Appendix · Reference Design
Prefabricated hybrid modular solution.
Four standardized rack-power tiers, from 50 kW to 250 kW/rack. On-site assembly of prefabricated modules — like Lego blocks — shortens the construction cycle from 18 months to as little as 6.
Standard Tiers
Four tiers, one standardized framework.
Avala's standard reference design represents minimum specifications and may be increased depending on actual design and site conditions.
| Tier | Rack Power | Modules | IT Load Range | Design Grade | PUE |
|---|---|---|---|---|---|
| AD50 | 50 kW/rack | 2 – 6 | 1,600 – 4,800 kW | Tier III | 1.13 |
| AD70 | 70 kW/rack | 2 – 6 | 2,560 – 7,680 kW | Tier III | 1.13 |
| AD140 | 140 kW/rack | 3 – 6 | 6,960 – 13,920 kW | Tier III | 1.13 |
| AD250 · Vera Rubin | 250 kW/rack | 1 | up to 4.8 MW (4,360 kW incl. network/storage) | — | — |
Design Model
Hybrid modular design.
IT Device Module
IT rack, network/storage rack, storage rack, PDC (power distribution cabinet), power distribution ladder, cable tray, and integrated cabling.
Cooling Module
In-row cooler, cold aisle, CDU (cooling distribution unit) and liquid cooling, cooling manifold, cold plate, RDHx, and power distribution ladder.
Primary Loop (Facility Loop / FWS)
Liquid cooling primary pipes, fan wall chilled water pipes, valves & actuators and instrumentation, and water leakage detection system.
Secondary Loop (Technology Loop / TCS)
Cooling distribution unit (CDU), rack manifolds & quick disconnects (QDCs), direct-to-chip cold plates / RDHx, and sensors & internal leak detection.
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Prefabricated and steel-structure data center reference designs — 61 pages in full. RD01–21 · 1.74 MW to 7.15 MW+ · Tier III class · PIP ≤ 9 months.
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