Greenheck 4H18-20 User Manual

BUILDING VALUE IN AIR.

March

2006

Medium Pressure Axial Fans

Model TBI-CA Level 4 & 5 with Cast Aluminum Propeller

Belt Drive • Clean Air or Fume Exhaust • Emergency Smoke

Model TBI-CA inline medium pressure axial fans are designed for use in ducted or unducted applications with pressures ranging from 1 to 3.25 inches wg (250 – 812 Pa). TBI-CA Level 4 and 5 models are manufactured with heavy gauge steel and aircraft quality aluminum hubs and blades to efficiently move a wide volumetric flow in light commercial to severe industrial applications. The TBI-CA is tested in Greenheck’s accredited sound and air laboratory to ensure that it meets stringent performance requirements. In addition, all Greenheck products pass our rigorous endurance testing to ensure a long, reliable operating life. See pages 26 and 27 of this brochure for a complete list of Greenheck inline axial fans.

Typical applications include:

• General exhaust, supply or return air

• Industrial or commercial space ventilation

• Fume hood exhaust

• Paint booth exhaust

• Emergency smoke exhaust

TBI-CA Standard Features:

• Sizes from 18 - 60 inch (457 - 1,524 mm) propeller diameters

• Volume Range: 1,500 - 96,000 cfm (2,550 - 163,000 m3/hr)

• Static Pressure: Up to 3.25 inches wg (810 Pa)

• Temperatures: Up to 180°F (82°C) continuous

• Adjustable pitch cast aluminum propeller

• Spark resistant construction

• Motor and drives out of airstream

MEDIUM PRESSURE AXIAL FANS

Model Number Code –

The model number

system is designed to completely identify the fan.

TBI-CA Level 4

TBI-CA Level 5

Includes Bolt-on Vane Section

Leading Edge Support

Greenheck's products are supported by the industry’s best product literature, electronic media, and our Computer Aided Product Selection program (CAPS). You’ll also find extensive product information and Installation and Operation Manuals (IOM) on the Internet.

And, of course, you can always count on the personal service and expertise of our national and international representative organization. To locate your nearest Greenheck's representative call 715-359-6171 or visit our website at

Quick Delivery and Quick Build Programs

Greenheck’s Quick Delivery (QD) and Quick Build (QB) Programs ensure rapid response time with your needs dictating manufacturing time. Use CAPS or visit www.greenheck.com/quick to determine what programs are available for these products.

TBI-CA-4 L 36-30

Tube Axial Inline

B - Belt Drive

Propeller Material

CA - Cast Aluminum

Level of Construction

4, 5

Pitch Setting

L - Low Pressure H - High Pressure

Motor Horsepower

4 = 1/4 20 = 2 200 = 20 3 = 1/3 30 = 3 250 = 25 5 = 1/2 50 = 5 300 = 30 7 = 3/4 75 = 7 1/2 400 = 40 10 = 1 100 = 10 500 = 50 15 = 1 1/2 150 = 15

Fan Size

18, 20, 24, 30, 36, 42, 48, 54, 60

Electrostatic Powder Paint

Powder coatings offer a uniform, durable, and high quality finish. Powder coating is a one-coat process applied over a phosphatized surface that meets or exceeds the corrosion resistance of a comparable wet paint.

Greenheck offers a number of in-house coatings applied via “electrostatic powder.” The standard coating, Permatector™, is excellent for indoor or outdoor applications and also has resistance to many common chemicals. See Greenheck’s Product Application Guides for a complete list of available coatings and their chemical resistance. An updated list is available online at www.greenheck.com.

Maintenance / Serviceable Construction Advantages

The following features have been incorporated into the design to allow for quick and easy field service.

• Bearing lubrication is performed through extended grease fittings located on the outside of the fan housing.

• An adjustable motor base is provided for tightening the fan belts.

• Level 5’s bolt-on vane section can be removed to allow access to hub and blades.

• Propellers are easily removed with the use of taper lock bushings.

For additional access to the propeller and internal fan components for field service, see the “Easy Access Construction” option in the Accessories section.

Complete Assembly and Testing

The TBI-CA fans are completely assembled and tested before shipment. Our inspectors ensure that the fan is vibration free and that they are electrically safe for field operation.

