Coolair MB Brochure

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Page 1

Type MB

Wall Fan Packages

Page 2

Type MB Fan Packages

Application: Versatile

T ype MB fan packages have been specifically designed for use with C-fans ranging in size from 24 to 60 inches. The design allows for more versatility of use in all applications where a complete fan package is desired. These complete packages greatly simplify the specification and use of ventilation equipment in commercial and industrial metal buildings. Fan packages are shipped completely assembled and each package includes fan, shutter, guard, and housing as standard. By expanding upon the original design to allow for flexible usage, American Coolair MB fan packages are now more practical and efficient for use in supply or exhaust applications.

Drive Mechanism: Unique

Type MB Belt drive models are designed for quiet operation and low initial cost, using a variety of available motors. Each model incorporates a unique American Coolair fan bearing and shaft assembly whereby a shaft is mounted on a crossframe member and the power is applied directly to a cast aluminum hub. Drive belt power is applied to the fan/hub assembly in the same plane as the bearings. This reduces bearing load and dramatically increases fan life. Bearings are permanently lubricated and sealed. Most models are equipped with a variable pitch motor pulley which allows fan speed adjustment where desirable. The setting made at the factory operates the fan at the maximum safe load of the motor. The pulley may be opened to reduce fan speed and thus decrease air flow and sound levels. If an increase in fan speed is desired, contact your American Coolair representative for information on fan performance and motor load before making any adjustment.

Construction: Rigid, Long-Lasting

The wall housing is fabricated of galvanized steel for rigidity, long life and years of protection against rust and corrosion. An exterior finish coat of epoxy can be specified. Type MB fan packages feature aluminum shutters with reinforced interlocking blades. The fan panel is fabricated of heavy-gauge steel, and the uprights which support the motor and propeller are formed from heavy-gauge steel angle for maximum strength and rigidity.

• The fan panel assembly, mounted in the wall

housing, utilizes all-welded construction.

• The deep spun venturi orifice is specifically

engineered to provide maximum efficient air movement and quiet operation.

• The shutter is counterbalanced for automatic

(gravity) operation.

• All propeller blade assemblies are dynamically

balanced.

• Parts requiring painting are processed through

the advanced American Coolair multi-stage pretreatment system prior to the application of any coatings to ensure maximum finish adhesion. For additional protective coating options, see the Accessories section on Page

Motors: Efficient, Economical

American Coolair’s air-over-motor design provides extra capacity and economy because air velocity over motor is used to dissipate heat and thus increase horsepower capability. Totally-enclosed motors are standard f or MB fan packages. Several motor alternatives are available to fit your specific needs such as explosion-proof, energy-efficient, and severe-duty. Only nationally recognized brand motors with nationwide service facilities are used.

MB fan package for exh aust with optional di sc harge

hood

MB fan package for supply with optional inlet hood

(for better all-weather prot ec tion in supply configuration,

a motorized SR or SU inlet shutter is reco mmended)

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Selection

The following are some of the basic considerations in determining which model and how many fan packages are needed for a specific building. A more thorough discussion of the fan selection is available in American Coolair’s “Industrial and Commercial Ventilation Handbook”. Factory-trained representatives are also available locally to aid you. Simply consult a business directory or visit us at coolair.com to find an American Coolair representative in your area.

Fan Package Location

Fans should all be at one end of the building. They may be in the end wall or in a sidewall near the end. They should be located so that equipment or stacks of material in the building will not block airflow into the fans. If large doors are going to be kept open in warm weather, fans should be at the opposite end of the building from the doors.

Calculation of Air Volume:

Rate of Air Velocity Method. This is the method recommended by

American Coolair and will provide adequate air movement to produce personnel comfort, not just minimum ventilation.

CFM = H x W x V

Where: CFM is air volume in cubic feet per minute

H is the height of the building (ft.) W is the width of the building (ft.) V is the desired velocity (see table) (ft./min.)

