Acme Engineering 8118 User Manual

AIRFOIL HIGH EFFICIENCY

CENTRIFUGAL FANS

8100

SERIES

ACME ENGINEERING & MANUFACTURING CORP.

MUSKOGEE, OKLAHOMA

Licensed to bear the AMCA seal for Sound and Air Performance

8100 SERIES

DESIGN FEATURES

GENERAL

The 8100 Series Airfoil Centrifugal Fans utilize the latest design techniques to produce a quiet, highly efficient air mover. Aerodynamically designed airfoil blades and air passages allow more air to be handled with less horsepower and at a lower sound level. This fan has been designed for applications where low operating cost and quiet operation are prime considerations.

EFFICIENCY

Most important is sustained high efficiency over the range of optimum selection. The ultimate measure of fan performance is operating efficiency. High efficiency means low operating costs throughout the life of the equipment. Normal selection is slightly to the right of peak efficiency, thereby assuring adequate pressure reserve.

HORSEPOWER

The horsepower curve is self-limiting and reaches a maximum in the normal selection range at a given speed. Motors selected using this self-limiting power as a basis will not overload as long as the speed is not changed.

THESE ACROSS THE BOARD AIRFOIL ADVANTAGES…

Steeply Rising Pressure Curve. . .Ensures

minimum variation in volume with change in system pressure and provides a pressure reserve above the normal selection range.

Low Operating Cost. . .Maximum peak and

operating efficiencies, with minimum power requirements.

Quieter Operation. . .Aerodynamically correct

airflow provided by airfoil blading permits quiet operation, so important whenever air is moved.

Full Value. . .Superior design, workmanship,

application and service. Wide Range of Application. . .Fans are available

to meet many commercial and industrial requirements in both general purpose and heavy duty construction.

ADD UP TO

Real Savings...low initial cost...minimum

operating expense...minimum maintenance expense.

QUIET OPERATION

Precise orientation of wheel blades, combined with careful aerodynamic design of wheel and casing, decreases air turbulence and increases pressure conversion efficiency. The result is a quieter operating fan.

AIRFOIL BLADING

Provides full streamline airflow for greater operating efficiency and perceptibly quieter performance.

8100 Series A.F.

Acme Engineering and Manufacturing Corporation, Industrial Products Division, certifies that the 8100 Series fans shown herein are licensed to bear the AMCA Seal. The ratings shown are based on tests & procedures performed in accordance with AMCA Publication 211 and AMCA Publication 311 and comply with the requirements of the AMCA Certified Ratings Program. For Sound Performance Data refer to Sound Bulletin S92.

General Purpose...Classes I and II for medium pressures

U.L. 762 Listed

Consult your Acme representative for availability.

TYPICAL CONSTRUCTION FEATURES GENERAL PURPOSE FAN

8100 SERIES

BEARINGS

Self-aligning, grease lubricated, anti-friction bearings are standard. Minimum starting friction, simple maintenance and long trouble-free life expectancy make them ideal for fan service. In general, ball bearings are used for the higher speeds and roller bearings for heavy loads and at slower speed.

SPUN INLETS

Deep streamlined inlets reduce incoming air turbulence and losses to a minimum. Overlapping of the inlet with the contoured wheel rims allows air to move into the wheel without obstruction.

REINFORCING BRACES

Angle bracing, which essentially forms a beam section, eliminates the possibility of casing pulsation and vibration. In certain fan sizes, the bracing angles are used to permit simple connection of square or rectangular ducts directly to the fan. This eliminates the usual duct transition piece.

HOUSING DESIGN

The spiral shaped housing is designed to receive the air leaving the wheel and reduce its velocity with a minimum of turbulence, thereby efficiently converting the velocity pressure to static pressure for increased performance.

CUTOFF

The discharge cutoff is specially shaped for maximum efficiency and strength.

WHEEL CONSTRUCTION

Shock-free flow at the leading edge of the blades, plus streamlined flow over the blade surfaces, increases wheel efficiency and quietness.

BASE

The base is fabricated from steel angles for maximum support and stiffness.

HEAVY BEARING SUPPORT

Heavy steel bearing supports maintain accurate alignment, prevent bearing distortion and offer a minimum of resistance to airflow.

Wheels have die-formed airfoil blades welded to backplate and rims to provide a particularly rigid assembly.

All wheels are statically and dynamically balanced to ensure smooth operation.

SHAFTS

Shafts are fabricated from medium carbon steel (larger fans utilize forged shafts) and all are carefully turned, ground and polished to size. All shafts are correctly designed to give safe deflection and operate well below the first critical speeds.

8100 SERIES

ARRANGEMENTS

SINGLE WIDTH (SWSI)

Arrangement 3. . .Single width fans are belt driven with

bearings supported by heavy steel members on each side of the fan housing. This arrangement is generally used for ventilation, air conditioning and clean ambient air applications, since the bearings are located in the airstream. Available in sizes 8118 through 8154 for Classes I and II.

Arrangement 9. . .Similar in construction and application to Arrangement 1, except the fan assembly has provision for mounting the motor on the side of the bearing support ped estal. Mounting the motor integral with the fan provides a package which uses a minimum of floor area and is easily movable. Available in all sizes, Classes I and II. Limited by maximum motor frame.

