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Post by Travis on Jan 29, 2016 4:53:36 GMT
Yes, that's the one I meant. The DR2 that you have is bolted though. I was trying to determine which ones were bolted together and which were welded.
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Post by coldspaces on Jan 29, 2016 5:11:20 GMT
That's correct the dr2 is a bolted dome.
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Post by Travis on Feb 7, 2016 2:45:09 GMT
My rescue mission was aborted this morning. Note to self, don't communicate about scheduling via text. I wanted to try for Sunday, but the Super Bowl is apparently more important to most people. I am hoping to go remove the doors and smaller parts to prepare for the move.
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Post by Travis on Feb 9, 2016 21:35:29 GMT
With the help of the the homeowner and three movers, we got it moved today. Much to my surprise it has a good heater! I plugged it in and waited a few hours. I couldn't stand it anymore, so I flipped the switch. The main contact would arc, but it never tried to run. I was actually happy. This means it isn't just stalled or dead. I tried to remove the control. The bellows tube is pretty well intertwined in refrigeration lines. I am thinking I will remove the bellows from the control. I did lift the control enough to see that the spring contacts need cleaning. I also found the common screw to be very loose. I tightened that, but then another contact would arc. I can only imagine what the underside of the control looks like. I did measure the motor leads for resistance. The motor is still good! If an evaporator can be sexy, these are. They're shiny Attachments:
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Post by coldspaces on Feb 9, 2016 23:29:55 GMT
Sounds good so far. May just be those contacts underneath. I hope this one behaves!
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Post by Travis on Feb 10, 2016 0:07:26 GMT
I'll take some evap pictures for Chris. They look great.
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Post by Travis on Feb 10, 2016 7:33:22 GMT
I had planned to remove the bellows from the control. Earlier tonight, I took another look at it. I realized that the bellows tube goes through the bakelite base of the control. The only way I was going to raise the control was to straighten the tube. I found many dirty contacts. I also found the signs that this unit had a type C control at one time. It's a shame it lost that, but is has neat evaps.
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Post by coldspaces on Feb 10, 2016 13:53:06 GMT
Very interesting evaps. I have never seen anything quite like them.
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Post by Travis on Feb 13, 2016 2:15:54 GMT
I have borrowed an ultrasonic cleaner and have supplies ordered. I am going to partially disassemble the control and give it a bath. I went and scrounged a couple controls from D2 units. The main contacts in my control are pretty bad.
I also encapsulated the compressor leads with heat shrink tubing and have installed ring terminals. There were so many questionable connections. I even found a bare spot on one of the wires going to the start capacitor. The bare spot was under the deck. I am not sure if it was touching anything.
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Post by allan on Feb 13, 2016 4:12:37 GMT
I have borrowed an ultrasonic cleaner and have supplies ordered. I am going to partially disassemble the control and give it a bath. I went and scrounged a couple controls from D2 units. The main contacts in my control are pretty bad. I also encapsulated the compressor leads with heat shrink tubing and have installed ring terminals. There were so many questionable connections. I even found a bare spot on one of the wires going to the start capacitor. The bare spot was under the deck. I am not sure if it was touching anything. Travis I have a good control but have you considered an ro81 just to test and see if she will start?
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Post by Travis on Feb 13, 2016 4:42:18 GMT
Allan,
I don't have any spare controls for the larger machines. I also don't know how I would wire in the capacitor/transformer block to an RO81.
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Post by Travis on Feb 15, 2016 23:23:03 GMT
It's seems I have some leakage to ground with all three leads. I did hear the run winding hum. The start winding hasn't done shit though.
Signed,
Angry, unhappy DR owner
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Post by timeswelding on Feb 16, 2016 12:42:41 GMT
It's seems I have some leakage to ground with all three leads. I did hear the run winding hum. The start winding hasn't done shit though. Signed, Angry, unhappy DR owner I'm not really familiar with the anatomy of that machine. Is a rewire possible to the glass metal leads on the bottom of the can? That could isolate the motor itself as the source of the ground issues... I think.
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Post by Travis on Feb 16, 2016 17:37:40 GMT
You can't replace the leads back to the compressor. On the DR3, there was only a 1" hole under the dome in which the 3 compressor leads and the 2 heater leads pass. This is why pulling new heater wiring is impossible in these.
Each of the leads to ground measures about 31k. You can hear a faint hum from the run winding.
On the welded units, the upper deck is open under the compressor base plate.
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Post by ChrisJ on Feb 16, 2016 17:53:41 GMT
Is there room to slide shrink tubing, or any kind of insulation over the wires? Should work ok as long as there's no sharp bends in them and assuming they are separate wires like my form A CA had.
If they're multiconductor I'm pressure sure the farm has been bought.
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