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<br />IN~IALLATION INSTRUCTIONS'FOR'ARRANGEMENT 4 FANS
<br />
<br />RECEIVING
<br />Chicago Blower Corporation equipment is prepared for
<br />shipment in accordance with the Uniform Freight
<br />Classification. It is thoroughly Inspected at the factory,
<br />has usually been run tested, and, barring damage in
<br />transit, should be in perfect condition.
<br />
<br />When a carrier signs the Chicago Blower Corporation's
<br />bill of lading, the carrier accepts the responsibility for
<br />any subsequent shortages or damage evident or con-
<br />cealed, and any claim must be made against the carrier
<br />by the purchaser. Evident shortage or damage should be
<br />noted on the carrier's delivery document before
<br />signature of acceptance. Inspection by the carrier of
<br />damage evident or concealed must be requested. After
<br />Inspection, issue a purchase order for necessary parts
<br />or arrange for return of the equipment to CBC factory for
<br />repair.
<br />
<br />Chicago Blower Corporation fans are shipped complete-
<br />ly assembled and skidded. These units may be handled
<br />and moved using good rigging techniques, being careful
<br />to avoid concentrated stresses that will distort any of
<br />the parts.
<br />
<br />STORAGE:
<br />If the fan is not to be Installed promptiy, store it in a dry
<br />place with the motor and wheel protected against
<br />moisture, dust, corrosion and physical damage. If the
<br />unit must be exposed to weather, contact the Motor
<br />manufacturer for special Instructions. For extended
<br />long storage periods call Chicago Blower for instruc-
<br />tions and the cost of Extended Warranty.
<br />
<br />SAFETY PRECAUTIONS:
<br />The fan which you have purchased is a rotating piece of
<br />equipment and can become a source of danger to life or
<br />.cause injury If not properly applied. The maximum
<br />operating temperature for which this fan is designed
<br />must not be exceeded. These limits are given in our
<br />catalog, in the order write-up, or on Chicago Blower Cor-
<br />poration drawings.
<br />
<br />Personnel who will operate this fan, or those who will
<br />perform maintenance thereon, must be given this
<br />bulletin to read and warned of the potential hazards of
<br />this equipment.
<br />
<br />This pamphlet contains general recommendations, but
<br />specific requirements may apply to the individual in-
<br />stallation. Such requirements are outlined in federal,
<br />state and local safety codes. Strict compliance with
<br />these codes, and strict adherence to these installation
<br />instructions are the responsibility of the user. Inlet and
<br />discharge screens are accessories.
<br />
<br />a. Match mark the bushing and the hub so they c,",
<br />be reinstalled In exactly the same relative positio,",
<br />and not unbalance the wheel.
<br />b. Remove all boits from the bushing
<br />c. Insert two bolts in the holes that are threaded in
<br />the bushing. (Note that one bolt is left over and not
<br />used in demounting).
<br />d. Tighten boits alternately until bushing is loosened
<br />in hub. If bushing does not loosen immediately,
<br />lightly tap hub while applying torque to the bolts.
<br />
<br />5. To reinstall the taper-lock bushing in the wheel hub,
<br />orient bushing to align the match marks and insert
<br />the three mounting bolts, through the unthreaded
<br />bushing holes, into the hub. Alternately tighten bolts.
<br />Hammer agaInst the large end of the bushing using a
<br />brass block or sleeve to avoid damage, and again
<br />tighten the bolts. Repeat this procedure until bolts no
<br />longer turn.
<br />
<br />6. Check the motor wiring and fusing in accordance
<br />with the National Electrical Code and local re-
<br />quirements. Follow wiring diagram on the motor
<br />nameplate.
<br />
<br />7. Check motor bearing lubrication. They were
<br />lubricated at the factory, but recheck and, if required,
<br />use a good grade motor lubricant such as Chevron
<br />SRI-2 or Unirex N2.
<br />
<br />OPERATION OF FAN:
<br />After installing the fan per these instructions and those
<br />of the manufacturers of components, make final safety
<br />checks to prevent injury to personnel or damage to the
<br />equipment.
<br />
<br />1. Make sure the wheel, inside of the fan housing, and
<br />any ductwork, is clean and free of debris.
<br />
<br />2. Start the fan to check proper rotation. It is clockwise
<br />or counter-clockwise as seen from the drive side of
<br />the fan. If the wheel turns in the wrong direction,
<br />reverse motor rotation per the motor instructions-
<br />usually by interchanging any two leads on a three
<br />phase motor.
<br />
<br />3. Start fan and allow unit to reach full speed, then shut
<br />down. During this short period, check for vibration,
<br />any unusual noise, or overheating of the motor.
<br />Check the motor amps drawn against the nameplate
<br />rating. A plate over the fan inlet will limit the horse-
<br />power drawn during a test run with limited ductwork.
<br />
<br />4. After the trial run lock the power "OFF".
<br />
<br />5. Recheck for tightness of hold.down boits, all set
<br />screws and keys, and retighten if necessary. Recheck
<br />again after 8 and 24 hours of actual operation.
<br />
<br />6. The run-in period should be at least 8 hours. Check
<br />the motor bearings and motor heating a minimum of
<br />once each hour. Do not overgrease motor bearings.
<br />Relubricate per motor manufacturer's instructIons.
<br />
<br />INSTALLATION
<br />1. Good results require a proper foundation. Founda-
<br />tions should be level, rigid, and of sufficient mass for
<br />the equipment. Concrete is preferable. Its mass
<br />should equal four times the fan weight. Adequately
<br />brace steel platforms in all directions. The minimum
<br />natural frequency of any part must be at least 50%
<br />higher than the fan running speed.
<br />
<br />2. Shim the fan support points before tightening foun-
<br />dation bolts. Do not distort or twist the equipment.
<br />Make sure that the fan is set level.
<br />
<br />3. Check wheel-to-inlet cone clearance to make sure it
<br />has not shifted during shipment or handling. There
<br />should be approximately equal axial clearance all
<br />around. Rotate wheel by hand to check that it runs
<br />free. .
<br />
<br />If the wheel is striking, correct it by loosening the in-
<br />let cone bolts and recentering the cone to the "eye"
<br />of the wheel, or unfasten the hub set screws and
<br />reposition the wheel on the motor shaft, or loosen the
<br />motor mounting bolts and realign the wheel to inlet
<br />so it does not hit. Retighten all set screws and bolts
<br />and turn by hand again. -
<br />
<br />4. If the fan wheel is fastened with a taper-lock bushing
<br />and the wheel must be shifted, fOIl01J~~g~~~~~Control, f:c~ :rW;1~}7~3~f581
<br />
<br />MAINTENANCE:
<br />Should excessive vibration or motor temperature later
<br />develop, check the following possibilities: (1) Buildup of
<br />dirt or foreign material on wheel; (2) Bolts on motor or
<br />fan housing or foundation loose; (3) The wheel eroding
<br />or corroding; (4) Wheel set screws loose; (5) Vibration
<br />coming from source other than fan; (6) Foundation settl-
<br />ed; (7) Clearance between wheel and inlet has changed
<br />and wheel is hitting.
<br />
<br />If the fan is to remain Idle for an extended period, pro-
<br />tect motor and exposed surfaces. Follow the motor
<br />manufiicturer's recommendations for storage and rotate
<br />the shaft by hand several revolutions each month.
<br />
<br />WARRANTY:
<br />The warranty on the Chicago Blower fan is our standard
<br />warranty. The warranty on the motor is that extended by
<br />the motor manufacturer.
<br />
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