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Danfoss Compressor SY240 SY300 SY380 for Air Conditioning Compressor R22

Danfoss Compressor SY240 SY300 SY380 for Air Conditioning Compressor R22

Name: Danfoss Compressor SY240 SY300 SY380 for Air Conditioning Compressor R22
Brand: DANFOSS
Rating: 5.0 (36 reviews)

The ultimate flagship of the Danfoss S-Series, engineered for large rooftop and water chiller applications. As the most powerful and versatile scroll compressor line, it delivers unmatched performance in commercial water chillers, modular units, heat pumps, and heavy-duty industrial cooling.

Model:
SY240 SY300 SY380
Brand:
DANFOSS

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Product Description

I. Series Positioning

The SY Series is the high-power product line within the Danfoss S-Series scroll compressors, specifically optimized for large rooftop units and water chiller applications. Covering a 20–30 HP power range with a cooling capacity from 61.2 kW to 94.5 kW. Based on R22 refrigerant while remaining compatible with R407C, R134a, R513A, and more, the SY Series stands as the flagship line with the highest power and widest application range in the Danfoss scroll compressor family. It is widely used in large commercial buildings for water chillers, modular units, rooftop units, heat pump systems, and industrial cooling.

Feature Dimension	Description
Power Range	20 HP – 30 HP
Refrigerant	R22 / R407C / R134a / R513A
Lubricant	Mineral oil / POE ester oil (depending on refrigerant)
Application Condition	A/C & Heating, Large Commercial & Industrial Grade
Core Positioning	High-power flagship, multi-refrigerant compatibility

II. Full Series Parameter Comparison Table

50Hz operating condition.

No.	Model	Nominal HP	Cooling Capacity (W)	Cooling Capacity (Btu/h)	COP	Compatible Refrigerants
1	SY240	20	61,200	208,700	3.36	R22/R407C/R134a/R513A
2	SY300	25	78,200	267,000	3.43	R22/R407C/R134a/R513A
3	SY380	30	94,500	322,700	3.46	R22/R407C/R134a/R513A

III. Detailed Explanation

Feature – Technical Characteristics

The SY Series adopts a hermetic scroll structure with no reciprocating motion mechanisms inside, featuring a simple structure, small size, light weight, and fewer parts. The compressor is equipped with high/low-pressure protection, a relief valve, and motor overload protection. A built-in electrical module provides reverse rotation protection to ensure operational safety. The intermediate bearing cover design achieves high energy efficiency and low noise levels. The "contact-free and wear-free" scroll design reduces friction, while the oil sump heater blanket provides thermal insulation to further improve energy efficiency and reduce noise. The SY300 boasts a displacement of 437.5 cm³/rev, an oil charge of 8 liters, a locked rotor current of 270A, and a maximum continuous current of 69A.

Advantage – Technical Advantages

The SY Series achieves a high COP of 3.36–3.46, with the SY380 reaching 3.46, demonstrating outstanding energy efficiency among high-power scroll compressors. The SY Series supports multiple refrigerants including R22, R407C, R134a, and R513A. When using R22, the SY300 delivers a cooling capacity of 78,200 W; when using R513A, its nominal cooling capacity is 47,497 W, showcasing its broad operating condition adaptability. Designed for a lifespan of up to 15 years, the SY Series requires minimal maintenance, features brazed connections (suction pipe: 1-5/8 inches, discharge pipe: 1-1/8 inches), and carries a protection class of IP54.

Benefit – User Benefits

For ultra-large cooling demand scenarios such as large commercial complexes, data center cooling, and district cooling: With a robust cooling capacity of up to 94.5 kW and a high energy efficiency ratio of 3.46, the SY Series provides ample cooling reserves and excellent operational economy.
For heat pump applications: The SY Series' compatibility with multiple refrigerants adapts to different environmental regulations.
For OEMs and contractors: The high power and reliability of the SY Series mean fewer compressors are needed, resulting in simpler system design and lower maintenance costs.

IV. Application Scenarios

Application Scenario	Recommended Models	HP Range	Adaptation Reason
Water chillers for large commercial buildings	SY240–SY300	20–25	High cooling capacity, COP 3.36–3.43
Modular units / Rooftop units	SY240–SY300	20–25	Compact structure, flexible installation
Water-source/Geothermal heat pumps / Heat pump water heaters	SY240–SY380	20–30	Multi-refrigerant compatibility, adapts to different working fluids
Precision AC / Industrial cooling	SY300–SY380	25–30	High reliability, long-life design
Cold chain / Cold storage / Ice machines	SY240–SY300	20–25	Wide operating condition adaptability

PACKING DELIVERING包装与交付

The SY Series is widely used in water chillers, modular units, rooftop units, air-cooled cabinet units, water-source heat pumps, heat pump water heaters, precision air conditioning, industrial cooling, supermarket refrigeration, cold storage, milk cooling tanks, ice machines, and more.

Whether you are a contractor, an OEM, or a service technician, if you have compressor needs, please contact us anytime. We look forward to cooperating with you!