SmoothAir – Rear Door Heat Exchanger

SmoothAir rear door heat exchanger - rack-mounted DX cooling system with up to 30kW capacity for high-density servers
Ideal for high-density environments like AI, HPC, and edge computing, the SmoothAir rear door heat exchanger delivers up to 30kW of cooling capacity while adding less than 380mm of depth to existing racks. Its DX-based design eliminates the need for complex water loops or manifolds, simplifying installation and maintenance.

The onboard smart control system, accessible via Web, SNMP, or Modbus, provides real-time monitoring and remote management for optimized energy efficiency and reliable operation.

Ideal for: Micro data center, small-medium-large server room, edge space, etc.

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Key Advantages & System Highlights

Flexibility

  • Suitable for any rack.
  • Flexible piping design allows normal door open and normal access to server equipment from rear of rack easily.
  • Seamless integration with IT rack system. Easy transportation and installation.
  • Modular design supports easy expansion for future business developments.

Efficiency

  • High Efficiency with pump refrigerant free cooling, inverter compressor and EC fans.
  • Green refrigerant R134A with lower working pressure, zero ODP(ozone depletion potential) effect, and lower GWP(global warming potential)
  • Heat is discharged directly from the rack, high inlet temperature brings maximum energy efficiency.

Relibility

  • Top level components ensures high reliability and long working life.
  • DX based design, no need complex water loops and manifolds.
  • Mature smart control system can control, monitor, and access the key working status locally and remotely.

Slim and Flexible of Modularized Design

Available in three widths and three depths, air flow front / side discharge, and adjustable vent air baffle. Allows us to provide a customized fit for different data center configurations. Suitable for racks from any manufacturers, you can also easily expand or reconfigure your cooling infrastructure without disrupting the existing setup.

Ideal for High Density Application

The growing demand for expansive data storage and computing capacity confronts data centers with a critical challenge. Traditional cooling solutions struggle to cope with rasing heat densities. The RDx system, functioning as a rear-mounted radiator door on the rack, facilitates efficient heat exchange with cooling gas or water. This minimizes the risk of hot air recirculation within the rack, ensuring optimal operating conditions for data servers.
SmoothAir optimized rear door heat exchanger - adds less than 380mm depth, DX based design for even cooling distribution in high-density racks

Optimized Design

  • Less than 380mm additional rack depth, Adaptable to all height types of Racks.
  • DX based design, no need complex water loops and manifolds.
  • Upto 30kW cooling capacity and optimized cooling air distribution, to ensure even cooling effects within the high density rack.
  • Seamless integration with IT rack system, no need to separate hot/cold aisles.
Smoothair smart controller for wall mount cooling - Web/SNMP/Modbus monitoring, 1000+ alarms, 7-day history records, and teamworking modes

Intelligent Control System

  • Industry leading smart control system, with insightful sensor data and intelligent control logics.
  • All digital control to major components, maintaining optimum working status, and flexible adjustment per onsite working conditions.
  • 1000+ alarm records, and 7days history pressure curve records, 7days history temperature curve records.
  • Smart monitoring protocols: Web/SNMP/Modbus/Bac-net/Email/Dry contact/IPV6.
  • Built in web server support visit with web-browser from computers and mobile devices, can view ,control unit through web.

Key Components

SmoothAir inverter compressor for rack cooling - 30%-100% capacity modulation, R410A refrigerant for stable temperature control and energy saving

Inverter Compressor

  • Capacity adjustable 30%-100%.
  • Stable working and improved compressor life by Modulating compressor speed.
  • No on/off inrush working mode.
  • Green refrigerant R134A no ODP effect.
SmoothAir EC fans for precision cooling - speed 0%-100% adjustable, direct drive, high external static pressure for flexible rack deployment

EC Fans

  • Best in class design and reliability.
  • Highest efficiency EC Fan system.
  • Speed adjustable 0%-100%.
  • Direct drive system no belts easier replacement and service.
  • Higher external static flexible for special application.
SmoothAir electronic expansion valve - automatically adjusts refrigerant flow, improves COP in low-temperature seasons, ensures compressor startup reliability

Electronic Expansion Valve

  • Automatically modulating refrigerant flow per system requirement.
  • Better COP performance during low temperature season comparing TEV system.
  • Better refrigerant flow feeding during compressor startup, to reach higher reliability of compressor working.

Resources Download

Product Brochure

SmoothAir Rear Door Heat Exchanger Brochure
Download PDF

User Manual

Attom SmoothAir Modular Cooling User Manual
Download PDF
Please contact ATTOM customer support to download the PDF manual.

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Data Center Solution Sales Manager

About Attom Technology

We are a global leader in critical data center infrastructure, specializing in high-density AI data center thermal management and liquid cooling solutions. As AI workloads drive unprecedented demand for advanced cooling, we are rapidly expanding our footprint in North America. We are looking for visionary, driven, and highly technical professionals to join our newly established Silicon Valley team to drive the future of sustainable, high-performance data centers.
Backed by the industrial giant Han’s Laser — a globally recognized leader in smart manufacturing and automation equipment — Attom Technology leverages a world-class industrial platform and robust financial strength to deliver critical data center infrastructure.

Location: Silicon Valley, CA (Hybrid/On-site)

Position Summary:

We are looking for a highly motivated Sales Manager to drive revenue growth in the North American market. You will be on the front lines, targeting enterprise data centers, AI startups, and regional colocation facilities, selling our cutting-edge liquid cooling infrastructure portfolio.

Key Responsibilities:

  • Achieve and exceed regional sales targets for our liquid cooling and thermal management products.

  • Manage the full sales cycle from prospecting and lead generation to contract negotiation and closing.

