Addison

Addison HVAC Systems

Background

Addison is one of the most respected names in commercial HVAC manufacturing, best known for its Dedicated Outdoor Air Systems (DOAS) and highly configurable climate-control solutions. With more than 75 years of expertise, the company has built a strong reputation for delivering high‑efficiency, reliable, and application‑specific HVAC systems designed to create safer, healthier, and more productive indoor environments.

Since its founding in 1949, Addison has pioneered numerous innovations in outdoor air treatment, humidity control, and semi‑custom packaged equipment. The manufacturer consistently leads the industry with over eight generations of DOAS technology and a commitment to offering the lowest total cost of ownership in installation, energy use, maintenance, and integration.

We Are Addison

What Addison Is Best Known For

Dedicated Outdoor Air Systems (DOAS) Expertise

Addison is widely recognized as an industry innovator in DOAS technology, providing fresh, conditioned outdoor air to commercial and industrial facilities. Their systems support critical indoor air quality, humidity management, and ventilation requirements, especially in buildings with high occupancy or strict environmental demands.

Energy‑Efficient Engineering

Addison prioritizes reducing energy consumption without sacrificing performance. Many product lines feature advanced heat pumps, energy recovery options, and technologies like HybridAir and FrostShield, designed to maintain system efficiency even in demanding climate conditions.

Customizable & Application‑Specific HVAC Solutions

Addison’s equipment can be configured to meet precise design needs for complex applications such as data centers, healthcare facilities, educational campuses, and retail environments. Their reputation for reliability, customization, and long-term durability is a major reason they remain a top choice for mechanical engineers and facility managers.

Types of Addison Equipment We Provide

We offer the full range of Addison’s innovative HVAC systems, including but not limited to:

1. Packaged DOAS Units

• PR Series Packaged Systems — Highly configurable flagship DOAS units designed for demanding applications.
• PRAK & PR*Q Compact DOAS Systems — Space‑efficient solutions ideal for retrofit and constrained mechanical rooms.

2. Split Systems

• SC/SA Series Modular Split Systems — Versatile indoor/outdoor combinations for balanced performance.
• MA/MC Series Modular Splits — Designed for flexibility in layout and installation.

3. AK Series Compact DOAS

These units provide powerful outdoor air conditioning and dehumidification in a compact footprint, ideal for small to mid‑sized facilities.

4. Indoor Vertical Systems

• MI Series & MI Classic — Indoor vertical platforms optimized for vertical air distribution and minimal mechanical room space.

5. Energy‑Efficient Air Handling, Heating & Cooling
Addison’s broader system lineup includes:

• Rooftop units
• Air handlers
• Heat pumps
• Cooling distribution units
• Dehumidification systems

These options help meet a wide range of commercial HVAC design requirements.

Who Typically Benefits From Addison Solutions

Addison HVAC systems serve a diverse range of industries that require precise environmental control, including:

• Healthcare Facilities – For clean, controlled, and humidity‑balanced fresh air delivery.
• Educational Institutions – Ensuring proper ventilation for classrooms and large shared spaces.
• Hospitality & Retail – Creating comfortable guest experiences with consistent climate control.
• Data Centers – Supporting cooling and air quality needs in high‑heat, mission‑critical environments.
• Fitness Facilities & Grocery Stores – Managing moisture loads and maintaining occupant comfort.

Any commercial building requiring enhanced indoor air quality, reliable outdoor air treatment, or advanced humidity control can benefit from Addison’s engineered products.