Originally Posted by
US Iceman
Based on a very quick review, the pipe sizes you have listed appear to be OK. The pilot receiver volume also appears sufficient.
In your last drawing you stated the liquid drain temperature from the condenser is 26.6 C (79.9 F), but after the liquid flows through the receiver the liquid ammonia temperature suddenly increases to 34.4 C (93.9 F).
What is the condensing pressure?
Can you provide a drawing of the internals of the receiver also please?