● Country: Thailand, available since 1994.  

● Features: Although manufactured in Thailand, these chillers use reliable Japanese and American brand components, focusing on basic performance with lower price. The standard models are fixed-speed type only, with applications ranging from industrial process chillers to extra-large models for air conditioning & centralized use.  

● Product Overview: Cooling capacity of 1 to 1800 kW, from one-package to screw type (refrigerator only), fixed-speed type (Large models feature a step-type energy-saving function through control of the number of compressors), air-cooled & water-cooled, equipped with rotary or screw compressors, and power specifications: 1PH220V, 3PH200V.  

👍 Recommended for: Those looking for cost-effective models with basic performance or those seeking larger models.

● Country: Nagano Prefecture in Japan and is a long-established brand founded in 1946. It specializes in pneumatic, temperature control, and vacuum systems, with product and service offerings in East Asia, Southeast Asia, and North America.  

● Features: Durability and high functionality. Highly recommended for its energy-saving performance. Its primary application is in industrial process chillers, with the one-package type being the most common. Some models are also made in Thailand.  (Reference page: STRUCTURE OF PACKAGED CHILLER)

● Product Overview: Cooling capacity of 1 to 96 kW, package type (some models without a tank), high energy-saving performance, air-cooled and water-cooled, equipped with rotary or scroll type compressors, high-performance pumps, and power specifications (depending on the model): 1PH100V, 1PH220V, 3PH200V.  

👍 Recommended for: Those seeking high energy-saving performance despite a higher price compared to other brands, and those requiring precise water temperature control. Suitable for installation in smaller spaces.

Note: Transformer (380V⇒200V) is required for use in Thailand. (Excludes some small and Thai-made models)

●Country: An electrical equipment manufacturer in the Hitachi Group headquartered in Minato, Tokyo.
●Features: Known for precise temperature control, high efficiency, and energy-saving designs, these products are used in a wide range of fields, including building and factory HVAC, industrial applications, and medical facilities. Proprietary technologies include high-performance compressors and advanced capacity control. Manufactured in China.
●Product Overview: Cooling capacity from 100 to 1800 kW, available in water-cooled and air-cooled screw types, water-cooled turbo (centrifugal) types, and air-cooled modular types. Power specifications: 3PH380V. Installation requires a separate tank and pump.

👍Recommended for: Ideal for those looking for large chillers for building and factory air conditioning or central cooling sources. The modular type is recommended for future expansion needs.