Greenheck Fan Ventilation Hood Vektor H User 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 instructions could result in personal injury and/or property damage!

Vektor^®-H

Vektor^®-HS

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.

Table of Contents

General Safety Information . . . . . . . . . . . . . . . . . . . . . .1

Receiving / Unpacking / Handling / Storage. . . . . . .2

Inspection and Maintenance during Storage. . . . . . .2

Removing from Storage. . . . . . . . . . . . . . . . . . . . . . .3

General Information

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.

Unit and System Identification. . . . . . . . . . . . . . . . . .3

Pre-Installation Information . . . . . . . . . . . . . . . . . . . .3

Electrical Disconnects . . . . . . . . . . . . . . . . . . . . . . . .3

Moving Parts / Guards. . . . . . . . . . . . . . . . . . . . . . . .3

Air Pressure and Suction . . . . . . . . . . . . . . . . . . . . . .3

Lifting Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Roof Curb and Mounting Details . . . . . . . . . . . . . . . . .4

Duct Installation - Bottom Inlet . . . . . . . . . . . . . . . . . .5

Side or End . . . . . . . . . . . . . . . . . . .5

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.

Stack Extensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

System Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Kitchen Roof Mounting Installation. . . . . . . . . . . . . . . .6

Plenum Drainage Piping and Trap Detail . . . . . . . . . . .7

Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . .7

Variable Frequency Drive . . . . . . . . . . . . . . . . . . . . . . .8

Pre-Start-Up Checks. . . . . . . . . . . . . . . . . . . . . . . . . . .8

Maintenance

Belts / Fasteners and Set Screws . . . . . . . . . . . . . . .9

Motors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Fan Shaft Bearings . . . . . . . . . . . . . . . . . . . . . . . . . .9

Bearing Relubication Schedule . . . . . . . . . . . . . . . .10

Vektor-HS Nozzle Bearings . . . . . . . . . . . . . . . . . . .10

Damper Actuators . . . . . . . . . . . . . . . . . . . . . . . . . .10

Parts List and Assembly . . . . . . . . . . . . . . . . . . . . . . .11

Maintenance Log. . . . . . . . . . . . . . . . . . . . . . Backcover

Our Commitment. . . . . . . . . . . . . . . . . . . . . . Backcover

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.

Vektor^®-H and Vektor^®-HS Laboratory Exhaust System

REMOVING FROM STORAGE

Electrical Disconnects

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.

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.

Prior to assembly and installation of the Vektor fan and

system components, inspect the fan assembly to make

sure it is in working order.

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.

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.

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cataloged fan rpm.

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load. If the fan RPM is changed, the motor current

should be checked to make sure it is not exceeding

the motor nameplate amps.

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.

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.

Unit and System Identiﬁcation Tags

Each fan has a permanently afﬁxed manufacturer’s

engraved metal nameplate containing the model

number and individual serial number.

Air Pressure and Suction

The tag shown

is an example of

an identiﬁcation

nameplate on the

fan. The information

provides general

details about

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.

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 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

Publication 410.

Laboratory Exhaust System

Lifting Information

Roof Curb and Mounting Details

CAUTION

NOTE

The cone is to be lifted by the cone lifting lugs,

separately and individually from the fan assembly.

Steel, concrete or wood roof support is per structural

engineer and in accordance with load requirements

and applicable building codes.

Vektor-H

Cone

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.

Lifting Lugs

Cone

Steel

Greenheck Roof Curb GPFHL/GPFHD

Unit

Assembly

Lifting Lugs

Fan

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.

Bypass

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

Air

Plenum

Single Fan System

without Bypass Air Plenum

Single Fan System

with Bypass Air Plenum

5/8 inch (15.875 mm) minimum edge distance

ALL HARDWARE BY OTHERS

STEEL STRUCTURAL SUPPORT

(BY OTHERS, SEE NOTE ABOVE)

Cone

Lifting Lugs

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

Unit

Assembly

Lifting Lugs

distance centered in ﬂange

ALL HARDWARE BY OTHERS

CONCRETE STRUCTURAL SUPPORT

(BY OTHERS, SEE NOTE ABOVE)

Multiple Fan System with Bypass Air Plenum

Vektor-HS with SAVVE Technology

Cone

Lifting Lugs

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

Unit

Assembly

Lifting Lugs

WOODEN STRUCTURAL SUPPORT

(BY OTHERS, SEE NOTE ABOVE)

Laboratory Exhaust System

Duct Installation

System Assembly

Bottom Inlet Duct Connection

NOTE

The end of the duct (customer-supplied) is secured

between the roof curb’s top edge and the curb cap of

either the Vektor-H or bypass air plenum. If an isolation

damper is present in the roof curb, the duct is located

between the roof curb and the damper adapter tray.

