Wiring of blower motor
#1
07-24-00, 09:04 AM
I'm trying to hook up a new blower motor(same specs as original). And of course my luck, I have too many wires. I have black, Blue, Red, & White on the new motor and on the the air conditioning unit I have 3, white(2) -red(1). Which one can I by-pass? I know the white definitly has to be hooked up. Black is High, Blue Medium, Red is Low. Is this dangerous to not use one. Do I just cap the dangling wire or what?
Thanks!!!
Thanks!!!
#3
07-24-00, 10:22 AM
quote:<HR>Originally posted by MrRonFL:Thank You for repling so quickly! It's working! Now I'm assuming the High Med Low is the speed, How does that work? It doesn't seem to be working any faster than before.
I'd cap off the red (low) speed wire. The low speed on the original motor is normally during heating, and if the med speed on the new motor turns out to move the air too fast for heating you can always switch the two leads.<HR>
I would think the hotter it is inside- the faster the blower would work correct or incorrect?
Would this be a result of the capicator being a 5 vs the old a 10?
Will the heater work if the red(Low) is not connected?
#4
07-24-00, 06:42 PM
The actual speeds in the motor come from power being applied to different sets of windings inside the motor (or different points in the same winding; there's a lot of different designs) On most blower motors, the capacitor is mostly to give it a kick to get it going. Newer motors generally start with smaller caps than the equivelant motor of 30 years ago, it's just a change in design philosophy.
Your old motor was a 2 speed motor, your replacement was a 3 speed. Your current hook up uses the medium speed for what was served by the low winding on the old unit. High speed is a pretty standard number, usually around 1050 to 1600 rpm.
Unless you have one of the high effeciency systems, you have one speed for cool and another for heat. The make sytems that shift speeds, but they are usually closer to top of the line.
Your old motor was a 2 speed motor, your replacement was a 3 speed. Your current hook up uses the medium speed for what was served by the low winding on the old unit. High speed is a pretty standard number, usually around 1050 to 1600 rpm.
Unless you have one of the high effeciency systems, you have one speed for cool and another for heat. The make sytems that shift speeds, but they are usually closer to top of the line.
