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Post by coldspaces on Oct 31, 2015 3:58:38 GMT
Two nights ago I adjusted the expansion valve one turn to increase the superheat. The system now shuts off at about 2 psi (-10) Run times have been anywhere from about 2 1/2 to 4 1/2 minutes. Off times 14 1/2 to 18 1/2 mins. Looks like the control might be a bit inconsistent as the doors have only been opened a few times during the last two days. Cabinet was running about 27 F. Turned it warmer a notch and will see what that does.
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Post by coldspaces on Feb 27, 2016 5:19:27 GMT
Partly due to the overcrowding in my garage I finally got around to rewiring this Coldspot last week. It will be moving into the house soon and I wanted to finish the work on it first. Going to the basement, wife said no on her kitchen. You shouldn't drop 80+ year old fan shrouds unless you want to sweep the floor. Luckily it didn't bend it up. Here it is with out the motor. sense the paint was already coming off of the base i did not try to wash the unit. I gave it a good balsint with compressored air instead. didn't get it all but it is so much cleaner. After looking inside the end bells of the motor I decided I was going to want to blow the dust out of the inside. I really did not like the idea of taking the motor apart but after examination I could see the centrifugal switch on the shaft would come out with the rotor and not damage the start switch if I was careful. Also important I did not have to unhook any of the old hard wires going from the switch to the motor wingdings. So I got brave and cleaned the fan end of the shaft and pulled it apart. I left the compressor end bell alone and did not take it off the shaft. Here are some pics of things before I blew the dust out.
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Post by ckfan on Feb 27, 2016 5:46:17 GMT
I really do like the "internals" of this coldspot. There can't be hardly any left. That motor sure was dusty! It will look nice in your basement.
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Post by ChrisJ on Feb 27, 2016 13:03:17 GMT
Wait What?
Is that a GE control!?
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Post by coldspaces on Feb 27, 2016 14:19:04 GMT
Wait What? Is that a GE control!? Yes it sure is chris, we wondered if you had noticed it or not. Motor is also GE. I sealed the open bearing to keep dust out and blew out what I could with compressed air only. Here are a couple more of the control.
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Post by ckfan on Feb 27, 2016 16:17:44 GMT
I didn't notice that control. That's cool to see that on another brand. Makes sense because they already used a motor from GE. I don't know if you mentioned this previously but I was wondering if the compressor is specific to the cold spot brand. It looks like a simple and robust design.
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Post by coldspaces on Feb 28, 2016 13:31:41 GMT
This Coldspot uses a capacitor during starting only. I opened the capacitor box to rewire and found a nice metal housed 135 mfd capacitor. I was expecting something sealed in the tar like stuff. The capacitor tested about 150 mfd when I checked and might have worked indefinitely. But there was something I notice as soon as I saw the top of the capacitor. One side of the power is directly hook to the metal housing of the capacitor. The only thing keeping it from shocking you if the plug is reversed is a layer of insulating paper. A look in the repair manual tells that these Coldspots were known to shock you with stray voltage if the electrolytic leaked onto the paper. You can see a modern start capacitor in the top right of the first pic. It has no metal housing and is what I used. I filled the extra space around it with foam board so it won't move and touch anything ever. Also soldered the wires onto the capacitor so they will never get a bad connection. This will be much safer than the original. Unit also has a polarized plug now. It didn't even have a piece of paper across the bottom.
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Post by ckfan on Feb 29, 2016 20:51:10 GMT
Wow, that old capacitor looks really safe... Glad that you replaced it! Curious that it was still showing good though. I guess it was well built if not safe.
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Post by coldspaces on Mar 2, 2016 17:58:40 GMT
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Post by coldspaces on Mar 2, 2016 18:07:31 GMT
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Post by ckfan on Mar 2, 2016 19:08:30 GMT
That is a great looking machine. Fantastic work! I hope your wife likes it!
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Post by coldspaces on Mar 27, 2016 18:45:55 GMT
Well the Coldspot is officially the first antique refrigerator to be allowed to live in the house. Couldn't talk her into using it in the kitchen so it lives in the basement now. Top was to empty so I arranged a few collectibles. Dairy things are from my Grandfathers dairy.
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Post by ckfan on Mar 27, 2016 20:08:40 GMT
I really like the look of it. Especially the logo. Cute polar bear. I miss how manufacturers would actually spend time designing a neat logo.
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Post by ChrisJ on Mar 28, 2016 0:26:06 GMT
Is that actually drawing 300+ watts when it's running or is that volt amps?
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Post by coldspaces on Mar 28, 2016 1:48:21 GMT
Is that actually drawing 300+ watts when it's running or is that volt amps? Sorry that's just an old AC volt only meter I got at a flea market a while back. Its just sitting there for show and not hooked up. It does still work and I have been advised that there were not many like it made.
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