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20-07-2015, 06:37 PM #1
1933 Monitor Top restoration + compressor pics
Hi Guys,
I posted questions about this compressor a few years ago and finally finished the unit and put it into use.
Here's a quick video of the restoration as well as a decent recording of what it sounds like running. Microphone was about a foot or less from the compressor. In person you almost can't tell when it's running. When I was timing it's cycles I had to get up and stand right next to it to make sure it was still on a few times.
https://youtu.be/y2LWjT3e7uQ
Here's a link to what it's oscillating type compressor looks like. This isn't one of mine as none of mine have been opened, but is an identical model that a friend cut open as it was seized and couldn't be broke loose electrically.
https://plus.google.com/photos/10115...CLeA7Y_ZqZS8MA
Here's a short video he filmed of it running after he got things moving.
https://youtu.be/bfkNLHy9nkw
And finally, a video of him turning it by hand to show how it pumps.
https://youtu.be/gn0u7dFBCTk
The machine is mostly original except I installed a capillary tube to replace the badly worn float valve and I replaced most of the wiring. Everything else was cosmetic. It's currently maintaining around a 31-32F cabinet temp which is perfect for me.Last edited by MrTube; 20-07-2015 at 06:39 PM.
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20-07-2015, 08:27 PM #2
Re: 1933 Monitor Top restoration + compressor pics
Awesome work! I have an old Frigidaire freezer with a metermiser compressor i am planning to get working again, it still runs but no longer pumps.
Mostly found in Oxfordshire, UK :)
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20-07-2015, 08:32 PM #3
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21-07-2015, 02:29 AM #4
Re: 1933 Monitor Top restoration + compressor pics
Excellent restoration job. Frigidaire fridges and dual temps., had those rotary metermizer/ cyclimatic compressors in them here up until the late 60's. Super quiet. They had a suction connection on the side for a special connection tool. Now I am showing my age.
magoo
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21-07-2015, 04:17 AM #5
Re: 1933 Monitor Top restoration + compressor pics
The good news is I have two more CA series monitor tops to restore. My next one will be a painted cabinet with a 1934 CA-2-B16 top and I plan on doing spray foam insulation and some modifications this time around. Things will still look original, aside from the capillary tube as they all have damaged float valves, but I expect even better performance.
Right now, this unit seems to be doing 35kwh per month which isn't bad but I think I can do better especially with 3 inches of spray foam instead of the original cardboard insulation. On the next one I'm also thinking about a way to insulate the top of the evaporator from the top plate with something better than just strips of cork.
I also want to find a way to sneak the capillary tube up inside the insulated space in the top rather than in the cabinet. I suspect I can braze it to the suction line as well to pick up some performance.