Advantages of square duct ventilation fans
①Suitable for lower installation heights, and the motor is designed to be overturned for easy cleaning;
②Small size, high efficiency High, energy saving and environmental protection;
③ low noise, long service life, suitable for bad weather;
④ outer rotor motor, SKF bearing.
Advantages of circular duct ventilation fans
①Using external rotor motor, stable operation and long life;
②Backward curved impeller Design, large air volume, high efficiency;
③Surface spray treatment, strong corrosion resistance.
Advantages of split duct ventilation fans
①A wider range of applications;
②Larger air volume and lower noise;
③Optimize the wind wheel – scientific air duct design, optimize the structure of the wind wheel;
④Excellent motor, quiet operation, long-lasting quality and longer life.
Advantages of metal duct ventilation fans
①Using a large wind wheel design, the air volume is larger at the same speed;
②Ultra-thin machine Body, beautiful appearance;
③ strong fire performance;
④ excellent performance.
Duct Exhaust Fan Installation
When a ceiling is installed where the ventilation fan is installed, and the ceiling stop is Use a ducted ventilating fan to use its higher wind pressure to exhaust air. During installation, you can use soft materials to fill the gaps. You can customize an aluminum alloy frame, punch a few bolt holes, and pinch the ventilation fan. The exhaust hole is punched according to the size of the fan. Each side is 2 cm (20mm) larger.
Ducted Fan Installation Steps
1. Build the wooden frame and install the wooden frame to the ceiling joists. Enclose and install the main body in a wooden frame, and fix it firmly with self-tapping screws (4 pieces).
2. Install the pipe on the air outlet, and then lock it with a rubber band.
3. Enclose the main body and install it in the frame.
4. After turning on the power, check whether the following abnormal phenomena occur.
5. Insert the fixing spring into the groove and install the panel on the enclosed main body.
Precautions for installation of ducted ventilating fans
The dimensions of ducted ventilating fans should conform to the building modulus coordination standard.
A dedicated grounded socket or switch should be set near the duct ventilation fan, and the position of the switch should be considered for easy operation; linkage switch, delay switch or human body induction switch can be selected as needed.
The ceiling duct ventilation fan should be installed on a solid ceiling and connected to the ceiling firmly. If necessary, a rubber pad can be placed to reduce the noise caused by vibration. When the ceiling is installed, the indoor net height should not be less than 2.2m.
The pipeline of the duct ventilation fan cannot be bent within 0.5 meters from the interface; there cannot be more than two large bends less than 90 degrees in the whole process; the pipeline should not be reduced in diameter in the middle, otherwise it will affect the air volume. , wind pressure and motor life will be affected; the angle should not be less than 120 degrees during the bending process, otherwise it will affect the air volume, wind pressure and motor life.
Cleaning method of duct ventilation fan
After the duct exhaust fan runs for a long time, the air volume and effect will be affected by the blockage of the filter screen due to dust and dirt. Clean it once a week, inject oil into the oil filling holes on the front and rear covers of the motor, and often use a soft cloth dipped in detergent or soapy water to scrub the fan frame and fan blades. Avoid scrubbing with liquids such as gasoline and alcohol that are corrosive to plastics and gold chips.
When cleaning the exhaust fan, be sure to unplug the power plug (if there is no plug, cut off the power supply). The removed casing should be cleaned with warm water and detergent. Wipe the fan blades with a slightly damp cloth, but Do not get the fan blades wet, then wipe the case clean and reinstall.
Duct exhaust fan cleaning method
1. Remove the exhaust fan, wrap the sawdust with cotton yarn, or directly wipe the sawdust with your hands, the thicker the grease, the more Easy to wipe off, rinse with clean water after wiping, and then assemble.
2. Remove the exhaust window blade, soak it in warm water, add a few drops of detergent, add 50 ml of vinegar, soak it for 15~20 minutes, and wipe it with a clean rag, i.e. The grease can be wiped clean.
Cleaning Tips for Duct Exhaust Fan
1. Exhaust fans and electric fans turn yellow, check for greasy, and remove if necessary. First wipe with oil (neutral detergent for kitchen), then scrub with clean water, dry, and then wipe with a cloth dipped in glazing agent, you can see that it is bright and clean.
2. The electric fan has been used for a long time, and there will be many rust spots on the metal protective cover, which are difficult to remove. But if you use a rag dipped in some washing powder and water on the cover, and then dipped in some talcum powder to wipe the rust spots, the rust spots can be wiped off quickly.
3. Daily cleaning tips: first dry the cleaned duct exhaust fan, then use a cloth to coat the entire exhaust fan (fan blade and frame) and surrounding areas with a layer of detergent . When you need to clean the exhaust fan again, just use a little water and a little detergent. Then wait for the duct exhaust fan to dry before applying a layer of dishwashing liquid, and you can easily clean it next time.
