RE: [EnergyPlus_Support] Re: Availability of IdealLoadsAirSystem using EMS

If you are an advanced EPlus user, go ahead and try it.

Otherwise, using a thermostat to control a HVAC in the next room with a open door partition, is just the same as a single zone with the theremostat mounted away from the fan coil unit.

EPlus does not specify the location of the theremostat and the HVAC unit in a zone.

Dr. Li

To: EnergyPlus_Support@xxxxxxxxxxxxxxx
From: laxoayi@xxxxxxxxxxxxxxxx
Date: Sat, 1 Oct 2011 18:37:45 +0000
Subject: [EnergyPlus_Support] Re: Availability of IdealLoadsAirSystem using EMS

Thanks for your reply.
I'll describe what I'm trying to achieve and hopefully you can advise. Consider I have two adjacent thermal zones A and B connected by an opening using AFN objects. Zone A is controlled using an IdealLoadsAirSystem with a thermostat control type always as ThermostatSetpoint:SingleHeatingorCooling (i.e. the IdealLoadsAirSystem is always on) and a setpoint schedule specified for the same zone. Zone B on the other hand is uncontrolled.
Is it possible to use EMS to control the availability (i.e. turning on/off) of the IdealLoadsAirSystem in zone A using the mean air temperature in Zone B. I believe that in this case the EMS sensor will be zone B's mean air temperature but I can't figure out what the actuator for the IdealLoadsAirSystem is. Any Ideas?

Thanks in advance, your help is very much appreciated.

--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, YuanLu Li <yli006@...> wrote:
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> IdealLoadsAirSystem is individual zone thermostat controlled. You may have used a common setpoint schedule, and a common type declaration for the thermostat..
> Each zone is turned off when the zone mean temperature has reached the scheduled set point temperature. The dual-band dead band can be adjusted to disable the system completely, zone by zone. Dr. Li
> To: EnergyPlus_Support@xxxxxxxxxxxxxxx
> From: laxoayi@...
> Date: Thu, 29 Sep 2011 11:22:13 +0000
> Subject: [EnergyPlus_Support] Availability of IdealLoadsAirSystem using EMS
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> Hi All,
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> Is it possible to use EMS to control the availabilty of an Ideal Loads Air System depending on the zone's mean air temperature as a sensor?
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> Thanks,
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> Omar
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