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11
42” Length
of “D” Seal
5/8”Space
Between the
Rigging Guide
and “D” Seal
Figure 18.
Coil Module Rigging
Rigging
Guides
ENDURADRIVE
®
Fan System Installation
The ENDURADRIVE
®
Fan System is optional for select Series FXV3 and CXVT
models. The ENDURADRIVE
®
Fan System variable frequency drive (VFD) is to
be installed per the
N5350 Cooling Tower Drives User's Guide
available at www.abb.com.
The fan motor must be wired directly into the VFD and
cannot be wired across the line. For wiring details, refer to the submittal
drawings.
Warnings for the ENDURADRIVE
®
Fan System
•
WARNING:
ENDURADRIVE
®
Fan System motors can induce voltage and current in the motor
leads by rotating the motor shaft, even when the motor is completely disconnected from
the
power source. Electrical shock can cause severe personal injury or death. Therefore,
mechanically lock or tie down the fan until all wiring has been completed and before
servicing the drive system, or when performing any motor maintenance procedure. Only
qualified personnel should attempt the installation, operation and maintenance of this
equipment.
•
WARNING:
Pacemaker danger − Magnetic and electromagnetic fields in the vicinity of current
carrying conductors and ENDURADRIVE
®
Fan System motors can result in a serious health
hazard to persons with cardiac pacemakers, metal implants, and hearing aids. To avoid risk,
stay away from the area surrounding the ENDURADRIVE
®
Fan System motor.
•
WARNING:
The VFD may apply hazardous voltages to the motor leads after power to the
controller has been turned off. Verify that the controller is incapable of delivering hazardous
voltages and that the voltage at the motor leads is zero before proceeding. Failure to comply
with this warning may result in severe personal injury or death.
Attentions for the ENDURADRIVE
®
Fan System
•
VFD must be powered on at all times so that trickle current can remove moisture from motor
when idle.
•
Use only a shielded motor power cable with a complete circumferential braided or copper
film/tape ground jacket around the power leads. This ground should be secured to the motor
frame from within the motor terminal box and must return without interruption to the drive
ground.
•
To prevent equipment damage, be sure that the electrical service is not capable of delivering
more than the maximum motor rated amps listed on the rating plate.
Unit Rigging & Assembly
Section Assembly of
Four-Piece Cells
ENDURADRIVE
®
Fan System
Installation
