00:01
Hello students, a cool and heating system uses two ducts, first duct and second duct.
00:11
One duct carries hot air and the other carries cold.
00:18
The air flow from the duct meets the mixing chamber.
00:23
So this comes into the mixing chamber and the device that actually sets the amounts of air leaving the duct is.
00:31
The device actually sets the amounts of air leaving the duct in a cool and heating system is typically called damping motor.
00:57
So the damper or damper motor, not damping motor, but damper motor.
01:03
So damper motor, what it does is that it controls the position of dampers within the ductwork.
01:13
So it regulate the air flow by opening and closing to various degrees.
01:19
So the damper motor will open and close to various degrees to control the air flow through the duct.
01:30
So the amount of hot air and cold air can be controlled because of this...