Greenheck Vektor-H, Vektor-HS Maintenance Manual
®
Document 469003
Model Vektor®-H and Vektor®-HS
®
Laboratory Exhaust System
Installation, Operation and Maintenance Manual
Please read and save these instructions for future reference. 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 these instructions will result in voiding of the product warranty and may result in personal injury
and/or property damage.
Vektor®-H
Belt Drive
Vektor®-H
Direct Drive
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.
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 Electrical 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.
Vektor®-HS
Belt Drive
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.
DANGER
Always disconnect, lock and tag power source before
installing or servicing. Failure to disconnect power
source can result in fire, shock or serious injury.
CAUTION
When servicing the fan, motor may be hot enough
to cause pain or injury. Allow motor to cool before
servicing.
CAUTION
Precaution should be taken in explosive atmospheres.
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Receiving
Greenheck models Vektor-H and Vektor-HS fans are thoroughly inspected, test run at the factory, and shipped on a
skid or packaged to minimize damage during shipment. The transportation carrier has the responsibility of delivering
all items in their original condition as received from the manufacturer. The individual receiving the equipment is
responsible for inspecting the unit for obvious or hidden damage and recording any damage on the bill of lading
before acceptance of the equipment. All claims (if necessary) shall be filed with the final carrier.
Unpacking
Verify that all required parts and the correct quantity of each item have been received, including accessory kit
containing 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
The Vektor-H and Vektor-HS laboratory exhaust system is shipped in subassembly sections for easy rigging and
installation. Depending on the fan size, the sections can include: Blower Assembly, Stack Extension, and Discharge
Nozzle.
The Vektor-H and Vektor-HS are designed to be self-supporting and standing (without the use of guy wires) when
assembled per the instructions provided within this manual. All subassembly sections have lifting lugs as shown.
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 and 110°F. (-1°C and 43°C). Wide temperature swings may cause condensation and “sweating” of
metal parts. All accessories must be stored indoors in a clean, dry atmosphere.
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 3-1/2 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
backcover.
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 coating should be restored to good condition promptly if signs of rust
Laboratory Exhaust System2
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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
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.
General Information
To ensure a successful installation, the instructions in this manual should be read and adhered to. Failure to comply
with proper installation procedures may void the warranty.
Unit and System Identification Tags
Each fan has a permanently affixed manufacturer’s engraved metal nameplate containing the model number and
individual serial number.
The tag shown is an example of an identification nameplate on the fan. The
information provides general details about the fan, as well as containing specific
information unique to the unit. When contacting your local manufacturer’s
representative with future needs or questions, please have the information on
this label available. Tags are mounted in an area which is clearly visible, usually
on the side of the fan cabinet.
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.
Prior to fully assembling and installing the Vektor-H or Vektor-HS fans, inspect bypass air plenums and the fan
assembly to make sure they are in working order.
Pre-Installation Information
Before installation, it is important to be certain the mounting surface will bear the operating weight of the unit. For
proper unit operation, it is also important that it be operated in a completely level position.
For further details on safety practices involving industrial and commercial fans, please refer to AMCA
Publication410.
Electrical Disconnects
All fan motors should have disconnects located in close visual proximity to turn off electrical service. Service
disconnects shall be locked-out when maintenance is being performed.
Moving Parts
All moving parts must have guards to protect personnel. Refer to local codes for requirements as to the number,
type and design. Fully secure fan wheel before performing any maintenance. The fan wheel may start “free wheeling”
even if all electrical power has been disconnected. Before the initial start-up or any restart, check the following items
to make sure that they are installed and secure.
• Do not spin fan wheel faster than the maximum cataloged fan rpm.
• Adjustments to fan speed significantly affects 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.
Guards (Motor Cover, Weatherhoods)
Do not operate fans without proper protective devices in place. Failure to do so may result in serious bodily injury
and property damage. Check local codes to ensure compliance for all protective devices.
Air Pressure and Suction
In addition to the usual hazards associated with rotating machinery, fans also create a dangerous suction at the inlet.
Special caution needs to be used when moving around a fan, whether it is in operation or not. Before start-up, make
sure the inlet area is clear of personnel and loose objects.
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Rigging and Lifting
The steel cone is to be lifted by the points at the top, separately and individually from the fan assembly.
Polyethylene nozzles do not have lifting points. If needed, attach polyethylene nozzle to fan or stack prior to lifting
and use component lifting points.
Fans and bypass air plenums (BAP) should be disassembled prior to lifting and lifted individually. Fans and BAP are
to be rigged and moved by the lifting points provided or by the skid when a forklift is used. Location of the brackets
varies by model and size. Handle in such a manner as to keep from scratching or chipping the coating. Damaged
finish may reduce the ability of the fan to resist corrosion. Spreader bars are recommended to prevent damage to
the unit. Failure to use spreader bars may result in damage which becomes the installer’s responsibility.
1. Before lifting, be sure that all shipping materials have been removed from the unit.
2. Use standard lifting and rigging practices.
3. All lifting brackets on each unit must be utilized at the same time.
4. Fan to be kept level during lifting and installation.
5. Spreader bars must span the unit to prevent damage to the unit by the lifting cables.
6. Always test-lift the unit to check for proper balance and rigging before hoisting to desired location.
7. Never lift unit in windy conditions.
8. Preparation of roof opening should be completed prior to lifting the unit onto the roof.
9. Use well-padded chains to protect the unit from damage.
Vektor-H
Unit Assembly Lifting Lugs
Belt Drive
Sizes 9-12
Belt Drive
Sizes 13-36
Unit
Assembly
Lifting Lugs
(each side)
Direct Drive
Lift as an assembly with all
four (4) lifting lugs.
