Title: What is this?
Post by: collecture on July 24, 2006, 01:39:40 pm
I was playing around with the WD-5 a little and was going to replace the T-stat / wiring and see if I could get it cooling and cycling properly.
It is all mostly a 3-wire configuration except for the part pictured below (2-wire). I do not know what it is or was, as it looks trashed.
One wire was on a post along with leads to the Evap fan, line cord and T-Stat.
The other wire was on a post with the Evap fan ground wire.
At first I thought it was a starter of some sort, but there is no connection to the compressor. I do not think the black stuff around it came out of it, but some may have. I believe the black stuff was just to keep it secure in the box next to the T-Stat.
First pic is untouched... Second is of the part removed.
Any ideas???
It is all mostly a 3-wire configuration except for the part pictured below (2-wire). I do not know what it is or was, as it looks trashed.
One wire was on a post along with leads to the Evap fan, line cord and T-Stat.
The other wire was on a post with the Evap fan ground wire.
At first I thought it was a starter of some sort, but there is no connection to the compressor. I do not think the black stuff around it came out of it, but some may have. I believe the black stuff was just to keep it secure in the box next to the T-Stat.
First pic is untouched... Second is of the part removed.
Any ideas???
Title: What is this?
Post by: johnieG on July 24, 2006, 02:05:59 pm
That my friend is a start capacitor, used to supply split-phase voltage to the evaportor fans motor 3rd wire. up in the box, you wont need it if you replace the evap' motor with a modern 2-wire unit.
(corrected)
(corrected)
Title: What is this?
Post by: Skeleton Man on July 24, 2006, 02:09:26 pm
It sounds like the motor-run/start capacitor for the evaporator fan. It's used to give the motor a 'kick start' to get it running (start capacitor), or to give it a continous boost so it takes less current to keep it running (run capacitor).
If I'm completely wrong here, someone please let me know
If I'm completely wrong here, someone please let me know
Title: What is this?
Post by: Skeleton Man on July 24, 2006, 02:10:16 pm
looks like Johnie beat me to it 
Title: What is this?
Post by: johnieG on July 24, 2006, 02:15:34 pm
This is how my wd12 is wired, instead of a capactitor, it uses a leg of the run winding to split the phase for the compressor motors 3rd wire.
Title: What is this?
Post by: collecture on July 24, 2006, 02:16:51 pm
I just found that out for myself, but it is not for the compressor. According to the manual that Timsmore scanned for all interested, it is capacitor for the evaporator fan motor. For all that have the scans, it is on page 29 (8-25 manual reference) of Chapter 8 - Westinghouse Refrigeration Units. Anyway, thank guys!
Title: What is this?
Post by: collecture on July 24, 2006, 02:29:47 pm
Where I can buy a replacement capacitor of approximately the same size to mount in the original housing. Mine is 3" x 2" x 1". I am hoping to buy an original replacement 3-wire motor, as it has unusual mounting holes on 'wings' that are 180 degrees apart.
Title: What is this?
Post by: Skeleton Man on July 24, 2006, 04:02:04 pm
| Quote (collecture @ July 24 2006,3:29) |
| Where I can buy a replacement capacitor of approximately the same size to mount in the original housing. Mine is 3" x 2" x 1". I am hoping to buy an original replacement 3-wire motor, as it has unusual mounting holes on 'wings' that are 180 degrees apart. |
You need to find the original rating either on the old capacitor or from the docs. It would be in microfarads and usually abbreviated as "µf", "uf" or "mfd".
The voltage rating is most likely anywhere from 120V to 250V (the motors might only be 120V, but usually capacitors and other components are rated at 1.5 - 2x the operating voltage as a precaution.)
My suggestion would be to check ebay