Dry free-cooling mode
Request heat-exchange capacity and fan/input rating at the selected outdoor and hall conditions.
EQUIPMENT / EQUIPMENT FAMILY
Envicool XFlex IEC modules · Climate modes and water scope
Read the 100–400 kW system envelope alongside the three real operating modes and request climate-specific selected performance.
From Shenzhen Envicool Technology Co., Ltd.
Individual product research · HVACDeck Editorial · Sources checked 2026-10-11
Select indirect evaporative cooling for the actual climate and hall
XFlex is Envicool's modular indirect evaporative cooling offer for data centres. The official description identifies three modes: dry heat-exchange free cooling, wet evaporative free cooling and evaporative cooling combined with mechanical cooling. It describes basic modules assembled into a 100–400 kW cooling system and adaptation to hot- or cold-aisle containment. The original supplier rendering shows a modular enclosed assembly; no model-by-model capacity/ambient table was reviewed.
The architectural distinction is the indirect heat-exchange route and mode-dependent heat rejection. The supplier describes a polymer heat-exchange core and separation of cooling equipment from the air-conditioning side. Its more-than-60% saving and reduced site-construction claims remain supplier comparisons, not inspected project outcomes. Selection should establish capacity in each required climate/operating mode, water and mechanical-backup scope and actual installed air separation rather than assuming that an indirect system guarantees identical performance everywhere.
Published parameters and their scope
This is an equipment family; its range does not identify one orderable configuration.
- Family designation
- XFlex indirect evaporative module family
Swipe the table, or focus it and use arrow keys, to read the conditions and sources.
| Parameter | Published value | Conditions and evidence |
|---|---|---|
| Three described modes | Dry free cooling; wet evaporative free cooling; combined mechanical cooling | Official operating architecture, not issued mode-switch thresholds. Source |
| Published system envelope | 100–400 kW through basic modules | No selected-model air/weather conditions or individual-module capacity table. Source |
| Air-side arrangement | Hot- or cold-aisle containment adaptable; cooling-side separation described | Issued air-path/pressure/leakage documents still required. Source |
| Heat-exchange core | Polymer core described by supplier | Patent, material/corrosion and water-quality claims not independently tested. Source |
| Comparison figures | >60% saving and 70% reduction in site construction | Supplier figures; baseline, climate and scope not inspected. Source |
| Project gaps | Selected modes/capacity, water, backup, air losses and controls | No guaranteed year-round free cooling or project PUE. Source |
Selection and application review
Select capacity in the required operating modes
Provide hall load, air conditions and the site's design weather conditions, not just annual average temperature. Request XFlex capacity and complete input for the dry, wet and combined modes applicable to the ordered modules. The 100–400 kW envelope does not establish a capacity at every ambient or identify the contribution of one unspecified module.
Obtain mode-switch thresholds and performance at the conditions where mechanical support is needed. Free cooling means the described free-cooling modes; it is not a promise of zero fan/pump energy. Confirm how unavailable modules affect required duty and redundancy.
Define the indirect air and containment boundaries
The official page describes an indirect heat-exchange core and compatibility with different containment layouts. Obtain actual primary/secondary air-path and pressure drawings, leakage limits and the selected fan/coil arrangement. Confirm the installed route for the data-hall air independently of outdoor/process air.
Do not infer that the word indirect makes filtration, contamination management or humidity performance irrelevant. Specify required delivered air conditions and any project acceptance limits. The supplier's polymer-core and corrosion-language claims need selected material and test documentation where they affect the order.
Close evaporative water and mechanical-backup scope
Ask for the selected water-quality, flow, treatment, replenishment/drain and maintenance requirements in the wet mode. The source's low-water-quality-requirement phrase does not establish compatibility with every site water supply. Request permissible conditions and actual water consumption for the selected operating point.
Identify included refrigeration/backup equipment, refrigerant, pumps and controls for the combined mode. Obtain cold-weather and idle/maintenance arrangements from issued instructions. No zero-freezing or universal corrosion-life guarantee is inferred from the marketing description.
Review prefabrication against the installation contract
The page describes factory-prefabricated basic modules and reduced construction. Ask which equipment is delivered assembled, which site connections/tests remain and who owns commissioning responsibility. A factory-tested module does not by itself verify the installed containment, water connections and supervisory control.
Obtain dimensions, weights, access and service requirements plus the selected equipment/control schedule. Agree failure-state operation and maintenance isolation. The 70% construction reduction lacks an inspected comparison scope and is not converted into a guaranteed project schedule.
Measure energy and delivered duty separately
For an energy assessment, define the weather/load profile, comparison system and included fans, pumps, water and mechanical-cooling loads. The website's saving/PUE references are supplier material without an inspected independent test. Use a selected annual calculation and identify its assumptions before procurement.
Acceptance should record thermal duty, air conditions, complete input and the agreed mode transitions at defined climate/water points. Current price, lead time and independent annual saving remain unknown.
Wet free-cooling mode
Include water conditions/consumption, air-side duty and the selected controls.
Combined mechanical mode
Identify backup/refrigeration scope and performance at the required limiting weather point.
Sources and review scope
Compiled by HVACDeck Editorial. Source review identifies what the publication states; it is not an independent performance test or certification.
- Official XFlex modular evaporative coolingChecked 2026-10-11 · Full operating-mode and feature text plus original modular product rendering inspected; 100–400 kW envelope and comparison boundaries retained.
Editorial method and corrections · Report a detail with this page URL
Turn the evidence into an enquiry
Send the manufacturer your required duty, installation conditions and the unresolved items identified in this brief.
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