APC by Schneider Electric ACRD600P InRow RD 600mm Air-Cooled Precision Cooling Unit

Overview

The APC by Schneider Electric ACRD600P is a 600mm-wide InRow RD (Row-based, Direct expansion) precision air-cooling unit designed to sit directly between server racks in a hot-aisle/cold-aisle data center row. Rather than relying on perimeter cooling to push conditioned air across a raised floor, the ACRD600P captures heat at its source — pulling hot exhaust directly from adjacent rack equipment and returning chilled air to the cold aisle. This row-based architecture dramatically reduces the mixing of hot and cold air streams, which is the primary efficiency killer in legacy perimeter-cooled rooms.

At a 600mm footprint, the ACRD600P occupies the same floor tile width as a standard 600mm rack cabinet, making it a natural fit for new builds and retrofits alike. The unit runs on 200–240V AC single-phase or three-phase power (confirm at order time for your voltage variant) and uses direct expansion (DX) refrigeration — meaning it contains its own sealed refrigerant circuit and does not require a chilled-water plant. That self-contained architecture simplifies installation in edge deployments, co-location suites, and enterprise data halls where a chilled-water loop isn't practical or cost-effective.

For integrators sizing a row-cooling deployment, the APC by Schneider Electric cooling line spans multiple capacities and widths — the ACRD600P sits in the mid-range of the InRow precision cooling family. Use EcoStruxure IT or Schneider Electric's Data Center Designer tool to model airflow and match unit count to rack density before committing to a layout.

Key Features

• Row-Based Cooling Architecture: The ACRD600P draws hot air directly from the hot aisle or rear of adjacent racks and discharges cold air to the cold aisle. Eliminating the long throw from perimeter units means less hot/cold air mixing — a direct improvement in cooling efficiency and a reduction in the risk of localized hot spots at high-density racks.
• 600mm Form Factor: Matching standard rack cabinet width means the unit fits seamlessly into an existing row without breaking the footprint pattern or requiring custom floor tile cuts. Retrofitting a row that already runs 600mm cabinets is straightforward.
• Direct Expansion (DX) Refrigeration: A self-contained refrigerant circuit means no chilled-water plant, no leak-prone piping runs to a central plant, and no chiller dependency. This is the right architecture for edge deployments, remote offices, and co-lo cages where chilled water simply isn't available. The trade-off: you need an external condenser or a connected condensing unit — confirm the matching condensing unit at the time of order.
• 200–240V AC Power Input: Operates on standard data center feed voltages found in North America and international facilities. Verify single-phase vs. three-phase input requirements against your PDU capacity before installation — the two variants draw significantly different branch circuit loads.
• Integrated Controls and Monitoring: The ACRD600P includes an onboard controller compatible with APC's InfraStruXure and EcoStruxure IT management ecosystems. Remote monitoring via SNMP or a network management card allows integration into existing data center infrastructure management (DCIM) platforms without an additional gateway.
• Hot-Aisle Containment Compatible: Designed to work with APC's hot-aisle containment systems. Pairing the ACRD600P with a contained hot aisle eliminates bypass airflow entirely — the efficiency gain over an open-aisle layout is substantial at densities above 5kW per rack.
• Scalable Deployment: Multiple ACRD600P units can be grouped in a row to serve higher-density deployments. N+1 or 2N redundancy configurations are supported by deploying additional units and configuring group control — if one unit faults, remaining units ramp up to maintain cooling. Size your group conservatively; field experience suggests targeting 70–80% utilization per unit under normal load to preserve headroom for this redundancy.
• Commercial-Grade Build Quality: APC InRow units are rated for continuous 24/7 operation in production data center environments. The ACRD600P is engineered to the same reliability standards as the broader InRow product family, with service access panels designed for maintenance without shutting down the adjacent rack row.

