What does the hotel central air conditioning sun mean?

The sun icon indicates the heating mode.

Central air conditioning icon symbol meaning:

1, central air conditioning snowflake icon

The snowflake icon indicates the cooling mode, which is usually used in hot weather to reduce the indoor temperature to a comfortable temperature. When the switch display shows snowflakes, it means that the air conditioner is currently cooling.

2, central air conditioning sun icon

The sun icon represents the heating mode, which is mainly used in cold winter. When the indoor temperature is very low, you can use the heating mode to warm the room. When the sun icon is displayed on the display screen, it means that it is in heating mode.

3, central air conditioning wind speed sign

Fan icon indicates air supply, and there are three modes: small wind, stroke and strong wind. When it is turned on, it will suck air from the outside and blow it into the room, which will play a role in ventilation.

4. Water drop icon

Denotes the dehumidification mode of air conditioner, which mainly makes the dew point of indoor air reach the critical value by lowering the temperature, so that the excess moisture in the air can be analyzed and dehumidification can be achieved.

5, central air conditioning triangle icon

This icon indicates automatic mode, and the air conditioner will operate according to the mode set by the manufacturer. In this mode, the temperature of the air conditioner cannot be raised or lowered.

Heating principle

The low-pressure gas sucked by the compressor is compressed into high-temperature and high-pressure gas by the compressor, and the high-temperature gas raises the water temperature through the heat exchanger, and at the same time, the high-temperature gas will condense into liquid. Then the liquid enters the evaporator for evaporation, and the evaporator must have heat exchange medium. Different machines have different models and structures according to different heat transfer media. Commonly used are air cooling and ground source.

After the liquid passes through the evaporator, it becomes low-pressure and low-temperature gas, and the low-temperature gas is sucked by the compressor again for compression. In this way, the circulating water on the air conditioning side will become hot water of about 45-55 degrees. The hot water is sent to the room that needs heating through the pipeline, and the room is equipped with a fan coil unit, so that the hot water can exchange heat with the air to achieve the purpose of heating.