Introduction
HarmonicShield
®
HSD IOM Manual - Rev. D
5
Pre-installation Planning
Verify the Application
HSD Ratings
Make sure that the HSD filter is correct for the application. The voltage ratings of the filter must match
the input voltage rating of the connected drive. The horsepower and current ratings of the filter must be
appropriate for the connected load.
Select a Suitable Location
Environment
Locating the HSD in a suitable environment will help ensure proper performance and a normal operating
life. Refer to the environmental specifications listed in Table 5 and/or noted on the drawings furnished
with the unit.
Warning
Unless specifically labelled as approved for such use, this equipment is not
suitable for use in an explosive atmosphere or in a "Hazardous (Classified)
Location" as defined in article 500 of the National Electrical Code (NEC).
Make sure that the installation location will not be exposed to corrosive or combustible airborne contaminants,
excessive dirt or liquids. The unit is to be installed in an environment where it will not be exposed to:
•
Corrosive liquids or gasses
•
Explosive or combustible gases or dust
•
Excessive airborne dirt and dust
•
Excessive vibration [0.152 mm (0.006 in) displacement, 1G peak]
Working Space
Provide sufficient access and working space around the unit to permit ready and safe installation,
operation and maintenance. Make sure that the installation conforms to all working space and clearance
requirements of the National Electrical Code (NEC) and/or any other applicable codes. Provide sufficient
unobstructed space to allow cooling air to flow through the unit.
The widest or deepest portion of the unit enclosure having ventilation openings must be a minimum of
six inches from adjacent walls or other equipment. Any enclosure sides that do not have ventilation
openings should be a minimum of three inches from adjacent walls or other equipment.
Power Wiring
When selecting a mounting location for the HSD filter, plan for the routing of the power wiring.
Route the conduit and wiring from the power source to the filter and then to the VFD.
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