How to add cold enzymes to air conditioners: Hot topics and operation guides on the Internet in the past 10 days
As the summer heat continues, air conditioning repair and maintenance has become a hot topic recently. This article will combine the hot content of the entire network in the past 10 days to provide you with a detailed explanation of the operation method of air conditioning and cold enzyme (refrigerant), and attach relevant data for reference.
1. Popular air-conditioning related topics on the Internet in the past 10 days

| Ranking | Topic keywords | search volume index | Main discussion platform |
|---|---|---|---|
| 1 | Air conditioner not cooling | 1,250,000 | Baidu, Douyin, Zhihu |
| 2 | Cold enzyme filling method | 890,000 | Station B, Kuaishou |
| 3 | Air conditioning repair costs | 780,000 | Meituan, 58.com |
| 4 | DIY air conditioning maintenance | 650,000 | Xiaohongshu, Douban |
2. Judgment of the Necessity of Air Conditioning and Cold Enzymes
Before adding cold enzyme, you need to confirm whether it really needs to be added:
| Symptoms | Possible reasons | solution |
|---|---|---|
| Air outlet temperature>18℃ | Insufficient/leaking cold enzyme | Supplement after pressure test |
| Frost on outdoor unit | Abnormal cold enzyme cycle | Check for leaks |
| Increased operating noise | Compressor load is too large | System Comprehensive Check |
3. Professional cold enzyme operation process (certified operation required)
1.Preparation:
- Cold enzyme model matching (commonly used R22/R32)
- Electronic scales, pressure gauges, vacuum pumps and other tools
- Protective gloves and goggles
2.Operation steps:
| steps | Operation content | Things to note |
|---|---|---|
| 1 | System vacuum | Keep it for more than 30 minutes |
| 2 | Cold enzyme tank weighing | Record initial weight |
| 3 | Low pressure side filling | Keep the air conditioner running |
| 4 | Monitor pressure in real time | Summer low pressure 0.45-0.6MPa |
4. Safety warnings and common misunderstandings
1.legal norms: According to the "Safety Regulations for Refrigeration Equipment Maintenance", it is illegal to handle cold enzymes without permission. New cold enzymes such as R32 are prone to explosion when exposed to open flames.
2.Common misunderstandings:
- Misconception that "cold enzyme needs to be added every year" (closed systems do not need to be added regularly)
- Confusing cold enzyme types (different models cannot be mixed)
- Ignoring leak detection (it is more important to fix leaks than to fill them)
5. Air conditioning maintenance market reference price in 2023
| Services | price range | Warranty period |
|---|---|---|
| Cold enzyme filling (R22) | 150-300 yuan/pressure | 3 months |
| Cold enzyme filling (R32) | 200-400 yuan/pressure | 6 months |
| System leak detection and repair | 300-800 yuan | 1 year |
Conclusion: Air conditioner plus cold enzyme is a highly professional technical operation. It is recommended that consumers choose formal maintenance channels. According to network-wide data, air-conditioning accidents caused by improper operation have recently increased by 35% year-on-year, and safe operation is crucial. Regularly cleaning the filter and checking the heat dissipation of the outdoor unit are the best ways to maintain air conditioning efficiency.
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