When installing each section, be certain to rig each

section separately using the lifting lugs provided.

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Vektor-H or Vektor-HS

Roof Curb

Duct

Bolt and Washer

Detail

Gasket

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Vektor-H

Adapter Tray

Isolation Damper

Duct

5/16 inch self-tapping screws

Gasket

Duct Connection to Curb

5/16 inch self-tapping screws

Gasket

Side or End Duct Connection

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NOTE

1. Mount roof curb to roof deck in accordance with

local codes.

Plenum is provided with removable side or end

panels, allowing the proper duct connection.

2. Install 3/16-inch thick x 1/2-inch wide, closed-cell

gasket on the top edge of the curb, adhesive side

down (gasket provided). Leave no gaps between

gasket sections to ensure tight seal.

Duct ﬂange and

gasketing by

others

Bypass Air

Plenum

3. Place the bypass air plenum (BAP) onto the

previously installed gasket and secured roof curb.

If a BAP is not provided for the unit, skip to Step 5.

Pre-drill pilot holes into the roof curb and attach the

BAP to the roof curb with mounting hardware (by

others).

4. Install 3/16-inch thick x 1/2-inch wide, closed-cell

gasket on the top edge of BAP, adhesive side down

(gasket provided). Leave no gaps between gasket

sections to ensure a tight seal.

Roof Curb

Duct to Bypass Air Plenum

5. Place the curb cap of the fan housing onto the

gasket and BAP or onto roof curb if BAP is not

provided. Attach the curb cap using the provided

5/16-inch self-tapping screws. If a BAP is not

provided, pilot holes must be drilled into the roof

curb.

Stack Extensions

Systems with multiple stack extensions require all

sections assembled and installed on site between the

main fan body and the discharge cone. Each section

has guy wire attachment brackets located on the upper

end of each section. The order sections are installed

in are universal. Gasketing (3/16 x 1/2 inch with sticky

back) is provided and is to be installed between each

joining section.

6. Install the ﬁnal nozzle subassemblies as shown in the

submittal drawing. Align ﬂange bolt holes and fasten

sections using the 316 stainless steel bolts, washers,

and lock washers provided.

Guy wires are required on system with multiple stack

extensions. Location of connections, wiring and

anchorage is determined by a structural engineer.

7. Follow electrical connection and pre-start-up checks

as listed on pages 7 and 8.

Laboratory Exhaust System

Kitchen Roof Mounting Installation

UL/cUL 762 installation are for restaurant applications.

1. The size of the duct must be equal to the inlet

opening.

2. Secure the fan to curb at all four corners using a

minimum eight anchor bolts, lag screws or other

suitable fasteners.

3. Use optional grease trap and external junction box.

4. Area codes may require a continuous weld between

duct and inlet.

5. To comply with NFPA 96, the discharge is required

to be a minimum of 40 inches (1016 mm) above the

roof deck and a minimum of 10 ft. from any building

air intake. The minimum velocity in the duct should

be 500 ft/min. or greater.

6. Ductwork to an upblast discharge exhaust fan is

constructed of carbon steel not less than 16 MSG

(1.6 mm) and extends a minimum of 18 inches

(457 mm) above the roof surface.

7. Ensure that a minimum of 500 ft/min. of air velocity

through the fan is maintained per NFPA 96,

clause 8.2.1.1, 2008 edition and UL 762, Issue #5,

December 19, 2003, clause 6.2.

Grease Trap

A grease trap is an aluminum trap designed to collect

grease residue to avoid drainage onto roof surface. It

contains a built-in water separating bafﬂe.

Grease

Trap

Instructions

1. Apply cover to grease trap. Install clip nuts to trap

over holes provided. Attach cover with two #10 - 24

x 1/2 fasteners.

Welded duct

by others.

2. Position the container under the grease drain so the

drain spout enters the cover approximately 1¹⁄2 to

2 in. (38-51 mm).

