What are the issues that need to be paid attention to when using the fresh air system in summer?

1.Cleaning of air outlet and filter: When the fresh air system is running, the air outlet will absorb a large amount of dust in the air due to static electricity, which is easy to breed bacteria and affect the appearance and health.

2.Check the wind speed and host wiring: due to the dust accumulation of the air duct and the deterioration of the sealing performance of the pipeline, it will lead to uneven air volume and poor fresh air effect of each tuyere. It is recommended that professionals regularly (6 months) check the system and adjust the air volume to eliminate hidden dangers and ensure the effect of fresh air.

3.Wiring inspection of the fresh air main engine: If the wiring board of the fresh air fan is connected to the power supply for a long time, a large amount of dust will be collected or the wiring will be loose due to the vibration of the fresh fan, resulting in potential safety hazards.

4.Check the air tightness of the control panel and pipeline, and check the fresh air control switch: the fresh air control panel is a relatively precise electrical component, and long-term use will absorb dust or gather moisture due to static electricity, which can easily lead to the failure of the control panel or damage to the components, resulting in inconvenience.

The main thing is the cleaning of the filter, the metabolism of people is relatively fast, and the filter of the air outlet will absorb a lot of dust because of static electricity, which is not good for the human body.

What Yan Xiaohong needs to pay attention to is that it is necessary to check the operating status of the wind speed, and it is necessary to check the tightness of the pipeline promotion, and it is also necessary to pay attention to cleaning, and the inside of the registered host must also be cleaned and sealed, as well as the filter, because only in this way will it not cause too much dust in it, and it will not affect the normal use.

Be sure to pay attention to the temperature, pay attention to the indoor air situation, can not be put together with the smoke exhaust pipe, pay attention to the noise, pay attention to the cleaning of the inner box of the chassis, this is to ensure the cleanliness and hygiene of the chain brother, to avoid problems at work. Accompaniment.

Before hoisting, the equipment must be connected to the power supply before installation. If you need to bring your own bracket for installation, you should do a good job of anti-rust treatment of the bracket. At the same time, when the main engine and the bracket are fixed, the rubber shock absorbing block is used as a shock absorber in the middle, and the levelness of the main engine and the fixed bracket is corrected without deformation.

When installing, you need to find an electrician or a slag rolling electrician to install it, otherwise the wiring is wrong and the machine may be burned out. The wiring should be carried out in strict accordance with the manufacturer's circuit diagram such as the beam (the circuit diagram should be pasted on the cover of the electric box or the back of the fuselage), and the wiring should be correct, firm and well grounded; It should be well insulated and not exposed to the outside; It is best to use no less than flat BV wire (i.e. plastic sleeved copper core wire). Make sure to reserve an access port (not less than 45 to 45 cm) on the access board side of the new fan.

The reserved access port location should be convenient for maintenance.

<> there is no lid on it, make sure the filter can be pulled out. The layout of the air duct should minimize the loss of air volume, horizontal and vertical, the air duct should be large but not small, and the main diameter of the air inlet and outlet connecting the machine should not be less than the diameter of the air inlet and outlet of the machine. PVC pipes should be fixed with brackets and hangers.

If an eyebolt is used, its inner surface should fit snugly against the outer wall of the tube. Brackets and pipes should be fixed firmly and should not be loosened. When the PVC hard pipe is connected with the PVC pipe fittings, PVC glue and aluminum foil tape are generally used, if there is no glue, it is necessary to ensure that it does not loosen and fall off, and ensure that the joint is sealed without leakage.

The diameter of the duct. In order to ensure that the pressure loss and noise are within an acceptable range, the diameter of the home renovation fresh air system is 160mm.

After the main engine comes out, try to walk a section of 160 air duct, because the diameter of the machine is directly walked, the wind loss is large, and the wind preparation front noise will be large, the diameter of the 160 head is divided into 110mm and divided into each room, if each room is made into a branch pipe diameter of 75mm, in order to ensure the effect, more air outlets should be left. When the pipeline is arranged, avoid crossing, try to use one main, multi-branch, and tree-like structure distribution, and try to avoid the pipeline passing through the beam and crossing the space without ceiling. Try to avoid 90-degree bends (straight tees) and use Y-forks (oblique tees) or two 45-degree bends for a gentle transition.

