Original message
| HVAC1973 | "York air handler to Trane heat pump condenser" , posted Sun 4 Nov 11:07:  
Hi guys. New here and have a quick question. My general area of knowledge is hydronics but I have a heat pump question. Replaced a York condenser with a Trane XLi unit last week. 3 ton unit. York air handler inside with 11.3 KW coils. My question is about low voltage wiring between condenser and air handler. R,W,G,Y,O,X,B are all obvious connections at the air handler. However I have 3 other terminals labelled 66, 60 and 53. For no aux heat the air handler has a jumper between these three terms and 66 becomes W. I'm at a complete loss with this as this is NOT my area. Any help or manuals you could point me to would be most appreciated.
Thanks. K
[this message was edited by HVAC1973 on Sun 4 Nov 11:08] | | Replies:
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| Houston204 
| "Re(1):York air handler to Trane heat pump con" , posted Sun 4 Nov 13:20  
"Tip of the Day" Remember to remove power first.
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| | hvac1973 | "Re(2):York air handler to Trane heat pump con" , posted Sun 4 Nov 13:58  
Thanks for this. Do you have a york schem. that show these other two terminals 60 and 53? I wish I had more info to give but I couldn't even get a model no.off of the air handler.
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| | Houston204 
| "Re(3):York air handler to Trane heat pump con" , posted Sun 4 Nov 17:12  
No, I only have a few York fancoil manuals and I checked them all.
"Tip of the Day" Remember to remove power first.
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| | hvac1973 | "Re(4):York air handler to Trane heat pump con" , posted Sun 4 Nov 20:03  
Ok. Thanks a bunch for your help. Going to call york directly tomorrow. Was just hoping to get a head start. Thanks again.
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| | Houston204 
| "Re(5):York air handler to Trane heat pump con" , posted Sun 4 Nov 21:03  
It should be noted that you risk voiding compressor warranty with a mismatched system like yours. This is doubley so with a heat pump.
"Tip of the Day" Remember to remove power first.
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