25°
20°
0.00
0
Horsepower
2.00
2.00
25
30
35
40
45
50
55
60
65
70
75
80
0.00
85
CFM x 100
VAD-20F14
3500 RPM
22.0
11.00
10.00
20.0
40°
18.0
9.00
35°
7.00
30°
6.00
16.0
14.0
71%
70%
12.0
25°
65%
5.00
20°
10.0
60%
4.00
8.0
55%
50%
15°
3.00
Horsepower
Total Pressure (in. wg)
8.00
6.0
45%
10°
40°
2.00
4.0
35°
30°
1.00
0.00
0
2.0
25°
10°
2
4
15°
6
20°
8
10
12
14
16
0.0
20
18
CFM x 1,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
29
®
VAD-24H14
Max. Motor Frame Size = 256T
Fan Outlet Area = 3.24 ft.2
Min. Motor Frame Size = 182T
Tip Speed = 6.36 x RPM
Cone Outlet Area = 5.03 ft.
2
Outlet Condition Corrections
Pressure Correction, Pc
6
4
2
2
Pt = Ps + Pc
Pc =
( CFM
(
K
1
0.6
0.4
0.2
B
0.1
0.06
A Ducted with cone K = 18,580
A
D
B Ducted outlet
C
0.04
0.02
2
K = 12,980
K = 14,720
K = 8,700
C Free with cone
D Free discharge
3
4
6
5
7
8
9
10
20
CFM x 1,000
VAD-24H14
870 RPM
0.55
0.50
0.45
0.70
0.60
40°
75%
0.35
0.50
35°
0.30
0.40
30°
70%
25°
0.25
20°
0.20
0.10
25°
0.10
0.00
20°
15°
0.05
0.00
0
0.20
30°
55%
10°
0.15
35°
60%
15°
0.30
40°
65%
Horsepower
Total Pressure (in. wg)
0.40
10°
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
CFM x 100
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
®
30
VAD-24H14
1170 RPM
1.00
0.90
0.80
1.20
35°
1.00
30°
75%
0.60
0.80
25°
0.50
40°
65%
15°
0.40
0.40
35°
60%
10°
0.30
0.60
70%
20°
30°
55%
Horsepower
0.70
Total Pressure (in. wg)
1.40
40°
0.20
25°
0.20
0.00
20°
15°
0.10
10°
0.00
0
1
2
3
4
5
6
7
8
9
10
CFM x 1,000
VAD-24H14
1770 RPM
2.80
2.40
5.0
40°
4.0
35°
30°
3.0
1.60
75%
25°
1.20
20°
40°
65%
15°
0.80
2.0
70%
35°
60%
10°
1.0
30°
55%
Horsepower
Total Pressure (in. wg)
2.00
25°
0.0
20°
0.40
15°
10°
0.00
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
CFM x 1,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
31
®
VAD-24F14
Max. Motor Frame Size = 256T
Fan Outlet Area = 3.24 ft.2
Min. Motor Frame Size = 182T
Tip Speed = 6.36 x RPM
Cone Outlet Area = 5.03 ft.
2
Outlet Condition Corrections
Pressure Correction, Pc
6
4
2
2
Pt = Ps + Pc
Pc =
( CFM
(
K
1
0.6
0.4
0.2
B
0.1
0.06
A Ducted with cone K = 18,580
A
D
B Ducted outlet
C
0.04
0.02
2
K = 12,980
K = 14,720
K = 8,700
C Free with cone
D Free discharge
3
4
6
5
7
8
9
10
20
CFM x 1,000
VAD-24F14
870 RPM
0.90
0.90
0.80
0.70
35°
0.60
0.60
30°
0.50
0.50
77%
25°
75%
0.40
20°
0.40
70%
40°
65%
0.30
15°
0.20
60%
Horsepower
0.70
Total Pressure (in. wg)
0.80
40°
0.30
35°
0.20
30°
10°
25°
0.10
0.10
20°
15°
0.00
0
10°
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
0.00
85
CFM x 100
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
®
32
VAD-24F14
1170 RPM
1.60
1.40
2.40
2.00
40°
35°
1.00
30°
0.80
1.60
77%
25°
20°
0.60
1.20
75%
70%
60%
35°
10°
0.40
0.80
40°
65%
15°
0.40
30°
25°
0.20
0.00
0.00
20°
15°
10°
0
1
2
Horsepower
Total Pressure (in. wg)
1.20
3
4
5
6
7
8
9
10
11
CFM x 1,000
VAD-24F14
1770 RPM
3.50
8.0
3.00
40°
6.0
35°
30°
77%
25°
2.00
75%
20°
15°
1.50
4.0
2.0
70%
10°
40°
65%
60%
1.00
35°
Horsepower
Total Pressure (in. wg)
2.50
0.0
30°
25°
0.50
20°
15°
0.00
10°
0
2
4
6
8
10
12
14
16
18
20
CFM x 1,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
33
®
VAD-24F17
Fan Outlet Area = 3.24 ft.2
Cone Outlet Area = 5.03 ft.
2
Max. Motor Frame Size = 286T (TEAO)
Min. Motor Frame Size = 182T
Max. Motor Frame Size = 326T (ODP)
Tip Speed = 6.36 x RPM
Outlet Condition Corrections
20
Pressure Correction, Pc
10
6
4
2
Pt = Ps + Pc
Pc =
( CFM
(
K
2
1
0.6
0.4
D
B
0.2
A
C
A Ducted with cone K = 18,580
0.1
B Ducted outlet
C Free with cone
0.06
0.04
D Free discharge
0.02
3
4
6
5
7
8
9
10
K = 12,980
K = 11,930
K = 6,290
20
30
CFM x 1,000
VAD-24F17
1170 RPM
2.00
2.00
40°
1.80
1.60
1.60
35°
1.40
1.40
73%
30°
1.20
1.20
70%
25°
1.00
1.00
65%
60%
20°
0.80
0.80
55%
50%
15°
0.60
0.60
45%
10°
0.40
35°
0.20
0.00
0
0.40
40°
0.20
30°
1
2
10°
3
25°
20°
15°
4
Horsepower
Total Pressure (in. wg)
1.80
5
6
7
8
9
0.00
10
CFM x 1,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
®
34
VAD-24F17
1770 RPM
4.50
4.00
7.0
40°
3.50
6.0
73%
3.00
5.0
30°
2.50
70%
4.0
25°
2.00
65%
20°
55%
15°
1.50
3.0
60%
2.0
50%
10°
Horsepower
Total Pressure (in. wg)
35°
45%
1.00
1.0
40°
0.50
0.00
0
35°
30°
1
2
3
20°
15°
10°
4
5
0.0
25°
6
7
8
9
10
11
12
13
14
CFM x 1,000
VAD-24F17
3500 RPM
18.0
16.0
60
50
40°
35°
12.0
73%
30°
10.0
40
70%
30
25°
65%
20°
8.00
55%
10°
6.00
20
60%
15°
Horsepower
Total Pressure (in. wg)
14.0
10
50%
45%
0
4.00
40°
2.00
0.00
0
35°
30°
2
4
6
10°
8
15°
10
25°
20°
12
14
16
18
20
22
24
26
28
CFM x 1,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
35
®
VAD-30H14
Max. Motor Frame Size = 256T
Fan Outlet Area = 5.03 ft.2
Min. Motor Frame Size = 182T
Tip Speed = 7.92 x RPM
Cone Outlet Area = 7.22 ft.
2
Outlet Condition Corrections
Pressure Correction, Pc
6
4
2
Pt = Ps + Pc
2
Pc =
( CFM
(
K
1
0.6
0.4
0.2
0.1
B
0.06
B Ducted outlet
D
C
3
K = 20,150
K = 23,890
K = 15,870
C Free with cone
0.04
0.02
A Ducted with cone K = 27,170
A
4
D Free discharge
6
5
7
8
9
10
20
30
CFM x 1,000
VAD-30H14
870 RPM
0.80
2.00
0.70
0.60
1.60
35°
1.20
25°
0.40
20°
15°
0.30
30°
10°
5°
0.80
35°
75%
0.40
25°
70%
20°
65%
0.20
0.00
15°
60%
0.10
Horsepower
Total Pressure (in. wg)
30°
0.50
10°
5°
0.00
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
CFM x 1,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
®
36
VAD-30H14
1170 RPM
1.40
1.20
4.0
35°
30°
3.0
25°
0.80
2.0
20°
35°
15°
0.60
75%
10°
30°
5°
1.0
25°
70%
0.40
15°
60%
0.20
0.0
20°
65%
Horsepower
Total Pressure (in. wg)
1.00
10°
5°
0.00
0
2
4
6
8
10
12
14
16
18
20
CFM x 1,000
VAD-30H14
1770 RPM
3.50
14.0
35°
12.0
3.00
30°
10.0
25°
8.0
2.00
20°
35°
75%
1.50
15°
25°
70%
1.00
10°
4.0
20°
65%
60%
5°
0.50
6.0
30°
Horsepower
Total Pressure (in. wg)
2.50
15°
2.0
10°
5°
0.00
0
2
4
6
8
10
12
14
16
18
20
22
24
26
28
0.0
30
CFM x 1,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
37
®
VAD-30F14
Max. Motor Frame Size = 256T
Fan Outlet Area = 5.03 ft.2
Min. Motor Frame Size = 182T
Tip Speed = 7.92 x RPM
Cone Outlet Area = 7.22 ft.
2
Outlet Condition Corrections
Pressure Correction, Pc
6
4
2
Pt = Ps + Pc
2
Pc =
( CFM
(
K
1
0.6
0.4
0.2
0.1
B
0.06
B Ducted outlet
D
K = 20,150
K = 23,890
K = 15,870
C Free with cone
0.04
0.02
A Ducted with cone K = 27,170
A
C
3
4
D Free discharge
6
5
7
8
9
10
20
30
CFM x 1,000
VAD-30F14
870 RPM
1.10
1.00
0.90
2.80
2.40
0.80
2.00
0.70
30°
0.60
76%
0.50
20°
65%
10°
0.80
30°
5°
0.30
1.20
35°
70%
15°
0.40
1.60
75%
25°
0.40
25°
20°
0.20
Horsepower
Total Pressure (in. wg)
35°
0.00
15°
0.10
10°
5°
0.00
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
CFM x 1,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
®
38
VAD-30F14
1170 RPM
2.00
1.80
6.0
1.60
35°
5.0
30°
1.20
1.00
4.0
76%
25°
75%
3.0
20°
15°
0.80
70%
10°
35°
65%
30°
5°
0.60
2.0
1.0
25°
0.40
Horsepower
Total Pressure (in. wg)
1.40
0.0
20°
15°
0.20
10°
5°
0.00
0
2
4
6
8
10
12
14
16
18
20
22
CFM x 1,000
VAD-30F14
1770 RPM
4.50
4.00
20.0
3.50
3.00
16.0
30°
76%
25°
2.50
15°
2.00
65%
5°
8.0
35°
70%
10°
1.50
12.0
75%
20°
30°
Horsepower
Total Pressure (in. wg)
35°
4.0
25°
1.00
0.0
20°
15°
0.50
10°
5°
0.00
0
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
CFM x 1,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
39
®
VAD-30F17
Fan Outlet Area = 5.03 ft.2
Cone Outlet Area = 7.22 ft.
