How to check the refrigeration of air conditioner
As the high temperature in summer continues, the cooling effect of air conditioners has become the focus of consumers' attention. How to judge whether the cooling performance of the air conditioner is up to standard? This article will provide you with a structured analysis from four aspects: refrigeration principles, purchasing indicators, frequently asked questions, and hot topics across the Internet.
1. Principles and core indicators of air conditioning and refrigeration
Air conditioning and refrigeration mainly rely on the four major components of the compressor, condenser, evaporator and expansion valve to work cyclically. The following are key parameters for measuring cooling effectiveness:
| Indicator name | definition | Reference value |
|---|---|---|
| Refrigeration capacity (W) | Heat removed per unit time | 1 horse≈2324W (applicable to 10-15㎡) |
| Energy Efficiency Ratio (EER) | Cooling capacity to power consumption ratio | New national standard first-level energy efficiency ≥3.5 |
| Circulating air volume (m³/h) | air circulation volume per hour | ≥600 (1.5 HP model) |
2. Inventory of popular air-conditioning topics across the Internet (last 10 days)
By analyzing social platform data, the following hot topics were sorted out:
| topic type | heat index | Typical discussion points |
|---|---|---|
| Variable frequency vs fixed frequency | ★★★★☆ | Differences in power saving and temperature control accuracy comparison |
| Self-cleaning function | ★★★☆☆ | Actual measurement of sterilization effect and mold growth problem |
| Refrigerant controversy | ★★★☆☆ | R32 and R290 safety discussion |
| Air conditioning disease protection | ★★★★★ | Humidity control and wind direction adjustment skills |
3. 5 practical tips for purchasing air conditioners
1.See area matching: 150-200W cooling capacity is required per square meter, and the west-sun room needs to increase by 20%
2.Check the air outlet temperature: During normal cooling, the air outlet temperature should be at least 8°C lower than the room temperature.
3.Check noise data: It is recommended to choose a ≤40 decibel model for the bedroom (the actual measured value is not the nominal value)
4.Measure cooling speed: The room temperature should drop by 3-5°C within 30 minutes (initial temperature 32°C)
5.Than after-sales policy: Focus on the compressor warranty period (6-10 years for mainstream brands)
4. Solutions to common refrigeration problems
| Fault phenomenon | Possible reasons | Treatment method |
|---|---|---|
| Cooling is slow | Filter clogged/insufficient refrigerant | Clean the filter/contact after-sales service for leak detection |
| Internal unit dripping | Insufficient slope of drain pipe | Adjust the tilt angle of the stand |
| Severe odor | Evaporator mold | Enable high temperature self-cleaning function |
5. New air conditioning technology trends in 2023
1.Twin rotor compressor: Improve the energy efficiency ratio to above 4.0 (Gree and Midea flagship models)
2.Windless technology
4. Common problems in the use of air conditioners
Based on consumer feedback and maintenance data, the high-frequency problems are summarized as follows:
| Problem phenomenon | incidence | solution |
|---|---|---|
| The wind is not cold | 23.7% | Check filter/refrigerant pressure |
| Abnormal noise | 18.2% | Fastening bracket/lubrication fan |
| Remote control failure | 15.4% | Replace battery/reset receiver |
5. New trends in air conditioning technology in 2023
1.graphene condenser: Haier’s new product’s thermal conductivity efficiency increased by 30%
2.AI temperature control algorithm: Midea’s COLMO series can learn user habits
3.Photovoltaic drive: Gree solar air conditioner saves 40% electricity
Through the above structured analysis, consumers can evaluate the refrigeration performance of air conditioners more scientifically. It is recommended to make a comprehensive judgment based on energy efficiency labels, actual measurement data and after-sales service when purchasing to avoid simply pursuing low-priced products.
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