  • Develop and maintain strong, long-lasting direct relationships with data center facility managers, IT directors, and procurement teams.

  • Collaborate with the Product Technical Manager to deliver tailored presentations and proof-of-concept (PoC) proposals.

  • Maintain accurate sales forecasting and pipeline management using CRM tools (e.g., Zoho CRM).

Qualifications:

  • 3+ years of direct B2B sales experience in data center power, cooling, or IT infrastructure.

  • Product Knowledge: Familiarity with selling cooling solutions such as CDU, CRAC, CRAH, RDHx, Cold-plate, and Chillers.

  • Industry Experience: Prior sales experience at companies like Vertiv, Schneider/APC, Eaton, Stulz, Airsys, or sales roles within the IT hardware sector (Cisco, Lenovo, Broadcom) with a focus on infrastructure.

  • Hunter mentality with a proven track record of breaking into new accounts and growing market share in the Silicon Valley tech ecosystem.

  • Strong presentation and closing skills.

Application email: support@attom.tech

Data Center Solution Technical Manager

About Attom Technology

We are a global leader in critical data center infrastructure, specializing in high-density AI data center thermal management and liquid cooling solutions. As AI workloads drive unprecedented demand for advanced cooling, we are rapidly expanding our footprint in North America. We are looking for visionary, driven, and highly technical professionals to join our newly established Silicon Valley team to drive the future of sustainable, high-performance data centers.
Backed by the industrial giant Han’s Laser — a globally recognized leader in smart manufacturing and automation equipment — Attom Technology leverages a world-class industrial platform and robust financial strength to deliver critical data center infrastructure.

Location: Silicon Valley, CA (Hybrid/On-site)

Position Summary:
The Product Technical Manager will act as the technical bridge between our North American clients and our global R&D team. You will be the resident expert on our liquid cooling portfolio, guiding customers through complex thermal system designs, and ensuring our products perfectly align with local compliance and technical requirements.

Key Responsibilities:

  • Lead technical pre-sales engagements, providing expert consultation on liquid cooling architectures for high-density AI workloads.

  • Develop comprehensive technical proposals, system designs, and ROI analyses for clients involving CDU, RDHx, and direct-to-chip (Cold-plate) deployments.

  • Act as the Voice of the Customer (VoC) in North America, gathering detailed technical requirements and feeding them back to the R&D center to drive product localization and innovation.

  • Ensure products meet North American standards (e.g., UL, ASHRAE guidelines).

  • Provide training and technical support to the regional sales team and channel partners.

Qualifications:

  • Bachelor’s or Master’s degree in Mechanical Engineering, Thermodynamics, Electrical Engineering, or a related technical field.

  • 2+ years of experience in product management, technical pre-sales, or thermal engineering within the data center or IT hardware industry.

  • Technical Proficiency: Mastery in the design and application of CDU, CRAC, CRAH, RDHx, Cold-plate, and Chiller systems. (Familiarity with piping diagrams, valve configurations, and redundancy classifications is highly preferred).

  • Target Background: Previous roles at infrastructure leaders (Vertiv, nVent, Motivair, Schneider, Boyd, Stulz, etc.) or thermal engineering roles at major IT/Semiconductor companies (NVIDIA, AMD, Intel, Lenovo, etc.).

  • Ability to translate complex technical concepts into clear business value propositions.

Application email: support@attom.tech

Data Center Solution Business Development Director

About Attom Technology

We are a global leader in critical data center infrastructure, specializing in high-density AI data center thermal management and liquid cooling solutions. As AI workloads drive unprecedented demand for advanced cooling, we are rapidly expanding our footprint in North America. We are looking for visionary, driven, and highly technical professionals to join our newly established Silicon Valley team to drive the future of sustainable, high-performance data centers.
Backed by the industrial giant Han’s Laser — a globally recognized leader in smart manufacturing and automation equipment — Attom Technology leverages a world-class industrial platform and robust financial strength to deliver critical data center infrastructure.

Location: Silicon Valley, CA (Hybrid/On-site)

Position Summary:
We are seeking an experienced Business Development Director to spearhead our Go-To-Market (GTM) strategy for data center thermal management liquid cooling solutions in North America. You will be instrumental in building strategic partnerships with Hyperscalers, Colocation providers, and top-tier IT hardware manufacturers, establishing our brand presence, and identifying new market opportunities in the fast-growing AI data center ecosystem.

Key Responsibilities:

  • Develop and execute a comprehensive North American business development strategy focused on high-density liquid cooling solutions.
  • Identify, negotiate, and close strategic partnerships with key players in the AI and data center ecosystem (e.g., server OEMs, AI chip developers).
  • Collaborate closely with the global HQ to align product roadmaps with North American market trends and client demands.
  • Represent the company at industry events (e.g., Data Center World, OCP, DCD) to build brand awareness and thought leadership.
  • Build and manage a robust pipeline of high-level strategic opportunities.

Qualifications:

  • 5+ years of business development or strategic sales experience in the data center infrastructure or IT thermal management sector.
  • Industry Background: Proven track record at leading thermal management companies (e.g., Vertiv, nVent, Motivair, Schneider/APC, Boyd, Eaton, Stulz, Airsys) OR IT hardware giants with a focus on thermal ecosystems (NVIDIA, AMD, Broadcom, Intel, Lenovo, Oracle, Cisco).
  • Technical Expertise: Deep commercial understanding of advanced cooling technologies including CDU, CRAC, CRAH, RDHx, Cold-plate, and Chillers.
  • Strong existing network with decision-makers at hyperscale cloud providers and colocation data centers in the Silicon Valley area.
  • Excellent communication, negotiation, and cross-cultural collaboration skills.

Application email: support@attom.tech

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