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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

Multiple thermostats averaging

If one VAV box with a reheat coil is serving three private offices, would providing one thermostat for each office, and have the controls average the temperature requirement for each thermostat, and modulate the VAV/reheat coil accordingly, comply with this credits requirements?

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John McFarland
Director of Operations
WorkingBuildings, LLC
LEEDuser Expert
39 thumbs up

Sun, 06/09/2013 - 00:58

No, the configuration and control strategy you describe does not comply with the credit requirements. 50% of the occupants have to be able to control their environmental conditions such that each is thermally comfortable. Your scenario has the distinct possibility of having all three occupants be uncomfortable. You'd need at least 2 VAV boxes to meet the credit requirement. Hope this helps. Good luck! Best regards, John

Mon, 06/10/2013 - 17:13

This discussion may also be helpful to reference: http://www.leeduser.com/credit/NC-2009/IEQc6.2?page=0#comment-39062

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