I have a simple dx system (R22) with high superheat,,8-9C.
suction pressure is low 53 psi, though the system appears fully charged when standing ,,,approx 125psi...internal 20C,ambient 25C.
off coil temp 5C.
eventually suctionpressure drops and unit freezes.
there is no discahrge/liq line service valve.
unable to decant system as it is sole supporting critical equipment.
is there a simple answer for high superheat???
what are usual factors for high superheat ???
grateful for any response..