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

asked 2017-08-21 01:10:31 -0500

Richard

85 ●6

updated 2017-08-21 08:38:39 -0500

__AmirRoth__

4436 ●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 -0500

rraustad

13599 ●72 ●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).