Durham Public Schools Apptegy #179-2223-663-Carrington_chiller

Carrington Middle School Chiller Replacement – Trane Chillers, BAS Integration, and HVAC Upgrades

Durham Public Schools is seeking bids for the Carrington Middle School Chiller Replacement project, focusing on major HVAC upgrades and integration with building automation systems. - Government Buyer: - Durham Public Schools (Durham County, North Carolina) - OEMs and Vendors: - Trane (preferred and basis of design for chillers) - Daikin (approved equivalent for chillers) - Bell & Gossett (sole approved for pumps and hydronic specialties) - Honeywell (owner-preferred for VFDs) - Distech Controls (preferred for BAS controls) - Additional referenced OEMs: Johnson Controls/York, Armstrong Pumps, Grundfos, TACO, ABB, Danfoss, Yaskawa, Eaton, Schneider Electric/Square D, Siemens, Alerton, Automated Logic, Carrier, Reliable Controls, Schneider Electric, Siemens - Products/Services Requested: - Replacement of three air-cooled chillers (2 x Trane RTAF-200, 1 x Trane CGAM-0704) - Integration of new chillers with existing building automation system (BAS) - Replacement of associated hydronic pumps (Bell & Gossett Model 1510-4e and others) - Installation of new variable frequency drives (VFDs) for pumps (Honeywell preferred) - Expansion tanks and air separators (Bell & Gossett) - Electrical upgrades: motor starters, disconnect switches, and power/control cabling - Full commissioning, owner training, and BAS graphics integration (Brady Trane as integrator) - Unique/Notable Requirements: - Strict adherence to owner-preferred OEMs for chillers, pumps, VFDs, and BAS controls - Coordination with Brady Trane for controls and graphics integration; all costs must be included in bids - Compliance with Davis-Bacon Act (prevailing wage), MBE policies, and Iran Divestment Act - Bidders must show experience with at least five similar projects in the past three years - 5% bid security and 100% performance/payment bonds required - Project must minimize disruption to school operations and ensure site safety and security - Chiller lead time is up to 52 weeks from purchase order; project duration is over 12 months - Warranty: 12 months for workmanship/materials, up to 5 years for some equipment

Description

Durham Public Schools is soliciting sealed bids from licensed contractors for the Carrington Middle School Chiller Replacement project. The project involves replacing three existing chillers with new units in the same locations and integrating the new equipment into the existing control system. Bids are due by December 13, 2022, with a pre-bid conference held on November 17, 2022. The procurement requires compliance with minority business participation policies and adherence to the Davis-Bacon Act wage requirements.

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