Minneapolis Supplier Systems #0000004386

3rd Avenue Parking Ramp ventilation fan replacement and CO/NO₂ monitoring system

The City of Minneapolis is seeking a contractor to replace ventilation equipment and add gas monitoring at the Minneapolis Convention Center’s 3rd Avenue Parking Ramp. - Government buyer: City of Minneapolis, Finance and Property Services—Procurement; project site and end user are the Minneapolis Convention Center (MCC) parking facilities. - Fans: Replace and install four 480V, three-phase, direct-drive fans: EF-1 exhaust and SF-1 supply, each 24,000 CFM, 0.25 in. WC, 3 HP; EF-2 exhaust and SF-2 supply, each 26,250 CFM, 0.25 in. WC, 5 HP. - CO/NO₂ monitoring: Provide a complete system with sensors, floor-level zoning, control panels, power, fan integration, protective sensor cages, testing, and calibration. Sensor quantities must meet coverage requirements. - Named manufacturers/vendors: ACME, Macurco, Toxalert, Honeywell, and CET are listed as potential system manufacturers/vendors, or an approved equal. Opera also appears in the bid pricing sheet’s selection list; no manufacturer was selected. - Other equipment and alternate: Base work includes two backdraft dampers, two manual override switches, and ductwork modifications as needed. Alternate No. 1 prices four VFDs—one per fan—with wiring changes, programming, integration, startup, testing, commissioning, and operator training. - Notable requirements: Fans must respond automatically to gas alarm signals. Sensor cages must protect sensors while permitting airflow and service access. The work includes a minimum two-year warranty, biannual system calibration/testing during the warranty period, and coordination with MCC operations and event schedules. Prevailing wage applies.

Description

The City of Minneapolis is seeking bids for the 3rd Avenue Parking Ramp Ventilation Fan Replacement and CO/NO Monitoring System at the Minneapolis Convention Center. Work includes removing and replacing ventilation fans and installing associated controls and a complete carbon monoxide/nitrogen dioxide monitoring system in accordance with the specifications. Variable Frequency Drives are excluded from the base bid and must be priced separately as Alternate No. 1. The bid is due December 1, 2026, at 2:00 PM CST; a single contract will be awarded to the overall low, responsive, responsible bidder meeting all specifications.

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