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Re: [EnergyPlus_Support] Fan coil question





I'm traveling all day so I can't check, but ive definitely used it last week to model a water to air heat pump and assigned it as a zone equipment. Check the HVAC template or example files for watertoairheatpump and that should help clarify it.



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Le 11 avr. 2016 à 14:44, "'Jones, Christopher' Christopher.r.Jones@xxxxxxxxxxxx [EnergyPlus_Support]" <EnergyPlus_Support@xxxxxxxxxxxxxxx> a écrit :

 

Thanks for that hint.

 

I don’t completely understand the use of the AirLoopHVAC:UnitarySystem object. You note ZoneHVAC:UnitarySystem but the IO Reference doesn’t specifically include that object. In the AirLoopHVAC:UnitarySystem description, it states that this object can be modeled as zone equipment (i.e., listed in a ZoneHVAC:EquipmentList). This leaves me wondering exactly how it would be defined in an example.

 

I grepped the ExampleFiles folder and didn’t find an example of ZoneHVAC:UnitarySystem in any of those files.

 

 

 

 

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Christopher Jones, P.Eng.
Senior Engineer

 

WSP Canada Inc.

2300 Yonge Street, Suite 2300

Toronto, ON M4P 1E4
T +1 416-644-4226

F +1 416-487-9766

C +1 416-697-0056

 

www.wspgroup.com

 

From: EnergyPlus_Support@xxxxxxxxxxxxxxx [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx]
Sent: Sunday, April 10, 2016 6:01 PM
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Subject: Re: [EnergyPlus_Support] Fan coil question

 

 

Jim's suggestion would work.

 

There's a ZoneHVAC:UnitarySystem that would do the job here as well: it accepts a cooling coil, a heating coil and a supplementary heating coil as far as I recall.

 



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Le 7 avr. 2016 à 20:20, "Jean Marais jeannieboef@xxxxxxxxx [EnergyPlus_Support]" <EnergyPlus_Support@xxxxxxxxxxxxxxx> a écrit :

 

Perhaps in newer versions...in the past I would implement a unitary system (which is not a zone equipment, but you could imagine it as such) which can have water or dx cooling + water or dx or electric heating. The catch is you can only have one unit (airloop) per zone, where as with zone equipment there is no limit.

On 7 Apr 2016 4:08 pm, "'Jones, Christopher' Christopher.r.Jones@xxxxxxxxxxxx [EnergyPlus_Support]" <EnergyPlus_Support@xxxxxxxxxxxxxxx> wrote:

 

We see many high rise multi-family buildings with 2-pipe fan coils and a backup electric heating coil for shoulder seasons when the system is in cooling mode. Can this type of arrangement be modeled with EnergyPlus?

 

 

<image001.png>

Christopher Jones, P.Eng.
Senior Engineer

 

WSP Canada Inc.

2300 Yonge Street, Suite 2300

Toronto, ON M4P 1E4
T +1 416-644-4226

F +1 416-487-9766

C +1 416-697-0056

 

www.wspgroup.com

 



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