GoCool-1500 | Liquid-to-Liquid Cooling

GoCool-1500: Liquid-to-Liquid CDU

1500kW Precision Cooling for Direct-to-Chip and Rear Door Heat Exchanger Applications 

As demand for high-performance computing and advanced GPUs continues to grow, traditional air cooling is reaching its limits. Delta’s GoCool-1500 offers a powerful liquid-to-liquid cooling solution designed to meet these challenges head-on. By efficiently separating the facility water loop from the IT equipment’s cooling circuits, it provides precise control over flow, pressure, temperature, and coolant quality—ensuring optimal thermal management for even the densest computing environments. 

Built to support cutting-edge applications like direct-to-chip cooling and rear door heat exchangers, the GoCool-1500 excels at handling high-density heat loads while maximizing computing power and reducing overall energy consumption in data centers. With durable stainless steel plumbing and advanced coolant filtration, it safeguards reliability and prevents condensation, making it a trusted choice for modern, energy-efficient data centers embracing the future of liquid cooling technology. 


 

Delivering Efficiency, Reliability, and Ease of Management

Efficient Cooling, Lower Costs

  • Maximize Energy Efficiency: Cuts power consumption with precision liquid-to-liquid cooling, outperforming traditional air cooling.
  • Optimize Space Utilization: Compact footprint enables denser server placement, reducing CapEx.
  • Seamless Integration: Instant alerts and configurable responses maintain system safety.
  • Durable Construction:Stainless steel plumbing with 50-micron filtration preserves coolant quality.

Reliable Performance Without Interruption

  • Uninterrupted Operation: Dual power feeds with ATS ensure continuous CDU performance.
  • No Single Point of Failure: Redundancy design maximizes uptime for mission-critical workloads.
  • Advanced Leak Detection:Self-diagnosis and component analysis extend UPS lifespan and maintain performance

Simple, Intelligent Control

  • User-Friendly Interface:10-inch color touchscreen with real-time flow, pressure, and temperature monitoring.
  • Flexible Control Modes: Group and manual operation enhance thermal management and reliability.




 

Looking to Boost Cooling Performance and Reduce Costs? Talk to a Delta Data Center Cooling Expert  
 

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Frequently Asked Questions

What is a liquid-to-liquid coolant distribution unit (CDU) and how does it work?

A liquid-to-liquid CDU is a cooling system that transfers heat from IT equipment to the facility water loop through heat exchangers. It separates the two loops for safety, while maintaining precise control over flow rate, temperature, and coolant quality in a closed loop

When should a data center consider liquid cooling over air cooling?

Liquid cooling is ideal when cooling capacity needs exceed what air systems can deliver, especially in high-density racks, high performance computing (HPC) environments, or GPU-intensive workloads. It enables better thermal management, higher computing performance, and energy savings.

Can a CDU support both direct-to-chip and rear door heat exchanger cooling?

Yes. Many modern liquid cooling systems, including high-capacity CDUs, are designed to integrate with direct-to-chip cold plates and Rear Door Heat Exchanger (RDHx) units, giving data centers flexibility in cooling technology deployment.

How does a CDU help reduce energy consumption in a data center?

By using liquid as the heat transfer medium, a CDU increases cooling efficiency and reduces the power needed for thermal management. This helps lower overall PUE, freeing more energy for computing rather than facility cooling.

What should I look for when choosing a coolant distribution unit?

Key factors include cooling performance, compatibility with your facility water system, redundancy features, ease of integration with liquid cooling systems, and durability of components such as stainless steel plumbing and heat exchangers.



 

Need Guidance on Choosing the Right Cooling System? Talk to a Delta Solution Expert  
 

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Specifications
  1. Model
    GoCool-1500
  2. Nominal Cooling Capacity: 
    1500 kW @6°C approach, 1500 LPM secondary flow rate, 1300 LPM primary flow rate, 1.0 LPM/kW
    1375 kW @6°C approach, 1650 LPM secondary flow rate, 1300 LPM primary flow rate, 1.2 LPM/kW
    1250 kW @5°C approach, 1500 LPM secondary flow rate, 1300 LPM primary flow rate, 1.2 LPM/kW
    1016 kW @4°C approach, 1524 LPM secondary flow rate, 1300 LPM primary flow rate, 1.5 LPM/kW
  4. Primary Side
  5. Coolant Type: Water
  6. Nominal Coolant Flow Rate: 1300 LPM, 17°C primary inlet temperature
  7. Operation Pressure Drop: 114 kPa
  8. Coolant Filter: 500 μm with bypass loop to enable hot-swappable
  10. Secondary Side
  11. Coolant Type: 25%PG
  12. Nominal Coolant Flow Rate: 1524 LPM
  13. Approach Temperature: 4°C 
  14. Coolant Filter: 50 μm with isolation valves to enable hot-swappable (upgradeable to 25 μm)
  15. External Pressure Drop: 331 kPa
  17. Power Supply
  18. Nominal Power Supply Voltage: 380/400/415/480 Vac, 3P3W+PE
  19. Operating Voltage Range: 342-528 Vac
  20. Frequency: 50/60 Hz
  21. Dual Power Feed: Standard
  22. Automatic Transfer Switch: Standard
  23. MCU Controls: Standard
  24. Power Feed Location: Top
  26. Deployment
  27. Primary Connection: 4'' sanitary ferrule
  28. Secondary Connection: 4'' sanitary ferrule
  29. Piping Connection Location: Top
  31. Physical
  32. Dimensions (W x D x H): 1200 x 1200 x 2300 mm (47.2'' x 47.2'' x 90.6'')
  33. Clearance
    Front: 1200 mm (47.2''); Rear: 800 mm (31.5'')
  34. Net Weight
    With coolant: 1900 kg (4188.8 lb); Without coolant: 1600 kg (3527.4 lb)
  35. Noise Level: < 76 dBA (at 1 m)
  37. Communication Interface
  38. Display: 10'' color touchscreen 
  39. Protocols: SNMP, Modbus RTU, Modbus TCP/IP, BACnet
  40. Monitoring
    Primary Side: Temp. (Inlet/Outlet), Flow rate, Pressure (Inlet/Outlet, Filter ΔP)
    Secondary Side: Temp. (Supply/Return), Flow rate, Pressure (Supply/Return, Filter ΔP)
    Dew-point Temp.
  42. Conformance
  43. Safety: CE, UL/CSA 60335
  45. Features
  46. ▪️Leak Detection: Standard
  47. ▪️Dew Point Monitor: Standard
  48. ▪️Control Sensor Redundancy: Standard
  49. ▪️Variable Frequency Drivers (VFD): Standard
  50. ▪️Expansion Vessel: Standard
  51. ▪️Filling Tank: Upgradeable to have
  52. ▪️Auto-restart Function: Standard
  53. ▪️Coolant Healthy Measurement: pH sensor
  54. ▪️Pump Redundancy: 3+1(N+1) or 4 (N mode)
  55. ▪️Grouping Control: Standard
  57. All specifications are subject to change without prior notice.

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