ARR. 9

Arrangement 10. . .Similar to Arrangement 9, except that the motor is mounted within the bearing support base. This package fan uses a minimum of floor space, protects the motor and is available with a weather cover or belt guard. Furnished in Classes I and II, sizes 8118 through 8154.

ARR. 3

Arrangement 4. . .Direct driven has fan wheel overhung on motor shaft and motor mounted on a pedestal. Available in Classes I and II in sizes 8118 through 8137 only.

ARR. 10

DOUBLE WIDTH (DWDI)

Arrangement 3. . .Belt

driven with both bearings mounted in the inlets. Similar in construction and application to Arrangement 3, SWSI. Double width fans deliver a maximum volume of air with a minimum amount of space required. Available in sizes 8118 through 8154, Classes I and II.

ARR. 4

General purpose, Arrangement 3, Double Width, Double Inlet fan.

8100 SERIES

FAN CONSTRUCTION

HOUSING

All SWSI and DWDI housings are fabricated from rigidly braced steel and provided with streamlined spun inlets which guide the air into the wheel with a minimum of interference.

Either fixed or rotatable discharge housings are available for sizes 8118 through 8137, both single and double width. Fixed discharge housings are standard for sizes 8140 and larger, and are continuously welded.

Housings are fabricated using beaded or welded types of construction depending on fan size or class.

WHEELS

The rotating elements of a fan are most important and must be designed and fabricated to provide the highest practical aerodynamic performance with smooth vibration-free operation. This complete line of airfoil wheels features:

Shock-free airflow, minimizing turbulence and

sound. Hubs designed to guide the air into the blades.

Wheels statically and dynamically balanced.

8100 DWDI AND SWSI AIRFOIL WHEELS

Welding of the double thickness airfoil blades to the wheel back or center plate and rim(s) provides the necessary strength and rigidity for all classes of construction. Continuous welding of the trailing edge of the blades, not only minimizes trailing eddies which contribute to the sound output of the fan, but helps protect the hollow blading from internal corrosion.

INTENDED SERVICE

In general, fans are built to suit the service for which they are intended to perform. Variations in rotation, discharge, class of construction, arrangements, bearing type and location are but a few of the many different options that are available.

PROTECTIVE COATINGS

Standard finish for the 8100 Series fans consists of charcoal baked enamel with U.V. inhibitors applied inside and out.

SPARK RESISTANT FANS

Application of fans on systems where hazardous, explosive or flammable conditions exist requires careful attention on the part of the designer, manufacturer and installer. The 8100 Series fans are available with spark resistant construction as covered by the following table. Fans with this construction are only available in arrangements 3, 4, 9 and 10. Aluminum wheels for Type A or B construction are available for Class I and II.

Fans must be installed with all fan parts electrically grounded.

8100 DWDI

Access Doors

Extended Lube Fittings

Flanged Inlet & Outlet

Heat Shield

Inlet & Outlet Screens

Inlet Boxes

Motor & V-Belt Drives

Outlet Dampers

8100 SWSI

Shaft & Bearing Guards

Shaft Seals

Spark Resistant Const.

Special Nameplates

Std. & Flanged Drains

Unitary Subbases

V-Belt Drive Guards

Weather Covers

OPTIONAL ACCESSORIES

Access

Doors

Vibration Equipment

Screens

Shaft Seal

Outlet Dampers

Drain

Drive Guards

8100 SERIES

Table of Standard Classifications for Spark Resistant Construction.

Type A…

Type B…

Type C…

Notes: 1. Bearings shallnot be placed in the air orgas stream.

All partsof the fan in contact with theair or gas being handled shall bemade of non-ferrous material. Steps must also be taken toassure that the wheel, bearings, and shaftare adequately attachedand/or restrained to prevent a lateral or axial shiftin these components.

The fanshall have a non-ferrous wheel and non-ferrousring about theopening through which the shaft passes. Ferrous hubs, shaftsand hardware are allowed if construction issuch that ashift of the wheel or shaft willnot permit two ferrous parts ofthe fan to rub or strike. Steps must also be take n to assure thatthe wheel, bearings, and shaft are adequately attached and/orrestrained to prevent a lateral or axialshift in these components.

The fanshall be so constructed that a shiftof the wheel or shaft willnot permit two ferrous parts of thefan to rub or strike.

2. The usershall electrically ground all fan parts.

3. Explosion proof motors and static resistant belts should

be used.

Refer to AMCA Standard 99-0401-86 for more detailed information.

PHYSICAL DATA

AMCA Standard 99-2408-69 defines three performance Classes, I through II.

Housings

Class I and II Fans

Sizes 8118 through 8137 SWSI or DWDI, tack welded, beaded seams. Continuous welding optional.

Sizes 8140 and larger, SWSI or DWDI, continuous welded seams.

Inlets

SWSI fans size 18-37, Class I and II are furnished with circular Slip Joint Inlets as standard (Arr. 3, 4, 9 and 10). The above applies to all fan Arrangements, except 3, which for Class I and II, sizes 12-37 have a round flange punched inlet as standard for both SW and DW. For Arr. 3, 4, and 9, Class I and II, SW or DW, Sizes 40-54, the standard inlet is a square flange open type unpunched.

Outlets

Slip joint outlets are standard for Class I and II fans. If a flanged type outlet damper is specified, a fan outlet flange is also required.

Wheels

Class I, and II Fans

All SWSI or DWDI wheels are fabricated with die-formed blades.