3. Locate and mark the container mounting holes on

the extended base or roof curb.

Grease

Trap

Roof Curb

Minimum of

18 inches

(457 mm)

above roof

deck per

NFPA.

Roof Deck

4. Drill 3/16 in. (5 mm) diameter holes in marked

locations.

Typical Commercial Kitchen Installation

5. Apply container with #10 - 24 x 3/4 fasteners.

WARNING

6. For most climates, ﬁll container with water (at

installation and after each cleaning) until it ﬂows out

the drain hole. The unit is now ready for use.

In a kitchen exhaust application, do not use a speed

control or isolation damper.

NOTE

Maintenance

Regular inspection of grease trap is recommended.

Depending on the amount of grease discharged through

the fan, the grease trap should be changed accordingly

to ensure proper operation.

In a kitchen fan and high temperature applications

exhaust upblast fans must have external wiring.

Laboratory Exhaust System

for compatibility with the fan motor. In addition, the

supply wiring must be properly fused and conform to

local and national electrical codes. If the unit is supplied

with a safety disconnect switch, ensure proper wiring

to the fan motor. Be sure the disconnect is switched to

the “OFF” position before connecting supply wires. If

no disconnect is supplied, ensure the supply wire is not

live before connection. Supply wires are then connected

to the optional safety disconnect switch (if supplied) or

motor.

Plenum Drainage Piping / Trap

Detail (By Others)

Fan Drain

Connection

Plenum Drain

Connection

Vektor-H Motor Disconnect and Isolation Damper

Wiring Diagram

Disconnect is mounted to fan housing. Transformers are

mounted to bypass air plenum with damper actuator

motors. For systems that ship unassembled because

of physical size, this connection at disconnect from

transformers must be ﬁeld-installed. Wires with conduit

and ﬁttings are provided pre-connected to transformers.

There is a location for a pipe connection on each tubular

fan housing and bypass air plenum. Each drain may

need to be connected to a drainage system to ensure

proper disposal of any water or condensate that may

occur.

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Single Phase Layout

for drainage

LINE IN

Field Wiring

Factory Wiring

115/208/230/277 volt, single phase

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Disconnect is mounted to fan housing

Note: A conservative method of trap design is to set N

= total static pressure.

DISCONNECT

115/208/230/277 volt

Optional transformer and isolation damper, refer to CAPS ﬁle selection

Single phase

Positive Pressure Trap on Tubular Fan Housing

TRANSFORMER

1.25 inch

208/230/277 volt, single phase

Connect

minimum

Transformers must be wired independent

from VFD control.

this end

MOTOR

24/115 volt, single phase

to fan drain.

isolation damper actuator motor

power open/spring close

115/208/230/277 volt

Single phase

H/2

FAN OFF

H/2

Three Phase Layout

FAN ON

LINE IN

Field Wiring

208/230/460/575 volt, three phase

Factory Wiring

N = Negative fan pressure (inches W.C.)

H = N - (0.5 inches minimum)

Disconnect is mounted to fan housing

DISCONNECT

208/230/460/575 volt

Three phase

Optional transformer and isolation damper, refer to CAPS ﬁle selection

Negative Pressure Trap on Bypass Air Plenum

1.25 inch minimum

TRANSFORMER

208/230/460/575 volt, single phase

Transformers must be wired independent

from VFD control.

MOTOR

24/115 volt, single phase

isolation damper actuator motor

power open/spring close

208/230/460/575 volt

60 cycle, three phase

H/2

FAN OFF

FAN ON

Three Phase with

Variable Frequency Drives Layout

N = Negative fan pressure (inches W.C.)

H = N - (0.5 inches minimum

LINE IN

Field Wiring

Factory Wiring

208/230/460/575 volt, three phase

VFD

supplied and wired

by others

Electrical Connections

Disconnect is mounted to fan housing

DISCONNECT

208/230/460/575 volt

Three phase

NOTE

Optional transformer and isolation damper,

refer to CAPS ﬁle selection

Refer to the Vektor-HS SAVVE controls

TRANSFORMER (if required)

208/230/460/575 volt, single phase

Installation, Operation and Maintenance Manual

for electrical wiring and connection information.

Transformers must be wired independent

from VFD control.

