What is the purpose of a squirrel cage in a furnace?
What is the purpose of a squirrel cage in a furnace?
The main use of a squirrel-cage motor in a home HVAC system is that it powers the blower fan. If you have a forced-air heating system, such as a furnace, and/or an air conditioning system, the squirrel-cage motor is the part that turns the fans that blows the heated and cooled air through the ventilation system.
Who invented the squirrel cage fan?
Alexander Sablukov
Where is the squirrel cage on a furnace?
The type of fan which is located inside your furnace, is a forward curve, otherwise known as a squirrel cage. The tips of the blades are inclined in the direction of rotation.Mar 19, 2018
Which way do squirrel cage fans spin?
clockwise
How do you know which way a blower wheel goes?
Use the hands of a clock for reference. If they're tilted toward Clockwise Direction, as in the picture to the left, then you have a Clockwise Forward Curve Blower Wheel. That's the direction the blower wheel will spin or operate, and that's the direction of the intended air flow, as well.Dec 4, 2018
Can you reverse a squirrel cage fan?
Also, you can't run a squirrel-cage blower backwards and expect it to reverse the airflow direction. Those things depend on centripetal force, and that runs in the same direction (from spindle to outer edge) regardless of which way the thing is turning.May 26, 2004
Which way should a centrifugal fan spin?
In these examples, the correct direction of rotation is clockwise as viewing the fans from the inlet side (as shown currently in the Figs). Using these fans in the opposite direction from that shown here will result in an increase in the fan's power consumption, fan noise and also the air volume it moves. Fig.
How does a squirrel cage blower work?
A squirrel cage blower, also known as a centrifugal blower, is used to move air and gases in a variety of applications. ... This action imparts a centrifugal force to the air, causing it to move radially outwards to the walls of the blower or fan housing.
Which direction should a squirrel cage fan turn?
The fan wheel rotates clockwise or counter-clockwise, with the small forward-curved blades scooping the airflow and slinging it out as the wheel rotates. It is designed to move high-volume airflow with very little static pressure.Jun 28, 2019
Can you reverse a blower motor?
Things You'll Need Some furnace motors have the capability to reverse the direction of rotation. When replacing a reversible motor, it is important to get the motor turning in the proper direction or the air will not blow. You can reverse the direction in two ways, either with internal wiring or external wiring.
How do you reverse rotation on a blower motor?
https://www.youtube.com/watch?v=-xcbYfs3SKE
What happens when a centrifugal fan runs backwards?
PD Sure running a centrifugal fan backwards will not reverse the direction of air flow. That is if it was set up to force air into the bin, it will still force air into the bin. Just will not move as much air. You are still spinning that air around.Dec 20, 2015
What type of fan does a leaf blower use?
The Construction of Leaf Blowers A blower is a centrifugal fan, which is a mechanical device for moving air in a direction at an angle to the incoming fluid.
What are the types of fans and blowers?
These blade designs include forward-curved, backward-inclined, backward-curved, radial-tip, and airfoil fan blades. As for the general types of blowers, centrifugal and positive displacement blowers are the most common.Apr 16, 2020
What are most fan blades made of?
The most common material for commercial fan blades is metal (aluminum or steel) or plastic (polypropylene). Yet some companies are also producing fans using nylon textile and fiberglass-reinforced polyester.