Summer air conditioning is very power consumption and power, so in order to be safe, a separate power is also the top priority of the air conditioning installation. However, in the air conditioning wire selection, many friends are not sure whether to choose 2.5 square wires or 4 square wires? And I listened to the old electrician said, only to realize that I was almost deceived!
One, 1.5 horsepower air conditioning with 2.5 square wires enough?
Often the home of the wall unit is basically 1.5 pi, 1.5 pi air conditioning refrigeration in the 1300 watts or so, the maximum power of the heating in the 2000 watts or less, thus converting the current, 1.5 pi air conditioning should be within the maximum current 10A. Usually 10A self-matched line 1.5 square millimeters is enough, and taking into account the decoration of the line buried in the wall, poor heat dissipation, you can increase the appropriate diameter. Therefore, 2.5 square will be able to.
And 2.5 square copper core wire cross-section flow is 25A, even if the 3P machine rated power is only a maximum of 3800 watts (including electricity store) current is 17A, if the aluminum core wire, 2.5 square cross-section flow is 20A, can also meet the requirements. However, when you buy a new house, the developer is basically installed 4 square wires, said in order to take into account the start-up overload heat.
1, in order to get a bigger profit
2, because the householder to install air conditioning power is different, in order to facilitate future use, of course, will also choose the bigger the better.
Ordinary families choose practical on the line, 1.5 horsepower air conditioning configuration 2.5 square copper wire has been enough for daily use. Of course, if you have to configure a 4-square line, in addition to greatly increase the cost, the other is not a big problem. Depends on your needs! But if it is the cabinet air conditioning is best to configure 4 square wire!
Two, air conditioning installation notes:
1, fixed mounting bracket: mounting bracket with expansion bolts or long bolts, the wall is thin or not strong enough should be fixed with long bolts, bolts should be added to the anti-loosening pads, otherwise it may cause the loosening or fall, fixed bolts should be more than 6, the diameter shall not be less than 10mm, fixed to withstand the weight of the person plus the weight of the machine 4 times, the bracket should be Keep horizontal.
2, the outdoor unit with a diameter of 10mm bolts fixed to the bracket, bolts should be worn from the top down, and add anti-loosening pads, check the level of the outdoor unit. If the outdoor unit is installed in a place higher than the indoor unit, it should be installed according to the method shown in the following figure, and the height difference should be less than 5 meters.
3, even the power line and signal line: remove the cover of the outdoor unit's electrical box, according to the indoor unit junction box and outdoor unit junction box in the paired number, connect the wires.
4, do not install at the head of the bed
(1) condensate leakage inconvenience, air-conditioning hole to consider tilting outward, some homeowners home air-conditioning hangers due to the "drip pipe" is not smooth and reverse flow of water, even if you immediately unplugged the power supply can not be stopped in time to stop dripping water. As long as the air conditioning hole slightly adjusted to prevent water from coming in the air conditioning hole, the drip tube "high outside and low inside" caused by the air conditioning water backflow of things do not have to worry about.
(2) The indoor unit is noisy, the indoor unit is installed at the head of the bed, the noise will affect the quality of sleep.
(3) inconvenient maintenance, if the indoor unit is installed at the head of the bed, the later air conditioning cleaning and maintenance will be relatively time-consuming and laborious.
5, try not to install in the window
Window insulation or insulation is not good, cooling or heating, will increase the load of the indoor unit, affecting the efficiency of cooling and heating, increase the air conditioning power consumption, if installed by the window to ensure that the window tightness.
6, air vents do not blow at people, try to choose the right angle of the wind
Summer people sleep, pores will increase, if the air conditioning wind blowing directly at people, will increase the likelihood of people suffering from air-conditioning disease, headaches, rheumatism. The above situation requires adjusting the air outlet angle of the air conditioner, or moving the position of the bed so that the wind blows from the side.