TCI HG7 - Manual (Page 8)

I N T R O D U C T I O N
INTRODUCTION HG7 I, O, & M Manual 6
Installation Guidelines
Mounting
The HG7 must be mounted vertically on a smooth, solid surface, free from heat, dampness, and
condensation.
Wiring
Cable Entry Locations
The enclosed HG7 harmonic filters are not provided with enclosure wiring knockouts. A selection can
be made at the time of installation. Typical or recommended cable entry locations are shown in the
drawings section of this manual.
Field Wiring Connection Terminals
Compression type terminals are provided for all field wiring connections. The control circuit terminals
will accommodate 18 AWG to 10 AWG wire and should be tightened to 7 lbs. - in. torque. The wire
size capacity ranges and tightening torque for the grounding and power terminals are listed in the
drawings and other information shipped with the unit.
Grounding
The HG7 panel equipment-grounding lug must be connected to the ground of the wiring system. The
equipment grounding connection must conform to the requirements of the National Electric Code
(NEC) and/or any other codes that apply to the installation site. The ground connection must be made
using a wire conductor. Metallic conduit is not a suitable grounding conductor. The integrity of all
ground connections should be periodically checked.
Power Wiring
Caution Use copper wire that is appropriate for the voltage and current rating of the
equipment. The wire selection must conform to the requirements of the
National Electrical Code and/or other applicable electrical codes.
For units rated less than 100 amps, use wire with an insulation temperature
rating of 60°C or higher.
For units rated 100 amps or more, use wire with an insulation temperature
rating of 75°C or higher.
Connect three-phase power of the appropriate voltage and current capacity to the branch circuit
protective device to the HG7 input power terminals. Note: in large units, the input power conductors
are connected directly to the input terminals on the line reactors.
Connect the output terminals of the HG7 to the input power terminals of the adjustable speed drive.
Note: in large units, the output power conductors are connected directly to the output terminals on the
line reactors. Refer to the adjustable speed drive installation instructions for additional information.