VELOCITY TABLE

Length of Building Velocity

Up to 100’ 150 ft./min. 100’ to 200’ 200 ft./min. 200’ to 300’ 250 ft./min. 300’ and longer 250 ft./min plus booster fans

Example: Laundry 100’ long by 30’ wide by 15’ high. Air is to be pulled through the 100’ length.

CFM = 15’ x 30’ x 150 ft./min. = 67,500 cubic ft./ minute

Rate of Air Change Method. This is the most common method of specifying

air volume for small buildings (50,000 cubic feet or less). Rate can be specified for ventilation or personnel comfort.

H x W x L

CFM =

Where:

CFM is air movement in cubic feet per minute H is the height of the building (ft.) W is the width of the building (ft.) L is the length of the building (ft.) R is the rate of air change in minutes (see table)

TYPICAL RECOMM E NDE D

AIR CHANGE RATES

Personnel Type of Facility Comfort Ventilation

Bakeries, Restaurants, Laundries & other hot spots

Factories, Shops, Warehouses & Garages

Residences, Schools, 1 minute 5 minutes Offices & Churches

/2 minute 3 minutes

/4 minute 4 minutes

Example: Laundry 100’ long by 30’ wide by 15’ high — air is to be change to provide personnel comfort:

15’ x 30’ x 100’

CFM =

/2 minute

= 90,000 cubic ft./minute.

Air Intakes

Provision must be made for air to enter the building. Air intakes should be at the opposite end of the building from the fans so that air movement will occur throughout the building. Wall louvers or roof mounted intakes can be used. Your local American Coolair representative can help you determine what is needed and provide the proper intakes for you.

Sound Sound ratings may also be a factor in fan

selection. These are provided in sones. If additional information is needed, contact your American Coolair representative.

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Performance

Typical Specifications

Ratings

Belt driven propeller wall fan packages shall be American Coolair Type MBA, MBL,

MBH, and MBHX as manufactured by American Coolair Corporation, Jacksonville, Type MB fan ratings shown herein are net performance of complete fan package, including the effects of the shutter, wall housing, and guard. The air and sound performance ratings are based on American Coolair’s Type CB fans, which are licensed to bear the AMCA Certified Ratings Seal. BHP does not include drive losses.

Item Fan Fan Motor Fan Sone Max Approx. Shutter

No. 0" 1/8" 1/4" 3/8" 1/2"

1 2,998 2,822 2,629 2,384 --- MBA18H 2 3,421 3,268 3,104 2,926 2,692 MBA18J 3 3,915 3,782 3,642 3,496 3,336 MBA18K 4 4,356 4,237 4,113 3,985 3,850 MBA18L 1 2,143 32 1.25 135 SU

5 3,082 2,822 2,537 --- --- MBA20G 6 3,383 3,147 2,903 --- --- MBA20H 7 3,870 3,664 3,455 3,227 --- MBA20J 8 4,418 4,238 4,055 3,871 3,663 MBA20K 9 4,910 4,748 4,584 4,420 4,251 MBA20L* 1 1,856 30 1.25 140 SU

10 5,444 5,298 5,151 5,003 4,854 MBA20M* 11 5,010 4,266 --- --- --- MBL24G

12 5,588 4,950 --- --- --- MBL24H 13 6,244 5,691 4,972 --- --- MBL24J 14 7,222 6,757 6,199 --- --- MBL24K 15 7,557 7,163 6,697 6,024 5,365 MBH24L* 1 1,065 28 1.25 246 S 16 8,345 7,990 7,599 7,078 6,439 MBH24M*

17 6,755 5,346 --- --- --- MBL30G 18 7,531 6,327 --- --- --- MBL30H 19 8,334 7,273 5,696 --- --- MBL30J 20 9,725 8,836 7,788 --- --- MBL30K 21 10,713 9,895 8,878 --- --- MBH30L 1 807 25 1.25 290 S 22 11,761 11,027 10,165 9,088 --- MBH30M 23 12,836 12,170 11,420 10,512 9,463 MBH30N 2 967 34 2.25 316 S 24 14,775 14,203 13,584 12,888 12,077 MBH30P* 3 1,113 48 3.31 334 SR

