1. First of all, the store area is 71 square meters, and it needs 5611W according to the cooling index of 81W per square meter, and 1 horses =735W, so it needs 7.6 horses to meet the cooling requirements, so two sets of 3 horses can just meet the cooling effect of your store. Of course, I will give you a high-grade calculation according to the cooling index of 81W per square meter. If it is mid-range, two sets of 3 horses can meet the requirements.

2. Simple distinction between household air conditioners and commercial air conditioners:

Just different positioning, roughly speaking, one is designed for family houses, and the other is designed for large commercial buildings or office buildings.

In terms of capacity, most of the domestic ones are below 3, while the commercial ones are much larger, ranging from 4 or 5 to hundreds.

from the cost point of view, domestic compressors are generally rotary compressors, so the cost is relatively low, but because of design problems, they can only be 1-5. The compressors in commercial systems are mostly scroll (single machine 3? 1 horses), screw machine (single machine 21-81 horses), lithium bromide, centrifuge (hundreds). The same kind can also obtain large refrigeration capacity through parallel connection.

from the installation point of view, most of the household window machines, split hanging machines and split cabinet machines (basically the latter two in China). But there is only one air outlet and only one output temperature. The commercial ones are basically central air conditioners, and each room can control the temperature separately.

According to heat conduction, household is generally air-cooled. Commercial use can be air-cooled or water-cooled.

Therefore, the scope of use is different between commercial and domestic use. As for the model, it can only be said that it is good or not.