Description
The Town of Derry is seeking a qualified contractor to supply, install, program, and commission a new 500 HP, 480 V variable frequency drive (VFD) for the Trolley Car Lane Sewer Booster Pump Station in Londonderry, NH. The scope includes removal of the existing drive, provision of all required electrical components, on‑site harmonic distortion testing, factory‑representative assistance, documentation, a two‑year warranty, and disposal of the old equipment. The contractor must also secure any necessary electrical permits and comply with NEMA, UL, IEEE‑519, and FCC standards.
• Supply a UL‑listed 500 HP VFD with required auxiliary components (heater, control wiring, fuses, etc.).
• Remove the existing drive, install the new VFD, program settings, and perform full start‑up and testing, including harmonic distortion verification.
• Provide all required permits, insurance, documentation, a two‑year warranty, and proper disposal of the removed hardware.