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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.

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.

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.

General Safety Information

CAUTION

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

Vektor-CD 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.

®

PN 47555

Centrifugal Laboratory Exhaust

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

Precaution should be taken in explosive 
atmospheres.

by

Summary of Contents for 471555

Page 1: ...n 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...

Page 2: ...nal use consider using Tectyl 511M Rust Preventive or WD 40 or the equivalent 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 ac...

Page 3: ...sed 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 Standard Fan Configurations The following i...

Page 4: ...ase 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 Greenheck Roof Curb for Vektor Systems Install 1 2 in bolt 5 1 2 in maximum bolt spacing 4 in ma...

Page 5: ...n 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 submit...

Page 6: ...O ROOF DECK FAN PLENUM AND CURB FAN PLENUM AND CURB FAN AND PLENUM NO CURB FAN AND CURB NO PLENUM Field drilled bolted by others Bypass Air Plenum Structural Support by others 3 16 in silicone gasket by Greenheck Weatherhood with birdscreen optional 5 16 in bolt typical by Greenheck Plenum no Curb to Channel Base Fan Plenum and Curb to Roof Deck Plenum Assembly continued An additional side or acce...

Page 7: ...e designed and installed by others Guy wire attachments Fan Assembly Stack Extension If fan requires a stack or stack extension install on fan before installing nozzle and windband Place gasketing between any sections blower housing and initial stack Use lifting lugs to position each piece into place Attach stack or stack extension to blower housing using 316 stainless steel bolts provided through...

Page 8: ...ching ductwork to the plenum care should be taken to ensure a tight fit and proper seal to prevent leakage of the contaminated airstream Ductwork that is a different size than the removable access panel can either use a transition to the plenum s opening size or the access panel can be field modified by cutting an opening to the size of the ductwork Vektor Field Coating Repair Procedure for Scratc...

Page 9: ... diagram above If fan flow motor speed is to be controlled using a VFD the reduced voltage and frequency supplied to the fan will cause control problems with the isolation damper actuator When a Vektor control sequence requires the use of a VFD it is suggested that the control contractor supply the isolation damper actuator voltage independent of the power supplied to the Vektor fan motor For Vekt...

Page 10: ...lti speed motors should be checked on low speed during initial start up 4 Check for unusual noise vibration or overheating of bearings Refer to the Troubleshooting section of this manual if a problem develops 5 Grease may be forced out of the bearing seals during initial start up This is a normal self purging feature of this type of bearing Vibration Excessive vibration is the most frequent proble...

Page 11: ...ts off the sheaves After replacing belts ensure that slack in each belt is on the same side of the drive Belt dressing should never be used Do not install new belts on worn sheaves If the sheaves have grooves worn in them they must be replaced before new belts are installed The proper tension for operating a V belt drive is the lowest tension at which the belts will not slip at peak load condition...

Page 12: ...D fans use Mobil Mobilith SHC 100 synthetic grease conforming to NCGI Grade 2 Never mix greases made with different bases This will cause a breakdown of the grease and possible failure of the bearing For specific information contact the factory representative or the fan system submittals Service V Belt Drives The V belt drive components when supplied by Greenheck Fan Corporation have been carefull...

Page 13: ... should be checked after the fan has been in operation for 24 hours and before start up after the unit has been serviced Radial gap is adjusted by loosening the inlet cone ring bolts and centering the cone ring on the wheel If additional adjustment is required to maintain a constant radial gap loosening the bearing bolts and centering the wheel is acceptable as a secondary option Overlap is adjust...

Page 14: ...upply Check fuses circuit breakers Check for switches turned off or disconnected Check for correct supply voltage Drive Check for broken belts Tighten loose pulleys Motor Assure motor is correct horsepower and not tripping overload protector Overheated bearing Lubrication Check for excessive or insufficient grease in the bearing Mechanical Replace damaged bearing Relieve excessive belt tension Ali...

Page 15: ...______________ _________________________________________________ _________________________________________________ Maintenance Log Date___________________ Time______________ AM PM Notes ___________________________________________ _________________________________________________ _________________________________________________ _________________________________________________ ____________________...

Page 16: ...hould be returned to the nearest authorized motor service station Greenheck will not be responsible for any removal or installation costs As a result of our commitment to continuous improvement Greenheck reserves the right to change specifications without notice Greenheck Catalog Vektor CD provides additional information describing the equipment fan performance available accessories and specificat...

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