2019 Breeze Jan-Feb

#1: We decided to run the condensers full out. If we could get the discharge pressure as close to 135 PSIG (78 degrees F saturated); the 78 degree F ammonia going to the oil cooler would allow far better cooling than when the discharge pressure was 165 PSIG (90 degrees F saturated.) This gave us an additional 12 degrees F TD at the oil cooler, i.e. each pound of ammonia absorbed just a little more heat. After two trips to the head and seven rounds, we began to look at the size of the thermosy- phon vessel. It doesn’t matter how big the oil cooler is or how big the mains are if we can’t get enough liquid into the main. We made plans for Bob to install a larger thermosy- phon supply and return mains. Vessel sizing is important, but that’s a discussion for another day! Bar Keep, another cold one!

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