2
Max. Motor Frame Size = 286T (TEAO)
Min. Motor Frame Size = 182T
Max. Motor Frame Size = 326T (ODP)
Tip Speed = 7.92 x RPM
Outlet Condition Corrections
Pressure Correction, Pc
6
4
2
Pt = Ps + Pc
2
Pc =
( CFM
(
K
1
0.6
0.4
0.2
0.1
B
0.06
B Ducted outlet
3
4
K = 20,150
K = 22,030
K = 13,460
C Free with cone
C
0.04
0.02
A Ducted with cone K = 27,170
A
D
D Free discharge
6
5
7
8
9
10
20
30
CFM x 1,000
VAD-30F17
870 RPM
1.40
2.40
35°
2.00
1.20
30°
1.60
25°
20°
0.80
1.20
74%
15°
0.60
0.80
70%
10°
65%
5°
0.40
60%
35°
Horsepower
Total Pressure (in. wg)
1.00
0.40
30°
25°
0.20
0.00
20°
15°
0.00
0
10°
5°
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
CFM x 1,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
®
40
VAD-30F17
1170 RPM
2.80
6.0
35°
5.0
2.40
30°
4.0
25°
20°
1.60
3.0
74%
15°
2.0
1.20
70%
10°
65%
60%
5°
0.80
Horsepower
Total Pressure (in. wg)
2.00
1.0
35°
30°
25°
0.40
0.0
20°
15°
10°
5°
0.00
0
2
4
6
8
10
12
14
16
18
20
CFM x 1,000
VAD-30F17
1770 RPM
20.0
5.50
35°
5.00
4.50
18.0
16.0
30°
4.00
14.0
12.0
3.50
74%
20°
3.00
2.50
15°
2.00
10.0
8.0
70%
65%
10°
6.0
60%
1.50
35°
5°
4.0
30°
25°
1.00
Horsepower
Total Pressure (in. wg)
25°
2.0
20°
0.50
0.00
0
0.0
15°
10°
5°
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
CFM x 1,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
41
®
VAD-30F21
Max. Motor Frame Size = 365T
Fan Outlet Area = 5.03 ft.2
Min. Motor Frame Size = 182T
Tip Speed = 7.92 x RPM
Cone Outlet Area = 7.22 ft.
2
Outlet Condition Corrections
20
Pressure Correction, Pc
10
6
4
2
Pt = Ps + Pc
Pc =
( CFM
(
K
2
1
0.6
0.4
D
B
0.2
A
C
A Ducted with cone K = 27,170
0.1
B Ducted outlet
C Free with cone
0.06
0.04
0.02
5
D Free discharge
6
7
8
9
10
20
K = 20,150
K = 19,020
K = 10,520
30
40
50
CFM x 1,000
VAD-30F21
1170 RPM
2.80
7.0
6.0
2.40
40°
5.0
35°
74%
30°
1.60
4.0
70%
25°
65%
1.20
3.0
60%
20°
Horsepower
Total Pressure (in. wg)
2.00
55%
0.80
2.0
50%
45%
15°
40°
35°
10°
0.40
0.00
0
1.0
30°
2
4
10°
20°
15°
6
25°
8
10
12
14
16
18
0.0
20
CFM x 1,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
®
42
VAD-30F21
1770 RPM
7.00
24.0
6.00
35°
5.00
16.0
30°
4.00
74%
25°
70%
20°
3.00
12.0
60%
10°
2.00
8.0
65%
15°
55%
50%
45%
4.0
40°
35°
1.00
0.00
0
0.0
30°
2
4
6
Horsepower
Total Pressure (in. wg)
20.0
40°
10°
8
15°
10
25°
20°
12
14
16
18
20
22
24
26
28
30
CFM x 1,000
VAD-30F21
3500 RPM
28.0
200
24.0
160
40°
35°
16.0
120
74%
30°
70%
25°
12.0
60%
15°
8.0
80
65%
20°
55%
50%
45%
10°
40
40°
35°
4.0
0.0
0
30°
0
5
10
Horsepower
Total Pressure (in. wg)
20.0
10°
15
20
25°
20°
15°
25
30
35
40
45
50
55
60
CFM x 1,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
43
®
VAD-36H14
Max. Motor Frame Size = 256T
Fan Outlet Area = 7.22 ft.2
Min. Motor Frame Size = 182T
Tip Speed = 9.49 x RPM
Cone Outlet Area = 10.56 ft.
2
Outlet Condition Corrections
6
Pressure Correction, Pc
4
2
2
Pt = Ps + Pc
Pc =
( CFM
(
K
1
0.6
0.4
0.2
B
A
0.1
0.06
D
K = 28,900
K = 35,870
K = 24,620
C Free with cone
C
0.04
0.02
5
A Ducted with cone K = 39,560
B Ducted outlet
D Free discharge
6
7
8
9
10
20
30
40
50
CFM x 1,000
VAD-36H14
870 RPM
0.90
3.20
30°
0.80
2.40
25°
0.60
2.00
20°
81%
0.50
1.60
30°
80%
15°
25°
0.40
1.20
75%
10°
0.30
65%
5°
0.20
20°
70%
0°
0.80
15°
0.40
10°
5°
0.10
Horsepower
Total Pressure (in. wg)
0.70
2.80
0.00
0°
0.00
0
2
4
6
8
10
12
14
16
18
20
22
24
CFM x 1,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
®
44
VAD-36H14
1170 RPM
8.0
1.60
1.40
7.0
30°
6.0
1.20
5.0
1.00
81%
20°
0.80
30°
4.0
80%
15°
0.60
25°
70%
10°
0.40
15°
65%
2.0
10°
5°
0.20
3.0
20°
75%
Horsepower
Total Pressure (in. wg)
25°
1.0
5°
0°
0°
0.00
0
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
0.0
32
CFM x 1,000
VAD-36H14
1770 RPM
28.0
4.00
20.0
25°
16.0
2.50
20°
81%
2.00
30°
15°
80%
1.50
10°
25°
70%
65%
0°
8.0
20°
75%
5°
1.00
12.0
15°
Horsepower
3.00
Total Pressure (in. wg)
24.0
30°
3.50
4.0
10°
0.50
0.0
5°
0°
0.00
0
5
10
15
20
25
30
35
40
45
50
CFM x 1,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
45
®
VAD-36F14
Max. Motor Frame Size = 256T
Fan Outlet Area = 7.22 ft.2
Min. Motor Frame Size = 182T
Tip Speed = 9.49 x RPM
Cone Outlet Area = 10.56 ft.
2
Outlet Condition Corrections
6
Pressure Correction, Pc
4
2
2
Pt = Ps + Pc
Pc =
( CFM
(
K
1
0.6
0.4
0.2
B
A
0.1
0.06
A Ducted with cone K = 39,560
B Ducted outlet
D
C Free with cone
C
0.04
D Free discharge
0.02
5
6
7
9
8
10
20
K = 28,900
K = 35,870
K = 24,620
30
40
50
CFM x 1,000
VAD-36F14
870 RPM
1.40
5.0
1.20
30°
4.0
25°
0.80
20°
0.60
3.0
80%
15°
70%
10°
0.40
2.0
30°
75%
25°
65%
5°
Horsepower
Total Pressure (in. wg)
1.00
1.0
20°
0°
15°
0.20
0.0
10°
5°
0.00
0
0°
2
4
6
8
10
12
14
16
18
20
22
24
26
CFM x 1,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
®
46
VAD-36F14
1170 RPM
2.80
12.0
30°
2.40
25°
8.0
20°
6.0
1.60
15°
1.20
80%
4.0
10°
65%
0°
2.0
20°
15°
0.40
0.00
0
25°
70%
5°
0.80
30°
75%
Horsepower
2.00
Total Pressure (in. wg)
10.0
0.0
10°
5°
0°
4
8
12
16
20
24
28
32
36
40
CFM x 1,000
VAD-36F14
1770 RPM
7.00
6.00
40
30°
30
25°
20°
4.00
20
15°
10°
3.00
80%
10
5°
0°
30°
75%
70%
2.00
Horsepower
Total Pressure (in. wg)
5.00
0
25°
65%
20°
15°
1.00
10°
5°
0.00
0
0°
5
10
15
20
25
30
35
40
45
50
55
CFM x 1,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
47
®
VAD-36F17
Fan Outlet Area = 7.22 ft.2
Cone Outlet Area = 10.56 ft.
2
Max. Motor Frame Size = 286T (TEAO)
Min. Motor Frame Size = 182T
Max. Motor Frame Size = 326T (ODP)
Tip Speed = 9.49 x RPM
Outlet Condition Corrections
6
Pressure Correction, Pc
4
2
2
Pt = Ps + Pc
Pc =
( CFM
(
K
1
0.6
0.4
0.2
B
0.1
A Ducted with cone K = 39,560
B Ducted outlet
D
0.06
C
0.04
0.02
5
A
C Free with cone
D Free discharge
6
7
8
9
10
20
K = 28,900
K = 34,250
K = 22,220
30
40
50
CFM x 1,000
VAD-36F17
870 RPM
1.60
1.40
6.0
35°
5.0
30°
1.00
4.0
25°
79%
0.80
3.0
20°
75%
15°
0.60
70%
10°
0.40
35°
2.0
30°
Horsepower
Total Pressure (in. wg)
1.20
65%
25°
5°
1.0
20°
0.20
0.0
15°
10°
0.00
0
5°
2
4
6
8
10
12
14
16
18
20
22
24
26
28
CFM x 1,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
®
48
VAD-36F17
1170 RPM
14.0
3.50
35°
12.0
3.00
30°
Total Pressure (in. wg)
25°
8.0
2.00
20°
79%
1.50
15°
1.00
6.0
70%
10°
65%
5°
0.50
35°
75%
30°
Horsepower
10.0
2.50
4.0
25°
20°
2.0
15°
10°
5°
0.00
0
4
8
12
16
20
24
28
32
0.0
40
36
CFM x 1,000
VAD-36F17
1770 RPM
7.00
6.00
50
35°
5.00
Total Pressure (in. wg)
4.00
25°
30
79%
20°
3.00
70%
10°
2.00
65%
5°
20
35°
75%
15°
Horsepower
40
30°
30°
10
25°
20°
1.00
0
15°
10°
0.00
0
5°
5
10
15
20
25
30
35
40
45
50
55
60
CFM x 1,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
49
®
VAD-36F21
Max. Motor Frame Size = 365T
Fan Outlet Area = 7.22 ft.2
Min. Motor Frame Size = 182T
Tip Speed = 9.49 x RPM
Cone Outlet Area = 10.56 ft.
2
Outlet Condition Corrections
10
Pressure Correction, Pc
6
4
Pt = Ps + Pc
Pc =
(
CFM
K
2
(
2
1
0.6
0.4
0.2
0.1
B
D
A
A Ducted with cone K = 39,560
B Ducted outlet
0.06
C
C Free with cone
0.04
0.02
5
D Free discharge
6
7
8
9
10
20
K = 28,900
K = 31,850
K = 19,270
30
40
50
CFM x 1,000
VAD-36F21
870 RPM
2.00
1.80
1.60
6.0
35°
5.0
30°
1.20
4.0
25°
1.00
78%
3.0
20°
75%
15°
0.80
65%
5°
0.60
2.0
70%
10°
0.40
1.0
35°
60%
55%
30°
0.0
25°
20°
0.20
0.00
0
Horsepower
Total Pressure (in. wg)
1.40
10°
5°
2
4
6
8
10
15°
12
14
16
18
20
22
24
26
CFM x 1,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
®
50
VAD-36F21
1170 RPM
14.0
3.50
35°
12.0
3.00
30°
Total Pressure (in. wg)
25°
2.00
8.0
78%
20°
75%
1.50
15°
6.0
70%
65%
1.00
10°
35°
60%
55%
0.00
0
4.0
30°
5°
25°
0.50
2.0
20°
15°
10°
5°
4
8
Horsepower
10.0
2.50
12
16
20
24
28
32
0.0
40
36
CFM x 1,000
VAD-36F21
1770 RPM
8.00
7.00
50
35°
40
30°
5.00
25°
78%
20°
4.00
30
20
15°
75%
10°
3.00
10
70%
5°
65%
35°
60%
55%
2.00
Horsepower
Total Pressure (in. wg)
6.00
0
30°
25°
1.00
20°
15°
0.00
0
5°
5
10
15
10°
20
25
30
35
40
45
50
55
CFM x 1,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
51
®
VAD-36F26
Max. Motor Frame Size = 445T
Fan Outlet Area = 7.22 ft.2
Min. Motor Frame Size = 254T
Tip Speed = 9.49 x RPM
Cone Outlet Area = 10.56 ft.
