How to install the fresh air system The general installation process of the fresh air system

First of all, after selecting the fresh air system according to the design drawing, a professional HVAC designer is required to draw a layout drawing according to the area, structure and other data of the house, and plan the location of the fresh air fan, the layout of the pipes and tuyeres, and the peripheral facilities.

Then the construction personnel must install in strict accordance with the design drawings during the actual installation of the fresh air system, ensure that every link of the fresh air system is installed in place, and do a good job of cooperating with the overall interior decoration.

The specific installation process of the fresh air system is as follows:

1. Connect the power cord of the host from the switch box first; When there are no special requirements for the power cord, the square circuit is used.

2. Use the screw rod to hoist the host to the designated position, which is required to be positive, flat and stable.

3. With air conditioning. The staff of the wiring pipe and other facilities communicate to determine whether the on-site pipeline is unblocked, whether the location of the tuyere has an impact on other facilities, and fine-tune the drawings.

4, the installation of the pipeline system, hard pipe every 150cm an elevator, the pipeline requirements horizontal and vertical, each joint smeared with PVC glue. Pipeline hose area, every 70cm a elevator, elevator bolts using long bolts.

5. The bottom-mounted tuyere is flush with the ceiling, and the side-mounted tuyere is flush with the wall.

6. The connection between the pipeline and the main engine; The connection between the pipeline selected for the project and the air inlet and exhaust outlet of the main engine is a variable diameter or funnel type reducer, and the seams are fixed with tin foil tape, and the requirements are: the tape is pasted flat and can not be wrinkled, the seams should be tightly glued and tight, and the tin foil joints should be fixed with cable ties.

7. Between the main engine and the exhaust outlet, according to the drawings to see whether there is an oblique tee, leave the exhaust outlet for the ventilation fan.

8.After the installation of the host and pipeline system is completed, contact the electrician at the site to determine the cable requirements and the installation position of the switch.

9. After the installation of the host and pipeline, communicate with the carpenter of the construction site, and propose the data and location of the installation and maintenance port.

10. If there is a window installation, the same will be communicated with the relevant personnel after the installation of the host and pipeline and the requirements will be tracked.

11. After the decoration of the main body of the project is completed, go to the installation tuyere and check the working condition of the host;

As the name suggests, the fresh air system is the system that brings us "new" air. Actually, this is a more popular saying, but it is relatively easy to understand. In fact, for many people's homes, especially in winter, it is important to have a fresh air system, which allows us to breathe fresh air indoors.

After selecting the fresh air system, a professional HVAC designer is required to draw a layout drawing according to the area, structure and other data of the house, and plan the location of the fresh air fan, the layout of the pipes and tuyere, as well as the peripheral facilities. In the actual installation process of the fresh air system, the construction personnel must install it in strict accordance with the design drawings to ensure that every link of the fresh air system is installed in place, and do a good job of cooperating with the overall interior decoration.

According to the installation design drawing of the fresh air system, the first is to install the main engine, the main engine is generally installed in the ceiling of the balcony, kitchen or bathroom, and the installation position of the main engine is selected in the place with the least required air duct length to reduce the pipeline resistance. The main engine should be fixed firmly, so as to avoid loud operation, and the lower ceiling should use a movable roof or leave a maintenance opening.

Pipeline installation using PVC pipeline, its service life and the same as the building, pipeline every 150cm an elevator, pipeline requirements horizontal and vertical, each joint smeared with PVC glue, to ensure the reliability of the pipeline connection. Pipeline hose area, every 70cm a elevator, elevator bolts using collapsed long bolts. Although the pipelines of the fresh air system are more complicated, these pipes are hidden in the ceiling after the decoration is completed.

The connection between the pipeline and the host: the connection between the pipeline selected by the project and the air inlet and exhaust outlet of the host is a variable diameter or funnel type reducer, and the seams are fixed with tin foil tape, and the requirements are: the tape is pasted flat and can not be wrinkled, the seams should be glued tightly, and the air leakage should not be leaked, and the tin foil joint should be fixed with a cable tie.

