Table of Contents
A closed loop cooling system that removes the high levels of heat generated by today’s servers, mass storage, and core networking hardware
The HPE Adaptive Rack Cooling System allows for simultaneous cooling of up to four racks and 150 kW of IT capacity when used in conjunction with the HPE Adaptive Rack Cooling System 42U or 48U racks.
Overview
The HPE Adaptive Rack Cooling System complements new or existing data centers by enabling growth in computing power without increasing the heat load in the data center. By providing cooling capacity comparable to commodity direct liquid cooling, the system can considerably extend the life of the data center. Its horizontal airflow supports industry-standard front-to-back cooling designs and standard server dimensions. Variable-speed fans improve energy efficiency while providing each device with the appropriate airflow, regardless of mounting position or workload.
Standard Features
Key Features
General Solution
- – Self-contained, (closed-coupled) solution that supports up to 4 ull racks of IT
- – Closed-coupled cooling ensures uniform horizontal airflow
Cooling Capacity
- – Up to 150 kW cooling capacity or 110 kW in an N+1 fan configuration
Water
- – Supports a facility inlet water temperature range of 7°C to 32°C.
Efficiency
- – Warm water cooling ready: support IT loads up to 75 kW at 30°C inlet water with 70 gallons per minute (GPM) and a server supply air temperature of 35°C.
- – Includes four front-swappable fans per high-efficiency heat exchanger resulting in a pPUE as low as 1.05
Power
- – Supports 380 VAC or 480 VAC three-phase input power.
- – Automatic Transfer Switch providing redundant power input
Availability and Reliability
- – Advanced condensate management
- – Integrated automatic door opening system (optional) and remote environmental monitor
- – Supports HPCM
Flexibility
- – Extend cooling to as many as four racks with optional HPE Adaptive Rack Cooling System 42U or 48U racks for IT equipment.
- – HPE Apollo 42U or 48U racks for IT equipment support shipment of fully integrated rack solutions through HPE Factory Express or partner rack integration. The racks are delivered on shock pallets.
- – Underfloor and overhead plumbing capabilities
- – Full services offering available, including planning, deployment and maintenance
For the site preparation guide, visit https://www.HPE.com/psnow/doc/a00046603en_us.
Agency Certifications
- – UL certification for Canada, Americas, and Japan
- – CE certification for European countries
| Models | |
| HPE Adaptive Rack Cooling System v2 Cooling Unit Rack | R8N93A |
| Notes: – V2 Cooling Unit Rack is introduced to accommodate new agency requirements; functionally the same as P9E36A; only difference is new fan and transfer switch inside the Cooling Unit Rack for agency requirements – Will become orderable in November 2021, and shippable in January, 2022 timeframe. | |
| The HPE Adaptive Rack Cooling System v2 cooling unit rack includes:
| |
Configuration Information
For the most up-to-date information on HPE Services, please refer to the HPE Services – Supplemental QuickSpecs, which provides a comprehensive and regularly updated overview of available services.
| HPE ARCS 42U 600x1660mm Rack | SKU |
| HPE ARCS 42U 600x1600mm Rack | Q8L41A |
| Notes: – The optional 42U IT rack for the HPE Adaptive Rack Cooling System ships separately from the cooling unit on a shock pallet. – 1 vertical PDU bracket included | |
| HPE ARCS 48U 600x1660mm Rack | SKU |
| HPE ARCS 48U 600x1600mm Rack | Q7G92A |
| Notes: – Optional IT Rack (48U) for the HPE ARC System – ships on shock pallet – ships separately from the Cooling unit – 1 vertical PDU bracket included. | |
| HPE ARCS 48U 800x1660mm Rack | SKU |
| HPE ARCS 48U 800x1600mm Rack | R8N95A |
