Precision Control. Stable Refrigeration Performance.
Our refrigerant level control switch is a high-precision control device designed to ensure proper refrigerant level management—essential for stable refrigeration system operation. Built on decades of experience in designing, installing, and operating refrigeration facilities, it delivers the reliability, durability, and ease of use demanded in real-world applications.
Fluctuations in refrigerant level can lead to reduced efficiency, abnormal operation, or even equipment damage. Our switch accurately detects refrigerant conditions and automatically maintains the optimal liquid level, maximizing system performance and ensuring consistent cooling capacity.
Designed with compatibility to Kumagai Manufacturing’s COM-F, it enables smooth replacement in existing systems without changing piping flanges or requiring high-pressure gas modification applications. This allows easy upgrades without major downtime, minimizing renewal costs.
The switch supports both ammonia (NH₃) and fluorocarbon refrigerant systems (HFC, HCFC, etc.), providing stable detection performance across a wide range of refrigeration environments—including food processing plants, cold storage facilities, and ice production plants.

● Detects and transmits signals for rising and falling refrigerant levels at both low and high pressure.
● Compatible with ammonia and fluorocarbon refrigerants.
● Installation compatible with the previous HLS-f model and Kumagai Seisakusho COM-F, requiring no changes to piping or flanges.