RFB Questions Answers UPDATED.pdf

This document is a Questions and Answers addendum to RFB#22-BM29 issued by the City of Sun Prairie, Wisconsin, for the replacement of two boilers at the Westside Community Service Building located at 2598 W Main St, Sun Prairie, WI. The project scope includes boiler replacement with integration into existing controls, with system upgrades to be performed separately by Johnson Controls following installation. An alternate bid option is available for the replacement of two pumps and two Variable Frequency Drives (VFDs), specifically Danfoss VLT 6000 HVAC units. Questions were received by August 5, 2022, with answers posted by August 9, 2022, and updated responses provided on August 10, 2022. The original project completion deadline was October 31, 2022; however, the city acknowledged that this timeline could be adjusted to account for supply chain issues and equipment lead times beyond the bidder's control, and bidders were required to provide estimated project completion dates in their updated bid proposals reflecting expected equipment delivery periods.

Key project clarifications addressed in this Q&A include elevator access to the basement (weight capacity of 2,500 pounds with temporary card access available), control system integration into existing infrastructure, and the confirmation that Davis-Bacon prevailing wage requirements do not apply to this project. The current water treatment contractor is Chris Hubbard of Global Water Technology. Bidders were directed to submit updated bid proposals that included alternate bid line items for both the pump and VFD replacements, with flexibility regarding project completion dates to accommodate material procurement delays inherent to current supply chain conditions. The facility is currently operating with reduced capacity as one boiler is out of service, emphasizing the time-sensitive nature of the work.