| Notes: – Optional IT Rack (48U) for the HPE ARC System – ships on shock pallet – ships separately from the Cooling unit – 1 vertical PDU bracket included. | |
| HPE ARCS 42U 800x1660mm Rack | SKU |
| HPE ARCS 42U 800x1600mm Rack | S4J53A |
| Notes: – Optional IT Rack (42U) for the HPE ARC System – ships on shock pallet – ships separately from the Cooling unit – 1 vertical PDU bracket included. | |
| HPE ARCS Auto Door Controller Kit | SKU |
| HPE ARCS Auto Door Controller Kit | P06116-B21 |
| Notes: – Requires 1 kit per cooling unit (P9E36A) which supports up to 4 racks. – Requires 1 HPE ARCS Auto Door Release Kit (P00674-B21) per rack. – In redundant cooling unit configs, only 1 cooling unit controls the Auto Door Release. – Controller will be installed in the IT rack closest to the cooling unit. | |
| HPE ARCS Auto Door Release Kit | SKU |
| HPE ARCS Auto Door Release Kit | P00674-B21 |
| Notes: Requires 1 Kit per ARCS rack and 1 Auto Door Controller Kit per cooling unit (P06116-B21). In redundant cooling unit configs, only 1 cooling unit controls the Auto Door Release. | |
| HPE ARCS 42U Air Rack Installation Kit | SKU |
| HPE ARCS 42U Air Rack Installation Kit | P04444-B21 |
| Notes: 1 Rack installation Kit per continuous ARCS system row. The same kit is used for both 42U and 48U racks | |
| HPE ARCS 48U Air Rack Installation Kit | SKU |
| HPE ARCS 48U Air Rack Installation Kit | P05408-B21 |
| Notes: 1 Kit needed per ARCS cooling rack if 48U IT racks are joined to the 42U cooling unit. Includes façade above the 42U cooling unit to match the 48U racks on either side. A P04444-B21 Kit is also needed per continuous ARCS row in addition to this kit | |
| HPE ARCS Water Hookup Kit | SKU |
| HPE ARCS Water Hookup Kit | P00675-B21 |
| Notes: – Requires 1 kit per cooling unit (P9E36A). – Kit includes (qty. 2) 6 foot hoses for facility water connection which terminate to 2 inch sanitary fitting for facility connection. Optional stainless steel adapters include S0B11A, (qty. 2) 2 inch sanitary fitting to 2 inch female BSPT and R9K45A, (qty. 2) 2 inch sanitary fitting to 2 inch female NPT Customer required to provide 2 inch male BSPT or NPT fitting. | |
| HPE Adaptive Rack Cooling System international power cords | SKU |
| HPE ARCS IEC 60309 IP67 415V 5m INTL Power Cord | R7H41A |
| Notes: Select 1 kit per cooling unit. Each kit comes with 2 power cords | |
| HPE ARCS NA Power Cords | SKU |
| HPE ARCS NEMA L22-20 4P/5W 277-480V 4.5m NA Power Cord | 872174-B21 |
| HPE ARCS IEC 60309 IP67 480V 5m Power Cord | R7H40A |
| Notes: Select 1 kit per cooling unit. Each kit comes with 2 power cords | |
HPE Universal 1U Filler Panels | |
| Blanking panels are made from high-grade molded plastic and are designed for tool-free installation. Use blanking panels to help maintain proper airflow through unused rack units. | SKU |
| HPE 1U 10-pack Black Universal Filler Panel | BW928A |
| Notes: Pack of 10 | |
| HPE 1U 100-pack Black Universal Filler Panel | BW929A |
| Notes: Pack of 100 | |
| HPE ARCS Side Panel Kits | SKU |
| HPE ARCS IT Rack 48U Single Side Panel Kit | R8F94A |
| HPE ARCS IT Rack 42U Side Panel Kit | R8F95A |
| HPE ARCS Cooling Unit Side Panel Kit | R8F96A |
| HPE ARCS Extension Space Bracket Kit | SKU |
| HPE ARCS Extension Space FIO Bracket Kit | S6C55A |
| HPE Install ARCS SVC Flexible Support | SKU |
| HPE Install ARCS SVC | HA113A1#5CW |
| HPE Install ARCS SVC Fixed Support | SKU |
| HPE Installation Adaptive Rack Cooling System Service | UE005E |
| Notes: Service Deployment activities for HPE Adaptive Rack Cooling System may include:
| |
Notes: Rack count dependent on configuration
Technical Specifications
HPE Adaptive Rack Cooling Unit, 42U and 48U Rack Specifications
Notes: The HPE ARC System Rack (for IT equipment) ships separately on shock pallet and must be attached onsite.
