How to add refrigerant to the car
As the temperature rises in summer, the frequency of use of automobile air conditioners increases significantly, and insufficient refrigerant will lead to poor refrigeration effect of air conditioners. This article will introduce in detail the steps, precautions and related data for adding refrigerant to help car owners solve problems quickly.
1. Preparation before adding refrigerant
Before adding refrigerant, you need to confirm whether there is any leakage in the air conditioning system and prepare the following tools and materials:
| Tools/materials | use |
|---|---|
| Refrigerant tank | Replenish air conditioner refrigerant |
| Pressure gauge group | Detect system pressure |
| Gloves and goggles | Protect operator safety |
| Leak detector | Check for leaks in the system |
2. Steps to add refrigerant
1.Check the pressure of the air conditioning system: Use the pressure gauge group to connect the high and low pressure ports to read the pressure value. The normal low pressure end pressure is 25-45 PSI and the high pressure end is 150-250 PSI.
2.Connect the refrigerant tank: Connect the refrigerant tank to the pressure gauge group and drain the air in the pipeline.
3.Start the air conditioning system: Adjust the car air conditioner to maximum cooling mode, and keep the engine speed at around 1500 RPM.
4.Add refrigerant slowly: Observe the pressure gauge and slowly add refrigerant until the pressure reaches the normal range.
5.Check the refrigeration effect: Close the filling valve, run the air conditioner for a few minutes, and confirm whether the air outlet temperature has dropped to a reasonable range (usually 6-10℃).
3. Things to note
| Things to note | illustrate |
|---|---|
| Avoid overfill | Excessive filling will cause excessive system pressure and damage the compressor |
| Use a suitable refrigerant | Different models may use different types of refrigerant (such as R134a or R1234yf) |
| Operating environment ventilation | Refrigerant leakage may be harmful to the human body and needs to be operated in a well-ventilated place. |
4. Frequently Asked Questions
Q: What should I do if the air conditioner does not cool down after adding refrigerant?
A: It may be that the system has leaks, compressor failure or expansion valve blockage, so it is recommended to send it to a professional repair shop for inspection.
Q: How often does it take to add refrigerant?
A: Under normal circumstances, refrigerant will not be consumed. If frequent replenishment is required, it means there is a leakage in the system.
5. Hot Topic Relationship
Recent popular discussions on automotive air conditioning across the Internet include:
| topic | Popularity index |
|---|---|
| New energy vehicle air conditioner power consumption problem | 85 |
| Promotion of environmentally friendly refrigerant R1234yf | 78 |
| Safety risks of DIY refrigerant refrigerant | 92 |
6. Summary
Adding refrigerant to the car is a task that requires careful operation, and car owners should fully understand the operating steps and precautions. If you are not confident in your own technology, it is recommended to leave it to professional technicians. Regularly checking the air conditioning system can avoid insufficient cooling when using the car in summer.
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