the difference between Fan Coil Total Cooling Rate and Cooling Coil Total Cooling Rate?

asked 2017-08-21 01:10:31 -0600

Richard

85 ●6

updated 2017-08-21 08:38:39 -0600

__AmirRoth__

4446 ●5 ●17 http://bleedinggreenna...

What is the difference between Fan Coil Total Cooling Rate and Cooling Coil Total Cooling Rate? I put ZoneHVAC:FourPipeFanCoil in a zone，and i found huge difference between Fan Coil Total Cooling Rate and Cooling Coil Total Cooling Rate, the Cooling Coil Total Cooling Rate is much larger than Fan Coil Total Cooling Rate, why?

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answered 2017-08-21 08:33:35 -0600

rraustad

13834 ●79 ●12 http://www.fsec.ucf.edu/

Because of outdoor air. The Fan Coil Total Cooling Rate is what is provided to the zone (i.e., Tsa - Tzone). The Cooling Coil Total Cooling Rate is the total load on the system coil including fan heat and outdoor air load (i.e., Tcoil, outlet - Tcoil, inlet).