One way to do it would be to assume a run-time for the Proposed Case which could depend on some estimates of the CO produced in the parking garage. I know the Canadian standard is to use a run-time of 6 hours (2 morning, 2 mid-day and 2 evening) for ventilation control.
One thing to keep in mind for LEED is that you will need to demonstrate that CO control is not standard practice in your jurisdiction. I know it's required by the building code here in Ontario, so it can't be claimed for credit.
For multifamily projects, the ENERGYSTAR Multifamily Highrise Simulation
Guidelines includes a simple method of reducing scheduled operation of the
exhaust fans. This is how it is typically done. Outside of multifamily,
you will need to provide some additional backup documentation for reducing
the operation of the fans.
The guidelines can be found here:
http://www.energystar.gov/ia/partners/bldrs_lenders_raters/downloads/mfhr/ENERGY_STAR_MFHR_Simulation_Guidelines_V1.0.pdf
Oscar: I agree that the key issue for you is determining if your 'base
building" requires CO sensors.(based on local codes). If required, you
can't get credit, if not required, that opens the possibility to seeking
credit.
Hi Oscar,
One way to do it would be to assume a run-time for the Proposed Case which could depend on some estimates of the CO produced in the parking garage. I know the Canadian standard is to use a run-time of 6 hours (2 morning, 2 mid-day and 2 evening) for ventilation control.
One thing to keep in mind for LEED is that you will need to demonstrate that CO control is not standard practice in your jurisdiction. I know it's required by the building code here in Ontario, so it can't be claimed for credit.
All the best,
Dan
?
Daniel Knapp, PhD, LEED? AP O+M
Oscar,
For multifamily projects, the ENERGYSTAR Multifamily Highrise Simulation
Guidelines includes a simple method of reducing scheduled operation of the
exhaust fans. This is how it is typically done. Outside of multifamily,
you will need to provide some additional backup documentation for reducing
the operation of the fans.
The guidelines can be found here:
http://www.energystar.gov/ia/partners/bldrs_lenders_raters/downloads/mfhr/ENERGY_STAR_MFHR_Simulation_Guidelines_V1.0.pdf
Refer to page 26 of the document.
-Robby
Oscar: I agree that the key issue for you is determining if your 'base
building" requires CO sensors.(based on local codes). If required, you
can't get credit, if not required, that opens the possibility to seeking
credit.
Good luck,
Jon Broadway