Fort Riley is taking its barracks to the next level with ALDES

The U.S. Military is to install over 300 ALDES ZRT-PDILs to 3 of its barracks in Fort Riley

PHOTO CREDIT – U.S. Army’s website –

Fort Riley is a United States Army installation located in North Central Kansas is to install 300 Aldes ZRT-PDILs as well as several CAR3s to 3 of its barracks. Although construction is not projected to begin until spring, behind the scenes work has been taking place for months.

The three barracks in this phase of renovation have long histories! All were built in 1970 and have undergone minor renovations over the years. While the HVAC systems and some interior components were repaired in 2006, one has sustained major damage from a lightning strike while the other two stopped housing Soldiers back in 2018. (1)  Although the structural changes are important, the main motivation behind the project is to boost the soldiers’ morale and to offer them a healthy and enjoyable living environment.  “It’s not just about the requirements. You also have to consider colors, materials, everything that’s going into the rooms – because all that can change morale” said Brett Deam, architect, Engineering Services Division. The master planning team agreed that the morale of the Soldiers is a huge consideration when they create their design plans. “Really, the goal of our mission is to boost morale and provide better living conditions for these soldiers” said Blanchard Brown, engineering technician, Master Planning Division. (2)

Aldes Parallel Damper In-Line Zone Terminals (ZRT-PDIL) are designed to introduce flexibility and dynamic control to central supply or exhaust ventilation systems. Used in both large and small systems, the ZRT-PDIL regulates ventilation without the need for individual fans or traditional VAV terminal units.

Each ZRT-PDIL is a two-position, pressure-independent terminal with a control damper to regulate high limit on-demand airflow control and integral passive regulators for automatic air balancing of the continuous and boost airflow setpoints. This unique combination provides flexible control schemes without the need for expensive pneumatic, electronic, or DDC control systems.

The ZRT-PDIL is primarily used for combination low-flow indoor air quality ventilation or make-up air, and on demand high-flow spot ventilation using the same central exhaust or supply fan system. This is achieved by integrating a minimum Constant Airflow Regulator (CAR) in the terminal end panel and in-line with the branch duct. The maximum airflow is controlled by a series of 24 VAC or 120 VAC powered motorized damper(s) and a secondary CAR airflow controller. With the maximum-air motorized control damper completely closed, the continuous CAR allows steady, low-volume airflow control (Continuous and Boost Constant Airflow Regulators may be CAR-II or CAR3 depending on required airflow).

Aldes representative Associated Air Products in Kansas, facilitated the sale of Aldes products to this project.

To see other projects where Aldes products have recently been installed, visit our Featured Projects Map.

(1) (2) S. Military website –

VENTILATION: how to protect yourself against COVID-19

Is opening windows enough to fight the virus? Does the virus spread more easily with ventilation?

This year ventilation has been a topic of conversation in households across North America. ALDES is here to provide clarity and answer your questions!  A specialist in indoor air quality, ALDES sheds light on what you need to know about the importance of ventilation in light of COVID-19.

Opening windows is sufficient in removing the SARS-CoV-2 virus.

FALSE. Opening windows is easy to do, but it is not enough because it helps to dilute the concentration of the virus only while the window is open. Opening windows can also have negative thermal and acoustic impacts as well as poor air quality when the outside environment is polluted. It must be supplemented by a mechanical ventilation system (CMEV) to ensure a continuous and controlled renewal of air, so as to avoid an accumulation of CO2. A high concentration of CO2 reflects poor ventilation and may therefore contribute to the spread of the SARS-CoV-2 virus. (1)

Mechanical ventilation reduces the risk of transmission.

TRUE. Mechanical ventilation reduces the risk of transmission of the virus by a factor of 10. (2) It is safe to say that a well-ventilated room lowers the risk of transmission and is better for your health.

The SARS-CoV-2 virus can live several days suspended in the air.

