The GigaModular CDU (Coolant Distribution Unit) platform addresses the rising heat densities in modern data centers, where AI processors and GPU clusters can generate upwards of 100 kW per rack. Traditional CRAC and chilled water systems struggle at these loads. LiquidStack's platform uses direct-to-chip liquid cooling with centralized distribution, routing coolant to server racks through manifolds rather than relying on air handlers that can't keep pace with the thermal output.

The modular architecture scales from 2 MW to 14 MW in increments, allowing facility managers to phase in capacity as compute loads grow. Each CDU module connects to existing facility water loops — typically entering at 65-75°F — and supports both single-phase and two-phase immersion cooling topologies. The centralized control system monitors coolant flow, delta-T across heat exchangers, and pump performance in real time, sending alerts when parameters drift outside spec.

For contractors, this signals a shift in mechanical infrastructure planning. Data center projects that previously budgeted for 8-12 kW per rack are now seeing design specs at 40-80 kW per rack. That changes everything: piping sizes, pump head calculations, glycol concentrations for winter operation, and redundancy schemes. If you're bidding on colocation expansions or enterprise server rooms, expect RFPs to include liquid cooling tie-ins as standard scope, not alternates.

Stock larger flanged ball valves, stainless braided hoses rated for 150 psi, and plate-and-frame heat exchangers in the 500-1,200 kW range. Familiarize yourself with dielectric fluids if the design calls for immersion — these aren't glycol loops. Review pump curves for low-flow, high-head scenarios; many older chilled water pumps won't hit the pressure differentials these systems require. Keep an eye on filtration: particulate buildup in narrow heat exchanger channels kills efficiency faster than in air coils.

The GigaModular platform also integrates with building management systems via BACnet and Modbus, which means commissioning involves more than just startup sheets and flow balancing. You'll need controls techs comfortable with IP addressing, VLAN segmentation, and cloud dashboards. This isn't 1990s DDC — it's IT/OT convergence, and it's the new normal for mission-critical cooling.

Will your next hyperscale project demand liquid cooling redundancy at the rack level? Probably. Start training your service team now, because warranty calls on a 10 MW CDU farm won't look like a typical chiller plant repair.