Or use an aluminum foil hose.

Minimize local resistance by reducing the number of elbows, tees, reducers, and if necessary, use oblique tees. When the composite hose is connected to PVC, it must be sealed to prevent air leakage. The usual practice is to fix it with metal clips + aluminum foil tape.

The air inlets and outlets should be distributed on opposite sides of the room, with convection as much as possible for optimal ventilation. Many people are concerned about the problem of air passing through load-bearing walls and girders, and it should be said that this is inevitable. Generally speaking, a hole punch of no more than one-third of the beam height is sufficient.

Do not hit the top and bottom of the beam, it should be in the middle.

The first is to pay attention to frequent maintenance, the second is to replace the liquid cleaning filter, the third is to check the air tightness of the pipeline, the fourth is not to frequently start and stop the fresh air system, and the fifth is to check the wind speed and host wiring.

It is necessary to pay attention to check the wind speed and the wiring of the main engine. Check the air tightness of the control panel and its pipeline, regularly clean the filter screen of the sealing machine, and check the control panel and its pipeline to ensure that it is in a standby state.

Do not start and stop the fresh air system frequently; Air supply and return air outlets and pipes need regular maintenance; Replace the cleaning filter in time; Check the air tightness of the pipeline regularly. The specific precautions are as follows:

1. Do not start and stop the fresh air system frequently.

Frequent start and stop of the fresh air system will not only increase energy consumption, but also may damage some components of the fresh air system, affecting the service life. It is recommended that the fresh air system can be turned on 24 hours to update the indoor air quality in real time and maintain a clean and oxygen-rich state.

2. Don't go without maintenance for a long time.

The air supply and return air outlets and pipes of the fresh air system need to be maintained regularly, because in the daily operation of the fresh air system, due to static electricity, it is easy to absorb dust in the air outlet and pipes for a long time, and it is easy to breed bacteria in the long run, resulting in a decrease in air quality and affecting the life of the fresh air system.

3. Replace the cleaning filter in time.

The full heat exchange fresh air system is equipped with a filter screen that purifies the air and a heat exchanger core that allows the front and middle to be fully repentant, and these filters should also be replaced and cleaned in a timely manner. The filter screen of the fresh air system has a certain service life, and the replacement cycle should be shortened for areas with serious haze.

4. Check the air tightness of the pipeline regularly.

In the long-term operation of the fresh air system pipeline, there may be a certain air leakage, and long-term maintenance will also affect the normal use of the fresh air system. Poor air tightness is the direct cause of the decline in air volume, long-term use due to the vibration of the new fan and other reasons, it is easy to lead to the loosening of the connection of the new air duct, the phenomenon of air leakage, resulting in the decline of the use effect, there may be dirty gas remaining in the room, should be maintained in time.

If you have installed a local guess fresh air system at home, you need to know how to operate it. What are the precautions for the use of the fresh air system? PChouse will take you to find out.

1. The installation and maintenance must be operated by professional and technical personnel who are familiar with the installation and maintenance rules of the new fan.

2. Before installation, please check whether the power supply used is consistent with the power supply required on the nameplate and ensure the safety of the power supply.

3. Before use, please check and confirm whether the connection of the wires used is correct and firm to prevent accidents such as electric shock or fire.

4. Do not expose the new fan to water, humidity or corrosion.

5. Do not use corrosive or soluble cleaning liquid to wipe or clean the outer surface of the fresh fan.

6. Do not step on the new fan or place objects on the new fan.

7. Please use the source wire of the tung cover with a grounding wire to ensure that the new fan can be effectively grounded to avoid the risk of electric shock. Do not connect the grounding wire to a gas pipe, water main, ** wire, or lightning rod.

Ventilation: Establish indoor and outdoor ventilation channels, introduce fresh outdoor air, and discharge indoor dirty air.

Sound insulation: The sound insulation performance of a ventilation system is comparable to that of closed windows and doors.

Dustproof: No large amount of dust enters the room through the ventilation system.

Energy saving: The basic principle of system work is to have limited ventilation under the premise of meeting indoor air quality, and there is little unnecessary waste of energy consumption.

Nowadays, many people are talking about air quality, and the fresh air system that can improve air quality has also become a hot topic of discussion, so why should you install a fresh air system at home? Below, let's introduce it to you.

