Your home's inverter air conditioner has been vacuumed

Your home's inverter air conditioner has been vacuumed Air conditioning is now an indispensable household appliance in our homes. In the winter, many families in the south have begun installing air conditioners for heating. Consumers reflect that the newly-purchased inverter air conditioners are not as good as ordinary ones. In fact, some inverter air conditioners have poor cooling effect. This is not the reason for the products themselves. It is because the installers cut corners during installation, or lack of relevant professional knowledge. The air conditioner is vacuumed.

Industry sources said that not all air conditioners must be vacuumed. General inverter air conditioners, non-fluorine-free new refrigerant air conditioners and other types require vacuum, and ordinary air conditioners are unnecessary. The air conditioner does not run out of vacuum and it does not run. It is only that the air conditioner is less efficient because there is air mixed in the refrigerant.

To ensure vacuuming for 15-20 minutes

Air conditioning three points quality, seven points installed. Vacuum pumping is an indispensable step in the installation process of a non-fluorinated inverter air conditioner, and is also the most critical step in ensuring the high performance of the air conditioner. However, the professionalism of the installation workforce is now uneven, and there is no guarantee that everyone will consciously operate this process. The normal pumping time is 15-20 minutes to ensure that the air in the system is completely pumped away. Otherwise, the overall performance of the air conditioner is easily affected, resulting in poor cooling and heating effects and high energy consumption. Summer is the peak period of air-conditioning installation. Some workers may not smoke or simply draw a few minutes to install more units and save time.

How to tell if the master has vacuum?

First, you can look at the time. Vacuuming takes about 10 minutes more than normal installation. Next, see if the master has used a vacuum pump. More importantly, the master will ask you for the cost of vacuuming (usually more than ten yuan). In fact, manufacturers now have installation receipts. After the masters are installed, they need to be confirmed by the customer. Manufacturers will return visits. If the vacuum is drawn without pumping, it will only harm the workers themselves.

Vacuum the specific steps

When installing the inverter air conditioner, vacuum must be applied to the connected air conditioner refrigerating system to eliminate the air in the system. How to vacuum the air conditioner? Here we introduce the concrete steps of air-conditioning vacuum.

1. Connect the manifold valve filling hose to the low pressure valve filling port (fluorine injection nozzle). The high and low pressure valves must be closed at this time.

2. Connect the filling hose connector to the vacuum pump.

3, fully open the manifold valve Lo (low pressure) handle, start the vacuum pump vacuum.

4, generally an air-conditioning vacuum about 15 minutes, two air-conditioning vacuum about 20 minutes, three air-conditioning vacuum about 30 minutes, confirm whether the pressure gauge pointer refers to -1.0 × 105pa (-76cmHg), vacuum completed Afterwards, fully close the manifold valve Lo handle and stop the vacuum pump.

5. After checking the vacuum, open the valve slightly to vent the air to balance the system pressure and prevent the air from entering when the tube is removed. After removing the hose, fully open the high and low pressure valves.

6. Tighten the high and low pressure valve bonnets and filling caps (fluorine injection nozzles).

Some irresponsible installation workers, for the sake of convenience, ignore the legitimate rights and interests of consumers and cut corners during installation, resulting in a significant reduction in the effectiveness of non-fluorinated inverter air conditioners. For this reason, experts advise consumers that when installing inverter air conditioners, it is necessary to pay attention to whether the installation workers perform vacuum processing.

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