the project primary HVAC system is VRF+DOAS. there is one work shop space that have no indoor VRF unit but outdoor air intake through DOAS. DOAS is not intended for conditioning space.

Does anybody know if performing energy modeling using ComCheck satisfies the requirements for Whole Building Energy Simulation, or is something more extensive required?

If same Lighting Power Density (W/sf) was used in all zones during the design phase using Building Type Method, should we switch to space by space on its final stage?

Hi, I have a doubt on how to establish the heating setpoint for an HVAC system which has no heating system. In a specific project, I have only cooling system serving conditioned areas.

Hi, we are working on a residential project.

In the proposed design, we are using a water-to-water heat pump for the sole purpose of service water heating. Voltage and Amps are 460v and 140 RLA, respectively.

In environments where they will be covered by natural ventilation, how should I proceed in baseline model? For example, a factory or warehouse with the proposed natural ventilation, must be equal

Hi, Appendix G3.1.3.13 says "Minimum volume setpoints for VAV reheat boxes shall be 2.15 L/s·m2 of floor area served or the minimum ventilation rate, whichever is larger" When you have a HVAC sys

We’re working on a 20 stories building that is seeking LEED NC v3 certification. This building considers ASHRAE’s #8 HVAC baseline system: VAV w/ PFP boxes.