2
Outlet Condition Corrections
10
Pressure Correction, Pc
6
4
Pt = Ps + Pc
Pc =
(
CFM
K
2
(
2
1
0.6
0.4
0.2
D
B
0.1
A
C
A Ducted with cone K = 39,560
B Ducted outlet
0.06
C Free with cone
0.04
D Free discharge
0.02
5
6
7
8
9
10
20
K = 28,900
K = 25,530
K = 13,560
30
40
50
CFM x 1,000
VAD-36F26
870 RPM
2.20
2.00
Total Pressure (in. wg)
1.60
40°
6.0
1.40
35° 69%
5.0
4.0
30°
1.20
65%
25°
1.00
3.0
20°
60%
15°
0.80
50%
45%
0.60
1.0
40%
0.40
40°
0.0
35°
0.20
0.00
0
2.0
55%
10°
2
4
6
10°
20°
15°
8
10
25°
12
14
Horsepower
7.0
1.80
30°
16
18
20
22
24
CFM x 1,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
®
52
VAD-36F26
1170 RPM
16.0
4.00
40°
3.50
12.0
35°
2.50
8.0
65%
25°
2.00
10.0
69%
30°
60%
20°
1.50
6.0
55%
15°
1.00
50%
45%
4.0
40%
10°
40°
35°
0.50
0.00
0
2.0
30°
2
4
6
8
10°
10
12
25°
20°
15°
14
Horsepower
Total Pressure (in. wg)
3.00
14.0
16
18
20
22
24
26
28
30
0.0
32
CFM x 1,000
VAD-36F26
1770 RPM
9.00
8.00
60
50
40°
35°
6.00
40
69%
30°
5.00
30
25°
65%
20°
4.00
55%
10°
3.00
20
60%
15°
10
50%
45%
2.00
Horsepower
Total Pressure (in. wg)
7.00
40%
0
40°
35°
1.00
0.00
0
5
10
10°
15
25°
20°
15°
20
30°
25
30
35
40
45
50
CFM x 1,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
53
®
VAD-42H17
Fan Outlet Area = 9.85 ft.2
Cone Outlet Area = 14.75 ft.
2
Max. Motor Frame Size = 286T (TEAO)
Min. Motor Frame Size = 182T
Max. Motor Frame Size = 326T (ODP)
Tip Speed = 11.09 x RPM
Outlet Condition Corrections
6
Pressure Correction, Pc
4
2
Pt = Ps + Pc
2
Pc =
( CFM
(
K
1
0.6
0.4
0.2
B
0.1
A
A Ducted with cone K = 54,960
D
B Ducted outlet
C
0.06
C Free with cone
0.04
0.02
D Free discharge
8
9
10
20
30
40
50
K = 39,460
K = 49,050
K = 32,770
60
70
80
CFM x 1,000
VAD-42H17
870 RPM
1.40
1.20
8.0
30°
6.0
25°
20°
0.80
30°
15°
78%
10°
0.60
0°
4.0
25°
75%
5°
2.0
Horsepower
Total Pressure (in. wg)
1.00
20°
0.40
0.0
15°
10°
0.20
5°
0°
0.00
0
4
8
12
16
20
24
28
32
36
40
CFM x 1,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
®
54
VAD-42H17
1170 RPM
2.80
2.40
20.0
30°
16.0
25°
1.60
12.0
20°
30°
78%
1.20
15°
10°
0.80
8.0
25°
75%
20°
5°
Horsepower
Total Pressure (in. wg)
2.00
4.0
15°
0°
10°
0.40
0.0
5°
0°
0.00
0
5
10
15
20
25
30
35
40
45
50
55
CFM x 1,000
VAD-42H17
1770 RPM
5.00
4.50
70
4.00
50
25°
30°
3.00
2.50
25°
75%
15°
2.00
30
20°
10°
5°
1.50
40
78%
20°
20
10
15°
0°
10°
1.00
Horsepower
Total Pressure (in. wg)
3.50
0
5°
0.50
0.00
0
60
30°
0°
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
CFM x 1,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
55
®
VAD-42F17
Fan Outlet Area = 9.85 ft.2
Cone Outlet Area = 14.75 ft.
2
Max. Motor Frame Size = 286T (TEAO)
Min. Motor Frame Size = 182T
Max. Motor Frame Size = 326T (ODP)
Tip Speed = 11.09 x RPM
Outlet Condition Corrections
6
Pressure Correction, Pc
4
2
Pt = Ps + Pc
2
Pc =
( CFM
(
K
1
0.6
0.4
0.2
B
0.1
A
A Ducted with cone K = 54,960
D
B Ducted outlet
C
0.06
C Free with cone
0.04
0.02
D Free discharge
8
9
10
20
30
40
50
K = 39,460
K = 49,050
K = 32,770
60
70
80
CFM x 1,000
VAD-42F17
870 RPM
2.00
1.80
1.60
12.0
10.0
30°
1.20
81%
25°
20°
1.00
15°
0.80
0.60
10°
70%
6.0
30°
75%
4.0
25°
5°
0°
2.0
20°
0.40
0.0
15°
10°
0.20
0.00
0
8.0
80%
Horsepower
Total Pressure (in. wg)
1.40
5°
0°
5
10
15
20
25
30
35
40
45
50
CFM x 1,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
®
56
VAD-42F17
1170 RPM
28.0
3.50
3.00
2.50
20.0
25°
81%
2.00
80%
20°
1.50
16.0
30°
75%
15°
70%
10°
1.00
20°
5°
0.50
0°
5
8.0
15°
4.0
10°
5°
0°
0.00
0
12.0
25°
Horsepower
Total Pressure (in. wg)
24.0
30°
10
15
20
25
30
35
40
45
50
0.0
60
55
CFM x 1,000
VAD-42F17
1770 RPM
8.00
7.00
100
6.00
30°
80
81%
60
80%
20°
15°
4.00
10°
5°
3.00
40
30°
75%
70%
25°
20
Horsepower
Total Pressure (in. wg)
25°
5.00
0°
20°
0
2.00
15°
10°
1.00
5°
0°
0.00
0
10
20
30
40
50
60
70
80
90
100
CFM x 1,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
57
®
VAD-42F21
Max. Motor Frame Size = 365T
Fan Outlet Area = 9.85 ft.2
Min. Motor Frame Size = 182T
Tip Speed = 11.09 x RPM
Cone Outlet Area = 14.75 ft.
2
Outlet Condition Corrections
10
6
2
Pt = Ps + Pc
Pressure Correction, Pc
4
Pc =
( CFM
(
K
2
1
0.6
0.4
0.2
B
A Ducted with cone K = 54,960
D
0.1
B Ducted outlet
C
0.06
0.04
0.02
A
C Free with cone
D Free discharge
8
9
10
20
30
40
K = 39,460
K = 46,930
K = 29,830
50
60
70
80
CFM x 1,000
VAD-42F21
870 RPM
2.80
12.0
30°
25°
2.00
Total Pressure (in. wg)
10.0
8.0
20°
1.60
6.0
79%
15°
1.20
75%
10°
4.0
70%
5°
0.80
65%
30°
0°
Horsepower
2.40
2.0
25°
20°
0.40
0.0
15°
10°
0.00
0
4
8
0°
5°
12
16
20
24
28
32
36
40
44
CFM x 1,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
®
58
VAD-42F21
1170 RPM
4.00
28.0
30°
3.50
24.0
25°
3.00
20.0
20°
2.50
16.0
75%
15°
2.00
10°
65%
1.50
5°
1.00
12.0
70%
30°
8.0
Horsepower
Total Pressure (in. wg)
79%
25°
4.0
0°
20°
15°
0.50
0.0
10°
5°
0.00
0
5
0°
10
15
20
25
30
35
40
45
50
55
60
CFM x 1,000
VAD-42F21
1770 RPM
10.0
100
9.00
90
30°
8.00
80
25°
70
79%
6.00
60
20°
75%
5.00
15°
50
70%
4.00
65%
10°
3.00
40
30°
30
25°
5°
2.00
0°
0.00
0
20
20°
15°
1.00
10
10°
10
0°
20
5°
30
40
50
Horsepower
Total Pressure (in. wg)
7.00
60
70
80
0
100
90
CFM x 1,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
59
®
VAD-42F26
Max. Motor Frame Size = 445T
Fan Outlet Area = 9.85 ft.2
Min. Motor Frame Size = 254T
Tip Speed = 11.09 x RPM
Cone Outlet Area = 14.75 ft.
2
Outlet Condition Corrections
10
6
Pressure Correction, Pc
(
CFM
Pc =
K
Pt = Ps + Pc
4
2
(
2
1
0.6
0.4
0.2
B
D
A
A Ducted with cone K = 54,960
0.1
C
B Ducted outlet
0.06
0.04
0.02
C Free with cone
D Free discharge
8
9
10
20
30
40
50
K = 39,460
K = 41,770
K = 24,120
60
70
80
CFM x 1,000
VAD-42F26
870 RPM
14.0
2.80
2.00
Total Pressure (in. wg)
12.0
35°
10.0
30°
25°
1.60
8.0
75%
20°
1.20
6.0
70%
15°
0.80
65%
60%
55%
50%
10°
5°
0.40
35°
Horsepower
2.40
4.0
30°
25°
2.0
20°
15°
0.00
0
5°
4
8
12
10°
16
20
24
28
32
36
0.0
40
CFM x 1,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
®
60
VAD-42F26
1170 RPM
4.50
32.0
35°
4.00
30°
3.50
24.0
20.0
25°
3.00
2.50
75%
20°
15°
2.00
16.0
10°
1.50
12.0
70%
65%
1.00
8.0
35°
60%
55%
50%
5°
Horsepower
Total Pressure (in. wg)
28.0
30°
4.0
25°
20°
0.50
0.0
15°
10°
5°
0.00
0
5
10
15
20
25
30
35
40
45
50
55
CFM x 1,000
VAD-42F26
1770 RPM
11.0
110
10.0
100
35°
90
9.00
30°
80
7.00
70
25°
6.00
60
75%
20°
5.00
50
70%
15°
4.00
60%
55%
50%
10°
3.00
5°
2.00
35°
30
30°
20
25°
20°
1.00
0.00
0
40
65%
Horsepower
Total Pressure (in. wg)
8.00
10
15°
10°
5°
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
0
85
CFM x 1,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
61
®
VAD-48H21
Max. Motor Frame Size = 365T
Fan Outlet Area = 12.83 ft.2
Min. Motor Frame Size = 182T
Tip Speed = 12.65 x RPM
Cone Outlet Area = 20.46 ft.
2
Outlet Condition Corrections
6
Pressure Correction, Pc
4
2
2
Pt = Ps + Pc
Pc =
( CFM
(
K
1
0.6
0.4
0.2
0.1
B
A
A Ducted with cone K = 75,030
D
0.06
B Ducted outlet
C
K = 51,380
K = 65,390
K = 41,750
C Free with cone
0.04
D Free discharge
0.02
10
20
30
40
50
60
70
80
90 100
CFM x 1,000
VAD-48H21
870 RPM
1.60
16.0
30°
1.40
12.0
25°
30°
1.00
10.0
81%
20°
80%
25°
0.80
20°
75%
15°
0.60
8.0
70%
6.0
15°
10°
0.40
Horsepower
Total Pressure (in. wg)
1.20
14.0
4.0
10°
5°
0.20
5°
0°
2.0
0°
0.00
0
5
10
15
20
25
30
35
40
45
50
55
60
0.0
65
CFM x 1,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
®
62
VAD-48H21
1170 RPM
3.50
40.0
3.00
30°
30.0
25°
20°
2.00
15°
81%
80%
10°
1.50
20.0
30°
25°
10.0
5°
0°
75%
1.00
Horsepower
Total Pressure (in. wg)
2.50
20°
70%
0.0
15°
10°
0.50
5°
0°
0.00
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
CFM x 1,000
VAD-48H21
1770 RPM
140
7.00
6.00
100
25°
30°
81%
4.00
20°
80
80%
25°
60
3.00
20°
75%
15°
70%
2.00
10°
15°
Horsepower
5.00
Total Pressure (in. wg)
120
30°
40
10°
5°
1.00
20
5°
0°
0°
0.00
0
1
2
3
4
5
6
7
8
9
10
0
12
11
CFM x 10,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
63
®
VAD-48F21
Max. Motor Frame Size = 365T
Fan Outlet Area = 12.83 ft.2
Min. Motor Frame Size = 182T
Tip Speed = 12.65 x RPM
Cone Outlet Area = 20.46 ft.
