Neal Lewis Posted May 19, 2012 Report Share Posted May 19, 2012 Here's a picture of an abandoned cooling coil inside the ducting of a warm air furnace. The cooling coil could be at least 50 years old. There was a drain pipe coming out of the duct marked "compressor water drain". Any exterior components are long gone. What kind of AC system was this? Click to Enlarge 49.38 KB Quote Link to comment Share on other sites More sharing options...
kurt Posted May 19, 2012 Report Share Posted May 19, 2012 An old water system...(?).... Quote Link to comment Share on other sites More sharing options...
Jim Katen Posted May 19, 2012 Report Share Posted May 19, 2012 It could have been a water source system or they could have just mislabeled the drain. Maybe they meant to write, "condensate drain." Quote Link to comment Share on other sites More sharing options...
ghentjr Posted May 19, 2012 Report Share Posted May 19, 2012 Probably a swamp cooler. http://en.wikipedia.org/wiki/Evaporative_cooler Quote Link to comment Share on other sites More sharing options...
Marc Posted May 19, 2012 Report Share Posted May 19, 2012 Water systems don't use expansion valves and evaporative coolers evaporate water directly into the air. My guess is an ammonia/water absorptive system which used a pump/heat source or a refrigerant compression system like nowadays. Neither would explain the label. Long time no see Terry. Marc Quote Link to comment Share on other sites More sharing options...
Jim Katen Posted May 19, 2012 Report Share Posted May 19, 2012 Water systems don't use expansion valves and evaporative coolers evaporate water directly into the air. . . . The small single family type water-source AC system's I've seen do use expansion valves. On the evaporator side, they look just like an air to air system, but on the condenser side, the refrigerant runs through a coil of water. When the system is running, the water is running, so it needs a place to drain. Quote Link to comment Share on other sites More sharing options...
Marc Posted May 19, 2012 Report Share Posted May 19, 2012 Ok. By 'water system', I though was meant either chiller-like systems that use water to distribute cooling loads or hot water heating systems that use a heat exchanger in the airflow. Marc Quote Link to comment Share on other sites More sharing options...
hausdok Posted May 19, 2012 Report Share Posted May 19, 2012 What kind of AC system was this? Click to Enlarge 49.38?KB Who cares? I'd tell 'em to get that bio experiment pulled out of there or wear an oxygen tank and full-face mask while in the home. It'd be an over-the-top comment but I'm sure they'd understand the point I was trying to make. That's just nasty! ONE TEAM - ONE FIGHT!!! Mike Quote Link to comment Share on other sites More sharing options...
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