FALSE. The virus is spread either by droplets or by airborne microparticles. It can stay several hours in suspension. Maintaining ventilation is therefore essential for renewing the air and preventing the virus from remaining airborne. (3)

Once captured by the filter, the virus dies.

TRUE. The filter will not let the virus escape and go through the ventilation system – Once captured by the filter, the virus dries and dies by itself. (4)

The use of stand-alone air purifiers in a room is enough to free the air from the virus.

FALSE. An air purifier does not renew the air. It is a good complement to mechanical ventilation, which constantly renews the air, treats other indoor air pollutants and thus meets regulatory ventilation standards.

Older buildings do not have ventilation solutions to renew air.

FALSE. There are different mechanical ventilation solutions available and suitable for refurbishment, which guarantee a continuous renewal of the air in each room of the home. An older building does not mean that the ventilation system is inadequate. (5)

1) Agence régionale de Santé PACA (ARS) : COVID-19 – Synthèse des recommandations de gestion de la ventilation /air intérieur
(2) The Lancet Respiratory Medicine, 2020
(3) Haut Conseil de la Santé Publique (HCSP) – Avis relatifs à la réduction du risque de transmission du SARS-CoV-2 par la ventilation et à la gestion des effluents des patients COVID-19
(4) CAMFIL : Virus et Filtration
(5) &

The Aldes CAR3®, winner of the 2021 AHR Expo Ventilation Innovation Award

The 2021 AHR Expo supposed to be held in Chicago early next year, was cancelled due to the coronavirus pandemic. However, the organizer’s annual awards event, which usually occurs at the same time as the show, still took place! This annual competition honors the most inventive and original products, systems and technologies showcased at the AHR Expo. Aldes’ Vertical Fan-Coil Unit was also amongst the finalists of the Ventilation Innovation category last year.

Submissions were collected over the summer and then reviewed by a panel of third-party judges made up of distinguished ASHRAE members. The competitors are evaluated based on overall innovative design, creativity of the product or service offered, application, as well as value and market impact. “We continue to be surprised by what the innovators in this industry bring to market,” said Mark Stevens, Show Manager. “Despite the challenges 2020 has presented, we are committed to recognizing the incredible innovators in our industry.”

The CAR3® constant airflow regulators feature a state-of-the-art design with industry exclusive dual-side airflow adjustability and greater airflow ranges for a variety of applications. The patent pending airflow technology allows you to set or change the airflow quickly, in supply or exhaust applications, without removing the CAR3® from the duct. The CAR3® solely operates on duct pressure and requires no external power supply or sensors, and will be rated for use in air temperatures ranging from -25°F to 140°F (-32°C to 60°C). Each regulator features a dual-side adjustment dial to allow for changes in airflow setpoint while installed in either the supply or exhaust direction without removing the regulator from the duct. The constant airflow regulator is enhanced with antimicrobial, anti-static, and flame-retardant additives for increased durability.

Learn more about the AHR Expo 2021 Innovation Award Winners and read the Official Press Release.

Read more about an exciting project featuring the CAR3®.

Visit and for more information about the CAR3® or contact your Aldes sales representative.

Luxury Energy-Saving Hotel on La Salle Street in Chicago to install ALDES ZRT® & CAR3®


The Reserve Hotel, part of the Marriott’s Autograph Collection, is a 234-room hotel named after the Federal Reserve Bank next door. This sumptuous hotel is under construction and supposed to open late next year (2021) on floors 18 through 22 of the historic former Continental Bank building. The construction will include 250 ALDES Zone Register Terminals (ZRT®) and 228 ALDES Constant Airflow Regulators (CAR3®).

