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17-01-2011, 08:25 PM #1
30 something year old Carrier wiring diagrams
I am trying to locate a wiring diagram and parts list for a Carrier 38HQ134300 compressor section and a 38HQ500254 outdoor coil section. I am having trouble with the defrost cycle and really need to make the repairs. I know its old but i really don't have the money for a new one right now. Please help me if you can.
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17-01-2011, 08:47 PM #2
Re: 30 something year old Carrier wiring diagrams
Haven't found your exact model yet but it's close, any good?
http://www.docs.hvacpartners.com/idc...it/38hq-7w.pdf
edit: If you also look in this sites directory there are a lot of 38HQ files, amongst all the others, don't know what's in them but might be useful..
http://www.docs.hvacpartners.com/idc...ments/techlit/
Good luckLast edited by Brian_UK; 17-01-2011 at 08:51 PM. Reason: Added a bit
Brian - Newton Abbot, Devon, UK
Retired March 2015
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17-01-2011, 09:00 PM #3
Re: 30 something year old Carrier wiring diagrams
Thank you very much! I will look at what you sent me. My main goal is to replace the mechanical defrost circuit with a defrost board, not sure how but i'm sure there are some available.
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17-01-2011, 10:20 PM #4
Re: 30 something year old Carrier wiring diagrams
Is this like yours?, Service Call 6.
http://books.google.co.uk/books?id=e...page&q&f=false
Don't know how much but...?
http://mjbcontrols.com.au/index.php?q=node/7
Interesting idea on a different scheme for a Carrier heat pump...
http://www.gpsinformation.org/joe/HeatPump2.htmlLast edited by Brian_UK; 17-01-2011 at 10:35 PM.
Brian - Newton Abbot, Devon, UK
Retired March 2015
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