Description of DORIN INVERTER CO2(R744) Heat Pump Systems Carbon dioxide high temperature heat pump air source and water source
The carbon dioxide transcritical heat pump unit has a significant energy saving effect in waste heat recovery. Through the excellent characteristics of carbon dioxide supercritical, only a small amount of electricity is required to produce high-temperature hot water. In the cold area of 100 to 20 degrees in the north, the waste heat of the air can be absorbed. In the supercritical area of carbon dioxide, the gas heat exchanger can still efficiently produce high-temperature hot water above 60 °C.
CO2 Heat Pump Working Principle
The working principle of CO2Heat Pump is that the refrigerant absorbs the heat in the air(or water), compressed by the compressor to become a high-temperature and high-pressure gas to be discharged. The high-temperature and high-pressure refrigerant gas is cooled by the gas cooler and transfers the heat to the water then realize the heating function.
Working Temperature of Carbon Dioxide Heat Pump:-43-43℃Outlet Water Temperature:35-100℃COP:3.2-7.0
Performance of Zew Zealand 8kw Residential CO2 Heat Pump System for Combined Space Heating and Hot Water Heating
Ultra-low temperature working conditions: ambient temperature DB-10-C, water inlet temperature 9°C;
Defrost condition: ambient temperature DB2°C/WB1°C, water inlet temperature 9°C; low temperature condition: ambient temperature DB7°C/WB6°C, water inlet temperature 9°C; standard working condition: ambient temperature DB20°C /WB15°C, inlet water temperature 15°C; high temperature working condition: ambient temperature DB38°C/WB23°C, inlet water temperature 29°C.
Installation Notes:
1. The spacing around the installation must not be less than Im;
2. The pipelines other than the heat pump should be protected from frost and heating elements can be installed;
3. Heat insulation and protection measures should be taken for the pipelines for hot water circulation to prevent heat loss.
| HP | A/mm | B/mm | C/mm |
| 7.5 | 1450 | 950 | 1450 |
| 10 | 1600 | 950 | 1500 |
| 15 | 1850 | 1150 | 1900 |
| 20 | 2050 | 1150 | 1950 |
| 30 | 2670 | 1410 | 2150 |
| 40 | 2290 | 2270 | 1980 |
Application Diagram Pressure-bearing water tank
Zew Zealand 8kw Residential CO2 Heat Pump System for Combined Space Heating and Hot Water Heating
System Diagram Smart Control System
Zew Zealand 8kw Residential CO2 Heat Pump System for Combined Space Heating and Hot Water Heating
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CO2 heat pump hot water unit specification list Zew Zealand 8kw Residential CO2 Heat Pump System for Combined Space Heating and Hot Water Heating |
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| Model | SJKRS-05I/C | SJKRS-28II/C | SJKRS-36II/C | SJKRS-55II/C | SJKRS-73II/C | SJKRS-106II/C | SJKRS-160II/C | |
| Specification | 2HP | 7.5HP | 10HP | 15HP | 20HP | 30HP | 45HP | |
| Power supply | 230V/1N/50Hz | 380V/3N/50Hz | ||||||
| Heating Method | Direct heating / circulating | |||||||
| Nominal working condition | ( kw)heating capacity | 7.45 | 28.1 | 37.7 | 56.1 | 74.1 | 108.6 | 158.7 |
| ( kw) Input power |
1.61 | 6.1 | 8.2 | 12.2 | 16.1 | 23.6 | 34.5 | |
| COP | 4.6 | 4.6 | 4.6 | 4.6 | 4.6 | 4.6 | 4.6 | |
| ( m³/h) Heating water flow |
0.11 | 0.6 | 0.81 | 1.21 | 1.62 | 2.33 | 3.41 | |
| High temperature working conditions | (kw)heating capacity | 5.58 | 23.9 | 28.5 | 51.5 | 59.5 | 89 | 131.5 |
| ( kw)Input power | 1.73 | 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 | 3.2 | |
| ( m³/h) Heating water flow |
0.07 | 0.27 | 0.33 | 0.59 | 0.68 | 1.02 | 1.51 | |
| Low temperature working conditions | (kw)heating capacity | 4.3 | 15.7 | 19.1 | 31.8 | 38.9 | 59.3 | 90 |
| ( kw)Input power | 1.59 | 5.8 | 7.1 | 11.8 | 14.4 | 21.9 | 33.3 | |
| COP | 2.7 | 2.7 | 2.7 | 2.7 | 2.7 | 2.7 | 2.7 | |
| (m³/h) Heating water flow |
0.07 | 0.28 | 0.34 | 0.56 | 0.68 | 1.04 | 1.52 | |
| Parts information | Water pipe interface size | DN15 | DN20 | DN25 | DN32 | |||
| Water heat exchanger | Plate or tube heat exchanger | |||||||
| Air heat exchanger | Copper tube aluminum fins | |||||||
| Compressor type | Double rotary | Semi-closed reciprocating type | ||||||
| Operation panel | Color touch screen | |||||||
| Maximum outlet temperature | 85℃ | 90℃ | ||||||
| Refrigerant | R744(CO2) | |||||||
| Design pressur(MPa) | 15MPa(HP)/8MPa(LP) | |||||||
| Dimensions (L,W,H mm) | 750*390*1245 | 1450*950*1450 | 1600*950*1500 | 1850*1150*1900 | 2050*1150*1950 | 2670*1410*2150 | 2070x2150x2245 | |
| ( dB) Noise | ≤44 | ≤56 | ≤59 | ≤62 | ≤67 | ≤70 | ≤70 | |
| ( kg) Weight | 83 | 550 | 660 | 780 | 860 | 1180 | 1360 | |
| Feedwatertemperature(℃) | 5~40 | |||||||
| ( Feed water pressure MPa) | 0.05~0.4 | |||||||
| Water Outlet temperature (℃) | 55~85 | 55~90 | ||||||
| Maximum flow | 0.24 | 1.2 | 1.5 | 2.4 | 3.2 | 4.9 | 6.5 | |
| Ambient temperature (℃) | -25~43 | |||||||
System schematic diagram
Leomon ) Energy Saving Technology Co, Ltd. focus on design and produce the CO, Heat Pumps, Steam Engine Heat Pumps and Closed Dryers, also provide various energy solutions.
We has a complete industrial chain of CO, Heat Pump Series, Steam Engine Heat Pump, and Closed Drver Series. The products include CO,Water Heating Heat Pump, CO, Heating Heat Pump, CO, Heat Air Blower,UItra-low Temperature CO, Cascade Heat Pump, and CO, Water Source Heat Pump, CO, Domestic Hot Water+Heating+Solar 3-in-1 Heat Pump, CO, Swimming Pool Heat Pump, Multi-functional CO, Swimming Pool Constant Temperature and Humidity Heat Pump, High Temperature Steam Engine Heat Pump (120℃), Closed Dryer and so on. Among them, the export volume for CO, Heat Pumps is on the top. Carbonated Water Source Heat Pumps are widely used in the south. Our 3-in-1 Heat Pump for Domestic Hot Water+Heating+Solar Energy is warmly welcome in the market especially in European Market. What's more, the High-temperature Steam Engine Heat Pump (120°C) has become a perfect substitute for the boiler.
