Facility Tier — Vertiv™ CoolPhase™ Flex
CoolPhase™ Flex
A hybrid outdoor packaged system pairing air and liquid cooling for a full facility — the industry’s first packaged system to offer both.
Hybrid air/liquid cooling
Field-convertible
18-month warranty
or call (800) 222-1440
What’s Built In
Air today, liquid tomorrow — without swapping the unit.
- Industry’s first packaged system offering both liquid and air cooling for high-density and AI workloads
- Field-convertible between air and liquid cooling with minimal operational disruption
- Matches current Liebert® DSE (DP400) capacities with only 5 ft of additional footprint
- Deploys initially as air cooling (matching the legacy Vertiv™ Liebert® DSE packaged unit) or as liquid cooling
- Redundant fans and DX circuits mitigate risk and ensure operational continuity
Supports mixed workloads where liquid-cooled and air-cooled servers are deployed in the same environment, optimizing for varying heat loads across the whitespace — developed in collaboration with Compass Datacenters.
Full Specifications
Every number, for the people who ask for them.
| Capacity class | DH400 — matches Vertiv™ Liebert® DSE (DP400) |
| Cooling mode | Hybrid — air, liquid, or both; field-convertible |
| Refrigerant | R410A |
| Footprint | +5 ft beyond the standard DP400 model |
| Height / Width / Depth / Weight | Not published — confirmed at quote against your site plan |
| Warranty | 18 months from product shipment date |
| Best fit | AI and high-density workloads, mixed air/liquid-cooled racks |
As a hybrid, field-convertible system, exact dimensions and weight depend on the air/liquid configuration specified at quote.
Ready to spec CoolPhase Flex?
Tell us your workload mix — air, liquid, or both — and we’ll configure the unit.