R744 Air Source Heat Pump
R744 air source heat pump can be used for domestic and commercial
heating, cooling and domestic hot water (DHW) production. Compared with
traditional air source heat pumps, R744 heat pump uses carbon dioxide CO2 as a
refrigerant.
R744 carbon dioxide refrigerant:
The model name R744 is a natural refrigerant CO 2. Carbon dioxide (CO 2)
is almost an ideal refrigerant for ecological and safety related aspects,
because its ozone depletion potential (ODP) is zero. In addition, its
non-toxic, non-flammable and chemical inertness make it unnecessary to recycle
and dispose of.
The traditional air source heat pump is used for defrosting at -7°C, and
the hot water at -15°C has very low effect, and the heat loss is about 70%. The CO2 heat pump produces a water flow temperature of 90 °C when the outdoor
temperature is as low as -25 °C and the hot water COP is as high
as 3.88.
Heat pumps can absorb and move heat from the surroundings without
generating heat, so this type of heat pump is very efficient, which saves
energy and reduces operating costs.
The CO2 heat pump is an ideal choice for hot water systems in
multi-family homes, gyms, industries, hotels, education and healthcare.
R744 Air Source Heat Pump Features:
1). The reliability and outstanding performance of the world-renowned scroll compressor
2). Natural CO2 (R744, carbon dioxide) refrigerant. Its ODP is 0, GWP is 1, and it is non-polluting, non-toxic and non-flammable to the environment
3). Intelligent control: microprocessor digital controller with liquid crystal display
4). Adjustable water temperature: 25℃-90℃. There is no potential risk of contaminating drinking water
5). Can produce high temperature hot water at -20℃ outdoors
6). Blue hydrophilic aluminum fins, anti-corrosion, durable, low maintenance
7). Internally threaded copper tube, higher efficiency
8). The four-way valve ensures reliable defrosting function
9). Alco or Danfoss thermal expansion valve can more accurately control the pressure and temperature to ensure anti-fatigue and extend the service life.
10) Can be used for floor heating, fan coils, water heaters and modern radiators
Warranty:
1). Passed CE and RoHS certification
2). Service life is about 20 years
3). 2 years warranty, buy with confidence
Heat Pump Components:
1. Silver welding
Silver welding technology makes the unit system more reliable; it is likely to avoid refrigerant leakage
2. Intelligent control
The unit adopts an intelligent control system: microprocessor digital controller, liquid crystal display
3. Shell and tube
Heat Exchanger High-efficiency shell-and-tube water heat exchanger, the highest working water pressure can reach 3.2Mpa
3. Reliability of Alco thermal expansion valve
4. Efficient and environmentally friendly refrigerant, does not destroy the ozone layer
5. Low noise fan
Axial fan is adopted, with large air volume and low operating noise
6. Air pressure drive water flow control valve
The water flow is controlled by the pressure of the refrigerant to ensure that the hot water supply can be adjusted at a constant temperature
R744 Air Source Heat Pump Specifications:
Power range: 8kW, 10kW, 12kW, 15kW, 17kW, 20kW, 25kW, 28kW, 30kW, 35kW, 40kW, 45kW, 55kW, 60kW, 90kW, 100kW, 115kW, etc.
Model |
LM-28 |
Specification |
7.5HP |
Power Supply |
380V/50Hz |
Heating Method |
Direct heating /circulating |
Standard Heating Capacity |
27.5kW |
Standard Input Power |
6.1kW |
Standard COP |
4.5 |
Standard Hot water flow rate |
0.59m3/h |
High Temperature heating capacity |
131.5kW |
High Temperature input power |
7.6kW |
High Temperature COP |
3.14 |
High Temperature hot water flow |
0.27m3/h |
Low Temperature heating capacity |
94.5kW |
Low Temperature input power |
6.3kW |
Low Temperature COP |
2.76 |
Low Temperature Hot water flow rate |
0.32m3/h |
Water pipe connection size |
DN25 |
Water heat exchanger |
Plate or tube heat exchanger |
Air heat exchanger |
Copper tube aluminum fin |
Compressor type |
Semi-closed reciprocating |
Operation panel |
Color touch screen |
Highest water outlet temperature |
90℃ |
Refrigerant |
R744 (CO2) |
Design pressure |
High pressure side 15MPa Low pressure side 8MPa |
Length, width height |
1450x950 x1450mm |
Noise |
56dB |
Weight |
550kg |
Water supply temperature |
5 ℃~ 40℃ |
Water supply pressure |
0.05MPa ~ 0.4MPa |
Outlet water temperature |
55℃ ~ 90℃ |
Maximum flow |
1.2m3/h |
Ambient temperature |
-30℃~ 43℃ |