"The zone loads are sensible-only, and do not include ventilation loads. Also, the "calculated" loads (and those in the zsz file) do not include any sizing factor. The component sizing includes factors to actually size system coils and equipment-- such as sensible, latent, ventilation loads, and sizing factors."
Jeremiah D. Crossett | Senior Analyst | Phase Change Energy Solutions
120 E. Pritchard St. | Asheboro, NC 27203 | Mobile 503-688-8951
On Fri, Sep 14, 2012 at 1:54 PM, Jeremiah Crossett <jcrossett@xxxxxxxxxxxxxxx> wrote:
YI, sorry to have had your name wrong- the tables with the highlighted values again are-Report: ComponentSizingSummaryZoneHVAC:IdealLoadsAirSystemReport: HVACSizingSummary
Maximum Heating Air Flow Rate [m3/s] Maximum Cooling Air Flow Rate [m3/s] Maximum Total Cooling Capacity [W] ZONE1AIR 0.013146 0.058907 1007.43 Zone Cooling
Calculated Design Load [W] User Design Load [W] Calculated Design Air Flow [m3/s] User Design Air Flow [m3/s] Design Day Name Date/Time Of Peak Temperature at Peak [C] Humidity Ratio at Peak [kgWater/kgAir] BLOCK1:ZONE1 792.83 792.83 0.059 0.059 LOS ANGELES INTL ARPT ANN CLG 1% CONDNS DB=>MWB 8/21 16:32:00 26.28 0.00955
Jeremiah D. Crossett | Senior Analyst | Phase Change Energy Solutions120 E. Pritchard St. | Asheboro, NC 27203 | Mobile 503-688-8951
On Fri, Sep 14, 2012 at 1:49 PM, Jeremiah Crossett <jcrossett@xxxxxxxxxxxxxxx> wrote:
Jason, Thanks for your input it was very helpful.YI, thanks for your response- however Apparently did not read the post or look at the tables because the values you sent have nothing to do with the discrepancy between theMaximum total cooling capacity" and the "calculated design load" The values in question are highlighted in yellow and make up a rather large discrepancy is not from a sizing multiplier.The questionable values are
- Calculated Design Load [W]= 792.83
- Maximum Total Cooling Capacity [W]= 1007.43
- Delta [W] = 214