What does P in 1.5p for air conditioners stand for?

1P=0.735kW. “\"Horsepower\" is a unit of power, meaning one horse’s strength: 1 horsepower = 1 horsepower = 736 watts. At 220V, 736/220 = 3.35A; at 380V, 736/380 = 1.94A. For household air conditioners, using \"horsepower\" as a measure is indeed a practice from abroad. The “pi” here refers to the input power. Convert it to W, expressed in terms of output power, which is the standard in our country*. One \"horsepower\" is equivalent to 2200W–2600W. So using the unit of ‘pi’ is too rough, which is why terms like ‘one big pi’ and ‘one small pi’ came into use. Generally, one \"unit\" refers to a cooling capacity of 2300–2500 watts. The approximate input power is around 800W. 　　The concept of horsepower in air conditioners refers to the power of the air conditioner compressor motor. 　　The total electrical input power of the machine includes the power required by other electrical components such as the blower fan. So 1 unit is slightly larger than 0.735 kW. For air conditioners with only cooling capacity, I believe it is sufficient to estimate the power consumption at 0.75 to 0.85 kW per unit. The process of calculating the load relies on empirical data, and due to differences in usage environments, there can be variations in the calculated load; therefore, using an approximate range of values for estimation should also work fine. An air conditioner with a capacity of 1 unit consumes nearly 0.75 kWh of electricity per hour! 1 horsepower equals 1 unit, which is equivalent to 736 watts. At 220V, 736/220 = 3.35 A; at 380V, 736/380 = 1.94 A

P stands for horsepower, with 1P equal to 0.73KW.

1 unit is equal to 735W. The so-called \"horsepower\" refers to the input power of the compressor (i.e., the electricity consumption). Since different air conditioners have varying energy efficiency ratios – which, in simple terms, indicate how energy-efficient they are – we must not use horsepower as a criterion for determining the size of an air conditioner when making a purchase. In fact, the price tag is just a trick used by merchants to deceive consumers! Be sure not to fall for a scam! When choosing an air conditioner, it’s important to consider its capacity, that is, its cooling power! 　 The relationship between the model of an air conditioner and its “horsepower” rating is roughly as follows (specifications may vary among different manufacturers): KF-23: 0.5 horsepower; KF-25: 1 horsepower; KF-28: 1.5 horsepower; KF-31(32): 1.5 horsepower; KF-33: 1.5 horsepower; KF-35: 1.5 horsepower; KF-51: 2 horsepower; KF-60: 3 horsepower; KF-70-75: 3.0 horsepower; KF-120: 5 horsepower; KF-130: 5.0 horsepower. A unified standard has long been established for naming air conditioner models. For example, KFR-25GW/D: here, “K” denotes an air conditioner, “F” indicates a split-type unit, and “R” means it uses a heat pump for heating (i.e., a unit that can provide both cooling and heating; units that only provide cooling are not labeled this way). The number “25” indicates that the cooling capacity of this air conditioner under standard testing conditions is 2500 watts per hour. “G” refers to the indoor unit of a split-wall-mounted air conditioner (the indoor unit of a cabinet-type air conditioner is denoted by “L”), while “W” refers to the outdoor unit of a split-type air conditioner. The letter D after the slash indicates auxiliary electric heating; if it is BP, it means variable frequency. The meaning of the digits or letters that follow is determined by the manufacturer. When you go to the mall, you can see that each air conditioner is labeled in this way, and joint-venture brands are no exception. You can tell its capacity just by looking at the air conditioner’s model. By the way, the choice of a household air conditioner is based on the principle that generally, 200W of cooling capacity is required per square meter; this helps determine the capacity of the air conditioner needed for that room. 1P corresponds to 2000–2500 kilocalories (800–950 watts); 1.5P is 3200–3600 kilocalories (1100–1300 watts); 2P equals 4600–5100 kilocalories (1600–1950 watts); 3P is 6000–7200 kilocalories (2500–2980 watts). The values I’ve mentioned represent approximate cooling capacities and power levels, for reference only!

Try to consider the rated cooling capacity; estimating based on power is neither scientific nor advisable.

P, also known as “HP”, is horsepower; 1 HP = 735 W.

I wasn’t quite sure either, but now I understand. Thank you all.