Custom Air Handling Units

Baikal’s AHUs are custom built for the customer’s needs. No two units that we manufacture are the same. Every AHU that we build is custom made for each customer.

Baikal Mechanical specialists can measure your existing unit if you are looking for a replacement, or we can survey a new location for a completely new unit. Either way, our engineering staff will take measurements to ensure the new unit is fully optimized for the space available.

Because our units are all custom, your unit can be any dimensions dictated by your space or existing unit. All sheet metal and extruded parts are designed, cut, and manufactured in our Brooklyn facility. Baikal prides itself on manufacturing air handler units in the USA. The parts are then preassembled before they are delivered to the job site.


Custom Air Handling Units - Baikal custom air handle unit

Unlike predesigned, pre-packaged units from other manufacturers, Baikal AHUs are modular in design, which allows for easy transportation to the job site. Most parts will fit through a standard office door, which makes maneuvering to the job site easier than using a crane. For larger parts (coils, etc.), a freight elevator can be used. Using a pre-packaged AHU from another company, you are forced to use a crane to get the unit from the street to the roof.

The modular design employed by Baikal allows for future updates to a unit. An example of this would be the addition of a HEPA section into a unit. For example, if there is adequate floor space to insert an additional section, the existing sections on the AHU could be separated and the new Hepa filter section could be inserted into the AHU. Because of the modular design, special rigging is not required to get units to a roof.

Baikal Air Handler Units use a fan array to supply the required CFM.


Through the use of fan arrays, Baikal’ Air Handler Units:

  • Use less energy
  • Less operating noise
  • Less vibration
  • Free maintenance

  • Baikal’ Air Handler Units use 2” thick double wall panels constructed of aluminum outside panel and galvanized steel inner panels. They are powder-coated, so these double-wall panels provide excellent corrosion protection.  The AHU has a 4” high base. Sloping drain pans are also used in the chilled water section to remove condensation and water away from the air stream.

Turn to the experts at Baikal Mechanicals

Handling It: A Guide on Custom Air Handlers

Air Handling Units or AHU; we do not pay much attention to them, but they do incredible work. The simplest definition for air handling unit is “a box containing a fan, coils, and filters.”

The purpose of an AHU is to condition and distribute air within a structure or a building. AHUs take fresh air from the outside, clean that air, heat or cool or humidify it, and then release it inside the building through the building’s ductwork. Most units have additional ducts that suck the dirty air out of the building and release it outdoors.

AHUs come in different types. There is the fan or blower coils type which include only a fan and a heat transfer coil to serve small rooms. There is the packaged AHU type which tend to single temperature zones in smaller buildings and other commercial applications. However, today we are going to discuss custom air handling units.

What are Custom Air Handlers?

A custom air handler is an air handling unit that is customized to meet any configuration the structure might require. Custom AHUs typically have the highest quality in terms of construction because they are used in industrial and institutional applications. These custom air handling units can handle high flow rates, harsh conditions, and very close controls.

They are also the AHU of choice for irregular spaces where standard packaged or modular AHUs are not applicable.

The best thing about custom AHUs is that they are fully customizable. You can have custom air handler manufacturers configure your unit to include literally any air processing components. You can also have them designed with walkways, service areas, and other spaces for easy maintenance and servicing.

The Benefits of a Custom Air Handler

Why do building owners and engineers choose custom air handlers? Here are just a few reasons.

  1. Built to Last – Custom air handling units have a long lifespan. Units can be made of aluminum, galvanized, or stainless steel which makes them ultra durable. Most AHUs are built to last for decades.
  2. Built to Withstand Pressure – Custom AHUs are designed to handle and endure higher pressures. This is why they are the preferred choice for buildings with high pressure requirements and application that need multiple filters.
  3. Return of Investment – Custom air handlers are more energy efficient, have lower installation costs, and have longer lifespans. This allows you to get a return on your investment in just a couple of years.
  4. Flexibility – Custom air handling unit manufacturers will meet your specific requirements for size, footprint, configuration, design, choice of construction materials, as well as components (i.e. fans, coils, filters, humidifiers, etc.)
  5. Easy to Maintain – Custom AHUs are easy to maintain. For instance, service access panels allow for easy and quick servicing or parts replacement.

Technical Specification of Custom Air Handlers

As mentioned, custom air handling units are fully customizable based on the building’s requirements and the owner’s desires. However, these are the basic parts of all AHUs.

  • Housing – The unit’s housing is where the AHU’s internal components are placed. This can be made from aluminum, galvanized, or stainless steel or other construction material.
  • Fan – The most important component of your custom air handler is the fan. The fan is used to push air into the building’s different spaces. Fans come in different types including airfoil, backward curved, backward inclined, and forward curved.
  • Heating or Cooling Coil – They are in charge of heating or cooling the air that comes from the outside, through the air handling unit, and into the building.
  • Filter – Filters prevent dust and other contaminants to enter the building’s air-conditioned area.
  • Humidifiers – Your unit can be fitted with a humidifier, especially if the application is in environments with cold temperatures.
  • Mixing Box – Here the return air, which is the air that circulates in the AHU and the fresh outside air is mixed, conditioned, and sent back into the building’s spaces.

Application of Custom Air Handlers

Custom air handlers are used for special capacity requirements or applications where standard manufactured equipment are not applicable. For instance, if there are physical or size constraints or abnormal connections.

Custom air handlers are typically the AHU choice for large industrial spaces, manufacturing facilities, laboratories, and other structures where standard units cannot fit.

They are designed and constructed so that the size, type of material, and components can be customized to meet specific performance requirements.

Custom air handling units provide tailor-fit solution to you air handling needs. And although these units are the most expensive type of air handlers, the benefits outweigh the costs many times over.

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