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07-09-2011, 02:09 AM #1
Powerlink inside Hussman Protocol
Hello everyone, this is my first post. Hopefully I have put this in the right section, if not, please redirect me.
Here is my question -- I am doing start up on a Hussmann Protocol for a smaller sized market. I have started these up before, but they used to use contactors for the electric defrost from the CPC boards for the coils. Now they are using a new technology I have not seen before. It is called Powerlink, and it looks to be switching polarity to run the defrost, I could be way off, I am really not sure.
Was hoping someone has had some experience with this.
Thanks,
Ryan
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07-09-2011, 09:44 AM #2
Re: Powerlink inside Hussman Protocol
Hope this helps.
ELECTRIC DEFROST
2. When the defrost relay is energized the POWERLINK™ breakers will receive a momentary charge or pulse from a capacitor in its POWERLINK™ Power Supply (PPS). The energized motor moves a push/pull rod similar to what might be found in a manual switch. A slight delay between the control circuit demand and the POWERLINK™ response will be noticed. This pulse switches the POWER- LINK™ such that the heaters are now energized. At the termination of defrost, the PPS will receive another pulse, causing the POWER- LINK™ to switch off....and she said "give it to me you big fridgie"
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07-09-2011, 06:57 PM #3
Re: Powerlink inside Hussman Protocol
not answering yr question but a question to 750 valve this power link from a capacitor does it pre charge the heaters so there is no voltage drop and less of an amp surge to the heaters when they start ? or does the capacitor charge and then when heaters are hot does it maintain the heater until the defrost finished so you dont have a large energy usage on heaters ? love the signature lol
I can fix broke but I cant fix stupid :)
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07-09-2011, 10:55 PM #4
Re: Powerlink inside Hussman Protocol
Hussman manual has some detail/diagrams in section 4-21, page 55 of this pdf file...
http://www.hussmann.com/Discontinued..._Discon_im.pdfBrian - Newton Abbot, Devon, UK
Retired March 2015
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08-09-2011, 12:31 AM #5
Re: Powerlink inside Hussman Protocol
Off topic - needed removing
Last edited by chillerman2006; 08-09-2011 at 03:49 PM.
If the World did not Suck, We would all fall off !
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08-09-2011, 07:51 PM #6
Re: Powerlink inside Hussman Protocol
Last edited by Brian_UK; 08-09-2011 at 11:25 PM.
I can fix broke but I cant fix stupid :)
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18-10-2011, 05:20 PM #7
Re: Powerlink inside Hussman Protocol
We have an auction coming up Nov 5th in Lexington KY with 4 used Hussmann Protocol units and several late maodel cases, and another auction Nov 12 of a complete grocery store should anyone need some good used refrigeration equipment links are below, Thank you
Nov 5th Lexington, KY link
http://www.globalauctionguide.com/cg...num=1316991785
Nov 12th Nashville, TN link
http://www.globalauctionguide.com/cg...num=1316992424
or see our website www.taylorauction.net
or www.auctionzip.com our ID is 1680
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18-11-2011, 08:28 AM #8
Re: Powerlink inside Hussman Protocol
Your post is Excellent guy.