[Equest-users] Integrated Thermostat and Occupancy Lighting Control

[Chris Jones]

I have seen a number of projects with an occupancy sensor in each 
space.  The sensor turns off the lights and shuts the VAV box to a 
minimum when there are no occupants in the space.  This saves 
lighting, outdoor air and fan energy.  The same type of sensor is 
also used to control fan coils - the outdoor air duct to the fan coil 
also has a damper connected to the occupancy sensor.  Schools are 
where I have seen this type of sensor used.

At 08:27 AM 14/01/2011, John T. Forester wrote:
>Content-Language: en-US
>Content-Type: multipart/alternative;
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>boundary="_000_FE42F90348662D4AA5177E97E20458AB4F73842198JupiterBBVHis_"
>
>Aman,
>
>Appendix G, Table G3.2 allows for either 10% or 15% reductions in 
>connected lighting power based on the type of control your proposed 
>design includes.  Perhaps increasing the throttling range in those 
>spaces by the same amount will provide some savings for you.  If 
>your throttling range is 5$B!k(BF, try changing it to 5.5$B!k(BF or 
>6$B!k(BF and see how the heating, cooling and fan energy is affected.
>
>My thought is that if an occupancy sensor also adjusts the 
>setback/set forward temperature, you can make an educated guess on 
>how many degrees the room will vary before another occupant enters 
>the room.  Then the room will have to be conditioned back to the 
>occupied setpoint (based on your heating/cooling schedule) once 
>someone enters the space.  I haven$B!G(Bt vetted this so if someone 
>can see an issue with this approach, please chime in.
>
>John
>
>John T. Forester, P.E., LEED AP, Mechanical Design Engineer I BVH 
>Integrated Services I 617.658.9008 tel I 617.244.3753 fax I One 
>Gateway Center Suite 506, Newton MA 02458 I 
><http://www.bvhis.com>www.bvhis.com I Hartford $B!|(B New Haven $B!|(B Boston
>
>From: equest-users-bounces at lists.onebuilding.org 
>[mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of John Aulbach
>Sent: Friday, January 14, 2011 7:33 AM
>To: equest-users at lists.onebuilding.org; Amandeep Singh
>Subject: Re: [Equest-users] Integrated Thermostat and Occupancy 
>Lighting Control
>
>Sir:
>
>If you can explain how such a system would operate, I am sure it can 
>be relatively simulated in eQuest. I would gues the occupancy 
>sensors can be scheduled to follow people and the thermostat to 
>operate by time.
>
>But I am unsure of your integration visualization.
>
>John Aulbach
>
>--- On Thu, 1/13/11, Amandeep Singh <amandeep.singh at energycenter.org> wrote:
>
>From: Amandeep Singh <amandeep.singh at energycenter.org>
>Subject: [Equest-users] Integrated Thermostat and Occupancy Lighting Control
>To: equest-users at lists.onebuilding.org
>Date: Thursday, January 13, 2011, 3:58 PM
>
>Dear equest users,
>
>
>
>Is there any way to model an integrated thermostats and occupancy 
>sensors control system for VAV in equest?
>
>
>
>Thanks in advance,
>
>Aman
>
>
>
>
>
>
>
>
>
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Chris Jones
14 Oneida Avenue
Toronto, ON M5J 2E3.
Tel.  416-203-7465
Fax. 416-946-1005

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