Developers of the Reserve Hotel have qualified for $21.25 million in financing for energy-related work designed to lower costs over time. The financing is the first project approved by the Chicago PACE, or Property Assessed Clean Energy, a program the Illinois General Assembly authorized statewide in 2018. The first 12 stories of the Continental Bank Building are already occupied by the JW Marriott Hotel. The CEO of the Prime Group, the developer of the Reserve Hotel, wagered on demand for a luxury hotel in the heart of the city’s financial district back in 2010 when he helped develop the JW Marriott Chicago. This grand project also involves W.E. O’Neil Construction as well as Chipman Design Architecture, and HVAC design/build by Advance Mechanical Systems.

This sumptuous project will include 250 ALDES Zone Register Terminals (ZRT®)  which are designed to introduce flexibility and dynamic control to central ventilation systems. Used in both large and small systems, the ZRT regulates ventilation without the need for individual fans. In addition, 228 ALDES Constant Airflow Regulators (CAR3®) will be installed before the opening of the hotel that is set to open sometime next year. For this project, the ZRT® and CAR3® are outlined to be installed for toilet exhaust in guestrooms to ensure constant airflow and minimize stack effect. The ZRT®-S will be tied into the room occupancy sensors making sure fresh air is provided when necessary, ideal for a hotel. Each CAR3® is built in the U.S. using a proprietary blend of amorphous thermoplastic resin treated with antimicrobial, anti-static, and flame-retardant materials to provide reliability and longevity. The CAR3® is calibrated to respond to changes in pressure with no input from an external power source or signal. Each CAR3® is also available in a variety of assemblies to provide a complete solution.

Aldes representative Air Products Equipment Company in Chicago, facilitated the sale of Aldes products to this innovative structure.

To see other projects where Aldes products have recently been installed, visit our Featured Projects Map.


Breathtaking tower in NYC to install 157 ALDES ZRT®

The magnificent 500-foot-tall tower, 280,700-square-foot development at 42 Trinity Place, also known as 77 Greenwich Street, brings a new 56,000 square foot elementary school, 90 condominium apartments and retail to the site. This mixed-use tower includes 157 ALDES Zone Register Terminals (ZRT®) and 12 Constant Exhaust Registers with integral fire damper.

The school will fill the first eight floors, as well as part of the preserved and restored Robert & Anne Dickey House, an 1810 landmark. A 4,800-square-foot retail space will also occupy part of the ground floor, along with lobbies for the school and the apartments. The residents of this tower will get to enjoy Hudson River and New York Harbor views. 

Built to LEED standards, the building strives to be environmentally sustainable. It includes technology like variable refrigerant flow heating and cooling for optimal year-round temperatures and energy efficiency. Included are 157 ALDES Zone Register Terminals (ZRT®) which are designed to introduce flexibility and dynamic control to central ventilation systems. Used in both large and small systems, the ZRT regulates ventilation without the need for individual fans. In addition, 12 Constant Exhaust Registers with integral fire dampers regulate airflows in duct systems to constant levels. Responding to duct pressure changes caused by thermal stack effect, building pressure, and dust-clogged filters the Constant Exhaust Registers eliminate the need for on-site balancing within the building.

Aldes representative A.D.E. in New York—the leading manufacturer representative of HVAC products in the Big Apple — facilitated the sale of Aldes products to this innovative structure.

FXFOWLE architects is designing 42 Trinity Place, and the developer is Trinity Place Holdings.

To see other projects where Aldes products have recently been installed, visit our Featured Projects Map.

Launching the Next Generation of Airflow Regulator Technology

At Aldes North America, we never stop innovating. As part of our commitment to providing world-class ventilation technology, we’re proud to announce the launch of the new CAR3®, a next generation constant airflow regulator.

A core product for Aldes North America for years, the constant airflow regulator has received a major update that incorporates industry-exclusive dual-side airflow adjustability and provides greater range of airflow for diverse applications. The regulators are calibrated to respond to pressure changes without need for an external signal or power source. It is available in a variety of assemblies to provide a complete solution.

Quality Construction

So, what’s not changing? Our customers can expect the same world-class function and performance —the same best-in-class durability, reliability, and design — from the CAR3® as always but with added precision and more options. Each unit is built in the United States and is constructed from a proprietary blend of amorphous thermoplastic resin.

