Greenheck Fan 47555 User Manual

PN 471555

Centrifugal Laboratory Exhaust

Installation, Operation and Maintenance Manual

Please read and save these instructions. Read carefully before attempting to assemble, install, operate or maintain the product described. Protect yourself and others by observing all safety information. Failure to comply with instructions could result in personal injury and/or property damage! Retain instructions for future reference.

Vektor-CD Direct or Belt Drive

The Vektor-CD fan is a side inlet centrifugal blower with a high plume dilution nozzle designed for laboratory exhaust systems. Available in either direct or belt drive conﬁgurations, the Vektor-CD is capable of up to 14 inches wg of static pressure and 100,000 cfm and can be constructed to AMCA spark B or C speciﬁcations. All fans are AMCA 210 and 260 certiﬁed for ﬂows as well as AMCA 300 for sound. The Vektor-CD is available in 15 sizes ranging from 12 to 66 inch wheels. Each fan has a permanently afﬁxed manufacturer’s engraved metal nameplate containing the model number and individual serial number.

General Safety Information

Only qualiﬁed personnel should install this fan system. Personnel should have a clear understanding of these instructions and should be aware of general safety precautions. Improper installation can result in electric shock, possible injury due to coming in contact with moving parts, as well as other potential hazards. Other considerations may be required if high winds or seismic activity are present. If more information is needed, contact a licensed professional engineer before moving forward.

DANGER

Always disconnect power before working on or near a fan. Lock and tag the disconnect switch or breaker to prevent accidental power up.

CAUTION

When servicing the fan, motor may be hot enough to cause pain or injury. Allow motor to cool before servicing.

CAUTION

1. Follow all local electrical and safety codes, as well as the National Electrical Code (NEC), the National Fire Protection Agency (NFPA), where applicable. Follow the Canadian Electric Code (CEC) in Canada.

2. The rotation of the wheel is critical. It must be free to rotate without striking or rubbing any stationary objects.

3. Motor must be securely and adequately grounded.

4. Do not spin fan wheel faster than maximum cataloged fan rpm. Adjustments to fan speed signiﬁcantly effects motor load. If the fan RPM is changed, the motor current should be checked to make sure it is not exceeding the motor nameplate amps.

5. Do not allow the power cable to kink or come in contact with oil, grease, hot surfaces or chemicals. Replace cord immediately if damaged.

6. Verify that the power source is compatible with the equipment.

7. Never open access doors to a duct while the fan is running.

Precaution should be taken in explosive atmospheres.

Vektor-CD Centrifugal Laboratory Exhaust

Receiving

Upon receiving the product, check to make sure all items are accounted for by referencing the bill of lading to ensure all items were received. Inspect each crate for shipping damage before accepting delivery. Notify the carrier if any damage is noticed. The carrier will make notiﬁcation on the delivery receipt acknowledging any damage to the product. All damage should be noted on all the copies of the bill of lading which is countersigned by the delivering carrier. A Carrier Inspection Report should be ﬁlled out by the carrier upon arrival and the Trafﬁc Department. If damaged upon arrival, ﬁle claim with carrier. Any physical damage to the unit after acceptance is not the responsibility of Greenheck Fan Corporation.

Unpacking

Verify that all required parts and the correct quantity of each item have been received, including accessory kit containing ﬂex connector, gasketing, etc. If any items are missing report shortages to your local representative to arrange for obtaining missing parts. Sometimes it is not possible that all items for the unit be shipped together due to availability of transportation and truck space. Conﬁrmation of shipment(s) must be limited to only items on the bill of lading.

Handling

Fans are to be rigged and moved by the lifting brackets provided or by the skid when a forklift is used. Location of brackets varies by model and size. Handle each piece in such a manner as to keep from scratching or chipping the coating. Damaged ﬁnish may reduce ability of fan to resist corrosion. See coating repair section of this manual for details involving touch-up of damaged surfaces.

Fans should never be lifted by the shaft, fan housing, motor, belt guard, weatherhood, windband or other accessories.

Storage

Fans are protected against damage during shipment. If the unit cannot be installed and operated immediately, precautions need to be taken to prevent deterioration of the unit during storage. The user assumes responsibility of the fan and accessories while in storage. The manufacturer will not be responsible for damage during storage. These suggestions are provided solely as a convenience to the user.

