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Laboratory Exhaust Systems

®

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. 

Failure to inspect and maintain during storage 
may void the warranty.

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 fan 

bearings. 

Bearings should be lubricated at three 

month intervals. The quantity of grease should be 
per the lubrication label.

If paint deterioration begins, the affected areas should 
be touched-up and repainted. 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.

Receiving

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. Warranty period begins at the 
time of 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-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, Discharge Nozzle, and Bypass Air Plenum.

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 points 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.

Summary of Contents for Vektor-MH

Page 1: ...d 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 dis...

Page 2: ...inuity 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 Receiving 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 Warranty perio...

Page 3: ...perating weight of the unit and have adequate structural stiffness to inhibit structural resonance in the roof and supporting structure The supporting structural elements should be designed such that the first natural frequency is a minimum of 120 of the maximum operating speed of the fan and accounts for the inertia from the rotating fan rotor mass Weak or undersized structural soundness may impac...

Page 4: ...its share similar system components and assembly configuration Blower Housing High Plume Nozzle Bypass Air Plenum Roof Curb or Structural Support Bypass Damper Actuator Access Door Weatherhood with Birdscreen Isolation Damper Blower Housing Access Door Access Panel Bolted Gasketed all sides Isolation Damper Actuator Cover Motor Cover Access Weatherhood with Birdscreen Panel Lifting Points Isolation...

Page 5: ...em components and assembly configuration Bypass Damper Actuator Access Door Weatherhood with Birdscreen Isolation Damper Blower Housing Access Door Access Panel Bolted Gasketed all sides Isolation Damper Actuator Cover Panel Lifting Points Blower Housing VGN Nozzle Bypass Air Plenum Roof Curb or Structural Support ...

Page 6: ...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 Greenheck Roof Curb CONCRETE STRUCTURAL SUPPORT BY OTHERS SEE NOTE ABOVE Install 3 8 ...

Page 7: ...e 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 be...

Page 8: ...L lifting points on each component must be utilized at the same time Fan to be kept level during lifting and installation CAUTION Fans should never be lifted by the shaft motor motor cover or accessories Vektor MD sizes 40 and greater Vektor MH and MS all sizes Vektor MD sizes 36 and smaller Securing the Bypass Air Plenum After bypass air plenum BAP has been lifted into position plenum should be s...

Page 9: ...equire weatherhoods to be delivered separate from the BAP The weatherhood bolt hole pattern matches the side panel bolt pattern Use supplied hardware to secure the weatherhood to the BAP over the bypass air damper Nozzle Lifting and Installation for Vektor MH Using the nozzle lifting points place nozzle over blower discharge aligning support bracket holes with bolt holes in blower housing Attach n...

Page 10: ...tched for fitting around roof curb and plenum cross support members Plenum Drainage Piping Trap Detail By Others 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 Drain connections are 0 5 inch FNPT and 1 0 inch MNPT Installed piping ...

Page 11: ...um section The entire isolation damper assembly can be slid out through the opening All Vektor M systems are available with HCD isolation dampers to be utilized for low to high pressures Vektor M sizes 15 33 offer an additional option the VCD dampers for lower pressure systems To remove the VCD damper the actuator must first be removed from the front plate The HCD damper can be pulled out without r...

Page 12: ...lation damper refer to CAPS file selection Field Wiring Factory Wiring Three Phase with Variable Frequency Drives Layout LINE IN 208 230 460 575 volt three phase MOTOR DISCONNECT 208 230 460 575 volt Three phase VFD supplied and wired by others TRANSFORMER if required 208 230 460 575 volt single phase Transformers must be wired independent from VFD control 24 115 volt single phase isolation damper ...

Page 13: ... Check operation of isolation and bypass dampers if supplied for freedom of movement 10 Check all electrical connections for proper attachment 11 Check housing and ductwork if accessible for obstructions and foreign material that may damage the fan wheel 12 Fill drainage piping trap WARNING Disconnect and secure to the OFF position all electrical power to the fan prior to inspection or servicing F...

Page 14: ... to provide uniform drive loading Use a set of matched belts whenever possible Do not pry belts on or off the sheave Loosen belt tension until belts can be removed by simply lifting the belts 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 CAUTION When operating conditions of the fan are to be changed speed pr...

Page 15: ...using assists proper motor cooling Never wash down motor with high pressure spray Greasing of motors is only intended when fittings are provided Motors supplied with grease fittings should be greased in accordance with the manufacturer s recommendations When motor temperature does not exceed 104ºF 40ºC the grease should be replaced after 2000 hours of running time Fans have extended grease lines to ...

Page 16: ...ing damage and void the warranty 3 Align fan and motor sheaves with a straight edge or string and tighten 4 Place belts over sheaves Do not pry or force belts as this could result in damage to the cords in the belts 5 Adjust the tension until the belts appear snug Run the unit for a few minutes and allow the belts to set properly 6 With the fan off and disconnect locked out adjust the belt tension...

Page 17: ...sen bottom bearing Caulk seal may need to be broken around perimeter of flange housing and bottom support plate Use emery cloth to clean shaft and remove any burrs 5 Install second set of shaft collars flush with top of bottom support plate 6 Remove shaft collars on top support plate and finish removing bottom bearing 7 Install new bottom bearing in reverse of this procedure Remember to re install to...

Page 18: ...nd wrap round 4 2 Wind wrap flat 5 2 Frame bottom bar 6 2 Frame top bar 7 2 Frame weld 8 2 Blade weld 9 2 or 4 Actuator mount 10 4 Lifting point 11 2 or 4 Actuator cover 12 2 Blade seal right 13 6 Blade seal left 14 4 Flex backing 15 2 Vektor backing 16 2 or 4 Actuator 17 1 Electrical box 18 4 Bearing 19 4 Blade seal 20 2 Flex seal Quantity 2 for sizes 15 thru 24 Quantity 4 for sizes 27 thru 40 ...

Page 19: ...temperature altitude Adjust set point used to control BAP damper modulation Resize ductwork Clean filters coils Change fan speed High Motor Amp Draw Fan Check rotation of wheel Reduce fan speed Duct System Resize ductwork Check proper operation of isolation and bypass dampers Check filters and access doors Fan Doesn t Operate Electrical Supply Check fuses circuit breakers Check for switches turned o...

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