Treated with antimicrobial, anti-static, and flame-retardant materials, the regulator offers high-end longevity and reliability. It requires no maintenance under normal conditions and is guaranteed for an industry-leading seven years.

Leading the Industry

Aldes North America is an industry leader in manufacturing and distributing ventilation systems and components for residential and commercial markets. We specialize in ventilation products and systems for homes, multi-family dwellings, hotels, schools and other commercial applications. Our residential and commercial air-to-air heat and energy recovery solutions include airflow balancing components, residential in-line fans and patented demand control terminal devices for commercial applications.

The CAR3®, like every Aldes product, combines decades of innovative know-how and experience in creating world-class quality. Our products are found in high-performing homes and buildings across the U.S. and Canada. For more information about the new CAR3®, visit and

O’Rourke Family Vineyards Winery Project

Image Credit: FB/ O'Rourke Family Vineyards

Image Credit: FB/ O’Rourke Family Vineyards

This multi-phase project at O’Rourke Family Winery in Lake Country, British Columbia, Canada recently installed four Aldes Advanced Commercial Heat Recovery Ventilators (ERV’s), designed for large commercial applications that allow custom options such as hot water and chilled water coils. The project also has one InspirAIR® Commercial unit with a Fixed Plate Core, which offers high efficiency and easy to-configure options.  Each HRV handles airflows between 1,000 cfm and 3,000 cfm.

Once the project is complete, the property will feature unbelievable wine caves with 300 meters of winding tunnels and 12,000 square-feet of cave space. Currently under construction is the main winery, theatre, a restaurant, event room, formal wine tasting room, and the Owner’s Home.

Manufacturer’s representative Trane Kelowna facilitated the Sales of the Aldes solutions for O’Rourke Winery.

Ecora Engineering from Penticton, BC is the mechanical engineer, and mechanical contractor is Christman Plumbing and Heating.

Aldes’ quiet, high-efficiency HRV solutions are perfect for improving indoor air quality while saving energy and reducing operating costs. From automatic airflow controls to advanced heat and energy recovery ventilators, Aldes has the right product for your project. Aldes North America products can be found in buildings across North America. To see other projects where Aldes products have recently been installed, visit our Featured Projects Map.

Ventilation and COVID-19

At Aldes, healthy indoor air is not just what inspires us, it is what we deliver.  During these past few months of the COVID-19 crisis, we have all listened as infectious disease experts have attempted to provide answers to innumerable questions surrounding the transmission of the virus.

Many of those questions are from homeowners and building maintenance managers wondering how to reduce the spread of COVID-19 within a building or home using their HVAC system.

An abstract of a study published recently in the journal of Respiratory Medicine, The Lancet, links mechanical ventilation with a dramatic reduction in the time that droplets containing COVID-19 stay airborne in a room.  The more air exchange that an area gets, the less time particles remain in the air at mouth-level where they can be transmitted from person to person.  The study shows that in a well-ventilated space, the average time for half of the particles to fall is 30 seconds, whereas in the same space without ventilation, the time is over 5 minutes – that is 10 times longer!

Knowing this, to help keep yourself safe if you are in close proximity to someone who may have  COVID-19, it is very important to ensure that your ventilation system is operational and well-maintained.

If you have an HRV or ERV:

  • Ensure that the filters are clean.
  • Remove any blockages in the intake and exhaust grilles on the outside of the building.
  • Set the HRV to air exchange mode. High speed will bring in more outdoor air and move the air faster.
  • Do the “tissue test” at the air supply and exhaust grilles to ensure that air is flowing. Take a tissue and hold it up to the grille. It should quickly stick to the exhaust grilles and quickly blow away from air supply grilles.  If the tissue test shows no airflow at one or more grilles, contact a ventilation contractor.
  • Keep inside doors open at least slightly to allow air to flow freely in and out of the ventilation system.

