Water-Cooled Centrifugal Chiller

Chilled water system for commercial applications

The H.Stars 50STD centrifugal water-cooled chiller is designed to be energy-efficient, using a secondary centrifugal compressor and self-developed and produced high-efficiency spray evaporator with R134a refrigerant. This model boasts an impressive 6.3 EER and a cooling capacity range of 2000kW to 10000kW, with chilled water outlet temperature of 5°C to 20°C. Its four available voltage systems are 380V, 6kV, 6.6kV and 10kV, with tailor-made, non-standard units achievable upon request. H.Stars also produce high-voltage, seawater and other power supply models upon request.

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• This two-stage centrifugal compressor has the advantage of being unlikely to surge, as it is powered by a system economizer to help with interstage supplementation. This technology boosts cooling capacity by at least 10%.
• Evaluate the potential surge area accurately and adjust the rotate speed and IGV quickly to prevent instability and make operation more safe.
• By incorporating a gear speed increase drive, the impeller volume is reduced while the motor starting torque is reduced, minimizing the downtime.
• The motor and compressor are seamlessly connected, allowing operation to be quiet, while avoiding any risk of spillage.
• The motor's cooling system utilizes liquid refrigerant, significantly reducing the operating temperature while efficiently increasing efficiency.
• High-strength ball bearing or roller bearings for the compressor, preventing unexpected shutdown.
• Self-designed spray heat exchanger technology capitalizing on the enhanced efficiency of production. Precise liquid level control guarantees that the evaporator is at an optimal state of heat exchange at all times.
• The condenser is equipped with droplet separation technology to guarantee a high level of efficiency and complete heat exchange across the condensing heat exchanger tube. This results in a impressive COP value of 6.3.
• Our patented heat recovery technology ensures the heat generated during the refrigeration process is captured and recycled. Get chilled water and hot water at no cost!
• A perfect oil circuit system, with its independent oil return system, guarantees that oil is promptly returned to the injection pump regardless of the operating conditions.
• This unit features a built-in oil cooler, cooled by a safe and dependable refrigerant, guaranteeing reliability.
• The oil pump is designed and placed within the compressor oil sump, removing any possibility of the pump leaking.
• The latest microcomputer-controlled touch interface makes monitoring operating data effortless and quick, eliminating the need for constant oversight. Constant feedback on maintenance can be obtained in real-time, which helps ensure the smooth operation of the unit. Additionally, it can be linked to the user's centralized control system, giving the user a comprehensive understanding of the machine's conditions at any time.
• This specially-engineered multi-stage throttling device features an self-adaptive capability, enabling it to perfect adjust the refrigerant supply when the load or conditions shift - free from lag, ensuring optimum efficiency of the unit in any situation.

Water-Cooled Centrifugal Chiller

Refrigerant: R134a
Power supply: 380V-3N-50Hz

• Variable frequency centrifuge unit

  The variable frequency centrifuge unit is a modern unit which incorporates both a frequency converter and existing unit operations in order to achieve frequency conversion. With this upgrade, its energy efficiency is drastically improved at partial loads, making it a truly transformative double efficient unit capable of reaching full load efficiency (COP) as well as a intergrated part-load value (IPLV).

• Heat recovery

  The chiller's condensing heat, typically released into the atmosphere via a cooling tower, can now be effectively harnessed. With the heat recovery technology, heat absorbed during cooling can be transferred to the building, providing hot water where needed. During the cooling season, the heat recovery unit can provide free hot water above 50°C, utilizing up to 30-100% of the cooling capacity for heat recovery.

• Heat exchanger tubes

• Cloud service (remote control)

  It offers the ability to manage operations without the need to be on-site, providing a convenient and efficient way to complete tasks.

Model	A	B	C	D	E
50STD-PM600WS4	4100	2400	2500	3100	1800
50STD-PM700WS4	4100	2400	2500	3100	1800
50STD-PM800WS4	4600	2550	2900	3400	2000
50STD-PM900WS4	4600	2550	2900	3400	2000
50STD-PM1000WS4	4600	2550	2900	3400	2000
50STD-PM1200WS4	4800	2800	2950	3400	2300
50STD-PM1300WS4	4800	2800	2950	3400	2300
50STD-PM1400WS4	4800	2800	2950	3400	2300
50STD-PM1500WS4	5000	2800	2950	6800	2300
50STD-FM600WHS4	4200	2500	2500	3200	1800
50STD-FM700WHS4	4350	2550	2600	3250	1800
50STD-FM800WHS4	4500	2600	2800	3300	1900
50STD-FM900WHS4	4600	2650	2900	3400	2000
50STD-FM1000WHS4	4800	2700	2900	3400	2100
50STD-FM1100WHS4	4950	1750	2950	3400	2200
50STD-FM1200WHS4	5500	2800	2950	3400	2300

Model	A	B	C	D	E
50STD-PM1600WS4	6000	2800	2950	6800	2300
50STD-PM1700WS4	6000	2800	2950	6800	2300
50STD-PM1800WS4	7000	2800	2950	6800	2300
50STD-PM1900WS4	8000	2800	2950	6800	2300
50STD-PM2000WS4	9000	2800	2950	6800	2300
50STD-PM2000WS4	9500	2800	2950	6800	2300
50STD-PM2100WS4	9600	2800	2950	6800	2300
50STD-PM2200WS4	9700	2800	2950	6800	2300
50STD-PM2300WS4	9700	2800	2950	6800	2300
50STD-PM2400WS4	9700	2800	2950	6800	2300
50STD-PM2500WS4	9750	2800	2950	6800	2300
50STD-PM2600WS4	9800	2800	2950	6800	2300
50STD-PM2700WS4	9900	2800	2950	6800	2300
50STD-PM2800WS4	10000	2800	2950	6800	2300
50STD-PM2900WS4	10000	2800	2950	6800	2300
50STD-PM3000WS4	10000	2800	2950	6800	2300
50STD-FM1800WHS4	9000	2800	2950	6800	2300