... condensers-FN-15,FN-18,FN-22,FN25are air cooled heat exchangers for refrigeration systemThey are divided in 2groups: ... FN, L.Air cooled condensers-FN-15,FN-18,FN-22,FN25 have ... been tested on 2.8MPa air leakage, and the system is disposed of pollution,Applicable ...