Cooling Tower Meets Historical Guidelines For Landmark Buildings

Cooling Tower Meets Historical Guidelines For Landmark Buildings

Jan 9, 2020 | Case Studies, Insights


A charitable organization expanded its footprint in New York City’s Flatiron District by moving into an 11-story, 125,000-square-foot, historic building erected in 1930. The entire space was renovated and because of the landmark nature of the building, all publicly visible equipment had to be as inconspicuous as possible – including the rooftop Mesan cooling tower that was integrated seamlessly into the existing HVAC infrastructure.


To enable it to blend in with its surroundings, two key steps were taken: 1) Plume abatement and 2) Exterior dulling. Water-vapor plume occurs normally during operation, and HIGHMARK was able to accomplish plume abatement. In addition, HIGHMARK oversaw the dulling of the stainless-steel exterior finish to minimize light reflection and visibility.

Mesan Cooling Tower



Location: Application: Project type: Technologies: Project size: Year of completion:
Historic landmark building from 1930 in the Flatiron District, New York City Commercial
  • Mechanical, Electrical & Plumbing (MEP)
  • Engineering
  • Cooling tower installation and plume abatement
  • Water filtration
  • 11-story commercial building
  • 125,000 square feet




The project consisted of several steps.

1) The first step was to transport the compact and flexible Mesan cooling tower to the building for installation.

Mesan Cooling Tower
Mesan Cooling Tower

2) After careful inspection, the HIGHMARK team oversaw the lifting of the equipment onto the roof to achieve a successful installation.

Mesan Cooling Tower

3) To keep interior water as clean as possible, a VAF water filtration system with basin sweepers was installed to remove debris and prevent bacterial growth.

Mesan Cooling Tower

4) The water is kept in constant motion to maintain optimal cleanliness.

Mesan Cooling Tower

5) The final result: the cooling tower’s plume abatement functioned properly, the exterior was sufficiently dulled and the interior water was exceptionally clean.

Mesan Cooling Tower

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