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Member Since 04 Jan 2006
Offline Last Active Jul 21 2015 08:20 PM

Posts I've Made

In Topic: Sub Zero 632-S S/N prior to 1810000

15 July 2015 - 12:59 AM

Allheights:   Good call, but condenser is sparkling clean and fan is running nicely. 


Samurai:  You are correct, as always, parallel systems in the condenser, so it is confined to the freezer circuit.


Thanks guys.  I appreciate the attention.

In Topic: Sub Zero 632-S S/N prior to 1810000

15 July 2015 - 12:55 AM


Well, like I said at my blog post on this topic...


Do you have a link to the spec sheet you're using for this compressor?


<<Well...yes, but I was trying to spare the grunt work of going through the spec. sheets.



RSIR (resistive start inductive run) just means that the compressor is capable of running without a run cap, not that a run cap is prohibited. The run cap is probably optional for this compressor. 
Where did you get this compressor model as the replacement?
<<Sub Zero.  They list the current replacement as a 7002026, which is an Embraco EMI60HER, which is also a Tecumseh TPA1380YXA, which winds up being an Embraco FF10HBK.>>
Also, remember: we are technicians, not engineers. We do not write design specifications; we determine whether or not components are operating within given design specifications. If the original design did not include a run cap, don't add one. We do not do field design modifications without specific instructions from the manufacturer. Although you may have a perfectly valid technical reason to do so, it also opens you up to liability if something goes horribly wrong because you altered a UL-approved design-- insurance will not cover you in this situation nor should it. 
<< I appreciate that concern, but in this instance, it is my own unit, so I see no future in suing myself.  Actually, I'm way too busy screwin' myself with home repairs that never seem to stop. 
In any event, I deeply and sincerely appreciate your time to post.  I was just concerned about the benefits of a Run cap., but since the specs. do not call for it, I should perhaps take the wisdom of your last paragraph and not redesign the system. >>


In Topic: Sub Zero 632-S S/N prior to 1810000

14 July 2015 - 05:04 PM

Well......I thought I was done with the Run capacitor questions, but the new compressor (Embraco FF10HBK) arrived and it makes no mention of one.  Further research on the various charts of Embraco specifically omit a Run cap for this unit.  I realize it's a RSIR motor, but after reading Samurai's analysis on the benefits of a Run cap, I'm kind of scratching my head as to whether this would be a good addition, or would it fly in the face of the mfgr's specs and cause more problems?

In Topic: Sub Zero 632-S S/N prior to 1810000

12 July 2015 - 12:04 AM

Like Willie, I have never seen a run capacitor fail short. 




Thanks guys.  I guess you can add me to the list that has never seen one fail.  I changed it out and received the same symptoms.....3.3A running load after about an hour.  I will do anything to get out of a compressor change, but I guess I'm boxed in at this point.  I can't seem to come up with any other escape routes. 


I thank you for your time and replies.  Off to the salt mine.

In Topic: Sub Zero 632-S S/N Prior to 1810000 Freezer Comp.

06 July 2015 - 10:40 PM

I thank you, sir.   That is a huge help.



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