The AI infrastructure buildout is the most significant demand driver the commercial HVAC equipment industry has encountered in a generation, and the race to capture that opportunity is reshaping investment, product development, and M&A across the sector.
The numbers are no longer ambiguous. Carrier Global reported Q1 2026 data center orders up more than 500% year-over-year, with backlog fully covering its $1.5 billion full-year target. Trane Technologies reported Americas commercial applied equipment bookings up more than 160% in Q1. Ecolab paid $4.75 billion to acquire CoolIT Systems, a direct-to-chip liquid cooling specialist. These are not coincidences. They are signals of a structural transition in where the HVAC industry's growth capital is going.
Traditional air cooling versus liquid cooling: The core tension in data center cooling in 2026 is between traditional air-cooled approaches — chillers, computer room air handlers, precision cooling units — and emerging liquid cooling architectures that bring coolant directly to chip-level thermal loads. AI accelerator chips from companies including Nvidia generate thermal densities that air cooling cannot efficiently manage at scale. The Ecolab-CoolIT deal is the clearest evidence that the largest HVAC-adjacent companies see liquid cooling as a strategic necessity, not an optional add-on.
Where traditional HVAC equipment still dominates: Liquid cooling addresses chip-level heat rejection, but facility-level cooling — the systems that manage ambient temperature, humidity, and airflow in the data halls themselves — still relies on traditional HVAC equipment. Chillers, cooling towers, precision air handling units, and building management systems remain essential in every data center regardless of how individual server racks are cooled. This is the market where Trane, Carrier, Johnson Controls, and other established HVAC manufacturers have deep competitive positions.
Private equity is paying attention: Capstone Partners noted in their April 2026 HVAC Equipment M&A update that they currently have two HVAC liquid cooling component manufacturing deals in market. EBITDA multiples in the HVAC equipment sector averaged 10.9x in 2025, up nearly two turns from 9.0x in 2024. The premium is being paid for companies with data center exposure.
What this means for HVAC contractors: For the vast majority of HVAC contractors, the data center cooling boom is indirect. Data center construction creates commercial project opportunities in markets where hyperscale facilities are being built — Northern Virginia, Phoenix, Dallas, Columbus, and Chicago metropolitan areas are seeing the highest concentration. Contractors with commercial chiller and applied equipment capabilities who are operating in those markets are seeing project volumes that the residential market cannot match.
The longer-term signal: Every AI chip that runs hotter than the previous generation expands the addressable market for cooling solutions. The thermal management problem that the data center industry is trying to solve is getting harder, not easier, as compute density increases. For HVAC manufacturers, that is a generational tailwind. For contractors and distributors, the equipment categories that serve it — applied chillers, precision cooling, liquid cooling integration — are the highest-growth segments in the industry for the foreseeable future.