INDOOR

The ideal environment for the storage of fans and accessories is indoors, above grade, in a low humidity atmosphere which is sealed to prevent the entry of blowing dust, rain, or snow. Temperatures should be evenly maintained between 30°F (-1°C) and 110°F (43°C) (wide temperature swings may cause condensation and “sweating” of metal parts). All accessories must be stored indoors in a clean, dry atmosphere.

Vektor-CD Centrifugal Laboratory Exhaust

Remove any accumulations of dirt, water, ice or snow and wipe dry before moving to indoor storage. To avoid “sweating” of metal parts allow cold parts to reach room temperature. To dry parts and packages use a portable electric heater to get rid of any moisture build up. Leave coverings loose to permit air circulation and to allow for periodic inspection.

The unit should be stored at least 3½ in. (89 mm) off the ﬂoor on wooden blocks covered with moisture proof paper or polyethylene sheathing. Aisles between parts and along all walls should be provided to permit air circulation and space for inspection.

OUTDOOR

Fans designed for outdoor applications may be stored outdoors, if absolutely necessary. Roads or aisles for portable cranes and hauling equipment are needed.

The fan should be placed on a level surface to prevent water from leaking into the fan. The fan should be elevated on an adequate number of wooden blocks so that it is above water and snow levels and has enough blocking to prevent it from settling into soft ground. Locate parts far enough apart to permit air circulation, sunlight, and space for periodic inspection. To minimize water accumulation, place all fan parts on blocking supports so that rain water will run off.

Do not cover parts with plastic ﬁlm or tarps as these cause condensation of moisture from the air passing through heating and cooling cycles.

Fan wheels should be blocked to prevent spinning caused by strong winds.

Inspection and Maintenance during Storage

While in storage, inspect fans once per month. Keep a record of inspection and maintenance performed; see page 15.

If moisture or dirt accumulations are found on parts, the source should be located and eliminated. At each inspection, rotate the wheel by hand ten to ﬁfteen revolutions to distribute lubricant on motor and bearings. If paint deterioration begins, consideration should be given to touch-up or repainting. Fans with special coatings may require special techniques for touch-up or repair.

Machined parts coated with rust preventive should be restored to good condition promptly if signs of rust occur. Immediately remove the original rust preventive coating with petroleum solvent and clean with lint-free cloths. Polish any remaining rust from surface with crocus cloth or ﬁne emery paper and oil. Do not destroy the continuity of the surfaces. Wipe clean thoroughly with Tectyl® 506 (Ashland Inc.) or the equivalent. For hard to reach internal surfaces or for occasional use, consider using Tectyl® 511M Rust Preventive or WD-40® or the equivalent.

REMOVING FROM STORAGE

Lifting Lugs

Gasketing

Spreader Bar

Chains

Bypass Ai

Plenum

Roof Curb / Structural Support

Vektor-CD

Single Fan System

Vektor-CD

Opposed Fan System

Vektor-CD

Dual Fan System

Vektor-CD

Triple Fan System

ISOLATOR

WINDBAND

NOZZLE

FAN

FLEX CONNECTOR

ISOLATION DAMPER

PLENUM

CURB SQR

PRIMARY INLET

OPTIONAL ROOF CURB

As fans are removed from storage to be installed in their ﬁnal location, they should be protected and maintained in a similar fashion, until the fan equipment goes into operation.

Prior to assembly and installation of the Vektor fan and system components, inspect the fan assembly to make sure it is in working order.

1. Check all fasteners, set screws on the fan, wheel, bearings, drive, motor base and accessories for tightness.

2. Rotate the fan wheel(s) by hand and assure no parts are rubbing. Access to the wheel is obtained through a bolted panel located on the side of the fan housing.

3. Ensure proper wheel settings for radial gap and alignment. Refer to page 13.

Installation

Installations with inlet or discharge conﬁgurations that deviate from this standard may result in reduced fan performance. Restricted or unstable ﬂow at the fan inlet can cause pre-rotation of incoming air or uneven loading of the fan wheel yielding large system losses and increased sound levels.

System Identiﬁcation Tags

Vektor fan systems may arrive in component pieces due to shipping restrictions. Individual components of a system have matching identiﬁcation tags which should be used to identify and assemble the complete system. Assembling systems with different identiﬁcation tags can cause reductions in the fan(s) performance.

Vektor-CD Arrangements

Rigging / Assembly Instructions

1. Use standard lifting and rigging practices.

2. All lifting lugs on each component must be utilized at the same time.

3. Plenum, blower, and windband are to be kept level during installation.

Standard Fan Conﬁgurations

The following illustration identiﬁes a typcial conﬁguration of the Vektor-CD system. Greenheck also supplies custom conﬁgurations. Your system may not be depicted in the drawing shown. Refer to submittal drawing.

