What is the fan coil unit and its working principle
The central air-conditioning fan coil can be divided into two rows and three rows according to the number of pipes: there are two and four controls: two controls, that is, ordinary fan coils are cooled by cold water in summer and heated by hot water in winter; four The control fan coil is mostly used in some luxurious places, which can take hot and cold water at the same time, that is, some rooms can be cooled according to needs, and some rooms can be heated. Two rows of pipes are one pipe for cold water in summer, one pipe for cold water, one pipe for hot water in winter, and one pipe for hot water; three rows of pipes are two pipes for water, one pipe for cold water, and one pipe for hot water. Pipe out of water.
The fan coil mainly relies on the forced action of the fan to make the air be heated as it passes through the surface of the heater, thus strengthening the convection heat exchanger between the radiator and the air, which can quickly heat the air in the room. The fan coil is the terminal device of the air conditioning system. Its working principle is to continuously recirculate the air in the room where the exposed air duct is located. The air is cooled (heated) after passing through the cold water (hot water) coil to maintain the room temperature Of constant. Usually, it is sent into the room after being processed by a new fan unit to meet the demand for fresh air volume in air-conditioned rooms.