R407C EVI China High Efficiency Air Source Commercial Hot water
How Do Air to Water Heat Pumps Work?
Air to water heat pumps utilise energy from the air, which is used
to generate heat with a water-based heating system. The heat from
the air makes the chemical liquid inside the pump evaporate. The
compression pump extracts the evaporated liquid from the steam
generator and transfers it to a smaller space, forwarding the
pressure and temperature of the liquid. When the liquid reaches
approximately 100 degrees celsius, the steaming liquid is
transferred to the steam condenser. The water in the heating system
and the room temperature cool the steaming liquid, while releasing
heat to the heating system. The cooled liquid runs to the vent that
lowers the pressure, before it returns to the steam generator. From
there the whole process is repeated.
When it comes to choosing a heat pump there are some things that
must be taken into account such as:
The climate where you live.
The type of house or building where the heat pump will be
The number of people living in the house.
The capacity at which the heat pump will be used.
|Parameters||Heating capacity (kW)||10.5||42||52||76||95||110|
|Input power (kW)||2.7||10.8||13.2||19.2||23.8||27.8|
|Rated current (A)||12.4||20.7||25.9||36.1||41.4||52.3|
|COP (Coefficient of Performance)||3.89||3.89||3.94||3.96||3.99||3.96|
|Rated outlet water temperature (℃)||55||55||55||55||55||55|
|Highest outlet water temperature(℃)||60||60||60||60||60||60|
|Production capacity (L/H)||226||903||1118||1634||2042||2364|
|water circulation (L/H)||1806||7222||8942||13069||16336||18916|
|IP Grade (Level of protection)||IPX4||IPX4||IPX4||IPX4||IPX4||IPX4|
|Anti-electric shock Rate||I||I||I||I||I||I|
|Net weight/Gross weight(kg)||100/106||330/350||372/412||482/532||582/642||612/675|
|Diameter of pipe (mm)||DN25||DN32||DN32||DN50||DN65||DN65|
What to Check When Comparing Heat Pumps From Different Producers?
You should be aware of the characteristics that each product has,
as they predefine the performance.
- Scroll compressor. Scroll compressors adjust their speed according to the desired
heat level. This implies energy saving and longer heat
- TWS technology. This is a technology that allows to heat a large tank of water
faster than a traditional heat pump, saving on costs at the same
- COP value. The Coefficient of Performance measures a heat pump's efficiency,
since the value refers to the units of heat produced with one Kw of
electricity. For example if the value is 3, it means that for every
KW, 3 units of heat are produced. Read more about performance
measures here: Air source heat pump performance.
- Match with solar cells. The possibility to couple heat pumps with solar cells is a
convenient option as it enables you to experience further savings.
However, not all systems are suitable.
- Cooling option. Another function that is not offered by all manufacturers is the
possibility to invert the cycle during the summer and make the heat
pump work as a central air conditioner. These systems may be more
expensive than the traditional ones, but it is important to keep in
mind that the former ones include two devices in one, and it might
be less expensive than installing them separately.