Mainly due to the fact that the airtightness of the doors and windows of modern buildings is getting better and better, the indoor air is difficult to circulate with the outside world, and the indoor air quality will be seriously reduced for a long time.

The first is that the harmful gases in the room cannot be discharged in time. These harmful gases mainly include: formaldehyde and benzene in decoration materials, second-hand smoke, infectious viruses and bacteria, etc., which will endanger human health.

With the consumption of the human body and others, the concentration of indoor carbon dioxide content increases, and the oxygen content is relatively low, and people living in such an oxygen-deficient environment for a long time can cause headaches, nausea, premature aging, and heart disease. It can be seen that indoor air quality directly affects our quality of life, and ventilation is the most direct and effective way to improve indoor air quality, and it has also become a necessary means to improve the living environment and improve the quality of life. In Europe, some developed countries have made residential ventilation a mandatory provision.

The fresh air system came into being in this environment.

The fresh air system has three basic functions that allow you to breathe freely:

The first is ventilation, which is self-evident and is the most basic function;

The second function is heat**, which is to exchange energy between the fresh air entering the room and the dirty air to be discharged from the room, so that the energy is retained while the dirty air is discharged. Through heat, the temperature of the fresh air sent into the room is close to the indoor temperature, which is comfortable, economical, energy-saving and environmentally friendly;

The third basic function, which is also facing the current foggy weather, is the filtering function. A good fresh air system can generally achieve a very high level of filtration, and outdoor inhalable particulate matter (such as various dusts, dust, soots, etc.) can be effectively filtered before entering the room.

The fresh air system can continuously discharge the indoor dirty air in time, and at the same time introduce indoor fresh air, and effectively control the air volume and increase the energy**; Create a healthy and good indoor high-quality living environment, and create a healthy and energy-saving environment for residents.

When choosing a fresh air system, we can start from the following five points to consider:

1.Fresh air system user needs.

Users must first understand their specific needs for the use of fresh air systems. If the environment is good all year round and only ventilation is needed, a one-way flow system is sufficient; If the ambient air quality itself is poor, and the family has high requirements for air quality, you can choose a two-way flow fresh air system with filtration or purification function; If you have high requirements for fresh air quality and want to save energy consumption of air conditioning, you need to choose a full heat exchanger fresh air system.

2.Decoration of fresh air system.

The installation of the fresh air system is affected by factors such as the height of the floor and the load-bearing of the beams. If the new house has not been renovated, and the height and structure allow, you can install a fresh air system, which has stable ventilation and excellent effect. If the house has already been renovated, consider a wall-mounted fresh air system.

3.Fresh air system brand quality.

The fresh air system has a long service life, which shows that the daily operation process of the brand is stable, which can not only effectively reduce maintenance costs in the later use process, but also make it more worry-free to use. There are many good products, and there are many bad ones, and what I am afraid of is not good and not laughing and slippery, and at this point Zhongshan Naxin is still trustworthy. Zhongshan Naxin has an industry-leading full range of fresh air product lines, fully covering wall-mounted, cabinet-type, and first-class fresh air series, with 100-10000m3 h fresh air volume of various mature models, seamlessly adapting to all scenarios such as homes, campuses, offices, hospitals, etc., to fully meet market demand.

4.Applicable models for fresh air system.

The model selection of the fresh air system is actually the selection of fresh air volume, which is mainly determined by the indoor area, floor height (height below the ceiling) and the number of air changes per hour, and the product of these three is the fresh air volume. If the area is relatively small but the number of residents is large, the per capita air exchange (30 m3 of fresh air required per person per hour) and the number of people are multiplied to calculate the fresh air volume. In the two calculation results, the slimmer and larger value is taken as the standard of the final fresh air volume, and then the fresh air system is selected according to the required fresh air volume.

5.Fresh air system cost estimate.

If the budget is limited, you can choose an ordinary one-way flow fresh air fan, this type of system is more economical, for 100 houses, if the budget is sufficient, you can choose a full heat exchanger with better performance and heat, this kind of fresh air system is generally twice as good as a one-way flow fresh fan.

For details, you can refer to Zhongshan Naxin's "How to Choose a Fresh Air System".