Variable Air Volume Units - Withair® Heating and Cooling, Air Conditioning, Heat Pump, Chiller, Industrial Process Cooling & Heating Systems, and Indoor Air Quality

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Variable Air Volume Units

Unparalleled Design Flexibility, Ultimate Flexibility For Complete Solutions.

Proven performance backed by careful engineering

Built for High Performance and Quality Results, Designed to Optimize Your HVAC System.

Variable air volume units reduce energy costs and minimize carbon footprint. Withair’s single duct VAV boxes, from 80 to 8,000 CFM, provide high performance and set the standard in the industry for construction, performance, and quality. Our fan-powered terminal units, available as parallel and series, provide operating cost savings through reduced central fan horsepower and use of waste heat recovery.

Withair® variable-air-volume units (VAV) are among the industry leaders in quality and reliability and are designed to meet the specific needs of today’s applications. Our units feature rugged variable-air-volume units construction, are available in several different profiles to suit the space available, and all utilize digital controls for energy-efficiency and to facilitate interface with building management systems.

Build performance, reliability and flexibility into your custom air handler solution !

State of The Art Feature

Flexibility and Versatility

By adapting to the specific needs of virtually any project requirement — for faster, less-complicated, less-expensive installations. With capacities ranging from 200-3,000 cfm — and the ability to integrate with hydronic or DX applications.
Advanced Technologies

To meet and exceed demanding building performance criteria, our air handling units integrate advanced HVAC technologies including:
* Class 6 leakage rating
* ECM fan array
* Energy recovery
* Heat options
* Thermal breaks
* Configurable design
Energy Efficiency & Reliability

For lower utility bills, Withair® includes advanced, efficient electronically commutated motors (ECMs) in all of its terminal products.

That’s enhanced by extensive testing at the factory to ensure performance. Models are available with controls and piping packages that arrive mounted, wired and commissioned for easier installations and less setup work on project location.
Quiet Performance & Dependable Comfort

With sound levels up to 8 dB(A) quieter than products with constant-volume fans, so occupants can be more comfortable and productive.
From the additional dehumidification abilities that are possible with fans operating at low speeds for an extended period of time.

Types of Variable-Air-Volume Units (VAV)

A diverse lineup of model series is offered that neatly fits the application, scale, and conditions of the installation site.

Withair® Variable-Air-Volume Units (VAV)

Variable Air Volume Units (VAV)

At a glance

* Airflow range: 1,500 to 35,000 CFM

* 2-pipe or 4-pipe system combinations

* Power Supply: 50 and 60 Hz

* Ideal Applications: Office building; Healthcare facilities & pharmaceuticals; Industrial & specialty applications;
Commercial spaces; Hospital; Hotel; Airport; Schools; Factory; etc.

Commercial Indoor Air Handlers

At a glance

* Airflow capacities: 200 to 800 CFM

* 2-pipe or 4-pipe system combinations

* Power Supply: 50 and 60 Hz

* PSC, High static PSC, ECM motors

* Ideal Applications: Hotels, Office, Apartments, Hospitality, Healthcare, Education, Hotels, Apartments, and other multi-room buildings.

Semi-custom Indoor Air Handlers

At a glance

* Airflow capacities: 800 to 2,400 CFM

* 2-pipe or 4-pipe system combinations

* Power Supply: 50 and 60 Hz

* PSC, High static PSC, ECM motors

* Ideal Applications: Hotels, Office, Apartments, Hospitality, Healthcare, Education, Hotels, Apartments, and other multi-room buildings.

Commercial Outdoor Air Handlers

At a glance

* Airflow capacities: 177 to 354 CFM

* 2-pipe or 4-pipe system combinations

* Power Supply: 50 and 60 Hz

* PSC, High static PSC, ECM motors

* Ideal Applications: Hotels, Office, Apartments, Hospitality, Healthcare, Education, Hotels, Apartments, and other multi-room buildings.

Semi-custom Outdoor Air Handlers

At a glance

* Airflow capacities: 200 to 500 CFM

* 2-pipe or 4-pipe system combinations

* Power Supply: 50 and 60 Hz

* Ultraviolet germicidal lamps option

* PSC, High static PSC, ECM motors

* Ideal Applications: Hotels, Office, Apartments, Hospitality, Healthcare, Education, Hotels, Apartments, and other multi-room buildings.

Custom Air Handlers

At a glance

* Airflow capacities: 200 to 1,600 CFM

* 2-pipe or 4-pipe system combinations

* Power Supply: 50 and 60 Hz

* Ultraviolet germicidal lamps option

* PSC, High static PSC, ECM motors

* Ideal Applications: Hotels, Office, Apartments, Hospitality, Healthcare, Education, Hotels, Apartments, and other multi-room buildings.

Semi-Custom Central Station Air Handlers

At a glance

* Airflow capacities: 300 to 1,400 CFM

* 2-pipe or 4-pipe system combinations

* Power Supply: 50 and 60 Hz

* Ultraviolet germicidal lamps option

* PSC, High static PSC, ECM motors

* Ideal Applications: Hotels, Office, Apartments, Hospitality, Healthcare, Education, Hotels, Apartments, and other multi-room buildings.

Double-Wall Air Handlers

At a glance

* Airflow capacities: 200 to 1,400 CFM

* 2-pipe or 4-pipe system combinations

* Power Supply: 50 and 60 Hz

* Ultraviolet germicidal lamps option

* PSC, High static PSC, ECM motors

* Ideal Applications: Hotels, Office, Apartments, Hospitality, Healthcare, Education, Hotels, Apartments, and other multi-room buildings.

Datacenter Cooling Systems

At a glance

* Airflow capacities: 118 to 354 CFM

* 2-pipe or 4-pipe system combinations

* Power Supply: 50 and 60 Hz

* Ultraviolet germicidal lamps option

* PSC, High static PSC, ECM motors

* Ideal Applications: Hotels, Office, Apartments, Hospitality, Healthcare, Education, hotels, apartments, and other multi-room buildings.

Indoor/Outdoor Small Air Handlers

At a glance

* Airflow capacities: 200 to 800 CFM

* 2-pipe or 4-pipe system combinations

* Power Supply: 50 and 60 Hz

* Ultraviolet germicidal lamps option

* PSC, High static PSC, ECM motors

* Ideal Applications: Hotels, Office, Apartments, Hospitality, Healthcare, Education, hotels, apartments, and other multi-room buildings.

Semi-Custom Air Handlers

At a glance

* Airflow capacities: 824 to 2,825 CFM

* 2-pipe or 4-pipe system combinations

* Power Supply: 50 and 60 Hz

* Ultraviolet germicidal lamps option

* PSC, High static PSC, ECM motors

* Ideal Applications: Hotels, Office, Apartments, Hospitality, Healthcare, Education, hotels, apartments, and other multi-room buildings.

Vertical High Rise Type Fan Coil Units

At a glance

* Airflow capacities: 600 to 1,200 CFM

* 2-pipe or 4-pipe system combinations

* Power Supply: 50 and 60 Hz

* Ultraviolet germicidal lamps option

* PSC, High static PSC, ECM motors

* Ideal Applications: Hotels, Office, Apartments, Hospitality, Healthcare, Education, hotels, apartments, and other multi-room buildings.

Still not sure which system is right for you?

Contact Withair® Senior Sales Engineer

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