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Author Topic: Compressor motor wiring  (Read 11022 times)
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« on: July 09, 2002, 12:58:37 pm »

Does anyone know where I might find a wiring diagram for the compressor motor on my Gullwing?  The motor is a Westinghouse 1/4 hp. 1725 RPM  60 cyc. 110V   3.8 amp.
The power cord and the wiring from the thermostat to the motor are both melted and have broken away from the motor connections.

Also, can anyone provide some insight on overhauling the actual compressor unit (cleaning, lubrication, common parts that should be replaced during a rebuild)?
Thanks,
Bryan
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johnieG
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« Reply #1 on: July 10, 2002, 03:39:04 pm »

have you got a picture of the terminal side of the compressor?
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« Reply #2 on: July 10, 2002, 08:18:08 pm »

This is a westinghouse compressor is it simular to yours?
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Spoon-feeding Newbies since 2001...Wink
Yeah..220,221 whatever it takes.
Remember, all it needs is a shot of Freon!
The Vendo V-83 is the '59 Edsel of the coke machine world. ;p
Spray painting does NOT restore a compressor
11 is louder than 10...
"Hope" is good, but it's not an action plan.
Guest
« Reply #3 on: July 10, 2002, 08:52:11 pm »

Thanks, JohnieG.  Here it is.

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« Reply #4 on: July 11, 2002, 08:04:00 pm »

OK can you back the camera up and give me a angled side shot, and is there a start cap on the side of the motor?
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Spoon-feeding Newbies since 2001...Wink
Yeah..220,221 whatever it takes.
Remember, all it needs is a shot of Freon!
The Vendo V-83 is the '59 Edsel of the coke machine world. ;p
Spray painting does NOT restore a compressor
11 is louder than 10...
"Hope" is good, but it's not an action plan.
Guest
« Reply #5 on: July 11, 2002, 10:33:31 pm »

Not sure what you mean by start cap.  The start button is on the thermostat unit.
Here's a better photo.
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« Reply #6 on: July 12, 2002, 08:12:42 am »

Working on memory here...so bear with me I'm attaching a generic drawing of a mechanical compressor layout, please note that not all of the components may be present on all systems. (I've only seen the gut's of a gullwing once, and don't recall if there's a evaporator assembly & fan in the soda cabinet, or if like an Ideal slider, the evap. coils are part of the side wall of the cabinet) hope this help you in sorting out you wiring, you might have to call Eric at Global Compressors and ask if he's worked on one of these puppy's, any one in the peanut gallery worked on one lately? '<img'>
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Spoon-feeding Newbies since 2001...Wink
Yeah..220,221 whatever it takes.
Remember, all it needs is a shot of Freon!
The Vendo V-83 is the '59 Edsel of the coke machine world. ;p
Spray painting does NOT restore a compressor
11 is louder than 10...
"Hope" is good, but it's not an action plan.
Jim
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« Reply #7 on: July 12, 2002, 02:20:50 pm »

Bryan,

Can you see a model number anywhere on the Westinghouse unit?
Secondly, in the photo, I can see three terminals, two are bright and clean meaning they where in use. The third may not have been used and looks to be like a ground, is this correct?

I have old Westinghouse frigeration material that I could post but I want to get the closest version of refrigeration unit to ensure proper wiring!

Lastly, is this picture of the compressor? If so, have you cut the freon lines to remove the unit...?

Johnie, excellent diagram!
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My six cents,

Jim

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« Reply #8 on: July 12, 2002, 03:19:25 pm »

Jim,
Here is the info on the belt driven compressor unit:
Refridgerator Unit Part No. 64346
Model A1 4FH
1/2# freon charge

and the info on the electric motor:
Westinghouse 1/4 hp
1725 RPM  60 cyc.
110V   3.8 amp
40 deg. C, hours (Continuous)
Serial# FK    Style 956628A  Open

"Secondly, in the photo, I can see three terminals, two are bright and clean meaning they where in use. The third may not have been used and looks to be like a ground, is this correct?"
There were some connectors with wire remnants attached to all 3 terminals, but the power cord and thermostat/start unit weren't connected.

"Lastly, is this picture of the compressor? If so, have you cut the freon lines to remove the unit...?"
The photo is of the motor/fan only.  The compressor freon lines haven't been cut, the cold line was connected to the cooler with a compression fitting.
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« Reply #9 on: July 12, 2002, 06:29:18 pm »

Bryan,

Unfortunately, I don't have any info on this type of refrigeration system...
Looking more indepth at JohnieG's diagram and it seems to be accurate.

Essentially, the thermostat is controlling the electic motor that runs the compressor and condensor fan. The evaporator fan should run al the time. The only confusing part may be whether or not you have a start relay... Do you know if the unit has one? It will look like a little box with three or possibly four terminals on it.
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My six cents,

Jim

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