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CS L 30 V A
CHUNSHU COOLING
3kW Vertical BESS Liquid Cooling Unit
Compact Liquid Cooling Unit for Battery Energy Storage Cabinets
The 3kW Vertical BESS Liquid Cooling Unit is designed for liquid-cooled battery energy storage cabinets where stable coolant temperature control and compact cabinet integration are required. With a narrow vertical structure, the unit is suitable for BESS cabinet layouts with limited installation width and can be integrated into commercial and industrial battery energy storage systems.
The unit combines refrigeration, coolant circulation, PTC liquid heating and intelligent temperature control in one packaged design. It helps maintain stable coolant supply temperature, reduce temperature differences between battery modules, and support reliable long-term operation of liquid-cooled battery systems.
For system integration, the unit supports Modbus-RS485 and CAN communication, allowing connection with compatible BMS, EMS or host controllers. It is suitable for BESS cabinets, outdoor battery cabinets, C&I energy storage systems, and renewable energy storage projects.
Application image — liquid cooling unit connected with BESS battery cabinet
This vertical liquid cooling unit is developed for compact battery cabinet applications. The vertical mounting design helps save horizontal space and supports flexible installation inside or alongside the battery cabinet.
The coolant circuit can be connected to battery cold plates, manifolds or external liquid cooling loops. Through controlled coolant circulation, the unit transfers heat from the battery system to the refrigeration circuit, helping the battery system operate within a stable temperature range.
Compact vertical structure for BESS cabinet installation
Suitable for liquid-cooled battery cabinets and C&I energy storage systems
Integrated refrigeration, circulation and heating functions
Stable coolant temperature control for battery thermal management
Communication interface for host controller integration
Designed for 24/7 operation in energy storage applications
The unit provides 3.0kW rated cooling capacity and is suitable for small and medium liquid-cooled battery energy storage cabinets. It is ideal for BESS applications where stable coolant temperature and compact structure are required.
The vertical structure is suitable for cabinet layouts with limited mounting space. It helps simplify system integration and allows flexible installation according to the battery cabinet design.
In addition to cooling, the unit is equipped with a PTC liquid heater. This supports coolant heating under low-temperature conditions and helps improve system adaptability in different climates.
The integrated circulation pump drives water-glycol coolant through the battery cooling loop. This helps remove battery heat efficiently and supports better temperature uniformity between battery modules.
The controller supports coolant supply temperature, coolant return temperature and cell temperature control modes. This allows the unit to adapt to different battery thermal management strategies.
Modbus-RS485 and CAN communication interfaces are available for connection with compatible BMS, EMS or host control systems. This supports remote monitoring, operating mode control and system-level integration.
The unit is suitable for commercial and industrial energy storage cabinets, outdoor BESS cabinets, solar-plus-storage systems, wind-plus-storage projects, backup power systems and peak-shaving applications.
Note: Cooling capacity is based on specified operating conditions. Final model selection should be confirmed according to battery heat load, coolant temperature, ambient temperature and system pressure loss.
Item | Specification |
|---|---|
Model | CS L 30 V A |
Product Type | Vertical BESS Liquid Cooling Unit |
Rated Cooling Capacity | 3.0kW @ W18/L45 |
Rated Cooling Input Power | 1.5kW @ W18/L45 |
Heating Capacity | 1.5kW PTC Liquid Heater |
Power Supply | 1~220VAC ±15%, 50/60Hz |
Cooling Current | Rated 7.1A / Max. 12.0A |
Heating Current | Rated 7.6A / Max. 15.0A |
Rated Coolant Flow | 25 L/min @ 90kPa |
Operating Ambient Temperature | -30°C to +55°C |
Refrigerant | R410A |
Coolant | Ethylene Glycol Aqueous Solution |
Compressor | DC Inverter Rotary Compressor |
Condenser Fan | DC Speed-Controlled Fan |
Circulation Pump | DC Electronic Speed-Controlled Pump |
Plate Heat Exchanger | Stainless Steel Plate Heat Exchanger |
Throttling Device | Expansion Valve |
Temperature Control Modes | Coolant Supply / Coolant Return / Cell Temperature |
Communication | Modbus-RS485 + CAN |
Coolant Connections | NW26 Quick Connects |
Fill / Drain Valve | Ball Valve Included |
Housing Material | SGCC Galvanized Steel |
Color | RAL 7035 |
Corrosion Protection Grade | C3 |
Maximum Noise Level | 72 dB(A) |
Dimensions | 275 × 710 × 900 mm, excluding flange |
Net Weight | Approx. 60 kg |
The 3kW Vertical BESS Liquid Cooling Unit is suitable for:
Liquid-cooled battery energy storage cabinet
Commercial and industrial BESS cabinet
Outdoor battery energy storage cabinet
Battery thermal management system
Solar-plus-storage project
Wind-plus-storage project
Peak-shaving energy storage system
Backup power energy storage system
Distributed energy storage system
The unit should be installed according to the specified vertical mounting direction. Sufficient space should be reserved for air inlet, air outlet, coolant hoses, electrical connection, commissioning and maintenance.
For stable operation, the condenser air inlet and exhaust air should be properly separated to avoid hot air re circulation. The coolant loop should be filled and purged correctly before operation, and the flow resistance of cold plates, manifolds, hoses and connectors should be checked during system design.
If the cabinet layout requires horizontal installation, a corresponding horizontal liquid cooling unit should be selected instead of changing the installation direction of this vertical model.
[Image Placeholder 6: Real project installation image or cabinet integration photo]
To recommend the suitable liquid cooling unit for your BESS project, please provide the following information:
Battery system capacity
Battery C-rate or charge/discharge condition
Estimated battery heat load
Target coolant supply and return temperature
Ambient temperature range
Coolant type and concentration
Required coolant flow and pressure loss
Cabinet layout and installation space
Power supply requirement
Communication interface requirement
Refrigerant requirement
Quantity and project schedule
Our engineering team can help review the BESS cabinet layout and recommend a suitable liquid cooling unit according to the actual operating conditions.
It is used for liquid-cooled battery energy storage cabinets. The unit controls coolant temperature and circulates water-glycol coolant through the battery cooling loop to support stable battery thermal management.
Yes. The vertical structure is designed for BESS cabinet integration, especially for cabinet layouts with limited installation width.
Yes. This model includes a PTC liquid heater to support coolant heating under low-temperature conditions.
The unit supports Modbus-RS485 and CAN communication for compatible BMS, EMS or host controller integration.
No. This model is designed for vertical installation. If horizontal installation is required, a corresponding horizontal BESS liquid cooling unit should be selected.
Battery capacity, heat load, coolant temperature, ambient temperature, flow rate, pressure loss, cabinet layout, power supply and communication requirements are recommended for model selection.
Need a liquid cooling solution for your BESS cabinet?
Send us your battery cabinet layout, heat load, coolant temperature requirement and power supply. Chunshu engineers will recommend the suitable BESS liquid cooling unit for your project.
