In a constantly evolving business environment, the light commercial refrigeration sector faces unprecedented challenges and opportunities. With the growing global focus on energy efficiency and environmental sustainability, high-efficiency refrigeration solutions have become a key driver in this segment.

The main advantage of efficient cooling solutions is the Reduced energy consumption . Adopting advanced refrigeration technologies and equipment significantly reduces operating costs and energy consumption. These savings translate into significant long-term economic benefits, generating direct returns for companies.

Furthermore, these solutions contribute to the reducing environmental impact , helping companies meet their sustainable development goals and respond to global environmental protection demands. As governments impose increasingly stringent energy efficiency regulations, high-efficiency solutions enable companies to easily adapt to the new standards and avoid legal or financial risks due to non-compliance.

THE Qingdao Hiron Commercial Cold Chain Co., Ltd. is a manufacturer specializing in commercial cold chain equipment, providing solutions for refrigerated beverages, frozen foods, beer, dairy products, supermarkets, convenience stores, among others.

Its portfolio includes over 100 models of refrigerated and frozen display cases, positioning the company as a leader in the professional commercial refrigeration segment. These manufacturers typically develop several lines—standard and premium—requiring distinct controls to differentiate themselves in the market.

The main benefits that an electronic controller with VCC serial mode can bring to the solution are:

• High efficiency and energy saving : The controller can maximize the performance of variable capacity compressors as it continuously determines the compressor operating speed based on the actual operating temperature.

• Optimized maintenance management : The controller allows the VCC compressor to send operational data. The integrated BMS port connects to the IoT platform, facilitating service and maintenance management.

• Food preservation and HACCP : PID control helps minimize temperature fluctuations. The integrated HACCP function prevents food damage and records in the event of a power outage.

• Excellent performance in terms of low noise and vibrations : thanks to soft start and advanced PID logic, the controller reduces compressor vibrations at start-up and in low load conditions, giving the cabinet better performance in terms of noise reduction.

There was a 13% reduction when comparing compressor ON/OFF to VCC in Drop-In mode , as well as an additional 14% savings if the VCC compressor speed is managed directly by the electronic thermostat in serial mode .
The overall energy savings achieved with VCC management in serial mode , compared to a fixed-speed compressor, is 25%. This savings, when applied to a chest freezer unit—which are typically large, low-temperature units with high energy consumption—can translate into significant savings on your energy bill.
Additionally, noise was reduced by 2 dB and temperature fluctuations inside the cabinet were less than 2°C, meaning the set point can be maintained while saving energy and preserving the same food quality.

The results of this case study confirm the growing importance of advanced control strategies in the light commercial refrigeration sector. As demonstrated, the use of an electronic thermostat with VCC serial speed control offers a reliable way to optimize compressor performance , enabling significant energy savings and improving temperature stability , thus providing better food preservation quality. These capabilities are especially valuable in a context where energy regulations are becoming more stringent and environmental concerns are shaping purchasing decisions.
In an evolving market driven by efficiency, sustainability, and digitalization, solutions that can intelligently manage variable-capacity compressors represent a concrete step forward. This case illustrates how adopting these technologies can achieve optimal energy savings from a variable-speed compressor, helping manufacturers comply with new regulations, reduce operating costs for the end user, and improve long-term sustainability outcomes.