[Equest-users] ER Wheel in Baseline

Anthony via Equest-users equest-users at lists.onebuilding.org
Tue Nov 29 13:44:18 PST 2016


Aru,

 

I may be reading the question wrong but the proposed case system does NOT dictate baseline case ERV requirements.  If the autosized baseline case systems meet the characteristics outlined in 90.1-2007(?) Section G3.1.2.10, then an ERV must be included on that system unless one of the exceptions apply.  

 

Anthony Hardman, PE, BEAP, LEED AP BD+C

Senior Building Performance Analyst

The Green Engineer, Inc.

(978) 610-2801

 

From: Darryl Kasun via Equest-users [mailto:equest-users at lists.onebuilding.org] 
Sent: Monday, November 28, 2016 10:12 PM
To: Arunabha Sau
Cc: equest-users at lists.onebuilding.org
Subject: Re: [Equest-users] ER Wheel in Baseline

 

Hi Aru,

 

Yes you are correct - you have to create an exhaust air heat recovery with at least 50% effectiveness in your baseline bldg.  Check out section 6.5.6.1 of ASHRAE 90.1 for further guidance.  

 

Darryl Kasun, P. Eng, 

Interior Engineering

 

On Mon, Nov 28, 2016 at 6:58 PM, Arunabha Sau via Equest-users <equest-users at lists.onebuilding.org> wrote:

Hello there,

 

 

In a 5A climate zone, I am working with a Proposed model with a RTU (30,000 CFM, 100% OA) with exhaust air ER wheel in it. I am kinda sure that I've to create a ER wheel for the 90.1 Baseline (as per G3.1.2.10). Just want to make sure if I am correct? 

 

Help please. Thanks

 




Best,

Aru Sau

Architectural Sustainability | Energy Analyst

analyzing the ROI of your sustainable initiatives...                                                               

c: 678-467-7934, Ann Arbor, MI


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