MOTOR

24/115 volt, single phase

isolation damper actuator motor

power open/spring close

Before electrical connections are made, the supply

voltage, phase and ampere capacity must be checked

208/230/460/575 volt

60 cycle, three phase

Laboratory Exhaust System

Vektor-H Applications with Variable

Frequency Drive (VFD)

Pre-Start-Up Checks

Check all fasteners for tightness.

Check radial gap, overlap and wheel alignment. The

wheel should be aligned as shown. Although the wheel

position is preset and the unit is test run at the factory,

movement may occur during shipment.

For Vektor systems with single-point, three-phase

wiring per blower, the isolation damper actuator will be

powered via a step-down transformer, which is wired to

the fan disconnect, as shown in the wiring diagrams on

page 7.

The radial gap should be consistent at all locations

between the centrifugal wheel and the inlet cone.

Centering may be accomplished by loosening the inlet

cone bolts and repositioning the inlet cone.

If fan ﬂow (motor speed) is to be controlled using a

variable frequency drive with this wiring, the reduced

voltage and frequency supplied to the fan will cause

control problems with the isolation damper actuator.

To obtain the optimum performance, the centrifugal

wheel must overlap the inlet

cone. Adjustments can be

made by loosening the set

screws in the wheel and

When a project’s 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.

Wheel

Inlet

Cone

moving the wheel to the

Overlap

desired position.

NOTE

Radial Gap

Wheel rotation should

For Vektor-HS fans provided from the factory with

a VFD, refer to the Vektor-HS SAVVE controls

Installation, Operation and Maintenance Manual

for electrical wiring and connection information.

be in the same direction

as the rotation decal afﬁxed to the unit. (Clockwise

rotation is correct as viewed from fan inlet). For 3-phase

installations, fan rotation can be reversed by simply

interchanging any two of the three electrical leads. For

single phase installations, follow the wiring diagram

located on the motor.

NOTE

Any increase in fan speed represents a substantial

increase in horsepower required from the motor.

Always check motor load amperage and compare to

nameplate rating when changing fan speed.

Inlet Cone to Backplate

Unit

A Dimension

Tolerance (in.)

A Dimension

Tolerance (mm)

Size

3 3/16

1/8

3/16

1/4

3/8

3 7/16

102

113

138

162

198

219

268

324

4 7/16

5 7/16

6 3/8

7 13/16

8 5/8

10 9/16

12 3/4

Radial Gap is adjusted by loosening the inlet cone

bolts and centering the cone 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 or offset, is adjusted by loosening the wheel

hub from the shaft and moving the wheel to the desired

position along the shaft. The transition between the inlet

cone and wheel should be as shown; there is a smooth

feel to the proﬁle when moving from one component to

the other.

Laboratory Exhaust System

Maintenance

Motors

WARNING

Many fractional horsepower motors installed on the

smaller fans are lubricated for life and require no further

attention. Motors supplied with grease ﬁttings should be

greased according to directions printed on the motor.

Disconnect all electrical power to the fan and secure

to the ‘OFF’ position prior to inspection or servicing.

Failure to comply with this safety precaution could

result in serious injury or death.

Removal of Dust and Dirt

Once the fan has been put into operation, a periodic

maintenance program should be set up to preserve

the reliability and performance of the fan. Items to be

included in this program are:

Dirt clogs cooling openings on the motor housing,

contaminates bearing lubricant, and collects on the

impeller causing severe imbalance if left unchecked.

The exterior surface of the motor and impeller should be

thoroughly cleaned periodically. Use caution and do not

allow water or solvents to enter the motor or bearings.

Under no circumstances should motors or bearings be

sprayed with steam or water.

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Belts

Fan Shaft Bearings

Premature belt failures are frequently caused by

improper belt tension (either too tight or too loose) or

misaligned pulleys. The proper tension for operating a

V-belt is the lowest tension at which the belts will not

slip at peak load conditions. For initial tensioning, the

proper belt deﬂection

The bearings for Greenheck fans are carefully selected

to match the maximum load and operating conditions

of the speciﬁc class, arrangement, and fan size. The

instructions provided in this manual and those provided

by the bearing manufacturer will minimize any bearing

problems. Bearings are the most critical moving part

of the fan; therefore, special care is required when

mounting them on the unit and maintaining them.