Image shows if motor and wheel
assembly needs to be removed.
Vektor-HS with VGN Technology
Nozzle
Lifting Points
Nozzle
Lifting Points
Nozzle sizes 13-36
Bypass Air Plenum
Sizes 9-22
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Unit
Assembly
Lifting Lugs
3x1 Fan System with Bypass Air Plenum
Sizes 9-13, 18-36
®
Rigging and Lifting (continued)
A A
VEKTOR ROOF CURB INSTALLATION GUIDE
Install 3/8 inch (9.525 mm) SS power wedge bolts
2.5 inch (63.5 mm) maximum spacing from curb corners
4.5 inch (114.3 mm) maximum bolt spacing
3.5 inch (88.9 mm) minimum embedment
4.5 inch (114.3 mm) minimum edge
distance centered in flange
ALL HARDWARE BY OTHERS
Greenheck Roof Curb GPFHL/GPFHD Greenheck Roof Curb GPFHL/GPFHD
Install 3/8 inch (9.525 mm) SS lag or thru-bolt with
1 inch (25.4 mm) O.D. washer
2.5 inch (63.5 mm) maximum spacing from curb corners
4.5 inch (114.3 mm) maximum bolt spacing
3.5 inch (88.9 mm) minimum tread engagement,
not including tapered tip
2 inch (50.8 mm) minimum edge distance,
centered in flange
Pre-drill holes 40-60% of lag diameter
ALL HARDWARE BY OTHERS
STEEL CONCRETE
WOOD
A A
WOODEN STRUCTURAL SUPPORT
(BY OTHERS, SEE NOTE ABOVE)
Greenheck Roof Curb GPFHL/GPFHDGreenheck Roof Curb GPFHL/GPFHD
Install 3/8 inch (9.525 mm) SS lag or thru-bolt with
1 inch (25.4 mm) O.D. washer
2.5 inch (63.5 mm) maximum spacing from curb corners
4.5 inch (114.3 mm) maximum bolt spacing
3.5 inch (88.9 mm) minimum tread engagement,
not including tapered tip
2 inch (50.8 mm) minimum edge distance,
centered in flange
Pre-drill holes 40-60% of lag diameter
ALL HARDWARE BY OTHERS
WOOD
Roof Curb and Mounting Details
Unit Lifting Points
Fan
Size Quantity Placement
Belt – 9-12 2
Inside fan body, on top of belt
tube
Belt – 13-36 2 Exterior of fan body
Outside of core and outside of
Direct – All 4
fan body, All (4) to be used to
“balance” the lift.
Bypass Air Plenum (BAP)
Size Quantity Placement
1x1 – 9-22 2 Opposite sides of plenum
1x1 – 24-36 4 Two on each end of plenum
2x1 – 9-16 2 Opposite sides of plenum
2x1 – 18-36 4 Two on each end of plenum
3x1 – 16 2 Opposite sides of plenum
3x1 – 9-13, 18-36 4 Two on each end of plenum
NOTE
Steel, concrete or wood roof support is per structural
engineer and in accordance with load requirements
and applicable building codes.
The figures below illustrates three common methods
used to install Vektor systems. Methods used to attach
a Vektor unit are dependent on local codes, roof
construction design and roof construction materials.
Consult an architect or structural engineer for proper
means of attachment.
Steel
Continuous weld or stitch weld.
Minimum 6 inch (152.4 mm) stitch weld by
3.25 inch (82.5 mm) spacing minimum.
Minimum 6 inch (152.4 mm) weld on each corner.
OR
Install 5/16 inch (7.9375 mm) 24 Dril-Flex® Self-Drilling
Tapping Screws. 3/16 inch (4.7625 mm) minimum thread
engagement into A36 steel, centered in flange.
4.5 inch (114.3 mm) spacing
5/8 inch (15.875 mm) minimum edge distance
ALL HARDWARE BY OTHERS
STEEL STRUCTURAL SUPPORT
(BY OTHERS, SEE NOTE ABOVE)
Greenheck Roof Curb GPFHL/GPFHD
Concrete
Greenheck Roof Curb GPFHL/GPFHD
Install 3/8 inch (9.525 mm) SS power wedge bolts
2.5 inch (63.5 mm) maximum spacing from curb corners
4.5 inch (114.3 mm) maximum bolt spacing
3.5 inch (88.9 mm) minimum embedment
4.5 inch (114.3 mm) minimum edge
distance centered in flange
ALL HARDWARE BY OTHERS
CONCRETE STRUCTURAL SUPPORT
(BY OTHERS, SEE NOTE ABOVE)
Wood
Install 3/8 inch (9.525 mm) SS lag or thru-bolt with
1 inch (25.4 mm) O.D. washer
2.5 inch (63.5 mm) maximum spacing from curb corners
4.5 inch (114.3 mm) maximum bolt spacing
3.5 inch (88.9 mm) minimum tread engagement,
not including tapered tip
2 inch (50.8 mm) minimum edge distance,
centered in flange
Pre-drill holes 40-60% of lag diameter
ALL HARDWARE BY OTHERS
WOODEN STRUCTURAL SUPPORT
(BY OTHERS, SEE NOTE ABOVE)
Greenheck Roof Curb GPFHL/GPFHD
Laboratory Exhaust System 5
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