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R100
04-06-2014, 12:25 PM
Dual system,comp was tripping,changed and drier.Head pressure gose crazy high and compressor squels.
Changed the condensor as taught it was blocked.Still doing the same.
Any ideas.

joe-ice
04-06-2014, 03:24 PM
Sounds like you still have a blockage or less likely air in system or overcharge. Remove the gas and blow through with nitogen if it dont come out the other side start cutting .

NewmanRef
04-06-2014, 07:22 PM
The Norpe Dairys are usually cap tube expansion. That's where I'd guess you'll find your blockage.

R100
04-06-2014, 08:07 PM
Thanks guys,cap tube?

joe-ice
04-06-2014, 08:36 PM
Just out of interest how did you recharge the system .normally a system even with a blocked capilliary wouldnt make the compressor squeal it would just pump the charge into condenser and run into a vacuum so theres nothing left to pump.It would however squeal if there there was more gas than the condenser could hold or if the blockage was closer to the discharge outlet

R100
04-06-2014, 09:07 PM
Weighed in,liquid charge gave it 20/30min before starting.Iam thinking it must be between outlet of comp and inlet to condensor.