Home › Forums › Coking › Technical › Fractionation & Process › Process › Blow down condenser This topic contains 0 replies, has 1 voice, and was last updated by Don Lee 16 years, 5 months ago. Author Posts May 9, 2005 at 1:32 am #4357 Don LeeParticipant Hi everyone~ We operate our Blow down condenser by manual each cycle because auto running logic is too low, at 149C. What about your DCU? We think 180C is acceptable…. Author Posts You must be logged in to reply to this topic.