Easy to Install and Operate

The compact designs of the TBI-CA models helps when fitting into tight spaces. In addition, integral connection punched flanges and optional Universal Mounting brackets accommodate motor position changes for last minute modifications or unexpected installation obstacles. Also available in roof upblast configuration (see pg. 5).

VALUE ADDED FEATURES

Adjustable Pitch Cast Aluminum Propellers

Levels 4 and 5 use heavy duty, cast aluminum airfoil propellers that are designed to meet varied capacity and pressure requirements.

• Hubs are single piece aluminum casting.

• Blade bases are cast around steel stems and allow for manual field adjustment of

blade pitch.

• All propellers are dynamically balanced to assure vibration free operation.

Housing

Housings are continuously welded to prevent air leakage. All steel constructed units are provided with Permatector™ coating. Aluminum or stainless housing construction is available upon request.

Inlet & Outlet Flanges

Integral inlet and outlet flanges with mounting holes are provided for an airtight ductwork connection.

Bearings

Bearings are air handling quality, grease lubricated, pillow block type. Bearings are selected with a basic rating fatigue life (L10) in excess of 80,000 hours {equal to L(50) 400,000 hours} at each fan’s maximum operating speed when mounted in a horizontal configuration.

Belt & Bearing Tube

Belts, bearings, and drives are protected from the airstream by a heavy gauge belt tube and bearing cover.

Adjustable Motor Base

Rigid structural motor bases are welded to the fan housing and include heavy duty adjustment screws for belt tensioning.

Extended Lube Lines

Extended lube lines with grease fittings allow bearing lubrication without disassembling the fan.

Drives

Greenheck offers either constant or adjustable speed drives for fan speed adjustments. Belts are static free and oil resistant.

Motors

All motors meet the classification for NEMA design B. Motors are available in open drip proof, totally enclosed, or explosion proof enclosures.

Vane Section (Level 5)

Straightening vanes improve efficiencies 20% by making the air flow more uniform and less turbulent. Additionally, this section can be removed to allow access to the fan hub and blade assembly.

STANDARD CONSTRUCTION

Horizontal Base Mount

Fig. 1

Horizontal Base Mount

Motor at 3 or 9 O'clock Position

Fig. 2

Mounting Rails

Vertical Ceiling Hung

Mounting Rails

Vertical Base Mount

Fig. 5

Horizontal and Vertical Mounting Configurations with Optional Brackets

All axial fans can be mounted horizontally or vertically. For ease of installation, eight optional mounting brackets are welded on each fan. These eight brackets along with mounting supports provide for Greenheck's Universal Mounting system.

Fig. 1 Horizontal Base Mount

Each fan is shipped as standard in this arrangement. Motor at 12 o'clock is standard.

Fig. 2 Horizontal Base Mount with motor at 3 or 9 o'clock

A set of optional mounting rails is required for this installation. This is the base mounting position required with the easy access option.

Fig. 3 Horizontal Ceiling Hung

In this installation the supports can be positioned for mounting the motor at either 6 or 12 o'clock.

Fig. 4 Horizontal Ceiling Hung with motor at 3 or 9 o'clock

A set of optional mounting rails is required for this installation.

Fig. 5 Vertical Mount

All TBI-CA fans can be mounted vertically (ceiling hung or base mount) for either upward or downward airflow. Optional mounting rails are recommended.

NOTE: All fans are shown with optional vibration isolators. See the appropriate submittal drawings or installation manual for complete dimensional data.

Horizontal Ceiling Hung

Motor at 3 or 9 O'clock Position

Fig. 4

Optional

Mounting Rails

Horizontal Ceiling Hung

Fig. 3

Model TBI-CA axial fans can be modified to accommodate high temperature process exhaust or emergency smoke and heat relief.

SPECIALIZED APPLICATIONS

Emergency Smoke Evacuation

High Temperature Fan Performance

For the greatest amount of internal cooling, discharge static pressure should be kept to a minimum while keeping most of the pressure on the inlet side. Locate the fan at ends of the duct runs and near the discharge point in the system. This set-up will promote the ambient air cooling effect.

Operating

Temperature

Time

Duration

F° C° Hours

180 82 Continuous

300 149 6

392 200 2

482 250 1

Curb Mounted Roof Upblast

TBI-CA axial fans can be offered with a roof curb mounted upblast design. This configuration allows the fan to be easily mounted to a roof curb such as Greenheck model GPSHL. The roof upblast design offers the following features and options:

Motor Cover – Weatherproof motor cover shields the motor and drive components from

dust, dirt, and moisture. Motor covers meet OSHA standards.