Locking collars and set screws, in addition to fasteners

attaching the bearing to the bearing plate must be

checked for tightness. Greenheck Fan Corporation

recommends bearings to be relubricated quarterly at a

minimum. All Vektor-H and Vektor-HS fans use Mobil

Mobilith SHC 100 synthetic grease conforming to

NCGI Grade 2. Never mix greases made with different

bases as 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.

Belt Span

Deﬂection =

half-way between pulley

centers is 1/64 inch for

each inch of belt span.

For example, if the belt

span is 64 inches, the

belt deﬂection should be

one inch using moderate

thumb pressure at

midpoint of the drive.

Belt Span

Belt Tension

Check belt tension two times during the ﬁrst 24 hours

of operation and periodically thereafter. To adjust belt

tension, simply loosen four fasteners (two on each side

of the motor plate) and slide the motor plate away from

the fan shaft until proper belt tension is attained. On

some fans, fasteners attaching the motor to the motor

plate must be loosened in order to adjust

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dirt or excessive vibration, consult the factory for a

speciﬁc lubrication interval for your application.

the belt.

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It is very important that the drive

pulleys remain in proper alignment

after adjustments are made.

Misalignment of pulleys will result

in premature belt wear, noise,

vibration and power loss.

synthetic grease conforming to NLGI Grade 2.

tꢀ 5IFꢀVTFꢀPGꢀOPOꢁTZOUIFUJDꢀHSFBTFꢀXJMMꢀEFDSFBTFꢀ

lubrication intervals by approximately 3 times.

tꢀ 4UPSBHFꢀQFSJPETꢀPGꢀꢆꢀNPOUITꢀPSꢀMPOHFSꢀSFRVJSFꢀ

monthly rotation of the shaft and purging grease

prior to storage and start-up.

Belt

Alignment

Fasteners and Set Screws

A periodic inspection should include checking all

fasteners and set screws for tightness. Particular

attention should be paid to set screws attaching the

wheel to the shaft.

Laboratory Exhaust System

Recommended Bearing Lubrication Schedule

Relubrication Schedule in Months*

Fan Size

9 - 13

16 - 22

30 - 36

Bearing Bore (inches)

Fan

RPM

⁄

- 1

1¹⁄8 - 1¹⁄2

1⁵⁄8 - 1⁷⁄8

1¹⁵⁄16 - 2³⁄16

to 250

500

750

1000

1250

1500

2000

2500

3000

3500

4000

5000

0.75

0.5

Number

of shots of

grease**

* Lubrication interval is based on 12 hour per day operation and

maximum 160°F. housing temperature. For 24 hour per day

operation, the interval should be cut in half.

** Lubricant should be added with the shaft rotating and until clean

grease is seen purging from the bearing. The lubrication interval

may be modiﬁed based on the condition of the purged grease.

If bearing is not visible to observe purged grease, lubricate with

number of shots indicated for bore size.

Vektor-HS Nozzle Bearings

The bearings for the HS nozzle assembly are

permanently lubricated and do not require additional

grease.

Damper Actuators

Damper actuators, when supplied by manufacturer,

are designed to be maintenance free. No lubrication is

required.

Laboratory Exhaust System

Vektor-H and Vektor-HS Exhaust Fan Parts List and Assembly

Each fan bears a manufacturer’s nameplate with model number and serial number embossed. This information in

addition to the parts list shown, will assist the local Greenheck representative and the factory in providing service

and replacement parts.

Side View

Top View

Bearing Support

Belt

Belt Tube

Shaft Pulley

Motor

Pulley

Motor Cover

(optional)

Bearing Cover

Bearings

Shaft

Motor

Inlet Cone

(venturi)

Wheel

Motor Mounting

Plate

Vektor-HS Nozzle Parts List and Assembly

Item Quantity

Description

Transition Weld

Transition side cover

Wind wrap round

Wind wrap flat

Frame bottom bar

Frame top bar

Frame weld

Blade weld

1 or 2*

Actuator mount

Lifting lug

1 or 2*

Actuator cover

Blade seal, right

Blade seal, left

Flex backing

Vektor backing

Actuator

1 or 2*

Electrical box

Bearing

Blade seal

Flex seal

*Quantity 1 for sizes 9 thru 13

Quantity 2 for sizes 16 thru 36

Laboratory Exhaust System

Maintenance Log