Middle Atlantic High CFM Split Rear Door for 45 RU Racks

Designed for professional data centers and data‑room environments, the Middle Atlantic High CFM Split Rear Door for 45 RU racks delivers enterprise‑grade cooling performance in a compact, cupboard‑style enclosure. The system centers on an adjustable six‑fan High CFM rear door that captures heat at the back of the cabinet and efficiently channels it upward toward the building’s return air ducts. This thoughtful design helps protect critical equipment from thermal stress, reduces rear‑facing hot spots, and improves overall cooling efficiency in dense workloads. With precise airflow control, adjustable fan placement, and a robust, serviceable construction, the MW‑CFRD‑45 is built to support reliability, uptime, and energy‑efficient operation in demanding rack environments.

• Powerful airflow for demanding workloads: The six high‑CFM fans work in concert to move large volumes of air, rapidly removing heat generated by servers, NVRs, DVRs, and other high‑density components. By reducing rear heat buildup, it helps maintain safe operating temperatures, minimize thermal throttling, and keep equipment performing at peak efficiency even during peak utilization periods. This sustained cooling capability translates to longer hardware life, reduced fan noise from unnecessary overcooling, and greater confidence in sustaining intensive workloads without overheating concerns.
• Adjustable fan placement for flexible deployment: The door’s fan array can be repositioned to align with your cabinet layout and airflow strategy. This adaptability allows you to tailor the hot air extraction path to variations in rack configurations, cable management, and return duct routing. Whether you are upgrading an existing 45 RU enclosure or reconfiguring a data room, the ability to fine‑tune fan placement supports optimal cooling performance and energy efficiency across changing workloads.
• Cupboard‑style split rear door for easy maintenance: The split, cupboard‑style design provides convenient access to rear components without compromising containment or front‑of‑rack accessibility. By pulling hot air from the cabinet’s rear and directing it toward return air ducts, the door improves heat extraction efficiency while preserving cable management and serviceability. The split configuration also facilitates routine inspections, component swaps, and airflow adjustments with minimal disruption to active equipment.
• Designed for 45 RU racks: Built to fit standard 45 rack units, this door integrates seamlessly with Middle Atlantic enclosures and compatible 19‑inch cabinet systems. The tailored fit minimizes air leaks and ensures consistent performance across duty cycles in busy data rooms. For facilities using dense rack trays and high airflow demands, the MW‑CFRD‑45 provides a reliable, scalable cooling solution that aligns with existing rack footprints and mounting patterns.
• Reliability, protection and energy‑conscious cooling: By efficiently removing heat at the source, the High CFM Rear Door supports equipment longevity, reduces thermal stress on components, and contributes to a more stable data center environment. The robust construction and engineered airflow path reduce vibration and mechanical strain on cabinet hardware, while enabling smarter energy use through targeted cooling where it’s needed most. In environments where uptime matters, this door helps maintain consistent ambient temperatures and improves overall cooling system effectiveness.

Technical Details of MW-CFRD-45

• The MW-CFRD-45 is a high‑CFM split rear door equipped with an adjustable six‑fan array designed to extract heat from the rear of 45 RU rack enclosures and route it toward return air pathways.
• Compatibility centers on standard 19‑inch rack systems configured to accommodate 45 RU height, enabling seamless installation with Middle Atlantic products and similar cabinet platforms.
• Airflow management emphasizes rear‑to‑front containment principles, focusing on efficient heat removal at the source to improve cooling efficiency and reduce the risk of hot spots in dense rack deployments.
• Adjustable fan placement allows operators to customize airflow trajectories to match cabinet layout, cable management, and return duct routing, providing flexible optimization even as workloads evolve.
• Design emphasizes serviceability and ease of maintenance, with a cupboard approach that supports straightforward access to rear components while maintaining secure enclosure integrity during operation.

how to install MW-CFRD-45

• Confirm compatibility: Verify that your cabinet is a standard 45 RU rack with 19‑inch mounting rails and that the space behind the rack accommodates the rear door’s dimensions and the return air ducting you plan to use.
• Prepare the enclosure: Power down any equipment as required, clear access to the back of the cabinet, and ensure there is sufficient clearance for the door to swing open and for airflow to reach the return air pathway without obstruction.
• Remove or prepare the existing rear door: If replacing an existing rear door, disconnect and remove it according to the cabinet manufacturer’s instructions, keeping hardware organized for the MW‑CFRD‑45 installation.
• Mount the split rear door: Align the MW‑CFRD‑45 with the cabinet’s rear mounting points and secure it using the supplied hardware. Ensure a tight, level fit to minimize air leaks and to keep the door stable during operation and airflow adjustments.
• Configure airflow and connections: Position the six fans to match your optimal airflow path, and attach any recommended ducting or return air connections per the product manual. Ensure all electrical connections follow local code and are performed by qualified personnel in accordance with the manufacturer’s guidelines.
• Test and adjust: Power on the door’s fan system, verify that airflow moves from the rear toward the return ducts, and observe temperature readings at critical server locations. If needed, adjust fan placement to balance cooling across the rack and reduce rear hot spots without overcooling the front of the cabinet.

Frequently asked questions

• Q: What is the primary purpose of the MW-CFRD-45 High CFM Split Rear Door? A: Its primary purpose is to actively remove heat from the rear of 45 RU rack enclosures, directing hot air toward the building’s return air ducts, thereby improving cooling efficiency and protecting equipment from heat‑related stress.
• Q: Which racks are compatible with this door? A: The MW-CFRD-45 is designed for standard 45 RU, 19‑inch rack systems and integrates with Middle Atlantic enclosure families and similar cabinet configurations that share common mounting patterns and dimensions.
• Q: How does adjustable fan placement benefit me? A: Adjustable fan placement lets you tailor airflow paths to match your specific cabinet layout, cable management, and return duct routing. This flexibility supports optimal cooling in dynamic environments where rack density or configurations change over time.
• Q: Do I need specialized tools or power for installation? A: Installation should follow the manufacturer’s guidelines and local electrical codes, with qualified personnel performing any electrical connections. The door’s fans are integrated components intended to operate as part of the cabinet cooling system.
• Q: Will this door help reduce noise or is it solely about temperature? A: By removing heat efficiently and minimizing thermal throttling, the door can reduce the need for fans to operate at maximum speed for extended periods, which can contribute to quieter operation and more stable temperatures in busy data rooms.