How to calculate the number of air conditioners
As the summer heat continues, air conditioners have become an essential appliance in homes and offices. However, many consumers are confused about the concept of "horsepower" when purchasing air conditioners. This article will introduce in detail the calculation method of air conditioner horsepower to help you choose a suitable air conditioner model.
1. What is the number of air conditioners?
Air conditioner horsepower (HP) is a unit that represents the cooling capacity of the air conditioner. One HP is approximately equal to 2500W of cooling capacity. The larger the number of horses, the stronger the cooling capacity and the larger the applicable room area.
2. Calculation formula for the number of air conditioners
The choice of the number of air conditioners mainly depends on the room area, floor height, orientation, heat insulation and other factors. The following is a common calculation formula:
| Room area (㎡) | Recommended number of matches | Applicable scenarios |
|---|---|---|
| 10-15 | 1 horse | Small bedroom, study room |
| 15-20 | 1.5 horses | Master bedroom, living room |
| 20-30 | 2 horses | Large living room, small office |
| 30-40 | 3 horses | Large living room and conference room |
| 40 and above | 5 HP or central air conditioning | Villas, commercial places |
3. Other factors affecting the selection of match numbers
In addition to the room area, the following factors will also affect the choice of the number of air conditioners:
1.Floor height: When the floor height exceeds 3 meters, it is recommended to choose an air conditioner with 0.5-1 horsepower larger than the conventional number.
2.towards: For west-facing or south-facing rooms, due to strong sunlight, an additional 0.5 units is required.
3.Thermal insulation properties: For rooms with poor thermal insulation (such as the top floor), it is recommended to add 0.5 HP.
4.Number of personnel: For every additional person, it is recommended to increase the cooling capacity by 100W.
4. The relationship between the number of air conditioners and energy efficiency ratio
Energy efficiency ratio (EER) is the ratio of cooling capacity to power consumption. The higher the value, the more power is saved. The following is a reference for the energy efficiency ratio of common horses:
| Number of pieces | Refrigeration capacity (W) | Level 1 energy efficiency EER | Level 3 energy efficiency EER |
|---|---|---|---|
| 1 horse | 2500 | 3.6 or above | 3.0-3.2 |
| 1.5 horses | 3500 | 3.5 or above | 2.8-3.0 |
| 2 horses | 5000 | 3.4 or above | 2.6-2.8 |
5. Frequently Asked Questions
Q1: Is the larger the number of pieces, the better?
A: No. Excessive number of horses will lead to frequent starts and stops, increased power consumption and reduced comfort.
Q2: Is there any difference in the number of units selected between variable frequency and fixed frequency air conditioners?
A: Due to the adjustable power of variable frequency air conditioners, the applicable area is 10%-15% larger than that of fixed frequency air conditioners with the same number of horses.
Q3: How to calculate the number of non-standard rooms?
A: It can be converted according to the formula: required cooling capacity (W) = room volume (m³) × 150. 1 horse = 2500W.
6. Air conditioner purchasing trends in 2023
According to recent e-commerce platform data, consumers prefer:
1.Next level energy efficiencyProducts account for 65%
2.1.5 HP variable frequency air conditionerBecome the best-selling model
3.Self-cleaning functionAttention increased by 40% year-on-year
Conclusion
Correct calculation of the number of air conditioners can not only ensure cooling effect, but also avoid energy waste. It is recommended to accurately measure the size of the room before purchasing and take factors such as orientation and number of people into consideration. Nowadays, the intelligent selection tools launched by major brands can also assist decision-making, making purchasing more scientific and convenient.
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