Trane and LiquidStack open pre-orders for 2.5MW coolant distribution unit

Trane Technologies and LiquidStack this week opened pre-orders for a 2.5MW coolant distribution unit, the CDU 2.X, with shipments beginning in the second quarter of 2027. The platform is what the companies call architecture-agnostic: an operator configures the cooling around its facility and deployment schedule rather than designing the facility around the unit. Scott Smith, general manager of LiquidStack at Trane Technologies, framed that as headroom for the generation after next—cooling that adapts as GPU platforms and rack densities evolve.

That headroom is specified at 2.5MW of cooling capacity at 4°C ATD, 3,750 litres per minute at 3.5 bar of available head pressure, and, per LiquidStack, approach temperatures and facility inlet temperatures up to 45°C. Configuration choices include control valve, power feed, and redundancy options such as dual-feed A/B and automatic transfer switch, but the detail that ties cooling to the power ledger is the tolerance for a 45°C facility inlet, since warmer water implies less mechanical refrigeration—a saving the launch materials do not quantify.

LiquidStack describes the drive as an ultra-low-harmonics VFD architecture that addresses harmonic distortion at the source, which it says reduces the need for additional power-quality components and simplifies the electrical design. Power-quality components are a line item somewhere in the electrical budget, so a cooling vendor offering to remove them is bidding for more than the thermal envelope.

Trane bought LiquidStack earlier this year, acquiring a business founded in 2013 as Allied Control that sells single- and two-phase liquid cooling and prefabricated modular cooling for edge sites; in August, Trane and Eaton published a reference design for AI data centers that the companies said cut energy use 15 percent and copper 80 percent. The thermal half of that pairing now has a 2.5MW product behind it.

Pre-orders are open now against first deliveries in the second quarter of 2027. The gap suggests Trane expects cooling slots to be booked well before the rest of a hall's equipment is ordered, a sales posture that treats factory capacity as the scarce item in the category.

Grid access and queue position are the deal currency in the AI build-out, and a queue position is worth only what the plant behind it can convert into compute. Heat rejection and power quality are two gates on that conversion, and this launch sells both in one box. No operator has been named as a pre-order customer, and the second quarter of 2027 is the date that will show whether the 2.5MW rating arrives in named halls or stays a specification.