Blades

Wheel blades are welded to the rim, center or backplate.

Hubs

Hubs are fabricated from steel bar and plate or cast iron.

Shafts

Turned, ground and polished of SAE 1045 medium carbon steel, designed to operate well below and away from the first critical speeds.

Shaft Seals

Plate type sealant, backed by a steel retaining plate secured to fan housing side around shaft opening.

Bearings

Class I and II Fans

All sizes and arrangements, SWSI or DWDI, are supplied with pillow block type, ball or roller bearings as standard.

With proper belt tension, Acme bearings are rated at a L-10 life of 40,000 hours. However, certain high speed and high horsepower configurations may lead to reduced bearing life.

Outlet Dampers

Class I and II Fans

Dampers for all sizes and arrangements, SWSI or DWDI, have independent frames and slip joint type duct connection. They are multi-louver type, interconnected and fabricated with bearings. A hand lever and locking quadrant are furnished for manual operation and a stub shaft for automatic control.

TYPICAL SPECIFICATIONS

FURNISH AND INSTALL WHERE SHOWN ON THE PLANS, 8100 SERIES, CENTRIFUGAL A.F. FANS.

PERFORMANCE: Fans shall be licensed to bear the

AMCA Sound and Air Performance Seal with performance ratings based on tests conducted in accordance with AMCA Publication 211 and AMCA Publication 311, and comply with the requirements of the AMCA Certified Ratings Program. Fans shall have a sharply rising pressure characteristic which shall extend throughout the operating range and continue to rise well beyond the efficiency peak to insure quiet, stable operation under most conditions. The horsepower characteristic shall be truly non-overloading and shall peak within the normal selection range.

DESIGN AND CONSTRUCTION: Housings shall be of scroll centrifugal type, rigidly braced and reinforced to help prevent vibration or pulsation. Wheel diameters and outlet areas shall be in accordance with the Standard Sizes adopted by AMCA for non-overloading fans. Inlets shall be fully streamlined.

WHEELS: Fan wheels shall be furnished with die-formed airfoil blades for maximum efficiency and quiet operation. Airfoil blades shall be continuously welded to both backplate, rim, and along the back edge of the blade to help prevent internal corrosion due to moisture entry.

ACCESSORIES: Fans shall be furnished with accessories as shown in the schedules.

8100 SERIES

SELECTION AND APPLICATION

Efficient fan selection minimizes internal energy losses and sound generation. Acoustical laboratory tests confirm that low sound output occurs at high operating efficiency. The figures with a table are near peak efficiency. Fan selections near the peak efficiency provide low sound output consistent with adequate pressure reserve and self-limiting horsepower - another advantage of carefully coordinated design.

Selection for relatively quiet operation...Selection at higher efficiencies minimizes sound generation. For lower sound output, together with other benefits of low power consumption and operating cost throughout fan life, select fans near Normal Selection Curve. When higher sound levels are acceptable, together with smaller fans and higher operating costs selection can be made at lower efficiencies. Under these circumstances, sound attenuation may be desirable.

SELECTION CONSIDERATIONS

Selection of the proper fan for a given application involves not only the operating characteristics of the fan, but a careful analysis of first cost versus operating cost, as well as expected life, quietness of operation, location of equipment and any other job limitations. Generally speaking, permanent types of fan installations such as public buildings, schools, or hospitals are expected to operate for many years, during which time operating and maintenance costs can be substantial factors. Quite often an analysis of first cost versus operating costs for the life expectancy of the fan can justify a higher initial investment using a larger fan with higher efficiency. Industrial applications, on the other hand, have indeterminate life expectancies and often permit smaller fans to be selected at lower efficiencies. Each installation should be thoroughly analyzed in its design stage to insure that the ultimate objective is accomplished.

ACME’S FAN...YOUR SYSTEM

Fan selections are based on static pressure capability when handling a given volume of air. The static pressure is calculated for each system by following certain accepted industry practices. This calculation of static pressure is at best an inexact science with the error often compounded by the addition of safety factors.

⎤ in each pressure column of the performance

Recommended Outlet Velocities

For Quiet Operation

If the system pressure requirements for a given volume of flow is known, the system characteristic curve is a parabola and can be predicted mathematically. Such a system curve is illustrated to the left.

A fan at a given RPM has a characteristic pressure-volume curve from wide open to blocked tight. Such a fan curve is illustrated to the left.

If the curves are superimposed as illustrated to the right, the intersection is the only point on the system at which the fan can operate. If this balance point does not satisfy the system pressure and volume requirements, the system requirements or fan speed must be adjusted until the required operating characteristics are obtained.

In the selection of a fan to meet calculated or specified pressure-volume conditions, it is important to apply, where possible, an adjustable fan drive with sufficient variation to compensate for variances between actual and calculated operating conditions.

FAN STARTING REQUIREMENTS

A fan is an energy converter. Electrical energy rotates the fan wheel through a driving motor and increases the static pressure (potential energy) of the air handled by the fan in order to overcome resistance to air flow offered by the duct system. The wheel also increases the velocity pressure (kinetic energy) of the air which is the energy required to maintain the air in motion. The driving motor must be capable of starting the fan from rest and accelerating it to operating speed, with a minimum of disturbance to the electrical system. The information given below is useful in understanding the motor problems that may arise.

