Ceiling fans are useful in summers as well as winters. In summer, they help circulate air and also facilitate evaporation of sweat from the skin thus cooling the body. In winter they pull cold air up and push warm air down and at low speeds, the wind-chill effect is eliminated.
When fully assembled, a typical ceiling fan weighs between 15 and 50 pounds. Many junction boxes can support that weight while the fan is hanging still. But when it is in operation, it exerts many additional stresses like torsion to the object from which it is hung and this can cause an improper junction box to fail.
Installing a ceiling fan by dismantling a ceiling light is something that is very commonly done. This is probably because most DIY ers don’t know that this can be dangerous as well as it is illegal as per the National Electrical Code to do this. Homeowners are required to upgrade junction box to one that is meant particularly for ceiling fans before installing them.
To install a new fan from a ceiling that didn’t previously have any electrical fitting, you must drill a hole through it. Its okay if a joist is in the way of the hole as the junction box can be installed through it instead of between joists. From the main receptacle, you will need to pull new wires (live, neutral and ground) through a new circuit breaker.
The electricity supply should be cut and to make sure there isn’t any residual energy, check with a circuit tester. The mounting bracket has first to be installed to the junction box securely using nuts and screws. A hanger pipe, the motor hub and blades are parts of the fan.
There are two ways to install a ceiling fan. You can first attach the blades to the motor hub and the hub to the hanger pipe and mount the whole thing up by connecting the pipe to the mounting bracket. You can also install the pipe first and then attach the hub and the blades. However, the first way is better if the gap between the blades and the ceiling is very small.
Installation of the above parts can be done as per the manufacturer’s instructions. Vibrations from the motor can make screws come loose. Using washers will prevent this. Covers for the ceiling hole and the motor are sometimes provided. Before connecting the motor hub to the hanger, these should be looped onto the pipe.
After the pipe and the motor are mounted, the fan has to be wired then switched on and tested. If blades are not balanced properly, they can cause the fan to wobble. Interchanging blades so they balance usually fixes this.
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