Hello All, I have a Trane XE 800 A/C unit. Model Number is TTJ724A100B0. My a/c condenser fan motor seized and I found a replacement. It is a Century OTR 4513. My old fan motor did not have a capacitor mounted on it like the new one does. My old motor is a GE 5kcp29ck4629s. The old motor has a purple wire which goes to the capactitor and a brown wire which also goes to the capacitor. The capacitor is mounted on the AC unit. The 3rd wire is black and it goes to the top of the of the AC. All was well. I received the new motor and it has the capacitor mounted on the motor itself. A brown wire and a brown/white wire go from the inside of the motor to the capacitor mounted on the motor. That leaves me with a purple wire and a black wire. I know where the black wire goes, but the purple wire, I do not know. The purple wire on the old motor went to the a/c mounted capacitor. This new purple wire can go there, but there is no brown wire for the other side of the a/c mounted capacitor. Any help would be appreciated. I will upload some photos.

 

If the old capacitor is a dual capacitor (also has a Herm terminal) connect purple the same place that it wen on the old cap and black goes to the same place it went on the contactor. The 2 brown wires connect to opposite poles of the new cap.

If the old cap only has 2 sets of posts discard it and use a wire nut to connect the new purple wire to the wire that feeds power to that post.

 

The link to the picture below is for the black wire (Existing)

https://www.facebook.com/photo.php?f...6&l=909f3a7e9a


The link to the picture below is for the existing purple and brown wire (bottom right of picture)

https://www.facebook.com/photo.php?f...6&l=eb9c840c83

If you could take a look, I would greatly appreciate it. If not, thank you for the help you have already given me.

 

Your pics are not coming up.

 

Hey all and Houston204,

This is the black wire at the top of the ac unit




This is the purple and brown wire (and red wire) at bottom right of picture
These are the original wire locations. So with the new motor, all I have is purple and black. It will be cleaned out.

 

Your new motor will be the 4 wire and your old motor was a 3 wire.

Your new black connects where the old black went and the new white (or yellow) connects to the brown/red wire

 

The new motor only has a black and purple wire. The brown and brown/white wire comes from the motor and goes directly to the capacitor mounted on the motor Itself. The old motor had black, brown and purple. I will get pics.

 

I'd say sub your purple for the white wire in the diagram.

If you are going to post pictures I would like one of the diagram that I see in your picture.

 

Old and new. See how the brown and brown and white wire go straight to the capacitoron the new one?



I can only use 2 wires--black and purple--


New motor wiring diagram


Thiis the old one's wiring diagram

 

Connect your black to the location that the old black hit the contactor.
Connect your purple to the location that the small brown wire with red stripe that is on your capacitor hits the contactor.

The 2 brown wires on your new motor connect to the new cap.

 

Good morning. I cannot find a small brown wire with red stripe. I am looking at the pics and have gone out to the ac unit. I will hook the black to where it used to go and I will keep looking for the brown annd red wire.

 

Houston204,
Could you give me a land mark for the small brown wire with red stripe? And are you saying that the purple wire will hook into the contactor in the area of the black wire's location?

 

From the wiring diagram on the new motor (in your picture), it looks to me like the black and purple wires on the new motor connect to exactly the same locations that the black & purple wires on the old motor connected to. The capacitor is pre-wired to the new motor, so all you should need to do is connect the black & purple wires.

 

Bob14525--Thank you Sir..that did it. We have ac again..I appriciate it more than you will ever know.

Houston204--I can't thank you enough for all your help. Thanks again

 

Did you remove the old fan motor capacitor?