To start and accelerate a fan to operating speed it is necessary to:

1. Overcome bearing resistance. This resistance can

vary with the type of bearing used. It is low for anti-friction types and relatively high for sleeve types.

2. Accelerate the inertia of the fan wheel and shaft.

This inertia is generally designated as the moment of inertia or WR accelerate it together with the inertia of the drive sheaves or coupling. The moment of inertia for Class III and IV fans will be greater than Class I and II fans, because heavier wheels and shafts are used.

3. Provide energy to the fan wheel as it begins to

deliver air into the duct system. The horsepower

required varies with the cube of the fan speed ratio. It is insignificant at low speeds, but increases rapidly as the fan wheel comes up to operating speed.

At lower static pressures it is possible to select motors that are too small. The fan operating brake horsepower could be significantly less than the WR fan to the point of operation. If the motor was sized to the required operating for the fan WR possible to overheat the motor and overload the electrical system. To assure the proper motor size you should refer to the appropriate Application Data Booklet for this product.

. The motor must provide energy to

necessary to accelerate the

brake horsepower without consideration

, drive loss, and bearing loss, then it is very

8100 SERIES

SELECTION AND APPLICATION

The minimum motor sizes indicated in the fan performance data are based upon the use of standard, open dripproof or enclosed, normal torque motors for across-the-line starting. The use of other motors for reduced voltage starting, high or low starting torques, designed with high inertia capabilities, etc., should be checked to be sure they will start and accelerate the fan without overheating the motor or overloading the electrical circuit. The motors listed in the performance data have been selected based on one start per day and operation in an ambient temperature not exceeding 104°F (40°C). More frequent starting or operation in higher temperatures will probably require a motor larger than the minimum sizes listed.

Motor recommendations for fan sizes 8137 through 8154 are based on the use of four pole, 1800 RPM motors. Under certain operating conditions it may be possible to use motors smaller than those listed in the performance tables. The selection of smaller motors should be reviewed with the motor supplier.

In general, smaller fans do not present a starting problem. Hence, when a fractional horsepower is used, its starting and accelerating characteristics should be carefully checked.

A directly driven fan requires a larger motor to bring it up to its operating speed than a belt driven unit. The required inertia capability of the motor to start a fan and accelerate it, varies as the square of the fan-motor speed ratio. Belt driven arrangements are advantageous for the motor since a relatively low motor inertia capability is required due to the effect of the square of the fan-motor speed ratio. However, a fan directly connected to a motor does not have this speed difference and the mechanical advantage of the drive ratio is nonexistent. The driving motor must, of necessity, be larger than that indicated in the performance tables and should be reviewed with the motor supplier.

Whenever outlet dampers are used, the starting load and motor heating are reduced, if such devices are kept closed until after the fan has accelerated to operating speed.

CORRECTION OF FAN PERFORMANCE FOR OTHER THAN STANDARD AIR CONDITIONS

Air volumes to be handled by the fan must be calculated to satisfy the application. A fan operating on a given system at a given speed is a constant volume machine. The density of air entering the fan (affected by temperature and/or altitude) can vary, but the air volume delivered will remain unchanged. The system resistance, the fan pressure capability and brake horsepower will vary directly with the air density.

In general practice the design system resistance is calculated in the usual manner using standard air density and the fan pressure requirements are determined for “standard” conditions. This is sometimes known as the equivalent pressure (SP in the normal manner using the equivalent pressure (SP

). Select the fan from the catalog

noting the fan RPM and BHP. As indicated by fan law #2, the design air volume and selected fan speed will remain unchanged, but the fan pressure and horsepower will vary with the air density. The system resistance will also vary with the air density.

The design of many systems involves the calculation and specification of air quantities by weight as in product drying or combustion. Before a fan can be selected, the air quantity must be converted to an air volume based upon actual air density entering the fan inlet. The system resistance equivalent static pressure (SP

) must be

determined using the air volume. The fan selection is now made from the catalog using the calculated air volume and the equivalent static pressure (SP

). Fan brake

horsepower corrections are made for air density variations as indicated under Fan Law #2C.

For ease in calculations the table to follow contains air density ratios for temperatures from -20°Fto800°F (-29°C to 427°C) and barometric pressures from 29.92" to 20.58" Hg (760 mm to 536 mm Hg).

FAN LAWS

Two basic fan laws relate performance variables for any fan of a given design (such as the Series 8100). An understanding of these relationships is necessary to select fans when they are handling air or gas which is different than standard or when fan performance adjustments must be made on existing systems.

Both of these laws apply to a given unchanged duct system.

FAN LAW #1

SPEED VARIABLE - CONSTANT AIR DENSITY A. Volume (CFM)...Varies directly as the ratio of the

speeds.

⎛

⎞

RPM

CFM CFM X

⎜ ⎝

RPM

⎟ ⎠

B. Pressure (SP or TP)...Varies directly as the

square of the speed ratio.

Pressure Pressure X

⎛ ⎜

⎝

RPM

⎞

⎟ ⎠

C. Power...Varies directly as the cube of the speed

ratio.

BHP BHP X

⎛ ⎜

⎝

RPM

⎞

⎟ ⎠

FAN LAW #2

AIR DENSITY VARIABLE - CONSTANT SPEED A. Volume (CFM)...Remains unchanged

B. Pressure (SP or TP)...Varies directly as the ratio

of the air densities.

