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I’m working on a project that has transient occupants. How does the IEQ space matrix address transients, and are transients required to have access to the controls?

Do I have to include all individual and multi-occupant spaces and do they have to be consistent across IEQc6.1 and IEQc6.2?

The categories given in the IEQ space matrix don’t really fit how some of the rooms in my project will be used. What should I do?

In some areas, individual fan coil units can be adjusted through the BMS, which can be accomplished by the occupant phoning the building manager. As each unit can be controlled, is this sufficient for occupant controllability? A benefit is that the BMS ca

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NC-2009 IEQc6.2:Controllability of Systems—Thermal Comfort

Dear Sirs,
We are consultants

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Maya Karkour
EcoConsulting
LEEDuser Basic Member
549 thumbs up

Dear Sirs, We are consultants for a mall seeking LEED. Most of the spaces will be tenanted. The owner will be installing the main HVAC system (Chillers & Boilers), whereas the tenants will fit out their HVAC system later. I am trying to assess the difficulty in achieving this credit. The mall will contain retail shops, restaurants, and movie theaters (all are tenanted). The C&S areas fitted by the owner are basically the underground parking levels and the mall circulation areas (mall concourse). My queries below: 1) Generally speaking, is it too difficult to achieve this credit? 2) The mall concourse circulation is occupied by transient occupants. It would not make sense to provide these transients with thermal comfort controls. However, the circulation area has a thermostat which is controlled by the Mall's facility managers if need be. Is this sufficient for complying with this credit? 3) Restaurants & Retail shops will have FTE employees and transient visitors. Is it sufficient to have 1 thermostat control for each restaurant / retail, and this thermostat operated by the shop's employees (not transients)? If a retail shop has 3 employees, it doesn't make sense to provide 3 controls, as the employees will be constantly moving in the shop (unlike a shared office space whereby each person works on 1 fixed desk). Thanks! PS: I posted this under LEED C&S forum a week ago but didn't get any response - I feel that the NC forum is always in action!

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Julia Weatherby
President
Weatherby Design & Co. Engineers
LEEDuser Basic Member
67 thumbs up

Fri, 04/11/2014 - 21:45

Note that core and shell projects must purchase or install the mechanical system or operable windows (or a combination of both) in order to achieve the intent of this credit. The distribution ductwork does not have to be completed, however. 1) If you only have one single-zone unit per shop or restaurant, it is probably too difficult to achieve this credit. 2) Some projects have included a narrative stating that staff will be available to adjust the locally accessible room thermostat if requested by transient occupants. Alternately, the public could have access to a very narrow range of set point adjustment that is automatically reset at the start of each day. 3) I believe a restaurant kitchen would need its own thermostat. The counter area might also need a separate control from the kitchen and dining area, depending on the arrangement. While one thermostat for a multi-occupant retail floor should be sufficient, you would also have to provide separate control for any potential back-of house areas such as a manager's office or a staff break room.
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Sara Zoumbaris
Sustainable Design Consulting
LEEDuser Basic Member
20 thumbs up

Mon, 03/09/2015 - 15:45

Does anyone have a reference or LI that discusses the minimum range a thermostat can allow occupants to change if our space's thermostats have set temperatures? Thanks!

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