Bathroom - a room in which differences in humidity and temperature levels regularly occur. They negatively affect the biological background, which is manifested in the development of fungus and mold. The main way to deal with such processes is to install a fan with a humidity sensor. For the bathroom, special models of the device are available, provided with protected enclosures and remote controls.
The principle of operation of the device
The operation of the fan is regulated by a special switch, the commands for which come from the humidity indicator (sensor). Some models are provided with a timer with the option of delayed shutdown - an average of 1 to 30 minutes. The humidity detector, in turn, can be configured for a light-optical response, in which the fan will automatically turn on and work for a certain period of time after each light switch off in the bathroom. When choosing a bathroom fan with a humidity sensor and a timer, it is important to pay attention to the ranges in which it can be automatically controlled.
The standard corridor of humidity indicators varies between 40-100%. If the actual current humidity coefficient in the room exceeds the established optimal indicator, then the device will go into operation until the microclimate is normalized. In this mode of autonomy, the fan will function regardless of the inclusion of light or timer readings.
Structural design
The base for the body is usually made of high-quality plastics, like a moisture-resistant ABS alloy. Mandatory is the presence of splashproof panels, which in some devices can be replaced, focusing on the textured design to match the interior. The working filling of the bathroom fan with a humidity sensor can be performed in two versions.
- Axial construction. The mechanism with a propeller located on the central axis. Accordingly, during the torsion of the blades, the air flows in the axial direction. Such models are characterized by simple execution, quiet operation, as well as high throughput.
- Radial design. For propellers of this type, the blades attached to the axis have a shape bent at a certain angle. The working mechanism is placed in a metal casing, and during the movement of the air flows move around the body in a radial direction. The advantages of this design include high power, but it also leads to noisy work.
As for energy supply, typical models work from a regular household network. The fan performance for a bathroom with a 220 V humidity sensor is about 100 m 3 / h at a power of 15 W.
Reviews about the model Electrolux EAFM-120
Budget, but rather productive device costing about 2 thousand rubles. The device has an impressive duct diameter (120 mm), provides an air intensity of up to 195 m3 / hour and has a power of 20 watts. Users note the merits of the built-in check valve, which prevents both debris and unpleasant odors from entering the room. The operability of the bathroom fan with the EAFM-120 humidity sensor is also not satisfactory - the mechanism functions properly at peak loads without reducing speed. There are claims to molding the plastic housing, but in the front part it can be replaced with a panel of another material with similar parameters.
Reviews about the model VENTS 125 Quiet
Mid-range offer up to 3 thousand rubles. The diameter of the duct is 125 mm, and the productivity is 185 m 3 / h. At the same time, the noise level is slightly higher than that of the previous model - 32 versus 31 dB. Also, the weaknesses of this fan include a narrow threshold for automatic operation in the range of 60-90%, the lack of a light switch (only optional) and a high lower level of activation by timer from 2 minutes. What compensates for these shortcomings? Positive impressions are mainly related to the design. In the bathroom, a fan with a humidity sensor 125 Quiet TH can be installed in a variety of schemes in the wall and ceiling. Installation is facilitated by a shortened nozzle that fits a wide range of ventilation shafts and ducts. A check valve is also provided, which eliminates backflow and minimizes heat loss during the operation of the propeller.
Reviews on the model Soler & Palau SILENT-100 CHZ
The device, more likely, belongs to the premium segment, having wide functionality. At the same time, the productivity of the model is average - only 95 m3 / hour. On the other hand, the noise level corresponds to a whisper of a person at 26 dB, which eliminates the slightest sound discomfort during operation. Users themselves indicate the sensitivity of the hygrostat of the device. In the reviews of the humidity sensor for the bathroom fan, the SILENT-100 CHZ version emphasizes the flexibility of its settings, ergonomics and accuracy of operation at the slightest microclimate fluctuations. The advantages of the device include low power consumption - not more than 8 watts. The durability of the design is designed for 30 thousand hours of work, so you can rely on several years of trouble-free operation of the fan.
Device installation
When choosing a place for installation, it should be possible to access the nodes of the device and the lack of interaction with other climatic equipment. To create conditions for maximum ventilation efficiency without interference, it is desirable to position the device as high as possible - at the level of 2-3 meters, but so that the distance from the ceiling is 20-30 cm. It will not be superfluous to focus on the maximum capture of the most polluted points in the room. Installation of a bathroom fan with a humidity sensor is carried out according to the following instructions:
- A hole is made in the wall corresponding to the size of the fan nozzle. It is advisable to avoid possible changes in the design of the pipeline.
- If the duct leads the channel directly to the street, it will be important to ensure the pipe slope towards the facade so that precipitation does not penetrate the structure.
- Fastening is carried out by complete hardware - with screws, mounting brackets or self-tapping screws, depending on the wall material.
Ceiling installation is generally carried out according to the same scheme with the creation of a hole in the ceiling. The main thing - before installation, provide that the outlet channel has an outlet outside, and not in the attic or overhead space.
Connect the device to the network
After the installation of the housing, electrical work is performed. To connect a bathroom fan with a humidity sensor and a timer, it is necessary to prepare the attachment points and cable entry. Using the terminal blocks (should be included), the cable is led to the fan. The main connection loop is fixed with special fasteners to the device design. In the course of electrical activities, it is important to consider the compliance of the wiring parameters of the local network. As a rule, humidity fans are provided with double electrical insulation, so grounding is not necessary.
Conclusion
The quality of the fan and the accuracy of the sensor readings will depend on the maintenance of the device during operation. Experts advise regularly cleaning its surfaces by removing the external panel. Care is carried out with a microfiber cloth with mild cleaning solutions without abrasives. In addition, a bathroom exhaust fan with a humidity sensor is periodically checked for traction.
For this, a special device is used - an anemometer. It reflects the speed of air flow, which should be compared with regulatory indications. An easier way is to bring a piece of paper to the fan’s working panel, checking its clamping force. If during such tests deviations in the operation of the device are detected, the design is disassembled and maintenance is carried out with repair operations. It is better to trust similar works to the service center.