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Conflicting Requirements in Interpretations re: Active Controls?

CI-2009 EAc1.3: Optimize energy performance - HVAC
posted by Theresa Schroeder on Jun 23, 2014, 3:15 pm

I am working on a multi-story office fitout for a single tenant, and we received a review comment on our submission regarding EAc1.3 asking us to "provide documentation that all conference rooms...

Last reply: Michael Smithing, Jun 24, 2014, 9:43 am

Energy Modeling

CI-2009 EAc1.3: Optimize energy performance - HVAC
posted by Charles Nepps on May 22, 2014, 9:18 am

We received a review comment back, on Energy Modeling report use to document EA cr1.3, that stated the following: "The Proposed design air cooled chiller COP for office is indicated 2.5 does not...

Last reply: Marcus Sheffer, May 23, 2014, 1:12 pm

trying to understand the effort

CI-2009 EAc1.3: Optimize energy performance - HVAC
posted by Ramana Koti on May 21, 2014, 4:49 pm

Hello. We're trying to decide if pursuing energy modeling under Option 2's Path 1 would be worth the effort. The project is a tenant fit out of the 23rd and 24th floor in one of the two 24 floor...

Appropriate Zoning and Controls Questions

CI-2009 EAc1.3: Optimize energy performance - HVAC
posted by Patrick Salmon on May 1, 2014, 11:50 am

We have an open office...

Last reply: Marcus Sheffer, May 13, 2014, 9:40 am

Project Scope and Tenant Scope

CI-2009 EAc1.3: Optimize energy performance - HVAC
posted by Thiago Bondini on Mar 11, 2014, 4:55 pm

Another one I can´t quite get my head around.
Our client will be the sole tenant in a small commercial building. The owner has provided a VRF system complete with the condensers and...

Last reply: Ante Vulin, Apr 11, 2014, 1:16 pm

Option 1: Existing Equipment

CI-2009 EAc1.3: Optimize energy performance - HVAC
posted by Steve Gross on Mar 27, 2014, 8:59 pm

I have read Interpretation #10134 and 10135, but based on some of the comments below, I would like some additional confirmation. Does new system-level mechanical equipment that serves 60% of the...

Last reply: Ante Vulin, Apr 11, 2014, 1:13 pm

Tenant space fan & pump sizing

CI-2009 EAc1.3: Optimize energy performance - HVAC
posted by Mike D on Mar 14, 2014, 6:11 am

We are a bit confused as to the meaning of space fan and pump sizing? Could anyone please offer some clarification?

Thanks!

Last reply: Marcus Sheffer, Mar 14, 2014, 11:16 am

Option 2: ASHRAE 90.1-2007 Section 11?

CI-2009 EAc1.3: Optimize energy performance - HVAC
posted by Steve Gross on Mar 6, 2014, 5:40 pm

Even though the credit language does not state it explicitly, I read "reduce design energy cost compared with the energy cost budget for regulated energy components" to mean "reduce the design...

Last reply: Marcus Sheffer, Mar 6, 2014, 5:57 pm

Base build pumps and fans

CI-2009 EAc1.3: Optimize energy performance - HVAC
posted by Mike D on Feb 27, 2014, 9:21 am

Hello,
If all central pumps and fans are base build, does section 3.10 of the form need to be completed?
Also, does the 'Total tenant space fan and pump sizing' under section 1.4 have...

Last reply: Dylan Connelly, Mar 4, 2014, 6:59 pm

One RTU not qualifying the prescriptive requirements

CI-2009 EAc1.3: Optimize energy performance - HVAC
posted by Sunayana Jain on Jan 20, 2014, 3:14 pm

Hi, I am working on a LEED CI project in which HVAC equipments (serving tenant space) are not being replaced ( 5 RTU units), one of the RTU unit is very old and does not qualify Efficiency...

Last reply: Sunayana Jain, Feb 17, 2014, 1:54 pm