How to save power on fixed frequency air conditioners
With the continued high temperatures in summer, the power consumption of fixed-frequency air conditioners has become the focus of many families. How to reduce electricity bills while ensuring comfort? This article combines popular topics and user discussions across the entire network for the past 10 days to summarize the power saving skills of fixed frequency air conditioners for you.
1. Power consumption principle of fixed frequency air conditioner
The fixed frequency air conditioner operates through the compressor at a fixed frequency. When the room temperature reaches the set temperature, it will stop and restart after the temperature rises. Frequent start and stop are the main reasons for power consumption.
| Running status | power consumption | Factors |
|---|---|---|
| Starting moment | 5-8 times the rated power | Compressor start current |
| Continue to run | Rated power | Energy efficiency ratio |
| Shutdown status | Standby power consumption | Circuit design |
2. 8 practical power saving tips
1.Set the temperature reasonably:26℃ is the best balance point, and the power consumption increases by 6-8% for every 1℃ reduction.
2.Use timing function cleverly: Set the power on and off according to the work and rest time to avoid long-term unmanned operation.
| Use scenarios | Recommended settings | Expected power saving |
|---|---|---|
| Sleep at night | 27℃+sleep mode | 15-20% |
| Working hours | Close 1 hour in advance | 8-10% |
3.Keep the filter clean: Clean once a month, and the power consumption can be reduced by 5-15% after the wind resistance is reduced.
4.Improve room airtightness: Check the gaps between doors and windows, and using blackout curtains can improve the refrigeration efficiency by 20%.
5.Avoid direct sunlight: The installation location of the outdoor unit should be ventilated and cool, and the efficiency should be increased by 3% for every 1℃ drop in the ambient temperature.
3. Comparison of power consumption of new and old air conditioners
| Use life span | Energy efficiency ratio | Power consumption in the same working conditions |
|---|---|---|
| New machine (level 1 energy efficiency) | 3.5 or above | 0.8 degrees/hour |
| 5 years old machine | About 2.8 | 1.2 degrees/hour |
4. Analysis of common misunderstandings
1.Frequent switching is more power-saving?mistake! The startup current will significantly increase the instantaneous power consumption.
2.Power saving when turning on dehumidification mode?Not exactly correct, prolonged use may damage the compressor.
3.Fan assist is useless?In fact, the circulation fan can help the cold air diffuse and reduce the somatosensory temperature by 1-2℃.
5. Maintenance suggestions
| Maintenance project | cycle | Effect |
|---|---|---|
| Clean the filter | 1 month | Maintain air volume |
| Check refrigerant | 2 years | Prevent efficiency attenuation |
Through the above methods, ordinary families can save 20-40 kWh of electricity per month. Calculated at 0.6 yuan/kWh, they can save 150-300 yuan of electricity bills in one summer. Rational use of air conditioners can not only save costs, but also reduce carbon emissions and contribute to environmental protection.
(Note: The data in this article are summarized from the 2023 test report of JD Home Appliances, State Grid Electric Power Research Institute and China Home Appliances Association)
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