2
Outlet Condition Corrections
6
Pressure Correction, Pc
4
2
2
Pt = Ps + Pc
Pc =
( CFM
(
K
1
0.6
0.4
0.2
B
0.1
A
A Ducted with cone K = 75,030
D
0.06
B Ducted outlet
C
C Free with cone
0.04
D Free discharge
0.02
10
20
30
40
50
60
K = 51,380
K = 65,390
K = 41,750
70
80
90 100
CFM x 1,000
VAD-48F21
870 RPM
24.0
2.80
2.40
25°
16.0
20°
1.60
12.0
15°
30°
80%
1.20
10°
75%
5°
0.80
8.0
25°
Horsepower
2.00
Total Pressure (in. wg)
20.0
30°
70%
0°
4.0
20°
15°
0.40
0.0
10°
5°
0.00
0
0°
5
10
15
20
25
30
35
40
45
50
55
60
65
70
CFM x 1,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
®
64
VAD-48F21
1170 RPM
5.00
4.50
60
4.00
3.00
40
25°
20°
2.50
10°
0°
20
25°
75%
5°
30
30°
80%
15°
2.00
1.50
50
30°
70%
10
20°
1.00
Horsepower
Total Pressure (in. wg)
3.50
0
15°
10°
0.50
5°
0°
0.00
0
10
20
30
40
50
60
70
80
90
100
CFM x 1,000
VAD-48F21
1770 RPM
11.0
200
180
10.0
30°
160
9.00
140
25°
7.00
120
20°
100
6.00
4.00
10°
3.00
30°
70%
0°
80
25°
75%
5°
2.00
60
20°
40
15°
20
10°
1.00
0.00
0
80%
15°
5.00
Horsepower
Total Pressure (in. wg)
8.00
0
5°
0°
1
2
3
4
5
6
7
8
9
10
11
12
13
14
CFM x 10,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
65
®
VAD-48F26
Max. Motor Frame Size = 445T
Fan Outlet Area = 12.83 ft.2
Min. Motor Frame Size = 254T
Tip Speed = 12.65 x RPM
Cone Outlet Area = 20.46 ft.
2
Outlet Condition Corrections
10
Pressure Correction, Pc
6
4
Pt = Ps + Pc
Pc =
(
CFM
K
2
(
2
1
0.6
0.4
0.2
0.1
B
A
D
A Ducted with cone K = 75,030
B Ducted outlet
C
0.06
0.04
K = 51,380
K = 60,520
K = 36,050
C Free with cone
D Free discharge
0.02
10
20
30
40
50
60
70
80
90 100
CFM x 1,000
VAD-48F26
870 RPM
3.50
24.0
3.00
16.0
25°
20°
2.00
12.0
15°
75%
1.50
10°
8.0
70%
65%
60%
55%
5°
0°
4.0
30°
25°
20°
0.50
Horsepower
Total Pressure (in. wg)
2.50
1.00
20.0
30°
0.0
15°
0.00
0
5
10
0°
15
5°
20
10°
25
30
35
40
45
50
55
60
CFM x 1,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
®
66
VAD-48F26
1170 RPM
5.50
55
5.00
50
30°
4.50
45
40
4.00
3.50
35
20°
3.00
30
75%
2.50
25
15°
70%
2.00
1.50
30°
60%
55%
15
25°
5°
1.00
10
20°
0°
15°
0.50
0.00
0
20
65%
10°
5
10°
5
10
15
0°
20
5°
25
30
35
40
Horsepower
Total Pressure (in. wg)
25°
45
50
55
60
65
70
75
0
80
CFM x 1,000
VAD-48F26
1770 RPM
12.0
250
10.0
200
30°
8.00
150
25°
75%
20°
6.00
100
70%
15°
65%
60%
55%
10°
4.00
5°
0°
30°
50
25°
20°
2.00
Horsepower
Total Pressure (in. wg)
14.0
0
15°
10°
0.00
0
0°
1
2
3
5°
4
5
6
7
8
9
10
11
12
CFM x 10,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
67
®
VAD-48F30
Max. Motor Frame Size = 445T
Fan Outlet Area = 12.83 ft.2
Min. Motor Frame Size = 254T
Tip Speed = 12.65 x RPM
Cone Outlet Area = 20.46 ft.
2
Outlet Condition Corrections
10
Pressure Correction, Pc
6
4
Pt = Ps + Pc
Pc =
(
CFM
K
2
(
2
1
0.6
0.4
0.2
B
D
0.1
A
A Ducted with cone K = 75,030
B Ducted outlet
C
0.06
0.04
C Free with cone
D Free discharge
0.02
10
20
30
40
50
60
K = 51,380
K = 56,090
K = 31,720
70
80
90 100
CFM x 1,000
VAD-48F30
870 RPM
3.50
28.0
3.00
20.0
30°
2.00
1.50
75%
20°
12.0
70%
15°
1.00
16.0
79%
25°
35°
65%
60%
10°
8.0
30°
5°
25°
0.50
Horsepower
2.50
Total Pressure (in. wg)
24.0
35°
4.0
20°
15°
0.00
0
10°
5°
5
10
15
20
25
30
35
40
45
50
55
60
0.0
65
CFM x 1,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
®
68
VAD-48F30
1170 RPM
70
7.00
6.00
60
35°
50
30°
4.00
40
25°
3.00
79%
20°
70%
15°
2.00
20
35°
65%
10°
1.00
30
75%
Horsepower
Total Pressure (in. wg)
5.00
60%
30°
5°
25°
10
20°
15°
10°
5°
0.00
0
10
20
30
40
50
60
70
80
0
100
90
CFM x 1,000
VAD-48F30
1770 RPM
240
14.0
30°
25°
8.00
160
120
79%
20°
6.00
75%
15°
10°
35°
65%
5°
4.00
80
70%
Horsepower
10.0
Total Pressure (in. wg)
200
35°
12.0
60%
40
30°
25°
2.00
0
20°
15°
0.00
0
10°
5°
1
2
3
4
5
6
7
8
9
10
11
12
13
CFM x 10,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
69
®
VAD-54H21
Max. Motor Frame Size = 365T
Fan Outlet Area = 16.50 ft.2
Min. Motor Frame Size = 182T
Tip Speed = 14.35 x RPM
Cone Outlet Area = 24.67 ft.
2
Outlet Condition Corrections
6
Pressure Correction, Pc
4
2
2
Pt = Ps + Pc
Pc =
( CFM
(
K
1
0.6
0.4
0.2
B
0.1
A Ducted with cone K = 91,950
A
B Ducted outlet
0.06
C Free with cone
D
0.04
D Free discharge
C
0.02
10
20
30
40
50
60
K = 66,080
K = 83,120
K = 56,450
70
80
90 100
CFM x 1,000
VAD-54H21
690 RPM
12.0
1.40
30°
10.0
1.20
25°
8.0
20°
0.80
6.0
30°
15°
76%
75%
0.60
4.0
25°
10°
70%
5°
0.40
20°
2.0
15°
0°
Horsepower
Total Pressure (in. wg)
1.00
10°
0.20
0.0
5°
0°
0.00
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
CFM x 1,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
®
70
VAD-54H21
870 RPM
1.80
1.60
24.0
30°
20.0
1.40
16.0
30°
1.20
20°
76%
75%
1.00
15°
0.80
70%
10°
5°
0.60
12.0
25°
8.0
20°
4.0
15°
0°
10°
0.40
Horsepower
Total Pressure (in. wg)
25°
0.0
5°
0.20
0°
0.00
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
CFM x 1,000
VAD-54H21
1170 RPM
60
3.50
30°
50
3.00
25°
Total Pressure (in. wg)
20°
30°
2.00
30
76%
75%
15°
25°
20
1.50
10°
70%
15°
5°
1.00
20°
Horsepower
40
2.50
10
0°
10°
0.50
0
5°
0°
0.00
0
1
2
3
4
5
6
7
8
9
10
11
CFM x 10,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
71
®
VAD-54F21
Max. Motor Frame Size = 365T
Fan Outlet Area = 16.50 ft.2
Min. Motor Frame Size = 182T
Tip Speed = 14.35 x RPM
Cone Outlet Area = 24.67 ft.
2
Outlet Condition Corrections
6
Pressure Correction, Pc
4
2
2
Pt = Ps + Pc
Pc =
( CFM
(
K
1
0.6
0.4
0.2
B
0.1
A Ducted with cone K = 91,950
A
B Ducted outlet
0.06
C Free with cone
D
0.04
D Free discharge
C
0.02
10
20
30
40
50
60
K = 66,080
K = 83,120
K = 56,450
70
80
90 100
CFM x 1,000
VAD-54F21
690 RPM
1.80
18.0
1.60
16.0
30°
14.0
25°
1.20
12.0
78%
1.00
10.0
20°
30°
75%
0.80
8.0
15°
0.60
70%
4.0
15°
5°
10°
0°
0.20
6.0
20°
10°
0.40
25°
2.0
5°
0°
0.00
0
5
10
15
20
25
30
35
Horsepower
Total Pressure (in. wg)
1.40
40
45
50
55
60
65
70
0.0
75
CFM x 1,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
®
72
VAD-54F21
870 RPM
3.50
35
30°
3.00
30
25°
2.00
25
20
20°
78%
15°
1.50
25°
70%
10°
1.00
15
30°
75%
Horsepower
Total Pressure (in. wg)
2.50
10
20°
5°
0.50
15°
0°
5
10°
5°
0°
0.00
0
10
20
30
40
50
60
70
80
0
100
90
CFM x 1,000
VAD-54F21
1170 RPM
5.50
90
5.00
4.50
80
30°
70
25°
3.50
3.00
50
30°
75%
15°
2.00
70%
10°
40
25°
30
20°
1.50
20
5°
15°
0°
10
10°
0.50
0.00
0
78%
20°
2.50
1.00
60
Horsepower
Total Pressure (in. wg)
4.00
0
5°
0°
1
2
3
4
5
6
7
8
9
10
11
12
CFM x 10,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
73
®
VAD-54F26
Max. Motor Frame Size = 445T
Fan Outlet Area = 16.50 ft.2
Min. Motor Frame Size = 254T
Tip Speed = 14.35 x RPM
Cone Outlet Area = 24.67 ft.
2
Outlet Condition Corrections
10
Pressure Correction, Pc
6
2
Pt = Ps + Pc
4
Pc =
( CFM
(
K
2
1
0.6
0.4
B
0.2
A
D
0.1
A Ducted with cone K = 91,950
C
B Ducted outlet
0.06
0.04
K = 66,080
K = 79,140
K = 50,740
C Free with cone
D Free discharge
0.02
15
20
30
40
50
60
70
80
90 100
150
CFM x 1,000
VAD-54F26
870 RPM
3.50
3.00
40
30°
30
25°
20°
2.00
75%
20
15°
10°
1.50
70%
5°
0°
60%
1.00
10
30°
65%
25°
Horsepower
Total Pressure (in. wg)
2.50
0
20°
15°
0.50
10°
5°
0.00
0
0°
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
CFM x 1,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
®
74
VAD-54F26
1170 RPM
7.00
6.00
100
30°
80
25°
4.00
60
20°
75%
15°
3.00
40
70%
10°
5°
2.00
30°
65%
60%
0°
Horsepower
Total Pressure (in. wg)
5.00
20
25°
20°
0
15°
1.00
10°
0.00
0
5°
0°
1
2
3
4
5
6
7
8
9
10
11
12
CFM x 10,000
VAD-54F26
1770 RPM
350
14.0
12.0
250
25°
75%
8.00
200
20°
70%
6.00
15°
60%
10°
4.00
150
30°
65%
Horsepower
10.0
Total Pressure (in. wg)
300
30°
25°
100
20°
5°
2.00
15°
0°
50
10°
5°
0.00
0
0°
2
4
6
8
10
12
14
16
0
20
18
CFM x 10,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
75
®
VAD-54F30
Max. Motor Frame Size = 445T
Fan Outlet Area = 16.50 ft.2
Min. Motor Frame Size = 254T
Tip Speed = 14.35 x RPM
Cone Outlet Area = 24.67 ft.
