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IM-166
August 2022
REVIEW AMCA PUBLICATION 410 PRIOR TO INSTALLATION
This manual has been prepared to guide the users of mixed flow fans in the proper installation, operation and maintenance procedures
to ensure maximum equipment life with trouble-free operation. For safe installation, startup and operational life of this equipment,
it is important that all involved with the equipment be well versed in proper fan safety practices and read this manual. It is the user's
responsibility to make sure that all requirements of good safety practices and any applicable safety codes are strictly adhered to.
Because of the wide variety of equipment covered in this manual, the instructions given here are general in nature. Additional product
and engineering information is available at www.aerovent.com.
Refer to the safety section(s) in this manual prior to installing or servicing the fan. The most current version of this installation and maintenance
manual can be found on our website at www.aerovent.com/resources/im-manuals.
Table of Contents
Fan Arrangements ........................................................................2
Exploded View..............................................................................2
Impeller Nomenclature ................................................................3
Impeller Rotation .........................................................................3
Safety & Hazard Warnings ...........................................................4
Shipping & Receiving....................................................................4
Handling .......................................................................................5
Unit Storage .................................................................................6
Foundations and Supporting Structures ...................................7-8
Fan Installation, Factory Assembled Units ...................................9
Bearing Installation ....................................................................10
Safety & Bearing Lubrication Instructions .................................11
Drive Mounting ..........................................................................12
Motor Support Adjustment .......................................................13
Maintenance ..............................................................................13
Mixed Flow Fans
Centrifugal Fans
Installation, Operation & Maintenance Manual
SAFETY NOTICE
Motor Maintenance ...................................................................13
Drive Maintenance .....................................................................14
Fan Bearing Maintenance ..........................................................14
Impeller and Shaft Maintenance ...............................................14
Structural Maintenance .............................................................15
Duct Connections .......................................................................15
Serial Number & Fan Type Nameplate ......................................15
Impeller Placement / Impeller Overlap .....................................16
Troubleshooting Guidelines .......................................................17
Installation / Start-up Checklist ..................................................18
Fan Maintenance Log .................................................................19
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Table of Contents
Related Manuals for Aerovent IM-166
Summary of Contents for Aerovent IM-166
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Page 1: Table Of Contents
SAFETY NOTICE Refer to the safety section(s) in this manual prior to installing or servicing the fan. The most current version of this installation and maintenance manual can be found on our website at www.aerovent.com/resources/im-manuals. Table of Contents Fan Arrangements ................2 Motor Maintenance ..............13... -
Page 2: Fan Arrangements
Installation, Operation & Maintenance Manual IM-166 Fan Arrangements Arrangement 3 Arrangement 4 Arrangement 9 Belt Driven Direct Drive Belt Driven Exploded View Sheave/Pulley Motor Motor Mount Bearing Housing With End Cover Belt Plate Belt Tube & Straightening Vanes Inlet Impeller... -
Page 3: Impeller Nomenclature
Installation, Operation & Maintenance Manual IM-166 Impeller Nomenclature Impeller Cone (End Ring, Shroud, Front Plate) Blade Back Plate Impeller Rotation Rotation View From Drive Side CLOCKWISE (CW) example shown... -
Page 4: Safety & Hazard Warnings
Safety & Hazard Warnings For general safety practices for air moving equipment, see AMCA Bulletin 410. Aerovent offers many safety accessories. These safety devices include (but are not limited to) belt guards, shaft guards, inlet and discharge screens. The use and suitability of safety devices is the responsibility of the purchaser. -
Page 5: Handling
Installation, Operation & Maintenance Manual IM-166 Handling Handling of all air moving equipment should be conducted by trained personnel and be consistent with safe handling practices. Verify the lift capacity and operating condition of handling equipment. When using hoisting equipment, only qualified and trained personnel should operate the equipment. -
Page 6: Unit Storage
Installation, Operation & Maintenance Manual IM-166 Unit Storage Store the unit in an environmentally stable and protected area. During storage, the fan should not be subjected to vibration from external sources or bearing damage may occur. The unit should be reasonably protected from any accidental impacts. Cover the fan to protect coatings and to prevent any foreign material or moisture from entering the bearings, motor, inlet or discharge. -
Page 7: Foundations And Supporting Structures
Installation, Operation & Maintenance Manual IM-166 WARNING Refer to handling section prior to lifting equipment. Foundations & Supporting Structures (refer to lifting/safety section) The AMX Mixed Flow Fans can be mounted horizontally, vertically or at any angle if ordered accordingly. Mounting brackets are available to accept both floor mounted and hanging vibration isolation. - Page 8 Installation, Operation & Maintenance Manual IM-166 Foundations & Supporting Structures (Cont.) Typical Vertical Mounting with Vibration Hangers ITEM QTY. DESCRIPTION Spring Hanger* Neoprene Washer Steel Washer** Hex Nut** Threaded Rod Hanger Rod** NOTES: *1. Spring hangers are optional accessories. 2. When spring hanger interferes with ductwork, add offset to threaded rod to provide clearance.
