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equipment. Electrical savings can be large during periods of low ambient
temperature when the cooling requirement can be satisfied at reduced
speeds. To benefit from these advantages, it is important that the drive
be installed correctly.
Marley supplies VFD and VFD controls specifically 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.
Warning
Warning
Installation