Coolant Distribution Unit LL-35
A 4U, 35kW liquid-to-liquid CDU with redundant pumps and integrated PLC monitoring.
The LL-35 is a rack-mounted heat-exchange unit for ultra-high-density cold-plate liquid-cooled servers. Its rated cooling capacity is 35kW. Clamp connections simplify installation, while redundant pumps support reliability, replacement and maintenance. The unit exchanges heat between the outdoor-side cooling-water circuit and the secondary coolant circuit and manages and distributes cooling capacity.
Key features
Intelligent flow control
Redundant pump motors use variable-speed control to adjust system flow in response to server load.
System monitoring
PLC control integrates monitoring of temperature, flow, pressure, leakage and liquid level.
Intelligent alarms
A three-level alarm mechanism helps operations staff locate system abnormalities quickly.
Specifications
| Parameter | Value |
|---|---|
| Height | 4U |
| Dimensions | 171.5 × 445 × 898mm (H × W × D) |
| Rated cooling capacity | 35kW |
| Flow | Primary side: ≥3 m³/h; Secondary side: 3 m³/h |
| Maximum rated output differential pressure | Secondary side: ≥14.06/1.0 bar |
| Rated inlet coolant temperature | Primary side: 35°C; Secondary side: 50°C |
| Rated outlet coolant temperature | Primary side: 45°C; Secondary side: 40°C |
| Pump drive configuration | Dual-pump variable-frequency control |
| Maximum power consumption | 300W |
| Power specification | AC220V 50Hz ±10% |
| External connections | φ50.5 clamp connections |
| Power connector | C14 |
| Communication interfaces | 2 × RS485 |
| Communication protocols | Modbus RTU & Modbus TCP/IP |
| Refill connection | HND06 male quick-connect |
| Noise level | 72dB(A) |
The secondary-side differential-pressure notation is reproduced as published. No primary-side differential-pressure value is specified.
Applications
- Liquid-cooled data centres
Contact our team for LL-35 availability and project requirements.
Request product information