Fully Welded Curb Cap – Provides a transition from square roof curb to tubular fan

housing. Welded to the fan inlet and includes reinforcing gussets for extra strength.

Windband with Butterfly Dampers – Bolt on section that eliminates rain penetration.

Includes rubber gasket at damper closure edge to reduce noise when closing. Standard damper blades are steel. Optional aluminum damper blades for low volume applications are also available.

Correction Factors for Roof Upblast

The constants in the table (TBI-CA Roof Upblast Corrections) can be used to correct the air data in this catalog to include the losses for roof upblast designs. The required additional static pressure can be calculated by multiplying the appropriate correction factor times the CFM squared.

Example:

A size 36 TBI-CA is required to ventilate 25,000 cfm against 2 in. wg external static pressure and will be configured with roof upblast construction. The additional pressure to be added to the design static pressure before selecting the fan using the cataloged air data is as follows:

Ps = K * CFM

Ps = 4.78E-10 * 25,000

Ps = 0.299

The fan can now be selected from the catalog at 25,000 cfm against 2.299 in. wg.

Unit Size

K-factor

18 2.87E-8 20 1.59E-8 24 4.16E-9 30 1.23E-9 36 4.78E-10 42 2.25E-10 48 1.21E-10 54 7.10E-11 60 4.24E-11

TBI-CA Roof Upblast

Corrections

Duct to heat source

Airflow

Roof

Ambient temperature not to exceed 120ºF

Minimum duct at discharge

Cooling air for drives and bearings

Wall and/or ceiling should enclose fan when used for emergency heat and smoke exhaust.

Belt Guard

Belt guards provide protection from rotating pulleys and belts. Belt guards meet OSHA standards.

Motor Cover

Weatherproof motor cover shields the motor and drive components from dust, dirt, and moisture for indoor/outdoor installations. Motor covers meet OSHA standards.

Inspection Section

Inspection sections are an easily removable length of duct and are recommended to improve serviceability. Inspection sections are provided with a full diameter removable access panel.

Inspection Door

Bolted or hinged inspection door provides access through the fan tube for inspection of the propeller, bearings, and drives.

Easy Access Construction

Recommended to provide inspection, cleaning, and service of internal fan components. Allows for the removal of the fan shaft and bearings through the housing without removing the fan from the duct.

Inlet and Outlet Guards

Removable inlet and outlet guards provide protection for personnel and equipment in ducted or non-ducted installations. Inlet and outlet guards meet OSHA standards.

Inlet Bell with Inlet Guard

Inlet bells minimize entry losses in non-ducted applications by providing more uniform airflow into the propeller blades. Inlet bells with inlet guard meet OSHA standards.

Companion Flanges

Companion inlet flanges and outlet flanges with prepunched holes allow for bolted flange to flange connection with ductwork.

Shaft Seal

Neoprene or felt shaft seals are available to prohibit leakage of air into the bearing compartment of the fan.

Universal Mounting Brackets

Universal Mounting brackets include all hardware necessary to position the fan horizontally or vertically in either base mount or ceiling hung applications.

Mounting Rails

Mounting rails are required for horizontal mounting of TBI-CA belt driven fans when the motor is to be located in the 3 or 9 o’clock position or for all vertical applications. Universal Mounting brackets are required.

Isolators

Both base mount and hanging isolators are available in either neoprene or spring mounts. The isolators are furnished in sets of four and are sized to match the weight of each fan.

Special Coatings

Special coatings are available for protective purposes. Coatings are applied before assembly so that each manufactured component is coated inside and out. Painting the unit a specified color for appearance is also an option. See Greenheck’s Product Application Guide: Performance Coatings for Ventilation Products (FA/110-04R) for a complete list of coatings available and their chemical resistance, also available online at www.greenheck.com.

UL/cUL-705

UL/cUL 705 electrical listing available on 50 or 60 hz motors supplied by Greenheck.

Disconnect Switches

Toggle and heavy duty disconnect switches are available for positive electrical shut-off and safety in servicing fans. The switches can be factory mounted or shipped loose for field mounting.

• NEMA-1 – General purpose (indoor)

• NEMA-3R – Rainproof (outdoor)

• NEMA-4 – Watertight (outdoor)

• NEMA-7 & 9 – Class 1 and 2 hazardous locations.

