Refrigerant distribution pipeline
The function of refrigerant transmission and distribution pipeline (water system) is to transmit and distribute cold and hot energy to meet the requirements of terminal equipment or units. It is divided into cooling water system and chilled water system according to the difference of heat distribution.

Composition of air conditioning water system
Air conditioning cooling water system consists of cooling water pipe, cooling pump, condenser and cooling tower.

Classification of cooling water supply mode
According to the water supply mode, the cooling water system of air conditioning can be divided into direct current water supply and circulating water supply.

Once-through water supply system
After passing through water equipment such as condenser, the cooling water is directly discharged into sewers or rivers, and the used cooling water can be comprehensively utilized, such as production and domestic water.

The chilled water system of air conditioner consists of chilled water pipeline, chilled pump, evaporator and terminal air conditioner.

Classification of water system
It can be divided into different types according to different configuration forms, pump configuration and mediation methods.

Classification of chilled water system
According to whether the water system is connected with the atmosphere, it can be divided into open system and close system. Open system: cooling system, water and ice storage system, domestic water supply, etc.
Close system: Refrigeration and heating systems.

Classification of chilled water system
According to the backwater distribution mode of air conditioning water system, it can be divided into two backwater modes: same program and different program.
Same-journey system: where the system is large and the heat load is unevenly distributed.
Off-course system: where the system is small and the heat load is evenly distributed.