Does the central air conditioner use liquid nitrogen?

Liquid nitrogen for central air conditioning.

Central air conditioning generally refers to one or more cold and heat source systems and several air conditioning systems. The principle of central air conditioning refrigeration is realized by using liquid nitrogen gasification to absorb heat, and then provide the cold air needed for refrigeration for the corresponding air conditioning system, and finally reduce the indoor temperature. The heating system uses the air conditioning system to provide the heat needed to improve the indoor temperature, and finally realizes the improvement of the indoor temperature.

Maintenance skills of central air conditioning;

First, the air conditioner should be thoroughly cleaned when it is turned off for a long time. After cleaning, just turn on the fan of the air conditioner to run for about 2 to 3 hours, blow dry the inside of the air conditioner, and then cover the air conditioner with a dust cover.

2. For units with more air conditioners, professional air conditioner cleaning companies should be invited to clean the surfaces of outdoor and indoor heat exchangers of air conditioners every 2 to 3 years, so as to improve the heat exchange efficiency of heat exchangers and achieve the purpose of energy saving.