25 8,191 5,894 --- --- --- MBL36G 26 9,168 7,218 --- --- --- MBL36H 27 10,583 9,087 --- --- --- MBL36J 28 11,799 10,542 8,631 --- --- MBL36K 29 13,314 12,240 10,681 --- --- MBL36L 1 668 15.5 1.25 361 LRW 30 14,197 12,893 11,604 9,702 --- MBH36M 31 15,659 14,489 13,310 11,963 10,127 MBH36N 2 750 24 2.25 393 S 32 18,185 17,200 16,144 15,156 13,965 MBH36P 3 871 30 3.35 411 SR 33 21,296 20,474 19,567 18,467 17,847 MBH36Q* 5 1,020 43 5.25 438 SR

34 10,973 7,612 --- --- --- MBL42H 35 12,640 9,957 --- --- --- MBL42J 36 14,074 11,694 7,975 --- --- MBL42K 37 15,909 13,788 11,384 --- --- MBL42L 1 477 17.4 1.25 343 LRW 38 16,991 15,161 12,957 9,865 --- MBH42M 39 18,765 17,132 15,255 12,959 9,429 MBH42N 2 571 25 2.25 373 LRW 40 21,789 20,403 18,883 17,164 15,147 MBH42P 3 663 32 3.34 390 S 41 26,160 25,021 23,812 22,514 21,099 MBH42Q 5 796 44 5.53 417 SR

Cubic Feet Per Minute (CFM) at Static Pressure

Florida; specific model s sh all be as show n in the fan sche dul e. Fan packag es shall

include fan unit, wall housing, (automatic gravity) shutter, and 1 X 1/2” PVC coated

inlet guard. Panels and structural angle supports shall be of welded steel

construction with spun orifice to provide improved performance (MBL, MBH, &

MBHX). Die formed steel blades shall be firmly attached to cast aluminum hub,

which also serves as driven sheave. Fan hub shall rotate on fixed shaft using

oversized se a le d b a l l b ea r in g s. B e l t l oa d sh a l l be a pp l ied to hub in the same plane

as bearings, eliminating overhung load on bearings and increasing bearing life.

Motor pulleys shall be variable pitch (except where noted below). (Specify for each

fan model in schedule the required CFM and static pressure; motor enclosure,

phase and voltage; and accessories such as wall shutter, motor side or front guard,

wall housing, etc.)

Model

Size HP RPM

1,475 18.0 0.41 110 SU

1,683 23.0 0.61 116 SU

1,926 27 0.91 130 SU

1,165 13.9 0.31 115 SU

1,279 16.5 0.40 115 SU

1,463 21.0 0.61 121 SU

1,670 26 0.91 135 SU

2,058 36 1.70 162 SU

2 1 1 1 3

1 1 1 3

1 1 3

702 12.7 0.30 216 LRW

783 16.0 0.41 216 LRW

875 19.8 0.60 219 LRW

1,012 26 0.90 223 S

1,176 33 1.56 248 S

505 10.4 0.30 276 LRW

563 13.0 0.41 276 LRW

623 16.1 0.60 279 LRW

727 20 0.90 282 LRW

886 28 1.70 309 S

411 6.8 0.30 349 LRW

460 8.3 0.41 349 LRW

531 10.1 0.60 352 LRW

592 13.2 0.90 355 LRW

680 20 1.65 385 LRW

329 8.7 0.41 330 LRW

379 11.3 0.60 333 LRW

422 14.0 0.90 336 LRW

517 22 1.65 365 LRW

Rating

BHP

Ship Wt. Model

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Item Fan Fan Motor Fan Sone Max Approx. Shutter

No. 0" 1/8" 1/4" 3/8" 1/2"

42 15,084 11,079 --- --- --- MBL48J 43 17,382 14,225 --- --- --- MBL48K 44 19,441 16,686 --- --- --- MBL48L 1 406 16.9 1.25 403 LRW 45 20,722 18,318 14,065 --- --- MBH48M 46 23,014 20,899 17,851 --- --- MBH48N 2 472 23 2.25 438 LRW

