Why do the repairing air conditioner explode frequently, the repairer should pay attention to it!
Call 1: Please notify the installation and maintenance master of all outlets. Most of the current inverter air conditioners are throttling by electronic expansion valves. The maintenance and replacement of system components usually open the two or three-way valve to release the refrigerant even if it is over, such as the electronic expansion valve at the moment of power failure In the normally closed state, the system will retain some refrigerant. Blindly directly welding R32/R290 and instantaneous open flames may cause hidden dangers. Each outlet will focus on the workers. Most of the operations are not standardized and may cause an explosion!
Call 2: Now that 410 and 32 refrigerants are used, due to their super flammability and super high pressure, in the future, for this type of refrigerant air conditioner, there will be slight improper operation or quality problems of its own. The possibility of explosion is very high!
It is better not to use such a dangerous refrigerant. If the low pressure leaks, it will be a time bomb to suck in air when the compressor is working. Pay more attention to the maintenance, try to minimize the use of gas welding, nitrogen flushing, and it can't be inspected like 22 without cooling, it will explode at any time, can it be repaired if it is not repaired. Do not approach the machine when it is turning, and it will not be safe if the power is off. Life is yours, there is only one.
Whistle 3: I saw the Internet pictures, Gree bombed the most. The previous Gree used 1.5 hp and two hp, 32 refrigerant and 22 lines are the same, there is no high and low pressure protection, no external disk sensor. The two cabinet units installed recently found that the outdoor unit had added a high-voltage switch and an outer panel sensor, which seemed to be a bit scary and improved.
Call 4: As a result of illegal operations, pure combustible gas will only burn, and combustible gas mixed with air will explode. You must bear in mind.
