EcoCore FCD CDU

EcoCore FCD CDU

Facility Cooling Distribution Unit

EcoCore FCD is Nautilus’s facility-scale Cooling Distribution Unit, engineered to meet the thermal and flow demands of today’s most advanced AI and HPC workloads. With support for both parallel pump and leak-prevention configurations, the FCD adapts to your infrastructure, not the other way around.

Benefits

Up to 4MW Heat Rejection

Handles high-density AI and HPC workloads with ease.

Built for the Latest GPUs

Parallel pump configuration delivers the high-pressure, high-flow performance required by today's leading AI chipsets.

Two Configurations, One Platform

Choose parallel pump mode for maximum flow and thermal capacity, or vacuum-based LPS mode for leak-critical environments.

Water Source Agnostic

Compatible with virtually any facility water source: treated water, high TDS sources, and seawater. Supports a wide operating temperature range & warm water ready.

Flexible Facility Integration

Accommodates any facility design and multiple cooling configurations for full customization.

Simplified Installation

Fully prefabricated, skidded solutions for quick repurposing of space, reducing on-site deployment and commissioning complexity.

Download the Full Product Data Sheet

Features

  • Dual Configuration: Factory-configurable for parallel pump (Active-Active) operation for maximum GPU workload support, or LPS mode with integrated degassing and leak mitigation.
  • Dual-Loop Configuration: EcoCore FCD utilizes a dual-loop system, with a closed loop for IT equipment cooling and an open loop for external water sources.
  • Flexible Compatibility (Water Sources): EcoCore FCD supports freshwater, saltwater, graywater, and industrial water systems.
  • Compact Footprint: Designed to fit seamlessly into existing data halls, maximizing space utilization without compromising cooling performance.
  • Top or Bottom Water Connections: Installation flexibility with top or bottom feed options, accommodating diverse facility layouts.
  • Precise Temperature Control: Delivers consistent and precise cooling to ensure optimal thermal conditions, preventing thermal shocks.
  • Scalable Design: Supports parallel operation via a common hot water header and supervisory controls.
  • Modular Filtration: Optional side stream and primary filters.
  • Leak Prevention System (LPS): Proprietary vacuum-based configuration option provides closed-loop leak prevention for risk-sensitive environments
  • Dual Power Feed: Equipped with dual power feeds for redundancy, ensuring continuous operation.
  • Up to N+2 Redundancy: Ensures continued operation even in the event of multiple failures.
  • Comprehensive Sensor Array: Flow, temperature, and pressure sensors across primary and secondary circuits.
  • Portable Touchscreen Display: Provides real-time monitoring and control with a user-friendly interface.
  • Communication Options: Supports Modbus RT, Modbus TCP, OPC UA protocols for remote control and monitoring.
  • Energy Efficient: Rated at 60 kW, with a typical draw of 18 kW, reducing operational costs.
  • Wide Application Range: Suitable for perimeter and full facility cooling.

EcoCore FCD Technical Specifications

Category FCD Specifications
Cooling Capacity per Module 2MW to 4MW
Approach [ATD] 2ยฐC [3.6ยฐF]
Maximum TCS Flow 80 L/S (1268 GPM)
TCS Pressure Head at Maximum Flow 2.7 Bar [39 PSI] ( 6 bar [87 psi ] total available head)
Dimensions 2.7 m ร— 1.7 m ร— 2.1 m
(8.9 ft ร— 5.6 ft ร— 6.9 ft)
Power 400V - 480V 50-60Hz
3-phase dual feeds
Maximum Power Consumption 60 kW
Primary Coolant Type (FWS) Process Water
Natural Source Water
Water-Glycol Mix [1-25%]
Secondary Coolant Type (TCS) Process Water
Water-Glycol Mix [1-25%]
Primary Connection 150mm [6 in.]
Sanitary, SS316
Secondary Connection 150mm [6 in.]
Sanitary, SS316
TCS Filtration 25-50ฮผm Full-Stream
1-25ฮผm Side-Stream
FWS Filtration (Optional) 500ยตm Full-Stream
Redundancy N+1 Standby or
Active-Active Dual Pump
Integrated Degasser Available
Linked System Operation 2 to 6 CDU Modules
Communication Modbus, OPC UA,
SNMP, Redfish

FAQs

The EcoCore FCD (Facility Cooling Distribution Unit) is a leak-proof, scalable cooling solution for high-density AI, HPC, and industrial data centers. It handles heat rejection while integrating with existing liquid cooling systems throughout a data hall. 

Each FCD module supports between 2,000 kW and 4,000 kW of heat rejection, enabling it to support dense computing loads and facility-scale deployments.

The FCD offers two configurations for different facility requirements. The parallel pump (Active-Active) configuration delivers high-pressure, high-flow operation for maximum AI workload performance, with integrated filtration for loop integrity. The LPS (Leak Prevention System) configuration uses Nautilus’s patented vacuum-sealed, closed-loop design for environments where leak risk is a primary concern. Both include N+1 redundancy and comprehensive monitoring.

Yes. The FCD is water-source agnostic, designed to support freshwater, saltwater, graywater, or industrial water sources. It works alongside direct-to-chip, immersion, rear-door, hot-aisle, or other cooling architectures.

The FCD supports a maximum TCS flow of 80 L/s (1,268 GPM) in dual pump mode, or 60 L/s (951 GPM) in single pump mode, with a TCS external pressure head of 2.7 bar [39 PSI] and total available head up to 6 bar [87 PSI]. It uses 150 mm (6 inch) SS316 sanitary connections for both primary and secondary circuits. Approach temperature difference (ATD) is 2ยฐC (3.6ยฐF). For controls, it supports Modbus, OPC UA, SNMP, and Redfish protocols, and comes with built-in sensors, a local and remote HMI, and modular filtration options.

Join the
Liquid-Cooling Revolution

EcoCore CDUs not only simplify selecting your data center cooling methods, but provide better compatibility, scalable efficiency, and flexibility to exceed sustainability goals now and later. Ready to step into the future?

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