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CI-2009 EAc1.3:Optimize Energy Performance—HVAC
posted by  Dominique Arrieta  on 

Hello, we have recently realized that our project gross area was one number, and the energy model done by our engineer did not include an atrium space in the middle of the project (project is on 3r

3
Tue Jul 10, 2012, 4:37 pm

VAV system required for small DX?

CI-2009 EAc1.3:Optimize Energy Performance—HVAC
posted by  Daniel Thien  on 

I am researching option 1 for Advanced building requirements. We are working in a 1 story industrial park and are installing new 10 ton and below DX RTUs.

2
LEED Fellow
7group / Energy Opportunities
LEEDuser Expert
4454 thumbs up
Tue May 15, 2012, 10:04 pm

exhaust fans in lieu of VAVs?

CI-2009 EAc1.3:Optimize Energy Performance—HVAC
posted by  rob moylan  on 

We have 4 person meeting rooms that are typically used for less than an hour at a time, yet during our GBCI audit a comment was made that these spaces need to be controlled individually.

2
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Environmental Engineer
Metadesign Architects Pvt. Ltd.
LEEDuser Basic Member
43 thumbs up
Mon Apr 9, 2012, 6:05 pm

Option 2/ Path 2- Square Footage

CI-2009 EAc1.3:Optimize Energy Performance—HVAC
posted by  Dominique Arrieta  on 

Our engineer used the net SF for this calculation instead of the gross SF which matches the PI forms. I know this will be a red flag, but does anyone know if this will be acceptable?

2
Executive Director
Empirical Energy Solutions
LEEDuser Basic Member
23 thumbs up
Thu Mar 29, 2012, 2:31 pm

Core Performance Guide Requirements for Efficiency

CI-2009 EAc1.3:Optimize Energy Performance—HVAC
posted by  Erik Dyrr  on 

To earn 5 points using Option 1: Equipment Efficiency, systems must comply with the efficiency requirements outlined in the Core Performance Guide.

2
LEED Fellow
7group / Energy Opportunities
LEEDuser Expert
4454 thumbs up
Tue Mar 20, 2012, 6:17 pm

Can title 24-2008 compliance be used in lieu of ASHRAE 90.1-200?

CI-2009 EAc1.3:Optimize Energy Performance—HVAC
posted by  Leticia SooHoo  on 

I am currently involved in a 200,000SF LEED-CI 2009 project in California. To achieve credit EAc1.3, can title 24-2008 be used in lieu of ASHRAE 90.1-2007? Any advice will be appreciated.

5
Architect, Senior Project Manager
IA Interior Architects
LEEDuser Basic Member
52 thumbs up
Fri Mar 16, 2012, 6:47 pm

ASHRAE 55 requirement in EAc1.3

CI-2009 EAc1.3:Optimize Energy Performance—HVAC
posted by  Juliana Malho  on 

Does anyone knows if ASHRAE 55 is really a requirement for the credit?

4
Mechanical Engineer
Integral Group
LEEDuser Expert
342 thumbs up
Fri Mar 2, 2012, 1:42 am

EAc1.3 A - Equipment Efficiency

CI-2009 EAc1.3:Optimize Energy Performance—HVAC
posted by  Geoffrey Eddy  on 

I recently completed a CI in an old building with a constant volume Interior and console heat pumps on the perimeter.

9
Mechanical Engineer
Integral Group
LEEDuser Expert
342 thumbs up
Mon Feb 6, 2012, 11:28 am

Savings calculations

CI-2009 EAc1.3:Optimize Energy Performance—HVAC
posted by  Sundararaj Subburaman  on 

Our client is occupying the 8th floor of a G+8 building. The central plant is a combination of Air cooled and water cooled chillers.

4
Sat Mar 5, 2011, 4:57 am