Sonyo Compressor, Dalian
- Current brand
- Sonyo Compressor (Dalian)
- Location
- Dalian, Liaoning, China
- Product field
- Refrigeration and HVAC scroll compressors
A scroll manufacturer for temperature-control systems
Sonyo makes scroll compressors for air-conditioning, heat pumps, transport cooling and commercial refrigeration. These products compress refrigerant within a thermal system; they are not industrial compressed-air packages.
Matching an older nameplate?
The manufacturer traces its business to Dalian Sanyo in 1994 and a subsequent Panasonic Compressor (Dalian) period. It adopted the Sonyo name on 6 December 2022. Send the complete original model and system conditions for a replacement enquiry.
The Chinese legal entity is identified as a Dalian subsidiary in Bingshan’s 2025 interim disclosure. Use the current legal seller on the quotation; an old brand name does not establish that two models are interchangeable.
Two product paths, two different selection tasks
Start with the application and catalogue reference you need.
Commercial HVAC catalogue
B-series 3.5–7 HP scroll
The official lineup lists this family separately from the new-generation 8–10 HP B series. Identify the intended family and exact model before comparing refrigeration performance.
- Specify refrigerant, cooling duty and rating temperatures.
- Confirm electrical supply, control mode and permitted operating envelope.
- For replacement, provide the original model/nameplate and installation details.
Medium-temperature refrigeration
H-platform 50 HP scroll
Sonyo announced this larger refrigeration scroll on 22 September 2026. Use the published platform facts below to start a selection, then obtain the exact model's performance map.
- State the evaporating and condensing design points.
- Include cooling demand, ambient and cycling/defrost conditions.
- Agree approved refrigerant, protection and control requirements.
H-platform: what the announcement actually specifies
| Product class | 50 HP refrigeration scroll |
|---|---|
| Displacement | More than 800 cm³/revolution |
| Application | Medium-temperature refrigeration |
| Evaporating range | Reported down to −30°C |
The announced design includes vibration-damping scroll plates, silencing chambers and a discharge soundproof cover, plus multi-bypass and dual check valves. These are manufacturer-described design features; request model-specific evidence for your load, noise and liquid-return conditions.
Manufacturing context and approval documents
The company describes precision machining centres and test equipment for its scroll-compressor production. That general capability should be tied to the selected product and your acceptance requirements.
At model selection
Obtain the exact model, approved refrigerant, performance map and permitted operating envelope. Keep B and H platform references separate.
Before equipment integration
Agree mounting, connections, electrical/protection data, oil requirements and control interface. For a replacement, check these against the original system.
Before an order is released
Agree applicable model-level approvals, inspection records and installation documents, with the destination and responsible seller stated. Confirm delivery and service arrangements in the quotation.
Send refrigeration conditions, not just horsepower
The selection brief
- System: air-conditioning, heat pump, transport cooling or refrigeration; new design or replacement.
- Duty: required cooling capacity, refrigerant and evaporating/condensing temperatures.
- Operating range: ambient, speed/control mode, part-load and cycling or defrost pattern.
- Integration: voltage/frequency, mounting, connections and installation environment.
- Order scope: selected model, destination, documents, delivery and service responsibilities.
Questions from refrigeration buyers
Does 3.5–7 HP tell me the cooling capacity?
No. It identifies the B-series family class. Cooling capacity depends on the selected model, refrigerant and rating conditions. Compare manufacturer performance tables at matched conditions.
Can I replace a Panasonic Dalian unit by its horsepower alone?
Use the complete old model and nameplate, refrigerant, operating conditions and system connections. The manufacturer's name history helps identify the product, but does not establish replacement compatibility.
Is the H-platform already a complete selection sheet?
The launch provides platform features and several headline values. Request the exact model's capacity/power map, operating envelope, refrigerant approval and supply configuration before final selection.
Can I use refrigeration displacement as air-compressor FAD?
No. The H value is swept volume per revolution in a refrigerant application. It is not delivered compressed-air flow or an 8-bar factory air rating.