Thread Number: 82021  /  Tag: Classified Ad Finds
NOS Fridge Compressor
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Post# 1060413   2/12/2020 at 22:28 by Launderess (Quiet Please, There´s a Lady on Stage)        

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Now here's something you don't see that often....

Post# 1060469 , Reply# 1   2/13/2020 at 14:27 by goatfarmer (South Bend, home of Champions)        

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Just curious, what makes that vintage?

Post# 1060491 , Reply# 2   2/13/2020 at 18:25 by DaveAMKrayoGuy (Oak Park, MI)        

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I agree, it's a thin-line between an exterior top-mounted compressor, and then going to that!

-- Dave

Post# 1060495 , Reply# 3   2/13/2020 at 19:21 by turbokinetic (Northport, Alabama USA)        

That round shell design looks like a Whirlpool compressor. With the extra lines on the housing, that would indicate it had an oil cooler coil inside, where refrigerant would exit the compressor pump, go through part of the condenser; then back through a coil in the base of the compressor sump. From there it would cool the oil and the motor. Then, the refrigerant would go through the rest of the condenser and complete the cycle.


This design was common on low temp / low backpressure designs such as freezers. There is not enough pressure and density on the returning refrigerant gas to cool the compressor, when running in a vacuum as these low temp units do; therefore they needed the oil cooler design.


I bet John L (Combo52) can identify it positively.

Post# 1060518 , Reply# 4   2/14/2020 at 07:56 by combo52 (Beltsville,Md)        
Replacement Refrigerator or Freezer Compressor

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This compressor is probably from the 80s-90s it is a piston type unit with the shell being on the low side of the system.


It certainly could have been used on many Whirlpool refs and other brands as well, WP used a lot of this brand compressor after 1984 when they stopped building the wonderful Whirlpool-Seeger rotary compressor in their larger refs.


It has has two oil cooler connections as David noted, usually if the compressor was used with a condenser fan blowing over the unit you did not have to use the oil cooler loop, but with a static condenser you needed this loop to keep the oil cool enough.


These were reliable compressors but probably not as long lived as what are being used now, this compressor still draws 250-300 watts compared to just 100-150 watts for a similar capacity compressor today, all that additional heat to disperse is what ruins frost-free refs from the 60s into the 90s and is why relatively  few FF refs from this time period have survived when you consider they made about 300 million of them in this country.


John L.

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