[email protected] | 1-833-356-9872

The Towers Waldorf Astoria Residences , New York, NY

Installation of eFlow-CAR Dual Flow Motorized Regulators at the Waldorf Astoria: A ZRT Alternative Solution

As part of its ambitious $1 billion renovation, the management revamps its HVAC system, choosing the eFlow-CAR Dual Flow Motorized Regulators, a leading ZRT alternative solution, for improved air circulation and ventilation. The Waldorf Astoria installs nearly 400 units of the eFlow-CAR Dual Flow 8″ 50 min flow/295 max flow as well as 50 min flow/150 max flow regulators, an evident testament to the product’s efficiency and reliability.

What is ZRT?

Zone Register Terminal (ZRT) is a popular method to regulate airflow in centralized ventilation systems. ZRT devices provide on-demand control of the airflow, balancing the needs of individual zones or rooms with the central system’s overall performance. While ZRTs have their merits, many property developers and HVAC specialists are now considering alternative solutions that promise better energy efficiency, reduced installation time, and optimized airflow regulation.

The eFlow-CAR Dual Flow Motorized Regulator – A ZRT Alternative Solution:

One such prominent solution is the eFlow-CAR Dual Flow Motorized Regulator. Here’s why it stands out:

  1. Precision Control: The eFlow-CAR Dual Flow provides precise control over airflow, allowing for two CFM set points. This granular control ensures that different zones of a large establishment like the Waldorf Astoria get optimal airflow based on their unique needs.
  2. Energy Efficiency: The motorized mechanism behind the eFlow-CAR Dual Flow means it can automatically adjust airflow based on real-time needs, potentially leading to significant energy savings.
  3. Ease of Installation: With a simple design and user-friendly interface, the installation of the eFlow-CAR Dual Flow is swift and hassle-free.


The Waldorf Astoria New York is a symbol of luxury and grandeur in the heart of Midtown Manhattan. An iconic 47-story Art Deco structure situated at 301 Park Avenue, the hotel boasts a rich history and an unparalleled reputation in the hospitality industry.

The Waldorf Astoria’s decision to opt for the eFlow-CAR Dual Flow Motorized Regulators underscores the industry’s shift towards more efficient, reliable, and sustainable airflow solutions. As ZRT alternatives like eFlow gain traction, establishments worldwide can look forward to better indoor air quality, energy savings, and a more sustainable future.


Installation of eFlow-Products was undertaken by Command HVAC. The manufacturers representative, ADE Group,  facilitated the sale of eFlow products for this project.

Photo Credit: Waldorf Astoria


Visit eflowusa.net for product information and pricing or email [email protected]


Flow-CAR Dual Flow FACTS

● Diameters offered: 5”, 6”,8”
● Operating Pressure Range: 0.2” w.c. to 1.0” w.c.
● Maximum operating temperature: 140° F
● Features two built in eFlow-CARs to allow for min and max airflow
● Field adjustable CFM setpoint
● eFlow-CARs are composed of UL94v-0 ABS plastic
● eFlow-CARs are UL2043 classified
● Galvanised steel casing
● 24V power supply
● 8 second response time
● No maintenance required when used under normal conditions




Subscribe to our Newsletter & Event right now to be updated.