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Page 9: Fan Installation, Factory Assembled Units
Installation, Operation & Maintenance Manual IM-166 Fan Installation – Factory Assembled Units (refer to lifting/safety section) All fan impellers are statically and dynamically balanced using state of the art equipment in the factory. Final trim balancing is performed on factory assembled fans, unless the specified electrical characteristics of the motor are outside the limits of the factory test equipment. -
Page 10: Bearing Installation
Installation, Operation & Maintenance Manual IM-166 Bearing Installation (refer to safety section) The following section gives some general instructions on bearing installation. If bearings are to be field installed, the specific installation manual for the bearings will be provided and should be followed carefully. If provided, check the assembly drawings and bearing manufacturer's instructions for location of the fixed and expansion bearings. -
Page 11: Safety & Bearing Lubrication Instructions
Installation, Operation & Maintenance Manual IM-166 Safety & Bearing Lubrication Instructions WARNING 1. This equipment must not be operated without proper guarding of all moving parts. While performing maintenance be sure remote power switches are locked off. See AMCA Publication 410 for recommended safety practices. -
Page 12: Drive Mounting
Installation, Operation & Maintenance Manual IM-166 Drive Mounting (refer to safety section) WARNING Mount drives as follows: When working around belts and pulleys, keep hands away from 1. Slip (do not pound) proper sheave onto corresponding shaft. pinch points. Most drives utilize tapered bushings. Draw the bushing up evenly tightening in steps. -
Page 13: Motor Support Adjustment
Installation, Operation & Maintenance Manual IM-166 Motor Support Adjustment (refer to safety section) Two different types of motor mounts, post and saddle, are used on AMX Mixed Flow fans. The mount to use depends on the size of the fan and motor. -
Page 14: Drive Maintenance
Installation, Operation & Maintenance Manual IM-166 Drive Maintenance (refer to safety section) V-belt drives need periodic inspection, retensioning and occasional belt replacement. WARNING When inspecting drives, look for dirt buildup, burrs or obstructions that can cause premature belt or drive failure. If burrs are found, use fine emery cloth or a stone to remove them. -
Page 15: Structural Maintenance
Installation, Operation & Maintenance Manual IM-166 Structural Maintenance (refer to safety section) All structural components or devices used to support or attach the fan to a structure should be checked at regular intervals. Vibration isolators, bolts, foundations, etc., are all subject to failure from corrosion, erosion and other causes. Improper mounting can lead to poor operation characteristics or fan fatigue and failure. -
Page 16: Impeller Placement / Impeller Overlap
Installation, Operation & Maintenance Manual IM-166 Impeller Placement Model AMX AMX Impeller Overlap Size 12.25 15.00 16.50 18.25 20.00 22.25 24.50 27.00 30.00 33.00 36.50 40.25 44.50 49.00 54.25 60.00 66.00 73.00 80.75 89.00 0.31 0.38 0.44 0.56 0.63 0.69 0.75... -
Page 17: Troubleshooting Guidelines
If a final trim balance is required, it is the end user's 6. Acoustics or sound measurement procedure incorrect. responsibility to bring the fan back to factory specifications. Final trim balancing is not the responsibility of Aerovent. Refer to the Vibration Problems Vibration Guidelines table below. -
Page 18: Installation/Start-Up Checklist
Installation, Operation & Maintenance Manual IM-166 Installation/Start-up Checklist Become familiar with the equipment by looking at the fan assembly drawing for special instructions and accessories. Initial Fan Check WARNING Inspect fan for damage Check foundation, prepare for shims Verify that proper safety precautions have been followed. -
Page 19: Fan Maintenance Log
Installation, Operation & Maintenance Manual IM-166 Fan Maintenance Log Model Number__________________________ Serial Number __________________________ Date Completed Maintenance Performed By Comments... - Page 20 WWW.AEROVENT.COM 5959 Trenton Lane N | Minneapolis, MN 55442 | Phone: 763-551-7500 | Fax: 763-551-7501 ©2009 – 2022 Aerovent...
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