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NYU Langone

COVID-19 RESPONSE

Location: 550 1st Avenue, NY, NY
Project Type: Health Care System?
Project Category: Construction Management

Air Handling Unit (AHU) Replacement

Nelson Air provided Construction Management (CM) Services to remove an existing air handling unit (AHU) and replace it it with the install of a new 100% totally knocked down unit. Before starting the project, the existing unit was demolished, and temporary modifications with new ductwork for the existing roof mounted unit were completed. This project included demolition, concrete, waterproofing, masonry work, mechanical, electrical, and building management systems (BMS). The AHU that was replaced produced a 70,000 CFM (cubic feet per minute) airflow. Nelson Air extended the concert pad for the replacement unit, demolished the existing AHU, and rigged pieces of replacement unit through elevator shaft.

Clean Steam Generator Upgrade

Nelson installed CSG/CSH on the main air handling units (AHU) that serve the hospital across two buildings on campus. This work included demolition of walls and ceilings, concrete pads for equipment, structural steel additions to outside units, mechanical, electrical, plumbing, building management systems (BMS), waterproofing, roofing work, waste removal, cleanup, and laborers. Nelson also installed 10 clean steam generators and installed seven clean steam humidifiers for operationg rooms (OR). These items were installed and tested in compliance with NYU and did not impact any OR’s during tests or installation.

Contracted to start the AHU replacement program for the Hospital?s OR Suites. The first part of the program includes (3) units; AHU 4, 5& 7. The intent is to replace all five existing AHUs. This work includes installing a temporary / permanent roof mounted AHU to serve the area that AHU 5 serves before it is taken out of commission. Once AHU 5 is completed, a temporary duct from AHU 5 will tie into AHU 4?s duct to serve it?s area, then AHU 4 can be replaced. The above work includes, demolition, concrete, exterior wall modification, new switch installed in an existing cellar switchboard and new feeder run up to MER, 5,000 sq. ft. of a new roofing, structural steel for the roof mounted AHU and structural trestle for the main roof ductwork, heavy protection on the roof for storage of AHU sections and around new roofing work, mechanical, plumbing work that includes new vents and roof drains, BMS, waste removal, clean up and laborers. -Installed/Built (2) Air Handling Units(AHU) that server OR’s, Installed one Rooftop?Unit(RTU) on that will server?as a temp (RTU) to server OR’s/floors while other AHU’ or RTU’s are being replaced in the future?

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