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If pursuing Option 2, what is the scope of the energy model if the space shares a central plant, and what type of software should be used?

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CI-2009 EAc1.3:Optimize Energy Performance—HVAC

Zoning in Retail

Jan Hesse

Dipl.-Ing.(FH) | LEED AP ID+C

ALPHA Immobilien Consulting GmbH

LEEDuser Basic Member

14 thumbs up

May 30, 2013

I am working on an CI for Retail project. The Retail space will be included in an shopping mall and is three floors high. We have got one exterior fassade over all three floors (south), all others are orientated to the interior of the shopping mall. The whole project is conditioned via one own VAV with active controls (CO2 sensors). Private offices and teakitchens in second floor are separately controlled. Now it is unclear if it is possible to fulfill the requirements for zoning. The main retail space is one big area on the ground floor connected to an other big retail area on the first floor with no room high partitions in the space. Can you please give me an advice if one zone for ground floor and one for first floor is enough or if it is even not possible to earn this credit there?! Thank you in advance

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Marcus Sheffer

LEED Fellow

7group / Energy Opportunities

LEEDuser Expert

4454 thumbs up

Fri, 05/31/2013 - 13:54

Based on your description it does not appear to qualify. You need a zone for each solar exposure. So you would need at least one on the south-side. The remaining area has the same exposure (to the mall) and could be one zone. One could debate this interpretation since there is only one "solar" exposure but in my opinion the remaining area should be treated like a core space.

Jan Hesse

Dipl.-Ing.(FH) | LEED AP ID+C

ALPHA Immobilien Consulting GmbH

LEEDuser Basic Member

14 thumbs up

Fri, 05/31/2013 - 19:56

Thank you for your answer, Marcus! So how can zoning in two different zones be realised? only through room-high partitions?

Marcus Sheffer

LEED Fellow

7group / Energy Opportunities

LEEDuser Expert

4454 thumbs up

Fri, 05/31/2013 - 20:28

They do not need to be separate spaces. They need to have separately zoned HVAC. This could be two different systems or one system with zoning controls.

Jan Hesse

Dipl.-Ing.(FH) | LEED AP ID+C

ALPHA Immobilien Consulting GmbH

LEEDuser Basic Member

14 thumbs up

Sat, 06/01/2013 - 19:06

OK, I understand. Just for verifying: Zoning in one big room with different orientations is also possible via one AHU with active controls (e.g. CO2 sensors) if they act separately in the core and the outer area, regardless if the spaces are connected via air or not? Thank you very much - this helps me a lot!

Toshif Ruikar

MECHANICAL ENGINEER

GE3S ENVIRONMENTAL CONSULTANTS

LEEDuser Basic Member

1 thumbs up

Mon, 05/18/2020 - 08:11

Hi Jan and Marcus, I have one query regarding credit surrounding density and diverse uses. If my project is a retail shop in a multistory mall, can I consider surrounding retail shops to my project in surrounding density calculation as if I mark 400 m from the project boundary it will be within the mall itself? Can I take other floor's retail shops in surrounding density calculation? I want to understand how is the situation for the mall. As my bicycle storage is in the basement of the mall, so how should I calculate my walking distance(Is it as per the height of the building as the employees will use lift to reach there.)

Marcus Sheffer

LEED Fellow

7group / Energy Opportunities

LEEDuser Expert

4454 thumbs up

Mon, 05/18/2020 - 14:01

Toshif, please post your question in the forum for that particular credit.

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Zoning in Retail

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