Installation Power Wiring
Field Installed Power Wiring
Power wiring to the equipment must conform to National and Local Electric Codes (NEC) by a professional electrician.
WARNING
Live Electrical
Components!
During installation, testing, ser- vicing and troubleshooting of this product, it may be necessary to work with live electrical compo- nents. Have a qualified licensed electrician or other individual who has been properly trained in handling live electrical compo- nents perform these tasks. Failure to follow all electrical safety pre- cautions when exposed to live electrical components could re- sult in death or serious injury.
Verify that the power supply available is compatible with the unit’s name- plate. Use only copper conductors to connect the power supply to the unit.
CAUTION
Use Copper Conductors Only!
Unit terminals are not designed to accept other types of conduc- tors. Failure to use copper con- ductors may result in equipment damage.
Main Unit Power Wiring
A field supplied disconnect switch must be installed at or near the unit in accordance with the National Elec- tric Code (NEC latest edition).
Location of the applicable electric service entrance for HIGH (line volt- age) may be found on the unit sub- mittal at the front of this manual (pages 10 through 47).
The high voltage connection is made at the 1K1 contactor or 1TB1 power block inside the unit control box. See Figure 8. Refer to the customer con- nection diagram that is shipped with the unit for specific termination points.
Provide proper grounding for the unit in accordance with the local and na- tional codes.
Control Power Transformer
The
WARNING
Hazardous Voltage!
Disconnect all electric power, in- cluding remote disconnects be- fore servicing. Follow proper lockout/tagout procedures to en- sure the power can not be inad- vertently energized. Failure to disconnect power before servic- ing could result in death or seri- ous injury.
The transformer is located in the control panel.
Figure 8: Example of power wiring
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