Many people are used to perceiving an air conditioner solely as a means of cooling, but modern models are capable of not only cooling but also heating a room. But how effective is an air conditioner as a heater, and can it really be used in winter? In this article, we will analyze how the heating mode works and in what cases it is justified. If you are thinking about purchasing a system, high-quality air conditioning installation in San Diego from Tytum will provide a competent selection and installation of the device for any needs.

How Does an Air Conditioner Work in Winter?

The principle of operation of a split system is based on the physical properties of a liquid. During the transition to a gaseous state, it takes heat from the surrounding air, and during condensation, the opposite happens.

The air conditioner consists of an evaporator (located in the indoor unit) and a condenser (located in the outdoor unit), connected by tubes through which the cooling liquid (freon) circulates. In the process, it goes from a liquid state to a gaseous state and back, taking in and giving off heat. Thus, the air in the indoor unit is cooled, which is then discharged outside using a fan.

The heating operation occurs according to the same scheme but in reverse. In the indoor unit, freon condenses, which causes the air to become warmer. After the refrigerant enters the outdoor unit, it evaporates with heat consumption. This process is much more complicated than the previous one because the air temperature outside the window can be low. That is why not all air conditioner models can work to heat the room in winter.

At What Temperature Can You Turn on The Air Conditioner For Heating?

If the description of the split system indicates that it has a heating function, do not rush to heat the room with it. Most modern models, especially non-inverter types, can only work normally if the temperature outside is not below 41°F. This function can help you wait out the off-season, but it is useless in winter.

Some more expensive inverter models can operate at temperatures down to 59°F. This is possible due to the smooth adjustment of the compressor. The most advanced air conditioner options are designed for frost down to -22°F. They are very expensive.

Before turning on the air conditioner for heating, look in the instructions to see how many degrees you can do this. All the information is in the instructions. It is important to remember that thermometers can be wrong by 33–37°F. If the temperature approaches critical, it is better not to turn on the equipment to prevent its breakdown.

The Air Conditioner Does not Work For Heating: Possible Reasons

There are several reasons why the air conditioner does not work for heating. The most common is the lack of such a function in the selected model. The possibility of reverse circulation of freon should be included in the design and is not available everywhere. If the split system, theoretically, is designed to work in winter but does not function properly, you need to look for the problem.

A decrease in pressure in the condensation system, which occurs due to a decrease in the temperature outside. If you do not stop the equipment in this situation, icing of the line or overheating of the compressor may occur.

Water hammer. This is a condition in which the pressure in the system increases sharply, which can lead to its breakdown. It occurs due to a violation of the transition of freon from a liquid to a gaseous state and vice versa. The refrigerant partially settles on the bottom of the crankcase and evaporates sharply at the next start.

Icing of the drain. This problem is one of the most common. Due to frost, the water flowing out of the indoor unit through the drainage system freezes, and its excess begins to spill out onto the floor of the room. Full-fledged operation of the split system in such conditions is impossible.

If the equipment is working normally, but the outgoing air is not heated, you should wait a little. It takes time to increase its temperature. In order for the efficiency of the air conditioner operating for heating to be higher, it is necessary to follow a number of rules:

• Make sure that a layer of ice does not build up on the outdoor unit;
• Use a special winter kit that makes the operation of the equipment easier;
• Regularly clean the units from dust;
• Carefully choose a place for installing the outdoor unit: if it is closed from wind and moisture, the operation will be more efficient.

If the outdoor unit is not protected from snow and ice, you can equip a special visor. It will prevent the formation of a heavy cap on the surface of the equipment and extend its service life.

Which Air Conditioners Can Work in Winter?

Inverter models are mainly suitable for operation in sub-zero temperatures. This type of control allows you to smoothly adjust the power of the compressor located in the outdoor unit, as well as the fans. This increases the efficiency of the equipment and makes it more resistant to low temperatures. The cost of such models is significantly higher. The list of non-inverter air conditioners is very small, and they can only work at temperatures around zero. In addition, such split systems must be equipped with:

• A spiral compressor;
• An outdoor unit defrosting system (such defrosting occurs according to a special algorithm that is effective even at low temperatures);
• A large depth of the outdoor unit heat exchanger and a large pitch of its plates.

Wrapping It Up

Using an air conditioner for heating in winter is not only possible but also convenient, especially in regions with a moderate climate. Modern inverter models cope with the task of heating economically and efficiently. The main thing is to choose the right device, taking into account the area of ​​the room and temperature conditions. To be sure of the quality of the equipment, entrust the installation to professionals. Reliable air conditioning installation from Tytum in San Diego will help you create a comfortable microclimate in your home all year round.