Thanks, I just figured it out now But what about the other stuff ? Is it WIP or something else ?
EDIT: Yes, somehow it started working... It kept taking coolant liquid from the exchanger, devouring it constantly (?!) even after the internal cold tank was full. No hot coolant was transfered to the other tank, no fluid ejector. but in one moment it crashed to desktop. Will try another one with the fresh world. FML 1178, BTW
Bucket with water just filled it, but was completely ignored by the reactor (since water isn't the proper coolant)
Try Build #505 fix Regullator (tank empty crash bug)
make please some pic from you setup .. then I can say more