If you're currently lacking a stand alone fan and you've got a spare furnace blower fan lying around, you might be in luck. First, you'll need to know a little bit about furnace fans and how they operate in order to properly complete the conversion from furnace fan to stand alone fan.
Furnace fans are comprised or a few basic components:The impeller actually draws the air in using specifically designed blades, much like any fan. It relies on suction pressure to properly move air. This is one of the key aspects you'll need to understand when constructing your fan.
The motor of a furnace fan can come in several different horsepower, ranging from about 1/6 to 1. More important is the speed of the motor. Furnace fans can have anywhere from 1 to 4 speeds, depending on the make, but you'll want to operate at the lower speed or speeds for your stand alone fan, unless you are in the mood to blow your pictures off the wall. These speeds are represented by color-coded wires. White is the common or ground, then progressively from lower to higher speeds the colors normally go red, blue, yellow and then black. Last, you'll want to make sure this motor can operate using 140 volts, which will be indicated on the motor. This will ensure that you can plug it into your standard outlet.
The plenum is really just the chamber that the air flows through. It's a pretty simple component and shouldn't need any more instruction other than nothing should be lodged inside the plenum, or it will prevent proper air flow.
Allowing Proper Suction PressureAs noted earlier, proper suction pressure is key in the operation of a furnace fan. What you'll want to do is secure some type of material such as a sheet of metal to the hole by the impeller, blocking about 90% of the hole. This will create the optimal atmosphere for suction pressure. If you want to make it aesthetic, I would suggest using a skill-saw to cut a 3" hole in the center of the sheet metal and cover the hole with chicken wire, or some other caging to prevent body parts or debris from entering the impeller. If you do use sheet metal, make sure that the edges are ground down to prevent inadvertent cutting of people or furniture. You can secure it with screws, which will keep it adhered and prevent the metal from chattering.
Blocking/Modifying the Outflow PortYou will also want to use chicken wire or another type of caging to prevent body parts or debris from entering the outflow port. As it is, the fan will blowing uni-directionally in a small area so you may also want to construct a cone to disperse the air in a broader pattern. One example would be to use a small cone and a common household vent port to disperse multi-directionally.
WiringElectricity can be a dangerous element if you aren't careful. Before tampering with any electrical device always ensure that there is no power being supplied to it. In order to divert the wall socket power supply to the motor you will need a wall plug. Cut the wall plug wire at the desired length. Now comes the hardest part of the hole project, potentially. You will need to decide whether you would like to run at the lowest speed or, optionally, run at two different speeds. If you require two different speeds, you will need to purchase a switch and secure the white wire (ground) to the ground connector and then assign the red wire (low) to one connector and the blue wire (high, or higher), to the other connector. Additional speeds can be used but are not required for household applications. After this you would connect the plug wiring to the switch, or if you are working with only one speed, you would splice the red and white wire to the plug wires, ensuring you are insulating properly with electrical tape.
Additional OptionsAdditionally, you might want to attach a handle to the top of the furnace blower fan or even build a casing for the fan for aesthetic purposes.
In most cases the blower motor resistor is the solution. But you need to have a repair shop check it out before you buy something that you may not need.
Remove the wiring harness to the heater blower fan. Remove the retaining bolts. Remove the fan from the blower. Reverse the process to install the new heater blower fan.
The blower fan motor is worn out.
engine fan or heater blower fan?
the blower fan resistor has gone bad.
How do you replace a fan blower resistor on a vauxal Corsa?
Leave the fan on and put a clutch under the fan,than if you have a turbo connect the fan blower to the turbo
access the blower fan from the engine compartment, passengers side, on the firewall, about the easiest blower motor to replace I have ever encountered.
The purpose of the blower in a fan is to increase the speed of the airstream with its rotating impellers. This happens because the blower contains and directs the air to where it is needed.
the blower fan resistor is located in behind the glove compartment to the left of the blower motor. you have to remove glove compartment to get at resistor.
Where is the heater blower fan located 1996 honda accord?
The blower fan motor is located under the hood on the left side in a Ford E150