TC-CDU-L1600C In-Row Liquid-to-Liquid CDU (1600 kW)
Liquid-to-Liquid Coolant Distribution Unit · 1600 kW · In-row · for rows and halls around 1600 kW
English PDF · Free download · No form required
Multi-rack AI halls & modular PODs
How it is used
Use an in-row CDU to distribute cooling to several racks. Size the loop against the actual IT load and redundancy requirement.
Selection checkpoint
Validate the manifold layout, pump curve and operating load for each project.
Illustrative architecture, not a customer installation or an installation drawing.
Overview
- In-row L2L CDU: facility water or dry-cooler loop on the primary side, PG25 to the rack manifold and cold plates on the secondary side
- 1600 kW rated, 5 °C approach, 2500 LPM secondary flow, variable 40–100%
- 1+1 redundant pumps with auto switchover, dual-feed ATS, leak detection, coolant quality monitoring, 50 µm filter, bypass online-replaceable filter and auto refill
- PID control; Modbus RTU / TCP for BMS / DCIM
- In-row floor-standing, 1200 × 1500 × 2000 mm, approx. 1800 kg, IP55
- For rows and halls around 1600 kW of direct-to-chip load (AI clusters, colocation retrofits)
Engineering fit
For rows and halls around 1600 kW of direct-to-chip load (AI clusters, colocation retrofits). Delivers 40 °C secondary supply from 35 °C facility water; every 1 °C of warmer facility water cuts chiller energy by roughly 2–3 %. Pairs with ToneCooling cold plates, manifolds and hose assemblies from the same factory, validated end-to-end on one CFD model and one test bench.
- Rows and halls around 1600 kW of direct-to-chip load (AI clusters, colocation retrofits)
- New liquid-cooled rows: one CDU per row in N+1 configuration
- Colocation and AI-cluster direct-to-chip retrofits and expansions
- Turnkey primary side together with integrated dry coolers and pump skids
Key specifications
| Parameter | Specification |
|---|---|
| Rated cooling capacity | 1600 kW |
| Installation | In-row, floor-standing |
| Dimensions (W × D × H) | 1200 × 1500 × 2000 mm |
| Weight | approx. 1800 kg |
| Coolant | PG25 (25 % propylene glycol / water) |
| Power supply | 3-ph AC 380 V 50/60 Hz or 480 V 60 Hz |
| Dual-feed ATS | Yes |
| Power consumption | < 25 kW |
| Ingress protection | IP55 |
| Display | 10.1″ touch HMI |
Performance & control
| Parameter | Specification |
|---|---|
| Approach temperature | 5 °C |
| Primary liquid in / out | 35 °C / 45 °C |
| Secondary liquid out / in | 40 °C / 50 °C |
| Secondary rated flow | 2500 LPM |
| Flow range | 40–100% |
| Pump head | 35 m |
| Redundant pumps, auto switchover | 1+1 |
| Control | PID, flow vs. temperature |
| Flow check | 60,000 × 1600 ÷ (1030 × 3.9 × 10 K) ≈ 2390 LPM; 2500 LPM rated incl. margin (ρ in kg/m³, cp in kJ/kg·K; ΔT in K) |
Monitoring · interfaces · environment
| Parameter | Specification |
|---|---|
| Leak detection | Yes |
| Coolant quality monitoring | Yes |
| Secondary filter | 50 µm |
| Bypass online-replaceable filter | Yes |
| Automatic refill | Yes |
| Communication | Modbus RTU & TCP/IP (RS-485 / RJ45) |
| Operating environment | −10 to 55 °C, 5–90 % RH |
| Storage environment | −45 to 70 °C, 5–93 % RH |
| Connections | Primary in/out, secondary supply/return, power and comms bottom / top (confirm on site) |
Note: rated at 35 °C primary inlet, 40 °C secondary supply, PG25; other conditions per selection table. Platform names indicate compatibility only and imply no endorsement or partnership. Specifications subject to change.
Documents and factory tests
Supplied: dimensional / connection drawing, P&ID, Modbus register map, flow–pressure-drop curve, selection table, user manual. Factory tests: pressure hold, leak test, flow resistance at rated flow, pump / ATS switchover, leak-sensor / coolant-quality / comms check; records ship with every unit. Combined cold plate + manifold + CDU report for full-rack projects.
Compare models in this series
| Model | Capacity | Rated flow | Size / height | English datasheet |
|---|---|---|---|---|
| TC-CDU-L300C | 300 kW | 500 L/min | 600 × 1200 × 2000 mm | ↓ Download PDF |
| TC-CDU-L600C | 600 kW | 1000 L/min | 600 × 1200 × 2200 mm | ↓ Download PDF |
| TC-CDU-L1000C | 1000 kW | 1800 L/min | 1200 × 1500 × 2000 mm | ↓ Download PDF |
| TC-CDU-L1600C | 1600 kW | 2500 L/min | 1200 × 1500 × 2000 mm | ↓ Download PDF |
| TC-CDU-L2000C | 2000 kW | 3200 L/min | 1200 × 1500 × 2200 mm | ↓ Download PDF |
Frequently asked questions
What CDU capacity does a 1600 kW row need?
Size the CDU at 1.1–1.2× the cold-plate heat load. TC-CDU-L1600C suits rows with roughly 1333–1454 kW on liquid; choose the next model up for higher loads.
What does a 5 °C approach temperature mean?
Approach temperature is the difference between secondary supply and primary inlet. With 35 °C facility water in, TC-CDU-L1600C delivers 40 °C coolant. A smaller approach allows warmer facility water and more free cooling.
In-rack or in-row CDU?
An in-rack CDU serves one rack, suits phased builds and retrofits, and isolates faults per rack. An in-row CDU serves a row at a lower cost per kW and suits new liquid-cooled halls. ToneCooling offers both.
What water does it connect to?
Primary side: facility chilled water or a dry-cooler loop. Secondary side: closed PG25 loop with 50 µm filtration, cleaned at the factory and pre-filled on request.
Which protocols are supported?
Modbus RTU and Modbus TCP/IP are standard; the register map ships with the unit. Ask about other protocols when requesting a quote.
Lead time and test reports?
Standard units ship in 6–8 weeks. Every unit ships with pressure, leak and flow-resistance test records; rack-level packages include a combined cold plate + manifold + CDU report.
Get a CDU selection review
Send your rack or loop heat load, inlet temperature, coolant, required flow, pressure drop, power supply and available space. We will confirm the model and operating conditions.
Sample lead time: 6–8 weeks. Large primary-side production units: 8–10 weeks, subject to project confirmation.