Cubic Feet Per Minute (CFM) at Static Pressure

Model

Size HP RPM

1 3

315 10.6 0.60 393 LRW

363 14.1 0.90 396 LRW

425 19.6 1.66 431 LRW

Rating

BHP

Ship Wt. Model

47 26,183 24,351 22,184 18,520 --- MBH48P 3 537 29 3.34 455 LRW 48 30,912 29,374 27,734 25,701 22,536 MBH48Q 5 634 37 5.49 482 S 49 34,223 32,795 31,532 30,380 29,241 MBHX48R 50 37,531 36,214 35,030 33,944 32,914 MBHX48S

51 16,433 10,224 --- --- --- MBH54J 52 19,239 15,312 --- --- --- MBH54K

7 1/

10 817 57 10.39 812 SR

1 3

53 21,529 18,183 --- --- --- MBH54L 1 376 17.6 1.25 446 LRW 54 23,132 20,063 14,165 --- --- MBH54M 55 25,880 23,172 19,756 --- --- MBH54N 2 452 23 2.26 457 LRW

745 49 7.92 780 SR

287 11.1 0.60 432 LRW

336 14.6 0.91 439 LRW

404 19.5 1.68 450 LRW

56 29,201 26,824 24,208 19,549 --- MBH54P 3 510 28 3.35 484 LRW 57 35,736 33,713 31,531 28,908 --- MBHX54Q 5 547 33 5.37 775 S 58 41,485 39,756 37,943 35,982 33,671 MBHX54R 59 45,143 43,560 41,915 40,181 38,269 MBHX54S

60 25,107 19,853 --- --- --- MBHX60L 1 297 13.0 1.25 759 S 61 27,728 23,068 --- --- --- MBHX60M

635 43 8.39 832 SR

10 691 50 10.71 864 SR

328 15.7 1.66 771 S

62 30,264 26,137 21,017 --- --- MBHX60N 2 358 18.2 2.25 775 S 63 34,237 30,775 26,496 --- --- MBHX60P 3 405 21 3.19 793 S 64 40,746 37,992 34,490 30,948 --- MBHX60Q 5 482 28 5.40 820 S 65 47,171 44,861 42,092 38,908 35,891 MBHX60R

558 37 8.38 878 S

66 51,989 49,923 47,546 44,758 41,888 MBHX60S 10 615 45 11.04 911 SR

1 - The first three or four letters of model number identify fan type, drive configuration and style. The next two numbers indicate fan size; the

next letter identifies the motor horsepower. Example; Model MBL24G is Type M, belt drive, Style L, 24” size 1/4 HP.

2 - The sound ratings shown are loudness values in sones at 5 ft. (1.5m) in a hemispheri cal free field calculated per AMCA standard 301.

Values shown are for installation Type A: free inlet fan sone levels. The ratings shown are at 0” static pressure.

3 - Maximum brake horsepower (BHP) within the catalog perf ormance range. BHP does not include belt drive losses. Bearing losses are

included. BHP at most static pressures listed is less than sho wn, in some cases, substantially less. F or specific BHP values at individual static pressure points, contact your American Coolair representative. Because of the cooling the motor receives f rom the moving airstrea m, motor loading beyond the nominal nameplate rating on these American Coolair fans does not overheat the motor and is within NEMA recommended limits and motor service factor. It is not detrimental to the motor and is economically desirable.

* - These models use fixed pitch motor pulleys.

To convert air performance (CFM and SP) and power (BHP) to metric units, multiply CFM x .000472 to obtain cubic

meters per second (CMS). Multiply SP x 248.36 to obtain Pascals (Pa). Multiply BH P x .7457 to obtain Kilowatts (kW).

