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1. Environmentally friendly features：
Carbon dioxide (CO₂), as a natural working fluid, demonstrates negligible ozone depletion potential (ODP) and an ultralow global warming potential (GWP) of 1, in stark contrast to conventional refrigerants (e.g., R410A with a GWP of 2080). Its ecologically benign profile positions it as a sustainable choice for low-carbon refrigeration and heating applications, supporting global climate goals.
2. Efficient and energy-saving performance：
By employing transcritical thermodynamic cycles, CO₂ heat pumps attain a coefficient of performance (COP) exceeding 4.0 under standard operating conditions, with marginal efficiency decline at suboptimal temperatures. Compared to conventional heating systems, they achieve >50% energy savings, thereby elevating overall system efficiency.
3.High-Temperature Thermal Output Capability：
CO₂ heat pumps enable stable high-temperature hot water delivery (>90 °C), fulfilling industrial process requirements in sectors such as food processing and electroplating. Their heating systems accommodate radiators, underfloor heating, and fan coil units, facilitating seamless integration across multifarious application domains.
4. Adaptability to low temperature conditions：
Engineered for subzero climates, CO₂ heat pumps guarantee -45 °C startup reliability and uninterrupted high-temperature hot water supply at -35 °C ambient conditions. This renders them optimal for cold-region heating and hot water provision, ensuring sustained performance under extreme weather.
| Unit type | SJKRS-28 II/C | SJKRS-36II/C | SJKRS-55 II/C | SJKRS-73 I/C | SJKRS-106 IC | SJKRS-I60II /C | |
| Specifications | 7.5HP | 10HP | 15HP | 20HP | 30HP | 40HP | |
| Power supply | Three-phase five-vire380V/50Hz | ||||||
| Heating mode | Direct heat/cycle type | ||||||
| Standard working condition | Heating capacity(kw) | 27.5 | 36.7 | 55.1 | 72.8 | 10.6.5 | 155.1 |
| Input Power(kw) | 6.1 | 8.2 | 13.7 | 16.1 | 23.6 | 34.5 | |
| COP | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | |
| Hot Water flow(m³/h) | 0.59 | 0.79 | 1.18 | 1.56 | 2.29 | 3.33 | |
| High temperature condition | Heating capacity kw) | 23.9 | 28.5 | 51.5 | 59.5 | 89 | 13.1.5 |
| Input Power(kw) | 7.5 | 8.9 | 16.1 | 18.6 | 27.8 | 41.1 | |
| COP | 3.2 | 3.2 | 3.2 | 3.2 | 3.2 | 3.2 | |
| Hot Water flow(m³/h) | 0.27 | 0.33 | 0.59 | 0.68 | 1.02 | 1.51 | |
| Low temperature condition | Heating capacity(kw) | 17.3 | 21.4 | 34.8 | 41.5 | 62.2 | 94.5 |
| Input Power(kW) | 6.2 | 7.6 | 12.4 | 14.8 | 22.2 | 33.8 | |
| COP | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 | |
| Hot Water flow(m³/h) | 0.32 | 0.4 | 0.65 | 0.78 | 1.16 | 1.77 | |
| Component Information | Size of water pipe joint | DN20 | DN25 | DN32 | DN40 | ||
| Water heat exchanger | Plate or sleeve heat exchanger | ||||||
| Air Heat Exchanger | Aluminum Fin for copper tube | ||||||
| compressor type | Semi-closed reciprocating | ||||||
| Operation Panel | Color touch screen | ||||||
| Maximum outlet tenperature(℃) | 90℃ | ||||||
| Refrigerants | R744(C02) | ||||||
| Design pressure(MPa) | High side 15,low side 8 | ||||||
| Dimensions(length,width and height mm) | 1450x950x1450 | 1600x950x1500 | 1850x1150x1900 | 2050x1150x1950 | 2670x1410x2150 | 2290x2270x1980 | |
| Noise(dB) | 56 | 59 | 62 | 67 | 70 | 70 | |
| Weight(kg) | 550 | 660 | 780 | 860 | 1180 | 221360 | |
| SCOPE of use | Feed water temperature(℃) | 5~40 | |||||
| Feed vater pressure | 0.05~0.4 | ||||||
| Effluent temperature(℃) | 55~90 | ||||||
| Maximun flow | 1.2 | 1.5 | 2.4 | 3.2 | 4.9 | 6.5 | |
| Ambient temperature(℃) | -20~43 | ||||||
| Note: | 1)standard working conditions:ambient temperature DB 20°c/WB 15°C,using side initial water temperature 15°C, termination vater temperature 55°c; | ||||||
| 2)high temperature effluent:Ambient Temperature DB 20°c/WB 15°c,using side initial water temperature 15°C, termination water temperature 90°c; | |||||||
| 3)low temperature working condition:ambient temperature DB-10°C,using side initial water temperature 9°C, termination vater temperature 55°c. | |||||||
1.Industrial Waste Heat Recovery & Process Heating Solutions：
CO₂ heat pumps revolutionize industrial operations by recovering waste heat and delivering high-temperature thermal energy for sectors like petrochemicals, food processing, and pharmaceuticals. This advanced technology transforms low-grade waste heat into valuable steam or process heat, dramatically improving energy efficiency while advancing sustainability objectives through closed-loop energy recycling.
2.Smart Agriculture & Farming Efficiency：
Modern agriculture benefits from CO₂ heat pump technology through optimized greenhouse climate control and energy-efficient crop drying. By maintaining precise temperature and humidity levels, these systems boost crop growth rates, improve harvest quality, and deliver eco-friendly thermal solutions for sustainable agricultural production.
3.District Energy & Smart Grid Integration：
As key components of modern energy systems, CO₂ heat pumps seamlessly integrate with district heating networks and multi-energy hubs. Their intelligent energy management enables synergistic power-heat coordination and tiered energy utilization, significantly enhancing community heating performance while driving the decarbonization of urban energy infrastructure.
>> Product Operate Guide
After receiving the goods, the buyer will provide a instructional video.
Q1.Is frequent refrigerant replenishment necessary for CO₂ systems?
A: No. CO₂ operates in a hermetically sealed cycle, analogous to household refrigerators, enabling maintenance-free operation for over a decade.
Q2.Does the system fail in extremely cold winters?
A: Conventional heat pumps may experience performance degradation at -10 °C, whereas CO₂ heat pumps maintain normal operation down to -25 °C (as validated in Nordic regions and Canada). However, efficiency may marginally decline under prolonged extreme weather.
Q3.Does the system exhibit operational failures during severely cold winters？
A: Conventional heat pumps typically suffer performance deterioration at temperatures below -10 °C, whereas CO₂ heat pumps sustain uninterrupted functionality down to -25 °C, as demonstrated through field validation in Nordic countries and Canada. However, prolonged exposure to extreme weather may induce slight efficiency reductions.
