DSH
The DSH range of hermetic scroll compressors from Danfoss is designed to deliver reliable, energy-efficient performance in both air conditioning and heating applications. Compatible with multiple low-GWP refrigerants (R410A, R454B, R452B), they feature IDV technology to optimize energy efficiency. Available in a wide variety of capacities and electrical configurations, DSH compressors combine durability, versatility, and compliance with major international certifications. They are offered in single, tandem, and trio configurations, providing flexible solutions to meet the demands of modern HVAC systems.
For certain models, particularly the large-frame DSH scrolls, factory-mounted Oil Level Switch (OLS) options are available. The OLS helps protect the compressor by monitoring oil levels in real time, enabling early detection of low-oil conditions and preventing potential damage, thus enhancing system reliability and reducing maintenance costs
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Note: It is not possible to install the OLS on standard DSH compressors, as this requires a new shell design for PED compliance. Therefore, when the OLS is required, it must be ordered pre‑mounted from the factory.
Features and benefits
- Intermediate Discharge Valves (IDVs) increase seasonal efficiency.
- Heat shield lowers the heat transfer between discharge and suction gas, reducing the sound level.
- Internal Non-Return Valve (INRV) prevents excessive leak rate from the high-pressure side.
- Lead-Free Polymer Bearings improve behavior under poor lubrication conditions.
- Patented motor cap for optimal motor cooling and higher resistance to liquid slugging
- Organ pipe masters oil circulation in manifold configuration.