Rank: Member
Groups: Registered
Joined: 3/29/2012(UTC)
Posts: 4
|
Trying to figure out the wiring to the compressor of this old unit. Has green white and black wires off compressor. Replacing relay with new capacitor relay. not sure what wire is the common wire from compressor, and not sure where to wire in the switch wire from temp control. Any ideas where to get a wiring diagram for this old unit. only model number i can find is LB7 then just serial numbers. Any help would be great, Thanks
|
|
|
|
|
|
Rank: Advanced Member
Groups: Senior Expert, Administrators
Joined: 7/19/2007(UTC)
Posts: 27,455
Was thanked: 4 time(s) in 4 post(s)
|
What is the "new capacitor relay" you are going to install? Do you have the part number of it?
Gene.
|
|
|
|
|
|
Rank: Member
Groups: Registered
Joined: 3/29/2012(UTC)
Posts: 4
|
It is a supco RCo810. Thats what i was told should do the trick.
|
|
|
|
|
|
Rank: Advanced Member
Groups: Senior Expert, Administrators
Joined: 7/19/2007(UTC)
Posts: 27,455
Was thanked: 4 time(s) in 4 post(s)
|
This hard start relay is coming with very good installation instructions. The 2 black wires with striped ends are for the incoming power. The polarity does not matter. How to find the compressor Common, Start and Run terminals? Set ohmmeter for the lowest scale. Measure the resistance between each pair of the terminals. The resistance between the Common and the Start (C-S) terminals should be higher than resistance between the Common and the Run (C-R) terminals. The resistance between the Start and the Run terminals should be equal a sum of the resistance between the C-S & C-R terminals. Quote:...not sure where to wire in the switch wire from temp control... Can you be more specific on this issue please? Gene.
|
|
|
|
|
|
Rank: Member
Groups: Registered
Joined: 3/29/2012(UTC)
Posts: 4
|
sorry I'm new to electrical issues. i am trying to say the wire from the temp control unit that sends the signal to the relay to turn on. Is this the second power wire to the relay?
|
|
|
|
|
|
Rank: Member
Groups: Registered
Joined: 3/29/2012(UTC)
Posts: 4
|
so if points a and b are3.6 , a and c are 21.7, b and c are 18.2, is b the common c the start and a run??
|
|
|
|
|
|
Rank: Advanced Member
Groups: Senior Expert, Administrators
Joined: 7/19/2007(UTC)
Posts: 27,455
Was thanked: 4 time(s) in 4 post(s)
|
Originally Posted by: mbthomas99  so if points a and b are3.6 , a and c are 21.7, b and c are 18.2, is b the common c the start and a run?? Yes, this is correct. Quote:
... i am trying to say the wire from the temp control unit that sends the signal to the relay to turn on. Is this the second power wire to the relay?... Did you do anything with the temperature control and the wires connected to it? How many wires (with their colors) do you see at the compressor? How they were connected? Gene.
|
|
|
|
|
|
Forum Jump
You can post new topics in this forum.
You can reply to topics in this forum.
You can delete your posts in this forum.
You can edit your posts in this forum.
You cannot create polls in this forum.
You can vote in polls in this forum.
Important Information:
The AppliancePartsPros.com uses cookies. By continuing to browse this site, you are agreeing to our use of cookies.
More Details
Close
