The circulating domestic hot water heat pump adopts a high-efficiency tube-in-shell water heat exchanger and is equipped with a built-in water pump, making installation simple and convenient. The unit can produce hot water with a maximum temperature of 60℃. It can be used in conjunction with existing geysers, replacing electric water heaters and saving more than 2/3 energy.
The instant domestic hot water heat pump adopts advanced variable flow rate control technology, which can maintain a constant water temperature in both cold and hot climates. Compared with the circulating type, the outlet water temperature of the instant heating type can directly reach the set temperature. The rapid defrosting technology enables the system to operate stably even in low-temperature and humid environments.
Water Heat Exchanger
1. High Efficiency Tube-in-Shell Heat Exchanger for Circulating Heat Pumps
High Working Pressure
The copper pipe features a thickness of 0.8–1.2 mm and is constructed without internal welding. With excellent pressure resistance, it remains completely leak-free under a 5 MPa pressure test.
Working Conditions
| Refrigerant Side | Water Side | |
| Max. Working Pressure | 5.2Mpa | 3.2Mpa |
| Working Temp. Range | -50〜150℃ | -50〜150℃ (above freezing point) |
The inner spiral surface of the copper tube enhances heat exchange efficiency while preventing lubricant accumulation.
The outer surface of the copper tube adopts a groove design, which increases the heat transfer area, which is 3.7 times that of a smooth surface.
2. High Efficiency Tube-in-Tube Heat Exchanger for Instant Heating Heat Pumps
Uses spiral tubes to increase heat transfer area and improve efficiency.
Specially designed to provide excellent efficiency, reliability, and reduce fouling.
Compressor
Our domestic hot water heat pumps adopt rotary compressors of well-known brands.
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