Brazos Valley Ionwave #27-012 Addendum 1

City of Bryan VFD Control Replacement with NXGPro+ Systems

The City of Bryan is seeking construction services to replace two variable-frequency-drive (VFD) control systems at its Water Production High Service Pump Station. - Government buyer: City of Bryan, Water Services, Purchasing Department (Bryan, Texas). - OEM: Innomotics is named for the existing NXGI equipment; the specified replacement is the NXGPro+ system. The bid documents also call for an Anybus component in the spare-parts kit. - Products requested: - One upgrade package for NXGPro+ air-cooled 9–18-cell systems, including parts and engineering; the amended scope is to replace two VFD systems serving 800-horsepower drives. - One NXGPro+ spare-parts kit, including an NXGPro+ DCR without STO program; DNR120 power supply (264V, 24V, 5A); two DNR18 power supplies (264V, 15V, 1.2A); system interface board assembly; PCA final assembly 120VAC user I/O board; NXGProPlus power supply; six transient voltage suppressors; three 0.0047uF 100VDC 10% ceramic capacitors; three 0.001uF 200V 10% ceramic capacitors; two Hall Effect burden resistors; English multilingual keypad assembly; and one Anybus. - Two VFD control systems, specified for upgrade from NXGI to NXGPro+. - Services requested: One installation and commissioning line item, with project work also including programming, testing, training, and closeout documentation to deliver a complete, operable installation. - Notable requirements: The estimated replacement budget is $125,000–$240,000. The RFP describes an estimated duration of 30 working days; no option years or annual subscription are specified.

Description

The City of Bryan is requesting competitive sealed proposals for construction services to upgrade the variable-frequency-drive control system at the Water Production High Service Pump Station. The work is to replace the existing Innomotics NXGI system serving 800-horsepower drives with a complete, tested, and operable NXGPro+ installation. Scope includes related programming, commissioning, training, closeout documents, and a spare parts kit. Addendum 1 states the project covers replacement of two VFD systems and gives an estimated replacement budget of $125,000 to $240,000.

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