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Re: [EnergyPlus_Support] Temporarily disable the conditioning



To turn off HVAC you could use the availability schedule, (1 for on and 0 for off)  then combine this ON/OFF with set-points on a schedule.    If this does not satisfy your control requirements than you could write an EMS script that reacts to the weather, zone or other variable with a sensor and control your system with an actuator. 

On Wed, Mar 13, 2013 at 2:16 PM, Abhinandan Majumdar <abhin.nitk@xxxxxxxxx> wrote:
 

Hi Joe,

Thanks for the information. That was really helpful. However, the problem is with the economizer ON, it will bring the outside air and try to meet the set point temperature. If the economizer is OFF, it will actively recondition the room. What I was looking for some way to disable or turn off the HVAC (that includes the economizer) temporarily OFF and let the room temperature decay naturally. After some time, I will start the HVAC again, and set it to a new temperature. Not sure if it is possible, if there is anyway to do it in EnergyPlus, that will be really helpful.

Thanks
Abhi


On Sat, Mar 9, 2013 at 2:37 PM, Joe Huang <yjhuang@xxxxxxxxxxxxxxxxxxxxxxxx> wrote:
Why can't you just set the cooling to a very high temperature and the heating to a very low temperature during those hours?

Joe

On 3/8/2013 2:23 PM, Abhinandan wrote:
 

Hello,

I was wondering how to I temporarily disable the HVAC thermostat setting automatically. What I am intending to do is condition a zone to 21C till 11 am, then let it decay naturally rather than any mechanical cooling till 1 pm, and then again condition it to 21C. If I set the in-between temperature to say 15C, the HVAC attempts to cool it to 15C. What I am looking for is let it decay naturally as if HVAC is off. Anyone has clue how to do it?

Thanks
Abhi






--
Jeremiah D. Crossett  | Senior Analyst  |  Phase Change Energy Solutions
120 E. Pritchard St.  | Asheboro, NC 27203  | Mobile 503-688-8951
  


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