-
ABOUT US
-
-
19
2021
-
02
If the four-way valve fails, repair it like this
In the process of using the four-way valve, many users will find that the air-conditioning system will have two kinds of failures, that is, insufficient flow and poor commutation. So what are the reasons for these two failures? If it does, how should it be repaired? If you want to know, just listen to the editor to answer it for you.
In the process of making the air conditioning system, if the manufacturer does not strictly require its quality and does not strictly seal the interior, it is very easy to leak, resulting in insufficient circulation of the overall system refrigerant, resulting in insufficient flow. Especially when the weather is very cold, the evaporation of the refrigerant is insufficient, so the heat energy provided is not enough, so the gas cannot become a high temperature state. The main reason is that if the four-way method used in it cannot match the entire air-conditioning system, that is to say, the flow rate in the middle of the purchased four-way valve is large, but the air-conditioning system cannot provide him with such a large condition, and the capacity is insufficient. In this way, matching cannot be performed, resulting in less traffic. Then you can touch the three pipes under the four-way valve with your hands. If you find that all three pipes are generating heat, it may be because the four-way method itself is not in place, and you are in a state of intermittent gas flow.
When the coil in the four-way valve is disconnected, or the voltage that it can bear does not meet the performance requirements of the internal coil of the four-way valve, the spool of the four-way valve cannot be operated. It is also possible that part of the pilot valve is deformed, which makes it unable to operate. It is also possible that the capillary tube is deformed and the flow is insufficient, and the switching pressure difference formed is not enough to be able to operate. However, most of the reasons may be that some debris sucked into the air-conditioning system enters the inside of the four-way valve, and the piston or the main valve plug inside is stuck, and the direction cannot be changed. At this time, you can observe whether the operation of the four-way valve is normal. If the main valve body does not operate, it may be that the lower pressure difference required by the four-way valve during the reversing process has not been established, and the system cannot be If it is filled with some refrigerant, it cannot operate.
The air-conditioning system will inevitably have some failures after being used for a long time, so if there is a failure, it is recommended to find a professional person to come for maintenance.
CONTACT US
Contact: Mr. Chen
Mobile: +86-13825784596（WeChat）
Tel: +86-769-2662 1826
Email: dgcggy2008@163.com
Add.: Dalingshan Town, Dongguan City, Guangdong Province, China
Sanhua Mall
（Recommendation code: 0023）
Copyright 2023 Dongguan Sanjiang heating Equipment Co., Ltd. Powered by www.300.cn SEO Business License