2
Outlet Condition Corrections
10
Pressure Correction, Pc
6
2
Pt = Ps + Pc
4
Pc =
( CFM
(
K
2
1
0.6
0.4
B
0.2
A
D
0.1
A Ducted with cone K = 91,950
C
B Ducted outlet
0.06
0.04
K = 66,080
K = 75,640
K = 46,420
C Free with cone
D Free discharge
0.02
15
20
30
40
50
60
70
80
90 100
150
CFM x 1,000
VAD-54F30
870 RPM
3.50
3.00
40
30°
30
25°
77%
20°
2.00
20
75%
15°
70%
10°
1.50
5°
10
65%
0°
1.00
30°
Horsepower
Total Pressure (in. wg)
2.50
0
25°
20°
0.50
15°
10°
0.00
0
5
10
15
0°
20
5°
25
30
35
40
45
50
55
60
65
70
75
80
85
90
CFM x 1,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
®
76
VAD-54F30
1170 RPM
7.00
6.00
100
30°
80
25°
77%
4.00
20°
3.00
60
75%
15°
65%
10°
2.00
40
70%
Horsepower
Total Pressure (in. wg)
5.00
30°
20
5°
25°
0°
20°
1.00
0
15°
10°
0.00
0
1
0°
2
5°
3
4
5
6
7
8
9
10
11
12
CFM x 10,000
VAD-54F30
1770 RPM
14.0
12.0
400
300
30°
77%
25°
8.00
75%
20°
15°
6.00
200
70%
10°
100
65%
5°
30°
0°
4.00
Horsepower
Total Pressure (in. wg)
10.0
0
25°
20°
2.00
15°
10°
0.00
0
2
0°
4
5°
6
8
10
12
14
16
18
20
CFM x 10,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
77
®
VAD-60H26
Max. Motor Frame Size = 445T
Fan Outlet Area = 20.29 ft.2
Min. Motor Frame Size = 254T
Tip Speed = 15.91 x RPM
Cone Outlet Area = 30.68 ft.
2
Outlet Condition Corrections
6
Pressure Correction, Pc
4
2
2
Pt = Ps + Pc
Pc =
( CFM
(
K
1
0.6
0.4
0.2
0.1
0.06
B
A
A Ducted with cone K = 114,050
D
B Ducted outlet
C
C Free with cone
0.04
D Free discharge
0.02
15
20
30
40
50
60
70
80
K = 81,280
K = 100,510
K = 65,940
90 100
150
CFM x 1,000
VAD-60H26
690 RPM
24.0
1.40
30°
Total Pressure (in. wg)
1.00
20.0
76%
25°
75%
0.80
20°
70%
15°
0.60
12.0
25°
20°
10°
0.40
16.0
30°
8.0
Horsepower
1.20
15°
4.0
5°
0°
10°
0.20
0
5°
0°
0.00
0
10
20
30
40
50
60
70
80
90
100
CFM x 1,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
®
78
VAD-60H26
870 RPM
2.80
2.40
50
30°
25°
1.60
40
76%
20°
1.20
20
20°
10°
10
15°
5°
0°
25°
70%
15°
0.80
30
30°
75%
Horsepower
Total Pressure (in. wg)
2.00
10°
0.40
0
5°
0°
0.00
0
1
2
3
4
5
6
7
8
9
10
11
CFM x 10,000
VAD-60H26
1170 RPM
4.50
4.00
120
100
30°
3.00
25°
80
76%
30°
75%
2.50
60
20°
25°
70%
15°
2.00
20°
10°
1.50
40
20
5°
0°
Horsepower
Total Pressure (in. wg)
3.50
15°
1.00
0
10°
5°
0.50
0°
0.00
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
CFM x 10,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
79
®
VAD-60F26
Max. Motor Frame Size = 445T
Fan Outlet Area = 20.29 ft.2
Min. Motor Frame Size = 254T
Tip Speed = 15.91 x RPM
Cone Outlet Area = 30.68 ft.
2
Outlet Condition Corrections
6
Pressure Correction, Pc
4
2
2
Pt = Ps + Pc
Pc =
( CFM
(
K
1
0.6
0.4
0.2
0.1
0.06
B
A
A Ducted with cone K = 114,050
D
B Ducted outlet
C
C Free with cone
0.04
D Free discharge
0.02
15
20
30
40
50
60
70
80
K = 81,280
K = 100,510
K = 65,940
90 100
150
CFM x 1,000
VAD-60F26
690 RPM
2.20
32.0
2.00
28.0
30°
1.80
24.0
1.60
20.0
1.40
20°
1.20
16.0
30°
15°
1.00
12.0
70%
10°
0.80
0.60
76%
75%
25°
8.0
65%
5°
20°
4.0
0°
15°
0.40
Horsepower
Total Pressure (in. wg)
25°
0.0
10°
0.20
0.00
0
5°
0°
10
20
30
40
50
60
70
80
90
100
CFM x 1,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
®
80
VAD-60F26
870 RPM
3.50
60
30°
3.00
50
25°
40
20°
2.00
76%
75%
15°
1.50
30
30°
70%
10°
65%
5°
1.00
20
25°
Horsepower
Total Pressure (in. wg)
2.50
20°
10
0°
15°
0.50
0
10°
5°
0.00
0
0°
1
2
3
4
5
6
7
8
9
10
11
12
CFM x 10,000
VAD-60F26
1170 RPM
7.00
6.00
160
30°
120
25°
20°
4.00
80
76%
75%
15°
10°
3.00
5°
30°
70%
0°
40
25°
65%
2.00
Horsepower
Total Pressure (in. wg)
5.00
0
20°
15°
1.00
10°
5°
0.00
0
0°
2
4
6
8
10
12
14
16
18
20
CFM x 10,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
81
®
VAD-60F30
Max. Motor Frame Size = 445T
Fan Outlet Area = 20.29 ft.2
Min. Motor Frame Size = 254T
Tip Speed = 15.91 x RPM
Cone Outlet Area = 30.68 ft.
2
Outlet Condition Corrections
6
Pressure Correction, Pc
4
2
2
Pt = Ps + Pc
Pc =
( CFM
(
K
1
0.6
0.4
0.2
B
0.1
A
A Ducted with cone K = 114,050
D
0.06
B Ducted outlet
C
C Free with cone
0.04
D Free discharge
0.02
15
20
30
40
50
60
70
80
K = 81,280
K = 97,280
K = 61,620
90 100
150
CFM x 1,000
VAD-60F30
2.80
690 RPM
30
30°
25
2.40
25°
20
20°
77%
1.60
15
15°
75%
10°
1.20
10
5°
0.80
30°
70%
65%
25°
0°
Horsepower
Total Pressure (in. wg)
2.00
5
20°
0
15°
0.40
10°
0.00
0
5°
0°
10
20
30
40
50
60
70
80
90
100
110
CFM x 1,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
®
82
VAD-60F30
870 RPM
4.00
70
3.50
60
30°
3.00
50
77%
40
20°
75%
2.00
30
15°
30°
70%
10°
1.50
20
65%
25°
5°
1.00
0°
10
20°
15°
0.50
0
10°
5°
0°
0.00
0
1
2
Horsepower
Total Pressure (in. wg)
25°
2.50
3
4
5
6
7
8
9
10
11
12
CFM x 10,000
VAD-60F30
1170 RPM
7.00
160
6.00
30°
120
25°
77%
20°
4.00
80
75%
15°
10°
3.00
30°
70%
5°
0°
65%
40
Horsepower
Total Pressure (in. wg)
5.00
25°
0
2.00
20°
15°
1.00
10°
0.00
0
5°
0°
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
CFM x 10,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
83
®
VAD-66H26
Max. Motor Frame Size = 445T
Fan Outlet Area = 24.48 ft.2
Min. Motor Frame Size = 254T
Tip Speed = 17.48 x RPM
Cone Outlet Area = 36.67 ft.
2
Outlet Condition Corrections
6
Pressure Correction, Pc
4
2
2
Pt = Ps + Pc
Pc =
( CFM
(
K
1
0.6
0.4
0.2
0.1
B
A
A Ducted with cone K = 136,640
D
B Ducted outlet
C
0.06
K = 98,060
K = 122,800
K = 82,720
C Free with cone
0.04
D Free discharge
0.02
20
30
40
50
60
70
80
90 100
200
CFM x 1,000
VAD-66H26
690 RPM
1.60
32.0
1.40
28.0
30°
1.20
24.0
1.00
30°
74%
20°
0.80
25°
20.0
16.0
70%
0.60
20°
15°
12.0
65%
Horsepower
Total Pressure (in. wg)
25°
15°
10°
0.40
8.0
10°
5°
0.20
5°
0°
4.0
0°
0.00
0
1
2
3
4
5
6
7
8
9
10
0
11
CFM x 10,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
®
84
VAD-66H26
870 RPM
60
2.80
30°
50
2.40
25°
40
20°
1.60
15°
25°
1.20
20
70%
10°
20°
65%
5°
0.80
30
30°
74%
Horsepower
Total Pressure (in. wg)
2.00
10
15°
0°
10°
0.40
0
5°
0°
0.00
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
CFM x 10,000
VAD-66H26
1170 RPM
4.50
160
4.00
140
30°
120
25°
3.00
74%
2.50
100
30°
80
20°
25°
2.00
70%
15°
1.50
60
20°
65%
10°
40
15°
5°
1.00
20
10°
0°
5°
0.50
Horsepower
Total Pressure (in. wg)
3.50
0
0°
0.00
0
2
4
6
8
10
12
14
16
18
20
CFM x 10,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
85
®
VAD-66F26
Max. Motor Frame Size = 445T
Fan Outlet Area = 24.48 ft.2
Min. Motor Frame Size = 254T
Tip Speed = 17.48 x RPM
Cone Outlet Area = 36.67 ft.
2
Outlet Condition Corrections
6
Pressure Correction, Pc
4
2
2
Pt = Ps + Pc
Pc =
( CFM
(
K
1
0.6
0.4
0.2
B
0.1
A
A Ducted with cone K = 136,640
D
B Ducted outlet
C
0.06
C Free with cone
0.04
D Free discharge
0.02
20
30
40
50
60
70
80
K = 98,060
K = 122,800
K = 82,720
90 100
200
CFM x 1,000
VAD-66F26
690 RPM
2.80
50
2.40
30°
40
25°
1.60
30
77%
20°
1.20
75%
30°
20
15°
70%
10°
0.80
65%
5°
0°
25°
Horsepower
Total Pressure (in. wg)
2.00
10
20°
15°
0.40
0
10°
5°
0.00
0
0°
1
2
3
4
5
6
7
8
9
10
11
12
13
CFM x 10,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
®
86
VAD-66F26
870 RPM
3.50
120
3.00
100
2.50
30°
80
77%
25°
2.00
20°
1.50
30°
75%
25°
70%
15°
40
65%
10°
1.00
60
Horsepower
Total Pressure (in. wg)
4.00
20°
5°
20
15°
0°
10°
0.50
0
5°
0.00
0
0°
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
CFM x 10,000
1170 RPM
7.00
280
6.00
240
Total Pressure (in. wg)
5.00
200
30°
77%
4.00
160
25°
30°
75%
3.00
70%
20°
65%
15°
2.00
10°
80
10°
0°
0.00
0
20°
15°
5°
1.00
120
25°
40
5°
0°
2
Horsepower
VAD-66F26
4
6
8
10
12
14
16
18
0
22
20
CFM x 10,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
87
®
VAD-66F30
Max. Motor Frame Size = 445T
Fan Outlet Area = 24.48 ft.2
Min. Motor Frame Size = 254T
Tip Speed = 17.48 x RPM
Cone Outlet Area = 36.67 ft.
