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Fume Exhaust Fans

2

Receiving

Upon receiving the product, check to ensure all items 
are accounted for by referencing the delivery receipt or 
packing list. Inspect each crate or carton for shipping 
damage before accepting delivery. Alert the carrier 
of any damage detected. The customer will make 
a notation of damage (or shortage of items) on the 
delivery receipt and all copies of the bill of lading which 
is countersigned by the delivering carrier. If damaged, 
immediately contact your Venco representative. Any 
physical damage to the unit after acceptance is not the 
responsibility of manufacturer.

Unpacking

Verify that all required parts and the correct quantity 
of each item have been received. 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

Fans are to be rigged and moved by the lifting brackets 
provided or by the skid when a forklift is used. Location 
of 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. Fans should never be lifted by 
the stack, shaft, motor, motor cover, weatherhood or 
accessories.

Storage

•  Rotate fan wheel monthly and purge bearings once 

every three months

•  Energize fan motor once every three months

•  Store belts flat to keep them from warping and 

stretching

•  Store unit in location which does not have vibration

•  After storage period, purge grease before putting fan 

into service.

If storage of fan is in a humid, dusty or corrosive 
atmosphere, rotate the fan and purge the bearings once 
a month. Improper storage which results in damage to 
the fan will void the warranty.

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° to 110°F 

(-1° to 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 remove 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 inches 

(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 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 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.

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 in 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 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. Thoroughly wipe clean 

Содержание VJC-200

Страница 1: ...ny stationary objects 3 Motor must be securely and adequately grounded 4 Do not spin fan wheel faster than max cataloged fan RPM Adjustments to fan speed signi cantly effects motor load If the fan RPM...

Страница 2: ...e which is sealed to prevent the entry of blowing dust rain or snow Temperatures should be evenly maintained between 30 to 110 F 1 to 43 C wide temperature swings may cause condensation and sweating o...

Страница 3: ...age 2 3 Removing from Storage 3 General Information Unit and System Identification Tags 4 Pre Installation Information 4 Electrical Disconnects 4 Moving Parts 4 Guards Motor Cover Weatherhood 4 Access...

Страница 4: ...the fan cabinet 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 impo...

Страница 5: ...stallations Inlet Duct Turns Installation of a duct turn or elbow too close to the fan inlet reduces fan performance because air is loaded unevenly into the fan wheel To achieve full fan performance t...

Страница 6: ...epair section of this manual for details involving touch up of damaged surfaces Lift unit before mounting the stack to the fan body Use standard lifting and rigging practices ALL lifting brackets on e...

Страница 7: ...rate three common methods used to install roof curbs for fume exhaust systems Methods used to attach a unit are dependent on local codes roof construction design and roof construction materials Consul...

Страница 8: ...S equipment supports are designed for use on at roof decks to be mounted directly to the roof deck structure then roofed and ashed for weather tightness The orientation of the equipment support should...

Страница 9: ...osed Any increase in fan speed represents a substantial increase in load on the motor To avoid motor overheating and possible burnout motor load amperes should always be checked and compared to namepl...

Страница 10: ...ts 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 opti...

Страница 11: ...al number for colors other than our standard TOUCH UP PAINT REPAIR KIT CONTENTS One pint of Kem Kromik primer including a technical data sheet One pint of industrial enamel including a technical data...

Страница 12: ...ck all guarding to ensure that it is securely attached and not interfering with rotating parts 9 Check all electrical connections for proper attachment 10 Check housing and ductwork if accessible for...

Страница 13: ...e entire fan should be checked for tightness 3 Any dirt accumulation on the wheel or in the housing should be removed to prevent unbalance and possible damage 4 Inspect fan impeller and housing lookin...

Страница 14: ...cy Do not exceed maximum class fan rpm of the wheel Belt Span De ection Belt Span 64 Recommended Bearing Lubrication Schedule Relubrication Schedule in Months Standard Grease Fan RPM Bearing Bore inch...

Страница 15: ...e nozzle preset at the factory based on the order Depending on installed air performance this nozzle can be adjusted in the eld to accommodate the building situation To increase the exhaust velocity a...

Страница 16: ...ers procedures for removal and installation 3 Before removing the bearing bolts make sure the shaft is supported slightly Remember to consider the wheel weight on the shaft 4 Remove both bearings from...

Страница 17: ...ake certain unit is not capable of operation during repairs CAUTION La pr sence d un moteur antid flagrant sur un ventilateur ne garantit pas que tout l appareil est antid flagrant Pour conna tre les...

Страница 18: ...optional curb cap inlet box and inlet flanges Stack Motor Cover Disconnect Switch Motor Plate Motor Integrated Mounting Rails Access Door Curb Cap Isolation Damper Roof Curb Scroll Housing Inlet Cone...

Страница 19: ...system Use correction factor to adjust for temperature altitude Resize ductwork Clean lters coils Change fan speed High Motor Amp Draw Fan Check rotation of wheel Reduce fan speed Duct System Resize...

Страница 20: ...______ AM PM Notes __________________________________________ ________________________________________________ ________________________________________________ ________________________________________...

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