APC by Schneider Electric ACPL75159 Uniflair Return Supply Plenum Chamber

Overview

The APC by Schneider Electric ACPL75159 is a Uniflair series return supply plenum chamber designed to direct and contain airflow in precision-cooled data center and computer room environments. At Frame Size 5 — spanning 67.7 inches wide and 34.1 inches deep — this is a large-format plenum built for wide-aisle or modular cooling configurations where unmanaged airflow recirculation would undermine cooling efficiency. If your precision cooling units are losing capacity to hot-air bypass or return mixing, a properly sized plenum like the ACPL75159 is the mechanical fix before any software or capacity adjustment makes sense.

Manufactured by Schneider Electric SA under the Uniflair brand, this unit ships factory-new and is sourced direct from the manufacturer or US-authorized distribution — no grey-market units, no parallel imports.

Key Features

• Frame Size 5 Coverage (67.7" × 34.1"): At nearly 5.6 feet wide and just under 3 feet deep, this plenum addresses large precision cooling footprints where undersized containment hardware leaves bypass gaps. Matching the plenum width to your CRAC or CRAH unit's return opening is critical — Size 5 targets the upper range of Uniflair unit configurations.
• 305mm (12") Stackable Profile: The 12-inch height with stackable design means you can add plenum height incrementally without replacing the base unit. In ceiling-constrained equipment rooms, stacking lets you fine-tune plenum volume rather than committing to a taller fixed assembly upfront.
• Return Supply Airflow Path: This chamber manages the return supply airflow loop — capturing warm return air and directing it back to the cooling unit's intake without mixing with cold supply air. Proper return separation is the most direct way to prevent COP degradation in a precision cooling system.
• White Finish: The white color is functional in data center environments: it improves visibility for maintenance personnel working in confined above-ceiling or raised-floor plenum spaces, and it's consistent with standard Uniflair aesthetic integration in computer room installations.
• 59.52 lb Assembled Weight: At just under 60 pounds, this is a two-person lift for safe installation. Factor this into your ceiling or raised-floor structural load calculation — particularly in stacked configurations where multiple chambers compound the point load.
• Fastener-Included Packaging: The box ships with four fasteners specific to this plenum assembly, so you're not sourcing hardware separately on install day. Confirm fastener compatibility with adjacent Uniflair components before the installation crew arrives.

Integration & Compatibility

The ACPL75159 is a Uniflair-ecosystem component. It is engineered to integrate with Schneider Electric's Uniflair precision cooling units at Frame Size 5, and the stackable interface is designed to mate with other Uniflair plenum segments. If you are configuring a data center infrastructure that uses multiple Uniflair cooling units or a modular row-based cooling architecture, verify that adjoining plenum components share the same frame size designation — mismatched frame sizes are the most common field error in plenum assembly projects.

For sites running APC power distribution and Uniflair cooling as a combined Schneider Electric ecosystem, this plenum integrates cleanly into the EcoStruxure-managed physical layer without third-party adaptation hardware. Consult Schneider Electric's Uniflair configuration guides to confirm plenum-to-unit pairing before ordering, particularly if the cooling unit was sourced separately or is a different revision than the plenum.

What's in the Box

• 1× ACPL75159 Plenum Chamber
• 4× Fasteners

Frequently Asked Questions

Q: What frame size does the ACPL75159 correspond to, and how do I confirm compatibility with my Uniflair cooling unit?

A: The ACPL75159 is a Frame Size 5 plenum chamber. To confirm compatibility, match the frame size designation of your Uniflair precision cooling unit to Size 5. Mismatched frame sizes will result in gaps or misalignment at the plenum-to-unit interface. Consult the Uniflair configuration documentation for your specific cooling unit model.

Q: Can the ACPL75159 be stacked to increase plenum height?

A: Yes. The ACPL75159 is designed as a stackable unit, standing 12 inches (305mm) tall. Multiple chambers can be stacked to increase total plenum height in installations where ceiling clearance permits incremental height adjustment.

Q: What are the physical dimensions and weight of the ACPL75159?

A: The ACPL75159 measures 67.7 inches wide, 34.1 inches deep, and 12 inches tall. It weighs approximately 59.52 pounds. Plan for a two-person lift and verify ceiling or floor structural capacity before installation, especially in stacked configurations.

Q: What is included in the box with the ACPL75159?

A: The package includes one ACPL75159 Plenum Chamber and four fasteners. No additional mounting hardware is specified in the package contents.

Q: Is the ACPL75159 compatible with non-Uniflair cooling equipment?

A: The ACPL75159 is engineered for the Uniflair product ecosystem. Compatibility with non-Uniflair or third-party precision cooling equipment is not documented in the available evidence. Use with non-Uniflair units would require field verification of physical interface dimensions before procurement.