How to install extractor fan in bathroom, wiring diagram for
The contents
The ventilation system in the house is an important component. Without good ventilation in the bathroom appears unpleasant smell, mold and fungus that can adversely affect the health and life of man, which reduces the service life of plumbing fixtures and washing machines, and they lead to the destruction of the walls.
If you do not wish to breathe the musty air and to deal with black mold on the walls, then you must install the extractor fan in the bathroom. It is in the house most «wet», here, I pressed the condensate on the surface of walls, mirrors, plumbing and furniture. In the absence of good ventilation, moisture builds up and spoils the finish of the entire room, forming bad smell and mildew stains.
Video about the extractor fan in the bathroom:
Natural and forced ventilation ↑
Depending on the specific conditions in the house there are natural and forced ventilation. Natural ventilation lay more in the design of the building – in areas with ventilation provides for special channels to be displayed in the attic. Such vents are laid out with bricks or use special plastic pipe.
Tips for installing a natural extract in the bathroom:
- single duct to be used for one room;
- ducts better to design vertically;
- if the bathroom, toilet, kitchen and sauna are located on the same floor, then combine the extracts in a single channel;
- the combined channel should be doing as smooth as the hood melonoma and air don’t interfere – no protrusions, no sharp turns. In that case, if no bends cannot be avoided, then make it smooth with a radius of not less than 10 cm.
If you constantly fog up the mirrors on the walls of the condensate settles and the room is damp, your ventilation system is not working properly. To test the functionality of the ventilation duct bring to the lattice of vozduhotehnika lit match – if it is damped or pulled to the bars, then the ventilation is all right. And if the match remains lit, poorly responds to traction, the ventilation is the problem. In such cases, install a forced ventilation system. You need to install it if work natural extracts are ineffective or she has failed, and repairing it impractical. Also, this hood is appropriate, if the bathroom you plan to install electrosun.
You should pay attention that the installation of the hood in the bathroom you need to provide a gap under the door (with thickness up to 2 cm). It is possible to install a grate (sold at hardware stores or made yourself), you can also buy a door for the bathroom is already provided by the grid. Without the clearance, the efficiency of extraction will be equal to zero.
When you install a forced ventilation system of the bathroom there is a fan. To date, manufacturers offer a wide range of fans for bathrooms, differing in shapes and sizes, but the same principle. Experts advise to buy the axial model fans with power removal 60-250 cubic meters of air per hour.
Some characteristics of ventilation fans ↑
Appliances designed for bathrooms, have a high protection class against humidity. Indicate them by marking and IP number. The higher the number, the higher the level of protection of the appliance. Recommended to choose the model marking not lower than IP 34.
Modern exhaust fans for bathrooms is equipped with a motion sensor, that is, the system is switched on only if somebody in the bathroom is. Humidity sensors are also embedded in the device, automatically include the system if it increases the amount of water vapor in the air. In some models of fans integrated timers that regulate the operating time of the system. Automaticity allows devices to save energy. But whatever the modern was not the ventilating system, no one has come up with an absolutely noiseless models. However today produces models that work quietly and do not cause irritation in humans. If you believe that your hood is quite noisy, it is possible to install a special muffler or the upper part of the ventilation duct to decorate with sound-absorbing material.
To avoid the ingress of air from other rooms is set the vent hood with non-return valve. Often this system is used in multi-storey buildings.
Installation of a hood in the bathroom with their hands ↑
Installation of the exhaust fan is not difficult and time-consuming process. But it is better not to entrust the installation to a man who had no experience with circuit boards, and to entrust this work to specialists.
Installation of a hood in the bathroom involves several stages:
- cable laying;
- the extension of the duct (as required);
- connect the hood to the mains;
- installation of a hood to the ventilation duct;
- blown in foam of empty space;
- as necessity – filler (only if the hole size larger than the size of ventilation grille).
Carefully consider the selection scheme of connection of the exhaust fan, after remodel it is not always possible and appropriate.
To date, manufacturers of fans offer a variety of ways to connect to the mains. Often it is the switch, mounted in the housing of the extrusion, as a rule, the cord is hanging from the housing. Pulling for him, you turn on or off the device. But if you install a fan under the ceiling, such switching is inconvenient.
The following method of turning on the unit may occur along with source of illumination – when the light extractor is activated at power – off. This method has disadvantages – the fan may not be able to renew the air for the time that included the lighting, at night visiting the bathroom, irritating fan noise can Wake the household.
Another method of connection – series switch. At the entrance to the bathroom install this kind of switch – one key will be responsible for the switching of lighting and exhaust fan. The diagram below shows how to do it.
When laying the wiring, it is important to follow safety precautions. Before you begin, make sure the electricity is off. Connecting the contacts of the wires, use a special connection, they make the contact more reliable. To place of installation, ventilation guide copper wiring. To conceal the wires run in a plastic box. Connecting the device to mains power, you can begin to mount the fan. To do this, carefully follow the instructions for the hood. Basically the sequence of mounting the fan like this:
remove the fan cover; - at the point of attachment of the device to the wall apply silicone or polymer clay;
- insert the fan into the hole and press it for a few minutes to the wall and secure with screws front cover.
If you are self-confident and decided to connect the extractor fan in the bathroom on your own, then stick to the simple tips:
- installing a cooker hood is recommended to make under the ceiling, opposite the door. This location of the exhaust fan raises the quality of his work as a natural air circulation will help in the operation of the fan;
- the effectiveness of the ventilation will improve the flow of air from one side of the bathtub and out on the other hand, the close location of input / output;
- a fan placed in the vent, if it is narrow, use a grinder or hammer and chisel, and Vice versa if the diameter is more than necessary, then pick up a plastic pipe or corrugation to the desired diameter and insert the extractor into the hole;
- to increase the level of sealing and noise reduction set a layer of sealant based on silicone;
- after the installation of the fan must be fixed «liquid nails», special fasteners, screws or dowels. If you’ve installed it correctly, the outside will see only the ventilation grille and the fan will be located in the opening;
- for connection to the mains you must install a separate switch or a switch with two keys. Is irrational to connect the hood to the same switch that turns the light on;
- the mounting ends mounting the ventilation grille (it is secured with latches or screws).
Problem bathroom airing easily solved by installing a ventilation system is the only way to effectively air the room, because the bathrooms do not put the window. In addition, modern automatic ventilation system is very easy to use and allows the rational use of energy. Selection and installation of a hood in the bathroom is not a difficult process if you take into account the above information, it is not necessary to have seven spans in a forehead to buy and install exhaust fan.