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[EnergyPlus_Support] Cooling coil problem
- To: EnergyPlus_Support@xxxxxxxxxxxxxxx
- Subject: [EnergyPlus_Support] Cooling coil problem
- From: "grandocu" <jgrando@xxxxxxxxxxxxx>
- Date: Thu, 05 Nov 2009 17:34:14 -0000
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- Delivery-date: Thu, 05 Nov 2009 10:35:10 -0700
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Hello,
I have an issue with a HVAC Template: PTAC system. I get the below warning for New York City climate.
** Warning ** Coil:Cooling:DX:SingleSpeed "2-4L PTAC COOLING COIL" - Air-cooled condenser inlet dry-bulb temperature below 0 C. Outdoor dry-bulb temperature = -2.20
** ~~~ ** ... Occurrence info = WINTERDESIGNDAY, 01/02 11:45 - 12:00
** ~~~ ** ... Operation at low ambient temperatures may require special performance curves.
It seems like I have an issue with cooling when the outdoor temperature should be low enough to not need a PTAC unit. Can anyone guide me on how to model someone opening a window to let in cold air or some type of free cooling mode so that the PTAC unit does not try to operate? Thank you.
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