Pressure Pressure X

⎛

Air Density

⎜ ⎝

Air Density

⎞

⎟ ⎠

C. Power...Varies directly as the ratio of the air

densities.

BHP BHP X

⎛

Air Density

⎜ ⎝

Air Density

⎞

⎟ ⎠

8100 SERIES

SET SCREW TIGHTENING SCHEDULE

1. Before initial operation of thefan, tighten set screws according to the procedure outlined below.

2. After 500 operating hours orthree months, whichever comes first, tighten set screws to the full recommended torque.

3. At least once a year,tighten set screws to the full recommended torque.

PROCEDURE FOR TIGHTENING SET SCREWS IN

BEARINGS AND HUBS

One Set Screw Application Using a torque wrench, tighten the set screw to the torque recommended in Table 1.

Two Set Screw Application

1. Using a torque wrench, tightenone set screw to half of the torque recommended in Table 1.

2. Tighten the second set screwto the full recommended torque.

3. Tighten the first set screwto the full recommended torque.

VARIABLE FREQUENCY DRIVES AND MOTORS

There are occasions when a Variable Frequency Drive (VFD) will cause poor motor performance and possible damage. To avoid these problems, the Company recommends the following:

1. Select compatible motor and VFDinverter; if possible, the motor and the innverter should be from the same manufacturer or at least the inverter selected should be recommended by the motor manufacturer.

2. A motor shaft grounding systemshould be used to prevent motor bearing damage from eddy currents.

NOTE: The Company will not honor motor warranty claims if the customer fails to follow these recommendations.

Table 1. Recommended Tightening Torque

for Set Screws

Set Screw Diameter Torque (in-lbs)

#10 35

1/4 80

5/16 126

3/8 240

7/16 384

1/2 744

9/16 1080

5/8 1500 3/4 2580 7/8 3600

1 5400

DESIGNATION FOR DIRECTION OF ROTATION AND DISCHARGE

Direction of Rotation is determined from the drive side for either single or double width, or single or double inlet fans. (The driving side of a single inlet fan is considered to be the side opposite the inlet, regardless of the actual location of the

Reprinted from AMCA Publication 99-86 Standards Handbook, with the express written permission from the Air Movement and Control Association International, Inc., 30 West University Drive, Arlington Heights, Illinois 60004-1893, U.S.A.

drive.) For fan inverted for ceiling suspension, the Direction of Rotation and Discharge is determined when the fan is resting on the floor.

8100 SERIES

SINGLE WIDTH

SIZE 8118

"SP

Wheel Diameter Wheel Circumference 4.78 feet 1.457 m Inlet Diameter/Area Outlet Size/Area Tip Speed 4.78 x RPM ft./minute 1.457 x RPM m/minute Maximum BHP .43 x (RPM 1000)

VOL

OUT

CFM

VEL

1144 600 1335 700 598 0.09 659 0.12 715 0.15 768 0.18 1526 800 649 0.11 704 0.14 758 0.18 807 0.22 852 0.25 900 0.29 1716 900 701 0.13 754 0.17 802 0.21 850 0.25 894 0.29 935 0.33 976 0.38 1057 0.46 1907 1000 755 0.16 805 0.21 851 0.25 894 0.29 937 0.34 977 0.38 1015 0.43 1089 0.52 1163 0.61 2098 1100 810 0.20 858 0.24 902 0.29 942 0.34 981 0.39 1020 0.44 1058 0.48 1127 0.59 1195 0.69 1262 0.79 2288 1200 865 0.23 911 0.29 953 0.34 993 0.39 1029 0.44 1065 0.49 1101 0.55 1170 0.66 1233 0.77 1294 0.88 2479 1300 922 0.28 965 0.33 1006 0.39 1044 0.45 1080 0.50 1114 0.56 1146 0.62 1213 0.73 1275 0.85 1333 0.97 2670 1400 979 0.33 1021 0.39 1060 0.45 1097 0.51 1131 0.57 1164 0.63 1196 0.69 1257 0.81 1318 0.94 1375 1.07 2861 1500 1036 0.39 1077 0.45 1114 0.51 1150 0.58 1183 0.65 1215 0.71 1246 0.77 1304 0.90 1362 1.04 1418 1.17 3051 1600 1095 0.45 1133 0.52 1169 0.58 1204 0.65 1236 0.72 1268 0.79 1297 0.86 1354 1.00 1407 1.14 1462 1.28 3242 1700 1154 0.52 1190 0.59 1225 0.66 1258 0.74 1290 0.81 1320 0.89 1349 0.96 1405 1.10 1456 1.25 1506 1.40 3433 1800 1213 0.60 1248 0.68 1281 0.75 1313 0.83 1344 0.90 1374 0.98 1402 1.06 1456 1.22 1507 1.37 1555 1.53 3623 1900 1273 0.69 1306 0.77 1338 0.85 1369 0.93 1399 1.01 1428 1.09 1455 1.17 1508 1.34 1558 1.50 1605 1.66 3814 2000 1333 0.78 1364 0.87 1395 0.95 1425 1.04 1454 1.12 1482 1.21 1509 1.29 1561 1.47 1609 1.64 1656 1.81 4195 2200 1454 1.00 1483 1.10 1511 1.19 1539 1.28 1566 1.37 1593 1.47 1618 1.56 1667 1.75 1714 1.94 1759 2.14 4577 2400 1576 1.26 1603 1.37 1629 1.47 1655 1.57 1680 1.67 1705 1.77 1729 1.87 1776 2.07 1821 2.28 1864 2.49 4958 2600 1698 1.57 1723 1.68 1748 1.79 1771 1.90 1796 2.01 1819 2.12 1842 2.23 1887 2.44 1930 2.67 1971 2.89 5340 2800 1822 1.92 1845 2.04 1868 2.16 1890 2.28 1912 2.40 1935 2.52 1956 2.63 1999 2.86 2040 3.10 2079 3.34 5721 3000 1945 2.32 1967 2.45 1989 2.58 2010 2.71 2030 2.84 2051 2.97 2072 3.09 2112 3.34 2151 3.59 2189 3.84 6102 3200 2069 2.78 2090 2.92 2110 3.05 2130 3.19 2150 3.33 2169 3.47 2188 3.60 2227 3.87 2264 4.13 2301 4.40 6484 3400 2193 3.30 2213 3.44 2232 3.59 2251 3.73 2270 3.88 2288 4.03 2306 4.18 2343 4.46 2379 4.74 2413 5.02 6865 3600 2318 3.88 2336 4.03 2354 4.18 2372 4.34 2390 4.49 2408 4.65 2425 4.80 2459 5.11 2494 5.40 2527 5.70 7247 3800 2442 4.53 2460 4.69 2477 4.85 2494 5.01 2511 5.17 2528 5.33 2545 5.50 2577 5.83 2610 6.14 2642 6.45

RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP

•551 •0.07 •617 •0.10 •679 •0.12 •736 •0.15

SINGLE INLET

inches 464 mm

inches dia./2.18 sq. ft. 513 mm/.2025 m

inches I.D./1.90 sq. ft. 484 x 362 mm/.1765 m

BHP .3207 x (RPM 1000)3kW

"SP

•820 •0.21 •868 •0.25

"SP

MAXIMUM CLASS OPERATING RPM

FAN TEMPERATURE

SIZE 8118 -20° to 150°F -29° to66°C

CLASS I 2393 CLASS II 3122

"SP

•944 •0.33 •1028 •0.41

"SP

•1131 •0.54

•1230 •0.71

"SP

VOL

OUT

CFM

VEL

2479 1300 1389 1.09 1503 1.33 2670 1400 1429 1.20 1535 1.46 1638 1.71 2861 1500 1471 1.31 1570 1.59 1670 1.86 1765 2.14 3051 1600 1514 1.42 1612 1.72 1702 2.02 1797 2.31 1886 2.61 3242 1700 1558 1.55 1654 1.86 1743 2.17 1829 2.49 1917 2.80 2001 3.11 3433 1800 1602 1.69 1697 2.01 1785 2.33 1867 2.67 1949 3.01 2032 3.33 2111 3.66 2186 4.00 3623 1900 1650 1.83 1741 2.16 1828 2.51 1909 2.86 1986 3.21 2064 3.56 2142 3.91 2217 4.26 2289 4.61 3814 2000 1700 1.98 1785 2.33 1871 2.69 1951 3.05 2027 3.42 2099 3.80 2174 4.16 2249 4.53 2320 4.89 2388 5.26 4195 2200 1801 2.32 1882 2.70 1959 3.09 2038 3.47 2112 3.87 2183 4.27 2250 4.68 2315 5.10 2384 5.50 2452 5.90 4577 2400 1905 2.70 1983 3.11 2056 3.52 2126 3.95 2199 4.37 2268 4.79 2335 5.23 2398 5.67 2459 6.12 2518 6.57 4958 2600 2010 3.12 2086 3.57 2156 4.01 2224 4.46 2288 4.92 2355 5.37 2421 5.83 2483 6.29 2543 6.77 2602 7.24 5340 2800 2117 3.58 2190 4.07 2259 4.55 2324 5.03 2387 5.51 2446 6.00 2508 6.49 2570 6.98 2629 7.48 2687 7.98 5721 3000 2226 4.10 2296 4.62 2363 5.15 2427 5.65 2487 6.16 2546 6.67 2602 7.20 2658 7.72 2716 8.25 2773 8.77 6102 3200 2336 4.67 2404 5.22 2469 5.78 2531 6.34 2590 6.87 2647 7.42 2701 7.96 2754 8.52 2806 9.08 2861 9.63 6484 3400 2448 5.30 2513 5.88 2576 6.46 2636 7.06 2694 7.66 2749 8.22 2802 8.80 2854 9.38 2905 9.96 2954 10.56 6865 3600 2560 6.00 2623 6.60 2684 7.22 2742 7.84 2799 8.48 2853 9.10 2905 9.70 2956 10.31 3005 10.92 3053 11.54 7247 3800 2674 6.77 2735 7.40 2794 8.04 2850 8.69 2905 9.35 2958 10.02 3009 10.68 3058 11.31 3106 11.95 7628 4000 2788 7.61 2847 8.27 2904 8.94 2959 9.62 3012 10.30 3064 11.00 3114 11.70 8009 4200 2903 8.52 2961 9.21 3016 9.91 3069 10.61 3121 11.33 8391 4400 3019 9.51 3075 10.23

