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[EnergyPlus_Support] Air-cooled condenser inlet dry-bulb temperature below 0 C.
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- Subject: [EnergyPlus_Support] Air-cooled condenser inlet dry-bulb temperature below 0 C.
- From: "daveurja" <daveurja@xxxxxxxxx>
- Date: Mon, 16 Nov 2009 19:42:04 -0000
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Earlier this question was posted by John Grando on Nov 5. I am also having similar prpblem for Atlanta Climate. I hope that somebody will answer. Here is the question:
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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