There are three types of ventilation fans: indoor, kitchen and bathroom. Three different types of ventilating fans have different requirements when they are purchased.
1. The bathroom is usually small, with an area of about 2-4 square meters, and an open ventilation fan of 150-200 mm can be used.
2. A 250mm screened ventilation fan can be used in the kitchen. If a range hood is already installed in the kitchen, the ventilation fan may not be installed.
3. The area of the bedroom and living room is usually about 12-16 square meters, and the two-way ventilation fan of 250-300 mm is more suitable.
The following criteria can be used as testing standards for the selection of ventilating fans:
1. The ventilating fan has a novel appearance, the color is harmonious with the room color, and the plane has no warping appearance. The plastic is flat and lubricated, the electroplating parts are bright, there is no trace of rust spots, and the fan blades can rotate normally.
2. After the power is turned on, the fan blade rotates smoothly, there is no abnormal noise, and the air volume is large. The two-way ventilation fan can be changed freely. The temperature of the motor is not high and the noise is small. The speed regulation of the ventilation fan with the speed regulation function is obvious, the capacitive motor is not more than 65%, and the cover plate type is not more than 80%.
Precautions for installation of ventilation fans
The ventilation fans must be firm and strong during installation, and the distance from the ground should be more than 2.3m;
ventilation fans The distance between the roof and the roof must be more than 5CM;
The ceiling ventilation fan should not be installed in a place with a lot of oil smoke and dust, and should not be installed near a high temperature source;
The wall type with electric fan can be used for ventilation in various places, and can also be used for oil fume extraction;
Before the installation of the ventilation fan
1. Before the installation of the ventilation fan Carefully check whether the machine is intact, whether the bolts of the fasteners are loose or falling, whether the impeller is bumped, and carefully check whether the fan blades or louvers are deformed or damaged during transportation.
2. When selecting the air outlet environment, it should be noted that there should not be too many obstacles within 2.5-3M opposite the air outlet.
When installing the ventilation fan
1. Stable installation: When installing the ventilation fan, pay attention to the horizontal orientation of the fan, and adjust the fan to be consistent with the ground plane. After the ventilation fan is installed There should be no skewed appearance
2. When installing the ventilating fan, the adjusting bolts of the motor should be in a position that is convenient for operation, so that the belt of the ventilating fan can be adjusted during use.
3. When installing the ventilation fan bracket, make sure that the bracket is level with the ground plane, and if necessary, install angle iron beside the ventilation fan for further reinforcement.
4. After the fan is installed, check the airtightness around it. If there is an open space, it can be sealed with a solar panel or glass glue.
The installation of the exhaust fan is completed
1. After the installation is completed, check whether there are leftovers and sundries inside the ventilation fan. Use your hand or a lever Toggle the fan blade to see if there is any appearance of over-tightening or rubbing, and whether there are any objects that hinder the transformation and no abnormal appearance, before trial work can be carried out.
2. If the ventilation fan oscillates or the motor has “humming” abnormal movement or other abnormal phenomena during work, it should be stopped and checked, and then turned on for use after correction.
Summary
As for the installer, before installing the ventilation fan, it is necessary to determine the position of the device. This position requires attention to the operating environment. See where the specific device is most suitable, so that the exhaust fan can achieve the best use. When installing, pay attention to whether each fastener is installed tightly, so as to ensure the normal and safe operation of the exhaust fan.
When installing the exhaust fan, special attention should be paid to the stable installation. The exhaust fan should be placed in a stable horizontal position, and the exhaust fan should also be installed in an easy-to-operate position for daily use. .