ACCESSORIES

TBI-CA Size 18 Level 4

Specifications

Max Fan RPM - L = 2666 Max Fan RPM - H = 2700 Max Motor Frame Size = 184T Fan Tube Gauge = 10 ga. Approx. Weight (LM) = 195 lbs. Number of Blades = 8 Shaft Diameter = 1.1875 in. Outlet Velocity (fpm) = CFM / 1.84 ft

Tip Speed (fpm) = Fan RPM x 4.71

17.63

23.50

21.38

26.00

0.56

0.44 Number of holes=8

BC-Mounting Bolt Circle

21.63 OD

19.75 BC

18.38 ID

13.25

Shown with optional mounting brackets

Air Flow

Performance shown is for installation type B: free inlet, ducted outlet. Power rating (Bhp) does not include drive losses. Performance ratings do not include the effects of appurtenances in the airstream.

The sound power level ratings shown are in decibels, referred to 10

-12

watts calculated per AMCA Standard 301. Values shown are for inlet LwiA sound power levels for installation type

B: free inlet, ducted outlet. Ratings do not include the effects of end correction.

* Sound power values listed are at 0.50 inches pressure wg for each rpm.

** dBA sound pressure values are weighted with 11.5 dB attenuation for each octave band at 5 feet. Listed sound pressure value is for each rpm at 0.50 inches wg.

Optimum selection for propeller type shown in bold.

4H18-3

/3 1279 0.33 76 65 1948 1795 1581

4H18-3

/3 1321 0.35 75 64 2012 1864 1666

4L18-5

/2 1237 0.50 77 66 2762 2475 2114

4L18-5

/2 1277 0.55 78 67 2852 2575 2237

4H18-5

/2 1465 0.50 75 64 2231 2101 1940 1713

4H18-5

/2 1512 0.54 75 64 2303 2177 2026 1820

4L18-7

/4 1416 0.75 80 69 3162 2917 2634 2262

4L18-7

/4 1461 0.82 80 69 3262 3025 2755 2416

4H18-7

/4 1676 0.75 76 65 2553 2442 2312 2156 1941

4H18-7

/4 1730 0.81 76 65 2635 2529 2404 2257 2065

4L18-10 1 1558 1.00 82 71 3479 3258 3012 2722

4L18-10 1 1608 1.10 83 72 3591 3377 3143 2870

4H18-10 1 1845 1.00 77 66 2810 2711 2598 2469 2309 2097

4H18-10 1 1904 1.09 78 67 2900 2804 2696 2574 2428 2241

4L18-15 11/2 1783 1.50 85 74 3981 3791 3584 3358 3094

4L18-15 11/2 1841 1.64 85 74 4111 3927 3729 3512 3269 2965

4H18-15 11/2 2111 1.50 80 69 3215 3129 3035 2931 2815 2679 2512

4H18-15 11/2 2180 1.65 80 69 3320 3237 3147 3049 2939 2814 2666 2473

4L18-20 2 1963 2.00 86 75 4383 4212 4029 3832 3615 3365

4L18-20 2 2026 2.20 87 76 4524 4358 4182 3993 3789 3558 3280

4H18-20 2 2324 2.00 81 70 3539 3461 3380 3289 3190 3081 2958 2811 2627

4H18-20 2 2399 2.18 82 71 3654 3578 3500 3412 3318 3218 3103 2971 2813

4L18-30 3 2246 3.00 89 78 5015 4865 4709 4545 4371 4185 3978 3739

4L18-30 3 2319 3.29 89 78 5178 5033 4883 4726 4559 4381 4187 3970 3717

4H18-30 3 2660 3.00 84 73 4051 3983 3914 3838 3759 3672 3583 3479 3368 3243 3095

4H18-30 3 2700 3.10 85 74 4112 4045 3977 3903 3825 3741 3653 3554 3448 3327 3186

4L18-50 5 2665 5.00 93 82 5951 5825 5698 5563 5426 5280 5129 4972 4798 4611 4403

TBI-CA Performance Data - Level 4

Static Pressure in Inches WG / CFM

Model Motor Fan Max

***

0.000 0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00 2.25 2.50

Number HP RPM BHP

LwiA dBA

CFM CFM CFM CFM CFM CFM CFM CFM CFM CFM CFM

All dimensions are shown in inches.