| | ARCS Cooling Unit | 42U Rack (600 mm wide) | 48U Rack (600 mm wide) | 48U Rack (800 mm wide) | 42U Rack (800 mm wide) |
|---|---|---|---|---|---|
| Dimensions | |||||
| Height | 78.7 in. (2,007 mm) | 78.7 in. (2,007 mm) | 90.4 in. (2,295 mm) | 90.4 in. (2,295 mm) | 78.7 in. (2,007 mm) |
| Width | 23.6 in. (600 mm) | 23.6 in. (600 mm) | 23.6 in. (600 mm) | 31.5 in. (800 mm) | 31.5 in. (800 mm) |
| Depth | 65.4 in. (1,660 mm) | 65.4 in. (1,660 mm) | 65.4 in. (1,660 mm) | 65.4 in. (1,660 mm) | 65.4 in. (1,660 mm) |
| Shipping Height (on skid) | 86.5 in. (2,197 mm) | 86.5 in. (2,197 mm) | 97.44 in. (2,475 mm) | 97.44 (2,475 mm) | 86.5 in. (2,197 mm) |
| Shipping Width (on skid) | 48 in. (1,220 mm) | 48 in. (1,220 mm) | 48 in. (1,220 mm) | 48 in. (1,220 mm) | 48 in. (1,220 mm) |
| Shipping Depth (on skid) | 72 in. (1,829 mm) | 72 in. (1,829 mm) | 72 in. (1,829 mm) | 72 in. (1,829 mm) | 72 in. (1,829 mm) |
| Ramp Length | 109 in. (2,769 mm) | 109 in. (2,769 mm) | 109 in. (2,769 mm) | 109 in. (2,769 mm) | 109 in. (2,769 mm) |
| Offloading Ramp Clearance | 21.5 ft. | 21.5 ft. | 21.5 ft. | 21.5 ft. | 21.5 ft. |
| Weight | |||||
| Net | 1,423 lbs (645 kg) | 387 lbs (175.5 kg) | 398 lbs (180.5 kg) | 425 lbs (192.8 kg) | 413 lbs (187.3 kg) |
| Shipping | 1,614 lbs (732 kg) | 748 lbs (339.3 kg) | 803 lbs (364.2 kg) | 828 lbs (375.6 kg) | 771 lbs (349.7 kg) |
| Load | |||||
| Static | N/A | 3,000 lbs (1,364 kg) | 3,000 lbs (1,364 kg) | 3,000 lbs (1,364 kg) | 3,000 lbs (1,364 kg) |
| Dynamic | N/A | 3,000 lbs (1,364) | 3,000 lbs (1,364 kg) | 3,000 lbs (1,364 kg) | 3,000 lbs (1,364 kg) |
| Color | |||||
| Doors | Black | Black | Black | Black | Black |
| Frame | Black | Black | Black | Black | Black |
| Warranty | |||||
| ARCS 42U and 48U Rack | 3-3-3 | 3-0-0 | 3-0-0 | 3-0-0 | 3-0-0 |
Environment-friendly products and approach: End-of-life management and recycling
Hewlett Packard Enterprise offers end-of-life product return, trade-in, and recycling programs, in many geographic areas, for our products. Products returned to Hewlett Packard Enterprise will be recycled, recovered or disposed of in a responsible manner.
The EU WEEE Directive (2012/19/EU) requires manufacturers to provide treatment information for each product type for use by treatment facilities. This information (product disassembly instructions) is posted on the Hewlett Packard Enterprise web site. These instructions may be used by recyclers and other WEEE treatment facilities as well as Hewlett Packard Enterprise OEM customers who integrate and re-sell Hewlett Packard Enterprise equipment.
Summary of Changes
| Date | Version History | Action | Description of Change |
|---|---|---|---|
| 21-Sep-2026 | Changed | Replaced references to "HPE GreenLake" with "GreenLake" to align with current branding standards. | |
| 16-Feb-2026 | Changed | Visual rebranding only—updated typography, colors, and design elements to align with new HPE brand standards. No technical specifications or content were modified. | |
| 02-Sep-2025 | Added | Added S6C55A. | |
| 04-Aug-2025 | Changed | Configuration Information section was updated. | |
| Added | SKU S6C55A was added. (HPE ARCS Extension Space Bracket Kit). | ||
| 27-May-2025 | Changed | Updated facility water connection SKUs. Configuration Information section was updated | |
| 03-Mar-2025 | Changed | Added 42U IT Rack SKU Standard Features and Configuration Information sections were updated | |
| 04-Dec-2023 | Changed | HPE Services Rebranding | |
| 16-Oct-2023 | Changed | Service and Support, Configuration Information and Technical Specifications sections were updated | |
| 07-Aug-2023 | Changed | Standard Features and Configuration Information sections were updated. Obsolete SKUs were removed. | |
| 11-Oct-2021 | Changed | Service and Support section was updated. | |
| 07-Sep-2021 | Changed | Standard Features and Configuration Information sections were updated. | |
| 19-Apr-2021 | Changed | Configuration Information section was updated. | |
| 01-Feb-2021 | Changed | Configuration Information section was updated. | |
| 03-Feb-2020 | Changed | Standard Features section was updated | |
| 03-Sep-2019 | Changed | Configuration Information section was updated. | |
| 15-Jul-2019 | Changed | Configuration Information section was updated | |
| 01-Jul-2019 | Changed | Standard Features section was updated | |
| 15-Apr-2019 | Changed | Overview section was updated | |
| 07-Jan-2019 | Changed | Overview and configuration information sections were updated | |
| 03-Dec-2018 | New | New QuickSpecs |
© Copyright 2026 Hewlett Packard Enterprise Development LP. The information contained herein is subject to change without notice. The only warranties for Hewlett Packard Enterprise products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. Hewlett Packard Enterprise shall not be liable for technical or editorial errors or omissions contained herein.
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