Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
Coil capacities and other properties are reported at rated conditions. For DX cooling coils, these are at ARI standard conditions: air entering the cooling coil at 26.7°C dry bulb/19.4°C wet bulb (80F/67F), air entering the outdoor condenser coil at 35°C dry bulb/23.9°C wet bulb (95F/75). For chilled water cooling coils, the rated conditions are rated inlet conditions are: air entering the coil at 26.67C dry bulb/19.44C wet bulb (80F/67F), inlet chilled water temperature = 6.67C (44F). Water coils report the design coil load (total). So there is probably not any latent coil load present in your simulation, but if the auto-sized coil were operating at ARI rated conditions, then it would operate at the reported SHR. I've posted as suggestion Issue #4628 to add reporting of the actual design load used for the sizing (both latent and sensible) for all coils. For now, you must report hourly coil load components for the sizing periods to confirm that there are no latent loads for that coil.
| | 2 | No.2 Revision |
Coil EnergyPlus coil capacities and other properties are reported at rated conditions. For DX cooling coils, these are at ARI standard conditions: air entering the cooling coil at 26.7°C dry bulb/19.4°C wet bulb (80F/67F), air entering the outdoor condenser coil at 35°C dry bulb/23.9°C wet bulb (95F/75). For chilled water cooling coils, the rated conditions are rated inlet conditions are: air entering the coil at 26.67C dry bulb/19.44C wet bulb (80F/67F), inlet chilled water
temperature = 6.67C (44F). Water coils report the design coil load (total). So there is probably not any latent coil load present in your simulation, but if the auto-sized coil were operating at ARI rated conditions, then it would operate at the reported SHR. I've posted as suggestion Issue #4628 to add reporting of the actual design load used for the sizing (both latent and sensible) for all coils. For now, you must report hourly coil load components for the sizing periods to confirm that there are no latent loads for that coil.
