Which companies make CRAH for AI data centers?

This catalog lists 16 companies on CRAH / CRAC / fan walls / in-row units, 12 of them with listed equity: Airedale, Daikin, Envicool, Johnson Controls, Kingspan, Mitsubishi Electric, Munters, Schneider Electric, Swegon, Systemair, and 6 more.

How reliable are these CRAH / CRAC / fan walls / in-row units supplier placements?

The 16 placements on this part break down as 4 disclosed, 12 inferred. "disclosed" means the company or a filing says so; "reported" comes from trade press or a reference-design list; "inferred" is a taxonomy lead with no citation yet.

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Who makes CRAH for AI data centers

CRAH, CRAC, fan-wall, and in-row units circulate conditioned air across IT equipment in air-cooled halls, using either facility chilled water (CRAH) or an internal refrigerant circuit (CRAC).

CRAH units draw chilled water from the facility loop (6.05) and blow conditioned air across server intake; CRAC units carry their own compressor instead of relying on facility chilled water. Fan walls and in-row units are denser evolutions of the same function, pushing more air per rack as air-cooled density rose before designs crossed over to liquid cooling. As AI racks move chip heat into liquid loops (Layer 5), CRAH capacity does not disappear — it typically shrinks to cover the residual air-cooled heat load per rack (networking, storage, lower-density equipment) plus emergency and backup air cooling, even in halls that are mostly liquid-cooled. Where a facility stays fully air-cooled, CRAH and fan-wall counts still scale directly with heat load. Investors should watch the shift in mix between CRAH-served air cooling and liquid-side CDUs as the main determinant of demand here, and how much redundant CRAH capacity operators retain per rack even in liquid-first designs.

AI delta: Liquid cooling absorbs most of the chip heat load in AI racks, so CRAH and fan-wall demand per rack falls even as total site CRAH capacity keeps growing to serve the residual air-cooled load and act as backup.

Appears at:Enterprise / small colo Large colo / hyperscale building AI campus GW-class campus· cooling:airhybrid — Sole cooling method at air-cooled enterprise and hyperscale halls; shrinks to a residual and backup role per rack once a site is liquid-cooling-first at ai_campus and gw_class scale.

Companies on this part (16)

Show:

Company	Role	Ownership	Ticker	Price	1d	Confidence	Note
Airedale · unit of Modine	manufacturer	subsidiary	MOD*			inferred
Daikin	manufacturer	public	6367.T	21185 JPY	-0.7%	inferred
Envicool	manufacturer	public	002837.SZ	44.38 CNY	+1.8%	inferred
Johnson Controls	manufacturer	public	JCI	144 USD	+0.1%	inferred
Kingspan	manufacturer	public	KRX.IR	89.35 EUR	-2.5%	inferred
Mitsubishi Electric	manufacturer	public	6503.T	4770 JPY	-2.3%	inferred
Munters	manufacturer	public	MTRS.ST	131 SEK	+4.0%	inferred
Schneider Electric	manufacturer	public	SU.PA	231 EUR	-1.4%	inferred	Uniflair
Swegon · unit of Latour	manufacturer	subsidiary	LATO-B.ST*			inferred
Systemair	manufacturer	public	SYSR.ST	85.60 SEK	+0.5%	inferred
Trane	manufacturer	public	TT	445 USD	-0.9%	disclosed	· source
Vertiv	manufacturer	public	VRT	194 USD	-0.2%	disclosed	Liebert · source
Huawei	manufacturer	private				inferred
Nortek Data Center Cooling	manufacturer	private				disclosed	Madison Industries · source
Rittal	manufacturer	private				disclosed	· source
Stulz	manufacturer	private				inferred

Who competes here

The same table read the other way: every company above competes for CRAH / CRAC / fan walls / in-row units sockets. Confidence tags matter — an inferred placement is a lead, not a confirmed rivalry.