Example: 3904 CFM x .000472 = 1.8427 C MS

0.125 SP x 248.36 = 31.05 Pa

0.886 BHP x .7457 = 0.661 kW

ALL SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE

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PVC-Coated

Wire Guard

Standard MB Fan Package

Fan Housing

C-Fan

Shutter - (LRW shown - S/SR shutter used on

higher flow models)

Accessories for MB Fan Packages

INLET HOOD OPTION

• Specifically designed for supply applications

• Designed to prevent entrainment of moisture into the airstream

• Hardware kit included for ease of assembly

• PVC-coated wire guard available

• Wide range of sizes to fit every need

DISCHARGE HOOD OPTION

• Specifically desig ne d for e xha ust ap plic a tio ns

• Designed for all-weather performance with minimal pressure losses

• Hardware kit included for ease of ass embly

• PVC-coated wire guard available

• Wide range of sizes to fit every need

Spark-Resistant Construction

For hazardous locations, MBL and MBH fan packages can be ordered with a non-ferrous blade assembly and explosion proof motor. Motors only Group D and Class II Groups F & G hazards.

qualify for Class I

Protective Coatings

For most applications, the American Coolair thermosetting epoxy powder coating system will provide the necessary surface protection for painted parts. For applications that require more specialized surface protection, American Coolair offers alternatives such as 6 mil epoxy coating or hot dip galvanizing. For more information about special protective coatings, contact your American Coolair representative.

Shutter Bird Guard

Guard made of PVC–coated steel wire with 1/2” x 1” spacing protects shutter from damage by birds or vandalism. Attaches flat against shutter face giving an attractive appearance (requires Type S or SR shutter).

Mounting Flanges

Galvanized steel mounting flanges can be used for mounting an inlet hood or a discharge hood to the wall. They can also be used to mount the fan housing to the wall if the fan housing is extending through the wall. A hardware kit for installation is included.

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Type MB Fan Package and Accessory Dimensions

S/SR SHUTTER1

SU SHUTTER

LRW SHUTTER

A SQ.

AIRFLOW

Dimensions in inches

3 3/4

2 1/2

5 7/8

/2 x 1 PVC-COATED WIRE GUARD

Dimension A is the OD of the square wall housing, including hardware.

Dimension B is the length of the wall housing.

Dimension C is the OD of the shutter frame.

Dimension D is the overall

Fan

Size

18, 20

Dimensions in Inches

A B

LRW

S/SR/

D E F G

Square Wall Opening

Shutter

Clearance

Housing

Clearance

26 1/4 25 3/8 — 22 1/4 19 26 1/2 27 1/2 29 1/2 22 3/4 27 32 1/4 26 7/8 27 28 3/8 22 32 1/2 33 1/2 35 3/8 28 7/8 33

length of the discharge

38 1/4 26 7/8 33 34 3/8 24 5/8 38 1/2 39 1/2 41 3/8 34 7/8 39

44 1/4 32 5/8 39 40 3/8 27 5/8 44 1/2 45 1/2 47 3/8 40 7/8 45

50 1/4 32 5/8 45 46 3/8 30 1/4 50 1/2 51 1/2 53 3/8 46 7/8 51

56 3/8 32 5/8 51 52 3/8 32 7/8 56 1/2 57 1/2 59 1/2 52 7/8 57 1/8

62 3/8 32 5/8 57 58 3/8 35 3/4 62 1/2 63 1/2 65 5/8 58 7/8 63 1/8

68 3/8 32 5/8 — 64 3/8 35 3/4 68 1/2 69 1/2 71 5/8 64 7/8 69 1/8

1 - LRW shutter used on most models. S/SR shutter used on higher flow models. SU shutter used on all MBA models. See Pages 4 & 5 for shutter

usage by fan model. 2 - “Shutter Clearance” Wall Opening Dimension is for metal building installations only. Opening allows for shutter frame only to protrude to the outside. 3 - “Housing Clearance” Wall Op eni ng Dimension is f or i ns t a ll a ti ons where the MB pac k a g e is to be recessed into a wall.

hood. Dimension E is the overall

height of both the discharge and inlet hood.

Dimension F is the overall length of the inlet hood.

