Greenheck Vektor -MH Installation Manual
Document 464652
®
Model Vektor
®
-MH, Vektor ®-MD
and Vektor
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 instructions could result in personal injury and/or property damage!
Vektor-MH, Vektor-MD, and Vektor-MS
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.
Table of Contents
General Safety Information ......................1
Receiving / Unpacking / Handling / Storage .....2-3
General Information
Unit and System Identification ..................3
Pre-Installation Information ....................3
Electrical Disconnects / Moving Parts / Guards ....3
Air Pressure and Suction ......................3
System Components .........................4-5
Roof Curb and Mounting Details .................5
Bypass Air Plenum
Rigging, Lifting and Installation ...............6-7
Fan Housing
Rigging, Lifting and Installation ...............6-7
Nozzle, Windband, Silencer, Weatherhood ........8
Duct Connections - Side Inlet ...................9
Bottom Inlet .................9
Plenum Drainage Piping / Trap Detail ..............9
Bypass Air Plenum - Isolation Damper and
Actuator Mounting ..........................10
Field Coating Touch-Up .......................10
Electrical Connections ........................11
Start-Up ....................................12
Vibration ...................................13
Routine Maintenance
Fan / V-Belt Drive / Motors / Bearings / Nozzle 14-15
V-Belt Drive Installation ........................15
Bearing Replacement - Belt or Direct Drive .....16-17
Jib Crane Assembly (Optional) ..................17
Motor Change-Out Procedure ..................18
High Strength Metal Disc Coupling. . . . . . . . . . . . . . .18
Troubleshooting ..............................19
Nozzle Parts and Assembly .............Backcover
Our Commitment ......................Backcover
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.
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 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
Precaution should be taken in explosive atmospheres.
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-MS
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Laboratory Exhaust Systems
1
Receiving
Greenheck model Vektor-MH, Vektor-MD and Vektor-MS
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 Greenheck. 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-MH, Vektor-MD and Vektor-MS 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-MH, Vektor-MD and Vektor-MS are designed
to be self-supporting and standing (without the use
of guy wires) when assembled per the instructions
provided within this manual. If additional components
are supplied, contact factory or reference submittal
if additional supports or guy wires are required. 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° 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 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
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. Bearings should be lubricated at three month
intervavls. The quantity of grease should be per the
lubrication label.
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 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.
Laboratory Exhaust Systems
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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.
3. Ensure proper wheel settings for radial gap and
alignment (see page 18).
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 Greenheck
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 VektorMH, Vektor-MD or Vektor-MS 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,
Actuator Cover)
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.
Plenum Access Doors
Before opening access doors, ensure the fan wheel has
stopped moving and that the wheel has been secured
from being able to rotate. Do not operate fan without
access door in its fully closed position.
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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Laboratory Exhaust Systems
3
System Components
Vektor-MH Assembly View - Belt Drive
Belt and direct drive units share similar system
components and assembly configuration.
Nozzle
Blower Housing
Bypass Air Plenum
Roof Curb or
Structural Support
Vektor-MD Assembly View - Direct Drive
Belt and direct drive units share similar system
components and assembly configuration.
Windband
Nozzle
Blower Housing
Bypass Air Plenum
Roof Curb or
Structural Support
Motor Cover
Lifting Lug
Motor Cover/Access
Isolation Damper
Isolation Damper
Actuator Cover
Weatherhood
with Birdscreen
Bypass Damper
Actuator Access Door
Access Panel
Bolted / Gasketed
(all sides)
Blower Housing
Access Door
Panel Lifting
Lugs
NOTE
Actual component pieces may vary from these
images. Refer to your project submittal drawing.
Fan
Shaft
Direct Drive
Isolation Damper
Isolation Damper
Actuator Cover
Weatherhood
with Birdscreen
Bypass Damper
Actuator Access Door
Motor
Flex Coupling
Shaft Bearing
Drain
Blower Housing
Access Door
Panel
Lifting
Lugs
Access Panel
Bolted / Gasketed
(all sides)
Laboratory Exhaust Systems
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®
Vektor-MS Assembly View - Direct Drive
Belt and direct drive units share similar system
components and assembly configuration.
