The full name of air conditioner is air conditioner, which generally refers to electrical appliances that adjust the temperature, humidity, cleanliness and flow rate in a specific space to meet the requirements of standard technology and human comfort.
It has three basic functions: refrigeration, heating and dehumidification.
The working environment temperature is -7℃-43℃ (national standard).
Refrigeration 18℃ (indoor) ~ 43℃ (outdoor), dehumidification 18℃ (room temperature) below.
National standard for air conditioning noise: 2500W-4500W refrigeration capacity ≤48 dB for internal machine and ≤ 58 dB for external machine; The refrigerating capacity is 4500W-7500W, and the inside is ≤52 dB, and the outside is ≤62 dB.
2. According to the main functions, air conditioners are divided into:
Single cooling type code ellipsis (special for making points)
Heat pump type code R (including refrigeration, heat pump heating, refrigeration, heat pump and auxiliary electric heating device refrigeration and heating. )
Electric heating type code d (refrigeration, heating by electric heating device).
According to output power: 1, 1.5, 2, 2.5, 3, 5, etc.
According to the working mode of compressor, it can be divided into fixed speed and variable frequency (variable speed).
3. Number and area of air conditioners
According to different room types, the cooling capacity of 1 m2 is 150W-200W, and the heating capacity is 220 W-250 W, so the use area should be appropriately relaxed when introduced.
1≤12m21.5 ≤18m2 ≤ 28m2.
2.5 horses ≤40 square meters, 3 horses ≤50 square meters and 5 horses ≤75 square meters.
4. Advantages of frequency converter (DC frequency conversion, AC frequency conversion):
(1) rapid cooling and heating
(2) Good constant temperature effect
(3) Save electricity
(4) Long service life
The low voltage range of the inverter is 220v15%.
Frequency conversion principle: Adjust the speed of compressor by frequency converter, so as to adjust the cold and heat.
The above information is more than enough for training ~ ~