Stainless steel coil tubes: how fan coil tube to work
The fan coil tubes mainly relies on the forced action of the fan to heat the air when it passes through the heater surface, thus strengthening the convection heat exchanger between the radiator and the air, and can heat the air in the room. The fan coil tube’s unit is the terminal device of the air conditioning system, and its working principle is the constant control in the unit.
The air in the room is cooled (heated) after passing through the cold water (hot water) coil to keep the room temperature constant. Usually, it is sent to the room after being processed by the fresh air unit to meet the needs of fresh air volume in the air-conditioned room.
However, because this heating method is only based on convection heat exchange, which makes the indoors unable to reach a suitable level of comfort, it is only suitable for places where people stay for a short time, such as offices and hotels, and not for ordinary residences. The maintenance and management of the equipment is also more complicated due to the increase of the fan, construction cost and operating cost.
Fan coil tubes control mostly adopts local control scheme, which is divided into simple control and temperature control. Simple control: use the three-speed switch to directly manually control the three-speed conversion and start-stop of the fan. Temperature control: The STC series thermostat automatically controls the opening and closing of the STV series electric two/three-way valve according to the comparison and calculation of the set temperature and the actual detected temperature; the three-speed conversion of the fan. Or directly control the three-speed conversion and start-stop of the fan, so as to achieve the purpose of constant temperature by controlling the water flow or air volume of the system.
As the terminal equipment of the air conditioner, the quality of the fan coil tubes’ unit determines the indoor air conditioner. The performance is mainly to guarantee the amount of cold (heat) delivery, the guarantee of air delivery, the numerical ratio of noise, the non-leakage of condensate, and the rationality of the design of electrical appliances and sheet metal parts.
