The simplest way to use EMS here would be to actuate the various availability schedules involved.
From: EnergyPlus_Support@xxxxxxxxxxxxxxx [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] On Behalf Of Jean marais
Sent: Monday, October 31, 2011 1:11 PM
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Subject: [EnergyPlus_Support] Re: Disable a DX coil below "xx" temp
I'm going out on a limb here, but I think I read somewhere that an EMS actuator exits which can reach into the dx object inside a unitary system...but I can't remember anything else. It may be worth running a simple EMS with the "verbose" commands and looking at the .edd file if there are any usefull actuators available.
If I remember, I'll check it for you tomorrow.
--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, Chandan Sharma <csharma@...> wrote:
>
> Dear Mr. Dirkes,
>
> Prior to V7, Availability managers can only be used to set turn on/off
> flags for the fan (pump) of entire air (plant) loop. They can not be
> applied to individual components.
> In V7, this feature has been added to several zone components like PTAC,
> PTHP, Window AC, Unit heater etc.
>
> The availability managers always act on the fan/pump availability
> schedule. (not the availability schedule of component which has fan).
>
> In V7, when applying availability manager to zone component object (e.g.
> PTAC), the component object must be available.
>
> Then if its fan schedule is set to off during the night and night cycle
> availability manager is used to turn the fan on in certain conditions,
> the night cycle availability manager will make the fan available even if
> the fan's availability schedule is set to off. But if the DX heating and
> cooling coils are unavailable they won't be turned on by the
> availability manager.
>
> In your current configuration, LowTempTurnOff should turn off the heat
> pump fan whenever the temperature at "NodeIn_OA_BaseSys2-11" is below
> 12.8 C.
>
> Not aware of any other way to achieve your goal. Sorry for the
> inconven
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