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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

Constant Volume RTUs and Energy Star Label

CI-2009 EAc1.3: Optimize energy performance - HVAC
posted by Sunayana Jain on Jan 31, 2014, 8:41 am

Sunayana Jain L&S Energy Services LEEDuser Basic Member 3 thumbs up February 3, 2014- 8:49 am I am looking for forum's responses quickly. Your views will be appreciated. Log in or register to post comments Marcus Sheffer LEED Fellow 7group / Energy Opportunities LEEDuser Expert 5530 thumbs up February 17, 2014- 12:13 pm Free and fast, pick one.:-) As long as your fan motors are less than 5 HP they do not need to comply so you should be fine under option 1. The previous version of CPG also says "and". For an international project I would think that if you can demonstrate that it meets...

Last reply: Marcus Sheffer, Feb 17, 2014, 12:13 pm