Company: Nortek Air Solutions

Product: ADHX 35-6B

Description: This 35kW active rear door heat exchanger (ADHX) is part of the ServerCool™ data center liquid cooling product line. The upgraded design, which is applicable for retrofits and new data centers with chilled water facilities, consumes less than 500 W of power for the 35kW of cooling it provides, which contributes to a power usage effectiveness as low as 1.033. It features redundant temperature sensors on both the ultra slim coil’s inlet and outlet to prevent overheating and provide an effective failsafe. Coils also offer both top and bottom water connections to accommodate any data center hydronic piping configurations. The user-friendly 4-inch-wide color Modbus and BACnet-compatible touchscreen controller includes dew point control and airflow/air pressure user-definable control. It also monitors, controls, and records entering and leaving water/air temperatures, and the data center hall’s ambient temperature/humidity. The control sequencing also incorporates a fan speed loop. The fan speed loop’s sensors evaluate rack server fan performance and adjust the corresponding variable electronically commutated axial fan speed from minimum to optimum speed to satisfy the coil temperature set point. An override feature allows fans to run at 100-percent capacity during high temperature events.

Contact: 800-422-4328,, eProduct 184

Want more HVAC industry news and information? Join The NEWS on Facebook, Twitter, and LinkedIn today!