Went on a call for unit shutting down, and in the customer's words "no water coming out of the drain line" of a pump-and-dump, water-cooled condenser. WRV was sticking, so I backed off the spring a bit and it opened. Now he's happy because there's water dumping, but I digress. Then I noticed freezing at the txv. No noticeable drop across the filter drier, so
what would be ball park pressures and superheat/subcooling numbers for an MP39 system?
with domestic water at the condenser inlet, 72* water temp.