In recent years, Sanhua has continuously expanded its electronic product line, impressing many. However, Sanhua does not see itself as a traditional controller company; instead, it has gradually entered this field with a customer-driven approach. As a global service provider, Sanhua is committed to offering comprehensive and complete solutions, making its foray into the controller industry a natural choice.

At that time, Sanhua's electronic expansion valves were already well-recognized in the refrigeration industry, and pressure sensors had also been introduced; however, there was a lack of a cost-effective superheat controller. The development of this product took unexpectedly long, as achieving world class superheat control has always been a challenge in the industry, which explains why few companies worldwide have excelled in this area. Sanhua spent nearly a decade undergoing 6 iterations to reach today's world-class superheat control level. Consequently, the latest generation of electronic expansion valve controllers was named SEC611 (the digit "6" representing the sixth generation of algorithms).

once launched, this complete solution was widely welcomed in the market due to its excellent cost performance and stable superheat control. By this year, nearly 200,000 units have been installed worldwide.

During this period, Sanhua launched two derivative series: the Heavy Duty series, designed for low-temperature environments with an IP67 waterproof rating, allowing for direct installation in cold storage at -40 degrees. The controller integrates the electronic expansion valve coil, temperature, and pressure sensors, significantly enhancing installation efficiency. Additionally, the eDual series achieves dual control of electronic expansion valves by sharing pressure sensor signals, demonstrating greater economic efficiency.

With the success of the electronic expansion valve controller, customer expectations for Sanhua have risen. The market now demands not only control for electronic expansion valves but also controllers for the entire refrigeration system.

Sanhua's control family has begun to showcase its strong potential

1. The Revo series is Sanhua's first refrigeration system controller designed for refrigerated display cabinets, with multiple models derived for different market segments.

  - Revo Standard Refrigerated Controller: Primarily aimed at remote refrigerated display cabinets, this series can control electronic expansion valves, cabinet temperature, defrosting, evaporator fans, and anti-condensation.

  - Revo+ Series: Designed for waterloop semi pulg-in systems, primarily targeting variable frequency systems, it perfectly complements Sanhua's variable frequency drives and meets A2L/A3 refrigerant certification requirements.

  - Revo SE Thermostat: Aimed at self-contained devices using mechanical expansion valves or capillary tubes, it also offers options for driving variable frequency compressors. 

The combination of Revo+, Revo, and Revo SE provides customers with adaptive solutions for various equipment configurations.

2.Revo CC Rack Controller: Specifically designed for multiple parallel compressor racks, supporting up to 8 compressors and perfectly integrating with the Revo refrigerated controller to create a complete solution.

3. CO2 Condensing Unit Controller: Currently, in Europe, with increasingly stringent regulations on fluorinated gases and PFAS, the future refrigerants are gradually shifting towards CO2. However, the high investment costs of CO2 systems pose significant challenges for condensing units below 40KW when transitioning from traditional refrigerants. In response to this challenge, Sanhua introduced a CO2 condensing unit system solution, ensuring minimal cost variations through comprehensive system design, significantly lowering the market's conversion threshold. A key component of this solution is the condensing unit controller.

4. CoolMa Cold Storage System Controller: This product is an intelligent IoT controller aimed at integrated cold storage systems. It effectively manages outdoor condensing units while simultaneously controlling indoor evaporators, which is the origin of the term "integrated." CoolMa not only stabilizes the temperature of cold storage but also supports synchronized defrost control for up to two evaporators, achieving more efficient defrosting by pump down control. Additionally, the product replaces traditional pressure gauges and controls with pressure transmitters, providing advanced control features and multiple protections, ensuring smooth operation throughout the year, whether in winter or summer.

After completing the basic construction of the system control, Sanhua has set its sights on higher-level management and intelligent upgrades. With the development of Internet of Things (IoT) technology, Sanhua is actively exploring how to integrate its controllers with cloud platforms to achieve remote monitoring and data analysis. This not only enhances the management efficiency of the equipment but also provides customers with more flexible operational models.

5."WITNESS" Monitoring System 

The "WITNESS" system consists of two parts: hardware and software. The hardware component is a wireless 4G gateway, while the software component is the user interface. "WITNESS" empowers various roles within the cold chain industry, including food retail headquarters operation and maintenance departments, on-site management at cold storage facilities and stores, contractors, and manufacturers of refrigeration equipment. All these roles can manage their equipment on this platform, including timely handling of faults and efficient energy management. It connects various types of equipment and uploads data to the cloud for processing and analysis.

The core of Sanhua is still the product

In the market, comparisons have begun between Sanhua and numerous "IoT" companies, but in reality, they are not comparable. "IoT" companies primarily focus on network services, providing differentiated services through various charging models. In contrast, Sanhua's core remains its products, rooted in flow control components, followed by the controllers for these valves and the system, with "IoT" as last step. Sanhua has always focused on providing high-quality products for customers and has a deep understanding of refrigeration systems, creating a significant difference with "IoT" companies.

To meet the growing functional demands and rapid iterations, Sanhua has set up a strong electronic product team focused on high quality. Firstly, in the selection of electronic components, Sanhua maintains strict quality control, establishing a whitelist. Additionally, in circuit design, multiple protection are designed to ensure continuous operation even in sever conditions like lightning strikes and surges. While other companies are still debating whether to use conformal coatings, Sanhua has already adopted higher-grade UV adhesives, placing its controllers at the top level in the industry in terms of design lifespan. On the software side, Sanhua is customer-oriented and adopts a more flexible architecture to meet diverse needs, a value that many established controller brands cannot match.

Market feedback is increasingly positive

As Sanhua continues to expand its controller product line, market feedback has become increasingly positive. Many customers report that Sanhua's solutions not only enhance the stability of equipment operation but also reduce maintenance costs. Particularly in the fields of commercial cold chain and supermarket refrigeration, Sanhua's products, with their high cost-performance ratio and intelligent advantages, are gradually becoming popular choices in the market.

After a large supermarket introduced Sanhua's Revo series controllers, they monitored and managed the system's energy consumption in real time and discovered an overall energy reduction of 15%. Furthermore, the improved efficiency of cold chain management led to a significant decrease in food waste, saving costs for the supermarket.

The legend of Sanhua Electronics continues, and with its ongoing innovation and progress, the industry landscape will undoubtedly change due to Sanhua's involvement. After all, the Revo (Sanhua's first system controller) has been tasked with the mission of "Revolution" since its inception.

Looking to the future, Sanhua will continue to uphold its customer-orientated philosophy, focusing on product innovation and optimization. In the context of the global emphasis on energy conservation and emission reduction, Sanhua will increase its research and development efforts in environmentally friendly refrigerants and renewable energy, driving