Products Center
  • Industrial Chiller
    Industrial Chiller
    H.Stars Industrial Energy Saving HVAC products including: Air Cooled Chiller, Water Cooled Chiller, Industrial Chiller, Multi-function Chiller, Hot Water Unit, Heat Recovery Unit, Heat Pump Unit, Condensing Unit, Low Temperature Chiller etc.
  • Commercial Cooling Central A/C
    Commercial Cooling Central A/C
    Commercial cooling central air conditioning unit apots H.Stars patented heat recovery unit to supply free hot water for clients. Centrigual chiller etc.
  • Heat Pump
    Heat Pump
    H.Stars Commercial Heat Pump with High quality ;Outlet Temperature Range: -35°C~85°C Heating capacity range: 8.7KW -1690 kW (for Modular Type);
  • Centrifugal Chiller
    Centrifugal Chiller
    Centrifugal chiller is so reliable, so high-performing, so future-proof that once it’s installed, you may never have to think about it again. Low maintenance cost. 2 Stages Centrifugal Chiller with cooling capacity range up to 2000RT .
  • Special None Standard Chiller
    Special None Standard Chiller
    Special and none standard chiller can be customized by H.Stars with high efficiency and quality . Welcome to inquiry and build your own chiller to save cost and time !
  • Heat Exchanger
    Heat Exchanger
    UAR custom-made Shell and Tube  heat exchangers , Titanium and Stainless heat exchangers ,  for energy conversion systems are designed for high-temperature and high-pressure environments. 
  • Air Handling Unit HVAC Equipment
    Air Handling Unit HVAC Equipment
    A full-line of air handling units from standard through custom offer design flexibility to balance performance and economy without compromising quality. Air handling units providing a fresh, healthy, and comfortable environment for buildings of all sizes and different applications.
  • Cooling Tower
    Cooling Tower
    Industrial cooling tower for water cooled chillers . Water cooling:When the fluid temperature is too high(surpassing setting temperature), the spray pump automatically spray the water on the pipe wall and form water film
  • Other Cooling Equipment
    Other Cooling Equipment
    H.Stars can supply ASME chiller with high quality standard . Or other special chiller unit are welcome to send us to specially design for you as we have our own R&D department.
About Us
About Us
H.Stars (Guangzhou) Refrigerating Equipment Group Ltd.
        H.Stars (Guangzhou) Refrigerating Equipment Group Ltd.,established in Economic & Technological Development Zone of Guangzhou in 1992, composed of 8 subsidiaries to provide one-stop solution to HVAC customers, specializing in R&D, production, design and installation. As the company grows, H.Stars group expands its business globally and have sold to 53 different countries. H'Stars group is awarded "New and High Technology Enterprise in Guangzhou" and has become the training base of many universities both in China and abroad via technology cooperation.         H.Stars group supplies an extensive line of Commercial and Industrial Energy Saving HVAC products including: Air Cooled Chiller, Water Cooled Chiller, Industrial Chiller, Multi-function Chiller, Hot Water Unit, Heat Recovery Unit, Heat Pump Unit, Condensing Unit, Low Temperature Chiller, Shell and Tube Heat Exchanger, Air Handling Unit, Fan Coil Unit, Cooling Tower, etc.          H.Stars group has been dedicated in quality and innovation and is technically strong in commercial and industrial application as a HVAC manufacturer. Apart from obtaining plenty of energy-saving product patents, H'Stars group has achieved CE certifications for Pressure Vessel and standard chillers, BR1, ASME, ISO9001:2000, ISO14001:2004 and other certifications.          A good reputation of H'Stars group has been built and we deliver a full HVAC service to customers worldwide. Our products are widely applied in industries for cooling of Laser generators, Welding electrodes, Cutting machines, Electric spark machines, Extrusion process, Hydraulic System, Electroplating, Ultrasonic Cleaning, Ion Plating film, Electronic facility, Electrical appliance components, Compressed Gas Dehumidification, Dairy and Beverage Cooling processing, Pharmaceutical and Biological products, Medical equipment, Glass Coating, Tempered Glass and Cultivation Sea Food.          H.Stars group will continue to develop energy saving and environmental friendly equipment to create "The Efficiency Planet" as our obligation. By focusing on customers' needs and wants in order to contribute more our potentials, from now on, H.Stars will hand in hand with you to be a shining star in the foreseeable future. 