Vektor-CD Centrifugal Laboratory Exhaust

Curb Installations

Greenheck Roof Curb for Vektor Systems

Install 1/2 in. bolt 5-1/2 in. maximum bolt spacing 4 in. maximum spacing from curb corners (hardware by others)

Concrete structural support (by others)

Greenheck Roof Curb for Vektor Systems

Continuous Weld or Stitch Weld 6 in. minimum stitch weld x 3-1/4 in. spacing Minimum 6 in. weld on each corner. (hardware by others)

Steel structural support (by others)

Greenheck Roof Curb for Vektor Systems

Install 1/2 in. lag or thru-bolt (as determined by structural engineer) with 1 in. washer in each hole shown above (hardware by others)

Wooden structural support (by others)

Bases—Foundation and Isolation

Greenheck supplies gasketing material for all multisection curbs and/or plenums. Install gasketing prior to bolting split curbs and or plenums together.

NOTE: Steel, concrete or wood support is per structural engineer and in accordance with load requirements and applicable building codes.

Structural Steel

Concrete Deck

Critical to every fan installation is a strong, level foundation. A reinforced poured concrete pad with a structural steel base or inertia base provides an excellent foundation. Structural bases must be sturdy enough, with welded construction, to prevent ﬂexing and vibration.

To eliminate vibration and noise from being transferred to the building, vibration isolators should be used. The fan is mounted directly on the isolation base and must be supported for the entire length of the fan base angle (Refer to the installation manual for structural bases if the base was supplied by Greenheck). Isolators are installed between the isolation base and the foundation.

After the fan, isolation base and isolators are installed, the entire assembly must be leveled. Position the level on the isolation base, not the fan shaft, for proper leveling. Additionally, the motor and fan shafts must be level and parallel relative to each other for proper alignment.

Wood Deck

Vektor-CD Centrifugal Laboratory Exhaust

Riser Installation

Plenum Assembly

Check curb or structural supports for levelness. Both must be level to ensure proper drainage from plenum and fan(s).

Lab Exhaust Riser

Riser duct(s) run up through the curb and are ﬂanged over the curb. (by contractor)

Roof Curb—anchor curb to roof deck structure in accordance with project construction documents and local codes.

Plenum Isometric View

For side inlet fans, remove panel at end of plenum. This opening is the designed connection spot for user connected ductwork from building.

Note: Gasketing material (shipped with fan) should be placed on the top edge of already installed roof curb prior to placing the plenum or individual plenum sections on the curb.

If the plenum is shipped disassembled, the plenum sections can be assembled together into one single piece before lifting onto the roof and then ﬁtted on the roof curb / support structure, or each section can be placed on individually. The method used would be dependent on the lifting capacity for the equipment on-site. If moving each piece separately onto the roof curb or support structure, each section should be joined to its mating part before moving another section into place.

For a 1x1 system there is only a single plenum section and no multiple plenum assembly would be required.

Determine the placement of the plenum sections relative to each other (Multiple Fan Systems)

When looking at the individual section one will notice that each plenum section is missing at least one side panel. These areas are the locations where the sections are to be joined together. If you have two plenum sections, then each one would be missing a side panel. If you have a three-fan system, there are three plenum sections. The two end plenum sections would each be missing one side panel and the middle section would not have panels on two sides. Please refer to the submittal drawing for the orientation of any Bypass Air Plenum (BAP) dampers or air inlet locations.

Putting the plenum together

After identifying the plenum sections arrangement order, one of the two mating sections has weld nuts on the inside of the plenum. The assembly hardware (stainless steel bolts) required to join the sections is located here for shipping purposes. These bolts should be removed and set-aside prior to placing the mating sections together. The bolts are located every 6 to 10 inches to provide the best seal between the mating sections.

Before moving the sections into position, gasketing must be installed to seal the plenum sections against leakage. This silicone gasketing is supplied with the fans and only needs to be applied to one of the two mating plenum sections. The bands or strips of gasketing should be attached around the perimeter of the joining face and with an additional strip making a triangular area in each corner.

After the gasketing has been attached and the hardware has been removed, place the two mating sections together. The stainless steel bolts, which were set aside earlier, are now run ﬁrst through the holes of the plenum section without the weld nuts and tighten into the weld nuts on the other plenum section.

Vektor-CD Centrifugal Laboratory Exhaust

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