Remember, the important thing is for the “bad” air to be replaced by fresher air.  Do not use ceiling fans or pedestal fans that recirculate air within the same room – in fact, these can be even worse than having no ventilation at all!

Finally, opening a window is always a great way to increase the air exchange when weather permits.

Aldes is at the forefront of Healthy Living – delivering fresh air to occupants of all buildings, for health, well-being and a better life for all of us.

Written by Chris Bender, Business Line Manager (ERV/HRV)

Charlie West Condos in Ontario to include 308 ALDES InspirAir® Compact

Charlie West Condos in Kitchener, Ontario to include 308 ALDES InspirAir® Compact ERV (Energy Recovery Ventilator) with EC motors providing high-efficiency ventilation and improve indoor comfort to residents.  With its impressive height reaching 26 storeys, Charlie West will create a sleek silhouette rising above Downtown Kitchener. The 245 chic condominium suites feature modern, high-end finishes and expansive windows that offer unrivaled views of Victoria Park with its majestic trees and lush landscaping.  Living there puts you directly on the new ION Light Rail Transit route. It’s a short walk from Google Canada’s new office and Kitchener’s Innovation District (home to global tech companies, startups and universities). The development is scheduled for completion in 2021.

Aldes InspirAIR® Compact Multi-Family Energy Recovery Ventilators (ERV) have been thoughtfully engineered for use in apartments, condos, and other multi-family dwellings. The ideal in-suite ventilation solution for high-rise construction, the E80-HRX and E130-HRX deliver exceptional performance in a compact, easy-to-install package. Both models include EC motors, Aldes’ exclusive EvacMAX™ on-demand boost for maximum ventilation, and FLEXControl, electronic calibration that eliminates the need for balancing dampers and improves overall efficiency.

Manufacturer’s representative O’Dell Associates, Inc. facilitated the sale of ALDES products at Charlie West.

Developer Momentum Partnership.

Aldes’ quiet, high-efficiency ventilation solutions are perfect for improving indoor air quality while saving energy and reducing operating costs. From automatic airflow controls to advanced heat and energy recovery ventilators, Aldes has the right product for your project. Aldes North America products can be found in buildings and high-performing homes across North America. To see other projects where Aldes products have recently been installed, visit our Featured Projects Map.

Enhancements to our Light Commercial Heat and Energy Recovery Ventilators

Deliver Healthy Air and Optimize Efficiency with Variable Speed Ventilation!

  • 0-10V inputs to continuously adjust the speed of the H/ERV. No more over- or under-ventilating providing the optimal amount of fresh air for any occupancy situation.
  • Wire the H/ERV directly to the building electrical main using our terminal block – no more power cords with plugs that need a separate electrical box to be installed.

Aldes is pleased to announce our Light Commercial H/ERVs can now be wired for continuously variable ventilation using one or two 0-10V inputs (one for the supply motor and one for the exhaust motor) which works with both EC and AC motors.  Or, you can still wire the units with the 24V dry contacts as well as Aldes wall controls – both options are supported on the same H/ERV.

In addition, all the H/ERVs now have a terminal block for the power connection, instead of a power cord with plug.  This makes it easier and saves the electrician time wiring the system to the building’s power supply and complies with electrical codes in North America.

The new models have new part numbers, to distinguish them from the previous units.  The new model numbers are the same as the old ones, with the addition of “-N”. For example, the E650L-Fi-EC becomes E650L-Fi-EC-N.

In addition, the -Ri models for recirculation defrost are no longer available. To order H/ERVs with recirculation defrost, simply add the appropriate recirculation kit to the order:

P/N 683900: Recirculation defrost option for 650 models

P/N 683950: Recirculation defrost option for 1100 models

P/N 683960: Recirculation defrost option for 1800 models

The existing models with power cords will continue to be available until
June 30, 2020.
Please do not hesitate to contact Aldes with any questions.

Click here to view the Light Commercial Product Line