Nearby parts

Previous in layer: Dry coolers, adiabatic/evaporative units, cooling towers, fans & motors
Next in layer: Air handling, economizers, filtration
Layer: Layer 6 — Facility cooling & HVAC

From the blog

Part of the day: CRAH / CRAC / fan walls / in-row units 2026-10-17

Latest feed

[AI Infrastructure Insight] How AI infrastructure will be designed for the future — newsroom:sk-hynix, 2026-10-22
The design of future AI infrastructure will require integrating advanced compute, cooling, and power elements from various parts of the supply chain.
Schneider Electric sees record-high Q3 revenue on global data center boom — Utility Dive, 2026-10-19
Schneider Electric reported record Q3 revenue driven by the global data center expansion, noting higher organic growth in China and East Asia compared to North America.
AVC unveils 6MW In-Row CDU at OCP, adds predictive cooling — DigiTimes, 2026-10-14
AVC introduced a 6MW in-row Coolant Distribution Unit (CDU) at the OCP Global Summit featuring predictive cooling capabilities.
Wistron, Wiwynn spotlight liquid-cooled AI compute, storage at OCP — DigiTimes, 2026-10-13
Wistron and Wiwynn showcased liquid-cooled AI computing and storage solutions at the Open Compute Project (OCP) event.
Taiwan manufacturers to showcase AI data center hardware at OCP summit in San Jose — DigiTimes, 2026-10-12
Taiwanese manufacturers are scheduled to present various AI data center hardware components, including rack systems, cooling solutions, and power equipment, at the upcoming OCP Summit in San Jose.
Trane Technologies Schedules Third Quarter 2026 Earnings Conference Call — newsroom:trane, 2026-10-08
Trane Technologies has scheduled its third quarter 2026 earnings conference call.
Qisda's Aewin targets 200kW liquid-cooled AI servers — DigiTimes, 2026-10-08
Qisda's Aewin brand is targeting the market with 200kW liquid-cooled AI servers designed for high-density data center deployments.
LG lands 5GW North American data center cooling deal — DigiTimes, 2026-10-06
LG has secured a major contract to provide cooling infrastructure for a 5GW data center project in North America.
DIGITIMES Insight: AI data demand surges as power and cooling become new bottlenecks — DigiTimes, 2026-10-04
Increasing AI data center demand is creating significant logistical and infrastructure bottlenecks specifically regarding power availability and cooling capacity.
Sponsored: With limited power comes great cooling responsibility — Data Center Dynamics, 2026-10-02
The story highlights the critical importance of cooling infrastructure and thermal management for high-density data centers powered by limited electricity.

Questions about CRAH / CRAC / fan walls / in-row units

What are CRAH / CRAC / fan walls / in-row units?: CRAH, CRAC, fan-wall, and in-row units circulate conditioned air across IT equipment in air-cooled halls, using either facility chilled water (CRAH) or an internal refrigerant circuit (CRAC).
Which companies make CRAH for AI data centers?: This catalog lists 16 companies on CRAH / CRAC / fan walls / in-row units, 12 of them with listed equity: Airedale, Daikin, Envicool, Johnson Controls, Kingspan, Mitsubishi Electric, Munters, Schneider Electric, Swegon, Systemair, and 6 more.
How does AI change demand for CRAH / CRAC / fan walls / in-row units?: Liquid cooling absorbs most of the chip heat load in AI racks, so CRAH and fan-wall demand per rack falls even as total site CRAH capacity keeps growing to serve the residual air-cooled load and act as backup.
How reliable are these CRAH / CRAC / fan walls / in-row units supplier placements?: The 16 placements on this part break down as 4 disclosed, 12 inferred. "disclosed" means the company or a filing says so; "reported" comes from trade press or a reference-design list; "inferred" is a taxonomy lead with no citation yet.

Sources: placements without a source URL come from the taxonomy seed and are tagged accordingly. How this data is built.· Markdown · JSON