VOL

OUT

CFM

VEL

4195 2200 2517 6.30 •2642 •7.11 •2759 •7.93 4577 2400 2581 7.01 2705 7.88 2822 8.76 •2932 •9.65 •3040 •10.58 4958 2600 2658 7.73 2769 8.70 2885 9.64 2995 10.58 3100 11.54 5340 2800 2742 8.49 2849 9.52 2949 10.57 3058 11.58 5721 3000 2828 9.31 2933 10.39 3032 11.49 6102 3200 2915 10.19 3018 11.32 3116 12.48 6484 3400 3003 11.15 3105 12.33 6865 3600 3099 12.16

RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP

"SP

RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP

"SP

•1607 •1.57

"SP

•1734 •1.98

"SP

•1854 •2.42

"SP

•1969 •2.90 2053 3.24

"SP

•2079 •3.43 •2155 •3.75

"SP

•2257 •4.34

"SP

•2357 •4.97

"SP

• Approximate Max. Static Efficiency and Quietest Selection. CL. I CL. II

The standard AMCA class range is shown by the shaded areas. Standard carbonsteel fans may beused up to theMaximum Design RPM aslisted above for eachfan class. For minimum motor size required see “Fan Starting Requirements,” page 7.

Performance certified is for Installation Type B: Free Inlet, Ducted Outlet. Power rating (BHP) does not include transmission losses. Performance ratings do not include the effects of appurtenances (accessories). All capacities listed above are based on standard Air Density of 0.075 Lbs./Cu. Ft. at 70°F & 0 Ft. elevation (1.2 kg/m3at 21.1°C&0m).

8100 SERIES

MAXIMUM CLASS OPERATING RPM

FAN TEMPERATURE

SIZE 8120 -20° to 150°F -29° to66°C

CLASS I 2183 CLASS II 2848

"SP

VOL

OUT

CFM

VEL

1392 600 1624 700 550 0.11 605 0.14 656 0.18 704 0.22 1856 800 597 0.13 647 0.17 696 0.22 740 0.26 781 0.31 824 0.35 865 0.40 2088 900 646 0.16 693 0.21 736 0.26 780 0.31 820 0.36 858 0.41 894 0.46 968 0.56 2320 1000 695 0.20 741 0.25 782 0.30 821 0.36 860 0.41 897 0.47 931 0.52 998 0.64 1065 0.75 2552 1100 746 0.24 790 0.30 829 0.36 866 0.41 901 0.47 937 0.53 971 0.59 1034 0.72 1094 0.84 1156 0.96 2784 1200 797 0.29 839 0.35 877 0.42 913 0.48 946 0.54 978 0.61 1011 0.67 1074 0.80 1131 0.94 1185 1.07 3016 1300 850 0.34 889 0.41 926 0.48 961 0.55 993 0.62 1024 0.68 1053 0.75 1114 0.89 1170 1.04 1223 1.18 3248 1400 903 0.41 941 0.48 976 0.55 1009 0.63 1041 0.70 1071 0.77 1099 0.85 1154 1.00 1210 1.15 1262 1.30 3480 1500 956 0.48 992 0.55 1026 0.63 1059 0.71 1089 0.79 1118 0.87 1146 0.95 1199 1.11 1251 1.27 1302 1.43 3712 1600 1010 0.56 1045 0.64 1077 0.72 1109 0.80 1138 0.89 1167 0.98 1194 1.06 1245 1.23 1293 1.40 1342 1.57 3944 1700 1065 0.65 1098 0.73 1129 0.82 1159 0.91 1188 1.00 1215 1.09 1242 1.18 1292 1.36 1339 1.53 1384 1.72 4176 1800 1120 0.75 1151 0.84 1181 0.93 1210 1.02 1238 1.11 1265 1.21 1291 1.31 1340 1.50 1386 1.68 1429 1.87 4408 1900 1175 0.85 1205 0.95 1234 1.05 1262 1.14 1289 1.24 1315 1.34 1340 1.44 1388 1.65 1433 1.84 1476 2.04 4640 2000 1231 0.97 1259 1.08 1287 1.18 1314 1.28 1340 1.38 1365 1.49 1390 1.59 1437 1.81 1481 2.02 1523 2.22 5104 2200 1343 1.25 1369 1.36 1394 1.48 1420 1.59 1444 1.70 1468 1.81 1491 1.92 1536 2.15 1578 2.39 1618 2.62 5568 2400 1455 1.57 1480 1.70 1503 1.82 1526 1.94 1550 2.06 1572 2.19 1594 2.31 1636 2.56 1677 2.81 1716 3.07 6032 2600 1569 1.95 1591 2.08 1613 2.22 1635 2.36 1656 2.49 1678 2.62 1699 2.75 1739 3.02 1778 3.29 1815 3.56 6496 2800 1683 2.39 1704 2.53 1724 2.68 1744 2.83 1764 2.98 1785 3.11 1804 3.25 1843 3.54 1880 3.82 1915 4.11 6960 3000 1797 2.89 1817 3.05 1836 3.20 1855 3.36 1874 3.52 1892 3.68 1911 3.82 1948 4.12 1983 4.43 2018 4.74 7424 3200 1911 3.46 1930 3.63 1948 3.80 1966 3.96 1984 4.13 2002 4.30 2019 4.47 2054 4.78 2088 5.11 2121 5.43 7888 3400 2026 4.11 2044 4.29 2061 4.46 2078 4.64 2095 4.82 2112 4.99 2128 5.17 2161 5.52 2194 5.86 2225 6.20 8352 3600 2141 4.84 2158 5.02 2175 5.20 2191 5.39 2207 5.58 2223 5.77 2238 5.96 2269 6.33 2300 6.69 2331 7.05 8816 3800 2257 5.64 2273 5.84 2288 6.03 2304 6.23 2319 6.42 2334 6.62 2349 6.82 2378 7.22 2408 7.61 2437 7.99

RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP

•506 •0.08 •566 •0.12 •622 •0.15 •674 •0.19

"SP

Wheel Diameter 20 inches 508 mm Wheel Circumference 5.24 feet 1.597m Inlet Diameter/Area Outlet Size/Area 21 x Tip Speed 5.24 x RPM ft./minute 1.597x RPM m/minute Maximum BHP .67 x (RPM 1000)

"SP

SINGLE WIDTH SINGLE INLET

inches dia./2.58 sq. ft. 557 mm/.2397 m

inches I.D./2.32 sq. ft. 533 x 402 mm/.2155 m

BHP .4996 x (RPM 1000)3kW

"SP

•751 •0.26 •795 •0.30 •839 •0.35

"SP

SIZE 8120

"SP

•939 •0.49

"SP

•1036 •0.66

•1126 •0.86

"SP

VOL

OUT

CFM

VEL

3016 1300 1273 1.33 1376 1.62 3248 1400 1311 1.46 1406 1.78 1500 2.09 3480 1500 1350 1.60 1440 1.94 1530 2.27 1617 2.61 3712 1600 1390 1.74 1479 2.10 1561 2.46 1646 2.82 1727 3.18 3944 1700 1431 1.90 1518 2.27 1599 2.65 1676 3.04 1756 3.42 1832 3.80 1904 4.18 4176 1800 1472 2.07 1558 2.45 1638 2.85 1713 3.26 1786 3.67 1861 4.07 1933 4.47 2001 4.88 4408 1900 1517 2.24 1599 2.65 1678 3.06 1752 3.49 1821 3.92 1891 4.35 1962 4.77 2030 5.19 2095 5.62 4640 2000 1563 2.43 1640 2.86 1718 3.29 1791 3.73 1860 4.17 1925 4.63 1992 5.08 2060 5.52 2124 5.97 2187 6.42 5104 2200 1657 2.85 1730 3.31 1799 3.78 1871 4.25 1938 4.73 2003 5.22 2064 5.71 2123 6.22 2184 6.71 2245 7.19 5568 2400 1753 3.33 1824 3.82 1890 4.32 1953 4.83 2019 5.34 2082 5.86 2142 6.39 2200 6.92 2256 7.46 2310 8.01 6032 2600 1851 3.84 1919 4.39 1983 4.92 2044 5.46 2103 6.02 2163 6.57 2222 7.13 2279 7.69 2334 8.27 2387 8.84 6496 2800 1950 4.41 2016 5.01 2079 5.59 2138 6.17 2194 6.75 2249 7.35 2304 7.94 2360 8.54 2414 9.14 2466 9.75 6960 3000 2051 5.05 2115 5.68 2175 6.33 2233 6.94 2288 7.56 2341 8.18 2392 8.82 2441 9.46 2494 10.09 2546 10.73 7424 3200 2153 5.76 2214 6.42 2273 7.10 2329 7.79 2383 8.44 2434 9.10 2484 9.76 2532 10.44 2579 11.12 2627 11.80 7888 3400 2256 6.55 2315 7.25 2372 7.96 2427 8.68 2479 9.42 2529 10.10 2578 10.80 2625 11.50 2671 12.21 2715 12.93 8352 3600 2360 7.41 2418 8.15 2472 8.89 2525 9.65 2576 10.42 2625 11.19 2673 11.92 2719 12.65 2764 13.39 2807 14.14 8816 3800 2465 8.37 2521 9.13 2574 9.91 2625 10.70 2675 11.51 2723 12.32 2769 13.14 2814 13.90 9280 4000 2571 9.41 2625 10.21 2676 11.03 2726 11.85 2774 12.68 2821 13.53 9744 4200 2678 10.55 2730 11.39 2780 12.23 2828 13.09

10208 4400 2786 11.79 2836 12.66

VOL

OUT

CFM

VEL

5104 2200 2305 7.68 2419 8.67 •2526 •9.66 5568 2400 2364 8.56 2477 9.61 2584 10.68 •2684 •11.75 •2781 •12.85 6032 2600 2438 9.43 2537 10.62 2642 11.76 2742 12.90 2838 14.06 6496 2800 2516 10.36 2613 11.62 2705 12.89 2801 14.13 6960 3000 2596 11.38 2691 12.69 2782 14.02 7424 3200 2676 12.47 2770 13.84 7888 3400 2758 13.65

RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP

"SP

RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP

"SP

•1471 •1.92

"SP

•1588 •2.41 1675 2.77

"SP

•1698 •2.95 1778 3.32

"SP

•1803 •3.54 •1875 •3.91

"SP

•1972 •4.57

"SP

•2067 •5.29 2134 5.76

"SP

•2158 •6.05

"SP

• Approximate Max. Static Efficiency and Quietest Selection. CL. I CL. II

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Acme Engineering 8118 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual