Koolance VLR-600 3U Server Rack, R-134a 600W Liquid Chiller

The Koolance VLR-600 is an external liquid cooler with a compressor designed for high-performance cooling loops. Offering up to 600 W of cooling capacity, an integrated pump, and a 1.7-liter large reservoir, it forms a self-contained cooling unit. The 3U chassis can be installed in 19-inch rackmounts, making it suitable for structured technical and server environments.

– 600W cooling capacity for demanding systems
– Up to 13 l/min for high coolant flow
– 3U chassis for 19-inch rackmounts
– OLED display shows relevant operating data
– USB connection enables monitoring and logging
– Active cooling with up to 600 W

The VLR-600 operates with a compressor and the refrigerator R-134a. At 25 °C coolant and ambient temperature, the system achieves a cooling capacity of up to 600 W. This makes it suitable for applications where a conventional radiator solution does not provide sufficient cooling reserve.

Designed for installation in 19-inch rackmounts
The 3U chassis is designed for installation in 19-inch rackmounts. This allows the liquid cooler to be neatly integrated into existing rack systems while remaining easily accessible. This is particularly practical for professional test stands, server environments, and other stationary cooling setups.

Targeted control of temperature and flow
The integrated pump offers ten manual power levels and reaches a flow rate of up to 13 l/min. Multiple temperature modes allow for fixed coolant values ​​or regulation depending on ambient temperature. Operating data can be monitored and logged via USB, while the OLED display shows important values ​​directly on the device.

Chiller control is based on one of four configurable temperature set-points, including the option to lock liquid to ambient for avoiding condensation or to an external K-type thermocouple sensor (not included). Coolant flow rate, temperature, and reservoir level are monitored, and a USB port allows control and logging of most features using the Koolance System Monitor application. A 0-5V differential voltage output is also provided for industrial process monitoring.

For added convenience during refilling and draining, Koolance QDT3 quick disconnects are located on the front. To utilize them, a QDT3-F10X13 quick disconnect, funnel, and short fill/drain tubing are included with VLR-600.

– Cooling capacity: 600W (2047BTU/hr) @ 25°C liquid/ambient
– Temperature options: liquid set-point, external thermocouple set-point, liquid and ambient delta-T, external thermocouple and ambient delta-T; toggle °C/°F
– Pump: 10 manual levels, up to 13LPM (3.4 GPM)
– Select only values ​​you want displayed on the front 2-line OLED display (fixed or rotating)
– Show pump impeller speed in RPM
– Show coolant flow rate in LPM/GPM
– Show condenser fan speed in RPM
– Adjust audio alarm and relay trigger (NO or NC) based on: temperature, flow rate, coolant level, pump RPM, and condenser fan RPM
– Refrigerant: R-134a
– Maximum power consumption @ ambient (approximate): 240W @ 25°C
– Designed for an operational temperature range of 0-40°C (ambient and liquid)
– Reservoir capacity: 1.7 liters
– NPT 3/8in threads on back for fittings
– Koolance QDT3 series quick disconnects on front for easier filling/draining (1pcs of QDT3-F10X13 fitting is included)
– Includes C13 to NEMA 5-15 power cord

NOTE: Keep unit upright at all times, and for at least 24 hours before applying power to ensure sufficient oil reaches the compressor.