Specifications include, but are not limited to: furnishing and installing DOAS-1, ACCU-2, ACCU-3, and all associated indoor VRF units serving second and third floors. Work to include but not limited to, providing all associated equipment, ductwork, piping, controls, structure, electrical, architectural and components necessary for a fully functioning system. Cap DOAS-1 duct mains in first floor ceiling for future connection. Valve and cap DOAS-2 hot water mains in first floor ceiling for future connection. Perform unit ventilator demolition work and replacement with finned tube radiation in rooms being served by DOAS-1 on second and third floors. Provide all electrical work to support mechanical upgrades including replacing MMC-4 with new panel board and migrating existing electrical loads. When replacing MCC, the existing exhaust fans remaining in service shall be provided with motor starters and mechanical time clocks. Contractor to verify power requirements to match. There are seven fans on the 1970 roof. Refer to dwg M4.1 for building references and locations. MC to furnish motor starters, time clocks and control. Alternate work includes additional air conditioning to portions of the 1970 and 1975 areas of the high school as well as removals of existing HVAC and electrical systems. Alternates are defined under specification section Alternates 012300. Work includes but is not limited to providing new dedicated outside air supply units, VRF systems, exhaust fans, controls, structural work, architectural work, roofing, curbs, supports, duct work, piping, draining and refilling heating system, insulation, electrical, electrical power upgrades, temporary power, power for construction activities, controls, cutting and patching, restoration, chases, fire stopping, smoke sealing, fire alarm, ceiling work, general conditions, restoration, coordination, supervision, phased construction, painting, rigging, mechanical and electrical system shut downs, commissioning, submittals, closeout, etc. as defined in the contract documents and as required for a complete and fully operational system. Contractor to maintain heating in the building between October 1 and May 15 of each calendar year.
