Denair HVAC NYC carried out survey of the existing equipment and provided report. Modified piping for existing radiators and provided new control valves. Furnished and installed new AC units, exhaust fans, ductwork, piping, radiators, acoustic lining, air outlets, transfer duct, condensate pump and piping, fire/smoke dampers, leak detectors, control wiring and thermostats. Provided test and balancing, system start-up and fire stopping. Performed all welding / brazing work and coordinated tie-ins to building system.