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Culture
H.Stars uphold to "Build a Win-win Social Platform,Let's People Dance" core concept, and "Customer Change Because of US" professionalism. Through H.Stars reputation,integrity pragmatic attitude and robust development, also the independent intellectual property rights,to create a multi-product chain. Modern production base and industrial chain ,with highly integrated,specialized manufacturing enterprises. Our products including cooling equipment,HVAC equipment,industrial cooling equipment,air handling equipment and accept special custom design like explosion-proof,anti-corrosion,purification,ultra-low temperature,high temperature hot water ,cold heat recovery,recycling,and energy saving. We can tailor-make special units to integrate to our equipment ,water pumps and buffer tank together as a package unit to satisfy customer's requirement to maintain its unique competitiveness and create desired value to customers . Industrial cooling equipment is H.Stars primary business,with the sophisticated equipment and high quality service, "H.Stars" brand was established. With regards to recognition and support from majority of our customers,good brand reputation and technology leadership have been maintained in the air conditioning and cooling industry.
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Latest News
  • How does H.Stars Group produce a high quality air cooled chiller ?
    How does H.Stars Group produce a high quality air cooled chiller ?
    Since H.Stars Group has been established for more than 28 years so far, some of you might wonder how H.Stars produces a high quality air cooled chiller. Below is the detailed production process with strict quality control system and 100% testing before delivery. 1. Chiller Frame welding: clean the bracket and select the appropriate welding method according to the specifications of the welding materials and the technical requirements of the drawings. Chiller Bracket assembly: the bent compressor, filter and other brackets are assembled and welded according to the dimensions required by the drawing. 2.Refrigerant pipeline connection: For the vibration mode of the compressor, use a suitably shaped pipe to avoid resonance points near the power frequency; you can avoid resonance by adding weight. 3. Chiller Bracket assembly 4. Assembly of fin type condenser: the fin type condenser jointly produced by the subsidiary of H.Stars Group, according to customer requirements and engineer design. 5.Sheet metal: the electric control box shell on the H.Stars chiller is designed and manufactured independently, and the quality is under the control of the factory. 6.Layout of electrical components According to the electrical schematic diagram, the layout of the electrical components and the wire slot is reasonably discharged on the electrical base plate, and the hole position of the corresponding component and the installation hole position of the wire slot are marked with a pencil and drilled. The layout requires that the components should not be hindered by space during operation, and there should be no possibility of touching the charged body. 7.Electric control box and compressor wiring: The controller imports the latest version of the program according to the factory operation standards before installation, and sets and adjusts the corresponding parameters according to the model parameter comparison table and customer requirements. 8.Equipment testing station National standard testing station, the factory equipment must be tested, and only after passing the test can the goods be delivered to ensure reliable product quality. 9. Large equipment testing station Can test 800RT ~ 3000RT equipment, mainly detect centrifuge and large equipment, large equipment necessary facilities, it rare in the industry. 10.Pack insulation cotton Confirm customer requirements of the order chiller and the type of chiller, and clarify the position and standard of the chiller to be wrapped with thermal insulation cotton. The chiller pump and related waterway system parts are not wrapped with thermal insulation cotton before the test machine. It is necessary to check whether there is a leakage through the test machine process. The test machine can be wrapped with no thermal insulation leakage. 11.Outside spray The main parts of H.Stars chiller are evaporator and condenser. The products are produced independently. According to customer requirements, the appearance uses different colors ...
    2020-06-29
  • How to Maintain the chiller for a Cold Storage?
    How to Maintain the chiller for a Cold Storage?
