CDU Selection & Deployment Guide
Compare in-row, in-rack, sidecar, L2L vs L2A and 2-phase CDUs with verified vendor specs and manual links, the flow/ΔT sizing math, installation requirements, a documentation hub, and an FAQ.
Open the guide ✓ 02 · OperateInstall, Inspection & Maintenance Checklist
Operational parameter bands, water-quality acceptance criteria (ASHRAE W-classes, OCP limits), the numeric commissioning procedure, a symptom→cause→action table, PM cadences, and a printable service-record form.
Open the checklist 📡 03 · VisualiseCDU Mini-BMS
An interactive cockpit per CDU type: datahall installation layout, a full ISA P&ID schematic, and live simulated parameters with sparkline trends — inject a fault (leak, pump-fail, clog…) and watch the controls respond.
Open the cockpit ∑ 05 · CalculateSizing & Thermohydraulic Calculator
Size a CDU from first principles — secondary flow, pipe velocity, pressure drop (Darcy-Weisbach), heat-exchanger approach (ε-NTU), NPSH margin, dew-point reset and pump N+1 power — computed live by a validated engine with basis chips and band checks.
Open the calculator ⚖ 04 · CompareDeep Comparison — All Aspects
Source-tagged comparison across worldwide common field issues, control systems & BMS/DCIM integration, after-sales & warranty per vendor, and TCO & maintenance burden by type — plus a 10-vendor capability matrix.
Open the comparisonAI Engineering Maintenance & FMECA
The FMECA + Knowledge-Graph + ML-advisor concept for data-center asset failure analysis. The CDU liquid-cooling fault modes in this toolkit — F11.1 coolant-chemistry drift, F11.2 CDU-pump failure, F11.3 manifold/hose leak, F11.4 fluid degradation, F11.5 filter clogging — are the very faults the Mini-BMS injects and the checklist tracks, mapped to mechanisms, effects, corrective actions and RPN risk.
Open the knowledge base 📦 07 · StockCritical Spares Readiness
Quantify stocking levels, supplier risk and obsolescence exposure for CDU critical spares — FMECA criticality scoring, newsvendor optimal stock, multi-site hub positioning and last-time-buy economics. Pairs directly with the checklist's §07 spare-parts & consumables register.
Open the spares engine