Dimension G is the overall height of the mounting flanges.

Dimensions in inches

/2 x 1, 16 GA.

PVC-COATED WIRE GUARD

DISCHARGE HOOD

E G

1 5/8

MOUNTING

FLANGES

INLET HOOD

F D

/2 x 1, 16 GA. PVC-COATED WIRE GUARD

Page 8

Installation and Maintenance

Installation: Type MB fan packages are shipped

completely assembled with shutter, housing, fan and guard for quick, easy installation. Installation and maintenance instructions are included.

• Place the fan package on a supporting girt, on the inside of the building, and push the fan package against the outside skin.

• Cut an opening in the building panel slightly larger than the shutter frame and smaller than the fan housing (See dimensions on Page 7).

• Push the shutter through the opening.

• Attach two pieces of angle (supplied by others),

one on either side of the fan housing, from the support girt to the girt above (See Figure 1).

• Fasten the fan housing to the angle with 6 selfdrilling, sheet metal screws (3 per side).

• Attach the building panel to the fan housing above the shutter.

• Flash and caulk around the shutter opening to suit the building panel.

• All electrical connections should be made by a licensed electrician.

Maintenance: Type MB fan packages should be

cleaned as necessary to remove accumulated dust, dirt and other foreign matter which may collect on blades or other fan package parts. Fan belt should be inspected and tension adjusted after the first 8-10 hours of fan operation and periodically thereafter. Check belt for proper alignment. Fan bearings are permanently lubricated. For lubrication of electric motor, see instructions supplied by the motor manufacturer.

Fig. 1

Limited Warranty

In the sale of its products, American Coolair Corporation agrees to correct, by repairs or replacement, any defects in workmanship or material that may develop under proper and normal use during the period of one year from the date of shipment from the factory. Any product or part proving, upon American Coolair's examination, to be defective during limited warranty period will be repaired or replaced, at American Coolair's option, f.o.b. factory, without charge. Deterioration or wear caused by chemicals, abrasive action or excessive heat shall not constitute defects. Motors are guaranteed only to the extent of the manufacturer’s warranty. American Coolair's limited warranty does not apply to any of its products or parts that have been subject to accidental damage, misuse by the user, unauthorized alterations, improper installation or electrical wiring, or lack of proper lubrication or other service requirements as established by American Coolair. Repairs or replacements provided under the above terms shall constitute fulfillment of all American Coolair's obligations with respect to limited warranty. THE LIMITED WARRANTY STATED HEREIN IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS, STATUTORY OR IMPLIED, INCLUDING WITHOUT LIMITATION THAT OF MERCHANTABILITY AND FITNESS. NO LIABILITY FOR RE INSTALLATION COST OR FOR A NY SPECIAL, INDIRECT OR CONS EQUENTIAL DAMAGES O F ANY NATURE IS ASSUMED OR SHALL BE IMPOSED UPON AMERICAN COOLAIR.

WARNING CAUTION

DO NOT INSTALL FAN WITH MOVING PARTS WITHIN

8 FEET OF FLOOR OR GRADE LEVEL WITHOUT A GUARD THAT COMPLIES WITH OSHA REGULATIONS. DO NOT WIRING COMPLIES WITH ALL APPLICABLE CODES.

DO NOT SOURCE DISCONNECT AT THE FAN ITSELF. DO NOT SERVICE EXCEPT BY A QUALIFIED

MAINTENANCE TECHNICIAN AND ONLY AFTER DISCONNECTING THE POWER SOURCE. FAILURE TO OBSERVE THESE PRECAUTIONS CAN RESULT IN SERIOUS INJURY OR DEATH.

Represented By:

WIRE WITHOUT PROVIDING FOR A POWER

USE UNLESS ELECTRICAL

AMERICAN COOLAIR CORPORATION

PO BOX 2300, JACKSONVILLE, FL 32203 Phone: (904) 389-3646 Fax: (904) 387-3449 E-mail: [email protected] Website: www.c oolair.com

Form No. 530-15-8 (August, 2011)