Right sizing of condenser Right sizing of condenser oresakri (Electrical) (OP) 14 Feb 18 06:17 Hello, We would like to change the size of condenser of the existing installation. Which factors should we take into account? Also what are the EN 12900 and ARI rating conditions? RE: Right sizing of condenser racookpe1978 (Nuclear) 14 Feb 18 17:30 Come on! Your question is equal to asking: "My company wants to buy a new truck. What size truck should I tell them to buy, and what Rules should the company that builds the truck follow to be safe for the next 60 years?" You have not told us: Size, rating, pressure, cooling fluid, service, temperature, environment (air temperature,water temperature maximum/minimum, water flow rate), environmental restrictions, country, applicable Code, industry, reason why the current condenser is "wrong sized". You have not told us costs of power, service duration and seasonal changes of the load, of the cooling water OR cooling air - or whatever the cooling fluid could be!), operator quality and training, degree of automation, reason for the service (critical, important, side-stream production, convenience), cost of fuel, cost of whatever gas (probably steam) that you are condensing .... RE: Right sizing of condenser willard3 (Mechanical) 13 Mar 18 13:37 Hire a Mechanical Engineer who deals with this and don't try to bootstrap. RE: Right sizing of condenser MJCronin (Mechanical) 13 Mar 18 17:35 racookpe1978 .... Are you trying to tell us that you are not a mind-reader ??? Are you saying that anyone who is too lazy to post more than a vague six word question doesn't deserve an answer ? That's not being a really helpful member of eng-tips !!!! MJCronin Sr. Process Engineer RE: Right sizing of condenser racookpe1978 (Nuclear) 14 Mar 18 21:47 /sarcasm. Yes, I am not a mind reader. 8<) Yes, I am trying to educate the original writer about what (at a minimum) is needed to ask a simple six word question to a problem that cannot be answered with a textbook, a career, and an entire industry. RE: Right sizing of condenser marty007 (Mechanical) 15 Mar 18 14:31 The funny thing is that you actually answered his question! He was asking what factors he should take into account, and you gave him a great list!