R744 CO2 Air Source Heat Pump Water Heater For Residential Heating
7.45kw Output Of 90 Degree With Dorin Compressor
Description of R744 CO2 Air Source Heat Pump Water Heater for
Residential Heating 7.45kw output of 90 degree with dorin
compressor
The compressor sucks low-temperature and low-pressure gaseous
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, it absorbs heat from the surrounding air
and evaporates into low-pressure gas through the action of the fan
in the evaporator, and is sucked into the compressor to be
compressed, and the cycle is repeated to produce hot water.
Features Natural environmental protection refrigerant: ODP is 0,
GWP is 1, no pollution to the environment, non-toxic, non-flammable
Excellent high-temperature heating performance: the highest water
output can reach above 90℃ Excellent low temperature performance:
at -20°C ambient temperature, 90°C high temperature hot water can
still be produced High efficiency: the heating performance COP can
reach 4.5, and when the hot water is produced at low temperature,
the COP is still above 2.0 Wide range of application: it can work
normally in the ambient temperature range of -20℃~43℃, suitable for
our production of domestic or industrial hot water
Performance of R744 CO2 Air Source Heat Pump Water Heater for
Residential Heating 7.45kw output of 90 degree with dorin
compressor
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
R744 CO2 Air Source Heat Pump Water Heater for Residential Heating
7.45kw output of 90 degree with dorin compressor
System Diagram Smart Control System
R744 CO2 Air Source Heat Pump Water Heater for Residential Heating
7.45kw output of 90 degree with dorin compressor
CO2 heat pump hot water unit specification list R744 CO2 Air Source Heat Pump Water Heater for Residential Heating
7.45kw output of 90 degree with dorin compressor |
| 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
