Central air conditioning is an air conditioner in which a host computer connects multiple terminals through air pipes or hot and cold water pipes to control different rooms and realize indoor air conditioning. Using duct air supply mode, a host computer can control many different rooms and introduce fresh air, which can effectively improve indoor air quality and prevent the occurrence of air conditioning diseases. The most prominent feature of home central air conditioning is the comfortable living environment. Secondly, from the aesthetic point of view and the best use of space, the use of home central air conditioning makes indoor decoration more flexible and easier to achieve various decorative effects. Even if you don't like the original decoration and redecorate it, the original central air conditioning system can be in harmony with the new decoration as long as it is slightly modified. Therefore, domestic central air conditioning is called a one-step choice that never lags behind. Household central air conditioning (or household central air conditioning, single-regulation central air conditioning) refers to air conditioning that generates cold (hot) source by outdoor machine and then supplies cold (hot) to each room. Which belongs to a (small) commercial air conditioner. Household central air conditioning is divided into air system and water system. The air system consists of outdoor unit, indoor main unit, air supply pipeline, air outlets in each room and regulating valves. The water system consists of outdoor unit, water pipeline, circulating water pump and the end of each room (fan coil unit, surface mounted, etc.). ). The characteristics of home central air conditioning are: 1 The whole family is in a comfortable state, which avoids the human discomfort caused by other split machines; 2. The decoration is good, and there is no exposed pipeline in coordination with the decoration; 3 simple operation, automatic operation and no maintenance; 4 according to the orientation and function of each room, the air supply (heat) can be increased or decreased; 5 can increase fresh air and humidification, and keep the indoor air fresh and hygienic. The limitations of home central air conditioning are: 1 layout: design and installation should be combined with decoration to achieve good comfort and decorative effect; 2 power requirements: the power load is large. Old houses should consider whether the circuit load is enough.
Classification of main components:
1. According to the medium used to bear indoor heat and humidity load, it can be divided into:
1. Total air system 2. Full water system 3. Air-water system. cooling system
2. According to the concentration of air treatment equipment, it can be divided into:
1. Centralized 2. Semicentralized
3. According to the source of air to be treated, it can be divided into:
1. closed type 2. Dc type 3. Mixed type (primary return air and secondary return air)
The main equipment consists of air conditioning host (cold and heat source), air cabinet, fan coil unit, etc.