1, different heat exchange methods
Hot air blower improves indoor temperature through heat exchange between high-temperature refrigerant and indoor air, while air source heat pump water heater improves water temperature through heat exchange between refrigerant and water, and finally improves indoor temperature through circulating hot water.
2. Different parts
The air-cooled copper tube fin condenser is used for the hot air blower, and the water-cooled high-efficiency water tank, plate heat exchanger or sleeve condenser is used for the air source heat pump heater.
3. The terminal heating mode is different.
Air source heat pump water heater can be combined with floor heating, radiator, fan tray and other terminals by circulating hot water at the end. Generally, a household only needs to be equipped with a host computer, with multiple rooms heating at the same time. However, most hot air blowers are still equipped with an outdoor unit and an indoor unit. A hot air blower can only heat one room, and multiple rooms need to buy multiple sets of equipment.
4, the implementation of different standards
The air source heat pump heating unit implements the national standard GB/T.
25 127.2-20 10, the nominal heating condition is dry-bulb temperature/wet-bulb temperature-12℃/- 14℃ (the outlet water temperature at the use side is 4 1℃), and the heating performance coefficient under the nominal working condition (. At present, the nominal heating condition of heat pump fan is outdoor dry/wet bulb temperature-12℃/-13.5℃; The working condition of ultra-low temperature heating is outdoor dry bulb temperature -20℃, and the applicable range is -25 ~ 43℃.
Air energy heat pump
Advantages and disadvantages of air energy heat pump and air energy hot air fan Compared with the advantages of air energy hot air fan, it can realize the quick start and stop of local time and space, and the room heating temperature rises quickly. The initial investment cost is much lower than that of ordinary air source heater, and the temperature adjustment is convenient and the operating cost is more economical.
Disadvantages of air energy hot air blower: it can't radiate warmth to the walls around the human body, and it has a sense of blowing. Compared with traditional hot water radiator heating and floor heating, it is not comfortable. At present, Gemeiyue low-temperature air source heat pump hot air blower adopts floor-standing fan, and the upper and lower air outlets can air out at the same time, and can also be freely adjusted to the lower air outlet or the upper air outlet to air out independently, thus avoiding the common air conditioner's head warming and feet cooling, and increasing the comfort.
Generally speaking, the heating temperature range of heat pump hot air mechanism is -25℃ ~ 24℃, which is much higher than that of ordinary air conditioners-15℃ ~ 20℃, so its energy-saving effect is very remarkable, especially in the low-temperature working condition of outdoor temperature -20℃, its heating energy efficiency can still reach COP 2.0, and at the same time, the heat pump hot air blower has the characteristics of rapid heating and cooling, which is more suitable for some businesses.
In addition, the fan of low-temperature air source heat pump is not troubled by water pipe icing and other problems, and the system will be more stable, so it is also very suitable for heating places in some alpine regions such as Tibet and Qinghai.