View Full Version : Emerson motor condenser wiring replacing 3 wire motor with 5 wire.
almost9
Mar 12, 2010, 01:43 AM
Any recommendations? New motor apparently is capable of running in either direction by switching brown and purple wires going to the capacitor. Looks like then either the remaining brown or purple is spliced to or hooked up to the same terminal as the yellow. Thanks.
hvac1000
Mar 12, 2010, 01:45 AM
Any recommendations? New motor apparently is capable of running in either direction by switching brown and purple wires going to the capacitor. Looks like then either the remaining brown or purple is spliced to or hooked up to the same terminal as the yellow. Thanks.
Follow the directions that come with the motor since you provided no other information to go by.
almost9
Mar 15, 2010, 04:03 PM
Thanks but the only directions were the wiring diagrams for 3/4 wire hook ups each showing cw c/cw.
I put the black on the control relay, orange and brown ones the capacitor terminals, same as the old 3 wire motor. Purple went on same terminal as the orange and yellow on brown terminal.
Works great now and I can tell it's now moving more air than the old motor.
almost9
Mar 17, 2010, 10:13 AM
I wanted to update my repair. The next morning the new motor wasn't starting. Suspected a new capacitor was also needed. While reviewing the wiring print to get the capacitor specs realized I'd misunderstood the diagram. Reconnected the right way and now working well.
Old 3 wire motor:
Black to control relay.
Orange to capacitor.
Brown to capacitor.
New 5 wire motor:
Black to control relay.
Orange to capacitor.
Purple to capacitor.
Brown and Yellow connected to each other and isolated from circuit.
dgarrigus
Aug 21, 2010, 01:20 PM
Where does the white wire go
dgarrigus
Aug 21, 2010, 01:22 PM
Where does the white wire go