How to calculate the number of central air conditioners
The number of horses of a central air conditioner is an important parameter to measure its cooling capacity. Choosing the appropriate number of horses can not only ensure comfort, but also avoid energy waste. This article will introduce in detail the calculation method of the number of central air conditioners, and attach structured data for reference.
1. What is the number of central air conditioners?
Horsepower (HP) is the unit of air conditioning cooling capacity. 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 suitable area.
2. How to calculate the number of central air-conditioning units?
The following factors need to be considered when calculating the number of central air conditioners: room area, floor height, orientation, thermal insulation performance, etc. The following is a simplified calculation formula:
| Room area (㎡) | Recommended number of horses (HP) | Refrigeration capacity (W) |
|---|---|---|
| 10-15 | 1 horse | 2500-3500 |
| 15-25 | 1.5 horses | 3500-5000 |
| 25-35 | 2 horses | 5000-7000 |
| 35-50 | 3 horses | 7000-10000 |
| 50-70 | 4 horses | 10000-12000 |
3. Other factors affecting the selection of match numbers
1.Floor height: If the floor height exceeds 3 meters, the number of pieces needs to be increased appropriately.
2.towards: West-facing or south-facing rooms need to add 0.5-1 pieces.
3.Thermal insulation properties: Rooms with many glass windows or poor insulation require increased cooling capacity.
4.Personnel density: If there are many people in the living room or office, additional calculation load is required.
4. The relationship between the number of central air conditioners and energy efficiency ratio
Energy efficiency ratio (EER) is the ratio of cooling capacity to power consumption. The larger the number of units, the higher the energy efficiency ratio. However, the selection needs to be based on actual needs to avoid over-configuration.
| Number of horses (HP) | Energy Efficiency Ratio (EER) | Annual electricity consumption (estimated) |
|---|---|---|
| 1 horse | 3.2-3.5 | 800-1000 degrees |
| 1.5 horses | 3.5-3.8 | 1000-1200 degrees |
| 2 horses | 3.8-4.0 | 1200-1500 degrees |
| 3 horses | 4.0-4.2 | 1500-1800 degrees |
5. How to verify whether the number of matches is appropriate?
1.Measured temperature: 30 minutes after the air conditioner is turned on, the room temperature should be stable within ±1°C of the set value.
2.operating noise: Excessive number of horses may cause the compressor to start and stop frequently and increase noise.
3.Electricity bill: Abnormally high values may indicate match number mismatch.
6. Summary
The selection of the number of central air conditioners requires comprehensive consideration of area, environment and usage habits. It is recommended to consult professionals and refer to product parameters. Properly matching the number of horses can improve comfort and reduce energy consumption.
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