background image

Fume Exhaust Fans

1

Document 482900

Model VJC-200, 300

Model VJI

Fume Exhaust Fans

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.

General Safety Information

Only qualified personnel should install this fan. 
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 seismic activity 
is 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) and the National 
Fire Protection Agency (NFPA), where applicable. 
Follow the Canadian Electric 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 max 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, 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.

DANGER

Pour écarter les risques d’incendie, de choc électrique 
ou de blessure grave, veiller à toujours débrancher, 
verrouiller et étiqueter la source de courant avant 
l’installation ou l’entretien.

ATTENTION

Lors de toute intervention sur la soufflante, le moteur 
peut être suffisamment chaud pour provoquer une 
douleur voire une blessure. Laisser le moteur refroidir 
avant toute maintenance.

ATTENTION

Faire preuve de précaution dans les atmosphères 
explosives.

VJC-200

Belt Drive

Arrangement 10

VJC-300

Belt Drive

Arrangement 10

VJI-BD

Belt Drive

Arrangement 10

VJI-DD

Direct Drive

Arrangement 4

Summary of Contents for VJC-200

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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

Reviews: