Have HVAC Questions? Ask an HVAC Expert for Answers
Let me see if I have a wiring diagram.Tell me where other motor wires are connected
Black is HIGH speed. Usually goes to COOL. Do you have a HEAT and a COOL terminal on board?
Is there currently a wire to each?
Or is there a jumper from Heat to COOL?
The motor wires are as follows:Black =High
Orange =Med Lo
Red = low
Depending on heating and cooling requirements the speeds are selected using different colors.If your system need same speed for heat and cool only one speed wire will go to The COOL terminal with a jumper between HEAT and COOL.
If you need different speeds for heat and cool, the jumper is removed and one speed wire to each of the terminals.
There are only 2 park terminals for unused speed wires so the extra has to be taped off.
You can remove the jumper and place the black on COOL and Orange on heat if you want two different speeds for heat and cool. See diagram below
If you have further questions, please let me know.
Thanks for letting me work with you.If my answer has been polite, professional,and thorough, please click one of the ratings before you go. If you still need help let me know!.Expert is not paid for assisting you until you rate answer.Feel free to follow up for 30 days at no additional cost. Bonus always appreciated if you feel justified.
To rate answer, please select one of the stars below.