The central air-conditioning host is an important part of the entire central air-conditioning system. It can be said to be the core component of the entire central air-conditioning. In order to ensure the normal operation of the air-conditioning, it is necessary for everyone to do a good job in the maintenance of the air-conditioning host during normal use. Let us know how to maintain the main unit of the central air conditioner?

1. Ensure that the environment around the unit is clean, and regularly check whether the air-conditioning installation device, the control center function is abnormal, whether the starter and relay are operating normally, and whether the compressor is operating in good condition, etc.

2. Regularly check the condition of the shaft seal, check the water system and the heat exchange effect, and the refrigerant charge of the unit. Check the airtightness of the unit and the condition of the interlocking device of the accessory components of the unit.

3. During the process of disassembling and installing the filter element, you should not put your hands on the bottom, place it on both sides correctly, take out the original filter element, clean the filter case, and replace with a new filter element.

4. When maintaining and inspecting the main unit of the air conditioner, first close the gate valves at both ends of the oil filter, and then use the air pipe to drain the air into the barrel. For the exhaust valve, slowly increase it.

5. After the air conditioner is exhausted, use a special tool to disassemble it, and then manually move the filter to check whether the pressure is completely relieved.

6. Under normal circumstances, the temperature of the outer tubing of the two gate valves of the oil filter should be almost the same, or the temperature of the oil filter should be higher!

7. Check the sealing ring, install the filter, open the gate valve at the separator side, and exhaust for about 20 seconds. Keep the gate valves at both ends open, and check the airtightness of the filter.