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Liquid-cooling retrofit in an operating data center

Real application / RETROFIT / LIVE DATA CENTER

Existing data-center liquid-cooling retrofit

Introduce liquid-cooled racks in phases while existing services remain live, coordinating space, work windows and the current cooling system.

Engineering focus

Liquid-cooling design priorities for this application

Step 01

Solution inputs

Air-cooled and liquid-cooled racks operating together
Coordinate space, work windows and phased cutover
Secondary loop, CDU placement and existing-water connection

Step 02

System path

1. Survey the live environment

Map existing air-cooling zones, available floor space, pipe routing, and construction access.

2. Define the cutover path

Identify which racks convert first, where temporary hoses run, and how air- and liquid-cooled racks coexist.

3. Validate without disruption

Run parallel cooling, commission incrementally, and finalize as-built records and operator training.

Step 03

Before implementation

Coordinate space, work windows and phased cutover
Secondary loop, CDU placement and existing-water connection

Step 04 — Result

Operational outcomes

Clarifies the system boundary before equipment selection
Connects application requirements to a verifiable engineering path

Engineering details

Decision inputs and delivery evidence

Decision inputs

Air-cooled and liquid-cooled racks operating together

Validation and delivery evidence

Coexistence validation: air- and liquid-cooled racks under load
Flow, pressure, leak and cutover records