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View Full Version : copeland reman dmrh750ewm help



tait71
30-04-2013, 09:17 PM
hi i need some help with the wiring of the above compressor for D O L running, it is a reman and came with no wiring diagram i think it is now wired in star formation it runs but hot and it stalls sometimes in mid run pulling 20a per phase,it is wired like this


u v w

x y z



3 phase going to u,v,w and x,y,z linked together( im not cleaver enough to draw it on here!)
oh and by the way its not really maked up with anything just 6 bolts sticking out the top of the comp body in 2 rows! helpful!:mad:

cadwaladr
30-04-2013, 09:34 PM
you dont get long before its curtains if its wired wrong

tait71
30-04-2013, 09:45 PM
what is the diffrence between star and delta?

Brian_UK
30-04-2013, 11:17 PM
what is the difference between star and delta?
About £1,000.00 ;)

10324