2
Outlet Condition Corrections
6
Pressure Correction, Pc
4
2
2
Pt = Ps + Pc
Pc =
( CFM
(
K
1
0.6
0.4
0.2
B
0.1
A
A Ducted with cone K = 136,640
D
B Ducted outlet
C
0.06
C Free with cone
0.04
D Free discharge
0.02
20
30
40
50
60
70
80
K = 98,060
K = 119,850
K = 78,400
90 100
200
CFM x 1,000
VAD-66F30 690 RPM
2.80
50
2.40
30°
40
25°
76%
1.60
30
75%
20°
1.20
20
65%
10°
5°
0.80
30°
70%
15°
25°
10
20°
0°
Horsepower
Total Pressure (in. wg)
2.00
15°
0.40
0
10°
5°
0.00
0
0°
1
2
3
4
5
6
7
8
9
10
11
12
13
CFM x 10,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
®
88
VAD-66F30
870 RPM
4.00
120
3.50
100
30°
3.00
80
76%
75%
25°
2.50
60
20°
2.00
10°
1.50
30°
70%
15°
65%
25°
5°
0°
40
Horsepower
Total Pressure (in. wg)
4.50
20
20°
1.00
0
15°
10°
0.50
5°
0.00
0
0°
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
CFM x 10,000
VAD-66F30
1170 RPM
8.00
7.00
250
30°
200
25°
5.00
4.00
150
76%
75%
20°
15°
10°
3.00
65%
5°
100
30°
70%
50
25°
Horsepower
Total Pressure (in. wg)
6.00
0°
20°
2.00
0
15°
1.00
10°
5°
0.00
0
0°
2
4
6
8
10
12
14
16
18
20
22
CFM x 10,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
89
®
VAD-72H26
Max. Motor Frame Size = 445T
Fan Outlet Area = 29.07 ft.2
Min. Motor Frame Size = 254T
Tip Speed = 19.05 x RPM
Cone Outlet Area = 43.20 ft.
2
Outlet Condition Corrections
6
Pressure Correction, Pc
4
2
2
Pt = Ps + Pc
Pc =
( CFM
(
K
1
0.6
0.4
B
0.2
0.1
A
A Ducted with cone K = 161,260
D
B Ducted outlet
C
0.06
C Free with cone
0.04
0.02
25
D Free discharge
30
40
50
60
70
80
K = 116,410
K = 146,960
K = 101,070
90 100
200
250
CFM x 1,000
VAD-72H26
690 RPM
1.60
40
30°
35
1.40
25°
30
30°
1.00
76%
25
25°
75%
20°
0.80
70%
20
20°
15°
0.60
15
15°
10°
0.40
Horsepower
Total Pressure (in. wg)
1.20
10
10°
5°
0.20
5°
0°
5
0°
0.00
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
0
CFM x 10,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
®
90
VAD-72H26 870 RPM
2.80
2.40
2.00
60
25°
30°
20°
1.60
76%
75%
15°
10°
1.20
70%
5°
0°
40
25°
20°
20
Horsepower
Total Pressure (in. wg)
80
30°
15°
0.80
0
10°
0.40
5°
0°
0.00
0
2
4
6
8
10
12
14
16
18
20
CFM x 10,000
VAD-72H26 1170 RPM
5.00
4.50
240
4.00
200
30°
30°
160
3.00
25°
2.50
25°
76%
75%
120
20°
2.00
70%
15°
10°
1.50
0°
20°
80
15°
40
5°
10°
1.00
Horsepower
Total Pressure (in. wg)
3.50
0
5°
0.50
0°
0.00
0
2
4
6
8
10
12
14
16
18
20
22
24
26
CFM x 10,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
91
®
VAD-72F26
Max. Motor Frame Size = 445T
Fan Outlet Area = 29.07 ft.2
Min. Motor Frame Size = 254T
Tip Speed = 19.05 x RPM
Cone Outlet Area = 43.20 ft.
2
Outlet Condition Corrections
6
Pressure Correction, Pc
4
2
2
Pt = Ps + Pc
Pc =
( CFM
(
K
1
0.6
0.4
B
0.2
0.1
A
A Ducted with cone K = 161,260
D
B Ducted outlet
C
0.06
C Free with cone
0.04
D Free discharge
0.02
25
30
40
50
60
70
80
K = 116,410
K = 146,960
K = 101,070
90 100
200
250
CFM x 1,000
VAD-72F26
690 RPM
60
2.80
30°
50
2.40
25°
40
20°
1.60
79%
15°
1.20
10°
25°
75%
70%
5°
0.80
30
30°
20
Horsepower
Total Pressure (in. wg)
2.00
20°
10
0°
15°
10°
0.40
0
5°
0.00
0
0°
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
CFM x 10,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
®
92
VAD-72F26
870 RPM
4.50
140
4.00
120
3.50
100
3.00
25°
2.50
80
30°
79%
20°
2.00
15°
1.50
70%
10°
5°
1.00
60
25°
75%
40
20°
15°
0°
Horsepower
Total Pressure (in. wg)
30°
20
10°
0.50
0
5°
0°
0.00
2
0
4
6
8
10
12
14
16
18
20
22
CFM x 10,000
VAD-72F26
1170 RPM
8.00
7.00
300
30°
250
25°
5.00
20°
4.00
30°
79%
15°
3.00
200
150
25°
75%
10°
70%
100
20°
5°
2.00
50
15°
0°
10°
1.00
0
5°
0.00
0
Horsepower
Total Pressure (in. wg)
6.00
0°
2
4
6
8
10
12
14
16
18
20
22
24
26
28
CFM x 10,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
93
®
VAD-72F30
Max. Motor Frame Size = 445T
Fan Outlet Area = 29.07 ft.2
Min. Motor Frame Size = 254T
Tip Speed = 19.05 x RPM
Cone Outlet Area = 43.20 ft.
2
Outlet Condition Corrections
6
Pressure Correction, Pc
4
2
Pt = Ps + Pc
2
Pc =
( CFM
(
K
1
0.6
0.4
B
0.2
0.1
A
A Ducted with cone K = 161,260
D
B Ducted outlet
C
0.06
C Free with cone
0.04
D Free discharge
0.02
25
30
40
50
60
70
80
90 100
K = 116,410
K = 144,200
K = 96,740
200
250
CFM x 1,000
VAD-72F30
690 RPM
3.50
70
3.00
60
30°
50
25°
79%
2.00
40
20°
75%
1.50
30°
30
70%
15°
Horsepower
Total Pressure (in. wg)
2.50
25°
10°
1.00
5°
0.50
20
20°
15°
0°
10
10°
5°
0.00
0
0°
2
4
6
8
10
12
14
16
18
0
20
CFM x 10,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
®
94
VAD-72F30
870 RPM
5.00
140
4.50
3.50
Total Pressure (in. wg)
120
30°
3.00
100
79%
25°
80
20°
2.50
75%
15°
2.00
30°
60
70%
10°
40
25°
Horsepower
4.00
5°
1.50
1.00
0
15°
10°
0.50
0.00
20
20°
0°
5°
0°
2
0
4
6
8
10
12
14
16
18
20
22
CFM x 10,000
VAD-72F30
1170 RPM
9.00
300
8.00
30°
250
7.00
6.00
200
79%
20°
5.00
4.00
30°
70%
10°
100
25°
5°
3.00
150
75%
15°
Horsepower
Total Pressure (in. wg)
25°
50
0°
20°
2.00
0
15°
10°
1.00
5°
0.00
0
0°
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
CFM x 10,000
Performance certified is for model VAD installation type D: Ducted inlet, Ducted outlet. Power ratings (Bhp) do not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
95
®
Sound Data
Greenheck’s Reverberant Sound Chamber
Vane axial fans in this brochure were tested in Greenheck’s third-party accredited reverberant sound chamber.
Methods and procedures used in these tests provide sound power ratings which may be used as a comparison
against other fans rated similarly.
The test method requires use of a reference sound source (RSS), a small direct drive centrifugal fan of known
sound power levels.
Sound pressure levels are recorded with the RSS operating. The fan is then operated without the RSS in
operation at various performance points of interest for the given test speed, and the fan sound pressure levels
are recorded. Since the sound power levels of the RSS are known, the substitution method is used to determine
the sound power levels of the fan for each operating point.
Accuracy of these test methods are dependent upon several variables. These variables include reverberant
room response, instrument error, fan operating points and accuracy of the RSS.
Within the present technology, differences in sound power levels of 2 dB or less are not considered significant.
In comparing products of different manufacturers, it is good practice to disregard differences of less than 4dB.
This is particularly true in the first octave band where differences of 6dB or less should be disregarded.
Sound power data acquired from the tests is presented in this manual as dB (re 10-12 watt) in each of the eight
octave bands. Provisions are made for interpolating the data to obtain the sound power levels at the desired
point of operation.
Sound power is an absolute quantity of sound energy per unit of time and is valuable for determining sound
levels at a variety of conditions.
For detailed application information on sound power level ratings see AMCA Publication 303.
®
96
Sound Data
Sound Power Level
Sound power level is the measurements of acoustic power generated by a fan when operating at a specific point.
In this manual sound power levels are expressed as dB’s (re 10-12 watt) and are published for each of the eight
octave bands (described below). Sound power is acoustic power radiating from a sound source and cannot be
heard by the human ear just as candlepower of a light cannot be seen by the human eye. It is useful in comparing
fans of various manufacturers and for calculating sound pressure (described below).
Sound power levels published in this manual are measured at the fan inlet. Outlet sound power levels are
considered to be approximately the same as inlet sound power levels. Since these fans were tested with a free
inlet and an inlet bell, no duct end reflection corrections were added to the measured sound power levels.
Sound Pressure Level
Sound pressure level is acoustic pressure which can be heard by a microphone or listener at a specific location.
Sound pressure is a variable determined by the acoustical environment. The acoustical environment is affected
by items such as wall coverings, ceiling tiles, carpets, furniture and any other sound-absorbing device.
Decibel (dB)
Decibels is a logarithmic term used to describe units of sound power or sound pressure. The suggested
method of expressing decibels is “decibels of sound power” or “decibels of sound pressure” in order to avoid
confusion.
Octave Bands
A range of sound frequencies generally within the capability of human hearing (50 to 15000 Hz). This range of
frequencies is divided into eight octave bands. An octave is the span between two frequencies, one of which is
twice the frequency of the other.
See chart for center frequencies assigned to each octave band.
Octave Band
Center Frequency
1
63
2
125
3
250
4
500
5
6
7
8
1000 2000 4000 8000
Attenuation
Attenuation is the reduction in sound as it travels from its origin to the point of reception. Sound may be
attenuated by sound absorbing materials, inline sound attenuators, room furnishings, and other items which
absorb or deflect sound waves.
In a “hemispherical free field” at a distance of at least one wavelength from the radiating source, sound will
attenuate or decay 6 dB each time the distance from the fan is doubled.
Acoustical Diffuser Cone
An acoustical diffuser cone is an add-on diffuser and silencer used for vane axial fans. The acoustical diffuser
cone serves the two-fold purpose of (1) allowing high velocity discharge airflow to gradually expand and
reduce velocity pressure losses and (2) to attenuate sound transmitted from the fan outlet. Some acoustical
diffuser cones are equipped with a center cone which reduces core turbulence and provides additional sound
attenuation.
Acoustical Silencer
Inline acoustical silencers are typically installed at the inlet or outlet, or both ends of a vane axial fan. They are
usually double-wall construction with a perforated inner liner and sound absorbing material such as fiberglass
packed between the walls. Acoustical silencers add considerable length to a vane axial fan and are ineffective
with regard to sound radiated through the fan housing. Additional pressure losses are also experienced with
most acoustical silencers.
Sound Trap Vane Axial
Greenheck’s double-shell vane axial fan housing is designed to reduce inlet and radiated sound power levels.
No additional pressure losses are experienced with Sound Trap fans when compared to standard vane axial
fans. Consult the Vane Axial Application and Design catalog or the Sound Trap Housing brochure at www.greenheck.com.
97
®
Calculating Belt Drive Sound Power Levels
To calculate sound power levels for belt drive vane axial fans, use the following formula:
Lw = Lwb + Eff. Corr.
