Coolnet CJA0003 3.5kW 5U Rack-Mounted Inverter Air Conditioner with 800 m3/h EC Airflow for Enclosed Micro Data Center Cabinets

The Coolnet CJA0003 is a split-type, air-cooled rack cooling unit designed for enclosed server cabinets and micro data center projects. Its 5U indoor unit fits a standard 19-inch rack and positions cooling close to IT equipment, helping shorten the return-air path and manage localized heat inside the cabinet.

With 3.5kW total and sensible cooling capacity and 800 m³/h airflow at the stated rating conditions, this model is suited to cabinet-level temperature control. A DC inverter refrigeration system adjusts cooling output to demand, while an EC centrifugal fan regulates airflow. Rack-mounted construction preserves server-room floor space and supports modular equipment layouts.

• Variable-capacity inverter cooling for changing IT heat loads.
• EC centrifugal fan with demand-based airflow adjustment.
• Precision cooling controls with fault alarms, protection and remote monitoring support.
• Front-access maintenance and quick-coupling refrigeration connections simplify service.
• R410A refrigerant and a separate outdoor condenser.

Rating conditions: indoor dry-bulb 37°C, wet-bulb 21°C, and outdoor dry-bulb 35°C. Capacity and dimensions must be checked against the selected configuration and equipment nameplate.

Designed for enclosed micro data center cabinets, single-row IT cabinets and modular computer-room projects. Confirm the cabinet's available rack space, equipment heat load, airflow path, condenser position, piping route and drainage arrangement before selection. The outdoor unit is powered from the indoor unit. A 4.3-inch touchscreen is an optional accessory and is not included as standard.