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06-02-2013, 04:13 PM #1
Danfoss Compressor NL6F - no capacitor ok?
I've recently ordered replacement electrics (PTC starting device) for a Danfoss NL6F compressor. The old PTC device - 103N0021 made use of a capacitor on the start winding, however the replacement - 103N0011 has no terminal for a capacitor, and it doesn't show a capacitor in the danfoss wiring diagram.
Does this mean the compressor will run ok without a capacitor?
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06-02-2013, 07:37 PM #2
Re: Danfoss Compressor NL6F - no capacitor ok?
http://www2.renkulde.no/MKDokume.nsf/C322B3DE9C098D08C1256C2B0041CCB2/$FILE/NL6F_R134a_220V_50Hz.pdf
data sheet shows a capacitorLast edited by install monkey; 06-02-2013 at 07:39 PM. Reason: hyperlink doesnt work, right click on web address and hey presto
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06-02-2013, 11:40 PM #3
Re: Danfoss Compressor NL6F - no capacitor ok?
If you look on the data sheet, there are two drawings. One labelled HST (which includes a capacitor) and the other labelled LST. I have the starting device shown in LST diagram which shows no wiring of a capacitor. I thought this was odd, but then again, I don't work with integral a very often.
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06-02-2013, 11:47 PM #4
Re: Danfoss Compressor NL6F - no capacitor ok?
Actually, just found the answer for myself in this documentation.
http://utenti.multimania.it/cariafra...%20Danfoss.pdf
Turns out you don't nessecarily need a capacitor in systems where the pressures equalises.
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07-02-2013, 12:03 AM #5
Re: Danfoss Compressor NL6F - no capacitor ok?
make sure the pot is off for 2-3mins to ensure system pressures equalize when off on stat
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07-02-2013, 07:26 AM #6