It is difficult (if not impossible) to meet the comfort levels required by ASHRAE 55-1992 with natural ventilation. In our climate, having natural ventilation provide comfort four months a year is equivelant to other locations doing it eight or more months a year. We are using a dessicant system to dehumidify. Can we get credit equivelance?
The intent of this credit is to reward and recognize passive comfort control design. In other words, provide comfort through site and building design, not mechanical/electrical systems. Energy savings from the desiccant system can be captured under the Energy Efficiency Credit. This credit title is under discussion, and will probably be re-worded to match the intent during the next revision of LEEDTM. Applicable internationally.