MK Plastics CNW Installation, Operation And Maintenance Manual

MK Plastics CNW Installation, Operation And Maintenance Manual

Centrifugal fiberglass fan

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INSTALLATION, OPERATION AND MAINTENANCE MANUAL
Introduction
This bulletin contains the proper installation, operation and
maintenance procedures for the standard CNW Medium
Pressure and Volume Centrifugal Fiberglass Fan to ensure
safe
and
trouble-free
complements good general practices; however it is the
responsibility of the purchaser to provide qualified
personnel experienced in the installation, operation and
maintenance of air moving
The M.K. Plastics catalog on the CNW fan provides
additional information describing the equipment, fan
performance, available accessories and specifications. It is
available via our website at www.mkplastics.com.
For additional safety information, refer to AMCA publication
410: Recommended Safety Practices for Users and
Installers of Industrial and Commercial Fans.
For information on special fan application requirements,
please
contact
M.K.
+1-514-871-9999, US Toll Free: 1-888-278-9988 or via our
website at www.mkplastics.com.
Figure 1
CNW Centrifugal Fiberglass Fan
WARNING
This unit has rotating parts. Safety precautions should
be
exercised
at
all
operation, and maintenance.
ALWAYS disconnect power prior to working on fan.
M.K. Plastics Corp. Montréal, Québec, Canada
fan
operation.
This
bulletin
equipment.
Plastics
corporate
office
times
during
installation,
CNW
Centrifugal Fiberglass Fan
Electrical Disconnects
Every motor-driven fan should have an independent
disconnect switch to isolate the unit from the electrical
supply. The disconnect switch should be near the fan and
must be capable of being locked by maintenance personnel
while servicing the unit. Maintenance personnel must be
provided complete control of the power source.
Moving Parts
All moving parts must have guards to protect personnel. All
CNW fans are supplied with vented FRP belt and shaft
guards. Never start a fan without having all safety guards
installed. Check regularly for damaged or missing guards
and do not operate any fan with guards removed.
Sound
Fans can generate sound that could be hazardous to
at
exposed personnel. Appropriate ear protection should be
used by maintenance personnel.
Air Pressure and Suction
Fans present a hazard from the suction created at the fan
inlet. This suction can draw materials into the fan where
they become high velocity projectiles at the outlet. Inlets
and outlets that are not ducted should be screened to
prevent entry and discharge of solid objects.
can be supplied with inlet and/or outlet PVC or stainless
steel screens.
Access Doors
Access doors to the duct system should never be opened
while the fan is in operation. Serious injury could result
from the effects of air pressure or suction.
Receiving and Inspection
All M.K. Plastics fans are carefully inspected before leaving
the factory. Compare all components with the bill of lading
or packing list to verify that the proper unit was received.
Check each unit for any damage that may have occurred in
transit:
Turn the wheel by hand to ensure it turns freely
and does not bind.
Inspect the dampers (if supplied) for free operation
of all moving parts.
Record on the Delivery Receipt any visible sign of
damage.
Mishandled units can void the warranty provisions. If units
are damaged in transit, it is the responsibility of the receiver
to make all claims against the carrier. M.K. Plastics will
assist the customer as much as possible; however claims
+1-514-871-9999
www.mkplastics.com
Bulletin 10-02-February 2017
CNW fans
Page 1 of 12

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Summary of Contents for MK Plastics CNW

  • Page 1 All moving parts must have guards to protect personnel. All performance, available accessories and specifications. It is CNW fans are supplied with vented FRP belt and shaft available via our website at www.mkplastics.com. guards. Never start a fan without having all safety guards installed.
  • Page 2: Pre-Installation

    Do not store the fan in a location where it will Handling be subjected to vibration. CNW Fans are to be hoisted and moved by the base or by lifting lugs provided on the fan. See Figure 2. The location Pre-Installation of lifting lugs varies by fan size and arrangement.
  • Page 3 If supplied, place vibration pads or isolation base off the fan discharge. See Figure 7. on mounting bolts. Line up holes in the fan base The location of the CNW fan outlet can be catered to the with bolts. specific installation.
  • Page 4 INSTALLATION, OPERATION & MAINTENANCE MANUAL CNW Centrifugal Fiberglass Fan Bulletin 10-02-February 2017 Vibration Isolators: To prevent vibration and noise from being transferred to the building, vibration isolators are recommended. Isolators should be located between the fan system and the support structure. M.K. Plastics supplies four main types of isolators for CNW fans.
  • Page 5 Care must be taken when using a fan to support ductwork. Drive Alignment: CNW fans are not designed to carry high external loads. Adding such loads to the fan may cause the impeller to rub Belt drives are aligned in the factory, but may no longer be or cause other misalignments which could damage the fan.
  • Page 6: Motor Maintenance

    Belts will produce a loud squeal which dissipates after the fan is operating at full On CNW fans, motor bearings are pre-lubricated and capacity. Re-tension the belts just tight enough so that the sealed.
  • Page 7: Wheel And Shaft Maintenance

    Drainage Detail Fan bearing replacement intervals are defined by the fan operator. M.K. Plastics does not define a schedule for All CNW fans come with outlet drains due to water or bearing replacement, dependent condensation that may accumulate. Proper disposal of the environment, usage and maintenance of each specific fan water is necessary.
  • Page 8: Operational Checklist

    INSTALLATION, OPERATION & MAINTENANCE MANUAL CNW Centrifugal Fiberglass Fan Bulletin 10-02-February 2017 anti-corrosion coating with a suitable degreaser diameter.) Make sure the maximum fan RPM and and wipe clean. maximum motor HP is not reached. The maximum motor HP can be found on the motor nameplate.
  • Page 9 INSTALLATION, OPERATION & MAINTENANCE MANUAL CNW Centrifugal Fiberglass Fan Bulletin 10-02-February 2017 Once the unit has been put into operation, a routine Restore power to the fan. maintenance schedule should established inspecting all parts of the fan. The frequency of inspection...
  • Page 10 INSTALLATION, OPERATION & MAINTENANCE MANUAL CNW Centrifugal Fiberglass Fan Bulletin 10-02-February 2017 Troubleshooting Excessive Noise or Vibration • Damaged wheel. • Wheel rubbing inlet; adjust wheel or inlet. • Verify wheel balance, rebalance if necessary. • Belts too loose; worn or oily belts.
  • Page 11 INSTALLATION, OPERATION & MAINTENANCE MANUAL CNW Centrifugal Fiberglass Fan Bulletin 10-02-February 2017 Figure 23 CNW Belt Drive Arrangement #10 Parts List Figure 24 CNW Direct Drive Arrangement #4 Parts List M.K. Plastics Corp. Montréal, Québec, Canada +1-514-871-9999 www.mkplastics.com Page 11 of 12...
  • Page 12: Warranty

    INSTALLATION, OPERATION & MAINTENANCE MANUAL CNW Centrifugal Fiberglass Fan Bulletin 10-02-February 2017 Warranty M.K. Plastics will not be responsible for damage to equipment or materials through improper installation, storage, improper servicing, or through attempts to operate it in excess of its rated capacity or recommended use, intentional or otherwise. We will not be responsible for consequential damage.

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