Heat Pump Working Medium

The working fluid of heat pumps used to be freon, but since freon has a destructive effect on the earth's atmospheric ozone, in order to protect the ecological environment of the earth, in addition to improving the cooling coefficient of the heat pump and effectively utilizing energy, scientists from all over the world are also committed to the development of new refrigerants. Working fluids that have replaced Freon have been used. However, the working fluid used by most manufacturers in China today is still R22, and the era of using environmentally friendly working fluid R417A and 134A has not yet come. However, some countries such as Japan have taken the lead in adopting CO2 as a working medium so as not to cause damage to the ozone layer. (So when installing, the copper pipe must be connected tightly to prevent R22 from leaking.) In addition, the above-mentioned R22, R417A, 134A, and CO2 will not cause harm to the human body. Even if there is leakage, the whole set of equipment is still safe.