Principle Introduction of 7.5kw CO2 heat pump air source water source residential hot water high temperature 90℃
The compressor sucks low-temperature and low-pressure gas carbon dioxide refrigerant from the evaporator, and compresses the carbon dioxide refrigerant into a high-temperature and high-pressure supercritical fluid through work. The high-temperature and high-pressure supercritical fluid enters the gas cooler to exchange heat with water, and is cooled in the gas cooler. The high-pressure fluid releases a lot of heat, and the water absorbs the heat released and the temperature continues to rise. After the high-pressure fluid is throttled and depressurized by the expansion valve, in the evaporator, the fan absorbs the heat in the surrounding air and evaporates into low-pressure gas, which is sucked into the compressor and compressed, so that it is repeatedly circulated to provide hot water.
Features of 7.5kw CO2 heat pump air source water source residential hot water high temperature 90℃
Natural environmental protection refrigerant: CO2 refrigerant, ODP is 0, GWP is 1, no pollution to the environment, non-toxic, non-flammable;
High water outlet temperature: the supply/return water temperature can reach 65°C/45°C, and the highest outlet water temperature can reach above 75°C, suitable for radiators;
Excellent low-temperature performance: at -35°C ambient temperature, heating is still normal;
High efficiency: The heating performance COP can reach 1.8 at an ambient temperature of -30°C;
Wide range of application: it can work normally in the ambient temperature range of -35℃~20℃, suitable for most cold regions in northern my country.
7.5kw CO2 heat pump air source water source residential hot water high temperature 90℃, besides the following specifications, also others availible, welcome to inquiry
| Monobloc CO2 Heat Pump Heating System | ||||
| Unit type | SJKRS-28 II/C | SJKRS-36II/C | SJKRS-55 II/C | |
| Specifications | 7.5HP | 10HP | 15HP | |
| Power supply | Three-phase five-wire380V/50Hz | |||
| Heating mode | Direct heat/cycle type | |||
| Standard working condition | Heating capacity( kw ) | 27.5 | 36.7 | 55.1 |
| Input Power(kW) | 6.1 | 8.2 | 13.7 | |
| COP | 4.5 | 4.5 | 4.5 | |
| Hot Water flow(m³/h) | 0.59 | 0.79 | 1.18 | |
| High temperature condition | Heating capacity kw ) | 23.9 | 28.5 | 51.5 |
| Input Power(kW) | 7.5 | 8.9 | 16.1 | |
| COP | 3.2 | 3.2 | 3.2 | |
| Hot Water flow(m³/h) | 0.27 | 0.33 | 0.59 | |
| Low temperature condition | Heating capacity( kw ) | 17.3 | 21.4 | 34.8 |
| Input Power(kW) | 6.2 | 7.6 | 12.4 | |
| COP | 2.8 | 2.8 | 2.8 | |
| Hot Water flow(m³/h) | 0.32 | 0.4 | 0.65 | |
| Components Information | Size of water pipe joint | DN20 | DN25 | |
| 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 temperature(℃) | 90℃ | |||
| Refrigerants | R744 (CO2 ) | |||
| Design pressure(MPa) | High side 15, low side 8 | |||
| Dimensions (L*W*H mm) | 1450x950x1450 | 1600x950x1500 | 1850x1150x1900 | |
| Noise (dB) | 56 | 59 | 62 | |
| Weight(kg) | 550 | 660 | 780 | |
| SCOPE of use | Feed water temperature(℃) | 5~ 40 | ||
| Feed water pressure | 0.05~ 0.4 | |||
| Effluent temperature(℃) | 55~ 90 | |||
| Maximum flow | 1.2 | 1.5 | 2.4 | |
| Ambient temperature(℃) | ’-20~43
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