This article is reproduced from: Brother Driver

Author: Brother Driver

Every winter, there will be fan brothers who ask me in private messages or comments, should I turn on the A/C when the air conditioner is turned on? In the past, it was the oil car brother who asked a lot, and now there are more tram brothers who ask this question, and I also understand, after all, the heating of the tram is PTC and heat pump or something, which is more complicated, so I have summarized the suggestions for 6 situations today, which will definitely help you answer the question of how to drive the most economical car in winter.

First of all, we have to make it clear that A/C is the compressor button of the air conditioner, after pressing it, it has 3 functions, cooling, dehumidification, and deodorization that many people don't notice.

Then let's look at the simplest oil car, its air conditioning heating capacity, all from the engine coolant after the circulation of waste heat, a fan to suck the air outside the car in, the air into a coolant radiator, is heated and then blown into the car, in essence, it is so simple, then can not open A/C, it is divided into 2 situations.

The first is that you are in the northern region, the humidity of the air is very low in winter, and the air is heated and blown into the car is also very dry, it will not cause the windshield to fog up, so there is no need to turn on A/C, you just control the temperature of the air conditioner.

The second is that you are in the southern region, even in winter, the air humidity is very large, after the air is heated and blown into the car, it will immediately cause the glass to fog up, which needs to open the A/C, evaporate part of the water in the hot air, and then let it enter the car, the glass will not fog up, but of course the fuel consumption will become higher.

Then the tram can not open A/C in winter, it should be divided into 3 situations, one is your tram, using pure PTC heating, to put it bluntly, in your car, built-in a heater, then it can not open A/C and the logic of fuel vehicles is the same, the air humidity is large, it will cause the windshield to fog up, just open, the air humidity is small, there is no need for this.

In the second case, in order to save electricity, many old brothers who drive trams open the inner circulation most of the time, but if you sit in the car, it is a source of continuous evaporation of water, so if you don't open A/C, the glass will gradually begin to fog up, affecting driving safety, so you still need to occasionally open A/C to dehumidify, but it is also dangerous to keep the internal circulation for a long time, so I don't recommend you to do this.

The third situation is that your air conditioner has a peculiar smell, this kind of problem is very common, because after a summer of use, the evaporation box of the air conditioner will be moldy, but in the summer, because you have been driving A/C, so even if the evaporation box is smelly, it is not too obvious, but in winter, as long as you don't open A/C, the evaporation box does not work, then what you smell must be hot smelly wind, so at this time, if you are too lazy to wash the air conditioner, then for your own health, or drive A/C, the oil truck also has this problem.

The fourth situation is that your tram uses a heat pump air conditioning + PTC system with dual heat sources, the A/C button of this type of model is already different from that of the oil car, it controls the heat in addition to the cold, so if you don't click on it, then your heating has always been PTC, and there must be no heat pump to save energy, so be sure to click on the A/C.

The above is 6 kinds of suggestions on whether the car air conditioner heating can be turned on A/C, I hope it will help you, we will see you next time~