

RIGID HVAC CO., LTD
DC Condensing Unit
The World's Smallest Cooling Refrigeration System-12V/24V/48V DC
- 2.5 kgs/5.5 lbs;
- Size: 7.48x6.3x5.43 inch
- Micro compressor refrigeration system;
- 12V/24V/48V mini compressor to enable peak performance;
- Cold plate refrigeration system provides reliable micro refrigeration solution;
- Mini compressor provides excellent cooling solution where size/space/efficiency are important factors.
The DC Condensing Unit is a direct expansion subsystem (without evaporator). It consists of micro dc compressor (12V/24V/48V) with R134A coolant, smallest condenser and radiator, filter drier, expansion valve or capillary, driver board and other refrigeration parts.
The DC Condensing Unit is developed aim to satisfy the growing market who wants ideal vapor-compression refrigeration cycle, to meet their compact device's small cooling demand.
RIGID DC Condensing Unit system enables the most compact designed cooling system.
It uses micro refrigeration compressor, which eliminates the use of a secondary coolant loop. This configuration enables the small dc cooling unit and uses the refrigerant to directly cool the desired equipment or device via a cold plate.
RIGID DC Condensing Unit doesn't supply cold plate (evaporator). The cold plate can be customized by endusers to adapt to their device.
However, RIGID welcome personalize orders. Our engineers are easy-going, works directly with clients to tailor made compact cooling system as you requested.
In the cold plate of dc refrigeration system, the refrigerant undergoes an isothermal phase change, which offers extremely tight temperature control across the cold plate.
Users want cooling subsystem module only to integrate or assemble with their machine or equipment, in order to get small cooling solution.
End user’s control board can connect with RIGID drive board (included) to control compressor speed and get the best performance they needed.
Except standard chiller units, RIGID also custom made or personalize small cooling modules to meet customer's special demand.
Compact DC Condensing Units
RIGID is a pioneer in miniature compressor technology and compact cooling solutions in China. We specialize in designing ultra-compact, energy-efficient systems that integrate seamlessly into modern equipment - ideal for space-constrained and performance-driven applications.
Our DC condensing units are built around four essential components: a miniature DC compressor, micro-channel condenser, expansion valve (or capillary tube), and an evaporator. Thanks to RIGID’s proprietary compressor technology, these systems provide high-performance cooling in the smallest footprint available.
RIGID’s direct expansion systems eliminate the need for traditional coolant loops, pumps, or fans - simplifying the cooling architecture and increasing efficiency. The evaporator (often a cold plate) is mounted directly to the user’s device, providing precise and efficient thermal management. This makes them ideal for medical devices, laser systems, lab instruments, electronics, and battery cooling.
Each unit comes with a patented drive board, allowing integration with the user’s control system. This enables variable-speed compressor control, optimized performance, and high-precision temperature regulation. The systems operate quietly, are highly reliable, and require no maintenance thanks to their sealed, factory-tested design.
RIGID also offers compact liquid chiller modules using low-cost, robust parts for projects requiring indirect cooling. These modules frequently integrate directly into the final system, making them suitable for OEMs and specialized product designers.
We offer custom solutions and are happy to support customers who require tailored configurations or unique system designs. If you don’t see what you need on our website, feel free to contact us - we likely have a solution ready or can develop one for you.
📧 Email: ann@rigidhvac.com
📞 Phone: +86-579-8837-9768FAQs
DC Condensing Units
1. What makes RIGID’s DC Condensing Units different from traditional AC units?
2. Are the condensing units inverter-based?
3. Can the system operate off-grid or on battery power?
4. How compact are the condensing units?
5. Is there an integrated controller included?
6. What are common use cases for RIGID DC Condensing Units?
7. Can the system be used for water or glycol loop cooling?
8. Are the systems suitable for mobile environments like vehicles or drones?
9. Can it cool a closed enclosure or cabinet?
10. Do you offer dual-system or multi-zone cooling?
11. Is special tooling required for installation?
12. Can RIGID help customize the condensing unit for my project?
13. What refrigerants are used in the DC Condensing Units?
14. Is temperature control built into the unit?
15. Are the components compliant with environmental standards?
16. How do I control the compressor speed?
17. What is the expected lifetime of the compressor?
18. Does the unit require regular maintenance?
19. What happens if the system overheats or encounters a fault?
20. Can I monitor system status remotely?
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