TCI HGA Manual - Manual (Page 27)

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■ Section 4
Pre-installation Planning
Verify the Application
HGA Ratings
Make sure that the HarmonicGuard Active filter is correct for the application and sized for load. The
voltage ratings of the HGA must match the input voltage rating of the connected AC bus.
Select a Suitable Location
Environment
Locating the HarmonicGuard Active filter in a suitable environment will help assure proper
performance and a normal operating life. Refer to the environmental specifications listed in Table 3.6,
marked on the unit's nameplate and/or noted on the drawings furnished with the unit.
Warning
Unless specifically labeled 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).
UL Type 1 and open chassis units must be installed in an area where it will not be exposed:
• Direct sunlight
• Rain or dripping liquids
• Corrosive liquids or gasses
• Explosive or combustible gases or dust
• Excessive airborne dirt and dust (Pollution Degree 2, according to EN50178 and UL508)
• Excessive vibration [0.152 mm (0.006 in.) displacement, 1G peak]
Please note that custom enclosure options may vary available installation areas.
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.
Mounting an Open Chassis Unit
If you are mounting an open chassis unit in your own enclosure, you must provide an enclosure that is
adequately sized and ventilated sufficiently to prevent overheating. Refer to Table 3.2 for dimensions
and heat loss that is dissipated by the HGA. The maximum ambient temperature should not exceed 40°
C (104° F). The 45 and 90 amp open chassis units have an ambient surrounding air temperature of
50ºC (122ºF).
Cooling Diagrams
Please see Figures 4.1 and 4.2 for cooling diagrams of the HGA.
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