SAVVE Nozzle
Blower Housing
NOTE
Steel, concrete or wood roof support is per structural
engineer and in accordance with load requirements
and applicable building codes.
Refer to stand-alone Vektor Roof Curb Assembly
Instruction found on greenheck.com within the
Laboratory Exhaust section. Chose applicable product
model.
The figures 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.
Blower Housing
Isolation Damper
Isolation Damper
Actuator Cover
Weatherhood
with Birdscreen
Bypass Damper
Actuator Access Door
Access Door
Bypass Air Plenum
Roof Curb or
Structural Support
Access Panel
Bolted / Gasketed
(all sides)
Panel
Lifting
Lugs
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
Concrete
Greenheck Roof Curb
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
Greenheck Roof Curb
Roof Curb and Mounting Details
®
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)
Laboratory Exhaust Systems
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Bypass Air Plenum - Rigging,
Lifting and Installation
Prior to lifting any components, verify the weights on
the project submittal drawings for each component
or contact factory. Do not lift weights beyond the
capacities of the on-site lifting equipment. Proper
handling of the equipment is critical to avoid damage to
the unit.
Prior to setting the bypass air plenum (BAP), secure
1/4-inch thick by 3/4-inch wide EPDM gasket (provided)
around the perimeter of the roof curb top edge, if
mounting on a roof curb.
Bypass Air Plenum - Rigging and Lifting
Each section
will have four
(4) lifting points.
All lifting points
must be used
when lifting.
Spreader bars
of sufficient
length need to be used to
prevent damage to BAP walls and
components mounted to the BAP.
1. Always use all lifting lugs provided by
manufacturer. Lifting lugs are located around the
perimeter of each section.
2. A spreader bar must be used when lifting each
section to distribute the weight evenly and to
prevent the unit from being over-torqued. Avoid
unnecessary jarring or rough handling.
Chains
Spreader Bar
Lifting PointsLifting Points
Bypass Air Plenum Installation
Bypass air plenums (BAP) are delivered fully assembled
unless shipping restrictions require multiple sections.
If delivered in sections, all materials required to join
plenum sections together are provided.
Bypass air plenums are modular in construction and can
be disassembled to provide allowances for lower on-site
lifting capacities. Plenum sections are joined using
stainless steel fasteners. These are removed to separate
sections for lifting purposes. Save hardware as these
will be required to join the BAP sections together again.
If moving separate sections onto a roof curb or support
structure, each section should be joined to its mating
section after moving into position and before lifting any
additional section(s) into position.
Steps for joining multiple BAP sections together:
1. Lift / place first BAP section making sure that
mounting holes are positioned with curb mounting
holes or to structure BAP will be secured.
2. Attached provided gasket to plenum section using
the pattern shown in the image.
3. Ensure bolts are removed from both mating
sections to being joined together. Plenum will ship
with hardware in one section’s bolt holes or were
removed to disassemble BAP to reduce lifting load.
4. Lift / place next section into position using similar
lifting procedure.
5. Align holes between two mating sections.
6. Use fasteners (provided) to join the two sections
together, this will involve utilizing the nutserts in
each section on the inside perimeter. The fasteners
are tightened until the sections are pulled together
and the gasket material is compressed.
7. Caulk joint (provided) on the top and two sides
between sections for enhanced water protection.
8. Repeat steps 1 – 7 until all plenum sections are
lifted and joined together.
Any side panels removed to gain access to the interior
of the plenum should be reattached.
Plenums may be single sections or up to six in length
Two fan bypass air plenum shown.
3. Care must be taken to keep the unit in the upright
position during rigging.
4. Care must be taken to not damage the watertight
seams in the unit casing.
5. Avoid damage to the curb and curb gasketing when
rigging onto a curb.
6. Only use trained professional riggers when moving
equipment.
Laboratory Exhaust Systems
6
Plenum Section
Gasket Material
each plenum section
Bolt Holes
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