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SH Series Scroll Compressor Tech Optimizes Industrial Cooling Efficiency

2026-10-25

Industrial chillers rely on compressor performance to determine overall system efficiency and reliability. The SH series scroll compressor platform, combined with high-quality expansion valves and compressors, is positioned for demanding industrial cooling applications. Its design emphasizes stable operation, broad frequency support, and serviceable technical parameters.

Core technology and quality commitments

Industrial refrigeration manufacturing requires a focus on quality across design, assembly, and testing. Development teams work to address complex cooling challenges through process design and precision engineering, while production lines increasingly adopt advanced equipment to ensure consistent performance under demanding operating conditions.

Chiller systems can integrate components such as Danfoss thermostatic expansion valves and scroll compressors from Sanyo and Daikin. These components are selected for their role in maintaining stable refrigeration cycles and supporting overall system reliability.

SH series scroll compressor performance overview

The SH series scroll compressor is designed for stable operation and efficient cooling capacity, making it suitable for industrial chiller applications. The series uses POE lubricating oil and supports 50/60 Hz operation across a range of industrial environments.

Model	Nominal cooling capacity (Btu/h)	Power input (kW)	COP (W/W)
SH090	76100	7.19	3.1
SH120	102200	9.46	3.27
SH140	118400	10.86	3.19
SH180	151800	13.73	3.21
SH300	256400	23.32	3.22
SH380	308700	28.19	3.21

Key technical parameters

For accurate selection, the following core technical data for models such as the SH140A4ALC should be considered.

Electrical specifications: Rated voltage 380–400 V / 460 V; maximum operating current (MOC) 28 A; RLA 21.4 A; LRA 147 A.
Physical characteristics: Net weight 68.88 kg; displacement 132.9 cm³; low-side volume 13.6 L.
Design details: Internal overload protector; fixed-speed control; threaded sight-glass mounting; Schrader-type low-pressure gauge port.

Operational considerations

Selection should account for the relationship between nominal cooling capacity, power input, and coefficient of performance. Installation environment, voltage supply, and maximum operating current also affect whether a given compressor model is appropriate for a specific chiller configuration.

Routine maintenance should follow the lubricant and electrical specifications provided for the compressor platform. Operators should verify that protection devices, connections, and heat-exchange performance remain within design limits during service.

Frequently Asked Questions

What parameters should be prioritized when selecting an SH series compressor?

Selection should consider nominal cooling capacity, power input, and COP (coefficient of performance). Operating voltage (380–400 V / 460 V), maximum operating current (MOC), and installation environment should also be verified for compatibility.

What are the lubricant requirements for the compressor unit?

The SH series uses POE (polyolester) oil as its lubricant. Maintenance should use the specified oil grade, such as reference oil 160SZ, to support lubrication and sealing performance of internal moving parts.

How can an overload condition be identified?

The series includes an internal overload protector. If operating current exceeds the rated range, the protector automatically cuts power. Electrical connections and heat dissipation should be checked regularly; frequent tripping requires inspection of refrigerant charge and condenser heat-transfer efficiency.

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