HVAC SYSTEM
Split System Units serve the elevator machine rooms, security offices, and MDF rooms in the building and are on emergency power in order to maintain the setpoint in a fire alarm event.
Overall, FMC tower utilizes two separate HVAC systems to control the environment of its commercial/office portion and its residential portion. The lower commercial and office spaces are served by the three indoor air handling units in the basement and the multiple floor by floor air handling units on each of the office floors. and is on a variable air volume system. The cooling for the spaces is provided by chilled water from one induced draft cooling tower (CT-1) and the chillers on level 27, which runs through the cooling coils in the air handling units. The heating in the lobbies is provided by electric baseboard radiators and by unit heaters in the ducts. Heat exchangers and boilers also provide heating to the office spaces. The Residential floors are served by the outdoor makeup air unit on level 47 and, unlike the office portion, is not on a variable air volume system. The cooling for the residences is provided by chilled water from all four induced draft cooling towers as well as the chillers on level 27. The residences are heated using unit heaters in the ductwork, gas fired boilers on the penthouse, and two plate and frame heat exchangers. In both of the systems, the boilers and heat exchangers provide heat to water for the heating coils and the unit heaters are heated electrically. The residential and commercial portions of the tower both have their separate water sources.
Possible improvements for the HVAC system include using a second makeup air unit so that in case the first unit goes down, the second one can support the loads of the residences until the first unit is fixed. Also, a steam system for the heating in the building may be an alternate option because it would be able to provide heat and humidification to the air handling units while still providing hot water when the steam condenses.
Overall, FMC tower utilizes two separate HVAC systems to control the environment of its commercial/office portion and its residential portion. The lower commercial and office spaces are served by the three indoor air handling units in the basement and the multiple floor by floor air handling units on each of the office floors. and is on a variable air volume system. The cooling for the spaces is provided by chilled water from one induced draft cooling tower (CT-1) and the chillers on level 27, which runs through the cooling coils in the air handling units. The heating in the lobbies is provided by electric baseboard radiators and by unit heaters in the ducts. Heat exchangers and boilers also provide heating to the office spaces. The Residential floors are served by the outdoor makeup air unit on level 47 and, unlike the office portion, is not on a variable air volume system. The cooling for the residences is provided by chilled water from all four induced draft cooling towers as well as the chillers on level 27. The residences are heated using unit heaters in the ductwork, gas fired boilers on the penthouse, and two plate and frame heat exchangers. In both of the systems, the boilers and heat exchangers provide heat to water for the heating coils and the unit heaters are heated electrically. The residential and commercial portions of the tower both have their separate water sources.
Possible improvements for the HVAC system include using a second makeup air unit so that in case the first unit goes down, the second one can support the loads of the residences until the first unit is fixed. Also, a steam system for the heating in the building may be an alternate option because it would be able to provide heat and humidification to the air handling units while still providing hot water when the steam condenses.