The general selection rules are refrigeration 150-250W/ m2 and heating 250-350W/ m2. In addition, factors such as space height, floor orientation, sealing performance and resident population should be considered comprehensively.
2. What is 1 machine, 1.5 machine and 2 machine? What is their cooling capacity?
The concept of several machines mainly depends on the output power of compressor motor. The output power of compressor motor of 1 machine is 735W, and the output refrigeration capacity is about 2300 W. It is not accurate to select air conditioner according to the refrigeration capacity. As far as the domestic air-conditioning market is concerned, the refrigeration capacity of 1 machine is about 2500W and 65438.
3. What is nominal refrigeration (heat)? What does it have to do with actual refrigeration (heat)?
A batch of air conditioners produced by air conditioner manufacturers have the same specifications and processes, but the cooling capacity is slightly different. In order to ensure that the ex-factory products can maintain the same performance in a certain range, the state has stipulated agreed indicators for products of various specifications and varieties, among which the refrigeration (heat) index is allowed to differ between the nominal refrigeration (heat) quantities, but it shall not be less than 95% of the nominal refrigeration (heat) quantities.
4. How to convert "calories" and "tiles"?
1000W=860 kcal, 1 kcal =1.6w.
5. How to equip the electric meter according to the selected air conditioner?
After the air conditioner is selected according to the room area, an electric meter should be equipped according to its rated input current. Generally, it is 1.5-2 times the rated input current to judge whether the capacity of the electric meter meets the requirements.
5. What are the requirements of the national standard (new national standard) for the noise index of air conditioners?
Rated refrigerating capacity
(w) window machine noise decibel /A split noise decibel /A
Indoor outdoor indoor outdoor
& lt2500 ≤53 ≤59 ≤45 ≤55
2500-4500 ≤56 ≤62 ≤48 ≤58
& gt4500-7 100 ≤60 ≤65 ≤55 ≤62
& gt7 100 … … ≤62 ≤68