SPX Cooling Technologies 98-1514E Fan User Manual


 
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ergy being used and provide better temperature control. In addition, it
reduces the mechanical and electrical stress on the motor and mechanical
equipment. Electrical savings can be large during periods of low ambient
temperature when the cooling requirement can be satised at reduced
speeds. To benet from these advantages, it is important that the drive
be installed correctly.
Marley supplies VFD and VFD controls specically designed for our cooling
products. If you have purchased a Marley VFD and/or controls package,
please follow the instructions in the User Manual for that system. Most
VFD problems can be avoided by purchasing the Marley drive system. If
you are installing a VFD other than the Marley drive, please refer to that
drives installation manual.
ImproperuseofaVFDmaycausedamagetoequipmentorpersonal
injury. Failure to correctly install the VFD drive will automatically void
allwarrantiesassociatedwiththemotorandanyequipmentthatis
eitherelectricallyormechanically(directly)attachedtotheVFDdrive
system. The length of this warranty avoidance will be contingent on
properly installing the VFD system and repairing any damage that may
have occurred during its operation. SPX Cooling Technologies does
not assume responsibility for any technical support or damages for
problems associate with non-Marley brand VFD systems.
Changing the operational fan speed from the factory settings could
cause the fan to operate in an unstable region which may result in
damagetotheequipmentandpossibleinjury.
Mechanical Equipment:
Always shut off electrical power to the tower fan motor prior to
performing any maintenance on the tower. Any electrical switches
shouldbelockedoutandtaggedouttopreventothersfromturning
thepowerbackon.
1. Install AV61000 and AV62000 fan guard according to the installation
drawing shipped with the tower. The fan guard on other models is
factory installed.
2. Spin the fan manually to assure that all fan blades properly clear the
inside of the fan cylinder. Observe the action of the sheaves and belt(s)
to be sure that the motor is properly aligned with the fan sheave. If
Warning
Warning
Warning
Installation