    The chillers designed for cold storage, are adopting different types of compressors for different capacity cold storages.Cold storage compressors can be devided into screw compressors, positive displacement cold storage compressors, fixed displacement cold storage compressors and variable displacement cold storage compressors. Here mainly introduces how to maintain the chiller for a cold storage: 1. Startup and preparations Before starting, check whether the valves of the unit are in the normal starting state and whether the cooling water source is sufficient. After turning on the power, set the temperature as required. The refrigeration system of the cold store is generally automatically controlled, but the first time it is used, the cooling water pump should be turned on, and the compressors should be started one by one after normal operation. 2. Operation management Pay attention to the following points after the normal operation of the refrigeration system: Pay attention to the following points after the normal operation of the refrigeration system: 1). Listen to whether there is abnormal sound during the operation of the equipment; 2). See if the temperature in the warehouse drops; 3). Check whether the cooling and heating of the exhaust air is clear, and whether the cooling effect of the condenser is normal. 3. Ventilation and defrosting Fruits and vegetables will release some gas during storage, and accumulation will deteriorate the collection to a certain extent. Therefore, it is necessary to ventilate and ventilate frequently in the process of use, generally it should be carried out in the morning with lower temperature. In addition, after the cold storage is used for a period of time, the evaporator will form a layer of frost, which will affect the cooling effect if it is not removed in time. When defrosting, cover the storage in the library and clean the accumulated frost with a broom. Be careful not to knock hard. 1)For the evaporator of the air-cooled chiller: always check the defrosting situation. Whether the defrosting is timely and effective will affect the cooling effect and cause the liquid return of the cooling system. 2)Observe the operating state of the compressor frequently and check the exhaust temperature. When changing seasons, pay special attention to the operating status of the system and adjust the system's liquid supply and condensation temperature in a timely manner. 3)Observe the oil level and oil return condition of the compressor and the cleanliness of the oil frequently. If the oil is dirty or the oil level drops, it should be resolved in time to avoid poor lubrication. 4)Listen carefully to the sound of the compressor, cooling tower, water pump or condenser fan, and find any abnormalities in time.  Also check the vibration of the compressor, exhaust pipe. 5)Maintenance of the compressor: The initial cleanliness of the system is poor, and the refrigeration oil and filter drier should be replaced after 3...
    2020-05-25
  • H.Stars Group Shell and tube heat exchanger advantages-product technology development and selection
    H.Stars Group Shell and tube heat exchanger advantages-product technology development and selection
    Technical team The technology research and development team has a total of 10 people, including 8 with a bachelor degree, 2 with senior titles, and 6 with intermediate titles. Product Performance Calculating Software 1. Used in the refrigeration industry shell and tube heat exchanger uses the refrigeration industry WIELAND software to calculate the heat transfer performance of the heat exchanger. The WIELAND software includes R22, R134a, R404A, R407C, R410A, R502, R507, R717, R245fa and other media. : 2. The heat exchangers used in chemical, petroleum and other industries use the American heat transfer software HTRI to calculate the heat transfer performance of the heat exchangers. All heat exchangers are tested for heat transfer performance through a performance test platform to ensure the margin of heat exchanger use and meet customer needs. 3. The strength calculation of heat exchangers and pressure vessels of various tanks uses the pressure vessel industry SW6-2011v4.0 software to calculate its strength, and passes the inspection of Guangzhou Quality and Technical Supervision Bureau and leaves the factory. WIELAND software operation interface: HTRI software operation interface: SW6-2011v4.0 software operation interface: Heat exchanger performance test platform Product Production License GUANGZHOU UNITED A/C&R CO., LTD obtained a Class D pressure vessel manufacturing license in 1998, a Class D pressure vessel design license in 2008, and a Guangzhou Enterprise Research and Development Agency Certificate in 2017. Product Operation Process: The test relies on the H.Stars Group's independent test platform to test all types of heat exchangers and form reports for analysis and demonstration. The perfect operation process and more than 20 years of technical accumulation have accumulated rich design experience, keeping our products continuously leading.
    2020-03-06
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