Cambridge OpenGov #COC-CIFB-FY25-30162FSB

Cambridgeport School two-boiler replacement and related trade work

The City of Cambridge is seeking bids for a two-boiler replacement at Cambridgeport School, with related plumbing and electrical work. - Government buyer: City of Cambridge — Purchasing/Awarding Authority, with Cambridge Public Schools as the school department; project location is Cambridgeport School, Cambridge, Massachusetts. - Scope: Replace two existing boilers. Plumbing and electrical work are separate lump-sum filed sub-bids; the plumbing work is being solicited separately after the earlier sub-bid received no acceptable bids. - OEMs and named vendors: Lochinvar is mentioned in connection with the boilers, but no boiler manufacturer is mandated. Centrotherm is mentioned as a potential exhaust vent and air-intake product supplier, not a required brand. System Sensor CO1224T is cited as the reference for the carbon monoxide detectors. Project and survey firms named are Johnson Roberts Associates, Inc. and Universal Environmental Consultants; Liz Unger is identified with City of Cambridge Purchasing. - Equipment and quantities: Two boilers (B-1 and B-2); three VFDs for pumps P-1, P-2, and P-5; one glycol feed pump (GF-1); three hot-water pumps (P-1 through P-3); two boiler pumps (BP-1 and BP-2); one chemical-feed unit (CF-1); two carbon monoxide detectors; and two emergency boiler shutoffs. A new emergency panel (EPB) is also shown in the drawings. No required boiler model or part number is specified. - Notable requirements: Boiler exhaust and air-intake products must be UL 1738-listed and included on the Massachusetts Accepted Plumbing Products approval list. Listed Massachusetts-approved press-type natural-gas fittings are acceptable. The CO detectors connect to the existing fire-alarm loop as supervisory-only devices; emergency shutoffs must interlock with the boiler controls and shut down both boilers. VFDs are required for P-1, P-2, and P-5, but not BP-1 or BP-2. - Site condition and participation: The asbestos survey found chrysotile in roof-level boiler-exhaust components. Licensed asbestos abatement and project monitoring are required if asbestos-containing material is disturbed; hidden asbestos may also be encountered. The bid package states a goal of at least 10% MBE participation.

Description

The City of Cambridge invites bids for the Cambridgeport School Boiler Replacement. The corrected project scope is to replace two old boilers, with filed sub-bids for plumbing and electrical work. Plans, specifications, and project documents are provided in the attachments. An official notice states that the plumbing filed sub-trade is being re-bid under a separate solicitation, COC-CIFB-FY25-30162AFSB, for plumbing only.

View original listing