I am modeling a residential building with dehumidification. A central unit that injects the outdoor air for the dwelling units and common zones controls the humidity using cooling and heating coils. The HVAC system for this building is #2, according to ASHRAE 90.1 2010. In LEED reference guide, in the Table 3 in the Minimum Energy Performance EA prerequisite there is a note about modeling this systems in the baseline.
“In this situation, model a DOAS in the baseline design using the same volume of outdoor air as for the proposed design, but with the same efficiency and efficiency curves as the baseline HVAC systems. Additionally, the baseline fan power allowance would be separated between the DOAS and the baseline system using the same ratio as the proposed system.”
Can I include cooling and heating coils for humidity control in the Baseline DOAS equipment as in the proposed design?