Four issues that need to be paid attention to
The choice of fan coils should be considered four factors, and the fan disk maintenance manual is used
Direct users choice of the rear fan dish pipe relationship of the central air conditioner is so important. Now I will share the four factors of choosing four factors in the fan coil of the fan:
1. The cooling capacity of the fan disk tube:
Basically, the product is calculated based on the cooling load, but the different ways of the cooling load of the fresh air fan coil will be different.When fresh air is passed directly to the indoor indoors without wet treatment, the cooling load of the cooling capacity of the indoor fan coil = load+new air;=.Cold energy currently represents all normal cooling capabilities in the market and actual operations should run the average operation time in the cold × unit time. When changing the operating time or air volume, cold will affect the input unit.Therefore, the higher the cold, the better. If the cooling unit of cooling capacity of the selected high will occur, it will be too large, resulting in the start rate too low, reducing the number of air changes, increasing temperature gradient, and increasing the systems name equipment production capacityInvestment, increased energy consumption of air conditioners, and reducing the effect of air conditioning.One is so cold as a necessary condition for an option device, and other factors should also be taken into account.
In the heating conditions (especially the geothermal system) of the fan coil, because the temperature difference between the attenuation rate of the heat transfer board is often different from the actual situation of many indicators, you need to pay attention to the choice.
2. The air volume of the wind turbine:
The general quality requirements are checked by changes in indoor air.The temperature difference between the sending air is small, the more ventilation, the better the air quality, and the more comfortable air -conditioned room. Why do some people feel that the smell and sullen air is the processing of not wind and inspection.Because the nominal wind fan coil is nowhere to be in the water and the measurement conditions of zero air pressure difference, there are some actual factors that determine that the air flow value of the actual flow rate should be deducted in this part.The amount, this part should account for 20 % -30 % of the name amount of the wind.
3. Delivery of the wind turbine tray, return to the airway:
Send, return wind.The so -called organization is reasonable or not directly affecting the air -conditioned room. Whether the air adjustment effect is good or bad, the uniformity and stability of the speed field.Reasonable air flow requires a certain air flow rate and air flow to avoid short circuit to ensure a certain length of jet.The external static pressure depends on the wind speed, the air volume, and other factors to transport exports.Excessive external static pressure will lead to a decrease in air volume, reduced range, indifferent rooms, the actual design of air distribution, and the operation status is very different in the graph.The structure of the room, depth, height, etc.In the middle, select the mid -range wind and wind speed indicator to select the appropriate fan coil model.At present, the different manufacturers of different manufacturers in the market on the market, the differences and differences of the external static pressure school accuracy. When the part of the part is installed in the dark level group, the external short -circuit catheter, the filter, the resistance value of the air grille is large.This is the determined value of the selected external static pressure. 30Pa conditions are actual orders. Some even choose the external static pressure value of a room unit 50Pa, which is greater than about 20Pas conventional resistance value. Therefore, in actual operation, to ensure good goodThe uniform field to achieve the expected effect.
4. Other factors that should be considered by the wind turbine pipe:
a.In the 40 -point decibel noise coefficient control, the noise is too large winding machine tray, and in the muffler installation processing device, the resistance value is not greater than 10Pa.
B.In the installation, high -quality structure of insulation quality, condensate water is discharged, slope, pipes, and the cleaning system.
C.The system set or vertical system set by the water system to select the vertical part of the system on the spot to better ensure the excretion of condensate water to ensure the required layer room.
The fan coil is a central air-water system equipment, which is used for air conditioning comfort.Mainly components such as heat exchangers, fans and other components.Its working principle is 2 cycle systems 2 cycles of wind and hydraulic cycle.
The air circulation unit is continuously circulated in the indoor air, so that the air temperature in the indoor is kept to maintain constant hot water through cooling or heating tray.
The central bureau circulates through the heat and cold water through the heat and cold water.
Cooling according to classification: Cold can be heated single or double -sided and used.
According to structural classification: level, vertical, wall, ceiling and ceiling.
Classification according to installation: surface installation, concealment.
It should be pointed out that the horizontal dark -fitting type needs to meet the air duct and exhaust.However, many types of pipeline fans, but these principles are almost the same functional structure.
Basic ventilation tube is two valves: two electric two and three -line cutting valves electric two -way ball.
The two -line electrical two -way truncant valve is a two -line leader, then the zero line and the opening valve wire.Since any two cables can be connected, there is no fixed connection to turn off the temperature control panel needs to be replaced.
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