Lw = Sound Power Level
Lwb = Base Sound Power Level
Eff. Corr. = Efficiency Correction Factor
Example:VABS-24F14
1450 RPM
8000 cfm
0.25 in. wg static pressure
1.39 Bhp
C. Enter the Efficiency Correction Factor table with
the efficiency ratio. Read efficiency corrections
(dB) from the chart below.
Efficiency Correction Factor
Efficiency Ratio
1 1.05 1.1 1.2 1.4 1.7+
Efficiency Correction (dB) 0
2
4
6
8 10
Step 1. Determine the Base Sound Power (Lwb )
Levels for a specific fan, hub size and fan speed
on pages 99 and 100. Base sound power levels in
the eight octave bands are published for each fan
size/hub size combination and for five specific fan
speeds. Use interpolation to select base sound power
levels for RPM’s not shown.
Efficiency Correction Factor = 10 dB
Step 3. dB Correction for Sound Trap Fans. Use
the following corrections for Sound Trap construction:
Base sound power levels for this example are:
Octave Band
1
2
3
4
5
6
7
Lwb
80 82 86 85 82 77 73 69
Sound Trap Correction Factor
Octave Band
1
2
3
4
5
6
dB Reduction
0 -3 -7 -10 -10 -7
8
Unit Maximum Static Efficiency
=
Octave Band
+ Step 1
+ Step 2
+ Step 3
= Lw
64%
B. Calculate the Efficiency Ratio.
i. First, calculate the actual static efficiency. Actual Static Efficiency =
=
CFM x Ps
Bhp x 6356
8,000 x 0.25
1.39 x 6356
=
X 100%
X 100%
22.6%
ii. Then calculate the efficiency ratio.
Efficiency Ratio =
=
®
Maximum Static Efficiency
Actual Static Efficiency
64%
22.6%
8
-1
Step 4. Finally, total the values found in Steps 1
thru 3 to determine Lw:
Step 2. Determine the Efficiency Correction
Factor. To calculate the Efficiency Correction Factor
use the following steps:
A. Record the Unit Maximum Static Efficiency (Max. S.E.) from the Base Sound Power Level charts on pages 99 and 100.
7
-7
= 2.83
98
1
2
3
4
5
80 82 86 85 82
10 10 10 10 10
0 -3 -7 -10 -10
90 89 89 85 82
6
7
8
77 73 69
10 10 10
-7 -7 -1
80 76 78
Belt Drive Base Sound Power Levels
Octave Band
Fan Model
RPM
VAB-18F14
900
62 67 68 66 60 54 50 46
1700
77 76 81 81 79 74 67 63
2600
85 86 87 90 90 86 80 75
3500
91 93 92 96 97 95 90 83
VAB-20F14
VAB-24F14
VAB-24F17
VAB-30F14
VAB-30F17
VAB-30F21
1
2
3
4
5
6
7
8
4300
94 97 96 100 101 100 96 89
1000
66 72 72 70 65 60 55 51
1700
78 78 84 83 81 76 70 66
2450
85 86 89 91 90 86 81 76
3200
90 92 93 97 97 94 89 83
3900
93 96 95 101 101 100 95 89
850
69 75 74 72 67 62 58 54
1450
80 82 86 85 82 77 73 69
2050
86 88 93 94 92 87 82 78
2650
91 93 96 99 98 95 90 85
3250
94 97 99 104 103 101 96 91
850
68 73 74 72 66 62 59 56
1450
79 80 86 86 82 76 73 70
2050
85 87 90 93 91 87 82 79
2650
89 92 94 99 98 95 89 85
3250
93 96 97 103 103 101 95 91
Max Static
Efficiency
Octave Band
Fan Model
RPM
VAB-36F14
650
78 79 77 76 72 66 59 52
1000
83 90 87 86 84 80 73 66
1400
88 94 96 94 93 89 84 77
1800
91 96 103 99 99 97 92 85
55
VAB-36F17
58
VAB-36F21
64
VAB-36F26
61
VAB-42F17
1
2
3
4
5
6
7
8
2150
94 99 106 104 103 101 97 90
650
74 80 78 77 72 67 62 57
1000
81 86 88 87 84 80 75 70
1400
87 90 97 95 94 89 84 79
1800
92 94 100 101 100 96 92 87
2150
95 97 102 105 104 101 97 92
650
73 83 80 77 73 68 64 60
1000
81 86 91 88 85 81 76 72
1400
87 89 98 97 94 90 86 81
1800
92 94 100 104 101 97 93 88
2150
95 97 101 108 105 102 98 93
650
72 81 81 77 72 67 64 61
1000
80 84 93 89 84 80 75 72
1400
86 89 96 98 94 89 85 81
1800
90 93 98 105 101 96 92 87
2150
93 96 99 110 106 101 97 92
550
76 80 81 78 72 67 62 57
850
82 88 90 90 86 80 75 70
1200
88 92 97 98 96 90 85 80
800
75 80 78 76 72 67 62 57
1250
82 87 89 87 84 80 75 70
1700
88 90 97 94 93 89 84 79
2150
92 94 101 100 98 95 90 85
1550
93 96 101 104 103 98 92 87
2600
95 98 103 105 103 100 96 91
1850
96 99 104 107 107 103 97 92
550
77 82 81 80 74 69 63 57
850
83 89 91 90 87 82 77 71
1200
89 93 99 98 97 92 87 81
93 97 103 104 103 99 94 89
58
VAB-42F21
800
72 80 78 77 72 68 64 60
1250
81 84 89 87 85 80 76 72
1700
87 88 95 95 93 89 84 80
2150
91 93 98 101 99 95 91 87
1550
2600
94 97 99 105 103 101 96 92
1850
96 99 105 108 107 105 100 94
800
69 76 77 74 69 65 62 60
550
75 83 81 78 74 68 64 60
1250
79 78 89 85 82 77 73 71
1700
85 86 91 94 90 86 82 79
2150
2600
60
VAB-42F26
850
82 87 92 89 86 81 76 72
1200
87 91 98 98 95 91 86 81
89 91 93 100 96 93 88 85
1550
92 95 101 104 102 98 94 88
92 95 94 105 101 99 94 90
1850
95 98 103 109 106 103 99 93
62
*See page 98 for belt drive instructions. The AMCA Certified Ratings Seal applies to air performance ratings only.
99
®
Max Static
Efficiency
60
61
64
60
61
65
63
Belt Drive Base Sound Power Levels
Octave Band
Fan Model
RPM
VAB-48F21
400
80 81 81 78 73 66 59 52
700
88 93 93 93 89 84 77 70
1000
92 98 101 100 99 94 88 81
1300
96 102 107 106 106 102 96 89
1
2
3
4
5
6
7
8
Max Static
Efficiency
RPM
VAB-60F26
400
82 85 84 81 76 71 66 61
600
87 93 93 92 88 83 78 73
60
1600 100 104 110 111 111 108 103 96
VAB-48F26
VAB-48F30
VAB-54F21
VAB-54F26
VAB-54F30
Octave Band
Fan Model
VAB-60F30
1
2
3
4
5
7
8
850
92 98 101 100 97 93 88 83
1100
96 101 107 106 104 101 96 91
1300
99 104 109 110 109 105 100 95
400
81 85 84 81 77 71 67 63
600
86 92 93 91 88 83 79 75
400
78 81 79 77 72 67 61 55
700
85 92 93 91 88 83 78 72
1000
91 96 102 100 98 94 89 83
850
91 97 102 100 97 94 88 84
1300
95 99 106 106 104 101 96 90
1100
96 100 106 107 104 101 96 91
1600
99 102 108 111 109 107 102 97
1300
98 103 108 110 108 105 101 96
400
75 82 79 76 72 66 61 56
350
82 84 82 79 75 70 66 62
700
84 89 93 91 88 83 77 72
550
88 94 93 92 88 83 79 75
1000
90 93 101 99 97 94 88 83
750
93 98 101 99 96 92 87 83
1300
94 97 104 106 104 101 96 90
950
96 101 106 105 103 99 94 90
1600
98 101 105 112 109 107 102 96
1150
99 104 110 110 108 104 99 95
400
83 84 84 82 76 69 61 53
350
81 84 82 79 75 71 67 63
650
91 95 94 95 91 85 77 69
550
87 93 93 91 88 83 79 75
900
94 100 102 102 100 95 88 80
750
92 97 100 99 96 92 87 83
1150
97 104 107 106 107 103 96 88
950
96 100 106 105 102 99 94 90
1400 100 106 111 111 111 108 103 95
1150
99 103 108 109 107 104 100 95
350
84 87 85 81 76 73 71 69
550
90 96 96 94 89 85 82 80
700
94 99 102 100 96 91 88 86
96 102 106 105 101 97 93 91
63
VAB-66F26
65
VAB-66F30
60
VAB-72F26
400
80 83 82 80 75 69 63 57
650
86 92 93 92 89 84 78 72
900
91 96 101 100 98 93 87 81
1150
95 100 106 105 104 101 95 89
850
1400
98 103 108 110 109 106 101 95
1050 100 105 110 110 107 103 98 96
400
79 84 82 80 75 70 65 60
650
86 92 94 92 89 84 79 74
900
91 96 102 100 98 94 89 84
1150
1400
62
VAB-72F30
350
84 87 84 81 77 73 69 65
550
91 96 96 93 89 86 82 78
700
95 99 102 99 96 92 88 84
96 99 105 106 104 101 96 91
850
98 102 106 105 101 98 94 90
99 102 108 111 109 106 102 97
1050 101 105 110 110 106 103 99 95
65
*See page 98 for belt drive instructions. The AMCA Certified Ratings Seal applies to air performance ratings only.
®
6
100
Max Static
Efficiency
58
62
58
62
58
62
Calculating Direct Drive Sound Power Levels
To calculate sound power levels for direct drive vane axial fans, use the following formula:
Lw = Lwb + Eff. Corr. + 10 Log10 (cfm x PT2)
Lw = Sound Power Level.
Lwb = Base Sound Power Level.
Eff. Corr. = Efficiency Correction Factor.
10 Log10 (cfm x PT2 ) = Volume/Pressure Correction Factor
Example:VADS-24F14-20A
1770 RPM
6,800 cfm
2.0 in. wg total pressure
2.87 Bhp
C. Enter the Efficiency Correction Factor Chart with
the efficiency ratio. Read efficiency corrections
(dB) from the chart below.
Step 1. Determine the Base Sound Power Levels
for a specific fan, hub size and fan speed on
pages 102 and 103. Base sound power levels in the
eight octave bands are published for each fan size/
hub size combination and for each charted fan speed.
Base sound power levels for this example are:
Octave Band
1
2
3
4
5
6
7
8
Lwb
36 38 43 43 41 36 31 27
Step 2. Determine the Efficiency Correction
Factor. To calculate the Efficiency Correction Factor
use the following steps:
A. Record the Unit Maximum Total Efficiency
(Max. T.E.) from the Base Sound Power Level
charts on pages 102 and 103.
Unit Maximum Total Efficiency
=
=
=
CFM x PT
Bhp x 6356
6,800 x 2.0
2.87 x 6356
=
Efficiency Correction Factor = 2 dB
Step 3. Determine dB level for correction. Using
the volume/pressure correction chart on page 104,
determine the dB level for the volume/pressure
correction. This is the 10 Log10 (cfm x PT2 ) value
shown in the formula at the beginning of this page.
At 6,800 cfm and 2.0 in. wg of total pressure the
dB value is 44.
Step 4. dB Correction For Sound Trap Fans. Use
the following corrections for Sound Trap construction:
Sound Trap Correction Factor
Octave Band
1
2
3
4
5
6
dB Reduction
0 -3 -7 -10 -10 -7
77%
B. Calculate the Efficiency Ratio.
i. First, calculate the actual total efficiency
(also displayed on the performance charts)
Actual Total Efficiency
Efficiency Correction Factor
Efficiency Ratio
1 1.05 1.1 1.2 1.4 1.7+
Efficiency Correction (dB) 0
2
4
6
8 10
7
-7
8
-1
Step 5. Finally, total the values found in Steps 1
thru 4 to determine Lw:
Octave Band
+ Step 1
+ Step 2
+ Step 3
+ Step 4
= Lw
X 100%
X 100%
1
2
3
4
5
36 38 43 43 41
2
2
2
2
2
44 44 44 44 44
0 -3 -7 -10 -10
82 81 82 79 77
6
7
8
36 31 27
2
2
2
44 44 44
-7 -7 -1
75 70 72
74.6%
ii. Then calculate the efficiency ratio.