TBI-CA Size 18 Level 5

Specifications

Max Fan RPM - L = 2666 Max Fan RPM - H = 2700 Max Motor Frame Size = 184T Fan Tube Gauge = 10 ga. Approx. Weight (LM) = 235 lbs. Number of Blades = 8 Shaft Diameter = 1.1875 in. Outlet Velocity (fpm) = CFM / 1.84 ft

Tip Speed (fpm) = Fan RPM x 4.71

17.63

23.50

21.38

26.00

0.56

0.44 Number of holes=8

BC-Mounting Bolt Circle

21.63 OD

19.75 BC

18.38 ID

13.25

Shown with optional mounting brackets

Air Flow

The sound power level ratings shown are in decibels, referred to 10

-12

watts calculated per AMCA Standard 301. Values shown are for inlet LwiA sound power levels for installation

type B: free inlet, ducted outlet. Ratings do not include the effects of end correction.

* Sound power values listed are at 0.50 inches pressure wg for each rpm.

** dBA sound pressure values are weighted with 11.5 dB attenuation for each octave band at 5 feet. Listed sound pressure value is for each rpm at 0.50 inches wg.

5L18-3

/3 1081 0.33 74 63 1783

5L18-3

/3 1116 0.37 75 64 1893

5H18-3

/3 1277 0.33 74 63 1628 1328

5H18-3

/3 1318 0.37 74 63 1707 1446

5L18-5

/2 1239 0.50 77 66 2258 1875

5L18-5

/2 1279 0.55 77 66 2370 2025

5H18-5

/2 1463 0.50 74 63 1972 1788 1492

5H18-5

/2 1510 0.55 74 63 2056 1885 1636

5L18-7

/4 1417 0.75 79 68 2739 2475 2105

5L18-7

/4 1463 0.83 80 69 2859 2610 2288

5H18-7

/4 1674 0.75 75 64 2335 2201 2033 1788

5H18-7

/4 1728 0.83 76 65 2426 2299 2144 1941

5L18-10 1 1559 1.00 81 70 3105 2882 2617 2241

5L18-10 1 1610 1.10 82 71 3233 3024 2777 2464

5H18-10 1 1843 1.00 77 66 2617 2507 2375 2213 1985

5H18-10 1 1903 1.10 77 66 2717 2610 2486 2338 2150 1857

5L18-15 1 1/2 1785 1.50 84 73 3663 3484 3285 3058 2777

5L18-15 1 1/2 1843 1.65 85 74 3803 3633 3448 3237 2987 2644

5H18-15 1 1/2 2109 1.50 79 68 3053 2959 2860 2745 2611 2450 2238

5H18-15 1 1/2 2177 1.65 80 69 3161 3072 2979 2870 2750 2610 2432 2175

5L18-20 2 1965 2.00 86 75 4097 3943 3772 3587 3379 3134 2804

5L18-20 2 2028 2.20 87 76 4248 4098 3937 3764 3573 3354 3083

5H18-20 2 2322 2.00 81 70 3392 3313 3226 3133 3028 2911 2778 2613 2391

5H18-20 2 2396 2.20 82 71 3509 3435 3350 3266 3165 3061 2934 2789 2611 2366

5L18-30 3 2249 3.00 89 78 4772 4638 4503 4354 4200 4028 3840 3629 3366

5L18-30 3 2321 3.30 89 78 4941 4812 4681 4540 4394 4233 4063 3871 3645 3363

5H18-30 3 2657 3.00 84 73 3920 3857 3785 3709 3633 3544 3452 3349 3236 3103 2952

5H18-30 3 2700 3.14 85 74 3988 3925 3856 3781 3706 3622 3532 3436 3325 3204 3062

5L18-50 5 2666 5.00 92 81 5742 5637 5523 5409 5291 5164 5037 4896 4751 4592 4425

TBI-CA Performance Data - Level 5

Static Pressure in Inches WG / CFM

Model Motor Fan Max

***

0.50 0.75 1.00 1.25 1.50 1.75 2.00 2.25 2.50 2.75 3.00

Number HP RPM BHP

LwiA dBA

CFM CFM CFM CFM CFM CFM CFM CFM CFM CFM CFM

Optimum selection for propeller type shown in bold.

38.00

All dimensions are shown in inches.

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