The exhaust air outlet is installed on the ceiling of the bathroom and kitchen, and the indoor air enters the main engine through the exhaust outlet, and then enters the flue through the main engine. The fresh air vent is small, beautiful, and does not take up space, and is installed above the window in the living room or living room, so that fresh outdoor air can enter the room. In the installation of the tuyere of the fresh air system, it should be noted that the height of the same tuyere in the same hall and room should be consistent, the arrangement should be neat, and the horizontal deviation of the horizontal installation of the tuyere should not be greater than 3 1000.

Since the fresh air system is called a system, it means that it is composed of many components, and it is precisely because of the division of labor and cooperation of these components that the fresh air system can play their role well. Because of this, when installing the fresh air system, the installation of each component of the group is very important, when you install the fresh air system, you can take a look at my introduction above, I believe it will be helpful to you.

Generally, the newly renovated new house can not be moved in immediately, because the air contains a lot of harmful gases, at this time some people will buy an air purifier, but it can not solve all the problems in the room, but the installation of a fresh air system can solve those problems very well. So, how to install the fresh air system? The following is a step-by-step guide for you to install the fresh air system.

How to install the fresh air system - the main body of the fresh air system is installed.

1.The main engine is hoisted.

The installation position of the host is generally in the ceiling of the bathroom, balcony or kitchen, and it should be noted that it is not too long away from the air duct when installing, and the machine is best installed in the air duct, and its passage should avoid bending, so as to reduce resistance. When the main machine is installed, the boom nut should have safety and anti-loosening measures to make it firmly installed and there will be no noise during operation. What should not be noted is that the maintenance port should be reserved under the main junction box to facilitate later installation and maintenance.

2.Piping installation.

The installation of the pipeline should not have too many errors, try to keep it horizontal and vertical, and ensure that the inner diameter of the pipe is clean and free of debris. When installing, the position of the tuyere, direction and pipe diameter of the pipeline should conform to the design drawings, and the installation of the pipeline should be fixed with a support and hanger, so as not to loosen.

3.The air duct is connected to the main unit.

Generally, the connection between the air duct and the host should be connected by fireproof canvas or aluminum foil, and it should be noted that neither the fireproof canvas nor the aluminum foil can be twisted, and the tightness between the two should be appropriate. The soft connection of the return air pipe should be tightened, so as to avoid the reduction of the cross-sectional area due to the deformation caused by absorption.

How to install the fresh air system - tuyere installation.

1.Air inlet installation.

Before installing the air inlet, it is best to choose the installation location, which is best installed under the window sill or in a position that is easier to install, and never installed in a dead corner. The correct installation position can make the indoor dirty air and the fresh air form a circulation system, so that the indoor air can be circulated, and the air inlet should be firm and stable when installed.

2.Exhaust vent installation.

For the exhaust vent of the bathroom, it is best to choose the installation position above the toilet. For indoor exhaust vents, the best place to install them is above the door frame. In this way, the exhaust air and the fresh air form a ventilation circulation system, so that the indoor air can be well circulated and the indoor air is fresher.

The exhaust vent must be installed firmly, and it should be noted that the tuyere should be close to the roof or wall.

In order to make the indoor air cleaner and promote air flow, a fresh air system needs to be installed at home. How to install the fresh air system? PChouse will take you to find out.

1. To install the fresh air system, you must first choose the location of the host, which is generally selected on the ceiling of the kitchen, bathroom, balcony or corridor.

2. Then install the ventilation pipe, the upper top can use the round pipe, and the lower ground can use the flat pipe, and the round pipe is better than the flat pipe.

3. When installing the pipeline, it is not allowed to have a 90-degree angle, even if it cannot be avoided, it is better to choose a 45-degree angle splicing.

4. Finally, install the air inlet and outlet place, which can be installed on the top or on the ground.

If you buy a fresh air system at home, you need to consider how to install it. How to install the fresh air system? PChouse will take you to find out.

Installation steps: 1. Pipeline punching: All the wall holes through which the pipeline passes are opened by a mechanical punching machine.

