The features of all kinds of air source heat pump water heaters







Detian air source heat pump water heater





All kinds of air source heat pump water heaters available now.

1. Instant (one-time heating)

A, that is the definition of instant air source heat pump water heater:
      The so-called direct thermal air source heat pump water heater, water heated by heat pump just one-time can reach setting hot water temperature; the technology is different from the conventional one which need to circulate in the heat pump more times in order to reach the setting temperature.

B, direct thermal heat pump water heater characteristics:
1), the heated water temperature will be same as setting just one time heated. It is comfort and reliable to users. The water temperature will not change during your shower time.

2), long longevity, high efficiency, long life; direct thermal heat pump water heater , heating the cold water instead of warm water; cold water can absorb more heat generated in the heat pump operation, heat pump get sufficient cooling that will not cause the core components of the compressor harsh operating, lead to affect the operating efficiency and longevity, less electrical energy consumed by compressor of air source heat pump water heater, which has overcome the system pressure , that is directly the unique energy-efficient secret of direct thermal heat pump units (EER COP up to 4.5 or more).

2 Cycle type
A  definition of the cycle heat pump: the so-called cycle heat pump, refers to the heated water just enhance the limited temperature (about 5 ° C) each time passed through the heat pump of air source heat pump water heater, must be repetitious cycle can be heated to reach setting temperature; the technology used by the early heat pump, there are still some manufacturers still use it because the product technology renovation costs problems.

B, Cycle heat pump features:
1), thewater heated by passing through the heat pump, heat pump not only as a heat source but also became tool mix the hot with cold water , using the hot water while the water in tank cooling gradually, user will feel very uncomfortable when the water temperature becoming lower and lower.

2), circulating heat pump can improve the water temperature 5℃ each cycle, the heat pump of air source water heater must operate with high temperature for a long time to achieve the setting water temperature. For example, you want to heat water from 15℃  to 55 ℃, the water pass through the heat pump efficiency

3. Instantl cycle air source heat pump water heater
there is two advantages of the direct thermal air source heat pump water heater:
1) to prevent the hot water tank turn into cold
2) defrosting, itis better to defrost use cycle system..

Immersion air source heat pump water heater.
      Also known as static heating heat pump water heater, the water temperature gradually to reach the setting temperature, the air source heat pump water heater heat water directly or indirectly through a heat exchanger.

4. Fluorine cycle air source heat pump water heater and water cycle air source heat pump water heater.

1) According to heat generated different methods, air source heat pump water heaters can be divided into fluoride and water cycles two kinds. The fluorine-cycle heating method is the most primitive way of heating. Simple principle, heat the brass directly in the tank inside, low cost of this heating method, but heat the water in the stationary state, it is easy to fur the brass, so thermal efficiency of air source heat pump water heater will be substantially reduced after a period. More serious is that the brass plate set in the tank scale corrosion perforation, freon leakage in the water into the room, very dangerous. Recent brass plate placed on the surface of the water tank outside air soure heat pump water heater, although there is some heat loss, but very safe, life is also greatly increased the longevity.

2) The water cycle heating method is more popular in the world, there is no brass pipe in the tank, there is tube heat exchanger in main unit. The cold water pumped from tank pass through the tube heated and sent back to water tank, until the water in entire tank to be heated. This heating method of current air souce heat pump water heater, will lead to high cost of equipment, but due to the forced convection of the pump, making the heat transfer efficiency greatly improved, but also avoid the problem of scaling, and cavitation. Safer and longer longevity.

How to distinguish between these two kinds of heating method of air source heat pump water heater? To see a host volume, due to the increased equipment components, the water cycle air source heat pump water heater, looks larger than the fluorine cycle of 1/3; To see host and tank connection materials, fluorine cycle air source heat pump water heater connected with brass the water cycle air souece heat pump water heater connected with water pipes; To see host viscera, open the cover, the water cycle air source heat pump water heater within the host in addition to the components of the necessary equipments, as well as tube heat exchanger, expansion tanks, pumps, more complex structure, the components of fluorine cycle air souce heat pump water heater is very simple in the host device, with no difference with the general air conditioning.