Efficiency Ratio =
Maximum Total Efficiency
Actual Total Efficiency
=
77%
74.6%
= 1.03
Half-Bladed Fans
Half-bladed fans are identified with the letter “H” in the model number, for example VAD-20H14. The rotor has half the
standard number of blades for higher efficiencies at low pressures. This reduced number of blades generates a lower blade
pass frequency and requires a different set of base sound power levels. Base sound data is published for each fan and hub
size combination offered with half-bladed rotors on page 103.
101
®
Direct Drive Base Sound Power Levels
Full-Bladed Rotors
Octave Band
Fan Model
RPM
VAD-18F14
1170
38 40 43 42 38 31 26 22
1770
39 37 42 43 41 35 29 25
VAD-20F14
VAD-24F14
VAD-24F17
VAD-30F14
VAD-30F17
VAD-30F21
VAD-36F14
VAD-36F17
VAD-36F21
VAD-36F26
VAD-42F17
VAD-42F21
1
2
3
4
5
6
7
8
3500
36 39 37 42 43 41 35 29
1170
37 41 43 42 38 32 27 23
1770
38 38 43 43 41 36 30 26
3500
35 38 37 43 43 41 35 30
870
38 43 43 41 35 31 27 23
1170
37 41 43 42 38 33 28 24
1770
36 38 43 43 41 36 31 27
1170
36 39 43 42 38 33 29 26
1770
35 37 42 43 41 35 31 28
3500
32 35 37 42 43 41 35 31
870
38 45 42 41 36 31 26 21
1170
36 43 43 41 38 34 29 24
1770
35 38 45 42 41 37 32 27
870
36 42 42 41 36 32 28 24
1170
35 39 43 41 38 34 30 26
1770
34 36 42 42 40 36 32 28
1170
34 34 44 40 37 32 28 26
1770
32 34 38 42 38 35 30 27
3500
30 33 33 39 42 38 34 30
870
40 46 42 42 39 34 27 20
1170
37 44 43 42 41 37 30 23
1770
34 40 46 42 42 40 34 27
870
37 43 43 42 39 34 29 24
1170
36 40 44 43 41 36 31 26
1770
34 37 43 43 42 39 34 29
870
35 41 44 41 38 33 29 25
1170
34 37 46 43 40 36 31 27
1770
32 35 41 45 41 38 34 29
870
34 39 46 42 37 33 28 25
1170
33 36 46 44 39 35 30 26
1770
31 34 39 46 42 37 33 28
870
37 43 46 45 41 35 30 25
1170
36 40 45 46 43 38 32 27
1770
34 37 43 46 45 41 35 30
870
37 43 45 45 41 36 31 25
1170
35 40 46 45 44 39 33 27
1770
33 37 42 46 44 42 37 31
Max Total
Efficiency
Fan Model
VAD-42F26
66
VAD-48F21
71
VAD-48F26
77
VAD-48F30
73
VAD-54F21
76
VAD-54F26
74
VAD-54F30
74
VAD-60F26
80
VAD-60F30
79
VAD-66F26
78
VAD-66F30
69
VAD-72F26
81
VAD-72F30
79
RPM
Octave Band
1
2
3
4
5
102
7
8
870
36 41 46 44 41 36 31 27
1170
35 38 46 45 42 39 33 29
1770
33 36 41 46 44 41 36 31
870
40 46 47 47 45 40 33 26
1170
38 43 48 47 47 42 36 29
1770
35 40 45 48 47 45 40 34
870
38 43 47 45 43 39 33 27
1170
36 40 47 46 44 41 36 30
1770
34 37 43 47 45 43 39 33
870
36 40 48 45 43 38 32 27
1170
35 38 45 46 44 40 35 30
1770
33 36 40 48 45 43 38 33
690
44 49 48 49 46 40 32 24
870
42 47 48 49 47 42 35 27
1170
39 45 49 48 49 44 38 30
870
39 44 48 47 45 40 34 28
1170
37 41 47 47 46 43 37 31
1770
35 38 44 48 47 45 40 34
870
37 42 48 46 44 39 34 29
1170
36 40 46 47 45 41 37 32
1770
34 37 41 48 46 44 40 35
690
40 46 47 46 42 38 33 28
870
39 44 48 46 44 40 35 30
1170
37 41 47 47 45 42 37 32
690
39 45 48 46 43 38 33 29
870
38 43 48 47 44 40 35 31
1170
36 40 46 47 45 42 37 32
690
40 46 47 46 42 38 33 29
870
39 44 48 46 44 40 35 31
1170
37 41 47 47 45 42 37 33
690
40 45 48 46 43 39 34 30
870
38 43 48 47 44 40 36 32
1170
37 41 46 47 45 42 38 33
690
40 46 48 46 42 38 35 33
870
39 44 48 47 44 40 35 33
1170
37 41 47 48 45 42 37 34
690
41 45 48 45 42 38 34 30
870
39 44 48 47 43 40 36 32
1170
38 42 46 47 44 41 37 33
*See page 101 for direct drive instructions. The AMCA Certified Ratings Seal applies to air performance ratings only.
®
6
Max Total
Efficiency
75
80
77
79
78
75
77
76
77
77
76
79
79
Direct Drive Base Sound Power Levels
Half-Bladed Rotors
Fan Model
VAD-18H14
VAD-20H14
VAD-24H14
VAD-30H14
VAD-36H14
VAD-42H17
VAD-48H21
VAD-54H21
VAD-60H26
VAD-66H26
VAD-72H26
RPM
Octave Band
1
2
3
4
5
6
7
8
1170
43 44 44 43 39 33 30 28
1770
42 44 44 44 42 37 31 29
3500
39 42 44 44 44 42 36 31
1170
44 44 44 43 39 34 30 27
1770
42 45 44 44 42 38 32 29
3500
39 42 45 44 44 42 37 32
870
45 45 44 42 37 32 28 24
1170
44 45 44 43 39 34 29 25
1770
42 45 45 44 42 38 32 28
870
45 45 44 43 38 32 28 24
1170
44 45 44 43 40 34 29 25
1770
42 45 45 44 43 38 32 28
870
45 45 44 43 38 32 27 22
1170
44 45 44 43 40 35 30 25
1770
41 45 45 44 43 39 33 28
870
47 47 45 44 41 35 30 25
1170
45 47 46 45 43 38 32 27
1770
42 47 46 45 44 41 35 30
870
47 48 47 46 43 38 32 27
1170
45 49 47 47 45 41 35 30
1770
43 47 48 47 46 44 39 33
690
48 48 47 45 42 37 32 27
870
47 49 47 46 43 39 33 28
1170
45 49 48 47 45 41 36 31
690
47 48 47 46 44 39 33 28
870
46 49 48 46 44 41 35 30
1170
44 48 48 47 45 43 37 32
690
47 48 48 47 44 39 33 29
870
45 48 48 47 45 41 35 31
1170
44 47 48 48 46 43 37 33
690
47 49 48 47 44 39 33 29
870
45 48 49 47 45 41 35 31
1170
44 47 49 48 46 43 37 33
Max Total
Efficiency
58
71
75
75
81
78
81
76
76
74
76
*See page 101 for direct drive instructions. The AMCA Certified Ratings Seal applies to air performance ratings only.
103
®
Volume/Pressure Correction Chart
20
70
10
9
8
7
6
65
5
60
4
55
Fan Total Pressure (in. wg)
3
50
2
45
40
1
.9
.8
.7
.6
35
.5
30
.4
25
.3
20
.2
15
.1
1
2
3
4 5 6 7 8 10
20
CFM x 1,000
®
104
30 40 50 60 80 100
200
Specifications
Belt Drive
Vane axial fans shall be belt driven, Arrangement 9, with the motor attached to the exterior of the fan housing on
an adjustable base. Turned, precision ground and polished steel shafts shall be sized so the first critical speed is
at least 25% over the maximum operating speed.
Bearings shall be grease lubricated, air handling quality ball or roller type selected for a minimum L10 life of
40,000 hours (L50 life in excess of 200,000 hours) at maximum operating speed.
Rotor blades and hub shall be heat treated cast aluminum alloy A356-T6 with blade bases and hub sockets
precision machined. Blades shall be attached to the hub with steel studs and self-locking nuts. Hub shall be
positively secured with a steel taper lock bushing keyed to the fan shaft. Blades shall be manually adjustable
within horsepower limitations. A blade tip angle scale shall be machined into the base of the master blade and
indexed to the hub. All blades shall be adjustable to align with the master blade pitch setting.
Propeller shall be dynamically balanced to Balance Quality Grade G6.3 per ANSI S2.19. Each assembled fan shall
be test run at the factory at the specified fan RPM. Vibration signatures shall be taken on each fan bearing in the
horizontal, vertical and axial plane directions. The maximum allowable fan vibration level shall be 0.08 in/sec
peak velocity, filter in, at the fan RPM when the fan is rigidly mounted.
Fan housing shall be fabricated from heavy gauge steel with prepunched flanges at both ends. A minimum of
seven heavy gauge straightening vanes shall be welded to the fan housing downstream from the rotor. (For
optional Sound Trap construction insert the last paragraph). Vane axial fans shall be model VAB or VABS (select
one) as manufactured by Greenheck Fan Corporation of Schofield, Wisconsin, and shall be supplied as shown
on the plans and in the fan schedule.
Direct Drive
Vane axial fans shall be direct driven, Arrangement 4, with the fan rotor secured to the motor shaft. Motors shall
be located downstream from the rotor for maximum cooling.
Rotor blades and hub shall be heat treated cast aluminum alloy A356-T6 with blade bases and hub sockets
precision machined. Blades shall be attached to the hub with steel studs and self-locking nuts. Hub shall be
positively secured with a steel taper lock bushing keyed to the motor shaft. Blades shall be manually adjustable
within horsepower limitations. A blade tip angle scale shall be machined into the base of the master blade and
indexed to the hub. All blades shall be adjustable to align with the master blade pitch setting.
Propellers shall be dynamically balanced to Balance Quality Grade G6.3 per ANSI S2.19. Each assembled fan
shall be test run at the factory at the specified fan RPM. Vibration signatures shall be taken in the horizontal
plane direction. The maximum allowable fan vibration level shall be 0.08 in/sec peak velocity, filter in, at the fan
RPM when the fan is rigidly mounted.
Fan housing shall be fabricated from heavy gauge steel with prepunched flanges at both ends. A minimum of
seven heavy gauge straightening vanes shall be welded to the fan housing downstream from the rotor. (For
optional Sound Trap construction insert paragraph below here). Vane axial fans shall be model VAD or VADS (select one) as manufactured by Greenheck Fan Corporation of Schofield, Wisconsin, and shall be supplied as
shown on the plans and in the fan schedule.
Sound Trap Construction
When specifying optional Sound Trap construction add the following in the locations noted above: Fan
construction shall be double-walled with two inches of sound absorbing material between the walls. The inner
wall shall be constructed of perforated steel. Air performance ratings shall be equal to equivalent size fans with a
single wall housing.
105
®
Our Warranty
Greenheck warrants this equipment to be free from defects in material and workmanship for a period of
one year from the shipment date. Any units or parts which prove defective during the warranty period will
be replaced at our option when returned to our factory, transportation prepaid. Motors are warranted by the
motor manufacturer for a period of one year. Should motors furnished by Greenheck prove defective during
this period, they should be returned to the nearest authorized motor service station. Greenheck will not be
responsible for any removal or installation costs.
As a result of our commitment to continuous improvement, Greenheck reserves the right to change
specifications without notice.
Prepared to Support
Green Building Efforts
Greenheck P.O. Box 410 • Schofield, WI 54476-0410 • Phone (715) 359-6171 • greenheck.com
Copyright © 2011 Greenheck Fan Corp. • 00.CVI.NB004 R3 8-2011
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