2. Hoisting of the main engine: the main engine is generally installed in the ceiling of the balcony, kitchen or bathroom, not too long from the air duct, the machine installation is best to be in direct contact with the air duct, and the machine to the tuyere or flue should minimize the bend.

3. Pipeline installation: The installation of the pipeline should be horizontal and vertical, try to ensure the levelness, and not allow too much error. The inner diameter of the pipe is clean and free of debris.

4. The air duct is connected with the main engine: in principle, the air duct is connected with the main engine by aluminum foil or fireproof canvas flange. Aluminium foil or fireproof canvas should not be twisted and should not be used as a leveling or reducer.

5. Air inlet installation: The air inlet should be installed under the window sill and easy to install as much as possible, and try to avoid dead angles, so that the fresh air and indoor dirty air form a circulation system to maintain the continuous circulation of indoor air.

6. Installation of exhaust outlets: The exhaust outlets of the bathroom should be installed on the toilet as much as possible, and the indoor exhaust outlets should be installed above the door frame as much as possible, so that the fresh air and the exhaust air can form a ventilation circulation system, so that the indoor air is always circulating and circulating, and the state is kept fresh.

If a fresh air system is installed indoors, it is beneficial to human health. How to install the fresh air system? PChouse will take you to find out.

1. On-site positioning.

Positioning of equipment, tuyere, controller, etc., and confirmation of air supply and return mode, pipeline layout, and direction.

2. Basic finishing.

Opening, slotting, frame, wall, beam, floor opening. The installation of fresh air system must be punched, the diameter of the main pipe is 150mm, the diameter of the branch pipe is about 125mm-80mm, before the installation must confirm which walls in the home can be punched, the installation hole can not be opened in the beam, pillar, load-bearing and other dangers to the safety of the building structure, if it is a new house, it is best to consult whether the property can be punched.

3. Installation of the host in the fresh air room.

The position, height and slope of the indoor unit should be correct and firmly fixed. After installing the indoor unit at the construction site, pay attention to covering the host with plastic film to prevent dust, cement, etc. from entering the host and affecting its service life.

The main engine of the fresh air system should not be installed at high temperature or directly in the place where the flame is directly touched, and the use of the filter screen and heat exchange core under high temperature will cause deformation or damage; Do not install it in a place with high humidity to avoid causing a short circuit.

4. Pipeline installation.

The air ducts are arranged reasonably to minimize the loss of wind pressure. The principle of fresh air system piping is to shorten the pipeline as much as possible, reduce the branch pipeline, and avoid complex local components, so as to save materials and reduce local wind resistance. Try to avoid right-angle installation of pipes, and use Y-shaped oblique tees to connect pipe fittings, or use two 45-degree elbows to smooth over.

5. The host is connected to the pipeline.

Connect to avoid air leakage at the joints, and take anti-vibration and noise reduction measures. In order to ensure the air volume, the length of the straight pipe section connecting the main machine should be more than 1m as far as possible, and it is best not to use the reducer pipe and tee branch pipe within 1m. The soft connection between the main engine and the round pipe, and the soft connection between the air guide pipe and the joint need to be reinforced and connected with a pipe hoop to ensure that it does not fall off and does not leak.

6. Tuyere installation.

Indoor and outdoor air inlets and outlets are installed, and the installation is firm, neat and beautiful. If the air inlet and outlet of the fresh air system are too close to each other, the outside fresh air will be discharged before it reaches the room sufficiently. The correct installation method is to try as far as possible between indoor and outdoor air inlets and air outlets, the best distance is generally more than 1 meter, and the shortest spacing should also be three times the length of the pipe diameter, so as to avoid the fresh air that has just entered the room to be discharged immediately.

7. Host controller installation.

The wiring is firm, the panel installation position is reasonable, and the process is beautiful.

8. Commissioning and acceptance.

Power-on commissioning and acceptance, confirm whether the host is running normally, whether the pipeline and the host are fixed and vibration-free, whether the pipeline connection tightness, air volume and noise are normal, and then deliver it to the customer.