Norpe Dairy wall

[R100]

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]

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]

The Norpe Dairys are usually cap tube expansion. That's where I'd guess you'll find your blockage.

[R100]

Thanks guys,cap tube?

[joe-ice]

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]

Weighed in,liquid charge gave it 20/30min before starting.Iam thinking it must be between outlet of comp and inlet to condensor.