mp08
19-07-2012, 11:52 PM
New to this so hi everyone, i am an AC engineer
My problem is I replaced a compressor on a serve over fridge but I cannot work out how to wire the relay. The compressor is a Danfos SC18G.
I don't know where the Live, Neutral and Capacitors are meant to be wired.
It has 10, 11, 13 and 14 underneath each instead of L, N or C and it came with no diagram.
There is a link to the Technical Info and diagram below but it does not say which numbers stand for what.
http://www.ra.danfoss.com/TechnicalInfo/Literature/Manuals/06/sc18g_104g8822_r134a_220v_50hz_60hz_12-2011_dehc403q202.pdf
I tried it first with the Capacitor connected to 10 and 11 (the top two). The Live spade connected to 14 (bottom) and the Neutral spade going to 13 (right).
When I turned it on it tripped the mains breaker as soon as it asked for cooling.
I then tried it with the Capacitor connected to the right two (11 and 13), the Live to 14 and the Neutral to 10 (top left). The compressor ran for a few seconds then blew the breaker again, the compressor was not pumping when it ran. The next time I just switched round the Live and Neutral and it did the same but I unplugged it before it tripped the breaker again.
I have not ran it since until I can find the correct way to wire it.
Any help would be much appreciated. Thanks.
My problem is I replaced a compressor on a serve over fridge but I cannot work out how to wire the relay. The compressor is a Danfos SC18G.
I don't know where the Live, Neutral and Capacitors are meant to be wired.
It has 10, 11, 13 and 14 underneath each instead of L, N or C and it came with no diagram.
There is a link to the Technical Info and diagram below but it does not say which numbers stand for what.
http://www.ra.danfoss.com/TechnicalInfo/Literature/Manuals/06/sc18g_104g8822_r134a_220v_50hz_60hz_12-2011_dehc403q202.pdf
I tried it first with the Capacitor connected to 10 and 11 (the top two). The Live spade connected to 14 (bottom) and the Neutral spade going to 13 (right).
When I turned it on it tripped the mains breaker as soon as it asked for cooling.
I then tried it with the Capacitor connected to the right two (11 and 13), the Live to 14 and the Neutral to 10 (top left). The compressor ran for a few seconds then blew the breaker again, the compressor was not pumping when it ran. The next time I just switched round the Live and Neutral and it did the same but I unplugged it before it tripped the breaker again.
I have not ran it since until I can find the correct way to wire it.
Any help would be much appreciated. Thanks.