Electrical Connection of Retrofitted City Grinder Pump Systems

For the existing residence, new individual branch circuit wiring shall be installed from the existing electrical distribution equipment (panel) to the control panel. For Grinder Systems the new individual branch circuit wiring shall be a twelve-three (12-3 with a ground wire) cable and (non-fused, 60A) Disconnect Box. Wiring will be a minimum size of #12AWG and shall be protected with a two-pole-20-amp over current device two hundred thirty (230) volt. For Low Pressure STEP Systems must provide one (1) twenty (20)-amp (minimum) breaker for use to supply power to the pump and one (1) fifteen (15)-amp (minimum) breaker for use to supply power for the control circuit. Pump power minimum wire size 12-gauge copper conductor (75-C). Control circuit minimum wire size 12-gauge copper conductor (75-C). The wire size is based on less than one hundred (100) feet. Acknowledges distance between electrical control box and STEP tank will not exceed twenty-five (25) feet. NOTE: As of April 1993, installation requires two (2) separate breakers on same phase in panel box. The exterior weather proof (non-Fused, 60 A) Disconnect Box with blank cover and wire shall be forty (40) inches above finished floor and located on the side of the home within five (5) feet of the front corner (same corner as sewer lateral). Height of panel shall be a minimum of three and a half (3 ½) feet or forty-two (42) inches and a maximum of four and a half (4 ½) feet or fifty-four (54) inches.

Division 26 -

Electrical.