Integration and Compatibility

The ACRD600P integrates with APC's broader InfraStruXure ecosystem. Network management cards (sold separately) enable SNMP, Modbus, or BACnet connectivity for integration with third-party DCIM platforms. Pairing with an APC Network Management Card 3 (AP9641 or AP9643) adds remote monitoring, alerting, and firmware management over IP.

For condensing-side connectivity, the ACRD600P requires a matched APC condensing unit — confirm the correct condensing unit model with your APC representative before ordering, as refrigerant circuit matching is critical and cannot be field-modified. Pre-charged line sets simplify installation and reduce commissioning time.

If you are deploying alongside APC UPS systems, EcoStruxure IT provides a unified view of power, cooling, and physical security assets in the same dashboard.

Frequently Asked Questions

Q: What type of cooling does the ACRD600P use — chilled water or direct expansion?

A: The ACRD600P uses direct expansion (DX) refrigeration with a self-contained refrigerant circuit. It does not require a chilled-water plant. A matched external condensing unit is required and must be specified at time of order.

Q: Does the ACRD600P fit in a standard 600mm rack row?

A: Yes. The ACRD600P is purpose-built at 600mm width to match standard rack cabinet footprints, allowing it to integrate directly into an existing row without floor tile modification.

Q: What power input does the ACRD600P require?

A: The ACRD600P operates on 200–240V AC. Verify whether your specific variant requires single-phase or three-phase input against your facility's PDU and branch circuit capacity before installation.

Q: Can the ACRD600P be monitored remotely?

A: Yes. The unit's onboard controller supports integration with APC's EcoStruxure IT and InfraStruXure management platforms. A network management card (sold separately) enables SNMP and IP-based remote monitoring and alerting.

Q: Can multiple ACRD600P units be grouped for redundancy?

A: Yes. Multiple units in a row can be configured as a group, supporting N+1 or 2N redundancy. Group control allows remaining units to ramp up capacity automatically if one unit faults. Target 70–80% utilization per unit under normal load to preserve meaningful redundancy headroom.

Q: Is the ACRD600P compatible with hot-aisle containment systems?

A: Yes. The ACRD600P is designed to work with APC hot-aisle containment systems. Containment eliminates bypass airflow and is strongly recommended at rack densities above 5kW to realize the full efficiency benefit of row-based cooling.

Eden Phillips

The ACRD600P is one of the more practical decisions you can make when a perimeter-cooled room starts running out of headroom at the rack level. Its 600mm direct-expansion row cooling architecture means you're capturing heat where it's generated rather than chasing it across an open aisle — and that architectural shift alone is often worth more than any efficiency number on a spec sheet. I've seen deployments where simply moving from perimeter to InRow on the ACRD600P dropped PUE measurably without touching a single server.

Technical Highlights:

• DX Self-Contained Refrigeration: No chilled-water dependency means faster commissioning and simpler scope of work — particularly valuable in edge or co-lo environments where a chilled-water loop is a non-starter.
• 600mm Row Integration: Matching rack-row footprint eliminates the mechanical compromise of fitting a non-standard-width unit into an existing row — no custom floor work, no structural surprises.
• 200–240V AC Input: Compatible with standard data center feed voltages, but confirm single-phase vs. three-phase input variant at order time — confusing the two creates a branch circuit problem that surfaces at commissioning, not at the desk.

Deployment Considerations:

• The ACRD600P requires a matched APC condensing unit — this is not optional and is not field-swappable. Specify the condensing unit at the same time as the InRow unit, and confirm refrigerant line-set lengths are within the manufacturer's specified run limits before finalizing rack layout.
• Hot-aisle containment is technically optional but practically essential at densities above 5kW per rack. Without containment, recirculation will undercut the efficiency advantage the row-based architecture is supposed to deliver.

For a greenfield enterprise data hall or a high-density co-lo cage expansion where chilled water isn't in scope, the ACRD600P is the unit to spec. It's less appropriate for very low-density rows where a single perimeter unit has adequate throw — the DX infrastructure cost only pays off when rack density justifies it.